CN210702963U - Screw tap convenient to change awl tooth - Google Patents
Screw tap convenient to change awl tooth Download PDFInfo
- Publication number
- CN210702963U CN210702963U CN201921849629.8U CN201921849629U CN210702963U CN 210702963 U CN210702963 U CN 210702963U CN 201921849629 U CN201921849629 U CN 201921849629U CN 210702963 U CN210702963 U CN 210702963U
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- awl
- tap
- tooth
- base member
- screw tap
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Abstract
The utility model relates to a screw tap convenient to change awl tooth. Including screw tap stalk portion and screw tap work portion, screw tap work portion is including the transversal triangle-shaped base member of personally submitting, the axial dovetail has been seted up to each edge of base member, the rectangular form awl profile of having embedded in each dovetail, the terminal surface is equipped with the crimping lid under the base member, the crimping lid is through the screw rigid coupling on the base member, each the terminal surface is contradicted on the up end of crimping lid under the awl profile of tooth, because the setting of dovetail, make the awl profile of damage can the roll-off along axial direction when dismantling, only need simple when the new awl profile of clamping carry out the joint, easy operation is quick, and can change multiunit awl profile of tooth simultaneously, because the setting of crimping lid, make the lower extreme of awl profile of tooth obtain spacingly, the stability of awl profile of tooth at the during operation has been strengthened, the device can apply to industrial production, has very strong practicality.
Description
Technical Field
The utility model belongs to the technical field of the screw tap, especially, relate to a screw tap convenient to change awl tooth.
Background
In the current chinese patent database, disclosed the name for a fast-assembling high-efficient type cutting screw tap's patent, application number is CN201720683409.7, and application date is 2017.06.13, and the grant bulletin number is CN207272351U, and the grant bulletin date is 2018.04.27, and this patent includes the knife rest, be provided with the same spiral tooth strip of a plurality of shape on the knife rest replaceably, a plurality of the spiral tooth strip distributes the setting according to the interval distance, and the wall of this knife rest is outstanding to the cutting portion of this spiral tooth strip, is provided with the bevel groove on the lateral wall of this spiral tooth strip, be provided with locking screw corresponding to this bevel groove on the knife rest, its lies in: when the screw thread strip is replaced, the dismounting procedure is complex, the positioning mode of the screw thread strip is easy to loosen, and the problem of micro deviation of the screw thread strip exists when the screw tap works, so that the processing precision is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that after the screw thread of current screw tap ground, can only carry out the change of whole screw tap, in order to improve its weak point, the utility model provides a screw tap convenient to change awl tooth.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the utility model provides a screw tap convenient to change awl tooth, is including screw tap stalk portion and screw tap working part, screw tap working part is including the transversal triangle-shaped base member of personally submitting, and the axial dovetail has been seted up to each edge of base member, and each dovetail is embedded to have connect long banding awl tooth strip, and the terminal surface is equipped with the crimping lid under the base member, and the crimping lid is through the screw rigid coupling on the base member, each the terminal surface is contradicted on the up end of crimping lid under the awl tooth strip.
The utility model discloses the during operation, when one of them a set of or multiunit awl profile of screw tap working portion damaged, the awl profile that will damage takes out along the direction of axial dovetail on the axial base member, and the awl profile scarf joint after the change is in the dovetail that corresponds, and the lower terminal surface of awl profile is contradicted on the up end of crimping lid simultaneously, has restricted the axial displacement of awl profile.
Compared with the prior art, the beneficial effects of the utility model are that: because the setting of dovetail for the awl dental lamina that damages can the roll-off along axial direction when dismantling, only need simple when the new awl dental lamina of clamping carry out the joint, easy operation is quick, and can change multiunit awl dental lamina simultaneously, because the setting of crimping lid makes the lower extreme of awl dental lamina obtain spacingly, has strengthened the stability of awl dental lamina at the during operation, and the device can apply to industrial production, has very strong practicality.
Each edge of base member all is the circular arc of falling, awl tooth strip includes arc platelike awl tooth portion and sets up the strip stopper on awl tooth portion concave surface, and each strip stopper cooperatees with the dovetail that corresponds, lies in the awl tooth portion concave surface and each edge circular arc laminating setting of base member of rectangular stopper side.
Each awl wisp lower extreme face is provided with the spacing groove, the base member lower extreme face is provided with the recess, the crimping lid is triangle-shaped and sets up, and each spacing groove encloses synthetic constant head tank with the recess and the crimping lid matched with, the crimping lid is rabbeted in the constant head tank through the screw. The setting of constant head tank makes to be connected more firmly between crimping lid and awl tooth strip and the base member.
Drawings
Fig. 1 is a bottom view of the present invention.
In the figure: 1 tap working part, 2 base body, 201 dovetail groove. 3 tapered teeth strips, 301 tapered teeth parts, 302 strip-shaped limiting blocks and 4 crimping covers.
Detailed Description
The technical solution of the present application will be further described and explained with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the tap convenient for replacing the conical teeth comprises a tap handle and a tap working part 1, wherein the tap working part 1 comprises a base body 2 with a triangular cross section, axial dovetail grooves 201 are formed in edges of the base body 2, strip-shaped conical tooth strips 3 are embedded in the dovetail grooves 201, a crimping cover 4 is arranged on the lower end face of the base body 2, the crimping cover 4 is fixedly connected to the base body 2 through screws, and the lower end face of each conical tooth strip 3 abuts against the upper end face of the crimping cover 4. Each edge of base member 2 all is the circular arc of falling, and awl tooth strip 3 includes arc platelike awl tooth portion 301 and sets up the strip stopper 302 on awl tooth portion 301 concave surface, and each strip stopper 302 cooperatees with dovetail 201 that corresponds, lies in the laminating setting of awl tooth portion 301 concave surface and each edge circular arc of base member 2 of rectangular stopper side. The terminal surface is provided with the spacing groove under each awl tooth strip 3, and the terminal surface is provided with the recess under the base member 2, and crimping lid 4 is triangle-shaped setting, and each spacing groove encloses synthetic constant head tank with the recess and crimping lid 4 matched with, and crimping lid 4 is rabbeted in the constant head tank through the screw. The setting of constant head tank makes to be connected more firmly between crimping lid 4 and awl tooth strip 3 and the base member 2.
When the tap working part 1 works, when one or more groups of the conical tooth strips 3 of the tap working part 1 are damaged, the damaged conical tooth strips 3 are taken out along the direction of the axial dovetail groove 201 on the axial base body 2, the replaced conical tooth strips 3 are embedded in the corresponding dovetail grooves 201, and meanwhile, the lower end faces of the conical tooth strips 3 are abutted against the upper end face of the crimping cover 4, so that the axial movement of the conical tooth strips 3 is limited.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.
Claims (4)
1. The utility model provides a screw tap convenient to change awl tooth, includes screw tap stalk portion and screw tap work portion, its characterized in that: the tap working part comprises a base body with a triangular cross section, axial dovetail grooves are formed in edges of the base body, long-strip-shaped conical tooth strips are embedded in the dovetail grooves, a crimping cover is arranged on the lower end face of the base body and fixedly connected to the base body through screws, and the lower end face of each conical tooth strip abuts against the upper end face of the crimping cover.
2. The tap for facilitating replacement of a threading of a tap of claim 1, wherein: each edge of base member all is the circular arc of falling, awl tooth strip includes arc platelike awl tooth portion and sets up the strip stopper on awl tooth portion concave surface, and each strip stopper cooperatees with the dovetail that corresponds, lies in the awl tooth portion concave surface and each edge circular arc laminating setting of base member of rectangular stopper side.
3. The tap for facilitating replacement of a threading of a tap according to claim 2 wherein: each awl wisp lower extreme face is provided with the spacing groove, the base member lower extreme face is provided with the recess, the crimping lid is triangle-shaped and sets up, and each spacing groove encloses synthetic constant head tank with the recess and the crimping lid matched with, the crimping lid is rabbeted in the constant head tank through the screw.
4. A tap for facilitating replacement of a threading of a tap according to any one of claims 1 to 3 wherein: and a plurality of groups of chip flutes are arranged on the working part of the tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849629.8U CN210702963U (en) | 2019-10-30 | 2019-10-30 | Screw tap convenient to change awl tooth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921849629.8U CN210702963U (en) | 2019-10-30 | 2019-10-30 | Screw tap convenient to change awl tooth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210702963U true CN210702963U (en) | 2020-06-09 |
Family
ID=70967557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921849629.8U Active CN210702963U (en) | 2019-10-30 | 2019-10-30 | Screw tap convenient to change awl tooth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210702963U (en) |
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2019
- 2019-10-30 CN CN201921849629.8U patent/CN210702963U/en active Active
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| GR01 | Patent grant |