CN204122868U - A kind of tap holder - Google Patents
A kind of tap holder Download PDFInfo
- Publication number
- CN204122868U CN204122868U CN201420514397.1U CN201420514397U CN204122868U CN 204122868 U CN204122868 U CN 204122868U CN 201420514397 U CN201420514397 U CN 201420514397U CN 204122868 U CN204122868 U CN 204122868U
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- tap
- screw
- hole
- chuck
- screw tap
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Abstract
The utility model discloses a kind of tap holder, belong to field of machining.Tap holder comprises columned chuck, is located at the fixture block in chuck periphery face, and described chuck is provided with the through hole axially arranged along it, and described through hole is by the one section of square hole matched with screw tap profile and one section of circular hole.The tap holder that method slide system, processing and positioning process combined is obtained, makes screw tap can not produce idle running with tapping head determination synchronous axial system when tapping, and tapping processing is stable, smooth and easy, reduces processing bad; Well solve screw tap processing, positioning precision problem, guarantee screw tap and tapping head coaxial rotation, avoid the biased heart of tooth or cross the problem of cutting, meanwhile, ensure that screw tap is perpendicular to tooth position machined surface, reducing mismachining tolerance; Do not adopt screw locking to locate, avoid screw and to get loose the problem caused, improve production and processing efficiency.
Description
Technical field
The utility model relates to a kind of tap holder, particularly relates to the tap holder of a kind of slide system and processing, accurate positioning.
Background technology
Screw tap is also called screw tap, and screw tap is a kind of cutter of topmost machining internal thread, and screw tap carries out tapping and adds man-hour, all needs to be fixedly mounted on tooth machining unit head by supporting the use tap holder.At present, tap holder is mainly divided into two kinds of structures.
1. adopt the mode of sealed swivel nut on elastic steel sheet, be generally applicable to the screw tap that diameter is less than 10mm, determine the stressed size of screw tap with swivel nut locking degree.Swivel nut locking force hour, the idle running situation that tap holder continues to rotate is not transferred in the holding of normal generation screw tap, causes processing bad; When locking force is large, elongated screw tap easily fractures, then loss man-hour, increase cost.
2. directly adopt many screw lockings to fix screw tap.Due to built-in length when screw compresses screw tap not etc., screw tap and tapping head coaxial rotation cannot be guaranteed, swing about screw tap, cause the biased heart of tooth or mistake to be cut, affect machining accuracy; All screws are all located at same perpendicular in the plane of rotation, so whether accurately cannot locate screw tap perpendicular to tooth position machined surface, cause processing bad; Lock screw can produce vibrations under tapping active force, and causes screw to get loose, and screw is easy to outwards throw away along with tap holder rotates, and causes screw tap to rock and fractures and increase cost, or lock screw and increase man-hour repeatedly.Above due to processing, some problem of causing not of positioning accurate accuracy, have a strong impact on the qualification rate of product, caused that production efficiency is low, cost is high.
Therefore, how providing a kind of slide system and processing, tap holder that positioning precision is high, is industry technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is the problems such as the tap holder existed for above-mentioned prior art dallies, setting accuracy on work is low, proposes a kind of novel tap holder.
The technical solution adopted in the utility model: a kind of tap holder, comprise columned chuck, be located at the fixture block in chuck periphery face, described chuck is provided with the through hole axially arranged along it, and described through hole is by the one section of square hole matched with described screw tap profile and one section of circular hole.
Preferably, the interstice coverage between the inwall of described through hole and screw tap is 0.02 ~ 0.05mm, and the axis of described through hole and tapping head rotation are all on same straight line.
Preferably, describedly offer draw-in groove at chuck cylindrical outer side surface, fixture block is weldingly fixed in draw-in groove.
Preferably, be describedly radially provided with screw hole in chuck periphery, screw hole is provided with the screw for compressing screw tap.
Preferably, described fixture block is symmetrical arranged two.
Preferably, one end body diameter that described chuck is arranged on head is less than one end body diameter inserting screw tap.
Compared with prior art, the beneficial effects of the utility model: propose the tap holder that a kind of method slide system, processing and positioning process combined is obtained, be particularly useful for the screw tap that diameter is greater than 12mm.Advantage is: tap holder offers and the square hole of screw tap 0.02 ~ 0.05mm matched in clearance and circular hole.Act as: 1. make screw tap can not produce idle running with tapping head determination synchronous axial system when tapping, tapping processing is stable, smooth and easy, reduces processing bad; 2. 0.02 ~ 0.05mm matched in clearance well solve screw tap processing, positioning precision problem, guarantee screw tap and tapping head coaxial rotation, avoid the biased heart of tooth or the mistake problem of cutting, simultaneously, ensure that screw tap is perpendicular to tooth position machined surface, reduce mismachining tolerance, improve Product processing qualification rate; 3. do not adopt screw locking to locate, avoid screw and to get loose the problem caused, improve production and processing efficiency.The set screw set up on this basis, serves the effect of protection screw tap, prevents screw tap from falling and damaging.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is cross-sectional view of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described further.
Refer to Fig. 1 to Fig. 2, the utility model relates to a kind of tap holder, comprises columned chuck 1, is located at the fixture block 2 of chuck 1 cylindrical outer side surface.The contour structures of chuck 1 is processed according to the installation requirement of tapping head, and under normal circumstances, one end body diameter being arranged on head is less than one end body diameter inserting screw tap, and chuck 1 is arranged on the outer circumference surface that head end is also provided with camber or notch cuttype.Draw-in groove 3 is offered at chuck 1 cylindrical outer side surface, on the step surface that the different-diameter cylinder that draw-in groove 3 is located at chuck 1 is formed, fixture block 2 coordinates loading draw-in groove 3 interior and contact surface is welded and fixed, the part that fixture block 2 is located at chuck 1 small diameter cylinder protrudes from draw-in groove 3, the projection of described fixture block 2 be in order to tapping head location and installation, achieve tooth machining unit headband movable wire clamping head coaxial rotation.Preferred fixture block 2 is symmetrical arranged two, more firmly.
Chuck 1 is provided with the through hole axially arranged along it, and described through hole is divided into two sections according to the shape and structure of screw tap 7.Because screw tap 7 shape is divided into the square column 8 of installation end and the cylinder 9 of blade end, so two sections of through holes of chuck 1 correspondence are respectively the square hole 4 coordinated with square column 8 and the circular hole 5 coordinated with cylinder 9, square hole 4, through hole 5 and the matching requirements of screw tap 7 meet the matched in clearance of 0.02 ~ 0.05mm, and the center line of square hole 4, the axis of circular hole 5 and tapping head rotation are all on same straight line.Owing to being designed with square hole, screw tap is made can not produce idle running with tapping head determination synchronous axial system when tapping, and the installation requirement of chuck through hole and screw tap and through hole and tapping head coaxial design, well solve screw tap processing, positioning precision problem.
Be provided with radial screw hole 6 at circular hole 5 cylindrical outer side surface of chuck 1, screw hole 6 is provided with screw, and to be fixed and clamped screw tap 7 by lock screw, screw serves the effect of protection screw tap, prevents screw tap from accidentally falling and damaging.
During use, the through hole of corresponding chuck 1 directly inserts screw tap 7, and square column 8 inserts the rear tighten the screws of square hole 4 completely, can carry out tapping processing.Can obtain thus, the mounting means of this structure is faster, decreases the time regulating location screw tap, enhances productivity.
Above specific embodiment is only in order to illustrate structure of the present utility model, and those of ordinary skill in the art can make various deformation and change under design of the present utility model, and these distortion and change include within protection domain of the present utility model.
Claims (6)
1. a tap holder, comprise columned chuck (1), be located at the fixture block (2) in chuck (1) periphery face, it is characterized in that, described chuck (1) is provided with the through hole axially arranged along it, and described through hole is by the one section of square hole (4) matched with described screw tap profile and one section of circular hole (5).
2. tap holder according to claim 1, is characterized in that, the interstice coverage between the inwall of described through hole and screw tap is 0.02 ~ 0.05mm, and the axis of described through hole and tapping head rotation are all on same straight line.
3. tap holder according to claim 1, is characterized in that, describedly offers draw-in groove (3) at chuck (1) cylindrical outer side surface, and fixture block (2) is weldingly fixed in draw-in groove (3).
4. tap holder according to claim 1, is characterized in that, is describedly radially provided with screw hole (6) in chuck (1) periphery, and screw hole (6) is provided with the screw for compressing screw tap.
5. tap holder according to claim 1, is characterized in that, described fixture block (2) is symmetrical arranged two.
6. tap holder according to claim 1, is characterized in that, one end body diameter that described chuck (1) is arranged on head is less than one end body diameter inserting screw tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514397.1U CN204122868U (en) | 2014-09-09 | 2014-09-09 | A kind of tap holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514397.1U CN204122868U (en) | 2014-09-09 | 2014-09-09 | A kind of tap holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204122868U true CN204122868U (en) | 2015-01-28 |
Family
ID=52379258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514397.1U Active CN204122868U (en) | 2014-09-09 | 2014-09-09 | A kind of tap holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204122868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033367A (en) * | 2015-07-09 | 2015-11-11 | 河北华北柴油机有限责任公司 | Split-welded lengthened screw tap reducing sleeve and machining technology |
| CN106334808A (en) * | 2016-05-17 | 2017-01-18 | 湖南吉利汽车部件有限公司 | Sleeve special for screw tap |
-
2014
- 2014-09-09 CN CN201420514397.1U patent/CN204122868U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033367A (en) * | 2015-07-09 | 2015-11-11 | 河北华北柴油机有限责任公司 | Split-welded lengthened screw tap reducing sleeve and machining technology |
| CN105033367B (en) * | 2015-07-09 | 2018-04-06 | 河北华北柴油机有限责任公司 | Split welding screw tap lengthens reducing sleeve and processing technology |
| CN106334808A (en) * | 2016-05-17 | 2017-01-18 | 湖南吉利汽车部件有限公司 | Sleeve special for screw tap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |