Polishing media assembly for fiber optic polishing machine

Abstract

A polishing media assembly for use with a fiber optic polishing machine includes a pad, a support plate, a polishing film, and optionally a platen. The pad is configured and arranged to be operatively connected to the support plate. At least one of the pad or the platen includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of recessed surfaces forming gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.

Description

BACKGROUND

[0001] A fiber optic cable or ribbon generally includes a protective or supporting material through which optical fibers extend. The cables or ribbons typically have connectors located on each end to connect them to other fiber optic cables or ribbons or to peripheral devices, and the connectors are high precision devices that position the optical fibers for optimal connection.

[0002] In order to pass light signals through optical fibers, the end face of the connector (from which a ferrule and optical fibers extend) must abut an adjacent connector in a specific manner. The high tolerances required of the parts to make these connections lead to precise shaping of the ends of the optical fibers via cleaving, cutting, and / or polishing. Apex offset, radius of curvature, fiber protrusion / recession, and angularity are all geometric parameters of the optical fiber end face that play into the quality of the signal passing through it. Final test measurements for back reflection and insertion loss are typically used as the final checks to determine the quality of the geometry (as well as the alignment, cleanliness, and surface finish of the finished cable). As such, the end face is usually cleaved, cut and / or polished to exacting standards so as to produce a finished product with minimal back reflection and loss. For example, it is often necessary to cleave, cut, and / or polish the end face of the connector to a precise length, i.e., so the end face projects a predetermined amount from a reference point such as a shoulder on the fiber optic connector within a predetermined tolerance. Fiber optic cables having multiple optical fibers can also be cleaved, cut, and / or polished to produce a particular performance specification.

[0003] Optical fiber polishers typically include a rotating platen and a polishing mechanism, such as a polishing arm mechanism (arm or overarm assembly), that positions and supports the connectors during the polishing process. Typically, the end face is lowered onto a film resting on the platen, and depending upon the film, the speed of the platen, the pressure applied, and its duration, acquires a product suitable for a particular application. Optical fiber polishers generally include a fixture coupled to the arm mechanism that is capable of holding and gripping one or more fiber optic connectors and advancing them under controlled conditions of speed and force to engage a plurality of fiber optic ends into engagement with a polishing member such as a rotatable platen having an abrasive surface (e.g., a platen with a pad having a film with an abrasive surface positioned thereon).

[0004] The manufacturing process for building a finished fiber optic connector typically involves polishing it at various speeds and pressures using various polishing films or media. Typically, the process will start with a more aggressive film of higher abrasive particle size at lower speeds and pressures and work toward smaller particle size films at faster speeds and higher pressures. Replacing the polishing films is referred to as media exchange.

[0005] The desired polishing film is positioned on the platen and lubricated or wetted, and the fixture is cleaned between polishing steps. The lubrication or wetting can cause the support plate on which the polishing film is positioned to stick or adhere to the platen, which can prevent the media exchange to complete its process.

[0006] For the reasons stated above and for other reasons stated below, which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for a polishing media assembly for use with a fiber optic polishing machine.SUMMARY

[0007] The above-mentioned problems associated with prior devices are addressed by embodiments of the disclosure and will be understood by reading and understanding the present specification. The following summary is made by way of example and not by way of limitation. It is merely provided to aid in understanding some of the aspects of the invention.

[0008] In one embodiment, a pad is configured and arranged for use with a polishing media assembly of a fiber optic polishing machine. The fiber optic polishing machine includes a platen, and the polishing media assembly includes a support plate and a polishing film. The support plate has a top plate surface and a bottom plate surface, and the polishing film is operatively connected to the top plate surface. The pad comprises a base and an adhesive. The base has a top base surface and a bottom base surface. The adhesive is operatively connected to the top base surface and is configured and arranged to operatively connect the top base surface to the bottom plate surface. A textured surface formed in the bottom base surface includes a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of engaging surfaces are configured and arranged to engage the platen of the fiber optic polishing machine during use, and the plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the bottom base surface does not engage the platen during use.

[0009] In one embodiment, a polishing media assembly for use with a fiber optic polishing machine including a platen comprises a support plate, a polishing film, and a pad. The support plate has a top plate surface and a bottom plate surface. The polishing film is operatively connected to the top plate surface. The pad is operatively connected to the bottom plate surface, and the pad includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of engaging surfaces are configured and arranged to engage the platen of the fiber optic polishing machine during use, and the plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.

[0010] In one embodiment, a polishing media assembly for use with a fiber optic polishing machine comprises a platen, a support plate, a polishing film, and a pad. The platen is configured and arranged to be operatively connected to the fiber optic polishing machine. The support plate has a top plate surface and a bottom plate surface. The polishing film is operatively connected to the top plate surface. The pad is operatively connected to the bottom plate surface. At least one of the platen or the pad has a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain principles of embodiments. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. In accordance with common practice, the various described features are not drawn to scale but are drawn to emphasize specific features relevant to the present disclosure. Reference characters denote like elements throughout the Figures and the text.

[0012] FIG. 1 is an exploded perspective view of an embodiment polishing media assembly, positioned relative to a platen of a fiber optic polishing machine, constructed in accordance with the principles of the present invention;

[0013] FIG. 2 is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0014] FIG. 3 is a cross-section view of the polishing media assembly shown in FIG. 2 taken along the lines A-A in FIG. 2 with a portion magnified;

[0015] FIG. 4 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0016] FIG. 5 is a cross-section view of the polishing media assembly shown in FIG. 4 taken along the lines B-B in FIG. 4 with a portion magnified;

[0017] FIG. 6 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0018] FIG. 7 is a cross-section view of the polishing media assembly shown in FIG. 6 taken along the lines C-C in FIG. 6 with a portion magnified;

[0019] FIG. 8 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0020] FIG. 9 is a cross-section view of the polishing media assembly shown in FIG. 8 taken along the lines D-D in FIG. 8 with a portion magnified;

[0021] FIG. 10 is a top view of a platen assembly constructed in accordance with the principles of the present invention;

[0022] FIG. 11 is a is a bottom view of the platen assembly shown in FIG. 10;

[0023] FIG. 12 is a cross-section view of the platen assembly shown in FIG. 10 taken along the lines E-E in FIG. 10 with a portion magnified.DETAILED DESCRIPTION

[0024] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,”“leading,”“trailing,” etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0025] It is to be understood that other embodiments may be utilized and mechanical changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is, therefore, not to be taken in a limiting sense.

[0026] Embodiments of the disclosure generally provide a polishing media assembly for use with a fiber optic polishing machine. The polishing media assembly includes a pad, a support plate, and a polishing film. In some embodiments, although the platen is considered part of the fiber optic polishing machine, it is also considered part of the polishing media assembly. The pad is configured and arranged to be operatively connected to the support plate. In some embodiments, the pad includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces and the platen can be devoid of a textured surface. The plurality of engaging surfaces on the pad is configured and arranged to engage the platen, when operatively connected to the support plate, during use. The plurality of recessed surfaces on the pad form gaps between the plurality of engaging surfaces where the pad does not engage the platen. In some embodiments, the platen includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces and the support plate can be devoid of a textured surface. The plurality of engaging surfaces on the platen is configured and arranged to engage a pad, when operatively connected to the support plate, during use. The plurality of recessed surfaces on the platen form gaps between the plurality of engaging surfaces where the platen does not engage the pad during use. Thus, in some embodiments, only one of the support plate or the platen has a textured surface. In some embodiments, at least one of the support plate or the platen has a textured surface. Hence, if desired, both the support plate and the platen could have textured surfaces as long as there is enough friction between the two components.

[0027] An example of a fiber optic polishing machine with which the polishing media assembly can be used is the 5400 Automated Polisher Suite, including the APM-HDC-5400 polishing machine, by Domaille Engineering, LLC located in Rochester, MN. Another example is disclosed in PCT Application Publication WO 2024 / 186645 A2, which is incorporated by reference in its entirety herein. An example fiber optic polishing machine 130 is shown in FIG. 1. The fiber optic polishing machine 130 includes a platen 132, a media exchange assembly 140, and a cleaning assembly 150. Although example polishing machines and components are shown and described herein, it is recognized that other suitable polishing machines and components can be used and the present invention is not limited to use with these examples. Because fiber optic polishing machines are generally known in the art, only relevant components of fiber optic polishing machine are being generally described herein.

