# US 9,039,492 B2 · Enclosed polishing apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,492 B2 - Document ID: US9039492B2 - Status: Granted - Kind: B2 - Application number: 13/753,662 - Filed: 2013-01-30 - Published: 2013-08-22 - Granted: 2015-05-26 - Earliest claimed: 2012-02-20 - Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd.; Hon Hai Precision Industry Co., Ltd. - Applicants: Fu Tai Hua Industry (Shenzhen) Co., Ltd.; Hon Hai Precision Industry Co., Ltd. - Inventors: Zhi-Guo Sun; Jun-Lin Peng; Yu-Lun Li - Web page: https://patentgrep.com/patent/US9039492B2 ## CPC - B24B 41/02: Frames; Beds; Carriages - B24B 9/00: Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor (B24B21/00 takes precedence; for sharpening cutting edges on tools B24B3/00; removing burrs by loose abrasive material B24B31/00) - B24B 47/12: by mechanical gearing or electric power (B24B47/16 takes precedence) - B24B: MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING (grinding of gear teeth B23F, of screw-threads B23G1/36; by electro-erosion B23H; abrasive or related blasting B24C; tools for grinding, buffing or sharpening B24D; polishing compositions C09G1/00; abrasives C09K3/14; electrolytic etching or polishing C25F3/00; grinding arrangements for use on assembled railway tracks E01B31/17); DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS ## Abstract An enclosed polishing apparatus include a housing, a fixing seat, a guiding mechanism, and a chain-driven polishing mechanism. The housing includes a bottom housing and a top housing connected to the bottom housing. The fixing seat is securely placed in the bottom housing. The guiding mechanism is placed in the top housing above the fixing seat. The polishing mechanism is movably mounted on the guiding mechanism above the fixing seat. The polishing mechanism is driven and guided by the guiding mechanism to follow a desired polishing contour on a workpiece. ## Claims ### Claim 1 An enclosed polishing apparatus, comprising: a housing comprising a bottom housing and a top housing connected to the bottom housing; a fixing seat securely placed in the bottom housing; a guiding mechanism placed in the top housing and above the fixing seat, wherein the guiding mechanism comprises a mounting base and a matching member, the mounting base comprises a main body and a guiding portion being a first protrusion extending outwardly from the main body, the matching member being a second protrusion extending outward along a periphery of the main body and separately along the first protrusion, thereby a guiding groove being formed between the first protrusion and the second protrusion; and a polishing mechanism movably mounted in the guiding groove and above the fixing seat, the polishing mechanism being driven and guided by the guiding mechanism. ### Claim 2 (depends on 1) The enclosed polishing apparatus of claim 1, wherein a gap is formed between the fixing seat and the bottom housing to facilitate powder wastes produced during polishing to be extracted out through the gap. ### Claim 3 (depends on 2) The enclosed polishing apparatus of claim 2, wherein the bottom housing comprises a body portion and an extension portion extending from the body portion away from the top housing, the extension portion is substantially hollow and communicates with the gap. ### Claim 4 (depends on 1) The enclosed polishing apparatus of claim 1, wherein the guiding mechanism further comprises a chain assembly, the chain assembly is movably sleeved on the guiding portion in the guiding groove, and the polishing mechanism is moved by the chain assembly along the guiding portion. ### Claim 5 (depends on 4) The enclosed polishing apparatus of claim 4, wherein the matching member comprises an inner sidewall facing the guiding portion, and a plurality of teeth in the inner sidewall of the matching member and opposite to the chain assembly, the plurality of teeth and the chain assembly cooperatively form a guiding rail, and the polishing mechanism is movably placed on the guiding rail. ### Claim 6 (depends on 5) The enclosed polishing apparatus of claim 5, wherein the polishing mechanism comprises an engaging gear, and the engaging gear is movably mounted between and meshed with the plurality of teeth and the chain assembly. ### Claim 7 (depends on 6) The enclosed polishing apparatus of claim 6, wherein the polishing mechanism comprises a polishing member connected to the engaging gear, the polishing member is placed opposite to and above the fixing seat. ### Claim 8 (depends on 4) The enclosed polishing apparatus of claim 4, wherein the guiding portion further comprises a first guiding portion and a second guiding portion adjacent to the first guiding portion, the guiding mechanism further comprises a pushing assembly, the pushing assembly is movably placed between and resists against the first guiding assembly and the second guiding assembly, the pushing assembly is configured to tighten the guiding portion. ### Claim 9 (depends on 4) The enclosed polishing apparatus of claim 4, wherein the guiding mechanism further comprises a driving assembly configured to drive the chain assembly. ### Claim 10 (depends on 9) The enclosed polishing apparatus of claim 9, wherein the driving assembly comprises a driving member, an action wheel, a driven wheel, and a driving gear, the driving member is placed on the mounting base, the action wheel is connected to and driven by the driving member, the driven wheel is meshed with the action wheel and non-rotatably and coaxially connected to the driving gear, the driving gear is slidably placed on the mounting base and meshed with the chain assembly. ### Claim 11 (depends on 10) The enclosed polishing apparatus of claim 10, wherein the guiding mechanism further comprises an adjustment assembly, the adjusting assembly comprises a pressing plate and an adjusting member movably mounted on the pressing plate, the adjusting member resists against the chain assembly so that the driving gear is meshed with the chain assembly. ### Claim 12 (depends on 1) The enclosed polishing apparatus of claim 1, wherein the bottom housing is rotatably connected to the top housing. ### Claim 13 An enclosed polishing apparatus, comprising: a housing comprising a bottom housing and a top housing rotatably connected to the bottom housing; a fixing seat securely placed in the bottom housing, a gap being formed between the fixing seat and the bottom housing to facilitate powder wastes produced during polishing to be extracted out through the gap; a guiding mechanism placed in the top housing and above the fixing seat, wherein the guiding mechanism comprises a mounting base and a matching member, the mounting base comprises a main body and a guiding portion being a first protrusion extending outwardly from the main body, the matching member being a second protrusion extending outward along a periphery of the main body and separately along the first protrusion, thereby a guiding groove being formed between the first protrusion and the second protrusion; and a polishing mechanism movably mounted in the guiding groove and above the fixing seat, the polishing mechanism being driven and guided by the guiding mechanism. ### Claim 14 (depends on 13) The enclosed polishing apparatus of claim 13, wherein the bottom housing comprises a body portion and an extension portion extending from the body portion away from the top housing, the extension portion is substantially hollow and communicates with the gap. ### Claim 15 (depends on 13) The enclosed polishing apparatus of claim 13, wherein the guiding mechanism further comprises a chain assembly, the chain assembly is movably sleeved on the guiding portion in the guiding groove, and the polishing mechanism is moved by the chain assembly along the guiding portion. ### Claim 16 (depends on 15) The enclosed polishing apparatus of claim 15, wherein the matching member comprises an inner sidewall facing the guiding portion, and a plurality of teeth in the inner sidewall of the matching member and opposite to the chain assembly, the plurality of teeth and the chain assembly cooperatively form a guiding rail, and the polishing mechanism is movably placed on the guiding rail. ### Claim 17 (depends on 16) The enclosed polishing apparatus of claim 16, wherein the polishing mechanism comprises an engaging gear, and the engaging gear is movably mounted between and meshed with the plurality of teeth and the chain assembly. ### Claim 18 (depends on 17) The enclosed polishing apparatus of claim 17, wherein the polishing mechanism comprises a polishing member connected to the engaging gear, the polishing member is placed opposite to and above the fixing seat. ### Claim 19 (depends on 15) The enclosed polishing apparatus of claim 15, wherein the guiding portion comprises a first guiding portion and a second guiding portion adjacent to the first guiding portion, the guiding mechanism further comprises a pushing assembly, the pushing assembly is movably placed between and resists against the first guiding assembly and the second guiding assembly, the pushing assembly is configured to tighten the guiding portion. ### Claim 20 (depends on 15) The enclosed polishing apparatus of claim 15, wherein the guiding mechanism further comprises a driving assembly driving the chain assembly, the driving assembly comprises a driving member, an action wheel, a driven wheel, and a driving gear, the driving member is placed on the mounting base, the action wheel is connected to and driven by the driving member, the driven wheel is meshed with the action wheel and non-rotatably and coaxially connected to the driving gear, the driving gear is slidably placed on the mounting base and meshed with the chain assembly.