Sheet metal traceless bending adjustable die
By designing the positioning limit and support mechanism, the problem of the limited adaptability of traditional sheet metal bending dies has been solved, realizing precise bending of sheet metal parts without damage to the surface and expanding the applicability of the dies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU BOTAN INTELLIGENT EQUIPMENT GROUP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-29
AI Technical Summary
Traditional sheet metal bending processes can easily damage the surface of the workpiece, and existing adjustable die for seamless sheet metal bending cannot adjust the bending area according to the bending position of different sheet metal parts, thus limiting its applicability.
An adjustable die for seamless bending of sheet metal was designed. Through the adjustment and limiting mechanism and the support mechanism, and by using components such as electric push rods, motors and hydraulic cylinders, the die can achieve precise position adjustment and support of sheet metal parts, thus avoiding surface damage.
The mold's adaptability has been expanded, allowing for adjustments to different bending areas based on the bending positions of various sheet metal parts. This ensures that the sheet metal surface remains undamaged and improves processing quality.
Smart Images

Figure CN224294367U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal processing technology, specifically to an adjustable die for seamless sheet metal bending. Background Technology
[0002] Traditional sheet metal bending processes can easily damage the workpiece surface during processing, resulting in obvious indentations or scratches. This affects the product's aesthetics and value, especially in the bending of materials such as stainless steel and aluminum sheets, where the requirements for surface quality are even higher. Traditional bending processes often cannot meet these requirements. To solve these problems, adjustable die-free sheet metal bending has emerged.
[0003] According to the patent application published on the Internet, "An adjustable sheet metal bending die without gaps includes a device platform. Support legs are fixedly installed at the bottom left and right ends of the device platform. A groove with an upper opening is opened on the inner side of the device platform. Two L-shaped support plates are symmetrically arranged on the upper left and right sides of the device platform. A sheet metal part body is arranged at the upper end of the two L-shaped support plates. A pressing mold is arranged directly above the sheet metal part body."
[0004] Regarding the above description, the applicant believes the following issues exist:
[0005] In this invention, the sheet metal part is placed on two horizontal L-shaped support plates according to its width. A distance adjustment mechanism then ensures the sheet metal part is precisely clamped between the two L-shaped support plates. A cylinder is then activated to push the die downwards, while the two L-shaped support plates remain in contact with the bottom surface of the sheet metal part. This causes the two ends of the sheet metal part to bend upwards and inwards along the bottom contact surface of the die. However, in actual use, the device, while adjusting the sheet metal part to be precisely clamped between the L-shaped support plates, cannot adjust to different bending areas based on the bending position of different sheet metal parts when the bending position is not in the center. This limits the device's adaptability and makes it unsuitable for bending different areas of different parts. Therefore, an improved, non-marking, adjustable die for sheet metal bending is needed. Utility Model Content
[0006] The purpose of this utility model is to provide an adjustable die for seamless bending of sheet metal to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable sheet metal bending die without gaps, comprising a connecting platform, a fixed frame fixedly connected to the top of the connecting platform, a hydraulic cylinder fixedly connected to the top of the fixed frame, a pressure plate fixedly connected to the output end of the hydraulic cylinder, a sliding column fixedly connected to the bottom of the fixed frame, a pressing die fixedly connected to the bottom of the pressure plate, an adjustment and limiting mechanism provided on the top of the connecting platform, and a support mechanism provided on the top of the connecting platform;
[0008] The adjustment and limiting mechanism includes an adjustment component and a limiting component, wherein the limiting component is disposed on the top of the connecting platform;
[0009] The adjustment assembly includes a fixed plate, which is fixedly connected to the inner front and rear sides of the connecting platform. A connecting column is fixedly connected to the top of the fixed plate, and an adjustment frame is rotatably connected to the bottom of the fixed plate. A motor is fixedly connected to the inner left side of the adjustment frame, and a screw is fixedly connected to the output end of the motor. A threaded sleeve is threadedly connected to the outer side of the screw. A connecting rod is rotatably connected to the left side of the threaded sleeve. A connecting rod is rotatably connected to the end of the connecting rod away from the threaded sleeve. A sliding frame is rotatably connected to the end of the connecting rod away from the connecting rod. A push plate is fixedly connected to the right side of the sliding frame to facilitate adjustment of the bending position of its sheet metal parts.
[0010] Preferably, the sliding frame has a groove at the corresponding position of the connecting column, and the sliding frame is slidably connected to the outside of the connecting column to facilitate the movement of the sheet metal parts.
[0011] Preferably, the fixing plate has a hole at the corresponding position of the connecting rod, and the connecting rod is rotatably connected in the hole, which facilitates synchronously pushing the connecting rod to rotate.
[0012] Preferably, the limiting component includes a support frame, which is fixedly connected to the left side of the connecting platform. An electric push rod is fixedly connected to the inner wall of the left side of the support frame. A pull plate is fixedly connected to the output end of the electric push rod. A pull rod is rotatably connected to the bottom of the pull plate. A synchronization plate is rotatably connected to the end of the pull rod away from the pull plate. A slider is fixedly connected to the top of the synchronization plate. A limiting plate is fixedly connected to the bottom of the synchronization plate to facilitate limiting the forward and backward movement of the sheet metal part.
[0013] Preferably, the support frame has a groove at the position corresponding to the slider, and the slider is slidably connected in the groove, which facilitates the synchronous movement of the two limiting plates relative to each other.
[0014] Preferably, the support mechanism includes an electric push rod two, which is fixedly connected to the top of the connecting platform. A support plate is fixedly connected to the output end of the electric push rod two. A fixing block one is fixedly connected to the top of the connecting platform, and a fixing block two is fixedly connected to the top of the connecting platform. A guide post is fixedly connected between the fixing block one and the fixing block two to facilitate the support of the sheet metal parts.
[0015] Preferably, the support plate has holes at positions corresponding to the guide post, and the support plate is slidably connected to the outside of the guide post, which facilitates the synchronous movement of the support plates on both sides.
[0016] Compared with the prior art, this utility model provides an adjustable die for seamless bending of sheet metal, which has the following advantages:
[0017] This adjustable sheet metal bending die, through its set adjustment and limiting mechanism, activates an electric push rod to adjust the appropriate limiting width according to the front and rear width of the sheet metal part, preventing the sheet metal part from moving back and forth during bending. Then, the left side of the sheet metal part is pressed tightly against the right side of the push plate. Then, according to the required bending position of the sheet metal part, the motor is started, and the push plate synchronously pushes the sheet metal part to the right. This allows the left and right movement position of the sheet metal part to be adjusted according to the required bending position, so that the bending area is directly below the die. This allows the device to adjust different bending areas according to different bending positions of sheet metal parts, thereby expanding the adaptability of the device and enabling it to cooperate with different bending work of different parts and different areas.
[0018] This sheet metal seamless bending adjustable mold, through the set support mechanism, activates the two electric push rods on both sides, which drive the corresponding support plate to move, thereby moving the support plate to the left along the guide post, thus allowing the appropriate support position to be adjusted according to the needs of different sheet metal parts. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0021] Figure 2 This is a front sectional view of the present invention.
[0022] Figure 3 This is a schematic diagram of the external structure of the adjustment and limiting mechanism of this utility model;
[0023] Figure 4 This is a schematic diagram of the external structure of the adjustment component of this utility model;
[0024] Figure 5 This is a schematic diagram of the unfolded structure of the limiting component of this utility model;
[0025] Figure 6This is a schematic diagram of the external structure of the support mechanism of this utility model.
[0026] In the diagram: 1. Connecting platform; 2. Fixing frame; 3. Hydraulic cylinder; 4. Pressure plate; 5. Sliding column; 6. Press mold; 7. Adjustment and limiting mechanism; 8. Support mechanism; 71. Adjustment component; 72. Limiting component; 711. Fixing plate; 712. Connecting column; 713. Adjusting frame; 714. Motor; 715. Screw one; 716. Threaded sleeve; 717. Connecting rod; 718. Connecting rod; 719. Sliding frame; 7110. Push plate; 721. Support frame; 722. Electric push rod one; 723. Pull plate; 724. Pull rod; 725. Synchronization plate; 726. Slider; 727. Limiting plate; 81. Electric push rod two; 82. Support plate; 83. Guide column; 84. Fixing block one; 85. Fixing block two. Detailed Implementation
[0027] 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.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example
[0029] The existing technology uses an adjustment mechanism to clamp the sheet metal part precisely between the L-shaped support plates after adjustment. However, when the bending positions of different sheet metal parts are not in the center, and the pressure film position of the device is in the center, the device cannot adjust to different bending areas according to the bending positions of different sheet metal parts. This limits the device's adaptability and makes it unable to handle bending work in different areas of different bent parts. Please refer to [link to relevant documentation]. Figure 1-6This utility model provides a technical solution: an adjustable sheet metal bending mold without traces, including a connecting platform 1, a fixed frame 2 fixedly connected to the top of the connecting platform 1, a hydraulic cylinder 3 fixedly connected to the top of the fixed frame 2, a pressure plate 4 fixedly connected to the output end of the hydraulic cylinder 3, a sliding column 5 fixedly connected to the bottom of the fixed frame 2, a pressure mold 6 fixedly connected to the bottom of the pressure plate 4, an adjustment and limiting mechanism 7 provided on the top of the connecting platform 1, and a support mechanism 8 provided on the top of the connecting platform 1;
[0030] The adjustment and limiting mechanism 7 includes an adjustment component 71 and a limiting component 72, with the limiting component 72 disposed on the top of the connecting platform 1;
[0031] The adjustment assembly 71 includes a fixed plate 711, which is fixedly connected to the inner front and rear sides of the connecting platform 1. A connecting post 712 is fixedly connected to the top of the fixed plate 711, and an adjustment frame 713 is rotatably connected to the bottom of the fixed plate 711. A motor 714 is fixedly connected to the inner left side of the adjustment frame 713. A screw 715 is fixedly connected to the output end of the motor 714. A threaded sleeve 716 is threadedly connected to the outside of the screw 715. A connecting rod 717 is rotatably connected to the left side of the threaded sleeve 716. A connecting rod 718 is rotatably connected to the end of the connecting rod 717 away from the threaded sleeve 716. A sliding frame 719 is rotatably connected to the end of the connecting rod 718 away from the connecting rod 717. A push plate 7110 is fixedly connected to the right side of the sliding frame 719 to facilitate adjustment of the bending position of its sheet metal parts.
[0032] Furthermore, the sliding frame 719 has a groove at the corresponding position of the connecting post 712, and the sliding frame 719 is slidably connected to the outside of the connecting post 712, which facilitates the movement of the sheet metal parts.
[0033] Furthermore, the fixing plate 711 has holes at corresponding positions to the connecting rod 717, and the connecting rod 717 is rotatably connected in the holes, which facilitates synchronously pushing the connecting rod 717 to rotate.
[0034] Furthermore, the limiting component 72 includes a support frame 721, which is fixedly connected to the left side of the connecting platform 1. An electric push rod 722 is fixedly connected to the inner wall of the left side of the support frame 721. A pull plate 723 is fixedly connected to the output end of the electric push rod 722. A pull rod 724 is rotatably connected to the bottom of the pull plate 723. A synchronization plate 725 is rotatably connected to the end of the pull rod 724 away from the pull plate 723. A slider 726 is fixedly connected to the top of the synchronization plate 725. A limiting plate 727 is fixedly connected to the bottom of the synchronization plate 725 to facilitate limiting the forward and backward movement of the sheet metal parts.
[0035] Furthermore, the support frame 721 and the slider 726 are provided with grooves at corresponding positions, and the slider 726 is slidably connected in the grooves, which facilitates the synchronous movement of the two limiting plates 727 relative to each other. Example
[0036] Based on the existing technology, which requires consideration of the sheet metal support location, please refer to [link / reference]. Figure 6 Furthermore, in conjunction with Embodiment 1, the support mechanism 8 includes an electric push rod 81, which is fixedly connected to the top of the connecting platform 1. A support plate 82 is fixedly connected to the output end of the electric push rod 81. A fixing block 84 is fixedly connected to the top of the connecting platform 1, and a fixing block 85 is fixedly connected to the top of the connecting platform 1. A guide post 83 is fixedly connected between the fixing block 84 and the fixing block 85 to facilitate the support of the sheet metal parts.
[0037] Furthermore, holes are provided at the corresponding positions of the support plate 82 and the guide post 83, and the support plate 82 is slidably connected to the outside of the guide post 83, so as to facilitate the synchronous movement of the support plates 82 on both sides.
[0038] In actual operation, when the device is in use, firstly, when it bends, according to the requirements, the electric push rods 81 on both sides are activated through the set support mechanism 8. The electric push rods 81 drive the corresponding support plate 82 to move, thereby guiding the support plate 82 to move to the left along the guide post 83. This allows for adjustment of the appropriate support position according to the needs of different sheet metal parts. Then, the sheet metal part is placed on the support plate 82. Before bending, the electric push rod 722 is activated through the set adjustment and limit mechanism 7. Push rod 722 pulls pull plate 723 to the left, and pull plate 723 then pulls pull rod 724 to move. Pull rod 724 then pulls synchronous plate 725 along the guide groove between slider 726 and support frame 721, which in turn drives the two limiting plates 727 to move inward relative to each other. This allows for adjustment of the appropriate limiting width according to the front and rear width of the sheet metal part. Then, the left side of the sheet metal part is pressed tightly against the right side of push plate 7110. Based on the required bending position of the sheet metal part, motor 714 is started. The screw 715 rotates, which in turn moves the threaded sleeve 716 to the left. This movement pushes the connecting rod 717 to rotate around the connection point of the fixed plate 711, simultaneously moving the connecting rod 718. As the connecting rod 718 moves the sliding frame 719 to the right, the sliding frame 719 pushes the push plate 7110, which in turn moves the sheet metal part to the right, allowing for bending according to the required bending distance. The sheet metal part is moved left and right to adjust its position so that the bending area is directly below the pressure mold 6. Then, the hydraulic cylinder 3 is activated, which drives the pressure plate 4 to move along the guide of the sliding column 5, thereby simultaneously pushing the pressure mold 6 downward so that the pressure mold 6 contacts the bottom of the sheet metal part, thus realizing the bending work at the specified position. Since the bottom surface of the sheet metal part never contacts the groove wall of the connecting platform 1 or other components, it will not cause damage to its surface, avoiding pressure or scratches on the contact surface, thus not affecting the appearance of the sheet metal part.
[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An adjustable sheet metal bending die without gaps, comprising a connecting platform (1), characterized in that: The top of the connecting platform (1) is fixedly connected to a fixed frame (2), the top of the fixed frame (2) is fixedly connected to a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is fixedly connected to a pressure plate (4), the bottom of the fixed frame (2) is fixedly connected to a sliding column (5), the bottom of the pressure plate (4) is fixedly connected to a pressure mold (6), the top of the connecting platform (1) is provided with an adjustment and limiting mechanism (7), and the top of the connecting platform (1) is provided with a support mechanism (8). The adjustment and limiting mechanism (7) includes an adjustment component (71) and a limiting component (72), wherein the limiting component (72) is disposed on the top of the connecting platform (1); The adjustment assembly (71) includes a fixed plate (711), which is fixedly connected to the inner front and rear sides of the connecting platform (1). A connecting column (712) is fixedly connected to the top of the fixed plate (711), and an adjustment frame (713) is rotatably connected to the bottom of the fixed plate (711). A motor (714) is fixedly connected to the inner left side of the adjustment frame (713). A screw (715) is fixedly connected to the output end of the motor (714). A threaded sleeve (716) is threadedly connected to the outside of the screw (715). A connecting rod (717) is rotatably connected to the left side of the threaded sleeve (716). A connecting rod (718) is rotatably connected to the end of the connecting rod (717) away from the threaded sleeve (716). A sliding frame (719) is rotatably connected to the end of the connecting rod (718) away from the connecting rod (717). A push plate (7110) is fixedly connected to the right side of the sliding frame (719).
2. The adjustable sheet metal bending die according to claim 1, characterized in that: The sliding frame (719) has a groove at the corresponding position of the connecting column (712), and the sliding frame (719) is slidably connected to the outside of the connecting column (712).
3. The adjustable sheet metal bending die according to claim 1, characterized in that: The fixing plate (711) has holes at corresponding positions to the connecting rod (717), and the connecting rod (717) is rotatably connected in the holes.
4. The adjustable sheet metal bending die according to claim 1, characterized in that: The limiting component (72) includes a support frame (721), which is fixedly connected to the left side of the connecting platform (1). An electric push rod (722) is fixedly connected to the inner wall of the left side of the support frame (721). A pull plate (723) is fixedly connected to the output end of the electric push rod (722). A pull rod (724) is rotatably connected to the bottom of the pull plate (723). A synchronization plate (725) is rotatably connected to the end of the pull rod (724) away from the pull plate (723). A slider (726) is fixedly connected to the top of the synchronization plate (725). A limiting plate (727) is fixedly connected to the bottom of the synchronization plate (725).
5. The adjustable sheet metal bending die according to claim 4, characterized in that: The support frame (721) has a groove at the corresponding position of the slider (726), and the slider (726) is slidably connected in the groove.
6. The adjustable sheet metal bending die according to claim 1, characterized in that: The support mechanism (8) includes an electric push rod two (81), which is fixedly connected to the top of the connecting platform (1). The output end of the electric push rod two (81) is fixedly connected to a support plate (82). A fixing block one (84) is fixedly connected to the top of the connecting platform (1), and a fixing block two (85) is fixedly connected to the top of the connecting platform (1). A guide post (83) is fixedly connected between the fixing block one (84) and the fixing block two (85).
7. The adjustable sheet metal bending die according to claim 6, characterized in that: The support plate (82) has holes at the corresponding positions of the guide post (83), and the support plate (82) is slidably connected to the outside of the guide post (83).