CN104190965A - High-precision through hole reaming tool - Google Patents
High-precision through hole reaming tool Download PDFInfo
- Publication number
- CN104190965A CN104190965A CN201410371041.1A CN201410371041A CN104190965A CN 104190965 A CN104190965 A CN 104190965A CN 201410371041 A CN201410371041 A CN 201410371041A CN 104190965 A CN104190965 A CN 104190965A
- Authority
- CN
- China
- Prior art keywords
- blade
- cutting edge
- edge
- precision
- tool rest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0018—Drills for enlarging a hole
- B23B51/0027—Drills for enlarging a hole by tool swivelling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/08—Side or plan views of cutting edges
- B23B2251/082—Curved cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/12—Cross sectional views of the cutting edges
- B23B2251/122—Bevelled cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/20—Number of cutting edges
- B23B2251/202—Three cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention relates to the technical field of machining tools, in particular to a high-precision through hole reaming tool. The high-precision through hole reaming tool comprises a tool apron and a blade, wherein the blade is detachably mounted on the tool apron through screws, a blade body of the blade is provided with two conical holes, the blade is provided with a first cutting edge and a second cutting edge, the first cutting edge is arranged at the outer edge of the blade, the second cutting edge is arranged at the bottom of the blade, the bottom of the blade is of an oblique angle structure, the inner side of the bottom of the blade is longer than the outer side of the bottom of the blade, corners on the two sides of the bottom of the blade are both in circular arc transition, the edge of the first cutting edge, the edge of the second cutting edge and the obverse side of the blade form a bevel structure, the edge of the first cutting edge, the edge of the second cutting edge and the reverse side of the blade form a cambered surface structure, the bevel structure is longer than the cambered surface structure, and a tool handle is arranged at the rear end of the tool apron. The high-precision through hole reaming tool has the advantages that the machining precision is high, the blade can be replaced, and the cost is low.
Description
Technical field
The present invention relates to machining tool technical field, be specifically related to a kind of high accuracy through hole cornish bit.
Background technology
Reaming processing in metal cutting processing is general with reamer, drill bit at present, drill bit cuts the poorest desired precision of processing that often do not reach of its precision with the cutting edge of its front end, the cutting output of the high still cutting at one time of machining accuracy of reamer is little, when cutting, easily collapse cutter, after collapsing cutter, cutter is scrapped, can only use another reamer instead, processing cost is high.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned defect, provides folding a kind of high accuracy through hole cornish bit, and this tool sharpening precision is high, and blade is replaceable, and cost is low.
The technical scheme that the present invention solves its technical problem employing is as follows:
A kind of high accuracy through hole cornish bit, comprise tool rest, blade, described blade is arranged on tool rest so that screw is dismountable, blade lamellar body is provided with two bellmouths, blade is provided with the first cutting edge and the second cutting edge, described the first cutting edge is arranged on the outer ledge place of blade, the second cutting edge is arranged on blade bottom, blade bottom is oblique angle structure, outside is longer than in inner side, and two bottom sides corner is arc transition, the first cutting edge, the positive ramp structure that forms of the cutting edge of the second cutting edge and blade, with the blade back side be globoidal structure, blade bottom leans out the front end of tool rest, ramp structure is longer than globoidal structure, globoidal structure plays buffer-oriented effect in the time that cutting edge contacts with workpiece, prevent from collapsing cutter in the time just contacting, described tool rest rear end is provided with handle of a knife.The first cutting edge is main cutting edge, the second cutting edge provides cutting in the time of axial feed, blade bottom inside is longer than outside and is played guiding cushioning effect in axial tangential hole time, prevent in conjunction with the chamfering structure of corner that to greatest extent blade from bursting apart, all in a straight line, common processes aperture the first cutting edge, in the whole process of axial feed, before sword, after sword, all hole inwall is carried out to machining, improved the precision of processing.
Further, described bellmouth large port is in blade front, and portlet is in the blade back side.Bellmouth sinks to head of screw does not affect chip removal in lamellar body, and bellmouth ensures the integrality of blade to greatest extent, makes the intensity effect of blade drop to minimum.
Further, described tool rest is circumferentially evenly provided with multiple installation portions, and installation portion is provided with the flat recess that is embedded blade, and flat recess thickness is identical with blade thickness.Blade is embedded in flat recess, in the time of cutting, prevents blade shake, and blade plays supplemental support, decomposes the cutting force that blade is subject to, and reduces the cutter rate that collapses of blade.
The invention has the beneficial effects as follows: adopt such scheme, blade is embedded in the flat recess on tool rest and with screw and fixes, in the time of machining, the auxiliary blade of sharing of flat recess is subject to cutting force and reduces vibrations, prevent that blade is stressed excessive and collapse cutter, collapse cutter after blade can change rapidly, cutting precision is high, can high-speed cutting, raise the efficiency.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the present invention is aforesaid will be become apparent with other object, feature and advantage.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of tool rest of the present invention.
Fig. 3 is the front view of blade of the present invention.
Fig. 4 is the schematic cross-section of blade of the present invention.
Wherein: 1 is tool rest, 1.1 is flat recess, and 2 is blade, and 2.1 is bellmouth, and 2.2 is the first cutting edge, and 2.3 is the second cutting edge 2.3.
