CN106270827A - A kind of screw tap - Google Patents
A kind of screw tap Download PDFInfo
- Publication number
- CN106270827A CN106270827A CN201610764446.0A CN201610764446A CN106270827A CN 106270827 A CN106270827 A CN 106270827A CN 201610764446 A CN201610764446 A CN 201610764446A CN 106270827 A CN106270827 A CN 106270827A
- Authority
- CN
- China
- Prior art keywords
- screw tap
- guide section
- cutting part
- thread
- tapping
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
- B23G5/062—Taps with a guiding means part
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a kind of screw tap, described screw tap includes: guide section, and one end of described guide section is connected with one end of cutting part, is used for guiding；Cutting part, the other end of described cutting part is connected with one end of calibration segment, is used for cutting, guiding screw thread to be formed；Calibration segment, the other end of described calibration segment is connected with force application part, for repairing the tooth form of screw thread；Wherein, described guide section guide, described cutting part treat thread mill drilling and carry out tapping so that the axis of described screw tap and the dead in line of described screwed hole to be processed, it is to avoid tapping is the most just；So, after utilizing this screw tap to process one section of guide thread, i.e. can utilize regular tap that screwed hole is carried out tapping, it is ensured that the axis of screw tap and screwed hole dead in line, it is to avoid the not positive phenomenon of tapping occurs.
Description
Technical field
The invention belongs to Machining Technology field, particularly relate to a kind of screw tap.
Background technology
Screw tap be processing various in, the Common Use Tools of small size screwed hole.Its simple in construction, easy to use, both can be manual
Operation also can work on lathe, applies quite varied in producing reality.For undersized female thread, silk
Cone almost unique process tool.
Producing in reality, when using screw tap manually to carry out threaded hole operation, by hole position, Set and Positioning, lead
To factor impacts such as set, operating experiences, the phenomenon that threaded hole is the most positive can occur often, subsequent correction is improper, causes screw thread
The overproof probability in hole is the biggest.Tapping behaviour is carried out especially for the screwed hole in cambered surface at Large Complicated Structural Component limited location
Make, because it is not suitable for machine tapping, it is necessary to use hand tapping, it is ensured that tool axis and screwed hole dead in line seem ten
Divide difficulty, special tooling need to be used to ensure crudy.The increase of frock quantity will improve cost of goods manufactured, also to production
Management proposes more requirements.It addition, when screwed hole diameter is less, screw tap intensity is relatively low, machine tapping screw tap easily snaps off, one
As also frequently with manual tapping.And manual operations crudy is affected relatively big by operator's operating experience factor, and add working medium
There is unstability in amount, once impacted production efficiency.
Based on this, the present invention provides a kind of screw tap, to solve the problems referred to above of the prior art.
Summary of the invention
The problem existed for prior art, embodiments provides a kind of screw tap, is used for solving in prior art,
During for solving threaded hole less to the screwed hole on globoidal structure or diameter in prior art, the axis of screw tap can not
With screwed hole dead in line, and then cause the most positive technical problem of tapping.
The present invention provides a kind of screw tap, and described screw tap includes:
Guide section, one end of described guide section is connected with one end of cutting part, is used for guiding；
Cutting part, the other end of described cutting part is connected with one end of calibration segment, is used for cutting, guiding screw thread shape
Become；
Calibration segment, the other end of described calibration segment is connected with force application part, is used for repairing form of thread；Wherein, by described
Guide section guides, described cutting part treat thread mill drilling and carry out tapping so that the axis of described screw tap is to be added with described
The dead in line of work screwed hole, it is to avoid tapping is the most just.
In such scheme, the length of described guide section is specially 2～3 times of screwed hole bottom diameter to be processed.
In such scheme, described guide section diameterWherein, described d is described screwed hole bottom outlet to be processed
Diameter.
In such scheme, described force application part includes:
Connecting portion, one end of described connecting portion is connected with the other end of described calibration segment.
In such scheme, described force application part also includes:
Shank, one end of described shank is connected with the other end of described connecting portion.
In such scheme, described force application part also includes:
Square toes, one end of described square toes is connected with the other end of described shank.
In such scheme, the other end of described guide section is provided with chamfering.
In such scheme, described cutting part is specially cutting cone.
In such scheme, described screw tap also includes: chip pocket, and one end of described chip pocket flushes with one end of guide section,
The other end of described chip pocket flushes with one end of described connecting portion.
In such scheme, described chip pocket includes four.
The invention provides a kind of screw tap, described screw tap includes: guide section, one end of described guide section and cutting part
One end is connected, and is used for guiding；Cutting part, the other end of described cutting part is connected with one end of calibration segment, is used for cutting, drawing
Guide screw stricture of vagina is formed；Calibration segment, the other end of described calibration segment is connected with force application part, for repairing the tooth form of screw thread；Wherein, by
Described guide section guides, described cutting part treat thread mill drilling and carry out tapping so that the axis of described screw tap is with described
The dead in line of screwed hole to be processed, it is to avoid tapping is the most just；So, after utilizing this screw tap to process one section of guide thread,
To utilize regular tap that screwed hole is carried out tapping, it is ensured that the axis of screw tap and screwed hole dead in line, it is to avoid occur that tapping is not
Positive phenomenon.
Accompanying drawing explanation
The overall structure schematic diagram of the screw tap that Fig. 1 provides for the embodiment of the present invention one.
Detailed description of the invention
During less to the screwed hole on globoidal structure or diameter threaded hole, can not be with in order to solve the axis of screw tap
Screwed hole dead in line, and then cause the most positive technical problem of tapping, the invention provides a kind of screw tap, described screw tap includes:
Guide section, one end of described guide section is connected with one end of cutting part, is used for guiding；Cutting part, described cutting part
The other end is connected with one end of calibration segment, is used for cutting, guiding screw thread to be formed；Calibration segment, the other end of described calibration segment with execute
Power parts are connected, for repairing the tooth form of screw thread；Wherein, described guide section guide, by described cutting part to spiral shell to be processed
Pit carries out tapping so that the axis of described screw tap and the dead in line of described screwed hole to be processed, it is to avoid tapping is the most just.
Below by drawings and the specific embodiments, technical scheme is described in further detail.
Embodiment one
The present embodiment provides a kind of screw tap, as it is shown in figure 1, described screw tap includes: guide section 1, cutting part 2, calibration segment
3；Wherein,
One end of described guide section 1 is connected with one end of cutting part 2, and described guide section 1 is used for guiding；Here, because leading
Needing certain length just can play guide effect to section 1, it is straight that the length of described guide section 1 is specially screwed hole bottom outlet to be processed
2～3 times of footpath.The diameter of described guide section 1 is essentially identical with screwed hole bottom diameter to be processed, but there is certain deviation,
Shown in relation such as formula (1) between the diameter d1 and screwed hole diameter d to be processed of guide section 1:
It addition, in order to beneficially guide section 1 enters screwed hole bottom outlet to be processed, the other end of guide section 1 is additionally provided with chamfering.
The other end of described cutting part 2 is connected with one end of calibration segment 3, and described cutting part 2 is at guide section 1
Treat thread mill drilling under guide effect and carry out tapping, guide screw thread to be formed.Wherein, described cutting part 2 is specifically as follows and cuts
Cut cone.
The other end of described calibration segment 3 is connected with force application part, and described calibration segment 3 is for repairing screw thread in tapping process
Tooth form.Wherein, described guide section 1, cutting part 2, the material of calibration segment 3 can be high-speed steel or steel alloy.
Further, seeing Fig. 1, described force application part includes: connecting portion 4, shank 5 and square toes 6；Described connecting portion 4
One end is connected with the other end of described calibration segment 3；One end of described shank 5 is connected with the other end of described connecting portion 4；Described side
One end of 6 is connected with the other end of described shank 5.
Described connecting portion 4 is specifically as follows cervical region, for the moment of torsion being applied to shank 5 is transferred to cutting part 2, rises
Cross interconnection function.Wherein, the material of described connecting portion 4, shank 5 and square toes 6 can be high-speed steel or steel alloy.
Here, in order to when tap tapping, it is to avoid squeezing and hinder thread surface, described screw tap also includes: chip pocket 7, described appearance
One end of bits groove 7 flushes with one end of guide section 1, and the other end of described chip pocket 7 flushes with one end of described connecting portion 4.This
Sample, can enter in the chip pocket 7 flushed with guide section 1 part when minority chip is dropped forward, overwhelming majority cutting is backward from neck
Portion discharges.Described chip pocket 7 specifically can include four.
In actual application, described guide section 1, cutting part 2, calibration segment 3, connecting portion 4, shank 5, square toes 6 and chip pocket 7
Can form with overall processing, it is possible to formed by the die hob transformation of the way.
When specific works, thread mill drilling can be treated first with the screw tap that the present invention provides and carry out tapping, centering spiral shell
Stricture of vagina bottom outlet, processes one section of guide thread, at least needs 4～5 button screw threads, then utilizes regular tap to treat along described guide thread
Thread mill drilling carries out tapping so that the axis of described screw tap and the dead in line of described screwed hole to be processed, it is to avoid occur attacking
The phenomenon that silk is the most positive.
The screw tap that the present embodiment provides, after utilizing guide section to process one section of guide thread, i.e. can utilize regular tap
Screwed hole is attacked, it is ensured that the axis of screw tap and screwed hole dead in line, it is to avoid the not positive phenomenon of tapping occurs.
Embodiment two
In the present embodiment, when the servo cabin housing unit that part to be processed is certain model, need at servo cabin housing
Tapping on fiberglass heat shield, and limited by section structure, lack working place in nacelle, spiral shell need to be attacked from nacelle inward
Stricture of vagina, but screw is outwards installed in nacelle, axiality requires height, and the screw tap that embodiment one provides therefore can be utilized from external arc
Direct tapping on face, specific as follows:
As it is shown in figure 1, described screw tap includes: guide section 1, cutting part 2, calibration segment 3；Wherein,
One end of described guide section 1 is connected with one end of cutting part 2, and described guide section 1 is used for processing guide thread；This
In, because guide section 1 needs certain length just can play guide effect, the length of described guide section 1 is specially screw thread to be processed
2～3 times of hole bottom diameter.The diameter of described guide section 1 is essentially identical with screwed hole diameter to be processed, but exists certain inclined
Difference, shown in the relation such as formula (1) between the diameter d1 and screwed hole bottom diameter d to be processed of guide section 1:
It addition, in order to beneficially guide section 1 enters screwed hole bottom outlet to be processed, the other end of guide section 1 is additionally provided with chamfering.
The other end of described cutting part 2 is connected with one end of calibration segment 3, and described cutting part 2 is at guide section 1
Treat thread mill drilling under guiding guide effect and carry out tapping；Described cutting part 2 specifically can include cutting cone.
The other end of described calibration segment 3 is connected with force application part, and described calibration segment 3 is for repairing screw thread in tapping process
Tooth form.Wherein, described guide section 1, cutting part 2, the material of calibration segment 3 can be high-speed steel, steel alloy.
Further, seeing Fig. 1, described force application part includes: connecting portion 4, shank 5 and square toes 6；Described connecting portion 4
One end is connected with the other end of described calibration segment 3；One end of described shank 5 is connected with the other end of described connecting portion 4；Described side
One end of 6 is connected with the other end of described shank 5.
Described connecting portion 4 is specifically as follows cervical region, for the moment of torsion being applied to shank 5 is transferred to cutting part 2, rises
Cross interconnection function.Wherein, the material of described connecting portion 4, shank 5 and square toes 6 can be high-speed steel, steel alloy.
Here, in order to when tap tapping, it is to avoid squeezing and hinder thread surface, described screw tap also includes: chip pocket 7, described appearance
One end of bits groove 7 flushes with one end of guide section 1, and the other end of described chip pocket 7 flushes with one end of described connecting portion 4.This
Sample, can enter in the chip pocket 7 flushed with guide section 1 part when a small amount of chip is dropped forward, improve thread surface quality.Described
Chip pocket 7 specifically can include four.
In actual application, described guide section 1, cutting part 2, calibration segment 3, connecting portion 4, shank 5, square toes 6 and chip pocket 7
Can form with overall processing, it is possible to formed by the die hob transformation of the way.
When specific works, first with the screw tap that embodiment one provides, the exterior arc surface of servo cabin housing unit can be entered
Row tapping, centering thread Pilot hole, process 5 button guide thread, then utilize regular tap along described guide thread to be processed
Screwed hole carries out tapping so that the axis of described screw tap and the dead in line of described screwed hole to be processed, it is to avoid occur that tapping is not
Positive phenomenon.
The screw tap that the present embodiment provides, after arc surface utilizing guide section guiding process one section of guide thread,
To utilize regular tap that screwed hole is attacked, it is ensured that the axis of screw tap and screwed hole dead in line, it is to avoid occur that tapping is the most just
Phenomenon.
Embodiment three
In the present embodiment, when assembly to be processed is the screwed hole to be processed that bottom diameter is 2mm, screw tap intensity is relatively low,
Frangibility during tapping, the screw tap that therefore embodiment one can be utilized to provide is treated thread mill drilling and is carried out tapping, specific as follows:
As it is shown in figure 1, described screw tap includes: guide section 1, cutting part 2, calibration segment 3；Wherein,
One end of described guide section 1 is connected with one end of cutting part 2, and described guide section 1 is used for processing guide thread；This
In, because guide section 1 needs certain length just can play guide effect, the length of described guide section 1 is specially screw thread to be processed
2～3 times of hole bottom diameter.The diameter of described guide section 1 is essentially identical with screwed hole diameter to be processed, but exists certain inclined
Difference, shown in the relation such as formula (1) between the diameter d1 and screwed hole bottom diameter d to be processed of guide section 1:
It addition, in order to beneficially guide section 1 enters screwed hole bottom outlet to be processed, the other end of guide section 1 is additionally provided with chamfering.
The other end of described cutting part 2 is connected with one end of calibration segment 3, and described cutting part 2 is at guide section 1
Treat thread mill drilling under guide effect and carry out tapping；Described cutting part 2 specifically can include cutting cone.
The other end of described calibration segment 3 is connected with force application part, and described calibration segment 3 is for repairing screw thread in tapping process
Tooth form.Wherein, described guide section 1, cutting part 2, the material of calibration segment 3 can be high-speed steel or steel alloy.
Further, seeing Fig. 1, described force application part includes: connecting portion 4, shank 5 and square toes 6；Described connecting portion 4
One end is connected with the other end of described calibration segment 3；One end of described shank 5 is connected with the other end of described connecting portion 4；Described side
One end of 6 is connected with the other end of described shank 5.
Described connecting portion 4 is specifically as follows cervical region, for the moment of torsion being applied to shank 5 is transferred to cutting part 2, rises
Cross interconnection function.Wherein, the material of described connecting portion 4, shank 5 and square toes 6 can be high-speed steel or steel alloy.
Here, in order to when tap tapping, it is to avoid squeezing and hinder thread surface, described screw tap also includes: chip pocket 7, described appearance
One end of bits groove 7 flushes with one end of guide section 1, and the other end of described chip pocket 7 flushes with one end of described connecting portion 4.This
Sample, can enter in the chip pocket 7 flushed with guide section 1 part when minority chip is dropped forward, overwhelming majority cutting is backward from neck
Portion discharges.Described chip pocket 7 specifically can include four.
In actual application, described guide section 1, cutting part 2, calibration segment 3, connecting portion 4, shank 5, square toes 6 and chip pocket 7
Can form with overall processing, it is possible to formed by the die hob transformation of the way.
When specific works, thread mill drilling can be treated first with the screw tap that embodiment one provides and carry out tapping, centering
Thread Pilot hole, processes 4 button guide thread, then utilizes regular tap to treat thread mill drilling along described guide thread and attacks
Silk so that the axis of described screw tap and the dead in line of described screwed hole to be processed, it is to avoid the phenomenon that tapping is the most positive occurs.
The screw tap that the present embodiment provides, after utilizing guide section to process one section of guide thread, i.e. can utilize regular tap
Screwed hole is carried out tapping, it is ensured that the axis of screw tap and screwed hole dead in line, it is to avoid the not positive phenomenon of tapping occurs.
The above, only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention, all
Any amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a screw tap, it is characterised in that described screw tap includes:
Guide section, one end of described guide section is connected with one end of cutting part, is used for guiding；
Cutting part, the other end of described cutting part is connected with one end of calibration segment, is used for cutting, guiding screw thread to be formed；
Calibration segment, the other end of described calibration segment is connected with force application part, is used for repairing form of thread；Wherein, by described guiding
Section guides, described cutting part treat thread mill drilling and carry out tapping so that the axis of described screw tap and described spiral shell to be processed
The dead in line of pit, it is to avoid tapping is the most just.
2. screw tap as claimed in claim 1, it is characterised in that the length of described guide section is specially screwed hole bottom outlet to be processed
2～3 times of diameter.
3. screw tap as claimed in claim 2, it is characterised in that described guide section diameterWherein, described d is institute
State the diameter of screwed hole bottom outlet to be processed.
4. screw tap as claimed in claim 1, it is characterised in that described force application part includes:
Connecting portion, one end of described connecting portion is connected with the other end of described calibration segment.
5. screw tap as claimed in claim 4, it is characterised in that described force application part also includes:
Shank, one end of described shank is connected with the other end of described connecting portion.
6. screw tap as claimed in claim 5, it is characterised in that described force application part also includes:
Square toes, one end of described square toes is connected with the other end of described shank.
7. screw tap as claimed in claim 1, it is characterised in that the other end of described guide section is provided with chamfering.
8. screw tap as claimed in claim 1, it is characterised in that described cutting part is specially cutting cone.
9. screw tap as claimed in claim 4, it is characterised in that described screw tap also includes: chip pocket, one end of described chip pocket
Flushing with one end of guide section, the other end of described chip pocket flushes with one end of described connecting portion.
10. screw tap as claimed in claim 9, it is characterised in that described chip pocket includes four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764446.0A CN106270827A (en) | 2016-08-30 | 2016-08-30 | A kind of screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764446.0A CN106270827A (en) | 2016-08-30 | 2016-08-30 | A kind of screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106270827A true CN106270827A (en) | 2017-01-04 |
Family
ID=57675506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610764446.0A Pending CN106270827A (en) | 2016-08-30 | 2016-08-30 | A kind of screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106270827A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803562A (en) * | 2017-12-19 | 2018-03-16 | 兰州理工大学 | Single Zhi Shouyong reason heart screw taps and application method |
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|---|---|---|---|---|
| CN2740334Y (en) * | 2004-11-23 | 2005-11-16 | 赵洪恕 | Tap of puncture with small diameter and long service life |
| DE202009016808U1 (en) * | 2009-12-11 | 2010-03-04 | Paschke, Uwe, Dipl.-Wirtsch.-Ing. | tappers |
| CN202037386U (en) * | 2011-04-16 | 2011-11-16 | 四川天虎工具有限责任公司 | Correcting screw tap |
| CN202155618U (en) * | 2011-06-27 | 2012-03-07 | 沈阳远大铝业工程有限公司 | Guiding screw tap with inlaid head |
| CN203459782U (en) * | 2013-09-10 | 2014-03-05 | 江苏华久特钢工具有限公司 | Improved type guiding screw tap |
| CN206028930U (en) * | 2016-08-30 | 2017-03-22 | 湖北三江航天红阳机电有限公司 | Screw tap |
-
2016
- 2016-08-30 CN CN201610764446.0A patent/CN106270827A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2740334Y (en) * | 2004-11-23 | 2005-11-16 | 赵洪恕 | Tap of puncture with small diameter and long service life |
| DE202009016808U1 (en) * | 2009-12-11 | 2010-03-04 | Paschke, Uwe, Dipl.-Wirtsch.-Ing. | tappers |
| CN202037386U (en) * | 2011-04-16 | 2011-11-16 | 四川天虎工具有限责任公司 | Correcting screw tap |
| CN202155618U (en) * | 2011-06-27 | 2012-03-07 | 沈阳远大铝业工程有限公司 | Guiding screw tap with inlaid head |
| CN203459782U (en) * | 2013-09-10 | 2014-03-05 | 江苏华久特钢工具有限公司 | Improved type guiding screw tap |
| CN206028930U (en) * | 2016-08-30 | 2017-03-22 | 湖北三江航天红阳机电有限公司 | Screw tap |
Non-Patent Citations (1)
| Title |
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| 何建民: "《高级钳工必读》", 31 January 2012, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803562A (en) * | 2017-12-19 | 2018-03-16 | 兰州理工大学 | Single Zhi Shouyong reason heart screw taps and application method |
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Application publication date: 20170104 |