CN201684931U - Combined lathe tool for trapezoidal inner threads - Google Patents
Combined lathe tool for trapezoidal inner threads Download PDFInfo
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- CN201684931U CN201684931U CN2009202585654U CN200920258565U CN201684931U CN 201684931 U CN201684931 U CN 201684931U CN 2009202585654 U CN2009202585654 U CN 2009202585654U CN 200920258565 U CN200920258565 U CN 200920258565U CN 201684931 U CN201684931 U CN 201684931U
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- knife bar
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Abstract
The utility model discloses a combined lathe tool used for processing trapezoidal inner threads, which comprises a toolbar (1), a left forming cutter (2), a right forming cutter (3), a grooving cutter (4) and a forcing screw (5). The toolbar is provided with a tool setting hole, the left forming cutter, the right forming cutter and the grooving cutter are mounted in the tool setting hole on the toolbar side by side and fastened via the forcing screw (5). The combined lathe tool can complete multi-cutter turning of threads during a one-step tool advance process, reduces tool feeding times when cutting the threads, increases working efficiency more than twice to three times compared with a common cutter, can reach about three levels of thread precision, simultaneously can meet requirements of trapezoidal thread processing precision, is low in roughness of thread processing surfaces and higher in processing efficiency, and has the advantages of simple structure, convenient detachment, high hardness, better anti-impact roughness and long service life.
Description
Technical field
The utility model belongs to the metal working tool technical field, and what relate generally to is a kind of combined type trapezoidal internal thread lathe tool.
Background technology
At present, when adopting single thread cutter turning trapezoidal internal thread, need determine the feed number of times according to the nominal diameter of trapezoidal internal thread and the difference of pitch, repeatedly cut the final shaping that could realize screw thread, because each cutting all needs to finish radially feed, axial feed cutting thread, steps such as reverse withdrawing, according to this repeatedly, thereby the feed number of times is many more, and the time of machining screw is just long more, and production efficiency is also just low more.Simultaneously, during single thread cutter turning trapezoidal thread, owing to be to adopt a blade to cut, though the load of point of a knife is reduced, accuracy of thread and roughness are more general.
Summary of the invention
The purpose of this utility model is to propose a kind of combined type trapezoidal internal thread lathe tool.Can finish the multitool turning of screw thread in a feed process, the feed number of times when reducing screw cutting is enhanced productivity.Can also satisfy simultaneously the needs of trapezoidal thread machining accuracy.
The utility model realizes that the technical scheme that above-mentioned purpose is taked is: it mainly is made up of knife bar, left forming tool, right forming tool, grooving tool, housing screw, on knife bar, has rectangle dress tool bore, left side forming tool, right forming tool and grooving tool are installed in the dress tool bore on the knife bar side by side, are fastened on the knife bar by housing screw.
The utility model adopts combining structure, can in a feed process, finish the multitool turning of screw thread, feed number of times when reducing screw cutting, can improve work efficiency more than 2～3 times than universal cutter, accuracy of thread can reach about 3 grades, can be particularly suitable for the processing of diameter, coarse pitch trapezoidal internal thread guaranteeing to improve the working (machining) efficiency of trapezoidal internal thread greatly under the prerequisite of accuracy of screw machining.Can also satisfy simultaneously the needs of trapezoidal thread machining accuracy, the screw thread machined surface roughness is little, and working (machining) efficiency is higher.Have simple in structure, convenient disassembly, hardness height, toughness better, the characteristics of long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the upward view of Fig. 1.。
Among the figure: 1. knife bar, 2. left forming tool, 3. right forming tool, 4. grooving tool, 5. housing screw.
The specific embodiment
In conjunction with the accompanying drawings, it is as follows to provide specific embodiment of the utility model:
As shown in Figure 1, present embodiment is made up of knife bar 1, left forming tool 2, right forming tool 3, grooving tool 4, housing screw 5.Knife bar 1 is the square shape, for improving the rigidity of cutter, reduces the vibration in the process, improve working (machining) efficiency, knife bar adopts high-quality 45 steel material and through modifier treatment, hardness requires to be HRC26-32, also can adopt 40Cr as the knife bar material, can further improve the cutter rigidity.Cutter material is W18Cr4V, and hardness is about HRC63-66, for improving the service life of cutter, also can adopt the better W6MO5Cr4V2 high-speed steel of red hardness and wearability, to reduce the sharpening number of times, enhances productivity.Be processed with at position, the knife bar 1 front end upper right corner certain-length 14 arc grooves (as shown in Figure 2), it mainly acts on is the continuity that reduces cutting vibration.Be processed with a plane (as shown in Figure 3) on knife bar 1 right side, purpose is to prevent that knife bar from bumping the workpiece hole wall, avoids producing machining interference when the cutting internal thread.Be processed with a rectangle knife holder slot that connects on knife bar 1, for improving the installation accuracy of cutter on knife bar, knife holder slot adopts the mode machine-shaping of digital control wire-electrode cutting on the knife bar, and the dimensional accuracy error can be controlled in the 0.1mm.Grooving tool 4, right forming tool 3, left forming tool 2 are installed in this knife holder slot from left to right successively, after the correction, by housing screw 5 left forming tool 2, right forming tool 3, grooving tool 4 are fastened on the knife bar 1, housing screw 5 adopts the mode that is threaded to be assemblied in knife bar 1 leftmost side, left forming tool 2, right forming tool 3, grooving tool 4 can be fastened on the knife bar 1 by screwing housing screw 5, when needing the dismounting cutter, only need unclamp housing screw 5 gets final product, therefore the dismounting of cutter is very convenient, is fit to very much the highly-efficient processing of trapezoidal internal thread.Each cutter all will be shaped according to the model sharpening, to guarantee the shape of cutter, for improving working (machining) efficiency, and guarantee accuracy of screw machining, grooving tool 2 concrete geometric parameters are: anterior angle γ=15 °, relief angle α=8 °, 13 ' front clearance α left side, the front clearance α right side=1 °=4 °; Forming tool 3,4 concrete geometric parameters are: anterior angle γ=12 °, and right side edge clearance angle α=4 °, left side edge clearance angle α=8 °, forming angle are 30 °
During use, need guarantee that on lathe cutter saddle each cutter point of a knife aligns workpiece centre and installs during mounting cutter, just can satisfy the requirement on machining accuracy of screw thread.During cutting, earlier drive thread groove by the forefront necking tool, thereby cut away first working procedure allowance, the turning of going forward one by one successively of left then forming tool 2, right forming tool 3 can realize once therefore trapezoidal internal thread turning moulding can be improved work efficiency more than 2～3 times than universal cutter, accuracy of thread can reach about 3 grades, thereby can be particularly suitable for the processing of diameter, coarse pitch trapezoidal internal thread guaranteeing to improve the working (machining) efficiency of trapezoidal internal thread greatly under the prerequisite of accuracy of screw machining.Because the screw thread both sides are shaped by two cutter turning respectively, and multiple cut reduces back cutter allowance when turning successively, thereby left and right forming tool all can adopt bigger anterior angle, thereby make cutting brisk, trapezoidal thread thread form precision is good, the screw thread machined surface roughness is little, and working (machining) efficiency is higher.
Claims (4)
1. combined type trapezoidal internal thread lathe tool, it is characterized in that: it is made up of knife bar (1), left forming tool (2), right forming tool (3), grooving tool (4), housing screw (5), have the dress tool bore on the knife bar, left forming tool, right forming tool, grooving tool are installed in side by side in the dress tool bore on the knife bar and are fastened on the knife bar (1) by housing screw (5).
2. combined type trapezoidal internal thread lathe tool according to claim 1 is characterized in that: described knife bar (1) is the square shape.
3. combined type trapezoidal internal thread lathe tool according to claim 1 and 2 is characterized in that: be processed with an arc groove at position, described knife bar (1) the front end upper right corner.
4. combined type trapezoidal internal thread lathe tool according to claim 1 and 2 is characterized in that: be processed with a plane on described knife bar (1) right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202585654U CN201684931U (en) | 2009-11-27 | 2009-11-27 | Combined lathe tool for trapezoidal inner threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202585654U CN201684931U (en) | 2009-11-27 | 2009-11-27 | Combined lathe tool for trapezoidal inner threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201684931U true CN201684931U (en) | 2010-12-29 |
Family
ID=43373221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202585654U Expired - Fee Related CN201684931U (en) | 2009-11-27 | 2009-11-27 | Combined lathe tool for trapezoidal inner threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201684931U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601401A (en) * | 2012-03-16 | 2012-07-25 | 华北水利水电学院 | Combined turning tool for cutting rectangular thread of elastic material |
| CN102615362A (en) * | 2012-04-20 | 2012-08-01 | 德阳宝特机械设备有限责任公司 | Internal screw thread processing method |
| CN104400372A (en) * | 2014-10-31 | 2015-03-11 | 河南平高电气股份有限公司 | Arc rear angle forming blade machining method |
| CN105479270A (en) * | 2016-02-17 | 2016-04-13 | 哈尔滨理工大学 | Experimental method for testing cutting property of tools for turning large-pitch thread |
| CN106001643A (en) * | 2016-05-27 | 2016-10-12 | 十堰东森汽车密封件有限公司 | Device for turning machining of threads and machining method |
| CN107433340A (en) * | 2016-05-29 | 2017-12-05 | 佳木斯骥驰拖拉机制造有限公司 | High-efficient trapezoidal internal thread combines lathe tool |
| CN108453272A (en) * | 2018-05-15 | 2018-08-28 | 杭州世宝汽车方向机有限公司 | Combined type vehicle hole grooving cutter |
-
2009
- 2009-11-27 CN CN2009202585654U patent/CN201684931U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601401A (en) * | 2012-03-16 | 2012-07-25 | 华北水利水电学院 | Combined turning tool for cutting rectangular thread of elastic material |
| CN102601401B (en) * | 2012-03-16 | 2014-10-08 | 华北水利水电学院 | Combined turning tool for cutting rectangular thread of elastic material |
| CN102615362A (en) * | 2012-04-20 | 2012-08-01 | 德阳宝特机械设备有限责任公司 | Internal screw thread processing method |
| CN102615362B (en) * | 2012-04-20 | 2014-06-25 | 德阳宝特机械设备有限责任公司 | Internal screw thread processing method |
| CN104400372A (en) * | 2014-10-31 | 2015-03-11 | 河南平高电气股份有限公司 | Arc rear angle forming blade machining method |
| CN105479270A (en) * | 2016-02-17 | 2016-04-13 | 哈尔滨理工大学 | Experimental method for testing cutting property of tools for turning large-pitch thread |
| CN105479270B (en) * | 2016-02-17 | 2017-06-30 | 哈尔滨理工大学 | A kind of experimental technique for testing turning steep-pitch thread Tool in Cutting performance |
| CN106001643A (en) * | 2016-05-27 | 2016-10-12 | 十堰东森汽车密封件有限公司 | Device for turning machining of threads and machining method |
| CN107433340A (en) * | 2016-05-29 | 2017-12-05 | 佳木斯骥驰拖拉机制造有限公司 | High-efficient trapezoidal internal thread combines lathe tool |
| CN108453272A (en) * | 2018-05-15 | 2018-08-28 | 杭州世宝汽车方向机有限公司 | Combined type vehicle hole grooving cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101229 Termination date: 20111127 |