Component nozzles, component mounting systems

Abstract

By effectively utilizing the outer side (outer wall (85)) of the suction nozzle body (80a) for assembly to the inline shaft (61), and by effectively utilizing the inner side (inner wall (811)) of the suction nozzle body (80a) for assembly to the rotary shaft (41), the suction nozzle body (80a) can be assembled to either the inline shaft (61) or the rotary shaft (41). Therefore, a user of each type of component mounting machine (1A, 1B) of the inline type and the rotary type does not need to prepare dedicated suction nozzles respectively, and the burden required for preparing suction nozzles can be reduced.

Description

Technical Field

[0001] The present invention relates to a technology for assembling a component suction nozzle on a mounting head, wherein the mounting head mounts a component sucked by the component suction nozzle mounted at a lower end on a substrate. Background Art

[0002] Conventionally, there is a component mounting machine that uses a component suction nozzle mounted on the lower end of a mounting head to suck a component while transferring the component to a substrate using the mounting head. In addition, as shown in Patent Document 1, in order to be able to change the component suction nozzle according to the type of component mounted on the substrate, the component suction nozzle is generally mounted in a detachable manner relative to the mounting head.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-046122 Summary of the invention

[0006] Problems to be solved by the invention

[0007] In addition, there are two types of mounting heads used in component mounting machines: an inline head and a rotary head. An inline head has a plurality of inline axes arranged linearly, and a component suction nozzle is mounted at the lower end of the inline axes. On the other hand, a rotary head has a plurality of rotating axes arranged in a circle, and a component suction nozzle is mounted at the lower end of the rotating axes.

[0008] These mounting heads have different structures depending on their uses. That is, since the inline head is used to absorb a variety of components from small to large, the inline axes are arranged at a relatively wide pitch. On the other hand, the rotary head is used to absorb many small components at a time, so the rotary axes are arranged at a relatively narrow pitch. And, depending on the arrangement of such axes, the assembly mechanism of the component suction nozzle is also different.

[0009] That is, the in-line head has a pair of leaf springs at the lower end of the in-line shaft, and the pair of leaf springs clamp the component nozzle by their respective elastic forces, thereby assembling the component nozzle to the in-line shaft. On the other hand, in the rotary head, since the rotary shafts are arranged at a narrow interval, it is impossible to ensure space for arranging a pair of leaf springs. Therefore, an embedding hole into which the embedding portion at the lower end of the rotary shaft can be embedded is formed in the component nozzle, and an assembly mechanism for the component nozzle is provided on the inner side of the embedding hole. Specifically, an engaging portion is provided on the inner side of the embedding hole, so that the engaging portion engages with the engaged portion of the embedding portion embedded in the embedding hole from above, and a force is applied downward to the component nozzle by a force-applying member, thereby assembling the component nozzle to the rotary shaft.

[0010] Incidentally, in the assembly mechanism of the rotary head, if the force-applying member cannot fully resist the impact applied to the component nozzle when installing the component, the component nozzle will be detached from the rotating shaft. Therefore, in the component nozzle assembled on the rotary head, the lower end of the nozzle is mounted movably up and down relative to the nozzle body, and a spring coil (buffer member) is used to apply force downward to the lower end of the nozzle, thereby preventing the component nozzle from falling off due to the impact when installing the component.

[0011] However, this structure is suitable for rotary heads that are used for small components, but not for in-line heads that are used for not only small components but also large components. That is, due to the clearance between the nozzle body and the lower end of the nozzle, there is a situation where the rotational position of the component sucked by the component nozzle is offset. Such positional offset is not a problem in the installation of small components, but it becomes a problem in the installation of large components. Therefore, for the in-line head, it is necessary to assemble a rigid component nozzle.

[0012] According to the above situation, it is considered necessary to equip the inline head and the rotary head with dedicated component suction nozzles, respectively. As a result, users who have component mounting machines of each type, inline type and rotary type, need to prepare a plurality of component suction nozzles.

[0013] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a technology capable of reducing the burden required for users who own component mounting machines of each type, i.e., an in-line type and a rotary type, to prepare component nozzles.

[0014] Technical solutions to solve problems

[0015] The component suction nozzle involved in the present invention comprises: a suction nozzle body, an embedding hole opening upward; a snap-fitting portion, which is arranged on the inner side of the embedding hole; a pair of snap-fitting protrusions, which are arranged on the outer side of the suction nozzle body and protrude laterally; a lower end portion of the suction nozzle, which is movably installed up and down relative to the suction nozzle body and contacts the component when sucking the component; and a buffer member, which applies force to the lower end portion of the suction nozzle downward relative to the suction nozzle body, and the snap-fitting portion provided at the lower end of the rotating shaft of the rotating head having multiple rotating shafts arranged in a circle is embedded in the embedding hole from above, and the snap-fitting portion contacts the snap-fitting portion embedded in the embedding hole from above. The engaging part is engaged with the engaged part, and the force-applying member of the rotating head applies force to the suction nozzle body downward, thereby maintaining the engagement between the engaging part and the engaged part. A pair of engaging protrusions are separated from each other by making a pair of engaged protrusions respectively arranged on a pair of elastic members overcome the elastic force of the elastic members, and at the same time enter between the pair of engaged protrusions from below, thereby engaging with the pair of engaged protrusions from above. The pair of elastic members are arranged at the lower end of the inline shafts of the inline head having a plurality of inline shafts arranged in a straight line, and the engagement between the engaging protrusions and the engaged protrusions is maintained by the elastic force of the pair of elastic members.

