CN210080485U - Large-hole step punching die for numerical control punch - Google Patents
Large-hole step punching die for numerical control punch Download PDFInfo
- Publication number
- CN210080485U CN210080485U CN201920894459.9U CN201920894459U CN210080485U CN 210080485 U CN210080485 U CN 210080485U CN 201920894459 U CN201920894459 U CN 201920894459U CN 210080485 U CN210080485 U CN 210080485U
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- numerical control
- arc line
- radius
- section
- hole step
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Abstract
The utility model relates to a big hole step punching die for numerical control punch, which comprises a cylindrical die head, wherein the outer contour of the cross section of the cylindrical die head is formed by connecting at least three arc line sections, the radius of each arc line section is unequal, the connecting points of all the arc line sections are positioned on the same circular contour line, and the radius of each arc line section is more than or equal to the radius of the circular contour line; the utility model provides high machining efficiency has improved mould life.
Description
Technical Field
The utility model relates to a numerical control punch press technical field specifically is a big hole step die for numerical control punch press.
Background
The numerical control punch press is widely applied to half kilogram processing. When the large hole is processed, the punching die of the punching machine is limited in size and can only be processed in a step punching mode, namely, a circle of punching is carried out along the circumference of the large hole to be processed, the cross section of most punching die heads is circular at present, and the following problems exist in actual processing: 1. the punch only punches a small part of material each time, so that unbalanced stress is caused, and the service life of the die is shortened; 2. the number of nibs has to be increased in order to obtain a better profile without a pronounced saw tooth profile, thereby reducing the processing efficiency.
Disclosure of Invention
The utility model discloses a main objective has the mould life-span to reduce when solving present punch press processing jumbo size hole, and the problem that machining efficiency is low provides a big hole step die for numerical control punch press.
The utility model has the following concrete scheme: the large-hole step punching die for the numerical control punch comprises a cylindrical die head, wherein the outer contour of the cross section of the cylindrical die head is formed by connecting at least three arc line sections, the radius of each arc line section is different, the connecting points of all the arc line sections are positioned on the same circular contour line, and the radius of each arc line section is larger than or equal to the radius of the circular contour line.
The outline of the cross section of the cylindrical die head is formed by connecting four arc line sections.
The radius of the circular contour line is 34.5 mm.
The radius of the four-section arc segment is 45mm, 60mm, 75mm and 90mm respectively.
The working principle of the utility model is as follows: when a large-size hole is actually processed, an arc line segment closest to the hole diameter is selected as a tangent line segment, a step punching mode is also adopted, the tangent line segment is aligned with the edge of the hole diameter during each processing, and the hole is punched after rotating a certain angle after each punching until a circle of hole is punched along the large hole, so that the processing is completed.
Compared with the prior art, the utility model has the following advantages: the radius of the arc line section is increased under the limitation of the size of the punch, the arc line sections can be selected according to the size of an actual processing hole, the processing area of the punch is increased, the number of times of nibbling is reduced, the processing efficiency is improved, and the service life of a die is prolonged.
Drawings
Fig. 1 is a front view of the present invention;
in the figure: 1-arc segment, 2-connection point, 3-circular contour line and 4-cylindrical die head.
Detailed Description
Referring to fig. 1, the present embodiment includes a cylindrical die head 4, an outer contour of a cross section of the cylindrical die head 4 is formed by connecting four arc segments 1, radii of the arc segments 1 are different, connection points 2 of all the arc segments 1 are located on the same circular contour line 3, and the radius of each arc segment 1 is greater than or equal to the radius of the circular contour line 3.
The radius of the circular contour 3 in this embodiment is 34.5 mm.
In this embodiment, the radii of the four arc segments 1 are 45mm, 60mm, 75mm, and 90mm, respectively.
Claims (4)
1. The utility model provides a big hole step die for numerical control punch press, includes the cylindricality die head, characterized by: the outer contour of the cross section of the cylindrical die head is formed by connecting at least three arc line sections, the radius of each arc line section is different, the connecting points of all the arc line sections are positioned on the same circular contour line, and the radius of each arc line section is larger than or equal to that of the circular contour line.
2. The large hole step die for the numerical control press according to claim 1, wherein: the outer contour of the cross section of the cylindrical die head is formed by connecting four arc line sections.
3. The large hole step die for the numerical control press according to claim 2, wherein: the radius of the circular contour line is 34.5 mm.
4. The large hole step die for the numerical control press according to claim 3, wherein: the radiuses of the four arc line segments are 45mm, 60mm, 75mm and 90mm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894459.9U CN210080485U (en) | 2019-06-14 | 2019-06-14 | Large-hole step punching die for numerical control punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894459.9U CN210080485U (en) | 2019-06-14 | 2019-06-14 | Large-hole step punching die for numerical control punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210080485U true CN210080485U (en) | 2020-02-18 |
Family
ID=69482857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920894459.9U Active CN210080485U (en) | 2019-06-14 | 2019-06-14 | Large-hole step punching die for numerical control punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210080485U (en) |
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2019
- 2019-06-14 CN CN201920894459.9U patent/CN210080485U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A large hole step die for NC punch Effective date of registration: 20220113 Granted publication date: 20200218 Pledgee: CITIC Bank Limited by Share Ltd. Huangshi branch Pledgor: HUBEI WANGAN TECHNOLOGY Co.,Ltd. Registration number: Y2022420000011 |