Adsorption nozzle assembly

Abstract

The present invention provides an adsorption nozzle assembly in which the first and second components are difficult to separate. [Solution] The suction nozzle assembly according to this disclosure comprises a first member and a second member. The first member has a suction port and a first through-hole communicating with the suction port. The second member has a second through-hole connected to the first through-hole and encloses one end of the first member, or one end of the second member is enclosed in the first member. One of the first or second member has a projection. The other of the first or second member has a groove corresponding to the projection. The groove has an opening, a first groove, and a second groove. The first groove communicates with the opening and extends in a first direction which is the extending direction of the first through-hole. The second groove communicates with the first groove and extends in a second direction which intersects the first direction. The projection is located in the groove at a position other than the first groove.

Description

Technical Field

[0001] The present disclosure relates to an adsorption nozzle assembly.

Background Art

[0002] Conventionally, chip-shaped electronic components such as semiconductor elements, chip capacitors, and chip resistors are adsorbed by an adsorption nozzle mounted on an electronic component mounting machine, and then transported as they are and mounted at a predetermined position on a circuit board.

[0003] Patent Document 1 discloses an adsorption nozzle assembly including a cylindrical adsorption nozzle having an adsorption surface and a flange portion into which the rear end of the adsorption nozzle is inserted. This adsorption nozzle assembly has a protruding portion located on one of the adsorption nozzle or the flange portion and a receiving portion located on the other of the adsorption nozzle or the flange portion, and the protruding portion is fixed with an adhesive at the receiving portion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present disclosure provides an adsorption nozzle assembly in which a first member and a second member are difficult to separate. <00(...)033>

Means for Solving the Problems

[0006] A suction nozzle assembly according to one aspect of the present disclosure comprises a first member and a second member. The first member has a suction port and a first through-hole communicating with the suction port. The second member has a second through-hole connected to the first through-hole and encloses one end of the first member, or one end of the second member is enclosed by the first member. One of the first or second member has a projection. The other of the first or second member has a groove corresponding to the projection. The groove has an opening, a first groove, and a second groove. The first groove communicates with the opening and extends in a first direction which is the extending direction of the first through-hole. The second groove communicates with the first groove and extends in a second direction which intersects the first direction. The projection is located in the groove at a position other than the first groove. [Effects of the Invention]

[0007] According to the adsorption nozzle assembly of this disclosure, the first member and the second member are difficult to separate. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view showing an example of the configuration of an adsorption nozzle assembly according to the first embodiment. [Figure 2] Figure 2 is a cross-sectional view taken along line II-II in Figure 1. [Figure 3] Figure 3 is a cross-sectional view taken along line III-III in Figure 2. [Figure 4] Figure 4 is a schematic cross-sectional view of the second member according to the first embodiment. [Figure 5] Figure 5 is a schematic cross-sectional view of the second member according to the second embodiment. [Figure 6] Figure 6 is a cross-sectional view taken along the line VI-VI in Figure 5. [Figure 7] Figure 7 is a schematic cross-sectional view of the adsorption nozzle assembly according to the fourth embodiment. [Figure 8] Figure 8 is a schematic cross-sectional view of the adsorption nozzle assembly according to the fifth embodiment. [Figure 9] Figure 9 is a cross-sectional view showing another example of the adsorption nozzle assembly according to the fifth embodiment. [Modes for carrying out the invention]

[0009] The embodiments for implementing the adsorption nozzle assembly according to this disclosure (hereinafter referred to as "Embodiments") will be described in detail below with reference to the drawings. However, this disclosure is not limited by these embodiments. Furthermore, each embodiment can be combined as appropriate, provided that the processing content is not inconsistent. Also, the same parts are denoted by the same reference numerals in each of the following embodiments, and redundant descriptions are omitted.

[0010] Furthermore, in the embodiments described below, expressions such as "constant," "orthogonal," "perpendicular," or "parallel" may be used, but these expressions do not require strict adherence to "constant," "orthogonal," "perpendicular," or "parallel" conditions. In other words, each of the above expressions allows for deviations, for example, in manufacturing accuracy or installation accuracy.

[0011] Furthermore, in the drawings referenced below, for the sake of clarity, mutually orthogonal X, Y, and Z axis directions are sometimes defined, and a Cartesian coordinate system is shown with the positive Z axis pointing vertically upward.

[0012] Patent Document 1 discloses a configuration in which a projection is provided on one of the suction nozzle (hereinafter also referred to as the first member) or the flange portion (hereinafter also referred to as the second member) and a receiving portion is provided on the other, for the purpose of preventing the suction nozzle from rotating. In the suction nozzle assembly of Patent Document 1, when the suction nozzle attempts to rotate relative to the flange portion, the projection contacts the receiving portion, thereby preventing the suction nozzle from rotating. The projection is fixed to the receiving portion with adhesive.

[0013] However, in the suction nozzle assembly described in Patent Document 1, the only mechanism for locking the suction nozzle and the flange portion in the insertion direction of the suction nozzle into the flange portion is adhesive. Therefore, if the adhesive function deteriorates, there is a risk that the suction nozzle and the flange portion may separate.

[0014] Therefore, realization of an adsorption nozzle assembly in which the first member and the second member are difficult to separate is expected.

[0015] (First Embodiment) (Configuration of Adsorption Nozzle Assembly) First, the configuration of the adsorption nozzle assembly 100 according to the first embodiment will be described while referring to FIGS. 1 to 3. FIG. 1 is a perspective view showing an example of the configuration of the adsorption nozzle assembly 100 according to the first embodiment. FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 2.

[0016] The adsorption nozzle assembly 100 according to the first embodiment may hold an electronic component (not shown) by vacuum-sucking the electronic component with a suction port 10a (see FIG. 3) at the tip.

[0017] As shown in FIGS. 1 to 3, the adsorption nozzle assembly 100 according to the first embodiment may include a first member 10, a second member 20, and an adhesive 30.

[0018] The first member 10 may be made of, for example, ceramics. The first member 10 may have, for example, an electrical conductivity intermediate between insulating properties and conductive properties (hereinafter also referred to as "semiconductive properties"). The first member 10 may be made of, for example, ceramics containing conductive metal oxide particles. The first member 10 may have, for example, a volume resistivity of 10 3 Ω·cm or more and 10 11 Ω·cm or less.

[0019] [ The main component of the first member 10 may be, for example, zirconia (ZrO2), alumina (Al2O3), a zirconia-alumina composite, or silicon carbide (SiC). Thereby, high mechanical properties can be imparted to the first member 10.

[0020] In the present disclosure, the "main component" means 50% by mass or more when the total of the components constituting it is 100% by mass.

[0021] Furthermore, the main component of the metal oxide particles contained in the first member 10 may be iron oxide (Fe2O3), chromium oxide (Cr2O3), or titanium oxide (TiO2). This makes it possible to impart semiconductivity to the first member 10, which has high mechanical properties.

[0022] For example, if the first member 10 is made of a conductive material, excessive static electricity may be discharged from the electronic components, potentially causing sparks. On the other hand, if the first member 10 is made of an insulating material, it may not be possible to discharge any static electricity from the electronic components at all.

[0023] However, in the suction nozzle assembly 100 according to the first embodiment, since semiconducting ceramics are used for the first member 10, the suctioned electronic component can be appropriately discharged from static electricity between the time it is suctioned and when it is set on the circuit board. As a result, sticking, repulsion, or sparking caused by static electricity is less likely to occur.

[0024] The first member 10 may, for example, have a substantially cylindrical shape and include a suction port 10a for adsorbing electronic components and a first through-hole 10b communicating with the suction port 10a.

[0025] The second member 20 may be made of, for example, metal. The second member 20 may be made of, for example, stainless steel or an aluminum alloy.

[0026] The second member 20 may, for example, have a substantially cylindrical shape and have a second through-hole 21 connected to the first through-hole 10b.

[0027] The suction nozzle assembly 100 may be integrated, for example, by the second member 20 enclosing one end of the first member 10. In the suction nozzle assembly 100, the first through hole 10b of the first member 10 and the second through hole 21 of the second member 20 may communicate with each other and function as a suction hole for adsorbing electronic components or the like.

[0028] The adhesive 30 may be interposed between the first member 10 and the second member 20 to fix the first member 10 and the second member 20. The adhesive 30 may include adhesives containing divinylbenzene, bisphenol F, polyglycidyl ether, vinylcyclohexine dioxide, dicyclopentadiene oxide, epoxy resin, urethane, silicone, acrylic, and the like.

[0029] Furthermore, in this embodiment, the adhesive 30 contains a metal filler, which imparts conductivity to the adhesive 30. This allows static electricity discharged from the electronic components to be released to the second member 20 via the adhesive 30, thereby enabling stable static electricity discharge from the electronic components.

