CN210966550U - Metal corrugated pipe spinning core rod - Google Patents
Metal corrugated pipe spinning core rod Download PDFInfo
- Publication number
- CN210966550U CN210966550U CN201921442660.XU CN201921442660U CN210966550U CN 210966550 U CN210966550 U CN 210966550U CN 201921442660 U CN201921442660 U CN 201921442660U CN 210966550 U CN210966550 U CN 210966550U
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- core rod
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- spinning
- corrugated pipe
- corrugated
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Abstract
The utility model belongs to frock mold design field relates to a corrugated metal pipe spinning plug. The metal corrugated pipe spinning core rod is composed of a core rod left section (1), a core rod middle section (2) and a core rod spinning profile section. The left section (1) of the core rod is a cylinder with a longer length, the middle section (2) of the core rod is a cylinder with a smaller length and a diameter larger than that of the left section of the core rod, and the spinning profile section (3) is provided with a section of uniformly distributed grooves. The utility model is used for corrugated metal pipe spinning plug can accurate control corrugated pipe shaping back ripple shape and ripple external diameter size, has guaranteed corrugated pipe ripple and external diameter size's uniformity, has improved the processing qualification rate.
Description
Technical Field
The utility model belongs to frock mold design field relates to a corrugated metal pipe spinning plug.
Background
The wave shape of the metal corrugated pipe is generally directly manufactured by hydraulic forming, and the wave shape and the outer diameter size of the metal corrugated pipe mainly depend on a forming die with a wedge. However, when the forming die with the wedge is hydraulically formed, due to the fact that the wedge dies are separated from each other, the corrugated pipe material has the problem of inconsistent material supply, corrugated waveforms and corrugated outer diameter sizes cannot be accurately controlled, the waveform consistency is poor, the corrugated pipe outer diameter sizes are easy to be out of tolerance, and the processing qualification is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the metal corrugated pipe spinning core rod can accurately control the corrugated shape and the corrugated outer diameter size of the corrugated pipe after forming, ensure the consistency of the corrugated shape and the corrugated outer diameter size of the corrugated pipe and improve the processing qualified rate.
The technical scheme of the utility model is that: a metal corrugated pipe spinning core rod is composed of a core rod left section 1, a core rod middle section 2 and a core rod spinning profile section; the left section 1 of the core rod is a cylinder with a long length, the middle section 2 of the core rod is a cylinder with a small length and a diameter larger than that of the left section of the core rod, and the spinning profile section 3 is provided with a section of uniformly distributed grooves.
The evenly distributed grooves are located in the front section of the spinning profile section 3.
The back section of the spinning profile section 3 connected with the middle section of the core rod is a smooth section.
The number of the grooves of the spinning profile section 3 is 5-15.
The entrance of the groove is provided with a symmetrical chamfer which is matched with the waveform of the corrugated pipe.
The bottom of the groove is a circular groove, and the radius of the circular groove is matched with the angle R of the corrugated pipe trough.
The distance between the adjacent grooves is matched with the size of the outer diameter of the wave crest of the corrugated pipe.
The utility model has the advantages that: the spinning core rod for the metal corrugated pipe can accurately control the corrugated shape and the corrugated outer diameter size of the corrugated pipe after being formed, ensures the consistency of the corrugated shape and the corrugated outer diameter size of the corrugated pipe, and improves the processing qualified rate.
Drawings
Fig. 1 is a schematic structural view of the metal bellows spinning core rod of the present invention.
Figure 2 is an enlarged schematic cross-sectional view of the trench of figure 1,
wherein, 1-a core rod left section, 2-a core rod middle section, 3-a core rod spinning profile section and 4-a groove.
Detailed Description
The present invention will be described in further detail below.
Referring to fig. 1, the utility model discloses corrugated metal pipe spinning plug, it comprises plug left side section 1, plug middle section 2 and plug spinning profile section. Wherein, the left section 1 of the core rod is a cylinder with a longer length and is used for clamping. The middle section 2 of the core rod is a cylinder with a smaller length and a diameter larger than that of the left section of the core rod, and a connecting positioning hole is arranged in the middle of the cylinder and used for positioning the size of the corrugated pipe. The back section of the spinning profile section 3 is a polished rod and is connected with the connecting and positioning hole in the middle section of the core rod, and the front section of the spinning profile section is provided with uniformly distributed grooves for spinning and forming the corrugated pipe.
Referring to fig. 2, the number of the grooves of the spinning profile section 3 is 5 to 15. The corrugated pipe is characterized in that symmetrical chamfers are arranged at the inlet of the groove and matched with the corrugated pipe in waveform, the bottom of the groove is a circular groove, the radius of the circular groove is matched with the R angle of the trough of the corrugated pipe, and the distance between adjacent grooves is matched with the external diameter of the wave crest of the corrugated pipe, so that the required corrugated pipe with a specific waveform can be obtained by spinning the groove.
The utility model discloses corrugated metal pipe spinning plug, spinning plug material choose for use to be 45# steel, have good machinability, this spinning plug during actual working, lathe is connected to plug left side section 1, and the bellows blank cup joints on plug spinning profile section to drive by the lathe and rotate, then the slot department of outside gyro wheel spinning plug spinning profile section obtains the bellows of specific wave form.
The utility model discloses corrugated metal pipe spinning plug can process slot quantity and slot profile according to the bellows wave form and the external diameter dimension that need process, but accurate control corrugated metal pipe wave form and external diameter dimension, effectual corrugated metal pipe hydroforming back wave form uniformity poor and the easy out-of-tolerance scheduling problem of ripple external diameter dimension that has reduced, improved the processing qualification rate.
In example 1, the number of grooves of the metal corrugated pipe spinning core rod is 8, the chamfer angle of the groove is 45 degrees, the bottom R angle is 2mm, and the distance between adjacent grooves is 6.3 mm.
In example 2, the number of grooves of the metal corrugated pipe spinning core rod is 12, the chamfer angle of the groove is 40 degrees, the bottom R angle is 1.8mm, and the distance between adjacent grooves is 6.5 mm.
Claims (7)
1. A metal bellows spinning plug which characterized in that: the device consists of a core rod left section (1), a core rod middle section (2) and a core rod spinning profile section; the left section (1) of the core rod is a cylinder with a longer length, the middle section (2) of the core rod is a cylinder with a smaller length and a diameter larger than that of the left section of the core rod, and the spinning profile section (3) is provided with a section of uniformly distributed grooves.
2. The metal bellows spinning mandrel of claim 1, wherein: the evenly distributed grooves are positioned at the front section of the spinning profile section (3).
3. The metal bellows spinning mandrel of claim 1, wherein: the back section of the spinning profile section (3) connected with the middle section of the core rod is a smooth section.
4. The metal bellows spinning mandrel of claim 1, wherein: the number of the grooves of the spinning profile section (3) is 5-15.
5. The metal bellows spinning mandrel of claim 1, wherein: the entrance of the groove is provided with a symmetrical chamfer which is matched with the waveform of the corrugated pipe.
6. The metal bellows spinning mandrel of claim 1, wherein: the bottom of the groove is a circular groove, and the radius of the circular groove is matched with the angle R of the corrugated pipe trough.
7. The metal bellows spinning mandrel of claim 1, wherein: the distance between the adjacent grooves is matched with the size of the outer diameter of the wave crest of the corrugated pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442660.XU CN210966550U (en) | 2019-08-30 | 2019-08-30 | Metal corrugated pipe spinning core rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921442660.XU CN210966550U (en) | 2019-08-30 | 2019-08-30 | Metal corrugated pipe spinning core rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210966550U true CN210966550U (en) | 2020-07-10 |
Family
ID=71440335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921442660.XU Active CN210966550U (en) | 2019-08-30 | 2019-08-30 | Metal corrugated pipe spinning core rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210966550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643305A (en) * | 2022-03-25 | 2022-06-21 | 蔡衡 | Method and equipment for spinning corrugations in stable metal pipe fitting |
-
2019
- 2019-08-30 CN CN201921442660.XU patent/CN210966550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643305A (en) * | 2022-03-25 | 2022-06-21 | 蔡衡 | Method and equipment for spinning corrugations in stable metal pipe fitting |
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