[0028] Media exchange assemblies and / or cleaning assemblies can be used with fiber optic polishing machines, and one or both of these processes can be automated or can be conducted manually. Media exchange assemblies are used to place a desired polishing film, preferably including an underlying support plate or disc (e.g., glass plate, rubber pad, or the like), on the platen, after removing any prior step's polishing film from the platen. The terms polishing film and media are used interchangeably. The polishing film includes a polishing surface, which can be coarse or fine as determined by the polishing step. It is recommended to clean the fixture and fiber optic connectors between polishing steps to prevent scratching from coarser media materials used in prior polishing steps.

[0029] In one embodiment, illustrated in FIG. 1, a polishing media assembly 100 includes a support plate 102, a polishing film 110, and a pad 120. The support plate 102 is preferably smooth and flat (not angled) on its top plate surface 103 so that an adhesive 112 can interconnect the support plate 102 and the polishing film 110 and so that it provides a consistent polishing surface with the polishing film 110, and relative to the platen 132, during the polishing process. The polishing film 110 includes a polishing surface 111, which can be coarse or fine as determined by the polishing step. The pad 120 is attached to the bottom plate surface 104 of the support plate 102 with an adhesive 122. The pad 120 includes a base 121. One side of the base 121 is preferably smooth and flat (not angled) to support the adhesive 122, and the opposing side of the base 121 includes a textured surface 123. The textured surface 123 includes an engaging surface or a plurality of engaging surfaces 125 and a recessed surface or a plurality of recessed surfaces or gaps 124. Distal ends of the engaging surface(s) 125 are preferably parallel to the top plate surface 103 to assist in providing the consistent polishing surface and to provide sufficient friction to keep the pad 120 in position on the platen 132 of the fiber optic polishing machine 130. The recessed surface(s) or gaps 124 assist in easily removing or releasing the pad 120 from the platen 132 while still allowing the engaging surface(s) 125 to prevent slipping of the pad 120 relative to the platen 132. Preferably, the friction between the platen 132 and the pad 120 supports the support plate 102 so that the polishing surface 111 is flat (not angled), prevents movement between the platen 132 and the support plate 102, and prevents the pad 120 from sticking when it needs to be removed from the platen 132. Preferably, in some embodiments, the support plate 102 includes locating grooves 106 in opposing sides 105.

[0030] In one embodiment, illustrated in FIGS. 2 and 3, a support plate 202 includes a top surface 203, a bottom surface 204, and a side 205. The side 205 can include locating groove(s) 206. A pad 220 is operatively connected to the bottom surface 204, preferably with an adhesive. The pad 220 includes a base 221 with a connecting surface, which is connected to the bottom surface 204, and a textured surface 223. The textured surface 223 includes an engaging surface 225 and a recessed surface 224. In this embodiment, the engaging surface 225 includes a plurality of radially extending, zig-zag shaped protrusions extending outward from the base 221. The recessed surface 224 is formed between the engaging surface 225. FIG. 3 is a cross-section view with a middle portion, where the engaging surface 225 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 223.

[0031] In one embodiment, illustrated in FIGS. 4 and 5, a support plate 302 includes a top surface 303, a bottom surface 304, and a side 305. The side 305 can include locating groove(s) 306. A pad 320 is operatively connected to the bottom surface 304, preferably with an adhesive. The pad 320 includes a base 321 with a connecting surface, which is connected to the bottom surface 304, and a textured surface 323. The textured surface 323 includes an engaging surface 325 and a recessed surface 324. In this embodiment, the engaging surface 325 includes a plurality of radially extending, serpentine (non-linear) shaped protrusions extending outward from the base 321. The recessed surface 324 is formed between the engaging surface 325. FIG. 5 is a cross-section view with a middle portion, where the engaging surface 325 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 323.

[0032] In one embodiment, illustrated in FIGS. 6 and 7, a support plate 402 includes a top surface 403, a bottom surface 404, and a side 405. The side 405 can include locating groove(s) 406. A pad 420 is operatively connected to the bottom surface 404, preferably with an adhesive. The pad 420 includes a base 421 with a connecting surface, which is connected to the bottom surface 404, and a textured surface 423. The textured surface 423 includes an engaging surface 425 and a recessed surface 424. In this embodiment, the engaging surface 425 includes a pebbled-like surface, encircling a center portion, extending outward from the base 421. The recessed surface 424 is formed between the engaging surface 425. FIG. 7 is a cross-section view with a middle portion, where the engaging surface 425 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 423.

