CN203900571U - Inner-cooling lengthened spade drill with tool bit replaceable - Google Patents
Inner-cooling lengthened spade drill with tool bit replaceable Download PDFInfo
- Publication number
- CN203900571U CN203900571U CN201420325037.7U CN201420325037U CN203900571U CN 203900571 U CN203900571 U CN 203900571U CN 201420325037 U CN201420325037 U CN 201420325037U CN 203900571 U CN203900571 U CN 203900571U
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- China
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- shovel
- knife bar
- spade drill
- bores
- machining
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- Expired - Fee Related
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Abstract
The utility model relates to an inner-cooling lengthened spade drill with a tool bit replaceable. The inner-cooling lengthened spade drill with the tool bit replaceable comprises a spade drill tool bar and a spade drill blade. The spade drill blade is connected with the spade drill tool bar through a specific screw in a fastening mode, an inner-cooling hole is machined in the center of the spade drill tool bar, two chip removal straight grooves are symmetrically formed in the surface of the spade drill tool bar in the opening direction by 120 degrees, and two end inner-cooling holes are further symmetrically machined in the cutting end of the spade drill tool bar and allow cooling liquid to be discharged in time to promote the drill bit to be cooled in time. The problem that inner-cooling holes of a lengthened spade drill rod are difficult to machine is solved; compared with a traditional method that a deep hole drill is used for machining deep holes, the advanced process method that the holes are drilled in a segmented mode and then welded and the holes are made through after welding is carried out is adopted, because of the machining method, machining cost is reduced, the spade drill is not restricted by machining conditions, and common devices and common twist drills can be used for machining; machining procedures are reduced, machining duration is shortened, machining cost is lowered, and economic benefits are increased.
Description
Technical field
The utility model relates to a kind of drilling cutters, particularly relates to a kind of interior cold interchangeable cutter head and lengthens shovel brill.
Background technology
Hole processing occupies significant proportion in whole machining, and when drilling deep hole, chip removal, efficiency, service life are key issues.For a long time, fluted drill is as the main cutting tools for cutting of hole processing, be widely used always, but due to structural defect, cause drilling quality and production efficiency to be subject to very large impact, particularly during deep hole processing, be subject to the appearance bits of spiral bit and the impact of passage, chip removal and cooling and lubricating continuously, so must repeatedly carry out chip removal with lubricated, and increased than the non-cutting time of the many manyfolds of front described drill bit, machining condition worsens, cause drill bit burn, to making working (machining) efficiency low, cutter life is low, and hole dimension is defective, hole coaxiality deviation is larger, so batch production is not suitable for using fluted drill deep hole processing.
The drill bit using in mechanical process at present, when deep hole processing, there is certain shortcoming and defect, be in particular in: 1., chip removal is bad, cooling effect is bad, burn drill bit, working (machining) efficiency is low, processing cost is high, 2., the deep hole processing requirement that do not reach product parts precision, 3., lengthen in cold drill bit, interior cold hole processing difficulties.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, cuts down finished cost, and enhances productivity, and the Product Precision processed is high, quality good, cost is low, thereby interior cold interchangeable cutter head that can enterprise economic benefit lengthens shovel, bores.
The purpose of this utility model is achieved in that this interior cold interchangeable cutter head lengthens shovel brill and comprises that shovel bores knife bar and shovel drill blade, described shovel drill blade bores knife bar by screw special and shovel and is fastenedly connected, described shovel bores knife bar center and is processed with interior cold hole, described shovel brill knife bar surface opening direction is 120 ° of symmetries and has two chip removal straight troughs, and the cutting end of described shovel brill knife bar is also symmetrily processed with Nei Leng hole, two ends and can discharges and impel drill bit to lower the temperature in time in time for cooling fluid.
The length that described shovel bores knife bar surpasses one meter, and segmental machining when shovel bores knife bar processing, is finally welded into integral body, to treat following process.
Above described shovel drill blade, with two symmetrical locating holes, for shoveling, bore knife bar and shovel being connected of drill blade, on the twolip of shovel drill blade symmetry, be provided with a plurality of chip-breakers, described a plurality of chip-breaker is in the interlaced distribution of circumferencial direction, and the end of shovel drill blade bores knife bar and shovels the location between drill blade for shoveling with positioning spline.
The utlity model has following advantage and good effect:
1, the utility model is for lengthening a cold hole processing difficult problem in shovel drilling rod, after adopting subsection hole-drilling, weld, weld again the advanced technologies method of through hole, tradition depth drill deep hole processing, and this processing method has not only reduced processing cost, and be not subject to the restriction of processing conditions, conventional equipment and common fluted drill just can be processed; Reduce manufacturing procedure, shorten the processing duration, cut down finished cost, increase economic efficiency.
2, the utility model is rational in infrastructure, and chip area is straight trough, and cooling fluid by internal cooling hole, is directly cooled to cutting tip, and unique chip pocket, has not only optimized channel of chip removal, obviously improves machining accuracy and improves the surface quality of work piece.
3, the utility model shovel drill blade is used high speed steel material, is difficult for causing blade spring sword, and all blades are chip-breaker design, and iron filings are out little chip, are convenient to chip removal.Shovel drill blade has self-centering function, and twolip is stressed symmetrically and evenly, so be applicable to beating deep hole.This kind of invention is novel, easy to use, and manufacturing cost is lower, and production efficiency is high, and cutter life is long.
4, the utility model lengthens shovel drilling with welding after subsection hole-drilling, welds the advanced technologies method of through hole again, has solved a difficult problem for cold hole processing in overlength.Shovel 120 ° of enough chip removal spaces of drilling rod chip area, shovel bores knife bar all central water outlet hole, recommends to use cooling fluid in high pressure high flow capacity as far as possible, can extend widely like this service life of blade, is also more conducive to chip removal.
Accompanying drawing explanation
Fig. 1 is that interior cold interchangeable cutter head lengthens the overall structure schematic diagram that shovel bores.
Fig. 2 is the end-view of the utility model Fig. 1.
Fig. 3 is that the lengthening shovel of the utility model segmental machining, integral solder bores lever structure schematic diagram.
Fig. 4 is the main diagram of the utility model shovel drill blade.
Fig. 5 is the side view of the utility model Fig. 4.
The specific embodiment
Shown in accompanying drawing 1,2: this interior cold interchangeable cutter head lengthens shovel brill and comprises that shovel bores knife bar 1 and shovel drill blade 2, described shovel drill blade 2 bores knife bar 1 by screw special 3 and shovel and is fastenedly connected, described shovel bores knife bar 1 center and is processed with interior cold hole 4, described shovel brill knife bar 1 surface opening direction is 120 ° of symmetries and has two chip removal straight troughs 5, and the cutting end of described shovel brill knife bar 1 is also symmetrily processed with two end Nei Leng hole 6a and 6b can discharge and impel drill bit to lower the temperature in time in time for cooling fluid.
The length that described shovel bores knife bar 1 surpasses one meter, and segmental machining when shovel bores knife bar 1 processing, is finally welded into integral body, to treat following process.
Shown in accompanying drawing 4,5: be shovel drill blade 2, with two symmetrical locating hole 7a and 8b, be to be provided with a plurality of chip-breakers 8 on connection for blade and knife bar, symmetrical twolip above, described a plurality of chip-breaker 8 is in the interlaced distribution of circumferencial direction, cutting iron filings are out diminished to discharge, and end bores knife bar 1 and shovels the location between drill blade 2 for shoveling with positioning spline 9.
Claims (3)
1. cold interchangeable cutter head lengthens shovel and bores in one kind, this shovel bores and comprises that shovel bores knife bar and shovel drill blade, it is characterized in that: described shovel drill blade bores knife bar by screw special and shovel and is fastenedly connected, described shovel bores knife bar center and is processed with interior cold hole, described shovel brill knife bar surface opening direction is 120 ° of symmetries and has two chip removal straight troughs, and the cutting end of described shovel brill knife bar is also symmetrily processed with Nei Leng hole, two ends and can discharges and impel drill bit to lower the temperature in time in time for cooling fluid.
2. a kind of interior cold interchangeable cutter head according to claim 1 lengthens to shovel and bores, and it is characterized in that: the length that described shovel bores knife bar surpasses one meter, and segmental machining during the processing of shovel brill knife bar, is finally welded into integral body.
3. a kind of interior cold interchangeable cutter head according to claim 1 lengthens shovel brill, it is characterized in that: above described shovel drill blade, with two symmetrical locating holes, for shoveling, bore knife bar and shovel being connected of drill blade, on the twolip of shovel drill blade symmetry, be provided with a plurality of chip-breakers, described a plurality of chip-breaker is in the interlaced distribution of circumferencial direction, and the end of shovel drill blade bores knife bar and shovels the location between drill blade for shoveling with positioning spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325037.7U CN203900571U (en) | 2014-06-18 | 2014-06-18 | Inner-cooling lengthened spade drill with tool bit replaceable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420325037.7U CN203900571U (en) | 2014-06-18 | 2014-06-18 | Inner-cooling lengthened spade drill with tool bit replaceable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203900571U true CN203900571U (en) | 2014-10-29 |
Family
ID=51774862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420325037.7U Expired - Fee Related CN203900571U (en) | 2014-06-18 | 2014-06-18 | Inner-cooling lengthened spade drill with tool bit replaceable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203900571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985218A (en) * | 2015-06-26 | 2015-10-21 | 张家港玉成精机股份有限公司 | Machining process for machining through hole in workpiece on disc machine |
-
2014
- 2014-06-18 CN CN201420325037.7U patent/CN203900571U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985218A (en) * | 2015-06-26 | 2015-10-21 | 张家港玉成精机股份有限公司 | Machining process for machining through hole in workpiece on disc machine |
| WO2016206322A1 (en) * | 2015-06-26 | 2016-12-29 | 张家港玉成精机股份有限公司 | Processing device and processing method used for processing through hole |
| CN104985218B (en) * | 2015-06-26 | 2017-05-17 | 张家港玉成精机股份有限公司 | Machining process for machining through hole in workpiece on disc machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |