Multi-angle bending die for sheet metal accessory

Abstract

The utility model discloses a sheet metal accessory multi -angle bending mould, including support, the support inside is provided with bending machine, the bending machine bottom is provided with upper die, the upper die includes adjusting plate, adjusting plate bottom slidingly connected has bending plate no.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, specifically to a multi-angle bending die for sheet metal parts. Background Technology

[0002] Sheet metal work is a comprehensive cold processing technology for thin metal sheets, including shearing, punching / cutting / compound bending, bending, welding, riveting, splicing, forming, etc. The upper and lower dies of a bending machine can generally bend one angle at a time, but it cannot bend some small parts that require bending at multiple angles.

[0003] According to announcement number CN217251763U, a sheet metal multi-angle bending die includes a bracket. A stamping machine is mounted on the top of the inner wall of the bracket, and an upper die is fixedly installed at the output end of the stamping machine. A worktable is fixed to the bottom of the inner wall of the bracket, and a lower die is detachably connected to the middle of the worktable. The upper die includes an adjusting plate, and multiple connecting holes are symmetrically formed along the center on the lower surface of the adjusting plate. These connecting holes are detachably connected to the upper ends of two symmetrically arranged bending plates, and the lower ends of the two bending plates are hinged together. The advantages compared to existing technologies are: the included angle between the two hinged bending plates can be adjusted; by connecting to the connecting holes at different positions on the adjusting plate, various angles suitable for sheet metal bending can be precisely obtained; and the two limiting plates of the lower die adjust the included angle under the action of a cylinder, expanding the die's applicable range, saving assembly materials, and reducing processing costs.

[0004] The above-mentioned device can expand the application range of molds and save assembly materials. According to the instruction manual and the attached drawings, when the device is used, the connecting holes are discretely distributed and symmetrically opened along the center of the lower surface of the adjustment plate. It can only realize fixed-position angle adjustment and cannot meet the bending requirements of non-standard angles such as arbitrary angles, thus limiting the versatility of the device. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-angle bending die for sheet metal parts, which solves the problem that multiple connecting holes are symmetrically opened along the center of the lower surface of the adjustment plate, which can only realize fixed angle adjustment and cannot meet the bending requirements of non-standard angles such as arbitrary angles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle bending die for sheet metal parts, including a bracket, a bending machine is installed inside the bracket, an upper die is installed at the bottom of the bending machine, the upper die includes an adjusting plate, a bending plate one and a bending plate two are slidably connected to the bottom of the adjusting plate, and a rotating shaft is rotatably connected between the middle of the bending plate one and the bending plate two, a lower die is installed inside the bracket, a sliding plate is slidably connected inside the adjusting plate, inclined grooves are symmetrically opened at the top of the sliding plate, a fixing plate is fixedly installed at the top of the bending plate one and the bending plate two, a connecting shaft is fixedly installed at the top of the fixing plate, and the connecting shaft is adapted to the inclined groove, a threaded rod is rotatably connected inside the adjusting plate, and an adjusting handle is rotatably connected to one end of the adjusting plate, and the adjusting handle is fixedly installed with the threaded rod.

[0007] As a further embodiment of this utility model: a guide rod is fixedly installed inside the adjustment plate, and the guide rod is symmetrically fixedly installed inside the adjustment plate, and the guide rod is slidably connected to the fixed plate.

[0008] As a further embodiment of this utility model: a guide slide rod is fixedly installed inside the adjustment plate, and the guide slide rod is symmetrically fixedly installed at both ends inside the adjustment plate. Guide slide grooves are symmetrically opened at both ends of the slide plate, and the guide slide grooves are adapted to the guide slide rods.

[0009] As a further embodiment of this utility model: a limiting gear is fixedly installed at one end of the adjusting handle, a rotating seat is fixedly installed at one end of the adjusting plate, and a limiting block is rotatably connected to one end of the rotating seat, wherein the limiting block is adapted to the tooth groove of the limiting gear.

[0010] As a further embodiment of this utility model: a reset spring for resetting the limit block is fixedly installed at one end of the adjustment plate, and one end of the reset spring is fixedly installed with the limit block.

[0011] As a further improvement of this utility model, the inclined grooves are arranged in opposite directions.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention allows the adjustment of the handle to drive the threaded rod, which in turn drives the slide plate to slide along the guide rod. Through the linkage of the opposing inclined groove and the connecting shaft, bending plate one and bending plate two rotate around the pivot. Different sliding distances of the slide plate allow for arbitrary angle adjustment, breaking through the limitations of fixed positions and meeting non-standard angle requirements. During adjustment, the guide rod ensures structural stability, and the limit block and limit gear work together to lock the angle and prevent deviation. The overall operation is simple, the angle adjustment is flexible and precise, improving the versatility of the device and solving the drawback of only being able to bend at a fixed angle, making it suitable for more sheet metal processing scenarios. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a side view of the bracket structure in this utility model;

[0016] Figure 3 This is a utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0017] Figure 4 This is a schematic diagram of the front cross-sectional structure of the adjustment plate in this utility model;

[0018] Figure 5 This is a side cross-sectional view of the adjusting plate in this utility model.

[0019] In the diagram: 1. Support; 2. Bending machine; 3. Upper die; 301. Adjusting plate; 302. Bending plate two; 303. Bending plate one; 304. Rotating shaft; 4. Lower die; 5. Fixing plate; 6. Slide plate; 7. Inclined groove; 8. Connecting shaft; 9. Threaded rod; 10. Adjusting handle; 11. Limit gear; 12. Rotating seat; 13. Limit block; 14. Return spring; 15. Guide slide rod; 16. Guide slide groove; 17. Guide rod. Detailed Implementation

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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. The embodiments of this utility model will be described below based on its overall structure.

[0022] Reference Figures 1 to 5 In this embodiment of the utility model, the multi-angle bending die for sheet metal parts includes a bracket 1, a bending machine 2 is provided inside the bracket 1, an upper die 3 is provided at the bottom of the bending machine 2, the upper die 3 includes an adjusting plate 301, a bending plate 1 303 and a bending plate 2 302 are slidably connected at the bottom of the adjusting plate 301, and a rotating shaft 304 is rotatably connected between the middle of the bending plate 1 303 and the bending plate 2 302, a lower die 4 is provided inside the bracket 1, a sliding plate 6 is slidably connected inside the adjusting plate 301, and inclined grooves 7 are symmetrically opened at the top of the sliding plate 6, a fixing plate 5 is fixedly installed at the top of the bending plate 1 303 and the bending plate 2 302, a connecting shaft 8 is fixedly installed at the top of the fixing plate 5, and the connecting shaft 8 is adapted to the inclined groove 7, a threaded rod 9 is rotatably connected inside the adjusting plate 301, an adjusting handle 10 is rotatably connected at one end of the adjusting plate 301, and the adjusting handle 10 is fixedly installed with the threaded rod 9, and the inclined grooves 7 are arranged in opposite directions.

[0023] The above-mentioned scheme employs the following components: bracket 1, bending machine 2, upper die 3, and lower die 4 are referenced from prior art or existing technologies and are not described in detail in this application. The slide plate 6 is made of wear-resistant alloy or high-strength engineering plastic. The fixing plate 5 is made of alloy steel and is welded to bending plate 1 303 and bending plate 2 302 for a secure connection. The connecting shaft 8 is made of wear-resistant alloy steel with a smooth surface to reduce friction with the inclined groove 7. The threaded rod 9 is made of high-strength alloy steel with a rust-proof surface and high thread precision. The overlapping point of the threaded rod 9 and the adjusting plate 301 is a rotating connection. The adjusting handle 10 is made of engineering plastic or rubber-coated metal for easy gripping and force application. The inclined groove 7, as part of the slide plate 6, has a smooth inner wall and a precise tilt angle. The opening angle of the inclined groove 7 is pre-set to ensure that bending plate 1 303 and bending plate 2 302 can move along the pre-set angle. The angle of the spacing is adjusted. The advantage of this structure is that rotating the adjustment handle 10 drives the threaded rod 9 to rotate, causing the slide plate 6 to slide inside the adjustment plate 301. Since the inclined grooves 7 are set in opposite directions, when the slide plate 6 slides, the connecting shaft 8 on the top fixing plate 5 of the bending plate 1 303 and the bending plate 2 302 will slide along the inclined groove 7, thereby driving the bending plate 1 303 and the bending plate 2 302 to open and close synchronously in opposite directions. This structure converts the rotational motion of the adjustment handle 10 into the linear motion of the slide plate 6 through the helical transmission of the threaded rod 9 and the slide plate 6. Then, through the cooperation of the connecting shaft 8 and the inclined groove 7, the linear motion is converted into the opening and closing motion of the bending plate 1 303 and the bending plate 2 302. The transmission is precise and labor-saving. The opposite setting of the inclined grooves 7 ensures that the opening and closing amplitude of the bending plate 1 303 and the bending plate 2 302 is consistent, the adjustment symmetry is good, and the spacing between the two can be precisely controlled.

[0024] Reference Figures 1 to 5 A guide rod 17 is fixedly installed inside the adjusting plate 301, and the guide rod 17 is symmetrically fixedly installed inside the adjusting plate 301. The guide rod 17 is slidably connected to the fixed plate 5. A guide slide rod 15 is fixedly installed inside the adjusting plate 301, and the guide slide rod 15 is symmetrically fixedly installed at both ends inside the adjusting plate 301. The slide plate 6 has guide grooves 16 symmetrically opened at both ends, and the guide grooves 16 are adapted to the guide slide rods 15.

[0025] The above scheme is adopted: the guide rod 17 is made of high-strength alloy steel with a chrome-plated surface, which combines rust resistance and smoothness. It is fixed to the adjusting plate 301 by welding or bolts, ensuring a stable connection. The guide slide rod 15 is made of the same material as the guide rod 17 to ensure structural strength and wear resistance. The guide slide groove 16, as part of the slide plate 6, is made of the same material, with its inner wall precision polished and the groove edges rounded to reduce sliding resistance. The sliding connection between the fixing plate 5 and the guide rod 17 is smoothed to avoid jamming. The advantage of this structure is that the guide rod 17 inside the adjusting plate 301 is slidably connected to the fixing plate 5. When the bending plate 1 303 and bending plate 2 302 are connected... When shaft 8 moves along inclined groove 7, guide rod 17 provides precise guidance for fixed plate 5, restricting fixed plate 5 to move only in a straight line, avoiding deviation or tilting of bending plate 1 303 and bending plate 2 302 during opening and closing, and ensuring the stability of their movement trajectory. The guide slide rod 15 inside adjusting plate 301 is adapted to the guide slide groove 16 at both ends of slide plate 6. When threaded rod 9 drives slide plate 6 to slide, the cooperation between guide slide rod 15 and guide slide groove 16 restricts slide plate 6 to move only in a straight line, preventing slide plate 6 from twisting or deviating due to the transmission of threaded rod 9, ensuring that the cooperation between inclined groove 7 and connecting shaft 8 is always accurate, thereby ensuring the opening and closing adjustment accuracy of bending plate 1 303 and bending plate 2 302.

[0026] Reference Figures 1 to 5 One end of the adjusting handle 10 is fixedly installed with a limiting gear 11, and one end of the adjusting plate 301 is fixedly installed with a rotating seat 12. One end of the rotating seat 12 is rotatably connected to a limiting block 13. The limiting block 13 is adapted to the tooth groove of the limiting gear 11. One end of the adjusting plate 301 is fixedly installed with a reset spring 14 for the limiting block 13 to reset. One end of the reset spring 14 is fixedly installed with the limiting block 13.

[0027] The above-mentioned scheme employs the following: the limit gear 11 is made of high-strength alloy steel, with its tooth surface hardened to provide high strength and wear resistance. It is connected to the adjusting handle 10 via a key to ensure synchronous rotation. The rotating seat 12 is made of the same material as the adjusting plate 301 and is fixed by welding. The rotating connection is smooth to ensure smooth rotation of the limit block 13. The limit block 13 is made of high-strength alloy steel, and the end that contacts the tooth groove of the limit gear 11 is hardened to improve wear resistance and meshing accuracy. The return spring 14 is made of high-elasticity spring steel with stable elasticity to ensure reliable return of the limit block 13. The advantage of this structure is that the rotation of the adjusting handle 10 drives... The limiting gear 11 rotates synchronously. Under normal conditions, the return spring 14 pushes the limiting block 13 to engage with the tooth groove of the limiting gear 11. The meshing of the teeth restricts the rotation of the limiting gear 11, thereby fixing the position of the adjusting handle 10 and the threaded rod 9. This prevents the bending plate 11 and the bending plate 2 302 from shifting due to vibration or external force during processing, ensuring the stability of the adjusted spacing. When adjustment is needed, the limiting block 13 is moved to compress the return spring 14 so that it disengages from the tooth groove of the limiting gear 11. Then the adjusting handle 10 can be rotated for adjustment. After adjustment, the limiting block 13 is released, and it automatically resets and re-engages with the tooth groove under the action of the return spring 14 to achieve locking.

[0028] The working principle of this utility model is as follows: Before sheet metal bending, the bending plate angle of the upper die 3 is adjusted according to the required bending angle. The limiting block 13 at one end of the adjusting plate 301 is rotated so that it rotates around the rotating seat 12 and disengages from the tooth groove of the limiting gear 11. At the same time, the return spring 14 at one end of the adjusting plate 301 is compressed. The adjusting handle 10 is rotated, and the adjusting handle 10 drives the threaded rod 9 fixed to it to rotate inside the adjusting plate 301. The threaded rod 9 is threadedly connected to the slide plate 6, thereby pushing the slide plate 6 to slide along the guide slide rod 15 symmetrically fixed inside the adjusting plate 301. The inclined grooves 7 symmetrically opened at the top of the slide plate 6 are arranged opposite each other. The connecting shaft 8 on the top fixing plate 5 of the bending plate 1 303 and the bending plate 2 302 is fitted into the inclined groove 7. When the slide plate 6 slides, the inclined groove 7 pushes the fixing plate 5 to slide along the guide rod 17 inside the adjusting plate 301 through the connecting shaft 8. 303 and the second bending plate 302 are rotatably connected by a pivot 304. When the fixed plate 5 slides, it will drive the first bending plate 303 and the second bending plate 302 to rotate around the pivot 304, changing the included angle between them. The sliding distance of the slide plate 6 is different, and the included angle changes differently, which can realize arbitrary angle adjustment instead of fixed position. When the bending angle is adjusted to the required angle, the limit block 13 is released, the reset spring 14 pushes the limit block 13 to reset, and re-engages it into the tooth groove of the limit gear 11, fixing the position of the adjustment handle 10 and the threaded rod 9, thereby locking the angle of the first bending plate 303 and the second bending plate 302. Then, the sheet metal is placed on the lower mold 4 inside the bracket 1, the bending machine 2 is started, and the upper mold 3 is driven to move downward. The first bending plate 303 and the second bending plate 302 cooperate with the lower mold 4 to bend the sheet metal, meeting the bending requirements of any non-standard angle and improving the versatility of the device.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-angle bending die for sheet metal parts, comprising a bracket (1), wherein a bending machine (2) is provided inside the bracket (1), and an upper die (3) is provided at the bottom end of the bending machine (2), wherein the upper die (3) comprises an adjusting plate (301), wherein a bending plate one (303) and a bending plate two (302) are slidably connected at the bottom end of the adjusting plate (301), and a rotating shaft (304) is rotatably connected at the middle of the bending plate one (303) and the bending plate two (302), and a lower die (4) is provided inside the bracket (1), characterized in that, The adjusting plate (301) is slidably connected to a sliding plate (6). The top of the sliding plate (6) is symmetrically provided with inclined grooves (7). The tops of the bending plate one (303) and the bending plate two (302) are both fixedly installed with fixing plates (5). The top of the fixing plate (5) is fixedly installed with a connecting shaft (8), and the connecting shaft (8) is adapted to the inclined groove (7). The adjusting plate (301) is rotatably connected to a threaded rod (9). One end of the adjusting plate (301) is rotatably connected to an adjusting handle (10), and the adjusting handle (10) is fixedly installed with the threaded rod (9).

2. The multi-angle bending die for sheet metal parts according to claim 1, characterized in that, The adjustment plate (301) is fixedly installed with guide rods (17), and the guide rods (17) are symmetrically fixed inside the adjustment plate (301). The guide rods (17) are slidably connected to the fixed plate (5).

3. The multi-angle bending die for sheet metal parts according to claim 2, characterized in that, The adjustment plate (301) is fixedly installed with guide slide rods (15), and the guide slide rods (15) are symmetrically fixedly installed at both ends inside the adjustment plate (301). The slide plate (6) is symmetrically provided with guide slide grooves (16) at both ends, and the guide slide grooves (16) are adapted to the guide slide rods (15).

4. The multi-angle bending die for sheet metal parts according to claim 3, characterized in that, One end of the adjustment handle (10) is fixedly installed with a limiting gear (11), and one end of the adjustment plate (301) is fixedly installed with a rotating seat (12), and one end of the rotating seat (12) is rotatably connected to a limiting block (13), and the limiting block (13) is adapted to the tooth groove of the limiting gear (11).

5. The multi-angle bending die for sheet metal parts according to claim 4, characterized in that, One end of the adjustment plate (301) is fixedly installed with a reset spring (14) for resetting the limit block (13), and one end of the reset spring (14) is fixedly installed with the limit block (13).

6. The multi-angle bending die for sheet metal parts according to claim 5, characterized in that, The inclined grooves (7) are arranged in opposite directions.

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