A bending machine with a movable die clamp.

By designing a die clamp and locking mechanism, combined with a hydraulic drive system, the bending die and lower die in the bending machine can be quickly replaced and stably fixed, solving the problem of cumbersome bending die replacement in the existing technology and improving the convenience and stability of the bending machine.

CN224574409UActive Publication Date: 2026-07-31ANHUI ZHIJIN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI ZHIJIN AUTO PARTS CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing bending machine requires disassembling the fixing bolts one by one when changing the bending blade and the die base. The process is complicated and time-consuming, which reduces the ease of use.

Method used

It adopts a structure of die clamp, electric push rod, mounting base, rotating shaft and rotating roller, combined with locking mechanism and hydraulic drive system, to realize quick replacement and fixation of bending knife and lower die. Through the cooperation of insert rod, baffle and spring, stability and convenience are improved.

Benefits of technology

It enables rapid switching between different bending knives and lower dies, shortens changeover time, improves the ease of use and stability of the bending machine, and meets the bending requirements of sheet metal with different shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a bending machine with a movable die clamp, comprising a bending machine in which a die clamp is slidably mounted. Mounting plates are fixedly connected to both sides of the die clamp, and an electric push rod is fixedly mounted under each mounting plate. A mounting base is fixedly connected to the output end of the electric push rod. A rotating shaft is rotatably mounted between the two sets of mounting bases. A rotating roller is fixedly connected to the outside of the rotating shaft, and a first bending blade, a second bending blade, a third bending blade, and a fourth bending blade are fixedly mounted on the outside of the rotating roller. A slot is provided at the bottom of the die clamp. In this utility model, by using the bending machine in conjunction with the die clamp, electric telescopic rod, mounting base, rotating shaft, and rotating roller, bending blades of different types can be quickly switched to meet the bending requirements of sheet metal with different shapes. This shortens the time for changing different bending blades, has a simple structure, is easy to operate, and improves the convenience of using the bending machine.
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Description

Technical Field

[0001] This utility model relates to the field of bending machine equipment, specifically to a bending machine with a movable die clamp. Background Technology

[0002] Bending machines are indispensable core equipment in metal sheet processing. By precisely controlling the movement of the slider and cooperating with the mold, they can achieve plastic deformation of metal sheets to form the required angles and shapes.

[0003] To further understand existing bending machines, a search revealed Chinese Patent CN222659737U, which discloses a bending mechanism for a bending machine. The mechanism includes a bending machine body and a bending die base. It further includes: fixed rods on both sides of the bending die base; electric push rods fixed on both sides of the bottom surface of the bending machine body; a bending plate bolted to the output shaft of each electric push rod; a top plate fixedly connected to both ends of the bending plate; a support block fixedly connected to the top of the top plate; a motor located on the right side of the bending machine body; a screw bolted to the output shaft of the motor; the other end of the screw rotatably connected to the left side of the bending machine body; a threaded sleeve connected to the surface of the screw; a fixed tube fixed to the surface of the threaded sleeve; a dust suction head connected to the other end of the fixed tube; and a dust suction structure for adsorbing debris located on the left side of the bending machine body and communicating with the fixed tube.

[0004] After exploration and analysis, the following drawbacks were found in the actual use of this patent: Although the patent uses a fixed tube and a dust suction head to move in the bending die to absorb debris in the V-groove, the bending machine needs to replace the bending blade and the die when bending plates with different shapes. In this patent, the bending blade needs to be installed and removed one by one by the operator, which is very complicated and time-consuming, reducing the convenience of using the bending machine. Utility Model Content

[0005] To address the technical problem that existing bending machines require operators to install and remove fixing bolts one by one for installing and removing the bending blade, which is a very complicated and time-consuming process and reduces the convenience of using the bending machine, this utility model provides a bending machine with a movable die clamp.

[0006] The technical solution adopted by this utility model is as follows: A bending machine is included, in which a die clamp is slidably installed. Mounting plates are fixedly connected to both sides of the die clamp. An electric push rod is fixedly installed under the mounting plates. A mounting base is fixedly connected to the output end of the electric push rod. A rotating shaft is rotatably installed between the two sets of mounting bases. A rotating roller is fixedly connected to the outside of the rotating shaft. A first bending blade, a second bending blade, a third bending blade, and a fourth bending blade are fixedly installed on the outside of the rotating roller. A slot is provided at the bottom of the die clamp, which is adapted to the third bending blade. An mounting block is fixedly installed on the bending machine. A lower die is slidably installed on the mounting block, and the lower die is adapted to the first bending blade. Locking mechanisms are provided on both sides of the die clamp.

