CN206169362U - Drill bit in processing piston pin circular arc hole - Google Patents
Drill bit in processing piston pin circular arc hole Download PDFInfo
- Publication number
- CN206169362U CN206169362U CN201621265436.4U CN201621265436U CN206169362U CN 206169362 U CN206169362 U CN 206169362U CN 201621265436 U CN201621265436 U CN 201621265436U CN 206169362 U CN206169362 U CN 206169362U
- Authority
- CN
- China
- Prior art keywords
- circular arc
- drill bit
- section
- piston pin
- changeover portion
- 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.)
- Expired - Fee Related
Links
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model relates to a drill bit in processing piston pin circular arc hole has the drill bit body, and the both ends of drill bit body all are equipped with the tool bit, the tool bit has guiding section, changeover portion, circular arc cutting section and rear in proper order, is equipped with a circular arc cutting edge to changeover portion, circular arc cutting section and rear direction from guiding section, guiding section and drill bit body the central axis parallel arrangement, the changeover portion is 30 slope settings with drill bit body the central axis, and the rear is 65 with drill bit body the central axis and inclines to set up, the the arc RADIUS of circular arc cutting section is 3mm, the utility model discloses process out promptly earlier the centre bore than traditional processing method and carry out abrasive machining again and go out its symmetry of circular arc section and will get well a lot, it is accurate pleasing to the eye, mainly use in the middle of the circular arc section in piston pin circular arc hole is processed.
Description
Technical field
This utility model is related to machine mechanical equipment technical field, especially a kind of brill of machining piston pin circular hole
Head.
Background technology
Generally when machining piston pin circular hole, device to hole port is needed to carry out grinding circular arc after hole is drilled,
But because piston pin circular hole is processed in the side wall cambered surface of piston pin, its grinding symmetry is difficult to hold, grinding
Difficulty is big, therefore it is necessary to design a kind of specific circular arc port processing drill.
The content of the invention
The purpose of this utility model seeks to solve to be difficult to grind by traditional processing instrument in machining piston pin circular hole
Cut symmetrical problem, there is provided a kind of simple structure, the good special drill bit for machining piston pin circular hole of processing effect.
Concrete scheme of the present utility model is:A kind of drill bit of machining piston pin circular hole, with drill body, drill bit sheet
The two ends of body are equipped with cutter head, and the cutter head has successively boot segment, changeover portion, circular arc segment of cutting and a rear, bootstrap section to
Changeover portion, circular arc segment of cutting and rear direction are provided with an arc edge, and the boot segment is put down with drill body central axis
Row is arranged, and the changeover portion is obliquely installed with drill body central axis in 30 °, and rear is in 65 ° with drill body central axis
It is obliquely installed, the arc radius of the circular arc segment of cutting are 3mm.
Operation principle of the present utility model:This utility model is positioned by the boot segment on drill body, changeover portion, then
The arc section of the circular hole on piston pin arc surface is cut through the arc edge of circular arc segment of cutting, arc section is processed
Afterwards, then the center drill bit of changing inwards face gets out centre bore, this first processes centre bore and enters again than traditional processing method
It is well many that row grinding goes out arc section its symmetry, accurate attractive in appearance.
This utility model has the advantages that:
1st, by this new drill bit, the arc section for solving original piston pin circular hole is difficult to be ground symmetrical difficulty
Topic;
2nd, working (machining) efficiency is improve, solves original grinding arc section roughness out bad to lower road buffer
Sequence increases the problem of difficulty;
3rd, the symmetry and aesthetic property of arc section are improve, it is ensured that product quality.
Description of the drawings
Fig. 1 is that piston pin master cuts open structural representation;
Fig. 2 is piston pin cross section structure schematic diagram;
Fig. 3 is this utility model structural representation.
In figure:1-arc section, 2-piston pin centre bore, 3-piston pin, 4-boot segment, 5-changeover portion, 6-circular arc
Segment of cutting, 7-rear, 8-drill body, 9-arc edge.
Specific embodiment
Referring to Fig. 1-Fig. 3, this utility model is a kind of drill bit of machining piston pin circular hole, with drill body 8, drill bit
The two ends of body are equipped with cutter head, and the cutter head has successively boot segment 4, changeover portion 5, circular arc segment of cutting 6 and rear 7, draws certainly
Lead section and be provided with an arc edge 9, the boot segment and drill body center to changeover portion, circular arc segment of cutting and rear direction
Diameter parallel is arranged, and the changeover portion is obliquely installed with drill body central axis in 30 °, rear and drill body central axis
It is obliquely installed in 65 °, the arc radius of the circular arc segment of cutting are 3mm.
Operation principle of the present utility model:This utility model is positioned by the boot segment on drill body, changeover portion, then
The arc section 1 of the circular hole on the arc surface of piston pin 3 is cut through the arc edge of circular arc segment of cutting, arc section is processed
After good, then the center drill bit of changing inwards face gets out centre bore, this first processes centre bore again than traditional processing method
Carrying out grinding, to go out arc section its symmetry well a lot, accurate attractive in appearance.
This utility model has the advantages that:
1st, by this new drill bit, the arc section for solving original piston pin circular hole is difficult to be ground symmetrical difficulty
Topic;
2nd, working (machining) efficiency is improve, solves original grinding arc section roughness out bad to lower road buffer
Sequence increases the problem of difficulty;
3rd, the symmetry and aesthetic property of arc section are improve, it is ensured that product quality.
Claims (1)
1. a kind of drill bit of machining piston pin circular hole, with drill body, the two ends of drill body are equipped with cutter head, its feature
It is:The cutter head has successively boot segment, changeover portion, circular arc segment of cutting and rear, and bootstrap section to changeover portion, circular arc cut
Section and rear direction are provided with an arc edge, and the boot segment is arranged with drill body centerline axis parallel, the transition
Section is obliquely installed with drill body central axis in 30 °, and rear is obliquely installed with drill body central axis in 65 °, the circle
The arc radius of arc segment of cutting are 3mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621265436.4U CN206169362U (en) | 2016-11-24 | 2016-11-24 | Drill bit in processing piston pin circular arc hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621265436.4U CN206169362U (en) | 2016-11-24 | 2016-11-24 | Drill bit in processing piston pin circular arc hole |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206169362U true CN206169362U (en) | 2017-05-17 |
Family
ID=58685834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201621265436.4U Expired - Fee Related CN206169362U (en) | 2016-11-24 | 2016-11-24 | Drill bit in processing piston pin circular arc hole |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206169362U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107971529A (en) * | 2017-11-24 | 2018-05-01 | 肖亦萍 | A kind of computer case drilled hole polishing all-in-one machine |
-
2016
- 2016-11-24 CN CN201621265436.4U patent/CN206169362U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107971529A (en) * | 2017-11-24 | 2018-05-01 | 肖亦萍 | A kind of computer case drilled hole polishing all-in-one machine |
CN107971529B (en) * | 2017-11-24 | 2019-04-05 | 肖亦萍 | A kind of computer case drilled hole polishing all-in-one machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201862792U (en) | Grooving cutter | |
CN206169362U (en) | Drill bit in processing piston pin circular arc hole | |
CN106216718A (en) | A kind of deep borehole double body combination pushes away boring cutter body device | |
CN204234845U (en) | A kind of three sword aluminium milling cutters | |
CN201140290Y (en) | Normal hole cutter | |
CN203356705U (en) | Inner hole slotting tool | |
CN203235979U (en) | Boring tool for completing hole rough machining and hole finish machining once | |
CN203565938U (en) | Taper hole forming cutter | |
CN204263105U (en) | Residual centre drill remover | |
CN103658775A (en) | Blind hole combined drill reamer | |
CN202097428U (en) | Orifice chamfer boring tool device for drilling machine | |
CN202655694U (en) | E2-type twist drill and straight fluted drill with cutting angle | |
CN209598274U (en) | A kind of deep hole machining bta deep hole drilling | |
CN208495879U (en) | A kind of step drill being exclusively used on plastic bottle mould of plastic | |
CN202480160U (en) | Fish-scale drill for processing aramid composite | |
CN202162426U (en) | Drilling and tapping integrated composite screw tap | |
CN206009864U (en) | A kind of deep borehole double body pushes away boring cutter body | |
CN206122776U (en) | Three swords sword for aluminium | |
CN201728378U (en) | Tool shank with high degree of balance | |
CN205085443U (en) | Special PCD cutter of processing through -hole and downthehole milling flutes | |
CN202667740U (en) | U-drill mechanism | |
CN108098028A (en) | A kind of drill bit of machining piston pin circular hole | |
CN203649484U (en) | Forming flat drill | |
CN203738045U (en) | Pulling and boring cutter for machining stainless steel and high-nickel alloy material | |
CN203390316U (en) | Combined rimer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170517 Termination date: 20191124 |