A curved surface bending die suitable for arc-shaped plate

Abstract

The utility model relates to related technical field of plate processing mould especially, a kind of curved surface bending mould suitable for arc plate, a kind of curved surface bending mould suitable for arc plate, including installation base, the side surface of installation base is provided with plate positioning mechanism, the side surface of plate positioning mechanism is provided with movable mounting mechanism.This kind of curved surface bending mould suitable for arc plate, by the setting of plate positioning mechanism, drive motor drives linkage belt and positioning screw, so that mobile slider carries flexible circular arc positioning gasket horizontal movement, self-adapting adjustment clamping arc plate, symmetrically fixed in positioning base, improve compatibility, stability and processing accuracy;Through the setting of movable mounting mechanism, utilize installation male piece and the slope cooperation of limiting female piece, multiple spring elastic force and remove pull plate unlocking structure, realize the quick installation and fixed of forming mould and lossless disassembly, shorten the die changing time, satisfy the diversification production demand, reduce operation complexity.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing mold technology, and in particular to a curved surface bending mold adapted to curved sheet metal. Background Technology

[0002] In the sheet metal processing industry, with the increasing demands of modern industry for product appearance design and structural performance, the application of curved sheet metal is growing, such as the arc structure of automobile body panels and curved surface components of aerospace equipment. The bending processing of these curved sheet metals requires the mold to be able to accurately adapt to the curved surface shape in order to ensure bending accuracy and surface quality. Therefore, there is a particular need for a curved surface bending mold that can adapt to curved sheet metals.

[0003] A search revealed Chinese patent CN210305341U, published on April 14, 2020. This patent optimizes the mold structure through the cooperation of various components to achieve one-time bending of sheet metal, thereby improving efficiency, ensuring quality, and reducing costs. It also enhances stability, reduces friction, and increases contact area by incorporating reinforcing plates, limiting blocks and grooves, ball bearings, connecting springs, and elastic rubber pads to facilitate bending. However, this patent does not address whether it can adapt to the diverse needs of sheet metal with different curvatures, nor does it cover the rapid replacement of mold components. When mold wear requires maintenance and replacement, it may consume considerable time and effort, affecting production progress. Therefore, a curved surface bending mold suitable for curved sheet metal is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a curved surface bending mold adapted to curved plates, so as to solve the problem of the existing curved surface bending mold adapted to curved plates mentioned in the background art. However, the existing curved surface bending mold adapted to curved plates may have problems such as unstable positioning and disassembly jamming when facing plates with extreme curvature differences or during high-frequency mold replacement. These problems may occur due to the limited adjustment range of the flexible positioning shims or the fatigue wear of the springs in the movable mounting mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a curved surface bending mold adapted to arc-shaped plates, comprising a mounting base, a support rod fixedly connected to the top of the mounting base, a hydraulic component fixedly connected to the top of the support rod, a stamping part movably mounted at the bottom of the hydraulic component, a forming mold fitting at the bottom of the stamping part, a plate positioning mechanism provided on one side surface of the mounting base, and a movable mounting mechanism provided on one side surface of the forming mold;

[0006] The plate positioning mechanism includes a drive housing, which is fixedly connected to the upper surface of the mounting base. A drive motor is provided on the inner wall surface of the drive housing. A linkage belt is fixedly connected to the output end of the drive motor. A positioning screw is fixedly connected to the side surface of the linkage belt away from the drive motor. A movable slider is threadedly connected to the outer surface of the positioning screw. A positioning base adapted to the movable slider is fixedly connected to one side surface of the drive housing. A positioning pad is fixedly connected to the side surface of the movable slider away from the positioning base.

[0007] Preferably, the movable mounting mechanism includes a mounting male component, which is fixedly connected to the lower surface of the molding die. A limiting female component is attached to one side surface of the mounting male component, and a limiting spring is attached to the side surface of the limiting female component away from the mounting male component. A mold base is fixedly connected to the side surface of the limiting spring away from the limiting female component. A release plate that matches the top end of the mold base is fixedly connected to one side surface of the molding die. A removal pull plate that is slidably connected to the inner wall surface of the release plate is fixedly connected to the top end of the limiting female component. A release spring is fixedly connected to the side surface of the mold base that is attached to the mounting male component.

[0008] Preferably, two sets of the linkage belt and positioning screw are symmetrically arranged around the central axis of one side surface of the positioning base, and the linkage belt and positioning screw intersect perpendicularly in the same horizontal direction.

[0009] Preferably, the movable slider and the positioning pad are arranged in two sets symmetrically about the central axis of the upper surface of the positioning base, and the positioning pad has a flexible arc shape in cross section along the horizontal direction.

[0010] Preferably, the limiting springs are arranged in three sets at equal intervals on one side surface of the limiting female component, and the limiting female component and the removal pull plate are arranged in two sets symmetrically on the central axis of one side surface of the mounting male component.

[0011] Preferably, a hollow groove is formed on one side surface of the release plate, and the removal pull plate is slidably connected to one side surface of the release plate through the hollow groove.

[0012] Preferably, the bottom end of the mounting component is provided with a reset post, and the mounting component is in contact with the release spring through the outer surface of the reset post.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this curved surface bending mold is suitable for curved plates.

[0014] 1. By setting up a plate positioning mechanism, the drive motor drives the linkage belt and positioning screw to rotate, which causes the symmetrically arranged moving slider to move the flexible arc-shaped positioning pad horizontally. The clamping position can be adaptively adjusted according to the curvature of the curved plate. The plate is stably fixed on the positioning base by symmetrical clamping force. This mechanism solves the problems of traditional positioning devices that are difficult to accurately adapt to the curved surface contour of the plate and are prone to offset or slippage during positioning. It significantly improves the compatibility and stability of positioning plates with different curvatures, ensures the positional accuracy of the plate during curved bending processing, and avoids processing defects caused by positioning errors.

[0015] 2. By setting up an active installation mechanism, utilizing the inclined surface cooperation between the installation male component and the limiting female component, the uniform elastic force of multiple sets of limiting springs, and the guiding and resetting effect of the release spring and the reset column, combined with the limiting and locking structure of the removal pull plate and the release plate hollow groove, the rapid installation and fixation and non-destructive disassembly of the forming mold are realized. This mechanism solves the problems of traditional mold installation structures relying on bolt fixation, time-consuming and laborious disassembly, and easy damage to the mold. Through the elastic connection of springs and the quick unlocking design, the mold installation stability can be guaranteed while significantly shortening the mold change time, meeting the needs of rapid switching between different specifications of molds in diversified production, improving production efficiency and reducing operational complexity. Attached Figure Description

[0016] Figure 1 This is a side view of the appearance structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the drive housing structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the positioning base of this utility model;

[0019] Figure 4 This is a schematic diagram of the mutual cooperation between the limiting spring and the limiting female part of this utility model.

[0020] In the diagram: 1. Mounting base; 2. Support rod; 3. Hydraulic components; 4. Stamping parts; 5. Forming mold; 6. Sheet metal positioning mechanism; 601. Drive housing; 602. Drive motor; 603. Linkage belt; 604. Positioning screw; 605. Moving slider; 606. Positioning base; 607. Positioning pad; 7. Movable mounting mechanism; 701. Mounting male component; 702. Limiting female component; 703. Limiting spring; 704. Press mold base; 705. Release plate; 706. Removal pull plate; 707. Release spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a curved bending mold adapted to arc-shaped plates, including a mounting base 1, a support rod 2 fixedly connected to the top of the mounting base 1, a hydraulic component 3 fixedly connected to the top of the support rod 2, a stamping part 4 movably mounted at the bottom of the hydraulic component 3, a forming mold 5 attached to the bottom of the stamping part 4, a plate positioning mechanism 6 provided on one side surface of the mounting base 1, and a movable mounting mechanism 7 provided on one side surface of the forming mold 5.

[0023] The plate positioning mechanism 6 includes a drive housing 601, which is fixedly connected to the upper surface of the mounting base 1. A drive motor 602 is mounted on the inner wall surface of the drive housing 601. A linkage belt 603 is fixedly connected to the output end of the drive motor 602. A positioning screw 604 is fixedly connected to the side of the linkage belt 603 away from the drive motor 602. A movable slider 605 is threadedly connected to the outer surface of the positioning screw 604. A positioning base 606, adapted to the movable slider 605, is fixedly connected to one side surface of the drive housing 601. The movable slider 605 is located away from... A positioning pad 607 is fixedly connected to one side surface of the positioning base 606. With the setting of the plate positioning mechanism 6, during use, the drive motor 602 drives the positioning screw 604 to rotate through the linkage belt 603, and the moving slider 605 moves horizontally along the positioning screw 604, which drives the positioning pad 607 to approach the positioning base 606. The flexible arc-shaped positioning pad 607 adaptively conforms to the contour of the arc-shaped plate, clamping and fixing the plate. It can stably fix the arc-shaped plate on the positioning base 606, avoiding the plate from shifting or sliding during bending, and ensuring processing accuracy.

[0024] Furthermore, the movable mounting mechanism 7 includes a mounting male component 701, which is fixedly connected to the lower surface of the molding die 5. A limiting female component 702 is attached to one side of the mounting male component 701. A limiting spring 703 is attached to the side of the limiting female component 702 away from the mounting male component 701. A mold base 704 is fixedly connected to the side of the limiting spring 703 away from the limiting female component 702. A release plate 705, which matches the top of the mold base 704, is fixedly connected to one side of the molding die 5. A removal pull plate 706, which slides on the inner wall surface of the release plate 705, is fixedly connected to the top of the limiting female component 702. A release spring 707 is fixedly connected to the side of the mold base 704 that is attached to the mounting male component 701. Through the arrangement of the movable mounting mechanism 7... When in use, align the mounting male part 701 below the molding mold 5 with the limiting female part 702 and press it down. The inclined surface of the mounting male part 701 pushes the limiting female part 702, compressing the limiting spring 703. The release spring 707 is also compressed due to the pressing down. After the mounting male part 701 is inserted into the slot, the limiting spring 703 rebounds, and the limiting female part 702 fits against the mounting male part 701. The removal pull plate 706 passes through the hollow groove of the release plate 705 to lock the limiting female part 702, completing the installation. When disassembling, pull the removal pull plate 706, and the limiting female part 702 is released under the action of the limiting spring 703. The release spring 707 pushes the mounting male part 701 to rebound, realizing the mold disassembly. It can realize the quick installation and fixation of the molding mold 5, and the disassembly is convenient. It is easy to replace molds of different specifications and can adapt to diversified production needs.

[0025] Furthermore, two sets of linkage belts 603 and positioning screws 604 are symmetrically arranged around the central axis of one side surface of the positioning base 606. The linkage belts 603 and positioning screws 604 intersect perpendicularly in the same horizontal direction. Through the arrangement of linkage belts 603 and positioning screws 604, the two sets of positioning screws 604 can rotate synchronously during use, driving the moving slider 605 to move symmetrically, ensuring that the clamping force of the positioning pad 607 on the plate is uniform and improving the positioning stability.

[0026] Furthermore, two sets of movable sliders 605 and positioning pads 607 are symmetrically arranged around the central axis of the upper surface of the positioning base 606. The positioning pads 607 have a flexible arc-shaped cross section in the horizontal direction. With the arrangement of movable sliders 605 and positioning pads 607, during use, the symmetrical flexible arc-shaped positioning pads 607 can adaptively fit the curved surface of the curved plate, enhancing the compatibility and clamping fit of plates with different curvatures.

[0027] Furthermore, three sets of limit springs 703 are equidistantly arranged on one side surface of the limit female part 702, and two sets of limit female parts 702 and removal pull plates 706 are symmetrically arranged on the central axis of one side surface of the mounting male part 701. Through the arrangement of limit springs 703, limit female parts 702 and removal pull plates 706, a uniform and stable clamping force can be provided by multiple sets of limit springs 703 during use. Combined with the symmetrical limit female parts 702 and removal pull plates 706, it is ensured that the forces on both sides of the mounting male part 701 are balanced, thereby improving the stability of the mold installation.

[0028] Furthermore, a hollow groove is provided on one side surface of the release plate 705. The removal pull plate 706 is slidably connected to one side surface of the release plate 705 through the hollow groove. By providing a hollow groove in the release plate 705, the position of the limiting mother piece 702 can be locked by limiting the removal pull plate 706 during use. At the same time, it is easy to quickly release the limit by pulling the removal pull plate 706, so as to achieve flexible switching of the mold installation state.

[0029] Furthermore, a reset post is provided at the bottom of the mounting component 701. The mounting component 701 is in contact with the release spring 707 through the outer surface of the reset post. By providing a reset post at the bottom of the mounting component 701, the reset post can provide support and guidance for the release spring 707 during use, ensuring that the release spring 707 can stably release elastic potential energy during mold disassembly, pushing the mounting component 701 to accurately reset, and improving the smoothness of mold disassembly.

[0030] Working Principle: When the equipment starts running, an external power supply powers the entire system. Before use, the mold to be processed needs to be installed on the processing platform to meet the needs of actual production and life. Align the mounting male part 701 below the forming mold 5 with the limiting female part 702 on the mold base 704, and press the forming mold 5 down. At this time, the inclined surface of the mounting male part 701 pushes the limiting female part 702 to move to both sides, and the limiting spring 703 is compressed and stores energy. At the same time, the release spring 707, that is, the release spring 707 sleeved on the outside of the reset post, is also compressed due to the downward pressure of the mounting male part 701. When the mounting male part 701 is fully inserted into the slot of the limiting female part 702, the limiting spring 703 releases its elasticity, pushing the limiting female part 702 down. The new fitting is installed on the side of the male component 701. At the same time, the removal pull plate 706 at the top of the limiting female component 702 passes through the hollow groove of the release plate 705 and is limited by the inner wall of the release plate 705, thereby locking the limiting female component 702 on both sides of the male component 701, completing the quick installation and fixation of the forming mold 5. The arc-shaped plate to be processed is placed on the top of the forming mold 5, so that the edge of the plate is aligned with the positioning base 606. The drive motor 602 is started, and the linkage belt 603 drives the two symmetrically arranged positioning screws 604 to rotate synchronously. The moving slider 605 moves horizontally along the positioning screws 604 due to the threaded connection. The two sets of moving sliders 605 drive the positioning pad 607 to gradually approach the positioning base 606. Due to the positioning pad 607 The horizontal cross-section is a flexible arc shape, which can adaptively conform to the curved contour of the curved sheet. The sheet is stably fixed on the positioning base 606 by symmetrical clamping force, avoiding the sheet from shifting or sliding during bending. After positioning, the hydraulic component 3 is activated, driving the stamping part 4 to move downward. The forming mold 5 at the bottom of the stamping part 4 then applies vertical pressure to the fixed curved sheet. During the stamping process, the release plate 705 moves down synchronously with the forming mold 5. The limiting female part 702 is always in close contact with the mounting male part 701 under the elastic force of the limiting spring 703, ensuring the stability of the mold installation structure. The release spring 707 provides buffer support for the forming mold 5 through the reset column, avoiding damage to the mold due to rigid contact. When the stamping part 4 reaches When the stroke is set, the sheet metal is pressed into shape, completing the curved bending. When the mold needs to be disassembled, the removal plate 706 is pulled upward to disengage it from the slot limit of the release plate 705. The unconstrained limit female part 702 moves to both sides under the elastic force of the limit spring 703, releasing the clamping of the mounting male part 701. At this time, the release spring 707 sleeved on the outside of the reset column releases elastic potential energy, pushing the mounting male part 701 to spring upward and separate from the limit female part 702. Finally, the forming mold 5 can be easily removed, which is convenient for changing molds of different specifications to adapt to diversified production needs. The drive motor 602 is model YE2-132S-4. This completes the use process of a curved bending mold adapted to curved sheet metal.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curved bending die for curved sheet metal, comprising a mounting base (1), wherein a support rod (2) is fixedly connected to the top end of the mounting base (1), a hydraulic assembly (3) is fixedly connected to the top end of the support rod (2), a stamping part (4) is movably mounted on the bottom end of the hydraulic assembly (3), and a forming die (5) is attached to the bottom end of the stamping part (4), characterized in that: The mounting base (1) has a plate positioning mechanism (6) on one side surface, and the molding mold (5) has a movable mounting mechanism (7) on one side surface. The plate positioning mechanism (6) includes a drive housing (601), which is fixedly connected to the upper surface of the mounting base (1). A drive motor (602) is provided on the inner wall surface of the drive housing (601). A linkage belt (603) is fixedly connected to the output end of the drive motor (602). A positioning screw (604) is fixedly connected to the side surface of the linkage belt (603) away from the drive motor (602). A movable slider (605) is threadedly connected to the outer surface of the positioning screw (604). A positioning base (606) adapted to the movable slider (605) is fixedly connected to one side surface of the drive housing (601). A positioning pad (607) is fixedly connected to the side surface of the movable slider (605) away from the positioning base (606).

2. The curved surface bending die adapted to arc-shaped plates according to claim 1, characterized in that: The movable installation mechanism (7) includes an installation male part (701), which is fixedly connected to the lower surface of the molding die (5). A limiting female part (702) is attached to one side surface of the installation male part (701). A limiting spring (703) is attached to the side surface of the limiting female part (702) away from the installation male part (701). A mold base (704) is fixedly connected to the side surface of the limiting spring (703) away from the limiting female part (702). A release plate (705) that matches the top of the mold base (704) is fixedly connected to one side surface of the molding die (5). A removal pull plate (706) that slides on the inner wall surface of the release plate (705) is fixedly connected to the top of the limiting female part (702). A release spring (707) is fixedly connected to the side surface of the mold base (704) attached to the installation male part (701).

3. The curved surface bending die for adapting to arc-shaped plates according to claim 1, characterized in that: The linkage belt (603) and the positioning screw (604) are arranged in two sets symmetrically about the central axis of one side surface of the positioning base (606), and the linkage belt (603) and the positioning screw (604) intersect perpendicularly in the same horizontal direction.

4. The curved surface bending die for adapting to arc-shaped plates according to claim 1, characterized in that: The movable slider (605) and the positioning pad (607) are arranged in two sets symmetrically about the central axis of the upper surface of the positioning base (606), and the positioning pad (607) has a flexible arc shape in the horizontal cross section.

5. A curved surface bending die adapted to arc-shaped plates according to claim 2, characterized in that: The limiting spring (703) is provided in three sets at equal intervals on one side surface of the limiting female part (702), and the limiting female part (702) and the removal pull plate (706) are provided in two sets symmetrically on the central axis of one side surface of the mounting male part (701).

6. A curved surface bending die adapted to arc-shaped plates according to claim 2, characterized in that: The release plate (705) has a hollow groove on one side surface, and the removal pull plate (706) is slidably connected to one side surface of the release plate (705) through the hollow groove.

7. A curved surface bending die adapted to arc-shaped plates according to claim 2, characterized in that: The mounting component (701) has a reset post at its bottom end, and the mounting component (701) is in contact with the release spring (707) through the outer surface of the reset post.

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