[0016] The component mounting system involved in the present invention comprises: a rotary component mounting machine, which has a rotary head, the rotary head has a plurality of rotating shafts arranged in a circle, and uses a component suction nozzle installed at the lower end of the rotating shaft to absorb components and mount the components on the substrate; and an in-line component mounting machine, which has an in-line head, the in-line head has a plurality of in-line shafts arranged in a straight line, and uses a component suction nozzle installed at the lower end of the in-line shaft to absorb components and mount the components on the substrate, the component suction nozzle comprises: a suction nozzle body, the embedding hole is open to the top; a snap-fitting part, which is arranged on the inner side of the embedding hole; a pair of snap-fitting protrusions, which are arranged on the outer side of the suction nozzle body and protrude laterally; the lower end of the suction nozzle is movably installed relative to the suction nozzle body up and down, and contacts with the component when the component is absorbed; and a slow-release part. The punching member applies force downward to the lower end of the suction nozzle relative to the suction nozzle body, and the engaged portion arranged at the lower end of the rotating shaft is embedded in the embedding hole from above. The engaging portion engages with the engaged portion by contacting the engaged portion embedded in the embedding hole from above, and the suction nozzle body is forced downward by the force-applying member possessed by the rotating head, thereby maintaining the engagement between the engaging portion and the engaged portion. A pair of engaging protrusions are separated from each other by making a pair of engaged protrusions respectively arranged on a pair of elastic members overcome the elastic force of the elastic members while entering between the pair of engaged protrusions from below, thereby engaging with the pair of engaged protrusions from above. The pair of elastic members are arranged at the lower end of the in-line shaft, and the engagement between the engaging protrusions and the engaged protrusions is maintained by the elastic force of the pair of elastic members.

[0017] In the present invention (component nozzle, component installation system) constructed in this way, a pair of engaging protrusions protruding to the side are provided on the outer side of the nozzle body of the component nozzle. The pair of engaging protrusions are separated from each other by making a pair of engaged protrusions respectively provided on a pair of elastic members overcome the elastic force of the elastic members, while entering between the pair of engaged protrusions from below, thereby engaging with the pair of engaged protrusions from above, and the pair of elastic members are provided at the lower end of the in-line shaft. And, the engagement between the engaging protrusions and the engaged protrusions is maintained by the elastic force of the pair of elastic members, thereby assembling the component nozzle to the in-line shaft.

[0018] Furthermore, the nozzle body of the component nozzle is provided with an embedding hole opening upward and a clamping portion provided inside the embedding hole. The clamped portion provided at the lower end of the rotating shaft is embedded from above relative to the embedding hole, and the clamping portion of the component nozzle is engaged with the clamped portion by contacting the clamped portion embedded in the embedding hole from above. Furthermore, the clamping portion and the clamped portion are maintained in engagement by the force applying member of the rotating head to the nozzle body downward, thereby assembling the component nozzle to the rotating shaft.

[0019] In this way, the component suction nozzle of the present invention can be mounted on either the inline head or the rotary head by effectively utilizing the outer side of the nozzle body for mounting on the inline head and the inner side of the nozzle body for mounting on the rotary head. Therefore, users who have component mounting machines of each type, inline type and rotary type, do not need to prepare dedicated component suction nozzles respectively, and the burden required for preparing component suction nozzles can be reduced.

[0020] In addition, the component suction nozzle can also be configured such that the engaging portion has a concave portion, the engaged portion has a convex portion, and the concave portion of the engaging portion engages with the convex portion of the engaged portion. In this structure, the component suction nozzle can be assembled to the rotary head by a simple structure in which the concave portion and the convex portion engage.

[0021] In addition, the component suction nozzle can also be configured such that the engaging portion has a convex portion, the engaged portion has a concave portion, and the convex portion of the engaging portion engages with the concave portion of the engaged portion. In this structure, the component suction nozzle can be assembled to the rotary head by a simple structure in which the concave portion and the convex portion engage.

[0022] Effects of the Invention

[0023] According to the present invention, it is possible to reduce the burden required for a user who owns a component mounting machine of each type of the in-line type and the rotary type to prepare component suction nozzles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a block diagram showing an example of a component mounting system according to the present invention.

[0025] Figure 2 It is schematically indicated Figure 1 A diagram showing a structure common to both rotary-type and in-line-type component mounting machines of a component mounting system.

[0026] Figure 3 This is a front view partially showing the structure of a rotary head included in a rotary type component mounting machine.

[0027] Figure 4 It is a bottom view partially showing the structure of a rotary head provided in a rotary type component mounting machine.

[0028] Figure 5 This is a front view partially showing the structure of an inline head included in an inline type component mounting machine.

[0029] Figure 6 It is a bottom view partially showing the structure of an inline head included in the inline type component mounting machine.

[0030] Figure 7 It is a partial front view schematically showing the vicinity of the lower end of the rotation shaft.

[0031] Figure 8 It is a partial side view schematically showing the vicinity of the lower end of the rotating shaft.

[0032] Fig. 9 yes Figure 2 A partially cutaway sectional view of the axis of rotation.

[0033] Fig.10 It is a partial front view schematically showing the vicinity of the lower end of the in-line shaft.

[0034] Fig.11 It is a partial front view showing the vicinity of the lower end of the rotating shaft according to the modified example.

[0035] Fig.12 It is an upper perspective view showing the vicinity of the lower end of the rotating shaft according to the modification.

[0036] Fig.13 It is a diagram schematically showing an assembly mechanism of a rotating shaft and a suction nozzle according to a modified example. DETAILED DESCRIPTION

[0037] Figure 1 This is a block diagram showing an example of a component mounting system involved in the present invention. As shown in the figure, the component mounting system MS includes a rotary component mounting machine 1A and an in-line component mounting machine 1B. These component mounting machines 1A and 1B are arranged in series in the X direction (horizontal direction), and components are mounted on a substrate in the order of the component mounting machines 1A and 1B. That is, the component mounting machine 1B mounts components on a substrate on which the components have been mounted by the component mounting machine 1A. The difference between the rotary and in-line component mounting machines 1A and 1B lies mainly in the structure of the mounting head. Therefore, the components mounted on the substrate by the rotary and in-line component mounting machines 1A and 1B are used. Figure 2 After explaining their similarities, their differences will be explained.

[0038] Figure 2 It is schematically indicated Figure 1 This is a diagram showing the structure that is common to both rotary and inline component mounting machines in the component mounting system. Figure 2 In the following figures, the X direction, Y direction, and Z direction are appropriately shown. Here, the X direction and the Y direction are both horizontal directions and are orthogonal to each other. The Z direction is a vertical direction orthogonal to the X direction and the Y direction. In addition, the component mounting machine 1 is referred to as such without particularly distinguishing between the rotary type and the inline type.

[0039] The component mounting machine 1 includes a pair of conveyors 12, 12 installed on a base 11. The component mounting machine 1 carries the components to the working position ( Figure 1 Component installation is performed on the substrate B at the position of the substrate B, and the substrate B after component installation is moved out from the working position to the downstream side in the X direction by the conveyor 12.

[0040] In the component mounting machine 1, a pair of Y-axis rails 21, 21 extending in the Y direction, a Y-axis ball screw 22 extending in the Y direction, and a Y-axis motor My for rotationally driving the Y-axis ball screw 22 are provided, and an X-axis rail 23 is fixed to a nut of the Y-axis ball screw 22 in a state of being supported by the pair of Y-axis rails 21, 21 so as to be movable in the Y direction. An X-axis ball screw 24 extending in the X direction and an X-axis motor Mx for rotationally driving the X-axis ball screw 24 are mounted on the X-axis rail 23, and a mounting head H is fixed to a nut of the X-axis ball screw 24 in a state of being supported by the X-axis rail 23 so as to be movable in the X direction. Therefore, the mounting head H can be moved in the Y direction by rotating the Y-axis ball screw 22 using the Y-axis motor My, or the mounting head H can be moved in the X direction by rotating the X-axis ball screw 24 using the X-axis motor Mx.

[0041] Two component supply sections 25 are arranged in the X direction on both sides of the Y direction of a pair of conveyors 12, 12, respectively, and in each component supply section 25, a plurality of belt feeders 251 are arranged in the X direction at a predetermined arrangement pitch P. Each belt feeder 251 has a component supply position 252 at the front end portion on the conveyor 12 side, and supplies components E accommodated in the component supply belt to the component supply position 252. The component supply belt stores components E in each of a plurality of pockets arranged in a row at equal intervals, and the belt feeder 251 intermittently feeds the component supply belt in the Y direction in units of the pitch, thereby supplying components E to the component supply position 252. The components E accommodated in the component supply belt are, for example, small-chip electronic components such as integrated circuits, transistors, or capacitors.

[0042] The mounting head H uses a suction nozzle described later to suck the component E from the tape feeder 251 and transfer the component E to the substrate B, thereby performing the component E on the substrate B. The specific structure of the mounting head H differs depending on whether the component mounting machine 1 is a rotary type or a serial type. This point will be described next.

[0043] Figure 3 This is a front view partially showing the structure of a rotary head provided in a rotary type component mounting machine. Figure 4This is a bottom view partially showing the structure of the rotary head of the rotary component mounting machine. The rotary head Ha of the rotary component mounting machine 1A has: a plurality of rotating shafts 41 arranged at equal intervals (e.g., 10 degrees) in a circular shape with the rotation center Cr as the center; and a shaft support member 42 supporting the rotating shafts 41. The shaft support member 42 has a roughly cylindrical shape with the rotation center Cr as the center, and supports each rotating shaft 41 in a manner that allows it to be raised and lowered in the Z direction. Moreover, the plurality of rotating shafts 41 are supported by the shaft support member 42 in a manner that allows them to rotate (rotate) around their respective axes parallel to the Z direction.

[0044] The rotary head Ha has a nozzle holding member 5 attached to the lower end 401 of each rotating shaft 41 protruding downward from the shaft support member 42. The rotary head Ha applies negative pressure to the nozzles attached to the nozzle holding member 5, thereby sucking the components E with the nozzles.

[0045] Figure 5 This is a front view partially showing the structure of an inline head provided in an inline type component mounting machine. Figure 6 This is a bottom view partially showing the structure of an inline head of an inline component mounting machine. The inline head Hb of the inline component mounting machine 1B has: a plurality of inline shafts 61 arranged linearly at an arrangement pitch P in the X direction; and a shaft support member 62 supporting the inline shafts 61. The shaft support member 62 supports each inline shaft 61 so that it can be raised and lowered in the Z direction. In addition, the plurality of inline shafts 61 are supported by the shaft support member 62 so that they can rotate (rotate) around their respective axes parallel to the Z direction.

[0046] In addition, the inline head Hb has a nozzle holding member 7 provided at the lower end 601 of each inline shaft 61 protruding downward from the shaft support member 62. Figure 5 and Figure 6 In the example of , a suction nozzle 8 is mounted with respect to each suction nozzle holding member 7. And, the inline head Hb applies negative pressure to the suction nozzle 8 mounted to the suction nozzle holding member 7, thereby using the suction nozzle 8 to suck the component E. By the way, the arrangement pitch P of the plurality of inline shafts 61 arranged in the inline head Hb, in other words, the arrangement pitch P of the plurality of suction nozzles 8 arranged is equal to the arrangement pitch P of the belt feeders 251 arranged. Therefore, the inline head Hb can suck the components E from the plurality of belt feeders 251 at the same time using the plurality of suction nozzles 8.

[0047] Furthermore, the suction nozzle 8 used in the component mounting system MS has a structure that can be mounted on both the rotary head Ha and the inline head Hb, and can be commonly used in the rotary type and inline type component mounting machines 1A, 1B. This point will be described next.

[0048] Figure 7is a partial front view schematically showing the vicinity of the lower end of the rotation axis, Figure 8 is a partial side view schematically showing the vicinity of the lower end of the rotating shaft, Fig. 9 yes Figure 2 A partial cutaway sectional view of the axis of rotation. Figure 7 and Figure 8 In FIG. 1 , the “Disengaged” column shows a state in which the suction nozzle 8 is separated from the rotating shaft 41 , and the “Engaged” column shows a state in which the suction nozzle 8 is engaged with the rotating shaft 41 . Fig. 9 The state where the suction nozzle 8 is engaged with the rotating shaft 41 is shown. In addition, in each figure, the component E sucked by the suction nozzle 8 engaged with the rotating shaft 41 is appropriately shown. As shown in these figures, the rotary head Ha has a suction nozzle holding member 5 mounted on the lower end 401 of the rotating shaft 41, and the suction nozzle 8 is assembled to the suction nozzle holding member 5 in a detachable manner.

[0049] The nozzle holding member 5 has a main shaft 51 extending in the Z direction and an engaged portion 52 provided at the lower end of the main shaft 51. The engaged portion 52 has a pair of engaged protrusions 521, 521 arranged at an angle of 180 degrees from each other in the rotation direction R. Here, the rotation direction R is a rotation direction centered on the axis C41 of the rotation shaft 41 parallel to the Z direction. The engaged protrusions 521, 521 have a shape that protrudes in opposite directions in the horizontal direction and bulges upward. In addition, a circular ring-shaped pressing plate 46 and a coil-shaped compression spring 47 are respectively embedded in the main shaft 51 of the nozzle holding member 5. That is, the main shaft 51 is respectively inserted into the pressing plate 46 and the compression spring 47. The pressing plate 46 disposed above the engaged portion 52 has a ring shape whose inner diameter is narrower than the width of the upper end of the engaged portion 52 (the distance between the two ends of the engaged protrusions 521, 521), and is configured to not fall off downward by being hooked on the upper end of the engaged portion 52. In addition, the compression spring 47 disposed above the pressing plate 46 has a coil shape whose diameter is wider than the inner diameter of the pressing plate 46 and narrower than the outer diameter of the pressing plate 46, and the lower end of the compression spring 47 abuts against the upper surface of the pressing plate 46.

[0050] The suction nozzle 8 includes a suction nozzle body 80a and a suction nozzle lower end 80b. The suction nozzle lower end 80b protrudes downward from the suction nozzle body 80a, and is installed in a manner that can be raised and lowered in the Z direction relative to the suction nozzle body 80a. A suction hole is opened at the lower end of the suction nozzle lower end 80b, and negative pressure is supplied to the suction hole when the lower end of the suction nozzle lower end 80b is in contact with the component E, thereby the component E is adsorbed to the suction nozzle lower end 80b. In addition, the suction nozzle 8 includes a buffer spring 80c that applies force to the suction nozzle lower end 80b downward relative to the suction nozzle body 80a. The buffer spring 80c is a compression spring, and the upper end of the buffer spring 80c contacts the suction nozzle body 80a from below, and on the other hand, the lower end of the buffer spring 80c contacts the suction nozzle lower end 80b from above.

[0051] The nozzle body 80a is provided with a hollow portion 81 of a substantially cylindrical shape that opens upward. An engaging portion 82 is provided on the inner wall 811 of the hollow portion 81, and the engaging portion 82 has a pair of engaging holes 821, 821 that are arranged at an angle of 180 degrees from each other in the rotation direction R and are respectively recessed upward. Furthermore, by inserting the engaged portion 52 of the nozzle holding member 5 into the hollow portion 81 of the nozzle 8 from above and engaging the engaging portion 82 of the nozzle 8 with the engaged portion 52 of the nozzle holding member 5, the nozzle 8 can be assembled to the nozzle holding member 5.

[0052] Specifically, the attachment of the suction nozzle 8 is performed by the following actions. In addition, here, the suction nozzle 8 is described as being moved relative to the rotation shaft 41. However, these movements are relative, and the same action is performed even if the rotation shaft 41 is moved relative to the suction nozzle 8.

[0053] from Figure 7 From the "disengaged" state, the hollow portion 81 of the suction nozzle 8 is externally fitted into the suction nozzle holding member 5 from below, while the upper surface of the suction nozzle 8 is relatively pushed up by the pressing plate 46 by overcoming the force of the compression spring 47. Then, the suction nozzle 8 is relatively pushed up until the upper surface of the pressing plate 46 approaches or abuts against the lower end 401 of the rotating shaft 41. As a result, the engaged protrusion 521 of the suction nozzle holding member 5 is embedded in the hollow portion 81 of the suction nozzle 8, and the engaging hole 821 of the suction nozzle 8 is relatively raised to a position higher than the engaged protrusion 521 of the suction nozzle holding member 5. When the suction nozzle 8 is rotated 90 degrees relative to the suction nozzle holding member 5 from this state so that the rotational positions (phases) of the engaging holes 821, 821 and the engaged protrusions 521, 521 are consistent, the engaging holes 821, 821 are opposed to the engaged protrusions 521, 521 from above.

[0054] Next, when the suction nozzle 8 is relatively lowered by the force of the compression spring 47, the engaged protrusions 521, 521 are embedded in and engaged with the engaging holes 821, 821, and the suction nozzle 8 is engaged with the engaged portion 52. In addition, since the compression spring 47 applies force downward to the suction nozzle 8 via the pressing plate 46, the engagement between the engaging hole 821 of the suction nozzle 8 and the engaged protrusion 521 of the suction nozzle holding member 5 is maintained by the force of the compression spring 47. In this way, Figure 7 As shown in the “Engagement” column, when the nozzle 8 is engaged with the nozzle holding member 5 , the air supply path formed inside the rotating shaft 41 communicates with the nozzle 8 , and negative pressure can be supplied to the nozzle 8 through the air supply path.

[0055] Fig.10 FIG. 2 is a partial front view schematically showing the vicinity of the lower end of the inline shaft. Fig.10 As shown, the inline head Hb has a nozzle holding member 7 mounted on the lower end 601 of the inline shaft 61, and the nozzle 8 is assembled to the nozzle holding member 7 in a detachable manner. The nozzle holding member 7 has: a pair of leaf springs 71, 71 protruding downward from the lower end 601 of the inline shaft 61; and a clamping protrusion 72 provided at the lower end of each leaf spring 71. The pair of clamping protrusions 72 protrude from the pair of leaf springs 71 toward the inside and to the side (X direction).

[0056] In contrast, a pair of engaging protrusions 86 are provided on the outer wall 85 of the nozzle body 80a, which protrude laterally (in the X direction) from the upper end of the nozzle body 80a. Each engaging protrusion 86 is composed of a lower portion 861, a middle portion 862, and an upper portion 863, wherein the lower portion 861 is inclined outwardly toward the upper direction, the middle portion 862 is substantially parallel to the Z direction, and the upper portion 863 is inclined inwardly toward the upper direction. A pair of engaging protrusions 86 are provided corresponding to a pair of engaged protrusions 72, and the maximum width W86 of the nozzle body 80a at the portion where the pair of engaging protrusions 86 are provided is wider than the interval between the pair of engaged protrusions 72 when the pair of leaf springs 71 is in a natural state. Furthermore, by inserting a pair of engaging protrusions 86 between a pair of engaged protrusions 72 from below, the nozzle 8 can be assembled to the nozzle holding member 7.

[0057] Specifically, the attachment of the suction nozzle 8 is performed by the following actions. In addition, here, the suction nozzle 8 is described as being moved relative to the inline shaft 61. However, these movements are relative, and the same action is performed even if the inline shaft 61 is moved relative to the suction nozzle 8.

[0058] The elastic force of the pair of leaf springs 71 is overcome so that the pair of engaging protrusions 86 enter from below between the pair of engaged protrusions 72. As these engaging protrusions 86 enter, the pair of engaged protrusions 72 are pushed outward by the upper portion 863 and separated from each other, and pass the middle portion 862 to reach the lower portion 861. The pair of engaged protrusions 72 that have reached the lower portion 861 approach each other due to the elastic force of the leaf springs 71, engage with the lower portion 861 of the engaging protrusions 86, and support the engaging protrusions 86 from below. As a result, the engagement between the engaging protrusion 86 of the nozzle 8 and the engaged protrusion 72 of the nozzle holding member 7 is maintained by the elastic force of the pair of leaf springs 71. In this way, as Fig.10 As shown, when the suction nozzle 8 is engaged with the nozzle holding member 7 , the air supply path formed inside the inline shaft 61 communicates with the suction nozzle 8 , and negative pressure can be supplied to the suction nozzle 8 through the air supply path.

[0059] In the embodiment described above, a pair of engaging protrusions 86 protruding laterally (in the X direction) are provided on the outer wall 85 (outside) of the nozzle body 80a of the nozzle 8 (component nozzle). On the other hand, a pair of leaf springs 71 are installed at the lower end 601 of the inline shaft 61, and a pair of engaged protrusions 72 are provided at the lower end of the pair of leaf springs 71. The pair of engaging protrusions 86 separate the pair of engaged protrusions 72 from each other laterally (in the X direction) by overcoming the elastic force of the pair of leaf springs 71, and enter between the pair of engaged protrusions 72 from below, thereby engaging with the pair of engaged protrusions 72 from above. Furthermore, the engagement between the engaging protrusions 86 of the nozzle 8 and the engaged protrusions 72 of the nozzle holding member 7 is maintained by the elastic force of the pair of leaf springs 71, thereby assembling the nozzle 8 to the inline shaft 61.

[0060] Furthermore, a hollow portion 81 (embedding hole) opening upward and an engaging portion 82 provided on an inner wall 811 (inner side) of the hollow portion 81 are provided in the nozzle body 80a of the nozzle 8. The engaged portion 52 provided at the lower end 401 of the rotating shaft 41 is embedded from above relative to the hollow portion 81, and the engaging portion 82 of the nozzle 8 engages with the engaged portion 52 by contacting the engaged portion 52 of the nozzle holding member 5 embedded in the hollow portion 81 from above. Furthermore, the engaging portion 82 and the engaged portion 52 are maintained by applying force downward to the nozzle 8 by the compression spring 47 (urging member) possessed by the rotating head Ha, thereby assembling the nozzle 8 to the rotating shaft 41.

[0061] In this way, the suction nozzle 8 of the present embodiment can be mounted on either the inline shaft 61 or the rotating shaft 41 by effectively utilizing the outer side (outer wall 85) of the suction nozzle body 80a for mounting on the inline shaft 61 and the inner side (inner wall 811) of the suction nozzle body 80a for mounting on the rotating shaft 41. Therefore, a user who has each type of component mounting machines 1A and 1B, which are inline type and rotating type, does not need to prepare dedicated suction nozzles respectively, and the burden required for preparing suction nozzles can be reduced.

[0062] In addition, the engaging portion 82 has a concave engaging hole 821 (concave portion), and the engaged portion 52 has a convex engaged protrusion 521 (convex portion), and the engaging hole 821 of the engaging portion 82 engages with the engaged protrusion 521 of the engaged portion. In this structure, the suction nozzle 8 can be assembled to the rotating head Ha by a simple structure in which the concave portion and the convex portion are engaged.

[0063] However, the nozzle 8 may be assembled to the rotating shaft 41 without Figure 7 to Figure 9 The illustrated mechanism is realized by the mechanism shown below. Fig.11 is a partial front view showing the vicinity of the lower end of the rotating shaft involved in the modified example, Fig.12 is an upper perspective view showing the vicinity of the lower end of the rotating shaft involved in the modification example, Fig.13 Schematically shows the assembly mechanism of the rotating shaft and the suction nozzle involved in the modified example. In addition, the above example and the modified example here are different in the assembly mechanism of the suction nozzle 8 to the rotating shaft 41, and are common in the assembly mechanism of the suction nozzle 8 to the inline shaft 61. Therefore, the former is described here, and the latter is marked with corresponding numbers and the description is omitted.

[0064] The engaged portion 52 of the nozzle holding member 5 mounted on the lower end 401 of the rotating shaft 41 involved in the modified example has an engaged groove 522. The engaged groove 522 has an introduction vertical portion 522a, a horizontal portion 522b, and a submerged vertical portion 522c. The introduction vertical portion 522a opens downward and extends in parallel with the Z direction, the submerged vertical portion 522c is arranged at a distance from the introduction vertical portion 522a in the rotation direction R and extends in parallel with the Z direction, and the horizontal portion 522b extends in the rotation direction R between the upper end of the introduction vertical portion 522a and the upper end of the submerged vertical portion 522c. In contrast, the engaging portion 82 of the nozzle 8 has an engaging convex portion 822 protruding from the inner wall 811 of the hollow portion 81. Furthermore, the nozzle 8 can be attached to the nozzle holding member 5 by engaging the engaging portion 82 of the nozzle 8 with the engaged portion 52 of the nozzle holding member 5 while inserting the engaged portion 52 of the nozzle holding member 5 into the hollow portion 81 from above.

[0065] Specifically, the attachment of the suction nozzle 8 is performed by the following actions. In addition, here, the suction nozzle 8 is described as being moved relative to the rotation shaft 41. However, these movements are relative, and the same action is performed even if the rotation shaft 41 is moved relative to the suction nozzle 8.

[0066] The engaging protrusion 822 of the suction nozzle 8 is placed opposite to the introduction vertical portion 522a of the engaged groove 522 of the suction nozzle holding member 5 from below, and the engaging protrusion 822 of the suction nozzle 8 is inserted into the introduction vertical portion 522a ( Fig.13 The engaging protrusion 822 is moved into the introduction vertical portion 522a while overcoming the force of the compression spring 47 which pushes the suction nozzle 8 downward via the pressing plate 46 to raise the suction nozzle 8 relative to the suction nozzle holding member 5. When the engaging protrusion 822 reaches the upper end of the introduction vertical portion 522a, the suction nozzle 8 is rotated in the rotation direction R, so that the engaging protrusion 822 moves from the introduction vertical portion 522a to the immersed vertical portion 522c along the horizontal portion 522b ( Fig.13 column in the Rotation section).

[0067] When the engaging protrusion 822 reaches the upper end of the immersed vertical portion 522c, and the suction nozzle 8 is lowered relative to the suction nozzle holding member 5 due to the force of the compression spring 47, the engaging protrusion 822 is immersed in the immersed vertical portion 522c, and the engaging protrusion 822 of the suction nozzle 8 is engaged with the engaged groove 522 of the suction nozzle holding member 5. In addition, since the compression spring 47 applies force downward to the suction nozzle 8 via the pressing plate 46, the engagement between the engaging protrusion 822 of the suction nozzle 8 and the engaged groove 522 of the suction nozzle holding member 5 is maintained by the force of the compression spring 47. In this way, Fig.13 As shown in the “immersion” column, when the suction nozzle 8 is engaged with the suction nozzle holding member 5 , the air supply path formed inside the rotating shaft 41 is communicated with the suction nozzle 8 , and negative pressure can be supplied to the suction nozzle 8 through the air supply path.

[0068] In this way, the suction nozzle 8 involved in the modified example can be mounted on either the inline shaft 61 or the rotating shaft 41 by effectively utilizing the outer side (outer wall 85) of the suction nozzle body 80a for mounting on the inline shaft 61 and the inner side (inner wall 811) of the suction nozzle body 80a for mounting on the rotating shaft 41. Therefore, users who have each type of component mounting machines 1A and 1B, which are inline type and rotary type, do not need to prepare dedicated suction nozzles respectively, and the burden required for preparing suction nozzles can be reduced.

[0069] In addition, the engaging portion 82 has an engaging convex portion 822 (convex portion), and the engaged portion 52 has an engaged groove 522 (concave portion), and the engaging convex portion 822 of the engaging portion 82 is engaged with the engaged groove 522 of the engaged portion 52. In this structure, the suction nozzle 8 can be assembled to the rotating head Ha by a simple structure in which the concave portion and the convex portion are engaged.

[0070] As described above, in the present embodiment, the component mounting machine 1A is equivalent to an example of the “rotational component mounting machine” of the present invention, the component mounting machine 1B is equivalent to an example of the “in-line component mounting machine” of the present invention, the rotating shaft 41 is equivalent to an example of the “rotational shaft” of the present invention, the lower end 401 is equivalent to an example of the “lower end of the rotating shaft” of the present invention, the compression spring 47 is equivalent to an example of the “biasing member” of the present invention, the engaged portion 52 is equivalent to an example of the “engaged portion” of the present invention, the engaged protrusion 521 is equivalent to an example of the “convex portion” of the present invention, the engaged groove 522 is equivalent to an example of the “recessed portion” of the present invention, the in-line shaft 61 is equivalent to an example of the “in-line shaft” of the present invention, the lower end 601 is equivalent to an example of the “lower end of the in-line shaft” of the present invention, the leaf spring 71 is equivalent to an example of the “elastic member” of the present invention, the engaged protrusion 72 is equivalent to the “engaged portion” of the present invention, The suction nozzle 8 is equivalent to an example of a “component suction nozzle” of the present invention, the suction nozzle body 80a is equivalent to an example of a “suction nozzle body” of the present invention, the suction nozzle lower end portion 80b is equivalent to an example of a “suction nozzle lower end portion” of the present invention, the buffer spring 80c is equivalent to an example of a “buffer member” of the present invention, the hollow portion 81 is equivalent to an example of an “embedded hole” of the present invention, the snap-fitting portion 82 is equivalent to an example of a “snapping portion” of the present invention, the snap-fitting hole 821 is equivalent to an example of a “recess” of the present invention, the snap-fitting convex portion 822 is equivalent to an example of a “convex portion” of the present invention, the snap-fitting protrusion 86 is equivalent to an example of a “snapping protrusion” of the present invention, the element E is equivalent to an example of an “element” of the present invention, the rotating head Ha is equivalent to an example of a “rotating head” of the present invention, the in-line head Hb is equivalent to an example of an “in-line head” of the present invention, and the component mounting system MS is equivalent to an example of a “component mounting system” of the present invention.

[0071] In addition, the present invention is not limited to the above-mentioned embodiment, and various modifications can be made to the above-mentioned embodiment without departing from the gist thereof. For example, the number of the engaged protrusions 521 in the engaged portion 52 and the number of the engaging holes 821 in the engaging portion 82 are not limited to the above-mentioned two.

[0072] The number of the leaf spring 71, the engaged protrusion 72, and the engaging protrusion 86 is not limited to the above-mentioned pair, and two pairs of each may be provided to hold the suction nozzle 8 from four directions.

[0073] In addition, the number of rotating shafts 41 in the rotating head Ha and the number of inline shafts 61 in the inline head Hb may be appropriately changed. In addition, in the above example, in the inline head Hb, a plurality of inline shafts 61 are arranged in a row, but the row of the main shafts 51 is not limited to one row, and may be a plurality of rows.

[0074] Description of symbols

[0075] 1…Component mounting machine

[0076] 1A...Rotary type component mounting machine

[0077] 1B…Inline type component mounting machine

[0078] 41…Rotation axis

[0079] 401…Lower end of the rotating shaft

[0080] 47…Compression spring (force applying member)

[0081] 52…engaged portion

[0082] 521…engaged protrusion (convex portion)

[0083] 522 ... engaged groove (recess)

[0084] 61…Inline shaft

[0085] 601…lower end of inline shaft

[0086] 71…Leaf spring (elastic member)

[0087] 72…Engaged protrusion

[0088] 8…Suction nozzle (component suction nozzle)

[0089] 80a…Nozzle body

[0090] 80b…Lower end of nozzle

[0091] 80c...buffer spring (buffer member)

[0092] 81…Hollow part (embedded hole)

[0093] 82…Engagement part

[0094] 821… Engagement hole (recessed part)

[0095] 822…Engaging convex part (convex part)

[0096] 86…Engagement protrusion (engagement protrusion)

[0097] E…Component

[0098] Ha…Swivel Head

[0099] Hb…Inline Head

[0100] MS...Component Mounting System

Claims

1. A component suction nozzle, comprising: A nozzle body, on which an embedding hole opening upward is provided; A clamping portion, arranged on the inner side of the embedding hole; A pair of engaging protrusions are arranged on the outside of the nozzle body and protrude outward; The lower end of the nozzle is movably mounted up and down relative to the nozzle body and contacts the component when the component is adsorbed; and The buffer member applies force downward to the lower end of the nozzle relative to the nozzle body. The engaged portion provided at the lower end of the rotating shaft of the rotating head having a plurality of rotating shafts arranged in a circumferential shape is engaged with the engaging hole from above. The engaging portion engages with the engaged portion by contacting the engaged portion embedded in the embedding hole from above. The engagement between the engaging portion and the engaged portion is maintained by applying a force downward to the nozzle body by the applying member of the rotary head. The pair of engaging protrusions are engaged with the pair of engaging protrusions from above by allowing a pair of engaged protrusions respectively provided on a pair of elastic members to overcome the elastic force of the elastic members and separate from each other while entering between the pair of engaged protrusions from below, wherein the pair of elastic members are provided at the lower ends of the inline shafts of the inline head having a plurality of inline shafts arranged in a straight line. The engagement between the engaging protrusion and the engaged protrusion is maintained by the elastic force of the pair of elastic members.

2. The component suction nozzle according to claim 1, wherein: The engaging portion has a recessed portion, and the engaged portion has a convex portion, and the recessed portion of the engaging portion engages with the convex portion of the engaged portion.

3. The component suction nozzle according to claim 1, wherein: The engaging portion has a convex portion, the engaged portion has a concave portion, and the convex portion of the engaging portion engages with the concave portion of the engaged portion.

4. A component mounting system comprising: A rotary component mounting machine has a rotary head having a plurality of rotating shafts arranged in a circumferential shape, and uses a component suction nozzle mounted on the lower end of the rotating shaft to suck the component and mount the component on the substrate; and The in-line component mounting machine has an in-line head having a plurality of in-line axes arranged in a straight line, and uses a component suction nozzle mounted on the lower end of the in-line axis to absorb the component and mount the component on the substrate. The component suction nozzle comprises: a nozzle body, on which an embedding hole opening upward is provided; a snap-fitting portion, which is arranged on the inner side of the embedding hole; a pair of snap-fitting protrusions, which are arranged on the outer side of the nozzle body and protrude outward; a lower end portion of the nozzle, which is movably mounted up and down relative to the nozzle body and contacts the component when the component is adsorbed; and a buffer member, which applies force downward to the lower end portion of the nozzle relative to the nozzle body. The engaged portion provided at the lower end of the rotating shaft is engaged with the engaging hole from above. The engaging portion engages with the engaged portion by contacting the engaged portion embedded in the embedding hole from above. The engagement between the engaging portion and the engaged portion is maintained by applying a force downward to the nozzle body by the applying member of the rotary head. The pair of engaging protrusions are engaged with the pair of engaging protrusions from above by allowing a pair of engaged protrusions respectively provided on a pair of elastic members to overcome the elastic force of the elastic members and separate from each other while entering between the pair of engaged protrusions from below. The pair of elastic members are provided at the lower ends of the in-line shafts. The engagement between the engaging protrusion and the engaged protrusion is maintained by the elastic force of the pair of elastic members.

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