[0007] Furthermore, the locking mechanism includes a fixed bracket fixedly installed on both sides of the die clamp and a slidingly installed insert rod. The mounting base has a limit hole, and both sides of the die clamp have insertion holes. The insert rod is adapted to the limit hole and the insertion hole.

[0008] By adopting the above technical solution, the mounting base is fixed on one side of the die clamp.

[0009] Furthermore, a baffle is fixedly installed on the outside of the insertion rod, and a first spring is fixedly connected to one side of the baffle. One end of the first spring is fixedly installed to the fixing frame, and the first spring is sleeved on the outside of the insertion rod.

[0010] By adopting the above technical solutions, the stability of the locking mechanism can be improved.

[0011] Furthermore, a groove is provided on one side of the mounting block, the lower mold is slidably installed in the groove, and a baffle is provided in the mounting block.

[0012] By adopting the above technical solution, it is easy to replace the lower mold.

[0013] Furthermore, the mounting block has a mounting groove, a baffle is slidably connected in the mounting groove, and a second spring is fixedly installed at the bottom of the baffle, with one end of the second spring fixed to the bottom of the mounting groove.

[0014] By adopting the above technical solution, the baffle can limit and fix the replaced lower mold.

[0015] Furthermore, a movable groove is provided on one side of the mounting block, the movable groove is connected to the mounting groove, and a push plate is slidably connected in the movable groove, the push plate being fixed to one side of the baffle.

[0016] By adopting the above technical solution, the ease of moving the baffle is improved.

[0017] The beneficial effects of this utility model are as follows: By using a bending machine in conjunction with a die clamp, an electric telescopic rod, a mounting base, a rotating shaft, and a rotating roller, rotating the roller can switch between the first bending blade, the second bending blade, the third bending blade, and the fourth bending blade for bending operations. The mounting block, in conjunction with the lower die, a slide, a mounting groove, a baffle, a push plate, and a second spring, facilitates the replacement and fixing of different lower dies. Different types of bending blades can be quickly switched to meet the bending requirements of sheet metal with different shapes, shortening the replacement time of different bending blades. The structure is simple and the operation is convenient, improving the ease of use of the bending machine.

[0018] By using the die clamp, insert rod, baffle, first spring, limit hole and insertion hole, the mounting base is locked on one side of the die clamp after changing different bending blades, which improves the stability of the changed bending blade under the die clamp, thereby improving the stability of the bending blade during the bending process and ensuring the bending effect of the sheet metal. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the die clamp in this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the die clamp in this utility model;

[0022] Figure 4 This is an assembly diagram of the mounting base, rotating roller, and die clamp in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fixing frame in this utility model;

[0024] Figure 6 This is a schematic diagram of the assembly of the baffle and the mounting block in this utility model.

[0025] The diagram is labeled as follows: 1. Bending machine; 2. Die clamp; 3. Mounting block; 4. Mounting base; 5. Rotating shaft; 6. Rotating roller; 7. First bending cutter; 8. Second bending cutter; 9. Third bending cutter; 10. Fourth bending cutter; 11. Slot; 12. Lower die; 13. Mounting plate; 14. Electric push rod; 15. Fixing bracket; 16. Limiting hole; 17. Insertion hole; 18. Insertion rod; 19. Baffle; 20. First spring; 21. Slide groove; 22. Mounting groove; 23. Baffle; 24. Movable groove; 25. Push plate; 26. Second spring. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 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 based on the specific circumstances.

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 The present invention will be further described below.

[0029] To address the problems existing in the background technology, this application proposes the following technical solution: A bending machine 1 is included, in which a die clamp 2 is slidably installed. Mounting plates 13 are fixedly connected to both sides of the die clamp 2. An electric push rod 14 is fixedly installed under the mounting plate 13. A mounting base 4 is fixedly connected to the output end of the electric push rod 14. A rotating shaft 5 is rotatably installed between the two sets of mounting bases 4. A rotating roller 6 is fixedly connected to the outside of the rotating shaft 5. A first bending cutter 7, a second bending cutter 8, a third bending cutter 9, and a fourth bending cutter 10 are fixedly installed on the outside of the rotating roller 6. A slot 11 is provided at the bottom of the die clamp 2, which is adapted to the third bending cutter 9. An mounting block 3 is fixedly installed on the bending machine 1. A lower die 12 is slidably installed on the mounting block 3, and the lower die 12 is adapted to the first bending cutter 7. Locking mechanisms are provided on both sides of the die clamp 2.

[0030] The bending machine 1 is equipped with a hydraulic drive system. The hydraulic system drives the die clamp 2 to move upward, which in turn moves the first bending blade 7 downward. The first bending blade 7, in conjunction with the lower die 12, bends the sheet metal. The first bending blade 7, the second bending blade 8, the third bending blade 9, and the fourth bending blade 10 have different blade shapes, and can bend the sheet metal into different shapes by using the corresponding lower die 12 (this application takes switching the second bending blade 8 as an example). When the second bending blade 8 is needed, the electric push rod 14 drives the mounting base 4 to move downward. The mounting base 4 drives the rotating roller 6 downward through the rotating shaft 5, so that the third bending blade 9 is removed from the slot 11. Then, the operator rotates the rotating roller 6 to rotate the second bending blade 8 to the lower position, and then the electric push rod 14 drives the mounting base 4 to move upward, so that the fourth bending blade 10 is inserted. The second bending cutter 8 is inserted into the slot 11 and fixed to one side of the die clamp 2 by the locking mechanism, so that the second bending cutter 8 is stably fixed under the die clamp 2. When using the second bending cutter 8, the lower die 12 on the mounting block 3 is replaced with the lower die 12 corresponding to the second bending cutter 8. The first bending cutter 7, the second bending cutter 8, the third bending cutter 9 and the fourth bending cutter 10 are all adapted to the slot 11, so that different bending cutters can be quickly switched without installing and removing the fixing bolts one by one, which can meet the bending of sheet metal with different shape requirements, shorten the time for changing different bending cutters, and make the operation simple and quick, improving the convenience of using the bending machine 1. The two sets of electric push rods 14 are synchronously driven by PC programmable control. The hydraulic drive system is widely used in the field of bending machines and is a mature existing technology. The hydraulic drive system will not be described in detail in this application.

[0031] To further explain, the locking mechanism includes a fixed bracket 15 fixedly installed on both sides of the die clamp 2 and a sliding rod 18. The mounting base 4 has a limit hole 16, and both sides of the die clamp 2 have insertion holes 17. The insertion rod 18 is adapted to the limit hole 16 and the insertion hole 17.

[0032] Before replacing the first bending blade 7 with the second bending blade 8, the insert rod 18 is pulled out from the limiting hole 16 and the insertion hole 17. After the second bending blade 8 is replaced, the insert rod 18 is reinserted into the limiting hole 16 and the insertion hole 17. The insert rod 18, together with the insertion hole 17 and the limiting hole 16, fixes the position of the mounting base 4 on one side of the die clamp 2, thereby improving the stability of the second bending blade 8 under the die clamp 2 after replacement, thus improving the stability of the second bending blade 8 during the bending process and ensuring the bending effect.

[0033] To further explain, a baffle 19 is fixedly installed on the outside of the insertion rod 18, and a first spring 20 is fixedly connected to one side of the baffle 19. One end of the first spring 20 is fixedly installed to the fixing frame 15, and the first spring 20 is sleeved on the outside of the insertion rod 18.

[0034] Before replacing the second bending blade 8, pull the insert rod 18 to move it out of the limiting hole 16 and the insertion hole 17. The insert rod 18 drives the baffle 19 to move, and the baffle 19 compresses and deforms the first spring 20. After the second bending blade 8 is adjusted, release the insert rod 18. The compressed first spring 20 returns to its initial state and pushes the insert rod 18 back into the limiting hole 16 and the insertion hole 17, thus locking the mounting base 4 and improving the convenience of fixing the second bending blade 8.

[0035] Furthermore, a groove 21 is provided on one side of the mounting block 3, and the lower mold 12 is slidably installed in the groove 21. A baffle 23 is provided in the mounting block 3.

[0036] One end of the slide 21 is connected to the outside of the mounting block 3. After replacing the second bending blade 8, the lower die 12 corresponding to the first bending blade 7 is removed from the slide 21. Then, the lower die 12 corresponding to the second bending blade 8 is installed into the slide 21. The baffle 23 can limit the lower die 12 in the slide 21, so that the lower die 12 is stably installed in the slide 21, improving the stability of the lower die 12 during the bending process and ensuring the bending quality of the sheet metal.

[0037] Furthermore, the mounting block 3 has a mounting groove 22, in which a baffle 23 is slidably connected. A second spring 26 is fixedly installed at the bottom of the baffle 23, and one end of the second spring 26 is fixed to the bottom of the mounting groove 22.

[0038] When replacing the lower mold 12, press down the baffle 23 in the mounting groove 22. At this time, the baffle 23 does not obstruct the movement of the lower mold 12 in the slide groove 21. At the same time, the baffle 23 compresses and deforms the second spring 26, allowing the lower mold 12 to slide out smoothly from the slide groove 21. After the new lower mold 12 is slidably installed in the lower mold 12, release the baffle 23. The compressed second spring 26 pushes the baffle 23 upward to return to its initial state. The baffle 23 blocks one side of the lower mold 12, thereby restricting the lower mold 12 in the slide groove 21 and improving the stability of the lower mold 12 installed in the slide groove 21.

[0039] Furthermore, a movable groove 24 is provided on one side of the mounting block 3. The movable groove 24 is connected to the mounting groove 22. A push plate 25 is slidably connected in the movable groove 24. The push plate 25 is fixed to one side of the baffle 23.

[0040] By pressing the push plate 25, the push plate 25 moves downward in the movable groove 24. The movable groove 24 drives the baffle 23 to move downward, releasing the restriction of the baffle 23 on the lower mold 12. The push plate 25 makes it easier for the operator to press down the baffle 23, improving the convenience of using the device.

[0041] The specific operation is as follows: The hydraulic system in the bending machine 1 drives the die clamp 2 to move upward, which in turn moves the first bending cutter 7 downward. The first bending cutter 7, in conjunction with the lower die 12, bends the sheet metal. When the second bending cutter 8 is needed for bending, the insert rod 18 is pulled to move it out of the limiting hole 16 and the insertion hole 17. The electric push rod 14 then moves the mounting base 4 downward. The mounting base 4, through the rotating shaft 5, moves the rotating roller 6 downward, causing the third bending cutter 9 to move out of the slot 11. Then, the operator rotates the rotating roller 6 to move the second bending cutter 8 to the lower position. The electric push rod 14 then moves the mounting base 4 upward, causing the fourth bending cutter to be bent. The blade 10 is inserted into the slot 11, the insert rod 19 is released, and the first spring 20 pushes the insert rod 18 to re-insert into the limiting hole 16 and the insertion hole 17, thus locking the mounting base 4 and fixing the second bending blade 8 under the die clamp 2. Then, by pressing the push plate 25, the baffle 23 is moved downward, and the lower die 12 corresponding to the first bending blade 7 is moved out of the slide groove 21. The lower die 12 corresponding to the second bending blade 8 is inserted into the slide groove 21. The push plate 25 is released, and the second spring 26 pushes the baffle 23 upward, so that the baffle 23 limits one side of the lower die 12 and fixes it in the slide groove 21. Then, the second bending blade 8, together with the lower die 12, can perform bending operations on the sheet metal.

[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A bending machine with a movable die clamp, characterized in that, The device includes a bending machine (1), in which a die clamp (2) is slidably installed. Mounting plates (13) are fixedly connected to both sides of the die clamp (2). An electric push rod (14) is fixedly installed under the mounting plate (13). A mounting base (4) is fixedly connected to the output end of the electric push rod (14). A rotating shaft (5) is rotatably installed between the two sets of mounting bases (4). A rotating roller (6) is fixedly connected to the outside of the rotating shaft (5). The rotating roller (6) is fixedly mounted on the outside of... The machine is equipped with a first bending cutter (7), a second bending cutter (8), a third bending cutter (9) and a fourth bending cutter (10). The bottom of the die clamp (2) is provided with a slot (11) which is adapted to the third bending cutter (9). The bending machine (1) is fixedly installed with an installation block (3). The lower die (12) is slidably installed on the installation block (3). The lower die (12) is adapted to the first bending cutter (7). The die clamp (2) is provided with locking mechanisms on both sides.

2. A bending machine with a movable die clamp according to claim 1, characterized in that, The locking mechanism includes a fixed bracket (15) fixedly installed on both sides of the die clamp (2) and a sliding rod (18). The mounting base (4) has a limit hole (16). The die clamp (2) has insertion holes (17) on both sides. The insertion rod (18) is adapted to the limit hole (16) and the insertion hole (17).

3. A bending machine with a movable die clamp according to claim 2, characterized in that, A baffle (19) is fixedly installed on the outside of the insert rod (18). A first spring (20) is fixedly connected to one side of the baffle (19). One end of the first spring (20) is fixedly installed with the fixing frame (15). The first spring (20) is sleeved on the outside of the insert rod (18).

4. A bending machine with a movable die clamp according to claim 3, characterized in that, A groove (21) is provided on one side of the mounting block (3), the lower mold (12) is slidably installed in the groove (21), and a baffle (23) is provided in the mounting block (3).

5. A bending machine with a movable die clamp according to claim 4, characterized in that, The mounting block (3) has a mounting groove (22), and a baffle (23) is slidably connected in the mounting groove (22). A second spring (26) is fixedly installed at the bottom of the baffle (23), and one end of the second spring (26) is fixed to the bottom of the mounting groove (22).

6. A bending machine with a movable die clamp according to claim 5, characterized in that, The mounting block (3) has a movable groove (24) on one side, which is connected to the mounting groove (22). A push plate (25) is slidably connected in the movable groove (24), and the push plate (25) is fixed on one side of the baffle (23).