[0030] The metal filler of this disclosure may be composed entirely of metal, or its surface may be made of metal while its interior is made of a non-metallic material, such as resin. The metal filler may be spherical, for example, with a diameter in the range of 5 μm to 45 μm. The diameter of the metal filler may also be in the range of 15 μm to 30 μm.

[0031] Here, either the first member 10 or the second member 20 may have a projection. The other member may have a groove corresponding to the projection. For example, as shown in Figures 2 and 3, the first member 10 may have a projection 11. The projection 11 may be located on the outer circumferential surface of the first member 10 and may protrude radially outward from the outer circumferential surface. The second member 20 may have a groove 22. The groove 22 may be located in a position corresponding to the projection 11. The groove 22 may be located along the inner circumferential surface of the second member 20.

[0032] <Configuration of the second component> Figure 4 is a schematic cross-sectional view of the second member 20 according to the first embodiment. As shown in Figure 4, the second through hole 21 of the second member 20 may have a first portion 21a and a second portion 21b connected to the first portion 21a and having a larger diameter than the first portion 21a. One end of the first member 10 (see Figure 3) may be inserted into the second portion 21b.

[0033] The second member 20 may have a groove 22. The groove 22 may be located on the second portion 21b. The groove 22 may have an opening 22a, a first groove 22b, and a second groove 22c. The opening 22a may be located on the edge of the second portion 21b.

[0034] The first groove 22b may extend in a first direction, which is the extension direction of the first through hole 10b, in this case in the Z-axis direction. The second groove 22c may extend in a second direction, which communicates with the first groove 22b and intersects the first direction, in this case in the X-axis direction.

[0035] The projection 11 of the first member 10 may be located in a position other than the first groove 22b of the groove 22. In other words, the projection 11 may be located in the second groove 22c. Specifically, the projection 11 may be located in a region R1 of the second groove 22c that is away from the opening 22a.

[0036] Thus, in the suction nozzle assembly 100 according to the first embodiment, the groove 22 has a second groove 22c, and the projection 11 is positioned in the second groove 22c, so that the first member 10 and the second member 20 can be locked in the insertion direction of the first member 10 into the second member 20, in this case the positive Z-axis direction. In other words, when the first member 10 tries to move away from the second member 20, the projection 11 contacts the second groove 22c, preventing the first member 10 from separating from the second member 20. Therefore, the first member 10 and the second member 20 are difficult to separate.

[0037] As shown in Figures 2 and 3, the groove 22 and the projection 11 may be fixed together via adhesive 30. With this configuration, the groove 22 and the projection 11 are firmly fixed together by the adhesive 30, making it more difficult for the first member 10 and the second member 20 to separate.

[0038] <Manufacturing method for adsorption nozzle assembly> Next, a method for manufacturing the suction nozzle assembly 100 according to the first embodiment will be described. Note that the suction nozzle assembly 100 according to the second to fifth embodiments, which will be described later, can also be manufactured using the same method.

[0039] First, the first member 10 is a ceramic sintered body and the second member 20 is a metal member, both prepared in the desired shape. The molded ceramic sintered body can be manufactured by injection molding, slip molding, 3D printing, etc. With such a manufacturing method, the formation of the protrusion 11 is easy. The molded metal member can also be manufactured by injection molding, slip molding, 3D printing, etc. With such a manufacturing method, the formation of the groove 22 is easy.

[0040] Subsequently, the first member 10 and the second member 20 are bonded together. For example, after applying adhesive 30 to the second portion 21b of the second member 20, the first member 10 may be inserted into the second member 20 so that the projection 11 fits into the groove 22. Specifically, the projection 11 may be inserted through the opening 22a of the groove 22, passed through the first groove 22b, and fixed in the second groove 22c with adhesive 30, thereby integrating the first member 10 and the second member 20.

[0041] As described above, the suction nozzle assembly 100 according to the first embodiment has a second groove 22c in which the groove 22 extends in a second direction, and the projection 11 is located in a position other than the first groove 22b. With this configuration, the first member 10 and the second member 20 are difficult to separate.

[0042] In Figure 4, an example is shown where the second groove 22c extends along the second direction, in this case the X-axis direction. However, the direction in which the second groove 22c extends is not limited to this. For example, the second groove 22c may extend in a direction inclined with respect to the second direction.

[0043] Furthermore, the degree to which the projection 11 fits into the groove 22 may be such that the projection 11 can easily move within the groove 22 when the first member 10 is inserted into the second member 20, or that there is a small gap between the groove 22 and the projection 11 so that the first member 10 does not move significantly away from the second member 20 after the first member 10 has been inserted into the second member 20.

[0044] Furthermore, the projection 11 may be, for example, cylindrical, prismatic, or have rounded corners on the surface facing the groove 22.

[0045] (Second Embodiment) Figure 5 is a schematic cross-sectional view of the second member 20 according to the second embodiment. As shown in Figure 5, the groove 22 may have a third groove 22d that communicates with the second groove 22c. The third groove 22d may extend in a third direction intersecting the second direction, in this case, in the Z-axis direction.

[0046] The projection 11 of the first member 10 (see Figure 3) may be located in the third groove 22d. Specifically, the projection 11 may be located in region R2 of the third groove 22d that is away from the opening 22a.

[0047] In this way, the groove 22 has a third groove 22d, and the projection 11 is positioned in the third groove 22d. This prevents the first member 10 from rotating when it attempts to rotate relative to the second member 20, by causing the projection 11 to contact the third groove 22d.

[0048] In Figure 5, an example is shown where the third groove 22d extends from the second groove 22c in the positive Z-axis direction; however, the third groove 22d may also extend from the second groove 22c in the negative Z-axis direction.

[0049] Furthermore, while Figure 5 shows an example where the third groove 22d extends along the third direction, in this case the Z-axis direction, the direction in which the third groove 22d extends is not limited to this. For example, the third groove 22d may extend in a direction inclined with respect to the third direction.

[0050] (Third embodiment) Figure 6 is a cross-sectional view taken along line VI-VI in Figure 5. For ease of understanding, Figure 6 shows the first member 10, while the adhesive 30 is not shown. As shown in Figure 6, the depth of the third groove 22d may be shallower as it moves away from the opening 22a (see Figure 5).

[0051] With this configuration, after inserting the projection 11 through the opening 22a of the groove 22, it passes through the first groove 22b and the second groove 22c, and the projection 11 is fixed in the third groove 22d at a location where the amount of projection of the projection 11 corresponds to the depth of the third groove 22d, making it more difficult for the first member 10 and the second member 20 to separate.

[0052] In this example, we have shown a case where the depth of the third groove 22d is not uniform, but the area where the depth is not uniform is not limited to the third groove 22d. For example, as shown in Figure 4, if the groove 22 has a first groove 22b and a second groove 22c, the depth of the second groove 22c may be shallower as it moves away from the opening 22a. In this case as well, the projection 11 is fixed at a location in the second groove 22c where the amount of projection of the projection 11 corresponds to the depth of the second groove 22c, making it more difficult for the first member 10 and the second member 20 to separate.

[0053] (Fourth Embodiment) Figure 7 is a schematic cross-sectional view of the suction nozzle assembly 100 according to the fourth embodiment. In the first embodiment, an example was shown in which the first member 10 has a projection 11 and the second member 20 has a groove 22 (see Figure 3), but the members having projections and grooves are not limited to this. For example, as shown in Figure 7, the first member 10 may have a groove 12 and the second member 20 may have a projection 23.

[0054] The groove 12 may have a shape in which a part of the outer circumferential surface of the first member 10 is recessed. The projection 23 may protrude radially inward from the inner circumferential surface of the second through hole 21 of the second member 20.

[0055] In this case as well, similar to the first embodiment, the groove 12 may have a second groove (not shown) that extends in a second direction intersecting the first direction, which is the extending direction of the first through hole 10b. The projection 23 may be located in the second groove. With this configuration, the first member 10 and the second member 20 are difficult to separate.

[0056] (Fifth embodiment) Figure 8 is a schematic cross-sectional view of the suction nozzle assembly 100 according to the fifth embodiment. Figure 9 is a cross-sectional view showing another example of the suction nozzle assembly 100 according to the fifth embodiment. In the first embodiment, an example was shown in which the second member 20 encloses one end of the first member 10, but the invention is not limited to this. For example, as shown in Figures 8 and 9, the first member 10 may enclose one end of the second member 20.

[0057] As shown in Figure 8, the first member 10 may have a projection 13, and the second member 20 may have a groove 24 at a position corresponding to the projection 13. In this case as in the first embodiment, the groove 24 may have a second groove (not shown) that extends in a second direction intersecting the first direction, which is the extending direction of the first through hole 10b. The projection 13 may be located in the second groove. With this configuration, the first member 10 and the second member 20 are difficult to separate.

[0058] Furthermore, as shown in Figure 9, the second member 20 may have a projection 25, and the first member 10 may have a groove 14 at a position corresponding to the projection 25. In this case as in the first embodiment, the groove 14 may have a second groove (not shown) extending in a second direction intersecting the first direction, which is the extending direction of the first through hole 10b. The projection 25 may be located in the second groove. With this configuration, the first member 10 and the second member 20 are difficult to separate.

[0059] The suction nozzle assembly 100 according to this embodiment may also be composed of a molded ceramic sintered body as the first member 10 and a molded metal member as the second member 20, similar to the first embodiment. The molded ceramic sintered body can be manufactured by injection molding, slip molding, 3D printing, etc. Such manufacturing methods make it easy to form the protrusions 13 or grooves 14. The molded metal member can also be manufactured by injection molding, slip molding, 3D printing, etc. Such manufacturing methods make it easy to form the grooves 24 or protrusions 25. As shown in Figure 8, if the grooves 24 are on the outer surface, they may be formed by laser processing or machining.

[0060] Furthermore, this technology can also be configured as follows. (1) A first member having an adsorption port and a first through-hole communicating with the adsorption port, A second member having a second through-hole connected to the first through-hole, and containing one end of the first member, or having one end contained within the first member, It has, One of the first member or the second member has a projection, The other of the first or second member has a groove corresponding to the projection, The groove portion has an opening, a first groove portion communicating with the opening and extending in a first direction which is the extending direction of the first through hole, and a second groove portion communicating with the first groove portion and extending in a second direction which intersects the first direction. The aforementioned projection is located in a position other than the first groove of the groove, within the suction nozzle assembly. (2) The adsorption nozzle assembly according to (1), wherein the groove portion further has a third groove portion that communicates with the second groove portion and extends in a third direction intersecting the second direction. (3) The suction nozzle assembly according to (2), wherein the depth of the second groove or the third groove becomes shallower as it moves away from the opening. (4) The groove and the projection are fixed together via an adhesive, as described in any one of (1) to (3). (5) The first member has a volume resistivity of 10 3 Ω cm or more 10 11 An adsorption nozzle assembly according to any one of (1) to (4), comprising ceramics with a diameter of Ω·cm or less.

[0061] The embodiments disclosed herein should be considered in all respects as illustrative and not restrictive. Indeed, the embodiments described above can be embodied in a variety of forms. Furthermore, the embodiments described above may be omitted, replaced, or modified in various ways without departing from the scope and spirit of the appended claims. [Explanation of Symbols]

[0062] 10 First Member 10a Adsorption port 10b 1st through hole 11,13,23,25 Protrusion 12, 14, 22, 24 grooves 20 Second Member 21 Second through hole 21a Part 1 21b 2nd part 22a opening 22b 1st groove 22c 2nd groove 22d Third groove 30 Adhesives 100 Suction Nozzle Assembly R1,R2 area

Claims

1. A first member having an adsorption port and a first through-hole communicating with the adsorption port, A second member having a second through-hole connected to the first through-hole, and enclosing one end of the first member, or having one end of the first member enclosed within the first member, It has, One of the first member or the second member has a projection, The other of the first member or the second member has a groove corresponding to the projection, The groove portion has an opening, a first groove portion communicating with the opening and extending in a first direction which is the extending direction of the first through hole, and a second groove portion communicating with the first groove portion and extending in a second direction which intersects the first direction. The aforementioned projection is located in a position other than the first groove of the groove in the suction nozzle assembly.

2. The adsorption nozzle assembly according to claim 1, wherein the groove portion further has a third groove portion that communicates with the second groove portion and extends in a third direction intersecting the second direction.

3. The suction nozzle assembly according to claim 2, wherein the depth of the second groove or the third groove becomes shallower as it moves away from the opening.

4. The suction nozzle assembly according to claim 1, wherein the groove and the projection are fixed together via an adhesive.

5. The first member has a volume resistivity of 10 ３ Ω・cm or more 10 １１ The adsorption nozzle assembly according to claim 1, comprising ceramics with a diameter of Ω·cm or less.

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