[0033] In one embodiment, illustrated in FIGS. 8 and 9, a support plate 502 includes a top surface 503, a bottom surface 504, and a side 505. The side 505 can include locating groove(s) 506. A pad 520 is operatively connected to the bottom surface 504, preferably with an adhesive. The pad 520 includes a base 521 with a connecting surface, which is connected to the bottom surface 504, and a textured surface 523. The textured surface 523 includes an engaging surface 525 and a recessed surface 524. In this embodiment, the textured surface 523 includes a crisscross, or inverse waffle-like, surface extending outward from the base 521, with the protrusions forming the engaging surface 525 and the indentations forming the recessed surface 524. The recessed surface 524 is formed between the engaging surface 525. FIG. 9 is a cross-section view along a recessed surface 524 magnified to more clearly illustrate a side view of the textured surface 523.

[0034] In one embodiment, illustrated in FIGS. 10-12, a platen 1032 is configured and arranged to support a polishing film operatively connected to a support plate, including a pad. In some embodiments, the pad operatively connected to the support plate is devoid of a textured surface. The platen 1032 includes a base 1033 with a top surface 1034 and a bottom surface 1038. The top surface 1034 includes a textured surface 1035, which includes an engaging surface 1037 and a recessed surface 1036. In this embodiment, the textured surface 1035 includes a crisscross, or inverse waffle-like, surface extending outward from the base 1033, with the protrusions forming the engaging surface 1037 and the indentations forming the recessed surface 1036. The recessed surface 1036 is formed between the engaging surface 1037. FIG. 12 is a cross-section view, through engaging surface 1037, magnified to more clearly illustrate a side view of the textured surface 1035.

[0035] During media exchange, regardless whether performed manually or automatically, it can be difficult to remove the support plate from the platen, especially if the pad or the platen is wet, because the support plate (via pad) can stick or adhere to the platen. The textured surface, which is part of at least one of the support plate or the platen, assists in preventing this while still providing stability during the polishing process. In some embodiments, the pad preferably has a hardness of 20-90 Shore Type A durometer, which assists in preventing slipping. In some embodiment, the gaps preferably comprise 20% to 60% of the textured surface, which assists in preventing sticking.

[0036] Advantages of embodiments of the present invention include efficiency and reduced human labor in media exchange steps.

[0037] Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and / or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, it is intended that this invention be limited only by the claims and the equivalents thereof.

Examples

Embodiment Construction

[0024]In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,”“leading,”“trailing,” etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0025]It is to be understood that other embodiments may be utilized and mechanical cha...

BACKGROUND

[0001] A fiber optic cable or ribbon generally includes a protective or supporting material through which optical fibers extend. The cables or ribbons typically have connectors located on each end to connect them to other fiber optic cables or ribbons or to peripheral devices, and the connectors are high precision devices that position the optical fibers for optimal connection.

[0002] In order to pass light signals through optical fibers, the end face of the connector (from which a ferrule and optical fibers extend) must abut an adjacent connector in a specific manner. The high tolerances required of the parts to make these connections lead to precise shaping of the ends of the optical fibers via cleaving, cutting, and / or polishing. Apex offset, radius of curvature, fiber protrusion / recession, and angularity are all geometric parameters of the optical fiber end face that play into the quality of the signal passing through it. Final test measurements for back reflection and insertion loss are typically used as the final checks to determine the quality of the geometry (as well as the alignment, cleanliness, and surface finish of the finished cable). As such, the end face is usually cleaved, cut and / or polished to exacting standards so as to produce a finished product with minimal back reflection and loss. For example, it is often necessary to cleave, cut, and / or polish the end face of the connector to a precise length, i.e., so the end face projects a predetermined amount from a reference point such as a shoulder on the fiber optic connector within a predetermined tolerance. Fiber optic cables having multiple optical fibers can also be cleaved, cut, and / or polished to produce a particular performance specification.

[0003] Optical fiber polishers typically include a rotating platen and a polishing mechanism, such as a polishing arm mechanism (arm or overarm assembly), that positions and supports the connectors during the polishing process. Typically, the end face is lowered onto a film resting on the platen, and depending upon the film, the speed of the platen, the pressure applied, and its duration, acquires a product suitable for a particular application. Optical fiber polishers generally include a fixture coupled to the arm mechanism that is capable of holding and gripping one or more fiber optic connectors and advancing them under controlled conditions of speed and force to engage a plurality of fiber optic ends into engagement with a polishing member such as a rotatable platen having an abrasive surface (e.g., a platen with a pad having a film with an abrasive surface positioned thereon).

[0004] The manufacturing process for building a finished fiber optic connector typically involves polishing it at various speeds and pressures using various polishing films or media. Typically, the process will start with a more aggressive film of higher abrasive particle size at lower speeds and pressures and work toward smaller particle size films at faster speeds and higher pressures. Replacing the polishing films is referred to as media exchange.

[0005] The desired polishing film is positioned on the platen and lubricated or wetted, and the fixture is cleaned between polishing steps. The lubrication or wetting can cause the support plate on which the polishing film is positioned to stick or adhere to the platen, which can prevent the media exchange to complete its process.

[0006] For the reasons stated above and for other reasons stated below, which will become apparent to those skilled in the art upon reading and understanding the present specification, there is a need in the art for a polishing media assembly for use with a fiber optic polishing machine.SUMMARY

[0007] The above-mentioned problems associated with prior devices are addressed by embodiments of the disclosure and will be understood by reading and understanding the present specification. The following summary is made by way of example and not by way of limitation. It is merely provided to aid in understanding some of the aspects of the invention.

[0008] In one embodiment, a pad is configured and arranged for use with a polishing media assembly of a fiber optic polishing machine. The fiber optic polishing machine includes a platen, and the polishing media assembly includes a support plate and a polishing film. The support plate has a top plate surface and a bottom plate surface, and the polishing film is operatively connected to the top plate surface. The pad comprises a base and an adhesive. The base has a top base surface and a bottom base surface. The adhesive is operatively connected to the top base surface and is configured and arranged to operatively connect the top base surface to the bottom plate surface. A textured surface formed in the bottom base surface includes a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of engaging surfaces are configured and arranged to engage the platen of the fiber optic polishing machine during use, and the plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the bottom base surface does not engage the platen during use.

[0009] In one embodiment, a polishing media assembly for use with a fiber optic polishing machine including a platen comprises a support plate, a polishing film, and a pad. The support plate has a top plate surface and a bottom plate surface. The polishing film is operatively connected to the top plate surface. The pad is operatively connected to the bottom plate surface, and the pad includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of engaging surfaces are configured and arranged to engage the platen of the fiber optic polishing machine during use, and the plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.

[0010] In one embodiment, a polishing media assembly for use with a fiber optic polishing machine comprises a platen, a support plate, a polishing film, and a pad. The platen is configured and arranged to be operatively connected to the fiber optic polishing machine. The support plate has a top plate surface and a bottom plate surface. The polishing film is operatively connected to the top plate surface. The pad is operatively connected to the bottom plate surface. At least one of the platen or the pad has a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces. The plurality of recessed surfaces form gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain principles of embodiments. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. In accordance with common practice, the various described features are not drawn to scale but are drawn to emphasize specific features relevant to the present disclosure. Reference characters denote like elements throughout the Figures and the text.

[0012] FIG. 1 is an exploded perspective view of an embodiment polishing media assembly, positioned relative to a platen of a fiber optic polishing machine, constructed in accordance with the principles of the present invention;

[0013] FIG. 2 is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0014] FIG. 3 is a cross-section view of the polishing media assembly shown in FIG. 2 taken along the lines A-A in FIG. 2 with a portion magnified;

[0015] FIG. 4 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0016] FIG. 5 is a cross-section view of the polishing media assembly shown in FIG. 4 taken along the lines B-B in FIG. 4 with a portion magnified;

[0017] FIG. 6 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0018] FIG. 7 is a cross-section view of the polishing media assembly shown in FIG. 6 taken along the lines C-C in FIG. 6 with a portion magnified;

[0019] FIG. 8 is a is a bottom view of another embodiment polishing media assembly constructed in accordance with the principles of the present invention;

[0020] FIG. 9 is a cross-section view of the polishing media assembly shown in FIG. 8 taken along the lines D-D in FIG. 8 with a portion magnified;

[0021] FIG. 10 is a top view of a platen assembly constructed in accordance with the principles of the present invention;

[0022] FIG. 11 is a is a bottom view of the platen assembly shown in FIG. 10;

[0023] FIG. 12 is a cross-section view of the platen assembly shown in FIG. 10 taken along the lines E-E in FIG. 10 with a portion magnified.DETAILED DESCRIPTION

[0024] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,”“leading,”“trailing,” etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0025] It is to be understood that other embodiments may be utilized and mechanical changes may be made without departing from the spirit and scope of the present disclosure. The following detailed description is, therefore, not to be taken in a limiting sense.

[0026] Embodiments of the disclosure generally provide a polishing media assembly for use with a fiber optic polishing machine. The polishing media assembly includes a pad, a support plate, and a polishing film. In some embodiments, although the platen is considered part of the fiber optic polishing machine, it is also considered part of the polishing media assembly. The pad is configured and arranged to be operatively connected to the support plate. In some embodiments, the pad includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces and the platen can be devoid of a textured surface. The plurality of engaging surfaces on the pad is configured and arranged to engage the platen, when operatively connected to the support plate, during use. The plurality of recessed surfaces on the pad form gaps between the plurality of engaging surfaces where the pad does not engage the platen. In some embodiments, the platen includes a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces and the support plate can be devoid of a textured surface. The plurality of engaging surfaces on the platen is configured and arranged to engage a pad, when operatively connected to the support plate, during use. The plurality of recessed surfaces on the platen form gaps between the plurality of engaging surfaces where the platen does not engage the pad during use. Thus, in some embodiments, only one of the support plate or the platen has a textured surface. In some embodiments, at least one of the support plate or the platen has a textured surface. Hence, if desired, both the support plate and the platen could have textured surfaces as long as there is enough friction between the two components.

[0027] An example of a fiber optic polishing machine with which the polishing media assembly can be used is the 5400 Automated Polisher Suite, including the APM-HDC-5400 polishing machine, by Domaille Engineering, LLC located in Rochester, MN. Another example is disclosed in PCT Application Publication WO 2024 / 186645 A2, which is incorporated by reference in its entirety herein. An example fiber optic polishing machine 130 is shown in FIG. 1. The fiber optic polishing machine 130 includes a platen 132, a media exchange assembly 140, and a cleaning assembly 150. Although example polishing machines and components are shown and described herein, it is recognized that other suitable polishing machines and components can be used and the present invention is not limited to use with these examples. Because fiber optic polishing machines are generally known in the art, only relevant components of fiber optic polishing machine are being generally described herein.

[0028] Media exchange assemblies and / or cleaning assemblies can be used with fiber optic polishing machines, and one or both of these processes can be automated or can be conducted manually. Media exchange assemblies are used to place a desired polishing film, preferably including an underlying support plate or disc (e.g., glass plate, rubber pad, or the like), on the platen, after removing any prior step's polishing film from the platen. The terms polishing film and media are used interchangeably. The polishing film includes a polishing surface, which can be coarse or fine as determined by the polishing step. It is recommended to clean the fixture and fiber optic connectors between polishing steps to prevent scratching from coarser media materials used in prior polishing steps.

[0029] In one embodiment, illustrated in FIG. 1, a polishing media assembly 100 includes a support plate 102, a polishing film 110, and a pad 120. The support plate 102 is preferably smooth and flat (not angled) on its top plate surface 103 so that an adhesive 112 can interconnect the support plate 102 and the polishing film 110 and so that it provides a consistent polishing surface with the polishing film 110, and relative to the platen 132, during the polishing process. The polishing film 110 includes a polishing surface 111, which can be coarse or fine as determined by the polishing step. The pad 120 is attached to the bottom plate surface 104 of the support plate 102 with an adhesive 122. The pad 120 includes a base 121. One side of the base 121 is preferably smooth and flat (not angled) to support the adhesive 122, and the opposing side of the base 121 includes a textured surface 123. The textured surface 123 includes an engaging surface or a plurality of engaging surfaces 125 and a recessed surface or a plurality of recessed surfaces or gaps 124. Distal ends of the engaging surface(s) 125 are preferably parallel to the top plate surface 103 to assist in providing the consistent polishing surface and to provide sufficient friction to keep the pad 120 in position on the platen 132 of the fiber optic polishing machine 130. The recessed surface(s) or gaps 124 assist in easily removing or releasing the pad 120 from the platen 132 while still allowing the engaging surface(s) 125 to prevent slipping of the pad 120 relative to the platen 132. Preferably, the friction between the platen 132 and the pad 120 supports the support plate 102 so that the polishing surface 111 is flat (not angled), prevents movement between the platen 132 and the support plate 102, and prevents the pad 120 from sticking when it needs to be removed from the platen 132. Preferably, in some embodiments, the support plate 102 includes locating grooves 106 in opposing sides 105.

[0030] In one embodiment, illustrated in FIGS. 2 and 3, a support plate 202 includes a top surface 203, a bottom surface 204, and a side 205. The side 205 can include locating groove(s) 206. A pad 220 is operatively connected to the bottom surface 204, preferably with an adhesive. The pad 220 includes a base 221 with a connecting surface, which is connected to the bottom surface 204, and a textured surface 223. The textured surface 223 includes an engaging surface 225 and a recessed surface 224. In this embodiment, the engaging surface 225 includes a plurality of radially extending, zig-zag shaped protrusions extending outward from the base 221. The recessed surface 224 is formed between the engaging surface 225. FIG. 3 is a cross-section view with a middle portion, where the engaging surface 225 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 223.

[0031] In one embodiment, illustrated in FIGS. 4 and 5, a support plate 302 includes a top surface 303, a bottom surface 304, and a side 305. The side 305 can include locating groove(s) 306. A pad 320 is operatively connected to the bottom surface 304, preferably with an adhesive. The pad 320 includes a base 321 with a connecting surface, which is connected to the bottom surface 304, and a textured surface 323. The textured surface 323 includes an engaging surface 325 and a recessed surface 324. In this embodiment, the engaging surface 325 includes a plurality of radially extending, serpentine (non-linear) shaped protrusions extending outward from the base 321. The recessed surface 324 is formed between the engaging surface 325. FIG. 5 is a cross-section view with a middle portion, where the engaging surface 325 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 323.

[0032] In one embodiment, illustrated in FIGS. 6 and 7, a support plate 402 includes a top surface 403, a bottom surface 404, and a side 405. The side 405 can include locating groove(s) 406. A pad 420 is operatively connected to the bottom surface 404, preferably with an adhesive. The pad 420 includes a base 421 with a connecting surface, which is connected to the bottom surface 404, and a textured surface 423. The textured surface 423 includes an engaging surface 425 and a recessed surface 424. In this embodiment, the engaging surface 425 includes a pebbled-like surface, encircling a center portion, extending outward from the base 421. The recessed surface 424 is formed between the engaging surface 425. FIG. 7 is a cross-section view with a middle portion, where the engaging surface 425 is preferably absent proximate a center portion, magnified to more clearly illustrate a side view of the textured surface 423.

[0033] In one embodiment, illustrated in FIGS. 8 and 9, a support plate 502 includes a top surface 503, a bottom surface 504, and a side 505. The side 505 can include locating groove(s) 506. A pad 520 is operatively connected to the bottom surface 504, preferably with an adhesive. The pad 520 includes a base 521 with a connecting surface, which is connected to the bottom surface 504, and a textured surface 523. The textured surface 523 includes an engaging surface 525 and a recessed surface 524. In this embodiment, the textured surface 523 includes a crisscross, or inverse waffle-like, surface extending outward from the base 521, with the protrusions forming the engaging surface 525 and the indentations forming the recessed surface 524. The recessed surface 524 is formed between the engaging surface 525. FIG. 9 is a cross-section view along a recessed surface 524 magnified to more clearly illustrate a side view of the textured surface 523.

[0034] In one embodiment, illustrated in FIGS. 10-12, a platen 1032 is configured and arranged to support a polishing film operatively connected to a support plate, including a pad. In some embodiments, the pad operatively connected to the support plate is devoid of a textured surface. The platen 1032 includes a base 1033 with a top surface 1034 and a bottom surface 1038. The top surface 1034 includes a textured surface 1035, which includes an engaging surface 1037 and a recessed surface 1036. In this embodiment, the textured surface 1035 includes a crisscross, or inverse waffle-like, surface extending outward from the base 1033, with the protrusions forming the engaging surface 1037 and the indentations forming the recessed surface 1036. The recessed surface 1036 is formed between the engaging surface 1037. FIG. 12 is a cross-section view, through engaging surface 1037, magnified to more clearly illustrate a side view of the textured surface 1035.

[0035] During media exchange, regardless whether performed manually or automatically, it can be difficult to remove the support plate from the platen, especially if the pad or the platen is wet, because the support plate (via pad) can stick or adhere to the platen. The textured surface, which is part of at least one of the support plate or the platen, assists in preventing this while still providing stability during the polishing process. In some embodiments, the pad preferably has a hardness of 20-90 Shore Type A durometer, which assists in preventing slipping. In some embodiment, the gaps preferably comprise 20% to 60% of the textured surface, which assists in preventing sticking.

[0036] Advantages of embodiments of the present invention include efficiency and reduced human labor in media exchange steps.

[0037] Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and / or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, it is intended that this invention be limited only by the claims and the equivalents thereof.

Examples

Embodiment Construction

[0024]In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration embodiments in which the disclosure may be practiced. In this regard, directional terminology, such as “top,”“bottom,”“front,”“back,”“leading,”“trailing,” etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0025]It is to be understood that other embodiments may be utilized and mechanical cha...

Claims

1. A pad for use with a polishing media assembly of a fiber optic polishing machine including a platen, the polishing media assembly including a support plate and a polishing film, the support plate having a top plate surface and a bottom plate surface, the polishing film being operatively connected to the top plate surface, comprising:a base having a top base surface and a bottom base surface;an adhesive operatively connected to the top base surface configured and arranged to operatively connect the top base surface to the bottom plate surface; anda textured surface formed in the bottom base surface, wherein the textured surface includes a plurality of engaging surfaces and a plurality of recessed surfaces, the plurality of engaging surfaces configured and arranged to engage the platen of the fiber optic polishing machine during use, the plurality of recessed surfaces forming gaps between the plurality of engaging surfaces where the bottom base surface does not engage the platen during use.

2. The pad of claim 1, wherein the textured surface has a hardness of 20-90 Shore Type A durometer.

3. The pad of claim 1, wherein the engaging surface is configured and arranged to fully engage the platen during use.

4. The pad of claim 1, wherein the engaging surface is parallel to the top plate surface.

5. The pad of claim 1, wherein the gaps comprise 20% to 60% of the textured surface.

6. A polishing media assembly for use with a fiber optic polishing machine including a platen, comprising:a support plate having a top plate surface and a bottom plate surface;a polishing film being operatively connected to the top plate surface;a pad being operatively connected to the bottom plate surface, the pad including a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces, the plurality of engaging surfaces configured and arranged to engage the platen of the fiber optic polishing machine during use, the plurality of recessed surfaces forming gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.

7. The polishing media assembly of claim 6, wherein the support plate is made of a material selected from the group consisting of glass and rubber.

8. The polishing media assembly of claim 6, wherein the polishing film is selected from the group consisting of an abrasive surface and a polishing surface.

9. The polishing media assembly of claim 6, wherein the textured surface has a hardness of 20-90 Shore Type A durometer.

10. The polishing media assembly of claim 6, wherein the engaging surface is configured and arranged to fully engage the platen during use.

11. The polishing media assembly of claim 6, wherein the engaging surface is parallel to the top plate surface.

12. The polishing media assembly of claim 6, wherein the gaps comprise 20% to 60% of the textured surface.

13. A polishing media assembly for use with a fiber optic polishing machine, comprising:a platen configured and arranged to be operatively connected to the fiber optic polishing machine;a support plate having a top plate surface and a bottom plate surface;a polishing film being operatively connected to the top plate surface;a pad operatively connected to the bottom plate surface;wherein at least one of the platen or the pad has a textured surface including a plurality of engaging surfaces and a plurality of recessed surfaces, the plurality of recessed surfaces forming gaps between the plurality of engaging surfaces where the pad does not engage the platen during use.

14. The polishing media assembly of claim 13, wherein the support plate is made of a material selected from the group consisting of glass and rubber.

15. The polishing media assembly of claim 13, wherein the polishing film is selected from the group consisting of an abrasive surface and a polishing surface.

16. The polishing media assembly of claim 13, wherein the pad has a hardness of 20-70 Shore Type A durometer.

17. The polishing media assembly of claim 13, wherein the engaging surface is flat to fully engage the pad or the platen during use.

18. The polishing media assembly of claim 13, wherein the engaging surface is parallel to the top plate surface.

19. The polishing media assembly of claim 13, wherein the gaps comprise 20% to 60% of the textured surface.

Images