CN205888293U - Screw tap with apt qualitative ability of high pressure heater - Google Patents
Screw tap with apt qualitative ability of high pressure heater Download PDFInfo
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- CN205888293U CN205888293U CN201620877872.0U CN201620877872U CN205888293U CN 205888293 U CN205888293 U CN 205888293U CN 201620877872 U CN201620877872 U CN 201620877872U CN 205888293 U CN205888293 U CN 205888293U
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- tapping
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Abstract
Screw tap with apt qualitative ability of high pressure heater belongs to machine tooling equipment technical field, comprises screw tap action part and screw tap stalk portion, and the screw tap action part comprises tapping screw and chip groove jointly, the screw tap action part comprises four chip grooves and four tapping screw intervals, and the screw tap stalk portion presents straight six prismatic forms in the hope of being improved, and the prismatic side of screw tap stalk portion goes up to open has three locating hole, and the locating hole each other becomes 120 and distributes on six positive prismatic surfaces, and the locating hole has the flat blind hole of chamfer for the drill way. The utility model discloses utilize in the use among the clamping device during steel ball positioning acts on the locating hole, the clamping -force of increase substantially screw tap in anchor clamps, the state of screw tap centre gripping is more stable, has reduced the axial of screw tap work in -process and rocking of circumference, and the positioning accuracy and the machining precision in hole have obtained the improvement that is showing, have improved the life of tapping efficiency and screw tap, have reduced the processing cost.
Description
Technical field
This utility model belongs to machining apparatus technical field, is related to a kind of screw tap, and more particularly to one kind has high adding
The screw tap of work stability.
Background technology
Screw tap is one of instrument that machining is commonly used, and for undersized female thread, silk dimension is almost unique
Process tool.The species of silk dimension has: handss silk dimension, machine tap, nut tap, thread forming tap etc..Existing screw tap mainly has directly
Sword screw tap and spiral tap two big class.Straight sword screw tap machining accuracy is high, and the pitch diameter of thread size of tapping is good, but cutting ability is poor,
In use, effort is big, and effect is low, to difficult processing metal tapping, easily causes screw tap and fractures rupture；Spiral tap machinability
Can be good, chip removal is more smooth, but during processing screw thread, centering precision is low, so that pitch diameter of thread size is bad, so that scrapping product
Product, and during tapping, centering degree is poor, easily causes screw tap fracture.
The clamping stability of screw tap retaining part is the key factor of impact machining accuracy, and traditional screw tap shank is often processed
Become light footstalk or right-angled handle；Easily skidding, transfer phenomenon, the stability of axial and circumferential in optical axis square-shank tap work in-process
All poor；Right angle square-shank tap circumference clamping is relatively stable, is not in skid or transfer phenomenon, but the axial direction of right angle square-shank tap is still
Phenomenon mobile and that rock so occurs, machining accuracy improves inconspicuous.
Utility model content
This utility model be directed to traditional screw tap occur in process axially, circumferential clamping unstable, in processing easily
Mobile and shaking phenomenon, the deficiency such as coaxiality error of impact female thread occur, propose a kind of have high processing stability can
Screw tap, can increase considerably chucking power in fixture for the screw tap, can improve the machining accuracy of screw tap, the working (machining) efficiency of screw tap
Can get effective raising.
The technical solution of the utility model: there is the screw tap of high processing stability energy, by screw tap working portion and tap holder
Portion forms, and described screw tap working portion is collectively formed by tapping thread and chip area；It is characterized in that: described screw tap working portion
It is to be made up of four chip areas and four tapping thread intervals, described screw tap shank is in honest hexa-prism, described screw tap shank
Prism side on have three location holes, described location hole is mutually 120 ° of distributions on positive six prismsby face, and described location hole is
Aperture carries the flat blind hole of chamfering.
Described chip area is axial straight trough, every chip area mutually distribution in 90 °.
The aperture of described location hole is 3～6mm, and hole depth is 1.5～3.5mm, and orifice chamfer is 0.4 × 45 °.
The distance of the Kong Xinzhi tap holder end surface of described location hole is 12～15mm.
The beneficial effects of the utility model are: the utility model proposes have high processing stability can screw tap, screw tap
Shank is positive six prismsby, has three flat blind holes being mutually 120 ° on positive six prismsby surface, using clamping dress during use
Put steel ball positioning action in location hole, increase considerably chucking power in fixture for the screw tap, the state of screw tap clamping is more
Stable, decrease the rocking of axial and circumferential of screw tap work in-process, the positioning precision in hole and machining accuracy have obtained significantly
Improve, improve tapping efficiency and the service life of screw tap, reduce processing cost.
Brief description
Fig. 1 is this utility model overall structure diagram.
Fig. 2 is this utility model main structure diagram.
Fig. 3 is this utility model side structure schematic view.
Fig. 4 is the removal end view drawing in a-a direction in Fig. 2.
In figure: tapping thread 1, chip area 2, screw tap shank 3, location hole 4.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings:
As Figure 1-4, there is the screw tap of high processing stability energy, be made up of screw tap working portion and screw tap shank 3, silk
Cone working portion is collectively formed by tapping thread 1 and chip area 2；Screw tap working portion is by four chip areas 2 and four tapping
Screw thread 1 interval is constituted, and screw tap shank 3 is in honest hexa-prism, and the prism side of screw tap shank 3 has three location holes 4, fixed
Position hole 4 is mutually 120 ° of distributions on positive six prismsby face, and location hole 4 carries the flat blind hole of chamfering for aperture.
As Figure 1-4, there is the screw tap of high processing stability energy, chip area 2 is axial straight trough, every chip area is mutually
90 ° of distributions；The aperture of location hole 4 is 3～6mm, preferentially selects 5mm in the present embodiment, and hole depth is 1.5～3.5mm, orifice chamfer
For 0.4 × 45 °；The distance of Kong Xinzhi screw tap shank 3 end face of location hole 4 is 12～15mm, preferentially selects in the present embodiment
14mm.
This utility model screw tap shank is positive six prismsby, has three on positive six prismsby surface and is mutually 120 ° flat blind
Hole, utilizes steel ball positioning action in clamping device in location hole, to increase considerably folder in fixture for the screw tap during use
Holding force, the state of screw tap clamping is more stable, decreases the rocking of axial and circumferential of screw tap work in-process, the positioning precision in hole
Obtain significant raising with machining accuracy, improve tapping efficiency and the service life of screw tap, reduce processing cost.
Claims (4)
1. there is the screw tap of high processing stability energy, be made up of screw tap working portion and screw tap shank (3), described screw tap work department
Divide and collectively formed by tapping thread (1) and chip area (2)；It is characterized in that: described screw tap working portion is by four chip areas
(2) and four tapping thread (1) interval is constituted, and described screw tap shank (3) is in honest hexa-prism, described screw tap shank (3)
Three location holes (4) are had on prism side, described location hole (4) is mutually 120 ° of distributions on honest six prismatic surfaces, described fixed
Position hole (4) carries the flat blind hole of chamfering for aperture.
2. according to claim 1 have high processing stability can screw tap it is characterised in that: described chip area (2) is
Axial straight trough, every chip area mutually distribution in 90 °.
3. according to claim 1 have high processing stability can screw tap it is characterised in that: described location hole (4)
Aperture is 3～6mm, and hole depth is 1.5～3.5mm, and orifice chamfer is 0.4 × 45 °.
4. according to claim 1 have high processing stability can screw tap it is characterised in that: described location hole (4)
The distance of Kong Xinzhi screw tap shank (3) end face is 12～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877872.0U CN205888293U (en) | 2016-08-15 | 2016-08-15 | Screw tap with apt qualitative ability of high pressure heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620877872.0U CN205888293U (en) | 2016-08-15 | 2016-08-15 | Screw tap with apt qualitative ability of high pressure heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205888293U true CN205888293U (en) | 2017-01-18 |
Family
ID=57780589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620877872.0U Active CN205888293U (en) | 2016-08-15 | 2016-08-15 | Screw tap with apt qualitative ability of high pressure heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205888293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999904A (en) * | 2017-12-13 | 2018-05-08 | 贵州新安航空机械有限责任公司 | A kind of small-bore trapezoidal thread thread forming tap |
| GB2545333B (en) * | 2015-11-27 | 2019-09-25 | Holemaker Tech Limited | A metalworking cutting device with three screw recesses |
-
2016
- 2016-08-15 CN CN201620877872.0U patent/CN205888293U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2545333B (en) * | 2015-11-27 | 2019-09-25 | Holemaker Tech Limited | A metalworking cutting device with three screw recesses |
| CN107999904A (en) * | 2017-12-13 | 2018-05-08 | 贵州新安航空机械有限责任公司 | A kind of small-bore trapezoidal thread thread forming tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |