CN210789552U - Multi-section extrusion screw tap - Google Patents
Multi-section extrusion screw tap Download PDFInfo
- Publication number
- CN210789552U CN210789552U CN201920430491.1U CN201920430491U CN210789552U CN 210789552 U CN210789552 U CN 210789552U CN 201920430491 U CN201920430491 U CN 201920430491U CN 210789552 U CN210789552 U CN 210789552U
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- China
- Prior art keywords
- cooling
- tap
- extrusion
- screw tap
- section
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- 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.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a multistage section shape extrusion screw tap, include: the extruding part and the correcting part are connected and arranged at one end of the tap body, and the section of the thread of the extruding part is in a step shape; the extrusion part and the correction part are provided with cooling grooves which are inwards sunken, the cooling grooves are distributed in an S shape, and cooling liquid holes are formed in the cooling grooves; and one end of the tap body, which is far away from the extruding part and the correcting part, is provided with a liquid injection hole, and the liquid injection hole is communicated with the cooling liquid hole. The utility model provides a multistage section shape extrusion screw tap, the screw thread of extrusion portion adopt multistage trapezium structure, then rectify through the correction portion, have reduced the tapping resistance when guaranteeing the tapping effect. The utility model provides a shape extrusion screw tap is cut to multistage has set up the cooling bath of S-shaped, adopts the cooling liquid full coverage cooling, can make the screw tap be applicable to high-speed tapping.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a multistage section shape extrusion screw tap.
Background
The tap is a standard tool for processing cylindrical and conical internal threads and is a tool for processing various internal threads with medium and small sizes. The existing section-shaped extrusion screw tap has the defects of large tapping resistance, easy heating and the like in actual use, and the screw tap is easy to be clamped in a workpiece hole or directly broken.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a overcome the defect among the prior art and proposed a multistage section shape extrusion screw tap.
The utility model provides a shape extrusion screw tap is cut to multistage, include: the extruding part and the correcting part are connected and arranged at one end of the tap body, and the section of the thread of the extruding part is in a step shape; the extrusion part and the correction part are provided with cooling grooves which are inwards sunken, the cooling grooves are distributed in an S shape, and cooling liquid holes are formed in the cooling grooves; and one end of the tap body, which is far away from the extruding part and the correcting part, is provided with a liquid injection hole, and the liquid injection hole is communicated with the cooling liquid hole.
The utility model discloses in, the top of notch cuttype is triangle-shaped, and it is trapezoidal that each grade ladder is down.
In the utility model, the cross-section of the screw thread is of a three-level step type.
Preferably, the hypotenuse of the trapezoid is 60-75 ° from the base, this range of angles providing the least resistance to tapping.
The utility model provides a multistage section shape extrusion screw tap, the screw thread of extrusion portion adopt multistage trapezium structure, then rectify through the correction portion, have reduced the tapping resistance when guaranteeing the tapping effect.
The utility model provides a shape extrusion screw tap is cut to multistage has set up the cooling bath of S-shaped, adopts the cooling liquid full coverage cooling, can make the screw tap be applicable to high-speed tapping.
Drawings
Fig. 1 is a schematic structural view of the multi-sectional extrusion tap of the present invention.
Fig. 2 is a schematic view of the extruding portion of the multi-sectional extruding tap of the present invention.
Fig. 3 is a right side view of the tap body of the multi-segment truncated extrusion tap of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following specific examples and the accompanying drawings. The procedures, conditions, experimental methods and the like for carrying out the present invention are general knowledge and common general knowledge in the art except for the contents specifically mentioned below, and the present invention is not particularly limited.
In FIGS. 1-3, 1-extrusion part, 2-correction part, 3-cone, 4-cooling tank, 5-cooling liquid hole, and 6-liquid injection hole.
As shown in fig. 1-3, the present invention provides a multi-segment sectional extrusion tap, comprising: the extruding part and the correcting part are connected and arranged at one end of the tap body, and the section of the thread of the extruding part is in a step shape; the extrusion part and the correction part are provided with cooling grooves which are inwards sunken, the cooling grooves are distributed in an S shape, and cooling liquid holes are formed in the cooling grooves; and one end of the tap body, which is far away from the extruding part and the correcting part, is provided with a liquid injection hole, and the liquid injection hole is communicated with the cooling liquid hole.
The utility model discloses in, the top of notch cuttype is triangle-shaped, and it is trapezoidal that each grade ladder is down.
In the utility model, the cross-section of the screw thread is of a three-level step type.
Preferably, the hypotenuse of the trapezoid is 60-75 ° from the base, this range of angles providing the least resistance to tapping.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept, and the scope of the appended claims is intended to be protected.
Claims (4)
1. A multi-segment, cross-sectional extrusion tap comprising: a tap body, a pressing portion and a correcting portion, the pressing portion and the correcting portion being connected to each other and provided at one end of the tap body,
the section of the screw thread of the extrusion part is in a step shape;
the extrusion part and the correction part are provided with cooling grooves which are inwards sunken, the cooling grooves are distributed in an S shape, and cooling liquid holes are formed in the cooling grooves;
and one end of the tap body, which is far away from the extruding part and the correcting part, is provided with a liquid injection hole, and the liquid injection hole is communicated with the cooling liquid hole.
2. A multi-sectional extrusion tap according to claim 1 wherein said stepped top is triangular and each step below is trapezoidal.
3. A multi-section sectional extrusion tap according to claim 1 wherein the hypotenuse of the trapezoid is 60-75 ° from the base.
4. A multi-sectional extrusion tap according to claim 1 wherein said threading is three-step stepped in cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920430491.1U CN210789552U (en) | 2019-04-01 | 2019-04-01 | Multi-section extrusion screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920430491.1U CN210789552U (en) | 2019-04-01 | 2019-04-01 | Multi-section extrusion screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210789552U true CN210789552U (en) | 2020-06-19 |
Family
ID=71235262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920430491.1U Expired - Fee Related CN210789552U (en) | 2019-04-01 | 2019-04-01 | Multi-section extrusion screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210789552U (en) |
-
2019
- 2019-04-01 CN CN201920430491.1U patent/CN210789552U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 Termination date: 20210401 |