Detailed description of the invention
A kind of high accuracy through hole cornish bit as shown in Figures 1 to 4, comprise tool rest 1, blade 2, two bellmouth 2.1 symmetries be arranged on blade 2 lamellar bodies, the first cutting edge 2.2 is arranged on the outer ledge place of blade 2, the second cutting edge 2.3 is arranged on the bottom of blade 2, the front end of tool rest 1 is circumferentially evenly provided with multiple installation portions, the tool post at installation portion place is provided with the breach of chip removal, installation portion be provided be embedded blade 2 flat recess 1.1, flat recess thickness is identical with blade 2 thickness, blade 2 is fixed in flat recess 1.1 with screw, on flat recess 1.1, be provided with bellmouth and the screwed hole of attachment screw with blade 2 bellmouth 2.1 relative position places, bellmouth coordinates with head of screw in flat recess cell body top, the rear head of screw end face of fixed blade 2 is installed concordant with flat recess cell body top upper surface, screwed hole locks in flat recess cell body bottom and screw thread, the side that blade 2 is relative with hole inwall is outside, opposite side is inner side, inner side is embedded in flat recess 1.1, blade 2 bottoms are oblique angle structure, outside is longer than in inner side, and two bottom sides corner is arc transition, the first cutting edge 2.2, the positive ramp structure that forms of the cutting edge of the second cutting edge 2.3 and blade, with the blade back side be globoidal structure, the length of ramp structure is longer than globoidal structure, tool rest rear end is handle of a knife.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention openly in scope, still can do some corrections or change, therefore the scope that the scope of the present invention limits with claims is as the criterion.
Claims (3)
1. a high accuracy through hole cornish bit, comprise tool rest, blade, it is characterized in that: described blade is arranged on tool rest so that screw is dismountable, blade lamellar body is provided with two bellmouths, blade is provided with the first cutting edge and the second cutting edge, described the first cutting edge is arranged on the outer ledge place of blade, the second cutting edge is arranged on blade bottom, blade bottom is oblique angle structure, outside is longer than in inner side, and two bottom sides corner is arc transition, the first cutting edge, the positive ramp structure that forms of the cutting edge of the second cutting edge and blade, with the blade back side be globoidal structure, ramp structure is longer than globoidal structure, described tool rest rear end is provided with handle of a knife.
2. a kind of high accuracy through hole cornish bit according to claim 1, is characterized in that: described bellmouth large port is in blade front, and portlet is in the blade back side.
3. a kind of high accuracy through hole cornish bit according to claim 1, is characterized in that: described tool rest is circumferentially evenly provided with multiple installation portions, and installation portion is provided with the flat recess that is embedded blade, and flat recess thickness is identical with blade thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371041.1A CN104190965A (en) | 2014-07-30 | 2014-07-30 | High-precision through hole reaming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371041.1A CN104190965A (en) | 2014-07-30 | 2014-07-30 | High-precision through hole reaming tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104190965A true CN104190965A (en) | 2014-12-10 |
Family
ID=52076412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371041.1A Pending CN104190965A (en) | 2014-07-30 | 2014-07-30 | High-precision through hole reaming tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104190965A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074305A1 (en) * | 2003-10-06 | 2005-04-07 | Hsin-Tien Chang | Micro-adjustable boring bar |
| CN2829943Y (en) * | 2005-11-21 | 2006-10-25 | 江苏高精机电装备有限公司 | Indexable stair rough boring cutter made of high-speed steel |
| CN201565620U (en) * | 2009-11-13 | 2010-09-01 | 天津市永恒电机厂 | Combined turning processing cutter |
| CN202894490U (en) * | 2012-11-21 | 2013-04-24 | 郑州市钻石精密制造有限公司 | Novel reamer knife back |
| CN103447558A (en) * | 2012-06-01 | 2013-12-18 | 上海航天设备制造总厂 | Floating boring tool for machining of blind-hole thin-walled deep-hole parts |
| CN204094162U (en) * | 2014-07-30 | 2015-01-14 | 常州西利合金工具有限公司 | A kind of high accuracy through hole cornish bit |
-
2014
- 2014-07-30 CN CN201410371041.1A patent/CN104190965A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050074305A1 (en) * | 2003-10-06 | 2005-04-07 | Hsin-Tien Chang | Micro-adjustable boring bar |
| CN2829943Y (en) * | 2005-11-21 | 2006-10-25 | 江苏高精机电装备有限公司 | Indexable stair rough boring cutter made of high-speed steel |
| CN201565620U (en) * | 2009-11-13 | 2010-09-01 | 天津市永恒电机厂 | Combined turning processing cutter |
| CN103447558A (en) * | 2012-06-01 | 2013-12-18 | 上海航天设备制造总厂 | Floating boring tool for machining of blind-hole thin-walled deep-hole parts |
| CN202894490U (en) * | 2012-11-21 | 2013-04-24 | 郑州市钻石精密制造有限公司 | Novel reamer knife back |
| CN204094162U (en) * | 2014-07-30 | 2015-01-14 | 常州西利合金工具有限公司 | A kind of high accuracy through hole cornish bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |