CN87205995U - Lathe tool used for processing gage and special shape surface - Google Patents
Lathe tool used for processing gage and special shape surface Download PDFInfo
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- CN87205995U CN87205995U CN 87205995 CN87205995U CN87205995U CN 87205995 U CN87205995 U CN 87205995U CN 87205995 CN87205995 CN 87205995 CN 87205995 U CN87205995 U CN 87205995U CN 87205995 U CN87205995 U CN 87205995U
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Abstract
The utility model discloses a lathe cutting tool used for processing thread gages, smooth gags and special shape surfaces. The lathe cutting tool used for processing thread gages, smooth gags and special shape surfaces adopts hard alloy or metal hot pressing ceramic cutting tool to process on engine lathes, precision lathes, digital control lathes or copying lathes. The precision can reach the six grades of the national standards (original precision is two grades), the smooth finish is Ra 0.4 to 0.2 (original smooth finish is more than 8), and the effect that a vehicle substitutes grinding is achieved. The equipment is simple, and the manufacturing and economic benefit is high. The lathe cutting tool used for processing thread gages, smooth gags and special shape surfaces comprises a cutter blade (1), a clamp plate (2), a fastening screw (3), a movable tool bar (4), etc.
Description
The present invention is a cutter of making external thread gauge, plain gauge and processing special-shaped face with the method for turning, and at engine lathe, fine turning lathe is used metal hot pressing sintex workhardness H on numerically controlled lathe or the copying lathe
RThe external thread gauge of the various metal materials of C38～68, plain gauge and have the part of special-shaped face.Precision can reach six grades of GBs (former GB fine grade), and surface roughness is R
a0.4～0.2(fineness ∨ is more than 8), reached the effect that replaces grinding and grinding with turning, production efficiency and economic benefit are higher.
As everyone knows, external thread gauge, plain gauge are that machine industry has a kind of important comprehensive test instrument of interchangeability in order to guarantee hole, axle and screwed part.Along with the high speed development of producing, require to produce as early as possible various qualified screw threads and plain gauge, to satisfy the continuous needs of new product processing.Yet past measurer industry is made the conventional method of external thread gauge:
This not only needs the more expensive internal and external screw thread grinding machine of price rough turn blank one heat treatment-finish turning-thread grinding-grinding, and needs long process time, general in, gadget factory is owing to lack the special screw thread grinding machine, thereby can't make external thread gauge.The regular screw threads grinding machine generally can only grinding angular thread gauge, for square tooth, trapezoidal thread gauge and square tooth, trapezoidal cone gauge or directly just be difficult to processing through bigger gauge (more than M120).To the grinding of the complicated quenched components consistings of some shape faces, also often low, cost is high because of efficient, even can not process and feel sorry.The material of regular turning tool is generally with carbon tool steel or high-speed steel, the former heatproof is below 250～300 ℃, the latter surpasses 500～600 ℃ and can not use, also be difficult to finish precision turning processing tasks with these cutter materials, also should not be used for cutted thread gauge, plain gauge certainly high-strength material.
The present invention be directed to the technical problem that exists at present domestic and international external thread gauge, plain gauge and special-shaped method for processing surface and the regular turning tool designs.Purpose be to realize a kind of can be with fine turning lathe, copying lathe or the numerically controlled lathe that general factory had, the higher turning technology generation of utilization ratio is replaced screw grinder, suit measures to local conditions, quickly and easily the new cutting-tool engineering scheme of machining screw gauge, plain gauge and special-shaped face.
The following description has realized this purpose preferably.
The cutter of one group of finish turning high-strength material measurer of the present invention or special-shaped face comprises blade (1), clamping plate (2), trip bolt (3), movable knife bar parts such as (4) is for different materials, different parts, as processing excircles, endoporus, taper or other special-shaped curved surface, common public affairs, inch screw thread, taper thread public, made in Great Britain, side's tooth, trapezoidal, zigzag taper thread or the like, the structure and material of cutter is slightly different.Thereby designed the cutter of one group of finish turning high-strength material, can satisfy the requirement of above-mentioned various processing tasks.
The material of blade (1) is according to workpiece material, and particularly the difference of hardness, intensity can be selected carbide alloy or hot-press cermet material for use.General hard alloy cutter, hardness reaches HRC87～91,850～1000 ℃ of heatproofs, cutting speed improves 4～10 times than high-speed steel, for general high-intensity material, can select H6, carbide chips such as 600 or 726 for use, the piece surface hardness that processes can reach HRC55～58 pair high-intensity hardened steel quenched and tempered steel, the materials such as cast iron of potassium steel and ultrahard, the blade (1) that can select for use AT6 type hot-press cermet blade to make.
The geometric angle of blade (1), and different, generally speaking, because carbide alloy or ceramic tip fragility are bigger, employing negative rake or anterior angle value are very little according to workpiece material, different processing request.For example: profiling cylindrical ceramic tip, anterior angle r are taken as-3 °.Carbide alloy or ceramic tip fragility are big, stretching resistance difference but resistance to pressure is good, and point of a knife bears pulling force during the blade positive rake angle, and the anterior angle of blade (1) is when negative, and point of a knife bears pressure, and tool stiffness is big like this, and the cutter section is big, is beneficial to heat transfer.Primary clearance α elects 3 ° as, can freely-movable when guaranteeing Tool in Cutting, reduce friction, and improve the piece surface smoothness, to pay a relief angle α 1 and elect 8 ° as, purpose also is can freely-movable when guaranteeing Tool in Cutting, reduces friction, and improves the piece surface smoothness.Cutting edge inclination is elected 9 ° as, and this also is the place that is different from regular turning tool.Usually positive cutting edge inclination only uses in planing tool, and selecting like this is to have considered that carbide alloy or ceramic tip fragility are bigger, a little less than the stretching resistance, adopt positive cutting edge inclination to be beneficial to the strength and stiffness that improve blade, with the durability of raising cutter.Nose radius R is taken as 0.5 millimeter, nose radius R is 2 millimeter generally speaking, point of a knife half can be greatly through bigger cutting speeds, cutter conducts heat, temperature can be hanged down during cutting, consider that carbide alloy or ceramic tip heat resistance are better, still can operate as normal 1200 ℃ the time as ceramic tip, cutter hardness can reach HRC93～96, wearing and tearing when using along with cutter, point of a knife half is through increasing gradually, and cutting is still favourable, and the blank dimension of blade (1) is 13 * 13 * 8(millimeter).
Blade (1) is twisted solid on knife bar (4) with clamping plate (2) by screw (3).Be beneficial to so at ordinary times and take off blade (1) and carry out sharpening or change blade, knife bar (2) and screw (3) can repeatedly use, and have saved knife bar and clamp material, have the knife bar (4) of blade (1), utilize universal fixturing to be fixed on the knife rest of lathe, improved work efficiency more than five times.
For turning quenching hardness HRC60～CrMnNo of 64 and the endoporus of ZGMnB and cylindrical, the 12CrNi3A of internal combustion engine pin carburizing hardness HRC62 and the GCr15 of bearing outside quenching hardness HRC62～64.This group lathe tool has all shown good cutting effect, and tool life improves more than 10 times than best carbide chip.For the part of some back finish turnings that need quench, and grinding machine can not grinding, has plenty of because of having omitted operation before quenching, and add the worker after needing to quench, and just can adopt this group lathe tool, carries out the processing of various necessity and add the worker after quenching.
Adopt cutter of the present invention, the thread part technology that turning external thread gauge or precision prescribed are very high on common fine turning lathe, has unique manufacturability, equipment is simple, technology is flexible, easy to operate, it is many to produce the screw thread kind, speed of production is fast, applied range, and economic benefit is remarkable especially.These cutters can be processed common public affairs, inch screw thread reliably, taper thread public, made in Great Britain, and square tooth is trapezoidal, saw-tooth thread and trapezoidal zigzag taper thread gauge, or the high precision screw part, and its specification is:
External screw thread gauge M10～M200 millimeter, 0.5～8 millimeter of pitch
Female thread ga(u)ge M20～M180 millimeter, 0.5～3 millimeter of pitch
Side's tooth, trapezoidal external screw thread gauge M10～M200 millimeter, 0.5～8 millimeter of pitch
Internal thread side's tooth, trapezoidal thread gauge M30～M200 millimeter, 0.5～8 millimeter of pitch
The precision of above external thread gauge can reach 6 grades of national standards (2 grades of former GBs) precision, and the former fineness ∨ of surface roughness Ra 0.4～0.2(is more than 8).
Major advantage of the present invention:
1. adopt cutter of the present invention, can process various precision components on the common fine turning lathe, reach the effect that turning replaces grinding, thereby improved production efficiency, reduced production cost at engine lathe;
2. cutter of the present invention has adopted carbide alloy or ceramic tip, and the durability of blade is big, and a kind of blade can be used for processing multiple part;
3. cutter of the present invention is except that can be used for processing the part of common material, and the hardened steel, quenched and tempered steel, potassium steel, the high chilled cast iron material that are suitable for especially high strength, high rigidity are processed;
4. cutter machining accuracy height of the present invention, fineness is good.As with this cutter cutted thread gauge, when common fine turning lathe leading screw extra fine grade, the product precision can reach former national standard fine grade, and fineness can reach ∨ more than 8;
5. equipment is simple, and technology is flexible, and is easy to operate.For example clamping cutter, part are very convenient on common fine turning lathe, and external thread gauge of finish turning only needs about 20 minutes, and product percent of pass is very high, and general qualification rate is all more than 98%.
Fig. 1 Fig. 2 shows two embodiment of the present invention
Fig. 1 is a billmpse tool schematic diagram of the present invention
Fig. 2 is an internal screw cutting tool schematic diagram of the present invention
A kind of profiling billmpse tool embodiment of the present invention:
Blade material is an AT6 hot pressing AL203-TiC ceramic tip, its specification is long * wide * thick be 13 * 13 * 8(millimeter).Structure is a last pressure type machinery clamping left avertence power, geometric angle: 45 ° of tool cutting edge angles, anterior angle-3 °, 3 ° of primary clearances, 8 ° of main negative relief angles, 9 ° of cutting edge inclinations, 0.5 millimeter of nose radius, 0.1 * 30 ° of negative chamfered edge.
Another internal screw cutting tool embodiment of the present invention:
Blade material also is an AT6 type hot-press cermet blade, and its specification is 16 * 16 * 4.5 millimeters (standard insert 1/2nd).Structure is mechanical clamping internal screw cutting tool.0 ° of geometric angle anterior angle, about 3～5 ° of primary clearance, about 2～3 ° of negative relief angle, to the metric thread nose angle be 60 ° ± 9 '.
Claims (3)
- The cutter of 1, turning manufactured gauge and special-shaped face, the shape, structure, geometric parameter etc. that it is characterized in that cutter is for different materials, different part and difference, generally speaking, blade [1] employing negative rake or anterior angle value are very little, for the outer circular knife of profiling, anterior angle r is taken as-3 ° of primary clearance a and is taken as 3 °, pay relief angle a1 and elect 8 ° as, cutting edge inclination is elected 9 ° as, and nose radius R is taken as 0.5 millimeter, for threading tool, about 0 ° of anterior angle, about 3 °～5 ° of primary clearance, about 2 °～3 ° of negative relief angle, to the metric thread nose angle be 60 ° ± 9 '.
- 2, according to the turning manufactured gauge of claim 1 and the cutter of special-shaped face, the material that it is characterized in that blade (1) is carbide alloy, ceramic material or the close material of filling a prescription.
- 3, according to the turning manufactured gauge of claim 1 and the cutter of special-shaped face, it is characterized in that blade (1) when using Hardmetal materials, its model is H6,600 or 726; When selecting ceramic material for use, its model is AT6 hot-press cermet material or the close material of other prescription.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205995 CN87205995U (en) | 1987-04-06 | 1987-04-06 | Lathe tool used for processing gage and special shape surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205995 CN87205995U (en) | 1987-04-06 | 1987-04-06 | Lathe tool used for processing gage and special shape surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87205995U true CN87205995U (en) | 1988-12-21 |
Family
ID=4821654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87205995 Withdrawn CN87205995U (en) | 1987-04-06 | 1987-04-06 | Lathe tool used for processing gage and special shape surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87205995U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7313991B2 (en) | 2001-08-28 | 2008-01-01 | Kennametal Inc. | Cutting insert and use thereof |
| CN103192101A (en) * | 2013-04-11 | 2013-07-10 | 南车眉山车辆有限公司 | Special tool and technology for processing rail way wheel hole |
| CN111185629A (en) * | 2020-01-13 | 2020-05-22 | 湖南泰嘉新材料科技股份有限公司 | Tooth of band saw blade and band saw blade |
| CN115722737A (en) * | 2022-10-28 | 2023-03-03 | 齐齐哈尔建华机械有限公司 | Machining method of hardness precise internal thread |
-
1987
- 1987-04-06 CN CN 87205995 patent/CN87205995U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7313991B2 (en) | 2001-08-28 | 2008-01-01 | Kennametal Inc. | Cutting insert and use thereof |
| CN103192101A (en) * | 2013-04-11 | 2013-07-10 | 南车眉山车辆有限公司 | Special tool and technology for processing rail way wheel hole |
| CN103192101B (en) * | 2013-04-11 | 2015-08-12 | 南车眉山车辆有限公司 | A kind of railway wheel hole machined dedicated tool and processing technology |
| CN111185629A (en) * | 2020-01-13 | 2020-05-22 | 湖南泰嘉新材料科技股份有限公司 | Tooth of band saw blade and band saw blade |
| CN115722737A (en) * | 2022-10-28 | 2023-03-03 | 齐齐哈尔建华机械有限公司 | Machining method of hardness precise internal thread |
| CN115722737B (en) * | 2022-10-28 | 2024-04-09 | 齐齐哈尔建华机械有限公司 | Machining method of precise hardness internal thread |
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| C14 | Grant of patent or utility model | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |