CN212144138U - Punching device for automobile door buckle hole - Google Patents
Punching device for automobile door buckle hole Download PDFInfo
- Publication number
- CN212144138U CN212144138U CN201921888949.4U CN201921888949U CN212144138U CN 212144138 U CN212144138 U CN 212144138U CN 201921888949 U CN201921888949 U CN 201921888949U CN 212144138 U CN212144138 U CN 212144138U
- Authority
- CN
- China
- Prior art keywords
- punching
- punch
- automobile door
- knife
- hole
- 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.)
- Expired - Fee Related
Links
- 238000004080 punching Methods 0.000 title claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Abstract
The utility model provides a punching device for automobile door buckle hole, including the drift, the drift has back of a knife blade and cutting edge face, and the back of a knife blade intersects with the cutting edge face and forms the knife tip, and the back of a knife blade is 45 with the contained angle of cutting edge face, and angular tolerance 1, the drift is through thermal treatment, and its hardness reaches more than 50 rockwell hardness. The utility model has the advantages that: the back of a knife blade that is provided with the drift is 45 with the contained angle of sword blade face, reduces the contact surface to automobile door inner panel plate, and the punching press is cuted the back and is formed the knocker hole, and such shearing can eliminate the deformation that leads to the fact to the plate before cutting in advance, prevents unedged production effectively, carries out unedged shearing and punches a hole, guarantees the quality of punching a hole of plate.
Description
Technical Field
The utility model relates to a car technical field that punches a hole specifically relates to a punching device that is used for car door to detain hole.
Background
When door buckle holes of some automobile door inner plates are punched, a die mechanism is provided with a door buckle hole die cavity, the CAM is designed to be a downward interactive type punching hole, and the door buckle hole die cavity is designed to ensure that waste materials can smoothly drop after punching, so that the eating amount of the door buckle hole die cavity needs to be deeply designed, and is generally 5-8 mm; under the premise, referring to fig. 1, the included angle between the back of the knife and the edge surface of the existing punch is designed to be about 60 degrees, the contact surface is too large when the automobile door inner panel is punched and cut, and burrs are easily generated after punching, so that the quality is affected.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect that existing equipment exists, the utility model provides a punching device for automobile door buckle hole, the back of a knife blade of its drift is 45 with the contained angle of sword blade face, reduces the contact surface to automobile door inner panel plate, guarantees the quality of punching a hole.
The utility model discloses a realize like this: the punching device for the automobile door buckle hole comprises a punch, wherein the punch is provided with a knife back and a knife edge surface, the knife back and the knife edge surface are intersected to form a knife tip, the included angle between the knife back and the knife edge surface is 45 degrees, the angle tolerance is +/-1 degree, and the hardness of the punch reaches over 50 Rockwell hardness after heat treatment.
Further, the heat treatment is a quenching treatment.
Further, the projection shape of the punch in the punching direction is U-shaped.
The punching die is provided with a punching groove matched with the punch in shape, and the die is further provided with a positioning groove used for positioning the inner door panel of the automobile.
Furthermore, the two positioning grooves are respectively positioned at two sides of the punching groove.
Furthermore, the punching device also comprises a pushing mechanism, and the telescopic end of the pushing mechanism is fixedly connected with the punching head.
The utility model has the advantages that: the back of a knife blade that is provided with the drift is 45 with the contained angle of sword blade face, reduces the contact surface to automobile door inner panel plate, and the punching press is cuted the back and is formed the knocker hole, and such shearing can eliminate the deformation that leads to the fact to the plate before cutting in advance, prevents unedged production effectively, carries out unedged shearing and punches a hole, guarantees the quality of punching a hole of plate.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a conventional punch and an automobile door inner panel in a punching state.
Fig. 2 is a schematic diagram of the punching state of the punch and the inner panel of the automobile door according to the present invention.
Fig. 3 is a schematic diagram of the position relationship between the punch and the die in the present invention.
Fig. 4 is a schematic structural diagram of a door fastener hole on an inner panel of an automobile door of the present invention.
The labels in the figure are: the punching head comprises a punching head 1, a knife back 11, a knife edge surface 12, a knife tip 13, a die 2, a punching groove 21, a positioning groove 22, a pushing mechanism 3, an automobile door inner plate 4, a positioning convex part 41, a door buckle hole 42 and a plate deformation 43.
Detailed Description
Referring to fig. 2 to 4, the preferred embodiment of the punching apparatus for automobile door buckle holes of the present invention; the punching head comprises a punching head 1, wherein the punching head 1 is provided with a knife back 11 and a knife edge surface 12, the knife back 11 and the knife edge surface 12 are intersected to form a knife tip 13, and the knife tip 13 is abutted against an automobile door inner plate 4 plate during punching; the included angle between the knife back 11 and the knife edge surface 12 is 45 degrees, and the angle tolerance is +/-1 degree, so that the contact surface of the inner plate 4 of the automobile door is reduced; the punch 1 is subjected to quenching heat treatment, and the hardness of the punch reaches more than 50 Rockwell hardness; the punch 1 is made of steel material. The projection shape of the punch 1 in the punching direction is U-shaped; so that the shape of the shackle hole 42 is U-shaped. Carry out the punching press on 4 plates of automobile door inner panel and cut the back and form the knocker hole 42, such shearing can eliminate the deformation that leads to the fact the board before the pre-shear, prevents unedged production effectively, surely punches a hole before carrying out the unhanged, guarantees the quality of punching a hole of plate.
Referring to fig. 1, the conventional punch 1 generates a large sheet deformation 43 and is prone to generate burrs when punching the automobile door inner panel 4. Referring to fig. 2, the utility model discloses a drift 1, at the in-process that punches a hole, car door inner panel 4 produces little plate deflection 43, is difficult for producing deckle edge.
Referring to fig. 3, the automobile door inner panel punching die further comprises a die 2 for placing an automobile door inner panel 4, the die 2 is provided with a punching groove 21 matched with the punch 1 in shape, and the die 2 is further provided with a positioning groove 22 for positioning the automobile door inner panel 4. The two positioning grooves 22 are respectively positioned at two sides of the punching groove. The positioning groove 22 is matched with the positioning convex part 41 on the automobile door inner panel 4, and then the mould 2 is clamped on the contour of the automobile door inner panel 4.
The punching head device further comprises a pushing mechanism 3, and the telescopic end of the pushing mechanism 3 is fixedly connected with the punching head 1. The pushing mechanism 3 can be a hydraulic cylinder and the like, the pushing mechanism 3 transmits power to the punch 1, and the punch 1 and the punching groove 21 are matched to punch a door buckle hole 42 on the automobile door inner panel 4 plate. The punched holes are burr-free and the quality of the door catch holes 42 is high.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides a punching device for car door buckle hole which characterized in that: the punch comprises a punch head, wherein the punch head is provided with a knife back and a knife edge surface, the knife back and the knife edge surface are intersected to form a knife tip, the included angle between the knife back and the knife edge surface is 45 degrees, the angle tolerance is +/-1 degree, and the hardness of the punch head reaches more than 50 Rockwell hardness after heat treatment.
2. A punch apparatus for automobile door buckle holes as claimed in claim 1, wherein: the heat treatment is quenching treatment.
3. A punch apparatus for automobile door buckle holes as claimed in claim 1, wherein: the projection shape of the punch in the punching direction is U-shaped.
4. A punch apparatus for automobile door fastener holes as claimed in claim 1, 2 or 3, wherein: the punching die is characterized by further comprising a die for placing the inner door panel of the automobile, the die is provided with a punching groove matched with the punch in shape, and the die is further provided with a positioning groove for positioning the inner door panel of the automobile.
5. A punch apparatus for automobile door buckle holes according to claim 4, characterized in that: the two positioning grooves are respectively positioned on two sides of the punching groove.
6. A punch apparatus for automobile door buckle holes according to claim 4, characterized in that: the punching head device further comprises a pushing mechanism, and the telescopic end of the pushing mechanism is fixedly connected with the punching head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921888949.4U CN212144138U (en) | 2019-11-05 | 2019-11-05 | Punching device for automobile door buckle hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921888949.4U CN212144138U (en) | 2019-11-05 | 2019-11-05 | Punching device for automobile door buckle hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212144138U true CN212144138U (en) | 2020-12-15 |
Family
ID=73704572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921888949.4U Expired - Fee Related CN212144138U (en) | 2019-11-05 | 2019-11-05 | Punching device for automobile door buckle hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212144138U (en) |
-
2019
- 2019-11-05 CN CN201921888949.4U patent/CN212144138U/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 |
Granted publication date: 20201215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |