CN211679591U - Anti-rebound structure of flanging die - Google Patents
Anti-rebound structure of flanging die Download PDFInfo
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- CN211679591U CN211679591U CN201922226511.6U CN201922226511U CN211679591U CN 211679591 U CN211679591 U CN 211679591U CN 201922226511 U CN201922226511 U CN 201922226511U CN 211679591 U CN211679591 U CN 211679591U
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Abstract
The utility model provides a structure of kick-backing is prevented to turn-ups mould, include: an upper die; the lower die comprises a lower die body and mounting plates, the two mounting plates are fixedly mounted on two sides of the lower die body respectively, an opening preventing mechanism for preventing a workpiece from being opened outwards is mounted in each mounting plate, the opening preventing mechanism is rotatably connected with the mounting plates, and a guide hole is formed in the lower die body; the ejection mechanism is arranged in the guide hole and is positioned below the opening prevention mechanism; the opening prevention mechanism is provided with a first binding surface, the lower die body is provided with a second binding surface, and the first binding surface is bound with the second binding surface during stamping; the mounting plate is also provided with a limiting plate for limiting the anti-opening mechanism, and when the stamping is finished, the ejection mechanism jacks up the anti-opening mechanism and enables the anti-opening mechanism to be in contact with the limiting plate. The edge of the workpiece keeps unchanged in shape after being turned over, and the workpiece cannot be opened outwards, so that the product quality requirement is met, and the product quality is improved.
Description
Technical Field
The utility model belongs to the technical field of automobile parts makes, in particular to structure of kick-backing is prevented to turn-ups mould.
Background
Flanging refers to a method for forming a straight wall or a flange with a certain angle along a closed or unclosed curve edge on a plane part or a curved part of a blank by using the action of a die. Flanging is one of the stamping processes. The types of the flanging are various, and the classification methods are different. Wherein the stretch type cuffs can be divided into extension type cuffs and compression type cuffs according to deformation properties. Original flanging dies is the 1 direction motion of mould 3 orientation down, then punching press work piece 2 is by extrusion deformation, control the turn-ups through dog 4, to some relatively thick steel sheets, its modulus of elasticity is higher, plasticity is poor, lead to the outside uncovered of work piece edge after the turn-ups, be not conform to the product quality requirement, the rejection rate is very high, cause very big influence to the product quality, manufacture factory is in order to accomplish to accord with the product quality requirement, often can add one process, perhaps carry out manual repair, and production cost increases, low efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current turn-ups mould when punching press some relatively thick steel sheets, the work piece edge after the turn-ups is outwards uncovered, is not conform to the product quality requirement, and the rejection rate is very high, causes the technical problem of very big influence to product quality, provides a turn-ups mould prevent kick-back structure, has turn-ups back work piece edge and keeps the shape unchangeable, can not outwards uncovered, accords with the product quality requirement, the effect that product quality improves.
The utility model provides a technical scheme does:
the utility model provides a turn-ups mould prevent resilience structure, includes:
an upper die;
the lower die comprises a lower die body and mounting plates, the two mounting plates are fixedly mounted on two sides of the lower die body respectively, an opening preventing mechanism for preventing a workpiece from being opened outwards is mounted in each mounting plate, the opening preventing mechanism is rotatably connected with the mounting plates, and a guide hole is formed in the lower die body;
the ejection mechanism is arranged in the guide hole and is positioned below the opening prevention mechanism;
the opening prevention mechanism is provided with a first binding surface, the lower die body is provided with a second binding surface, and the first binding surface is bound with the second binding surface during stamping;
the mounting plate is also provided with a limiting plate for limiting the anti-opening mechanism, and when the stamping is finished, the ejection mechanism jacks up the anti-opening mechanism and enables the anti-opening mechanism to be in contact with the limiting plate.
Preferably, the mounting plate is of a door-shaped structure, and the upper cross beam on the mounting plate is a limiting plate.
Preferably, the opening prevention mechanism includes:
the forming body is rotatably connected with the mounting plate through the rotating shaft, the lower surface of the forming body is a first attaching surface, the upper surface of the forming body is a third attaching surface, the first attaching surface is attached to the second attaching surface during stamping, and the ejection mechanism ejects the forming body and enables the forming body to rotate around the rotating shaft after stamping is completed so that the third attaching surface is in contact with the limiting plate.
Preferably, a rotation space for facilitating rotation of the molded body is provided on the lower die body.
Preferably, the ejection mechanism includes:
the top column is in sliding fit with the guide hole;
and the compression spring is arranged in the guide hole and is positioned between the top column and the bottom surface of the guide hole.
Preferably, the end of the top pillar and the end of the molded body are each provided with a rounded corner to prevent scratching of the surface of the part.
The beneficial effects of the utility model are embodied in the following aspect:
the forming body is rotatably connected with the mounting plate, when in stamping, the workpiece is not suddenly deformed but gradually deformed, the resilience force of the workpiece can be effectively overcome, and the requirement can be met without correction after the stamping is finished, so that the working efficiency is high, and the yield is high.
