# US 2012/0141222 A1 · Arc surface milling assistant processing device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2012/0141222 A1 - Document ID: US20120141222A1 - Status: Published application - Kind: A1 - Application number: 13/173,129 - Filed: 2011-06-30 - Published: 2012-06-07 - Earliest claimed: 2010-12-07 - Assignees: Hon Hai Precision Industry Co., Ltd.; HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD. - Inventors: ZHAO-LEI MA; HONG-JUN ZHU; CHEN-HONG HOU; XIN-MING ZHANG - Web page: https://patentgrep.com/patent/US20120141222A1 ## CPC - B27C 5/10: Portable hand-operated wood-milling machines; Routers - B27C 5/04: Guide fences for work - B23C 3/126: {Portable devices or machines for chamfering edges} - Y10T 409/304144: Means to trim edge - Y10T 409/30784: including means to adustably position cutter - Y10T 409/307896: with work holder or guide - Y10T 409/308624: with limit means to aid in positioning of cutter bit or work [e.g., gauge, stop, etc.] - Y10T 409/309016: with work holder or guide - Y10T 409/309184: including cutter limited to rotary motion - B27C: PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL (machine tools in general B23; working wood using abrasive, e.g. sanding, devices B24; tools for these purposes B27G) - B23C: MILLING (broaching B23D; broach-milling in making gears B23F; arrangement for copying or controlling B23Q) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An arc surface milling machine includes a worktable, a base and a backup plate. The worktable is assembled adjacent to the base. The backup plate is adjustably mounted on the base and positioned adjacent to the worktable. The worktable includes a work surface, an opposite bottom surface, and a mounting end. The base is assembled to the mounting end of the worktable. The work surface defines a concave wedge-shaped receiving space adjacent to the mounting end and forms a milling opening communicating with the work surface and the mounting end. ## Claims ### Claim 1 An arc surface milling assistant processing device, comprising: a worktable comprising a work surface, a bottom surface opposite to the work surface, and a mounting end, the work surface defining a concave receiving space adjacent to the mounting end, thereby forming a milling opening communicating with the work surface and the mounting end; a base assembled adjacent to and connected with the mounting end of the worktable; and a backup plate adjustably mounted on the base and positioned adjacent to the worktable, thereby forming a tool assembling space together with the base and the worktable. ### Claim 2 (depends on 1) The arc surface milling assistant processing device as claimed in claim 1, wherein the backup plate comprises an abutting surface and a wedge-shaped inclined mounting side surface; the base defines an inclined mounting surface inclining toward the work surface of the worktable and positioned adjacent to a top surface thereof; the abutting surface of the backup plate faces toward the work surface of the worktable, and the inclined mounting side surface of the backup plate resists against the inclined mounting surface of the base. ### Claim 3 (depends on 2) The arc surface milling assistant processing device as claimed in claim 2, wherein the backup plate further comprises a resisting surface opposite to the abutting surface and two end surfaces; a receiving slot is defined in the resisting surface and communicates with the inclined mounting side surface. ### Claim 4 (depends on 3) The arc surface milling assistant processing device as claimed in claim 3, wherein the arc surface milling assistant processing device further comprises a fine adjusting assembly adjustably mounted to the base and resisting against the resisting surface of the backup plate, to adjust the position of the backup plate relative to the base and the worktable. ### Claim 5 (depends on 4) The arc surface milling assistant processing device as claimed in claim 4, wherein the base is substantially H-shaped and comprises two substantially parallel support blocks and a standard plate connecting the two support blocks together; the two support blocks are fixed to the mounting end of the worktable and respectively positioned at two sides of the receiving space. ### Claim 6 (depends on 5) The arc surface milling assistant processing device as claimed in claim 5, wherein the worktable further comprises two abutting blocks parallelly formed on the end surface of the mounting end and respectively positioned at two sides of the receiving space; the two support blocks respectively tightly abuts with the two abutting blocks of the worktable. ### Claim 7 (depends on 5) The arc surface milling assistant processing device as claimed in claim 5, wherein the worktable further comprises two opposite side surfaces and two holding slots respectively recessed from the two opposite side surfaces of the worktable. ### Claim 8 (depends on 5) The arc surface milling assistant processing device as claimed in claim 5, wherein the fine adjusting assembly comprises two standard blocks and two adjusting nuts, the two standard blocks are respectively fixed onto the two support blocks, each of the standard blocks defines an adjusting screw hole; the two adjusting nuts are respectively assembled to, and pass through the two adjusting screw holes of the two standard blocks and further resist against the resisting surface of the backup plate. ### Claim 9 (depends on 8) The arc surface milling assistant processing device as claimed in claim 8, wherein the backup plate further comprises two latching blocks oppositely formed on the inclined mounting side surface and positioned adjacent to two end surfaces of the backup plate; each of the support blocks defines an assembling slot in the inclined mounting surface thereof corresponding to and latching with the two latching blocks of the backup plate. ### Claim 10 (depends on 9) The arc surface milling assistant processing device as claimed in claim 9, wherein each of the two latching blocks defines a locking hole and a standard scale mark at an outer end surface thereof; the arc surface milling assistant processing device further comprises two retaining members respectively passing through the two locking holes and fixed to the two support blocks. ### Claim 11 An arc surface milling assistant processing device, comprising: a worktable having a work surface, a bottom surface opposite to the work surface, and a mounting end, the work surface defining a concave wedge-shaped receiving space adjacent to the mounting end, thereby forming a milling opening communicating with the work surface and the mounting end; a base assembled adjacent to and connecting with the mounting end of the worktable; a backup plate adjustably mounted on the base and positioned adjacent to the worktable, thereby forming a tool assembling space together with the base and the worktable; and a fine adjusting assembly adjustably mounted to the base and resisting against the backup plate, to adjust the position of the backup plate relative to the base and the worktable. ### Claim 12 (depends on 11) The arc surface milling assistant processing device as claimed in claim 11, wherein the tool assembling space communicates with the milling opening and the receiving space; the receiving space comprises a slanted surface inclining from one end of the work surface adjacent to the mounting end toward the bottom surface of the worktable. ### Claim 13 (depends on 12) The arc surface milling assistant processing device as claimed in claim 12, wherein the worktable further comprises two opposite side surfaces and two holding slots respectively recessed from two opposite side surfaces of the worktable. ### Claim 14 (depends on 12) The arc surface milling assistant processing device as claimed in claim 12, wherein the base is substantially H-shaped and comprises two substantially parallel support blocks and a standard plate connecting the two support blocks together; the two support blocks are fixed to the mounting end of the worktable and respectively positioned at two sides of the receiving space. ### Claim 15 (depends on 14) The arc surface milling assistant processing device as claimed in claim 14, wherein the worktable further comprises two abutting blocks parallelly formed on the end surface of the mounting end and respectively positioned at two sides of the receiving space; the two support blocks respectively tightly abuts with the two abutting blocks of the worktable. ### Claim 16 (depends on 15) The arc surface milling assistant processing device as claimed in claim 15, wherein the backup plate comprises an abutting surface and a wedge-shaped inclined mounting side surface; the base defines an inclined mounting surface inclining toward the work surface of the worktable; the abutting surface of the backup plate faces toward the work surface side of the worktable, and the inclined mounting side surface of the backup plate resists against the inclined mounting surface of the base.