CN205763271U - A kind of drawn products with ledge structure - Google Patents
A kind of drawn products with ledge structure Download PDFInfo
- Publication number
- CN205763271U CN205763271U CN201620504430.1U CN201620504430U CN205763271U CN 205763271 U CN205763271 U CN 205763271U CN 201620504430 U CN201620504430 U CN 201620504430U CN 205763271 U CN205763271 U CN 205763271U
- Authority
- CN
- China
- Prior art keywords
- stretching step
- product
- inner sleeve
- overcoat
- lateral section
- Prior art date
- 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.)
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Abstract
This utility model relates to a kind of drawn products with ledge structure, by product overcoat, first stretching step, second stretching step and product inner sleeve composition, product overcoat and the first stretching step are connected, first stretching step and the second stretching step are connected, second stretching step is connected with product inner sleeve, it is provided with four apertures outside second stretching step, aperture is positioned in the vertical of drawn products cross section and parallel direction, product overcoat, first stretching step, the normal section of the second stretching step and product inner sleeve is circular configuration, the lateral section of the first stretching step is linear, the lateral section of the second stretching step is arc, the lateral section of product overcoat and product inner sleeve is parallel to each other.This utility model, by first preforming punching again, decreases the once-forming deformation of aperture, adds the tensile strength around hole, thus avoid the cracking of punching.
Description
Technical field
This utility model belongs to machined die field, and a kind of stretching with ledge structure is produced
Product.
Background technology
In prior art, first go out, through preform and shaping before the aperture product unshaped of drawn products
It is easy to after operation produce cracking.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, it is provided that one has ledge structure
Drawn products, by first preforming punching again, decrease the once-forming deformation of aperture, add hole
Tensile strength around, thus avoid the cracking of punching.
This utility model solves its technical problem and is achieved through the following technical solutions:
A kind of drawn products with ledge structure, by product overcoat, the first stretching step, the second stretching
Step and product inner sleeve composition, product overcoat is connected with the first stretching step, and first stretches step and the
Two stretching steps are connected, and the second stretching step is connected with product inner sleeve, set outside the second stretching step
Being equipped with four apertures, aperture is positioned in the vertical of drawn products cross section and parallel direction, product overcoat, the
The normal section of one stretching step, the second stretching step and product inner sleeve is circular configuration, the first drawing stand
The lateral section on rank is linear, and the lateral section of the second stretching step is arc, product overcoat and product inner sleeve
Lateral section is parallel to each other.
The preparation process of the drawn products with ledge structure of the present utility model includes rushing correcting nail, punching
Profile, preforming, punching, shaping, shaping, punching, flange, blanking.
A diameter of 3-5mm of described aperture, a diameter of 69-69.35mm of product overcoat, the first drawing stand
A diameter of 64.8-65.2mm on rank, a diameter of 46.8-47.2mm of the second stretching step, product inner sleeve
A diameter of 28.8-29.2mm.
The lateral section cross-directional length of described product inner sleeve is 7.35-7.65mm, the first stretching step
Lateral section cross-directional length is 15.25-15.75mm, and the lateral section horizontal direction of the second stretching step is long
Degree is 9.85-10.15mm.
The beneficial effects of the utility model, by first preforming punching again, decrease the once-forming of aperture
Deformation, adds the tensile strength around hole, thus avoids the cracking of punching.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is right view of the present utility model.
In figure, label is described as follows:
1-product overcoat；2-first stretches step；3-second stretches step；4-aperture；5-product inner sleeve.
Detailed description of the invention
Below by specific embodiment, the utility model is described in further detail, and following example simply describe
Property, it not determinate, it is impossible to limit protection domain of the present utility model with this.
There is the drawn products of ledge structure as shown in drawings, product overcoat 1, first stretch step
2, the second stretching step 3 and product inner sleeve 5 form, and product overcoat and the first stretching step are connected,
First stretching step and the second stretching step are connected, and the second stretching step is connected with product inner sleeve, the
Being provided with four apertures 4 outside two stretching steps, aperture is positioned at the vertical perpendicular and parallel side in drawn products cross section
Upwards, the normal section of product overcoat, the first stretching step, the second stretching step and product inner sleeve is circle
Shape structure, the lateral section of the first stretching step is linear, and the lateral section of the second stretching step is arc, produces
The lateral section of product overcoat and product inner sleeve is parallel to each other.
A diameter of 4.0mm of described aperture, a diameter of 69.2mm of product overcoat, first stretching step
A diameter of 65.0mm, a diameter of 47.0mm, a diameter of 29.0mm of product inner sleeve of the second stretching step.
The lateral section cross-directional length of described product inner sleeve is 7.5mm, the lateral section of the first stretching step
Cross-directional length is 15.5mm, and the lateral section cross-directional length of the second stretching step is 10.0mm.
The preparation process of the drawn products with ledge structure of the present utility model includes rushing correcting nail, punching
Profile, preforming, punching, shaping, shaping, punching, flange, blanking.
Above the technical solution of the utility model is done exemplary description, it should explanation, not
In the case of departing from the core of the technical program, any simple deformation, amendment or other this area skills
Art personnel can not spend the equivalent of creative work to each fall within the protection domain of this patent.
Claims (4)
1. a drawn products with ledge structure, it is characterised in that by product overcoat, the first stretching
Step, the second stretching step and product inner sleeve composition, product overcoat and the first stretching step are connected, the
One stretching step and the second stretching step are connected, and the second stretching step is connected with product inner sleeve, and second
Being provided with four apertures outside stretching step, aperture is positioned at the vertical of drawn products cross section and parallel direction
On, the normal section of product overcoat, the first stretching step, the second stretching step and product inner sleeve is circle
Structure, the lateral section of the first stretching step is linear, and the lateral section of the second stretching step is arc, product
The lateral section of overcoat and product inner sleeve is parallel to each other.
The drawn products with ledge structure the most according to claim 1, it is characterised in that described
The preparation process of drawn products include rushing correcting nail, punch extermal form, preforming, punching, shaping, shaping,
Punching, flange, blanking.
The drawn products with ledge structure the most according to claim 1, it is characterised in that described
The diameter of a diameter of 3-5mm of aperture, a diameter of 69-69.35mm of product overcoat, first stretching step
For 64.8-65.2mm, a diameter of 46.8-47.2mm of the second stretching step, product inner sleeve a diameter of
28.8-29.2mm。
The drawn products with ledge structure the most according to claim 1, it is characterised in that described
The lateral section cross-directional length of product inner sleeve is 7.35-7.65mm, the lateral section water of the first stretching step
Square to a length of 15.25-15.75mm, the lateral section cross-directional length of the second stretching step is
9.85-10.15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620504430.1U CN205763271U (en) | 2016-05-27 | 2016-05-27 | A kind of drawn products with ledge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620504430.1U CN205763271U (en) | 2016-05-27 | 2016-05-27 | A kind of drawn products with ledge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205763271U true CN205763271U (en) | 2016-12-07 |
Family
ID=59979140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620504430.1U Active CN205763271U (en) | 2016-05-27 | 2016-05-27 | A kind of drawn products with ledge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205763271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213211A (en) * | 2018-04-10 | 2018-06-29 | 上海维衡精密电子股份有限公司 | The stamping die and its Sheet Metal Forming Technology of second order is tubaeform part |
-
2016
- 2016-05-27 CN CN201620504430.1U patent/CN205763271U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213211A (en) * | 2018-04-10 | 2018-06-29 | 上海维衡精密电子股份有限公司 | The stamping die and its Sheet Metal Forming Technology of second order is tubaeform part |
| CN108213211B (en) * | 2018-04-10 | 2019-04-02 | 上海维衡精密电子股份有限公司 | The Sheet Metal Forming Technology of second order is tubaeform part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |