CN202741845U - Diamond straight shank forming reamer for processing step oil holes of gear pump - Google Patents

Diamond straight shank forming reamer for processing step oil holes of gear pump Download PDF

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Publication number
CN202741845U
CN202741845U CN 201220261651 CN201220261651U CN202741845U CN 202741845 U CN202741845 U CN 202741845U CN 201220261651 CN201220261651 CN 201220261651 CN 201220261651 U CN201220261651 U CN 201220261651U CN 202741845 U CN202741845 U CN 202741845U
Authority
CN
China
Prior art keywords
cutting tip
reamer
diamond
shank
cutting
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
Application number
CN 201220261651
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Chinese (zh)
Inventor
樊保龙
张凤鸣
朱旭
张嗣静
陈功福
张伟峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Diamond Precision Manufacturing Co Ltd
Original Assignee
Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Diamond Precision Manufacturing Co Ltd filed Critical Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority to CN 201220261651 priority Critical patent/CN202741845U/en
Application granted granted Critical
Publication of CN202741845U publication Critical patent/CN202741845U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a diamond straight shank forming reamer for processing step oil holes of a gear pump. The diamond straight shank forming reamer comprises a reamer body, wherein the front end of the reamer body is sequentially provided with a front section cutting part, a middle cutting part and a back section cutting part from front to back, the rotary radius of the front section cutting part is smaller than that of the middle section cutting part, and the rotary radius of the middle section cutting part is smaller than that of the back section cutting part. The diamond straight shank forming reamer has the advantages that the design is novel, the structure is simple, a reamer blade is a glomerocryst diamond composite blade, the reamer body is made of hard alloy YG8 and adopts a straight-shank reamer shank, the loading and the clamping precision of the reamer shank is high, the mounting and the dismounting are convenient, and high speed is realized. The end surface and the conical shank arranged at the shank part of the reamer are major connected components, and the axial and radial connection precision of a cutter tool is ensured through the surface roughness of the end surface and the shank part. When the diamond straight shank forming reamer is used, forming holes can be reamed in one step, then, a screw tap is used for tapping screw threads, and the time for processing holes and chamfers is shortened.

Description

The diamond staight shank forming reamer that is used for machining gears pump ladder oilhole
Technical field
The utility model belongs to the Machining Technology field, relates in particular to a kind of diamond staight shank forming reamer for machining gears pump ladder oilhole.
Background technology
At present, the step of the ladder oilhole of machining gears pump may further comprise the steps: 1, use φ 20 face milling cutters milling flats; The hole of 2, using φ 9 milling cutters to mill φ 9; 3, use φ 11.4 bit drills thread Pilot holes; 4, use φ 14 milling cutters to mill φ 14 holes; 5, screw tap tapping; 6, use φ 17 bit drills aperture chamferings.Adopt above-mentioned processing technology loaded down with trivial details, production efficiency is low, and machining accuracy is poor.
The utility model content
The utility model is in order to solve weak point of the prior art, provides that a kind of machining accuracy is high, production efficiency is high, the diamond staight shank forming reamer that is used for machining gears pump ladder oilhole that can disposable machine-shaping.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: the diamond staight shank forming reamer that is used for machining gears pump ladder oilhole, comprise cutter hub, the cutter hub front end is provided with leading portion cutting tip, stage casing cutting tip and back segment cutting tip from front to back successively, the radius of gyration of leading portion cutting tip is less than the radius of gyration of stage casing cutting tip, and the radius of gyration of stage casing cutting tip is less than the radius of gyration of back segment cutting tip.
Described leading portion cutting tip, stage casing cutting tip and back segment cutting tip comprise respectively two symmetrically arranged blades, and blade is the polycrystalline diamond material, and the blade front end of stage casing cutting tip and back segment cutting tip is pre-small post-large pyramidal structure.
The chip area that connects before and after the surface of leading portion cutting tip, stage casing cutting tip and back segment cutting tip is axially arranged with, chip area rear portion arc transition.
The relief angle of described blade cut sword is 15 °, forms the arc edge land of 0.3-0.5mm.
Adopt technique scheme, have following technique effect:
1, leading portion cutting tip, stage casing cutting tip and back segment cutting tip are processed respectively the hole in corresponding aperture, and can carry out chamfering, thus disposable machine-shaping shoulder hole.
2, the blade front end of stage casing cutting tip and back segment cutting tip is pre-small post-large pyramidal structure, is used for shoulder hole is carried out chamfering.
3, chip area plays the effect of good chip removal.
4, the described parameter of blade plays guiding and also participates in cutting, guarantees the effect of finished surface smoothness.
The utility model is novel in design, simple in structure, blade is composite polycrystal-diamond, and cutter hub is carbide alloy YG 8, and cutter hub adopts the staight shank handle of a knife, and the handle of a knife clamping precision is high, and is easy to loading and unloading, and is quick.The taper shank of reamer shank and end face are the main positions that connects, the surface roughness of end face and taper shank guarantee cutter shaft to radially connection precision.Use the utility model can once cut with scissors out forming hole, use again the screw tap tapping, shortened the time of machining hole and chamfering.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that enlarged drawing is looked on the left side of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, diamond staight shank forming reamer for machining gears pump ladder oilhole of the present utility model, comprise cutter hub 1, cutter hub 1 front end is provided with leading portion cutting tip 2, stage casing cutting tip 2 and back segment cutting tip 4 from front to back successively, the radius of gyration of leading portion cutting tip 2 is less than the radius of gyration of stage casing cutting tip 3, and the radius of gyration of stage casing cutting tip 3 is less than the radius of gyration of back segment cutting tip 4.
Leading portion cutting tip 2, stage casing cutting tip 3 and back segment cutting tip 4 comprise respectively two symmetrically arranged blades 5, blade 5 is the polycrystalline diamond material, blade 5 front ends of stage casing cutting tip 3 and back segment cutting tip 4 are pre-small post-large pyramidal structure, and this structure is used for chamfering.
The chip area 6 that connects before and after the surface of leading portion cutting tip 2, stage casing cutting tip 3 and back segment cutting tip 4 is axially arranged with, chip area 6 rear portion arc transition.
The relief angle A of blade 5 cutting edges is 15 °, forms the long arc edge land L of 0.3-0.5mm.
Blade 5 of the present utility model is composite polycrystal-diamond, and cutter hub 1 is carbide alloy YG 8, polycrystalline diamond (PCD) composite sheet is that diamond particles adds metal agent, forms with the compacting of hard alloy substrate high temperature.Top one deck is diamond layer, and the below is hard alloy substrate.Blade 5 is processed into the geometry that satisfies the demands through methods such as grinding, line cutting processing.3 kinds of 6 polycrystalline diamond blades 5 altogether.
The material of cutter hub 1 is carbide alloy YG 8, is processed into the cutter groove that band is useful on welding blade 5 through methods such as grinding, line cutting processing, satisfies how much cutter hubs of surface roughness.
Polycrystalline diamond blade 5 adopts vacuum brazings to be welded on the YG8 cutter hub 1, passes through blade 5 sharpenings again, and the angle grinding-shaping detects, and wholely cutting performance is detected the finished product warehouse-in.

