CN220028337U - Negative angle flanging mechanism capable of being movably positioned - Google Patents

Negative angle flanging mechanism capable of being movably positioned Download PDF

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Publication number
CN220028337U
CN220028337U CN202321383967.3U CN202321383967U CN220028337U CN 220028337 U CN220028337 U CN 220028337U CN 202321383967 U CN202321383967 U CN 202321383967U CN 220028337 U CN220028337 U CN 220028337U
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China
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lower die
block
flanging
die
negative angle
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CN202321383967.3U
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Chinese (zh)
Inventor
李爽
王耀宗
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Suzhou Weiboda Auto Parts Co ltd
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Suzhou Weiboda Auto Parts Co ltd
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Abstract

The utility model provides a movable positioning negative angle flanging mechanism, which comprises: the upper pressing plate is connected with the upper die base through a first nitrogen spring, the upper die insert is fixed to the upper die base and located on the left side of the upper pressing plate, the lower die flanging cutter block is fixed to the lower die base and located below the upper pressing plate, a movable locating component is arranged in the upper die insert, the upper end of the locating component stretches out of the lower die flanging cutter block and is used for product locating, the lower die driving block is arranged on the lower die base and located below the upper die insert, a second nitrogen spring is arranged at the right end of the lower die driving block, the stroke of the second nitrogen spring is larger than that of the first nitrogen spring, and an elastic structure used for resetting the locating component is further arranged in the lower die flanging cutter block. The utility model realizes the negative angle flanging of the product and the withdrawal action after the flanging is completed, has simple design structure and can be suitable for the limited machine tool table top.

Description

Negative angle flanging mechanism capable of being movably positioned
Technical Field
The utility model relates to the technical field of stamping dies, in particular to a movable positioning negative angle flanging mechanism.
Background
In the field of stamping dies, various flanging mechanisms exist for accomplishing vertical, horizontal or inclined flanging from different angles, and straight walls or flanges with certain angles are formed on blanks along closed or non-closed curve edges.
When the punched product has a negative angle, the lower die flanging knife block of the flanging mechanism needs to be designed and positioned, so that the product can be accurately positioned when being placed, the conventional positioning mode is fixed, the product with the negative angle can not be placed in a die or taken out, the product can be placed in or taken out by adopting the form of an inclined sliding block, and the die structure and the larger die size are required, so that the die structure is not applicable to a limited machine tool table.
Therefore, there is a need for improvements in the prior art that allow the positioning form to be made movable, and that allow for entry and exit of the negative angle flange of the product with a more compact structure.
Disclosure of Invention
The utility model provides a movable positioning negative angle flanging mechanism, which is used for solving the problems.
The utility model adopts a technical scheme that: provided is a negative angle flanging mechanism capable of being movably positioned, comprising: the upper die insert cutter is fixed to the upper die base, is located on the left side of the upper die base, the lower die flanging cutter block is fixed to the lower die base, is located below the upper die base, is internally provided with a movable positioning component, the upper end of the positioning component extends out of the lower die flanging cutter block and is used for positioning a product, the lower die drive block is arranged on the lower die base and is located below the upper die insert cutter, the right end of the lower die drive block is provided with a second nitrogen spring, the stroke of the second nitrogen spring is larger than that of the first nitrogen spring, when the die is closed, the upper die insert cutter pushes the lower die drive block to the right, the second nitrogen spring drive end extends into the lower die flanging cutter block and pushes the positioning component and the product to move to the flanging position to the right, and the upper die, the lower die flanging cutter block and the lower die drive block are matched to finish negative angle flanging of the product, and an elastic structure for resetting the positioning component is further arranged in the lower die cutter block.
Further, the locating component comprises a locating pin and a locating pin driving block, wherein the locating pin driving block is arranged in the lower die flanging knife block in a sliding manner through a guide sliding block, the locating pin is arranged in the locating pin driving block, and the upper end of the locating pin is extended out of the lower die flanging knife block and is used for locating products.
Further, the lower surface of the upper pressing plate is provided with a space for the positioning pin to horizontally move.
Further, the elastic structure is a wire spring, the left end of the elastic structure is in contact with the locating pin driving block, and when the die is closed, the locating pin driving block moves rightwards to compress the wire spring.
Further, an anti-side block is further arranged on the lower die base and is arranged in a staggered mode with the upper die insert knife, and the retreating position of the lower die driving block is limited.
Further, the anti-side block is also provided with a wear-resisting plate which is positioned at a position contacted with the upper die insert cutter when the die is closed.
Furthermore, the lower surface of the upper pressing plate is provided with a yielding design matched with the molded surface of the product.
The negative angle flanging mechanism capable of being movably positioned has the beneficial effects that:
1. set up mobilizable locating component in lower mould turn-ups sword piece, push away locating component to the turn-ups position through last mould slotting tool and lower mould turn-ups sword piece cooperation when closing the mould, make locating component to fall back through elastic structure when opening the mould, realized the negative angle turn-ups of product and the action of withdrawing after the turn-ups is accomplished, design simple structure can adapt to limited lathe mesa.
Drawings
FIG. 1 is a schematic diagram showing a mold opening state of a movable positioning negative angle flanging mechanism according to a first embodiment of the present utility model;
FIG. 2 is a schematic diagram showing a mold closing state of a movable positioning negative angle flanging mechanism according to a first embodiment of the present utility model;
FIG. 3 is a schematic diagram of a lower die flanging knife block in a die-opening state;
the components in the drawings are marked as follows: 1. the device comprises an upper die holder, 2, a lower die holder, 3, an upper pressing plate, 4, an upper die insert cutter, 5, a lower die flanging cutter block, 6, a lower die driving block, 7, a side prevention block, 31, a first nitrogen spring, 51, a positioning component, 52, an elastic structure, 61, a second nitrogen spring, 71, a wear-resisting plate, 511, a positioning pin, 512, a positioning pin driving block, 513, a guide block, 521, a wire spring, 522 and a screw plug.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "horizontal," "vertical," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the components or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 to 3, a first embodiment of the present utility model provides a movable positioning negative angle flanging mechanism, which includes: an upper pressing plate 3, an upper die slotting tool 4, a lower die flanging tool block 5 and a lower die driving block 6;
the upper pressing plate 3 is connected with the upper die holder 1 through a first nitrogen spring 31, the upper pressing plate 3 is arranged at the driving end of the first nitrogen spring 31, the upper pressing plate 3 is responsible for pressing products when the die is closed, an upper base plate is also arranged on the upper die holder 1, and the first nitrogen spring 31 is arranged in the upper base plate;
the upper die insert 4 is fixed on the upper die holder 1 and is positioned at the left side of the upper pressing plate 3, the end part of the upper die insert is provided with a wedge surface, and the upper die insert and the lower die holder 2 move in the horizontal direction under the action of the corresponding structure when the die is closed;
the lower die flanging knife block 5 is fixed to the lower die holder 2 and is positioned below the upper pressing plate 3, a movable positioning component 51 is arranged in the lower die flanging knife block, the upper end of the positioning component 51 extends out of the lower die flanging knife block 5 and is used for positioning a product, the product is placed on the lower die flanging knife block 5 through the positioning component 51, and when the positioning component 51 moves, the product moves along with the lower die flanging knife block;
the lower die driving block 6 is arranged on the lower die holder 2 and is positioned below the upper die slotting tool 4, the right end of the lower die slotting tool is provided with a second nitrogen spring 61, the stroke of the second nitrogen spring 61 is larger than that of the first nitrogen spring 31, when the die is closed, the upper die slotting tool 4 pushes the lower die driving block 6 to the right, the driving end of the second nitrogen spring 61 stretches into the lower die flanging tool block 5 and pushes the positioning component 51 and the product to move to the flanging position to the right, at the moment, the structure to be flanged at the left end of the product touches the flanging end of the lower die flanging tool block 5, the upper pressing plate 3 continuously presses the product downwards, and meanwhile, the right end of the lower die driving block 6 pushes the edge of the product to be matched with the lower die flanging tool block 5 to finish negative angle flanging of the product;
the lower die flanging knife block 5 is also internally provided with an elastic structure 52 for resetting the positioning component 51, when the die is closed, the positioning component 51 moves rightwards to compress the elastic structure 52, and when the die is opened, the elastic structure 52 rebounds to reset the positioning component 51, so that a product is taken away from the flanging end part of the lower die flanging knife block 5, and the product is smoothly withdrawn.
The positioning assembly 51 comprises a positioning pin 511 and a positioning pin driving block 512, the positioning pin driving block 512 is slidably arranged in the lower die flanging knife block 5 through a guide sliding block 513, the positioning pin 511 is vertically arranged in the positioning pin driving block 512, and the upper end of the positioning pin 511 extends out of the lower die flanging knife block 5 and is used for positioning a product so that the product moves left and right along with the product.
Specifically, the lower surface of the upper platen 3 has a space for the positioning pins 511 to move horizontally, and the upper platen 3 presses the product after the positioning pins 511 move into place.
The elastic structure 52 in the lower die flanging knife block 5 is provided with two wire springs 521, two screw holes in the horizontal direction are formed in the lower die flanging knife block 5, one end of each screw hole is communicated with a cavity where the positioning component 51 moves, one end of each screw hole is communicated with the side face of the lower die flanging knife block 5, the wire springs 521 are arranged in the screw holes, the left end of each screw hole contacts the positioning pin driving block 512, the right end of each screw hole is fixed through a screw plug 522, the state of each wire spring 521 is adjusted through adjusting the position of each screw plug 522, the limiting effect is achieved, and when the die is closed, the positioning pin driving blocks 512 move right to compress the wire springs 521.
The lower die holder 2 is further provided with a lower base plate and an anti-side block 7, the lower base plate and the anti-side block 7 are used for adjusting and limiting the position and the movement range of the lower die driving block 6, the anti-side block 7 and the upper die slotting tool 4 are arranged in a staggered mode, when the die is closed, the upper die slotting tool 4 moves downwards, the end part of the upper die slotting tool is attached to the anti-side block 7 downwards, friction exists between the end part of the upper die slotting tool and the anti-side block 7, the lower die slotting tool interacts with the wedge surface of the lower die driving block 6, the lower die driving block 6 is pushed to move rightwards, and in the process, the anti-side block 7 abuts against the upper die slotting tool 4, and the retreating position of the lower die driving block 6 is limited when the die is opened.
Specifically, the anti-side block 7 is further provided with a wear-resistant plate 71, which is positioned in a contact area with the upper die insert 4 during die closing, and slows down wear.
The lower surface of the upper pressing plate 3 is also provided with a yielding design matched with the molded surface of the product so as to better press the product and avoid deformation and damage of the product during negative angle flanging.
The negative angle flanging mechanism capable of being movably positioned has the beneficial effects that:
1. the movable positioning component is arranged in the lower die flanging knife block, the positioning component is pushed to the flanging position by the cooperation of the upper die slotting tool and the lower die flanging knife block when the die is closed, and the positioning component is retracted by an elastic structure when the die is opened, so that the negative angle flanging of a product and the withdrawal action after the flanging is completed are realized, the design structure is simple, and the die is suitable for limited machine tool tops;
2. the positioning pin driving block is arranged in the flanging knife block of the lower die in a sliding manner through the guide sliding block, so that the positioning pin stably moves in the horizontal direction, the product is ensured to accurately reach the flanging position, the rebound of the wire spring is matched, and the product is ensured to smoothly exit;
3. the side block is prevented, support is provided for the upper die slotting tool during die closing, the lower die driving block is limited during die opening, die safety is guaranteed, and die service life is prolonged.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. A negative angle flanging mechanism capable of being movably positioned, which is characterized by comprising: the upper die insert cutter is fixed to the upper die base, is located on the left side of the upper die base, the lower die flanging cutter block is fixed to the lower die base, is located below the upper die base, is internally provided with a movable positioning component, the upper end of the positioning component extends out of the lower die flanging cutter block and is used for positioning a product, the lower die drive block is arranged on the lower die base and is located below the upper die insert cutter, the right end of the lower die drive block is provided with a second nitrogen spring, the stroke of the second nitrogen spring is larger than that of the first nitrogen spring, when the die is closed, the upper die insert cutter pushes the lower die drive block to the right, the second nitrogen spring drive end extends into the lower die flanging cutter block and pushes the positioning component and the product to move to the flanging position to the right, and the upper die, the lower die flanging cutter block and the lower die drive block are matched to finish negative angle flanging of the product, and an elastic structure for resetting the positioning component is further arranged in the lower die cutter block.
2. The movable positioning negative angle flanging mechanism of claim 1, wherein the positioning assembly comprises a positioning pin and a positioning pin driving block, the positioning pin driving block is slidably arranged in the lower die flanging knife block through a guide sliding block, the positioning pin is arranged in the positioning pin driving block, and the upper end of the positioning pin extends out of the lower die flanging knife block for product positioning.
3. The negative angle flanging mechanism for movable positioning according to claim 2, wherein the lower surface of the upper platen has a space for the positioning pin to move horizontally.
4. The negative angle flanging mechanism capable of being movably positioned according to claim 2, wherein the elastic structure is a wire spring, the left end of the elastic structure contacts with the positioning pin driving block, and the positioning pin driving block moves rightward to compress the wire spring when the mold is closed.
5. A negative angle flanging mechanism for movable positioning according to any one of claims 1-4, wherein the upper platen lower surface has a relief design that matches the product profile.
6. The negative angle flanging mechanism capable of being movably positioned according to any one of claims 1-4, wherein the lower die holder is further provided with an anti-side block, which is arranged in a dislocation manner with the upper die insert, so as to limit the retreating position of the lower die driving block.
7. The negative angle flanging mechanism capable of being movably positioned according to claim 5, wherein the anti-side block is further provided with a wear plate at a position which is in contact with the upper die insert cutter when the die is closed.
8. The negative angle turning mechanism of claim 7, wherein the lower surface of the upper platen has a relief design that mates with the product profile.
CN202321383967.3U 2023-06-02 2023-06-02 Negative angle flanging mechanism capable of being movably positioned Active CN220028337U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321383967.3U CN220028337U (en) 2023-06-02 2023-06-02 Negative angle flanging mechanism capable of being movably positioned

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321383967.3U CN220028337U (en) 2023-06-02 2023-06-02 Negative angle flanging mechanism capable of being movably positioned

Publications (1)

Publication Number Publication Date
CN220028337U true CN220028337U (en) 2023-11-17

Family

ID=88726236

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321383967.3U Active CN220028337U (en) 2023-06-02 2023-06-02 Negative angle flanging mechanism capable of being movably positioned

Country Status (1)

Country Link
CN (1) CN220028337U (en)

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