Drawings
Fig. 1 is a schematic diagram of stamping of a prior product.
Fig. 2 is a schematic structural diagram of the present invention during stamping.
Fig. 3 is a schematic structural view of the present invention after the completion of the stamping.
Fig. 4 is a partial enlarged view of fig. 2 of the present invention.
In the figure: 1. the die comprises a lower die, 101, a lower die body, 102, a guide hole, 103, a compression spring, 104, a top column, 105, a forming body, 106, a limiting plate, 107, a first bonding surface, 108, a mounting plate, 109, a rotating shaft, 110, a rotating space, 111, a second bonding surface, 112, a fillet, 2, a workpiece, 3, an upper die, 4 and a stop block.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1-4, the utility model provides a structure of kick-backing is prevented to turn-ups mould, include:
an upper mold 3;
the lower die comprises a lower die 1, wherein the lower die 1 comprises a lower die body 101 and mounting plates 108, the two mounting plates 108 are fixedly mounted on two sides of the lower die body 101 respectively, an opening prevention mechanism for preventing a workpiece from being opened outwards is mounted in the mounting plates 108, the opening prevention mechanism is rotatably connected with the mounting plates 108, and guide holes 102 are formed in the lower die body 101;
the ejection mechanism is arranged in the guide hole 102 and is positioned below the opening prevention mechanism;
the opening prevention mechanism is provided with a first attaching surface 107, the lower die body 101 is provided with a second attaching surface 111, and the first attaching surface 107 is attached to the second attaching surface 111 during stamping;
the mounting plate 108 further has a limiting plate 106 for limiting the opening prevention mechanism, and when the punching is completed, the ejection mechanism ejects the opening prevention mechanism and makes the opening prevention mechanism contact with the limiting plate 106.
The working principle is as follows: the anti-opening mechanism is rotatably connected with the mounting plate 108, the workpiece 2 is placed above the lower die 1, the workpiece 2 is punched downwards by the upper die 3, when the workpiece 2 moves downwards, the anti-opening mechanism rotates downwards along with the workpiece, the first binding surface 107 is bound with the second binding surface 111, the damage of the anti-opening mechanism or the failure of punching caused by overlarge acting force can be prevented, the workpiece 2 is punched and formed while rotating, in the process, the ejection mechanism is in a compressed state, the phenomenon that the outer edge of the workpiece 2 is opened can be effectively prevented, the effect is better compared with the direct punching, the yield is high, after punching is finished, the upper die 3 is lifted, the ejection mechanism moves upwards, the anti-opening mechanism is pushed to rotate upwards and the workpiece 2 moves upwards, the convenient taking-out of the workpiece 2 is ensured, in order to prevent the anti-opening mechanism from rotating over the head and prevent the ejection mechanism from being separated from the anti-opening, set up limiting plate 106 on mounting panel 108, ejection mechanism promotes when preventing uncovered mechanism and rotates to a certain extent, prevents uncovered mechanism and limiting plate 106 contact, prevents that uncovered mechanism is further rotatory, has guaranteed that ejection mechanism and uncovered mechanism can contact all the time, and ejection mechanism can have incessant effort to preventing uncovered mechanism, has guaranteed to work and has continued going on.
The mounting plate 108 is a door-shaped structure, and the upper beam on the mounting plate 108 is the limiting plate 106.
Prevent uncovered mechanism includes:
the molded body 105 is rotatably connected to the mounting plate 108 via a rotating shaft 109, the lower surface of the molded body 105 is a first contact surface 107, the upper surface of the molded body 105 is a third contact surface, the first contact surface 107 and the second contact surface 111 are contacted during pressing, and the ejection mechanism ejects the molded body 105 and rotates the molded body 105 around the rotating shaft 109 to contact the third contact surface with the stopper plate 106 after pressing.
The working principle is as follows: as shown in fig. 3, a punching surface of the forming body 105 is the shape of the workpiece 2, the forming body 105 is rotatably connected with the mounting plate 108 through a rotating shaft 109, the workpiece 2 is placed above the forming body 105, the upper die 3 moves downwards to press the workpiece 2, so that the forming body 105 rotates downwards around the rotating shaft 109 until the first attaching surface 107 is attached to the second attaching surface 111, after the punching is finished, the ejection mechanism ejects upwards to apply force to the forming body 105 and the workpiece 2, so that the forming body 105 rotates upwards around the rotating shaft 109 until the third attaching surface 106 of the forming body 105 is finished, and in the process, the workpiece 2 is lifted up, so that an operator can take the workpiece 2 out conveniently; it will be appreciated that the two shaped bodies 105 are provided with a gap therebetween for facilitating the rotation thereof, which gap does not affect the formation of the workpiece 2 for a certain thickness of the sheet material.
A rotating space 110 for facilitating the rotation of the molded body is provided on the lower die body 101.
The working principle is as follows: when the forming body 105 rotates around the rotating shaft 109, an external space is needed, otherwise, the forming body 105 collides with the lower die body 101 or the mounting plate 108 during rotation, in order to ensure that the forming body 105 rotates smoothly, a rotating space 110 which is convenient for the forming body to rotate is arranged on the lower die body 101, and the forming body 105 can be ensured to rotate smoothly through the space provided in the rotating space 110 and the mounting plate 108 of the door shape, so that the normal operation of the work is ensured.
The ejection mechanism includes:
a top pillar 104, wherein the top pillar 104 is in sliding fit with the guide hole 102;
and a compression spring 103, wherein the compression spring 103 is arranged in the guide hole 102 and is positioned between the top column 104 and the bottom surface of the guide hole 102.
The working principle is as follows: during punching, the forming body 105 compresses the top pillar 104 and further compresses the compression spring 103, and after punching is completed, the compression spring 103 in a compressed state needs to be restored to an original shape, so that elastic force is provided for the top pillar 104, the top pillar 104 is lifted upwards, and further force is provided for the forming body 105, so that the forming body 105 rotates upwards around the rotating shaft 109, and the workpiece 2 is lifted. The ejection mechanism also can ensure that the forming body 105 is in a working state all the time, ensure that the workpiece 2 is gradually formed instead of suddenly formed during forming, and prevent the outer edge of the workpiece 2 from being open.
The top pillar 104 and the end of the shaped body 105 are provided with a fillet 112 which prevents scratching of the surface of the part.
The working principle is as follows: the top surface of the top pillar 104 is constantly in contact with the lower surface of the forming body 105, namely the first attaching surface 107, and has relative displacement, and similarly, the edge of the end surface of the forming body 105 is also in contact with the lower surface of the workpiece 2 and has relative displacement, in order to prevent scratches caused by the relative displacement, a round angle 112 is provided, the scratch problem caused by the relative displacement can be solved by the round angle 112, and the quality of products and the normal operation of work are ensured.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a turn-ups mould prevent structure of kick-backing which characterized in that includes:
an upper mold (3);
the lower die (1) comprises a lower die body (101) and mounting plates (108), the two mounting plates (108) are fixedly mounted on two sides of the lower die body (101) respectively, an opening prevention mechanism for preventing a workpiece from opening outwards is mounted in each mounting plate (108), the opening prevention mechanism is rotatably connected with the mounting plates (108), and guide holes (102) are formed in the lower die body (101);
the ejection mechanism is arranged in the guide hole (102) and is positioned below the opening prevention mechanism;
the opening prevention mechanism is provided with a first attaching surface (107), the lower die body (101) is provided with a second attaching surface (111), and the first attaching surface (107) is attached to the second attaching surface (111) during stamping;
the mounting plate (108) is further provided with a limiting plate (106) limiting the anti-opening mechanism, and when stamping is completed, the ejection mechanism jacks the anti-opening mechanism and enables the anti-opening mechanism to be in contact with the limiting plate (106).
2. The anti-rebound structure of a flanging die according to claim 1, wherein the mounting plate (108) is a door-shaped structure, and the upper beam on the mounting plate (108) is a limiting plate (106).
3. The structure of claim 1, characterized in that the mechanism for preventing opening of the cover comprises:
the forming body (105), the forming body (105) is connected through pivot (109) rotation with mounting panel (108), the lower surface of forming body (105) is first binding face (107), the upper surface of forming body (105) is the third binding face, and when the punching press, first binding face (107) and second binding face (111) laminating, when the punching press was accomplished, ejection mechanism with forming body (105) jack-up and make forming body (105) rotate around pivot (109), make third binding face and limiting plate (106) contact.
4. The structure of claim 3, wherein a rotating space (110) for facilitating the rotation of the forming body (105) is provided on the lower die body (101).
5. The anti-rebound structure of the flanging die as claimed in claim 4, wherein the ejection mechanism comprises:
a top post (104), wherein the top post (104) is in sliding fit with the guide hole (102);
a compression spring (103), wherein the compression spring (103) is arranged in the guide hole (102) and is positioned between the top column (104) and the bottom surface of the guide hole (102).
6. The structure of claim 5, wherein the top pillar (104) and the forming body (105) are provided with rounded corners (112) at the ends thereof for preventing scratching the surface of the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226511.6U CN211679591U (en) | 2019-12-12 | 2019-12-12 | Anti-rebound structure of flanging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922226511.6U CN211679591U (en) | 2019-12-12 | 2019-12-12 | Anti-rebound structure of flanging die |
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| Publication Number | Publication Date |
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| CN211679591U true CN211679591U (en) | 2020-10-16 |
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| CN201922226511.6U Active CN211679591U (en) | 2019-12-12 | 2019-12-12 | Anti-rebound structure of flanging die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961194A (en) * | 2024-04-02 | 2024-05-03 | 江苏博诚金属制品有限公司 | Automatic nut tapping machine |
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2019
- 2019-12-12 CN CN201922226511.6U patent/CN211679591U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117961194A (en) * | 2024-04-02 | 2024-05-03 | 江苏博诚金属制品有限公司 | Automatic nut tapping machine |
| CN117961194B (en) * | 2024-04-02 | 2024-06-21 | 江苏博诚金属制品有限公司 | Automatic nut tapping machine |
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