Claims (4)

1. the diamond staight shank forming reamer that is used for machining gears pump ladder oilhole, it is characterized in that: comprise cutter hub, the cutter hub front end is provided with leading portion cutting tip, stage casing cutting tip and back segment cutting tip from front to back successively, the radius of gyration of leading portion cutting tip is less than the radius of gyration of stage casing cutting tip, and the radius of gyration of stage casing cutting tip is less than the radius of gyration of back segment cutting tip.
2. the diamond staight shank forming reamer for machining gears pump ladder oilhole according to claim 1, it is characterized in that: described leading portion cutting tip, stage casing cutting tip and back segment cutting tip comprise respectively two symmetrically arranged blades, blade is the polycrystalline diamond material, and the blade front end of stage casing cutting tip and back segment cutting tip is pre-small post-large pyramidal structure.
3. the diamond staight shank forming reamer for machining gears pump ladder oilhole according to claim 1 and 2, it is characterized in that: the chip area that connects before and after the surface of leading portion cutting tip, stage casing cutting tip and back segment cutting tip is axially arranged with, chip area rear portion arc transition.
4. the diamond staight shank forming reamer for machining gears pump ladder oilhole according to claim 3, it is characterized in that: the relief angle of described blade cut sword is 15 °, forms the arc edge land of 0.3-0.5mm.
CN 201220261651 2012-06-05 2012-06-05 Diamond straight shank forming reamer for processing step oil holes of gear pump Expired - Fee Related CN202741845U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220261651 CN202741845U (en) 2012-06-05 2012-06-05 Diamond straight shank forming reamer for processing step oil holes of gear pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220261651 CN202741845U (en) 2012-06-05 2012-06-05 Diamond straight shank forming reamer for processing step oil holes of gear pump

Publications (1)

Publication Number Publication Date
CN202741845U true CN202741845U (en) 2013-02-20

Family

ID=47701293

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220261651 Expired - Fee Related CN202741845U (en) 2012-06-05 2012-06-05 Diamond straight shank forming reamer for processing step oil holes of gear pump

Country Status (1)

Country Link
CN (1) CN202741845U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103692020A (en) * 2013-12-07 2014-04-02 安徽博一流体传动股份有限公司 Three-step reamer for pilot valve sleeve
CN104439315A (en) * 2013-09-13 2015-03-25 上海三电贝洱汽车空调有限公司 Compound tool for holes
CN105081469A (en) * 2015-08-13 2015-11-25 无锡国宏硬质合金模具刃具有限公司 PCD molding reamer
CN105081431A (en) * 2015-08-13 2015-11-25 无锡国宏硬质合金模具刃具有限公司 PCD formed milling cutter
CN107790820A (en) * 2017-11-17 2018-03-13 中山市园丰精密刃具有限公司 Tube handle holes of golf head forming reamer
CN111408746A (en) * 2020-05-18 2020-07-14 襄阳顺裕铸造有限公司 Multi-station PCD forming cutter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439315A (en) * 2013-09-13 2015-03-25 上海三电贝洱汽车空调有限公司 Compound tool for holes
CN103692020A (en) * 2013-12-07 2014-04-02 安徽博一流体传动股份有限公司 Three-step reamer for pilot valve sleeve
CN105081469A (en) * 2015-08-13 2015-11-25 无锡国宏硬质合金模具刃具有限公司 PCD molding reamer
CN105081431A (en) * 2015-08-13 2015-11-25 无锡国宏硬质合金模具刃具有限公司 PCD formed milling cutter
CN105081431B (en) * 2015-08-13 2018-05-04 无锡国宏硬质合金模具刃具有限公司 PCD profile milling cutters
CN107790820A (en) * 2017-11-17 2018-03-13 中山市园丰精密刃具有限公司 Tube handle holes of golf head forming reamer
CN111408746A (en) * 2020-05-18 2020-07-14 襄阳顺裕铸造有限公司 Multi-station PCD forming cutter

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130220

Termination date: 20130605