CN117046948A - Die positioning mechanism for flanging of outer plate - Google Patents
Die positioning mechanism for flanging of outer plate Download PDFInfo
- Publication number
- CN117046948A CN117046948A CN202311038970.6A CN202311038970A CN117046948A CN 117046948 A CN117046948 A CN 117046948A CN 202311038970 A CN202311038970 A CN 202311038970A CN 117046948 A CN117046948 A CN 117046948A
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- CN
- China
- Prior art keywords
- pin
- flanging
- positioning
- die
- movable
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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.)
- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000009966 trimming Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a die positioning mechanism for flanging an outer plate, which comprises an upper die body and a lower die body which are correspondingly arranged, wherein an upper die flanging cutter block is arranged on the upper die body, a male die is arranged on the lower die body, a movable positioning structure for positioning the edge of the outer plate is arranged on the male die, and the movable positioning structure is a movable positioning plate capable of elastically moving up and down. The plate edge positioning structure is designed into a movable positioning structure, when the upper die is opened, the positioning plate can play a role in positioning, when the upper die descends, the upper die flanging knife block can press down the movable positioning structure, so that avoidance on the upper die knife block is avoided, the strength of the upper die flanging knife block can be ensured, and the plate edge positioning structure is suitable for short flanging treatment of the plate.
Description
Technical Field
The invention relates to the technical field of flanging dies of automobile outer plates, in particular to a die positioning mechanism for flanging of outer plates.
Background
At present, in the stamping process design of an automobile die, the positioning of an automobile outer plate is always a difficult problem, particularly in the post-process, because the outer plate is a large A face, the modeling is simple, and the post-process almost cannot meet the rough positioning by the aid of the molded face, the conventional positioning plate is designed for rough positioning, and the triangular positioning holes are used for precise positioning in the conventional method.
However, when the subsequent process is pure flanging and the flanging side length is short, the conventional positioning plate according to experience is difficult to design, and the conventional process is shown in fig. 3; because the side length of the flanging is short, the conventional fixed positioning plate 6 is close to the flanging parting line, and the upper die is provided with the flanging knife block for preventing interference with the fixed positioning plate when being pressed down, the flanging knife block needs to be designed with a positioning plate abdication space, so that the strength of the flanging knife block is insufficient, and the flanging cannot be stably realized.
A flanging and trimming process which is matched and positioned through a hole pin as disclosed in Chinese patent CN 110421065A; the specific process is as follows: drawing the product; punching a triangular hole on a process supplement auxiliary surface of the product to ensure that the trimming line is consistent with the triangular hole; positioning by using a positioning pin to pass through the triangular hole; after the product is positioned, a positioning tool is arranged at the edge of the product at one side of the positioning pin, and the product is positioned in an auxiliary way; the positioning structure is a fixed structure and cannot be suitable for the short flanging treatment of the plate.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a die positioning mechanism for flanging an outer plate, wherein the upper die flanging knife block does not need to avoid, so that the strength of the upper die flanging knife block can be ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
the die positioning mechanism for flanging the outer plate comprises an upper die body and a lower die body which are correspondingly arranged, wherein an upper die flanging cutter block is arranged on the upper die body, a male die is arranged on the lower die body, a movable positioning structure for positioning the edge of the outer plate is arranged on the male die, and the movable positioning structure is a movable positioning plate capable of elastically moving up and down.
Further:
and a spring is arranged below the movable positioning plate.
The extending part of the ejector pin of the movable positioning plate is arranged in a matched mode with the edge of the outer plate.
The movable positioning plate comprises a spring knock pin and a spring knock pin positioning seat, the spring knock pin positioning seat is arranged on the male die, and the spring knock pin is arranged on the spring knock pin positioning seat.
The male die is provided with a step structure, and the ejection pin positioning seat is arranged on the step.
The spring jack pin comprises a pin barrel and a movable pin, the lower part of the movable pin is arranged in the pin barrel, and an internal spring for providing upward acting force for the movable pin is arranged in the pin barrel.
The lower part of the pin cylinder is positioned in the lower die body.
The movable pin comprises a lower pin and an upper pin, the outer diameter of the lower pin is larger than that of the upper pin, a step is formed between the upper pin and the lower pin, a guide hole matched with the upper pin is formed in the upper die flanging knife block, and the upper pin is located in the guide hole.
The internal spring is a rectangular spring.
Compared with the prior art, the invention has the following advantages:
this a mould positioning mechanism for planking turn-ups structural design is reasonable, and plate edge positioning structure designs into movable location structure, and the locating plate can play the positioning action when last mould is opened, goes up mould turn-ups sword piece and can push down movable location structure when going up the mould and go down, avoids doing dodging on last mould sword piece like this, can guarantee the intensity of last mould turn-ups sword piece, is suitable for the short turn-ups of plate and handles.
Drawings
The contents and the marks in the drawings expressed in the drawings of the present specification are briefly described as follows:
FIG. 1 is a schematic diagram of a positioning arrangement according to the present invention.
FIG. 2 is a partial schematic view of the positioning mechanism of the present invention.
Fig. 3 is a partial schematic view of a conventional positioning mechanism.
In the figure:
1. the movable positioning structure comprises a spring top pin, a spring top pin positioning seat, a trimming positioning pin, a plate, a male die, an upper die flanging knife block and a fixed positioning plate.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings, which illustrate in further detail.
As shown in fig. 1 and 2, the die positioning mechanism for flanging an outer plate comprises an upper die body and a lower die body which are correspondingly arranged, wherein an upper die flanging cutter block 5 is arranged on the upper die body, a male die 4 is arranged on the lower die body, and the upper die flanging cutter block and the male die are correspondingly arranged.
The male die is provided with a movable positioning structure 1 and a trimming positioning pin 2 for positioning the edge of the outer plate, and the movable positioning structure is a movable positioning plate capable of elastically moving up and down. The edge positioning structure of the plate 3 is designed into a movable positioning structure, when the upper die is opened, the positioning plate can play a role in positioning, when the upper die descends, the upper die flanging knife block can press down the movable positioning structure, so that avoidance on the upper die knife block is avoided, the strength of the upper die flanging knife block can be ensured, and the plate short flanging treatment device is applicable to plate short flanging.
A spring is arranged below the movable positioning plate, and the movable positioning plate can move up and down; the elastic ejector pin extension part of the movable positioning plate is arranged in a matched mode with the edge of the outer plate, and positioning is accurate and reliable.
Preferably, the movable positioning plate comprises a spring knock pin 101 and a spring knock pin positioning seat 102, wherein the spring knock pin positioning seat is arranged on the male die, and the spring knock pin is arranged on the spring knock pin positioning seat; the male die is provided with a step structure, and the ejection pin positioning seat is arranged on the step, so that the structure is compact.
The spring jacking pin comprises a pin barrel and a movable pin, the lower part of the movable pin is arranged in the pin barrel, and an internal spring for providing upward acting force for the movable pin is arranged in the pin barrel; the preferred internal spring is a rectangular spring.
Further, the lower part of the pin cylinder is positioned in the lower die body; the movable pin comprises a lower pin and an upper pin, the outer diameter of the lower pin is larger than that of the upper pin, a step is formed between the upper pin and the lower pin, a guide hole matched with the upper pin is formed in the upper die flanging knife block, and the upper pin is located in the guide hole. When the flanging knife block of the upper die is in operation, the flanging knife block of the upper die is pressed on the step to retract the movable pin, the smaller upper pin moves in the guide hole, the operation is stable and reliable, and the structure is compact.
When the upper press descends to a certain distance, the upper die flanging knife block starts to contact with the movable locating plate, and as the press descends continuously, the elastic ejector pin is compressed due to the pressure of the upper die flanging knife block, and the internal rectangular spring starts to compress until the upper die flanging knife block finishes flanging. Because the rectangular spring with smaller force is arranged in the top pin, the top pin is compressed by the upper die flanging knife block, and the surface of the upper die flanging knife block is not damaged.
The movable locating plate can be used for not only completing the functional rough locating of the conventional locating plate, but also ensuring the strength of the flanging knife block of the upper die, so that the flanging work can be normally carried out.
The invention designs a fixed conventional positioning plate into a telescopic movable positioning plate, not only has the positioning function of the conventional positioning plate, but also can prevent the flanging knife block of the upper die from being damaged, ensure the strength and realize flanging.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and the above-described technical features may be arbitrarily combined to form a plurality of embodiments of the present invention.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied to other applications without any modification, as long as the inventive concept and technical scheme are adopted.
Claims (9)
1. The utility model provides a mould positioning mechanism for planking turn-ups, includes the last mould body and the lower mould body of corresponding setting, upward be equipped with mould turn-ups sword piece on the mould body, be equipped with the terrace die on the lower mould body, its characterized in that: the male die is provided with a movable positioning structure for positioning the edge of the outer plate, and the movable positioning structure is a movable positioning plate capable of elastically moving up and down.
2. A die positioning mechanism for flanging an outer plate as claimed in claim 1, wherein: and a spring is arranged below the movable positioning plate.
3. A die positioning mechanism for flanging an outer plate as claimed in claim 1, wherein: the extending part of the ejector pin of the movable positioning plate is arranged in a matched mode with the edge of the outer plate.
4. A die positioning mechanism for flanging an outer plate as claimed in claim 1, wherein: the movable positioning plate comprises a spring knock pin and a spring knock pin positioning seat, the spring knock pin positioning seat is arranged on the male die, and the spring knock pin is arranged on the spring knock pin positioning seat.
5. The die positioning mechanism for flanging an outer plate as claimed in claim 4, wherein: the male die is provided with a step structure, and the ejection pin positioning seat is arranged on the step.
6. The die positioning mechanism for flanging an outer plate as claimed in claim 4, wherein: the spring jack pin comprises a pin barrel and a movable pin, the lower part of the movable pin is arranged in the pin barrel, and an internal spring for providing upward acting force for the movable pin is arranged in the pin barrel.
7. The die positioning mechanism for flanging an outer plate as claimed in claim 6, wherein: the lower part of the pin cylinder is positioned in the lower die body.
8. The die positioning mechanism for flanging an outer plate as claimed in claim 6, wherein: the movable pin comprises a lower pin and an upper pin, the outer diameter of the lower pin is larger than that of the upper pin, a step is formed between the upper pin and the lower pin, a guide hole matched with the upper pin is formed in the upper die flanging knife block, and the upper pin is located in the guide hole.
9. The die positioning mechanism for flanging an outer plate as claimed in claim 6, wherein: the internal spring is a rectangular spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322009856 | 2023-07-28 | ||
| CN2023220098562 | 2023-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117046948A true CN117046948A (en) | 2023-11-14 |
Family
ID=88654860
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311038970.6A Pending CN117046948A (en) | 2023-07-28 | 2023-08-17 | Die positioning mechanism for flanging of outer plate |
| CN202322217764.3U Active CN220591233U (en) | 2023-07-28 | 2023-08-17 | Die positioning mechanism for flanging of outer plate |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322217764.3U Active CN220591233U (en) | 2023-07-28 | 2023-08-17 | Die positioning mechanism for flanging of outer plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117046948A (en) |
-
2023
- 2023-08-17 CN CN202311038970.6A patent/CN117046948A/en active Pending
- 2023-08-17 CN CN202322217764.3U patent/CN220591233U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN220591233U (en) | 2024-03-15 |
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| PB01 | Publication | ||
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