JP6067214B2 - Suction nozzle - Google Patents

Description

  The present application relates to a suction nozzle that is attached to a mounting head included in a component mounting apparatus and sucks and holds the component.

  The component mounting device holds components supplied by the component supply device and mounts the components on the circuit board transported to the mounting position by the transport device. A suction nozzle for sucking and holding the component is attached to the mounting head which is a main part of the component mounting apparatus. The suction nozzle is configured so that a large force does not act on the component or the circuit board when the component is sucked or mounted on the circuit board, in other words, it does not give a large impact to the component. Is done. Specifically, for example, as described in the following patent document, a nozzle body in which one end of an intake passage opens at the tip, a nozzle body holder that slidably holds the nozzle body, and a nozzle body And an elastic body that urges the nozzle body in the direction of separating from the nozzle body holding body.

  A conventional general suction nozzle is configured such that when suction is performed to suck parts, a suction force due to the suction acts on the nozzle body. Therefore, the elastic body is preliminarily provided with a set load, which is a force with a magnitude that resists the suction force, so that the nozzle body does not move due to the suction force. As a result, the conventional suction nozzle has a problem that a relatively large force acts on the component due to the set load. In order to cope with this, the suction nozzle described in the above-mentioned Patent Document 1 has a nozzle body accommodated in a hole formed in the nozzle body holding body, and from the base end surface of the nozzle body inside the hole of the nozzle body holding body. A space defined on the back side is blocked from the intake passage, and an elastic body is disposed in the space.

JP 2002-239964 A

  However, the suction nozzle having such a configuration has a narrow space in which the elastic body is accommodated, and the elastic body is limited to one that can be disposed in the narrow space. For example, a suction spring having a small spring constant is employed. There are problems such as being unable to do so. That is, it is difficult to say that the suction nozzle described in Patent Document 1 can sufficiently reduce the impact applied to the components. This invention is made | formed in view of such a situation, and makes it a subject to provide the suction nozzle which does not give an impact to components.

In order to solve the above-mentioned problems, the suction nozzle of the present invention has a nozzle body holding body that is slidably held in a state where the nozzle body is fitted inside the cylinder portion and the tip portion of the nozzle body projects. The intake passage formed in the nozzle body is opened on the side surface of the nozzle body so as to face the inner peripheral surface of the cylinder portion, and the nozzle body holder is (a) one end of the cylinder portion. An intake communication passage that communicates with the intake passage of the nozzle body and the intake passage provided in the mounting head, and (b) the space on the proximal end side of the nozzle body inside the cylinder portion is defined as the atmosphere. And an elastic body is disposed on the outside of the nozzle body holding body .
Roh nozzle body holding body, and the inner cylindrical member as the tubular portion, the inner tubular member is configured to include an outer cylinder member fitted therein,
The outer tubular member, the atmosphere communication hole connected with the atmosphere is formed through from the inside to the outside, and,
The inner cylinder member is formed with (A) a first through hole penetrating from the inside to the outside so as to be connected to the intake passage of the nozzle body, and a first groove extending from the first through hole on the outer peripheral surface of the inner cylinder member (B) a second through-hole penetrating outward from the space on the base end side of the nozzle body is formed, and from the second through-hole to the atmosphere communication hole of the outer cylinder member on the outer peripheral surface of the inner cylinder member A second groove extending is formed ;
By fitting the inner cylinder member and the outer cylinder member, an intake communication path is formed by the first through hole and the first groove, and an intake communication path is formed by the second through hole, the second groove, and the atmosphere communication hole. It is formed .

In the suction nozzle of the present invention, the space behind the base end surface of the nozzle body inside the cylinder portion of the nozzle body holding body communicates with the atmosphere and is sucked from the side surface of the nozzle body, so the nozzle body enters the cylinder portion. No set load is required because no force is applied. Furthermore, since the elastic body is arranged outside the nozzle body holding body, the suction nozzle of the present invention has a high degree of freedom in designing the elastic body. For example, an elastic body having a small spring constant can be adopted. Is possible. Therefore, the suction nozzle of the present invention has both of these two advantages, so that not only the force applied to the component due to the set load when contacting the component, but also the nozzle main body at the time of component suction and component mounting. It is possible to reduce the force applied to the component due to the contraction of the elastic body accompanying the movement, and it is possible to reduce the force applied to the component in the entire component suction operation and the entire component mounting operation. Further, the suction nozzle of the present invention can be easily formed inside the nozzle body holding body by using the grooves formed in the outer peripheral surface of the inner cylinder member for both the intake communication passage and the atmospheric communication passage. It becomes possible.

Aspects of the Invention

In the following, some aspects of the invention that can be claimed in the present application (hereinafter sometimes referred to as “claimable invention”) will be exemplified and described. As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is merely for the purpose of facilitating the understanding of the claimable inventions, and is not intended to limit the combinations of the constituent elements constituting those inventions to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiments, etc., and as long as the interpretation is followed, another aspect is added to the form of each section. In addition, an aspect in which some constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention. In each of the following items, the item (1) and the item (4) are combined and the structure for forming the air communication passage and the intake communication passage is added and corresponds to claim 1 .

(1) A suction nozzle that is attached to a mounting head of a component mounting device and that sucks and holds the component.
A nozzle body in which the tip of its own is brought into contact with the component when adsorbing the component and an intake passage having one end opened at the tip is formed inside;
A nozzle body holding body that has a cylinder portion, the nozzle body is fitted inside the cylinder portion, and the nozzle body is slidably held in a state in which a tip portion of the nozzle body protrudes;
An elastic body that urges the nozzle body in a direction to protrude from the nozzle body holding body,
The intake passage formed in the nozzle body is opened on the side surface of the nozzle body so that the other end faces the inner peripheral surface of the cylindrical portion,
The nozzle body holding body, (a) an intake communication path that opens at one end on an inner peripheral surface of the cylindrical portion and communicates an intake path of the nozzle body and an intake path provided in the mounting head; and (b) ) Having an atmosphere communication passage communicating with the atmosphere in the base end side of the nozzle body inside the cylinder portion;
The suction nozzle, wherein the elastic body is disposed outside the nozzle body holding body.

  To put it flatly, the suction nozzle described in this section is configured to be contractible, and is premised on a configuration that reduces impact during component suction and component mounting. As described above, the suction nozzle having such a configuration has been studied in the past so that a large impact is not applied to the component by the elastic force of the elastic body. In order to reduce the impact, the structure has two characteristics.

  First, the suction nozzle of this section is a space deeper than the base end surface of the nozzle body inside the tube portion of the nozzle body holder (in other words, the inner peripheral surface of the nozzle portion of the nozzle body holder and the base end surface of the nozzle body) (Hereinafter, sometimes referred to as “inner cylinder space”) communicates with the atmosphere and is structured to be sucked from the side surface of the nozzle body. With this structure, the suction nozzle of this section can reduce the set load of the elastic body because the force in the direction of entering the cylinder portion does not act on the nozzle body when inhaling.

  Further, the suction nozzle of this section is characterized in that the elastic body is disposed outside the nozzle body holding body. With this structure, the suction nozzle of this section has a higher degree of freedom in designing the elastic body than in the case where the elastic body is disposed inside the cylindrical portion of the nozzle body holding body. Specifically, for example, when a coil spring is used for the elastic body, the length of the coil spring is increased as compared with the case where the elastic body is disposed inside the cylindrical portion of the nozzle body holder. It is possible to increase the diameter, increase the number of turns, and the like. As a result, the suction nozzle of this section can reduce the spring constant of the elastic body.

  Since the suction nozzle described in this section has both of the above two structural features, it is caused by the set load of the elastic body when it comes into contact with the component when it is sucked and when the component is mounted. Thus, not only can the force applied to the component be reduced, but also the force applied to the component can be reduced due to the contraction of the elastic body accompanying the contraction of the nozzle. In other words, the suction nozzle of this section can minimize the force applied to the component to be held and does not give an impact to the component.

  The “nozzle body” described in this section can employ, for example, a cylindrical member having one end (base end) closed and a hole provided on the side surface. When such a cylindrical member is adopted, the other end (tip) is brought into contact with the part, and the inside and side holes of the other end function as an intake passage. Further, the “nozzle body holding body” described in this section has a cylindrical portion into which the nozzle body is fitted. The cylinder part is closed at the part opposite to the side from which the nozzle body protrudes, and the suction nozzle of this section communicates with the atmosphere through the atmosphere in the cylinder part through the atmosphere communication passage. It can be set as the atmospheric | air pressure chamber. That is, the cylinder part of the nozzle body holder can be considered as a hole into which the nozzle body is inserted.

  The end portion on the mounting head side of the “intake communication path” of the nozzle body holder may be connected to the intake path provided on the mounting head. For example, the suction nozzle may be attached so that the end of the nozzle body holder opposite to the side from which the nozzle body projects is fitted into the opening of the intake passage of the mounting head. In such a case, the end of the intake communication path on the mounting head side can be configured to open to the end of the nozzle body holding body opposite to the side from which the nozzle body projects.

  The type, shape, etc. of the “elastic body” described in this section are not particularly limited as long as it can be disposed outside the nozzle body holding body. The elastic body can be disposed so that one end is held by a portion of the nozzle body protruding from the nozzle body holding body and the other end is held by the nozzle body holding body.

(2) The nozzle body has a flange portion protruding radially outward at a portion protruding from the nozzle body holding body,
The suction nozzle according to (1), wherein the elastic body is disposed between a flange portion of the nozzle body and the nozzle body holding body.

  In the aspect described in this section, the support position of the elastic body in the nozzle body is embodied.

(3) The elastic body is
A coil disposed around the cylindrical portion of the nozzle body holder, one end of which is supported by the nozzle body holder, and the other end supported by the flange portion of the nozzle body The suction nozzle according to item (2), which is a spring.

  In the embodiment described in this section, a coil spring is adopted as the elastic body. Since the suction nozzle of the aspect of this term can arrange | position the cylinder part of an elastic body, a nozzle main body, and a nozzle main body holding body coaxially, it can be set as a comparatively compact structure.

(4) The nozzle body holder is
An inner cylinder member as the cylinder portion, and an outer cylinder member in which the inner cylinder member is fitted,
The inner cylinder member is formed with a through-hole penetrating from the inside to the outside so as to be connected to the intake passage of the nozzle body, and at least of the outer circumferential surface of the inner cylinder member and the inner circumferential surface of the outer cylinder member On one side, a groove extending from the through hole is formed,
The suction nozzle according to any one of (1) to (3), wherein the through hole and the groove function as the intake communication passage.

  In the aspect described in this section, the configuration of the nozzle main body holding body is realized, and the structure for forming the intake communication passage in the nozzle main body holding body is realized. According to the aspect of this section, the intake communication passage can be easily formed inside the nozzle body holding body.

It is a perspective view which shows the electronic component mounting machine comprised including the suction nozzle which is an Example of claimable invention. It is a side view which expands and shows a part of mounting | wearing head shown in FIG. It is a perspective view which expands and shows the suction nozzle shown in FIG. FIG. 4 is a cross-sectional view of the suction nozzle of FIG. 3 (A-A cross section in FIG. 3). FIG. 5 is a cross-sectional view of the suction nozzle shown in FIG. It is a side view of the inner sleeve which comprises a nozzle main body holding body. It is sectional drawing (CC cross section in FIG. 6) of the inner sleeve which comprises a nozzle main body holding body. It is the figure which showed the relationship between the relative operation amount of a nozzle main body and a nozzle main body holding body, and the load added to the components P. FIG.

  Hereinafter, representative embodiments of the claimable invention will be described in detail with reference to the drawings. In addition to the following examples, the claimable invention is implemented in various modes including various modifications and improvements based on the knowledge of those skilled in the art, including the mode described in the above [Mode of Invention]. can do. Moreover, it is also possible to constitute the modification of the following Example using the technical matter described in the description of each item of [Aspect of the Invention].

<Configuration of electronic component mounting machine>
As shown in FIG. 1, the electronic component mounting machine 20 including the suction nozzle 10 of the embodiment is roughly divided into (a) a base 22 and (b) four posts erected on the base 22. A frame 26 having (pillars) 24 (the whole is not shown in the figure); and (c) a circuit board S (hereinafter simply referred to as “substrate S”) disposed on the base 22. And (d) a conveyor device 28 for fixing the substrate at a predetermined position, and (d) a line arranged in a line on each of the front side and the rear side on the base 22 with the conveyor device 28 interposed therebetween. A plurality of component feeders 30 (only a portion of the front row is shown), each functioning as a feeder-type component supply device, and (e) the plurality of components supported by the frame 26 Supplied from each of the feeders 30 That the electronic component P (hereinafter, simply referred to as "component P") is configured to include a component mounting apparatus 32 for mounting on a fixed substrate S by the conveyor device 28. Incidentally, in the following description, as indicated by arrows in the drawing, the horizontal direction of the mounting machine may be referred to as the X direction, the front-rear direction as the Y direction, and the vertical direction as the Z direction.

  The component mounting device 32 includes a mounting head 40 for holding the component P and a head moving device 42 for moving the mounting head 40. The head moving device 42 is an XY robot type moving device, and moves the mounting head 40 to an arbitrary position along a horizontal plane. The mounting head 40 is an index-type head and includes eight suction nozzles 10 which will be described in detail later. Each of the eight suction nozzles 10 sucks and holds the component by supplying negative pressure (lowering the pressure below atmospheric pressure), and releases the sucked and held component from itself by stopping the supply of negative pressure. As shown in FIG. 2, each of the eight suction nozzles 10 is held by a nozzle holder 50 included in the mounting head 40, and the nozzle holder 50 corresponding to one suction nozzle 10 at a specific position is The suction nozzle 10 is moved in the Z direction by being lifted and lowered by a nozzle lifting mechanism (not shown) of the mounting head 40.

  That is, when the component P is held by the component mounting device 32, the mounting head 40 is first positioned above the component feeder 30 by the head moving device 42. Then, the suction nozzle 10 at a specific position among the eight suction nozzles 10 is lowered by the nozzle lifting mechanism, negative pressure is supplied to the suction nozzle 10, and the component P supplied from the component feeder 30 is suctioned. Retained. By repeating this suction holding operation for each suction nozzle 10 in sequence, the component P is sucked and held by each of the eight suction nozzles 10.

  Next, when the component P is mounted on the mounting head 40 by the component mounting device 32, the mounting head 40 moves the component P on the substrate S fixed by the conveyor device 28 by the head moving device 42 above the mounting position. Be positioned. Then, the suction nozzle 10 at the specific position is lowered by the nozzle lifting mechanism, the supply of negative pressure to the suction nozzle 10 is cut off, and the component is mounted at the mounting position. By repeating this mounting operation for each suction nozzle 10 in sequence, the component P sucked and held by each of the eight suction nozzles 10 is mounted on the substrate S.

<Configuration of suction nozzle>
Next, the suction nozzle 10 will be described in detail with reference to FIGS. FIG. 3 is a perspective view of the suction nozzle 10, and FIGS. 4 and 5 are cross-sectional views of the suction nozzle 10 shown from different viewpoints. 4 is an AA cross section in FIG. 3, and FIG. 5 is a BB cross section in FIG.

  The suction nozzle 10 is attached to the lower end of a nozzle holder 50 provided in the mounting head 40 and is detachable. The nozzle holder 50 is configured to be rotated around an axis by a nozzle rotation mechanism (not shown) of the mounting head 40 for adjusting the mounting position. So that the relative rotation is impossible. That is, the suction nozzle 10 is configured to rotate integrally with the nozzle holder 50. The nozzle holder 50 is generally formed in a cylindrical shape, and the inside thereof is a passage for supplying negative pressure, that is, an intake passage 52 for sucking air.

  The suction nozzle 10 includes a nozzle main body 60 that is brought into contact with the component P at the time of component suction, a sleeve 62 as a nozzle main body holding the nozzle main body 60 in a state in which the lower end portion thereof protrudes, and the nozzle main body 60. And a compression coil spring 64 as an elastic body that urges the sleeve in a direction in which it protrudes from the sleeve 62.

  The sleeve 62 is formed by fitting an inner sleeve 70 that is a generally cylindrical inner cylinder member and an outer sleeve 72 that is an outer cylinder member. The outer sleeve 72 is provided with a disk-shaped disk part 74 formed so as to protrude radially outward from the outer peripheral surface of the outer sleeve 72. The disk part 74 is used for imaging the component P that is sucked and held. It functions as the part that forms the background. On the other hand, the nozzle body 60 includes a cylindrical shaft member 80 and a nozzle tip member 82 fitted and fixed from the lower end of the shaft member 80. The nozzle tip member 82 has a cylindrical shaft portion 84 fitted into the lower end of the shaft member 80, and a flange portion 86 formed so as to protrude radially outward from the outer peripheral surface of the shaft portion 84. ing. Incidentally, an annular rubber 88 is fixed to the lower end of the nozzle tip member 82 so that the part P is brought into soft contact.

  On the upper end side of the sleeve 62, a pair of through holes 90 are formed through the inner sleeve 70 and the outer sleeve 72 in a direction perpendicular to the axis of the sleeve 62. On the other hand, on the upper end side of the nozzle body 60, a pair of long holes 92 extending in parallel with the axis thereof is formed at the upper end of the shaft member 80. The roller needle 94 is inserted into the sleeve 62, more specifically, the inner sleeve 70, while the shaft member 80 of the nozzle body 60 is inserted into the sleeve 62 while inserting the elongated hole 92 of the nozzle body 60. It is press-fitted into a pair of through holes 90 formed in 62. That is, with such a structure, the nozzle body 60 is held by the sleeve 62 and is slidable in the axial direction with respect to the sleeve 62.

  Further, another roller needle 96 is press-fitted into the nozzle body 60 and the sleeve 62 on the lower side of the roller needle 94. The roller needle 96 is press-fitted into a through hole 98 provided in the nozzle body 60, and a holding member fixed to an elongated hole 100 formed in the sleeve 62 and an outer peripheral side end of the disk portion 74 of the outer sleeve 72. 102, the roller needle 96 is held in a state in which the roller needle 96 is allowed to move in the vertical direction and is not allowed to rotate. That is, the suction nozzle 10 is reliably prohibited from rotating by the roller needle 96 with respect to the sleeve 62 of the nozzle body 60.

  The coil spring 64 is disposed between the disk portion 74 of the outer sleeve 72 and the flange portion 86 of the nozzle tip member 82 so as to surround the sleeve 62, and the flange portion 86 is a pedestal of the coil spring 64. Is configured to function as That is, the coil spring 64 is configured to urge the nozzle body 60 in a direction in which the nozzle body 60 protrudes with respect to the movement in the direction of entering the sleeve 62 of the nozzle body 60.

  Next, the intake passage formed in the intake nozzle 10 will be described. First, the shaft member 80 of the nozzle body 60 is provided with a wall portion 110 at an intermediate portion thereof, and the interior is partitioned into a distal end side (lower side) space and a proximal end side (upper side) space. ing. The shaft member 80 is provided with a pair of through holes 112 that are connected to the space on the tip end side thereof and open to the side surface so as to face the inner peripheral surface of the inner sleeve 70. The space on the tip end side of the shaft member 80 is continuous with the inside of the shaft portion 84 of the nozzle tip member 82. That is, the intake passage 114 of the nozzle body 60 is formed by the inside of the shaft portion 84 of the nozzle tip member 82, the space on the tip side of the shaft member 80, and the pair of through holes 112 of the shaft member 80.

  On the other hand, the sleeve 62 is constituted by the inner sleeve 70 and the outer sleeve 72 as described above, and the intake passage 114 that communicates the intake passage 114 of the nozzle body 60 with the intake passage 52 formed in the nozzle holder 50 therebetween. A communication path 120 is formed. FIG. 6 shows a side view of the inner sleeve 70, and FIG. 7 shows a cross-sectional view of the inner sleeve 70 (C-C cross section in FIG. 6). The inner sleeve 70 is formed with a pair of through holes 122 penetrating from the inner peripheral surface to the outer peripheral surface, and a pair of grooves 124 extending upward from each of the pair of through holes 122 are formed on the outer peripheral surface. Is formed. Then, as the inner sleeve 70 is fitted into the outer sleeve 72, a pair of passages are formed by the pair of grooves 124 of the inner sleeve 70 and the inner peripheral surface of the outer sleeve 72, as shown in FIG. The intake communication passage 120 is formed by the pair of passages and the pair of through holes 122.

  More specifically, the upper end of the sleeve 62 is closed by the stopper 130 at the upper end of the inner sleeve 70. That is, on the inner side of the sleeve 62, the air chamber 132 is formed on the back side from the base end surface of the shaft member 80 by the sleeve 62, the plug 130, and the shaft member 80. The sleeve 62 is formed with an air communication path 134 that communicates the air chamber 132 with the atmosphere. Specifically, the inner sleeve 70 is formed with a pair of through holes 136 penetrating from the inner peripheral surface to the outer peripheral surface on the lower side of the plug 130, and corresponding to each of the pair of through holes 136. A pair of grooves 138 extending from each of them to the aforementioned long hole 100 is formed. That is, as shown in FIG. 4, a pair of passages are formed by the pair of grooves 138 formed in the inner sleeve 70 and the inner peripheral surface of the outer sleeve 72, and the pair of passages and the pair of penetrations are formed. An air communication path 134 is formed by the hole 136 and the pair of long holes 100. That is, the air chamber 132 is an atmospheric pressure chamber.

<Operation when picking up and installing parts>
Next, an operation when sucking the component P and an operation when mounting the component P on the substrate S will be described. When sucking the component P, first, the nozzle holder 50 corresponding to the suction nozzle 10 at a specific position is lowered by the nozzle lifting mechanism. Then, suction (supply of negative pressure) is started immediately before the tip of the suction nozzle 10 comes into contact with the component P, the tip of the suction nozzle 10 is brought into contact with the component P, and the component P is sucked and held. At that time, in the suction nozzle 10, the nozzle body 60 enters the sleeve 62 while contracting the coil spring 64, and the impact applied to the component P is alleviated. In the suction nozzle 10, the air chamber 132 communicates with the atmosphere on the back side from the base end surface of the nozzle body 60 inside the sleeve 62, and intake is performed from the side surface of the nozzle body 60. For this reason, even if the volume of the air chamber 132 is reduced, the force that causes the nozzle body 60 to protrude from the sleeve 62 does not act, and the force that causes the nozzle body 60 to enter the sleeve 62 by intake air. Does not work.

  Subsequently, the mounting head 40 that sucks and holds the component P is moved above the camera 150, and imaging of the component P is performed. Based on the imaging data, the positional deviation and the angular deviation of the component P are grasped, and based on the deviation, the nozzle holder 50 is rotated around the axis line by the nozzle rotating mechanism and above the mounting position of the substrate S. Moved. Then, the nozzle holder 50 is lowered by the nozzle lifting mechanism, and the component P held by the suction nozzle 10 is brought into contact with the substrate S. Next, when the nozzle holder 50 is further lowered, the sleeve 62 is lowered with respect to the nozzle body 60, a load depending on the elastic force of the coil spring 64 is applied to the component P, and the component P is mounted on the substrate S. Is done.

<Effect of this suction nozzle>
As described above, the suction nozzle 10 has the atmospheric pressure chamber 132 formed on the back side of the base end surface of the nozzle body 60 inside the sleeve 62, and intake is performed from the side surface of the nozzle body 60. Therefore, in this suction nozzle 10, no upward force is applied to the nozzle body 60 during intake. Incidentally, in the conventional suction nozzle in which the intake passage is configured to open at the base end of the nozzle body, an upward force is applied to the nozzle body 60 by the intake air, so that the nozzle body does not move upward by the force. Further, a set load is applied to the elastic body disposed between the nozzle body and the sleeve so as to generate a force in a direction in which the nozzle body protrudes. On the other hand, in the suction nozzle 10, since no upward force is applied to the nozzle body 60 during intake, almost no set load is applied to the coil spring 64. Therefore, as shown in FIG. 8, when the suction nozzle 10 comes into contact with the component P when the component P is sucked, or when the component P comes into contact with the substrate S when the component P is mounted, as shown in FIG. It is possible to almost eliminate the impact caused by the set load of the elastic body.

  Further, the suction nozzle 10 is arranged outside the sleeve 62 so as to surround it. For example, the coil spring is compared with the suction nozzle disposed in the air chamber 132 inside the sleeve 62. The suction nozzle of the comparative example has many restrictions because the coil spring is accommodated in the relatively narrow air chamber 132 in the design stage of the coil spring. On the other hand, since the suction nozzle 10 is disposed outside the sleeve 62, the degree of freedom is relatively high when the coil spring 64 is designed. Specifically, for example, the present suction nozzle 10 can increase the outer diameter of the coil spring, and can increase the length of the coil spring, compared with the suction nozzle of the comparative example described above. The number of turns of the spring can be increased. As a result, the coil spring 64 provided in the suction nozzle 10 has a relatively small spring constant. As shown in FIG. 8, the relative relationship between the nozzle body 60 and the sleeve 62 at the time of component suction and mounting is shown. The increase in load with respect to the amount of movement is reduced. That is, the suction nozzle 10 is configured so that a large impact is not applied to the component P because the load applied to the component P does not increase suddenly during component suction and mounting. In addition, it becomes easy to fit the entire sliding range of the nozzle body 60 within the extension range of the coil spring having a small spring constant, and the sliding of the nozzle body 60 becomes smooth in the entire sliding range. .

  As described above, the suction nozzle 10 is mounted not only when it comes into contact with the component P or when the component is brought into contact with the substrate S, but also with the entire operation until the suction holding of the component P is completed, and mounting the component P on the substrate S. In the entire operation up to this point, the force applied to the component P can be reduced and the component P can be protected.

  DESCRIPTION OF SYMBOLS 10: Adsorption nozzle 20: Electronic component mounting machine 32: Component mounting apparatus 40: Mounting head 50: Nozzle holder 52: Intake passage 60: Nozzle main body 62: Sleeve [nozzle main body holding body] 64: Compression coil spring [elastic body] 70 : Inner sleeve [inner cylinder member, cylinder part] 72: Outer sleeve [outer cylinder member] 80: Shaft member 82: Nozzle tip member 100: Elongated hole [atmospheric communication path] 112: Through hole [intake path] 114: Intake path 120: Intake communication passage 122: Through hole [intake communication passage] 124: Groove [intake communication passage] 132: Air chamber 134: Atmosphere communication passage 136: Through hole [atmosphere communication passage] 138: Groove [atmosphere communication passage] S: Circuit board P: Electronic component

Claims (1)

A suction nozzle that is attached to the mounting head of the component mounting device and sucks and holds the component,
A nozzle body in which the tip of its own is brought into contact with the component when adsorbing the component and an intake passage having one end opened at the tip is formed inside;
A nozzle body holding body that has a cylinder portion, the nozzle body is fitted inside the cylinder portion, and the nozzle body is slidably held in a state in which a tip portion of the nozzle body protrudes;
An elastic body that urges the nozzle body in a direction to protrude from the nozzle body holding body,
The intake passage formed in the nozzle body is opened on the side surface of the nozzle body so that the other end faces the inner peripheral surface of the cylindrical portion,
The nozzle body holding body, (a) an intake communication path that opens at one end on an inner peripheral surface of the cylindrical portion and communicates an intake path of the nozzle body and an intake path provided in the mounting head; and (b) ) Having an atmosphere communication passage communicating with the atmosphere in the base end side of the nozzle body inside the cylinder portion;
The elastic body is disposed outside the nozzle body holding body, and
The nozzle body holding body includes an inner cylinder member as the cylinder portion and an outer cylinder member in which the inner cylinder member is fitted,
Before Kigai tubular member, the atmosphere communication hole connected with the atmosphere is formed through from the inside to the outside, and,
In the inner cylinder member,
(A) A first through hole penetrating from the inside to the outside is formed so as to connect to the intake passage of the nozzle body, and a first groove extending from the first through hole is formed on the outer peripheral surface of the inner cylinder member. And (B) a second through hole penetrating outward from the proximal end side space of the nozzle body is formed, and the atmosphere of the outer cylinder member is formed from the second through hole on the outer peripheral surface of the inner cylinder member. A second groove extending to the communication hole is formed;
By fitting the inner cylinder member and the outer cylinder member together, the intake communication path is formed by the first through hole and the first groove, and the second through hole, the second groove, and the An adsorption nozzle in which the atmosphere communication passage is formed by an atmosphere communication hole.

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