Adjustable angle bending mechanism
By designing an adjustable bending mechanism, and utilizing hydraulic drive and replaceable mold base, the problem of inflexible angle adjustment in existing devices has been solved, enabling stable bending of metal sheets and flexible angle adjustment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG FUMA HEAVY-DUTY MASCH TOOLS MFG CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing metal sheet bending devices are difficult to adjust flexibly to different angles, resulting in insufficient processing flexibility.
An adjustable bending mechanism was designed, which uses a hydraulic cylinder to drive the bending cutter and combines a replaceable bending die base and a fixing mechanism to meet different bending angle requirements.
It enables stable bending of metal sheets and flexible angle adjustment, improving the flexibility and stability of processing.
Smart Images

Figure CN224346690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal bending technology, and in particular to an adjustable angle bending mechanism. Background Technology
[0002] Bending is a common process in the machining of sheet metal. The structure of a common sheet metal bending device is as follows: A lifting punch is installed above the sheet metal, and a die matching the punch is located below the punch. During stamping, the sheet metal is conveyed by a feeding mechanism between the punch and the die. The punch falls down, completing the stamping of the sheet metal. The middle of the stamped sheet metal is concave, and the two sides of the concave part are upward. When in use, it is necessary to bend the sheet metal at different angles, so an adjustable angle bending mechanism is required. Utility Model Content
[0003] The purpose of this invention is to propose an adjustable-angle bending mechanism to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes an operating table, a bracket fixedly connected to the top of the operating table, a hydraulic cylinder fixedly connected to the top of the bracket, a mounting bracket fixedly connected to the output end of the hydraulic cylinder, a bending knife inserted into the bottom of the mounting bracket, a mounting base fixedly connected to the top of the operating table, a mounting groove formed on the top of the mounting base, a bending die holder placed inside the mounting groove, an installation mechanism provided at the connection between the mounting base and the bending die holder, and a fixing mechanism provided on one side of the mounting base.
[0005] Preferably, the mounting bracket is fixedly connected to the bending blade by screws, the inner wall of the mounting groove is in contact with the outer wall of the bending die base, and a right-angle bending groove is provided on the top of the bending die base.
[0006] Preferably, the mounting mechanism includes a connecting block, a connecting groove, a pin, a convex ring, a limiting groove, a spring, a fixing groove, and a fixing block. The bottom of the bending die base is integrally formed with a connecting block, the outer side of the connecting block is inserted into the connecting groove, one side of the mounting base is inserted with a pin, the outer side of the pin is fixedly connected with a convex ring, the outer side of the convex ring is slidably connected with a limiting groove, one side of the convex ring is fixedly connected with a spring, the top of the operating table is provided with a fixing groove, and the inner side of the fixing groove is inserted with a fixing block.
[0007] Preferably, one side of the fixing block is in contact with one end of the pin, the outer side of one end of the pin is set with an incline, the pin slides through and inserts into the connecting block, and the outer wall of the connecting block is in contact with the inner wall of the connecting groove.
[0008] Preferably, the fixing mechanism includes a slot, a through groove, an anti-detachment plate, and a bolt. The slot is provided on one side of the connecting block, and the through groove is provided on one side of the mounting base. An anti-detachment plate is inserted through the inner side of the through groove, and a bolt is inserted through the one side of the anti-detachment plate.
[0009] Preferably, one end of the anti-detachment plate is fitted with the inner wall of the through groove, the bolt is threaded onto one side of the mounting base, and one end of the anti-detachment plate is fitted with the inner wall of the slot.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the adjustable angle bending mechanism places the sheet metal on the bending die base and presses down with the bending blade to bend the sheet metal. The top of the bending die base has a right-angle bending groove, allowing bending to a 90-degree right angle. When adjusting the required bending angle, simply replace the bending die base with one that has a different bending groove. When installing the bending die base, simply place it into the mounting slot so that the connecting block inserts into the slot. During insertion, the outer side of one end of the pin is inclined. The mechanism guides one end of the push pin to slide out of the connecting groove and compresses the spring until the connecting block is fully inserted into the connecting groove. The spring then rebounds, and one end of the pin passes through and is inserted into the connecting block, thus limiting the bending die seat after installation. Next, the fixing block is inserted into the fixing groove, with one side of the fixing block fitting against one end of the pin. This prevents the pin from sliding and provides an anti-detachment effect. The anti-detachment plate is then inserted through the through groove and into the slot. Finally, bolts are used to fix the anti-detachment plate to one side of the mounting base, further securing the bending die seat and ensuring stable installation. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the mounting bracket and bending knife used in conjunction with this utility model;
[0013] Figure 3 This is a schematic diagram of the structure of the mounting groove and bending die base used together in this utility model;
[0014] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model;
[0015] Figure 5 This is a utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0016] In the diagram: 1. Operating table; 2. Bracket; 3. Hydraulic cylinder; 4. Mounting bracket; 5. Bending knife; 6. Mounting base; 7. Mounting groove; 8. Bending die base; 9. Connecting block; 10. Connecting groove; 11. Pin; 12. Protruding ring; 13. Limiting groove; 14. Spring; 15. Fixing groove; 16. Fixing block; 17. Slot; 18. Through groove; 19. Anti-detachment plate; 20. Bolt. Detailed Implementation
[0017] 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.
[0018] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0019] Example
[0020] Please see Figure 1-5 This utility model relates to an adjustable angle bending mechanism, comprising an operating table 1, a bracket 2 fixedly connected to the top of the operating table 1, a hydraulic cylinder 3 fixedly connected to the top of the bracket 2, a mounting frame 4 fixedly connected to the output end of the hydraulic cylinder 3, a bending blade 5 inserted into the bottom of the mounting frame 4, a mounting base 6 fixedly connected to the top of the operating table 1, a mounting groove 7 on the top of the mounting base 6, a bending die base 8 placed inside the mounting groove 7, an installation mechanism at the connection between the mounting base 6 and the bending die base 8, and a fixing mechanism on one side of the mounting base 6. In use, the sheet metal is placed on the bending die base 8, and the bending blade 5 is pressed down to bend the sheet metal. The top of the bending die base 8 has a right-angle bending groove, allowing bending to a 90-degree right angle. When the required bending angle needs to be adjusted, simply replace the bending die base 8 with one having a different bending groove.
[0021] Furthermore, the mounting bracket 4 is fixedly connected to the bending blade 5 by screws, the inner wall of the mounting groove 7 fits against the outer wall of the bending die base 8, and a right-angle bending groove is opened on the top of the bending die base 8. The screws pass through the mounting bracket 4 and the bending blade 5, and then the nuts are tightened to fix them, thus completing the installation and fixing of the bending blade 5.
[0022] To facilitate the installation of the bending die holder 8, the mounting mechanism includes a connecting block 9, a connecting groove 10, a pin 11, a convex ring 12, a limiting groove 13, a spring 14, a fixing groove 15, and a fixing block 16. The bottom of the bending die holder 8 is integrally formed with the connecting block 9, and the connecting groove 10 is inserted into the outer side of the connecting block 9. The pin 11 is inserted into one side of the mounting base 6, and the convex ring 12 is fixedly connected to the outer side of the pin 11. The limiting groove 13 is slidably connected to the outer side of the convex ring 12, and the spring 14 is fixedly connected to one side of the convex ring 12. The top of the operating table 1 has a fixing groove 15, and the fixing block 16 is inserted into the inner side of the fixing groove 15. When installing the bending die holder 8, simply place the bending die holder 8 into the mounting slot 7 so that the connecting block 9 is inserted into the connecting slot 10. During insertion, the outer side of one end of the pin 11 is set with an inclined surface, which guides and pushes one end of the pin 11 to slide out of the connecting slot 10 and compresses the spring 14 until the connecting block 9 is fully inserted into the connecting slot 10. The spring 14 then rebounds, and one end of the pin 11 passes through the inserted connecting block 9, thereby limiting the bending die holder 8 after installation. Then, the fixing block 16 is inserted into the fixing slot 15. One side of the fixing block 16 is in contact with one end of the pin 11, which can prevent the pin 11 from sliding and achieve the effect of preventing detachment.
[0023] Furthermore, one side of the fixing block 16 is in contact with one end of the pin 11, and the outer side of one end of the pin 11 is set with a bevel. The pin 11 slides through and inserts into the connecting block 9, and the outer wall of the connecting block 9 is in contact with the inner wall of the connecting groove 10.
[0024] To better secure the bending die holder 8, the fixing mechanism includes a slot 17, a through groove 18, an anti-detachment plate 19, and a bolt 20. A slot 17 is provided on one side of the connecting block 9, and a through groove 18 is provided on one side of the mounting base 6. An anti-detachment plate 19 is inserted through the inside of the through groove 18, and a bolt 20 is inserted through one side of the anti-detachment plate 19. The anti-detachment plate 19 is inserted through the through groove 18 and into the slot 17, and then the bolt 20 is used to fix the anti-detachment plate 19 to one side of the mounting base 6. This can further secure the bending die holder 8 and ensure the stable installation of the bending die holder 8.
[0025] Furthermore, one end of the anti-detachment plate 19 is fitted with the inner wall of the through groove 18, and the bolt 20 is threadedly connected to one side of the mounting base 6. One end of the anti-detachment plate 19 is fitted with the inner wall of the slot 17.
[0026] Working principle: During use, the sheet metal is placed on the bending die 8, and the bending blade 5 presses down to bend the sheet metal. The top of the bending die 8 has a right-angle bending groove, so it can be bent to a 90-degree right angle. When the required bending angle needs to be adjusted, simply replace the bending die 8 with one that has a different bending groove. When installing the bending die 8, simply place it into the mounting slot 7 so that the connecting block 9 inserts into the connecting slot 10. During insertion, the outer side of one end of the pin 11 is beveled, which guides and pushes one end of the pin 11 to slide out of the connecting slot 10 and compress it. Spring 14 is inserted until connecting block 9 is fully inserted into connecting groove 10. Spring 14 rebounds, and one end of pin 11 passes through and is inserted into connecting block 9, thereby limiting the installation of bending die base 8. Then, fixing block 16 is inserted into fixing groove 15. One side of fixing block 16 is in contact with one end of pin 11, which can prevent pin 11 from sliding and play a role in preventing detachment. Anti-detachment plate 19 is inserted through through groove 18 and inserted into slot 17. Then, bolt 20 is used to fix anti-detachment plate 19 to one side of mounting base 6, which can further fix bending die base 8 and ensure the installation stability of bending die base 8.
[0027] 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. An adjustable angle bending mechanism, comprising an operating table (1), wherein a bracket (2) is fixedly connected to the top of the operating table (1), and a hydraulic cylinder (3) is fixedly connected to the top of the bracket (2), characterized in that: The output end of the hydraulic cylinder (3) is fixedly connected to a mounting bracket (4), and a bending knife (5) is inserted into the bottom of the mounting bracket (4). The top of the operating table (1) is fixedly connected to a mounting seat (6), and the top of the mounting seat (6) is provided with a mounting groove (7). A bending die seat (8) is placed inside the mounting groove (7). An installation mechanism is provided at the connection between the mounting seat (6) and the bending die seat (8). A fixing mechanism is provided on one side of the mounting seat (6). The installation mechanism includes a connecting block (9), a connecting groove (10), a pin (11), a convex ring (12), a limiting groove (13), a spring (14), a fixing groove (15), and a fixing block (16). The bottom of the bending die base (8) is integrally formed with a connecting block (9). The connecting groove (10) is inserted into the outer side of the connecting block (9). The pin (11) is inserted into one side of the mounting base (6). The convex ring (12) is fixedly connected to the outer side of the pin (11). The limiting groove (13) is slidably connected to the outer side of the convex ring (12). The spring (14) is fixedly connected to one side of the convex ring (12). The top of the operating table (1) is provided with a fixing groove (15). The fixing block (16) is inserted into the inner side of the fixing groove (15). One side of the fixing block (16) is in contact with one end of the pin (11), and the outer side of one end of the pin (11) is set with an inclined surface. The pin (11) slides through and inserts into the connecting block (9), and the outer wall of the connecting block (9) is in contact with the inner wall of the connecting groove (10). The fixing mechanism includes a slot (17), a through groove (18), an anti-detachment plate (19), and a bolt (20). The connecting block (9) has a slot (17) on one side, and the mounting base (6) has a through groove (18) on one side. The anti-detachment plate (19) is inserted through the inside of the through groove (18), and the bolt (20) is inserted through the side of the anti-detachment plate (19). One end of the anti-detachment plate (19) is attached to the inner wall of the through groove (18), the bolt (20) is threaded to one side of the mounting base (6), and one end of the anti-detachment plate (19) is attached to the inner wall of the slot (17).
2. The adjustable angle bending mechanism according to claim 1, characterized in that: The mounting bracket (4) is fixedly connected to the bending knife (5) by screws. The inner wall of the mounting groove (7) is in contact with the outer wall of the bending die base (8). A right-angle bending groove is provided on the top of the bending die base (8).