Metal plate bending mechanism
By designing the buffering and reset structure of hydraulic buffer rods, buffer springs and return springs in the sheet metal bending mechanism, the problems of sheet metal parts being easily damaged during the bending process and cumbersome work flow are solved, and high-quality bending of sheet metal parts and efficient continuity of production processes are achieved.
Patent Information
- Application Number
- CN202421878386.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing sheet metal bending mechanisms require huge pressure to be applied during bending operations, resulting in sheet metal parts being vulnerable to damage and lack the functions of rapid repositioning and mold removal, resulting in cumbersome and inefficient workflows.
A sheet metal bending mechanism is designed, including a base plate, a lower mold, a buffer and a reset structure. The buffering and reset structures include hydraulic buffer rods, buffering springs and return springs. These structures slow down the downforce when the sheet metal is bent, and quickly rebounds after the bend is completed to achieve mold release and reset.
It effectively reduces the risk of sheet metal damage due to huge pressure, ensures its quality and integrity, and improves work efficiency through rapid mold release and reset, reduces the need for manual intervention, and ensures the continuity and stability of the production process.
Smart Images
Figure CN222873080U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sheet metal processing, in particular to a sheet metal bending mechanism. Background Art
[0002] The origin of the term sheet metal is mainly derived from the general term for the processing technology of metal thin plates. Sheet metal parts are widely used. In the field of industrial manufacturing, they are often used to manufacture the shells, frames, protective devices, etc. of various equipment. The reason why sheet metal parts are widely used is that they are relatively low in cost and easy to obtain. Secondly, through sheet metal processing technology, thin plates can be made into various complex shapes and structures to meet the design requirements of different products. In addition, sheet metal parts have good strength and durability, and can maintain stable performance under different environments and working conditions.
[0003] The shortcomings of the existing sheet metal bending mechanism are as follows: during the bending operation, huge pressure needs to be applied to achieve the bending effect. In this case, no effective buffer structure is set at the bottom of the sheet metal, which leads to the direct action of strong pressure. The sheet metal is extremely susceptible to serious damage, thereby affecting its quality and performance, and may even cause irreparable damage. In addition, after the bending work is completed, the existing device does not have the function of rapid return and rapid demolding. This lack makes the entire workflow extremely cumbersome and inefficient, because the staff have to move the sheet metal manually to achieve the return and demolding effects. This manual operation not only increases the labor intensity of the staff, but also reduces work efficiency. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the utility model provides a sheet metal bending mechanism, including a bottom plate and a lower mold assembled on the top of the bottom plate, and a buffer and reset structure located inside the mold;
[0005] The buffer and reset structure includes a hydraulic buffer rod A and a hydraulic buffer rod B, and a buffer spring and a reset spring sleeved outside the hydraulic buffer rod A and the hydraulic buffer rod B. The top of the hydraulic buffer rod A is fixedly connected with a movable block.
[0006] Preferably, extension blocks are provided on both sides of the movable block close to the return spring, and the top of the B hydraulic buffer rod is fixedly connected to the bottom of the extension block.
[0007] Preferably, a bending groove is provided on the inner wall of the lower mold, and hidden grooves are provided on the front and back sides of the bending groove respectively.
[0008] Preferably, the A hydraulic buffer rod and buffer spring are both fixedly mounted on the inner top wall of the bending groove.
[0009] Preferably, the B hydraulic buffer rod and the return spring are both fixedly mounted on the inner bottom wall of the hidden groove.
[0010] Preferably, it also includes an upper mold located above the lower mold, a support plate located above the lower mold and fixedly connected to the back of the base plate, and a cylinder fixedly mounted on the top of the support plate, wherein the output end of the cylinder is fixedly connected to the top surface of the upper mold.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] The utility model adopts the design of buffering and resetting structure, so that when the sheet metal part is bent, the top of the sheet metal part contacts the upper mold and the bottom of the sheet metal part contacts the lower mold. In the process of continuous downward pressure, the sheet metal part will gradually come into contact with the movable block. Once in contact, the movable block will be subjected to force and the extension block will be subjected to force accordingly. At this time, the A hydraulic buffer rod, the B hydraulic buffer rod, the buffer spring and the reset spring will bear the force at the same time, among which the A hydraulic buffer rod and the buffer spring can effectively reduce the downward pressure borne by the sheet metal part, thereby greatly reducing the risk of the sheet metal part being damaged by huge pressure, ensuring the quality and integrity of the sheet metal part, and when the bending operation of the sheet metal part is completed, the B hydraulic buffer rod and the reset spring will accumulate elastic potential energy in the previous force-bearing process. Under the strong action of this elastic potential energy, they will rebound quickly and drive the movable block to reset. This reset action can quickly achieve the effect of demoulding and resetting, greatly improve work efficiency, reduce the need for manual intervention, and also provide convenience for subsequent processing operations, ensuring the continuity and stability of the entire production process. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the front view structure of the utility model;
[0015] Figure 3 This is a left-side structural schematic diagram of the utility model;
[0016] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the utility model;
[0017] Figure 5 This is a schematic diagram of the buffering and resetting structure of the utility model.
[0018] In the figure: 1. bottom plate; 2. lower mold; 21. bending groove; 22. hidden groove; 3. buffer and reset structure; 31. hydraulic buffer rod A; 32. hydraulic buffer rod B; 33. buffer spring; 34. reset spring; 35. movable block; 36. extension block; 4. upper mold; 5. support plate; 6. cylinder. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figures 1 to 5 As shown, the utility model provides a sheet metal bending mechanism, a sheet metal bending mechanism, characterized in that: it comprises a bottom plate 1 and a lower mold 2 assembled on the top of the bottom plate 1, and a buffer and reset structure 3 located inside the mold;
[0021] The buffer and reset structure 3 includes a hydraulic buffer rod A 31 and a hydraulic buffer rod B 32 , and a buffer spring 33 and a reset spring 34 sleeved on the outside of the hydraulic buffer rod A 31 and the hydraulic buffer rod B 32 . A movable block 35 is fixedly connected to the top of the hydraulic buffer rod A 31 .
[0022] The above scheme is adopted: through the design of the buffer and reset structure 3, when the sheet metal is bent, the top of the sheet metal contacts the upper mold 4 and the bottom contacts the lower mold 2. In the process of continuous downward pressure, the sheet metal will gradually contact the movable block 35. Once in contact, the movable block 35 will be subjected to force and the extension block 36 will be subjected to force. At this time, the A hydraulic buffer rod 31, the B hydraulic buffer rod 32, the buffer spring 33 and the reset spring 34 will bear the force at the same time, among which the A hydraulic buffer rod 31 and the buffer spring 33 can effectively reduce the downward pressure on the sheet metal, thereby greatly The risk of sheet metal parts being damaged due to huge pressure is greatly reduced, and the quality and integrity of sheet metal parts are ensured. When the bending operation of the sheet metal parts is completed, the B hydraulic buffer rod 32 and the reset spring 34 will rebound quickly due to the elastic potential energy accumulated in the previous force-bearing process, and drive the movable block 35 to reset. This reset action can quickly achieve the effects of demoulding and resetting, greatly improve work efficiency, reduce the need for manual intervention, and also provide convenience for subsequent processing operations, ensuring the continuity and stability of the entire production process.
[0023] like Figures 1 to 5 As shown, the movable block 35 is provided with extension blocks 36 on both sides close to the return spring 34 , the top of the B hydraulic buffer rod 32 is fixedly connected to the bottom of the extension block 36 , and the A hydraulic buffer rod 31 and the buffer spring 33 are both fixedly mounted on the inner top wall of the bending groove 21 .
[0024] The above scheme is adopted: A hydraulic buffer rod 31 and buffer spring 33 work together to play a vital buffering role in the bending process of sheet metal parts. When huge downward pressure acts on the sheet metal parts, the hydraulic oil inside the A hydraulic buffer rod 31 generates damping force through a specific throttle hole, effectively absorbing and dissipating the impact energy of the pressure. At the same time, the buffer spring 33 further resists and buffers the downward pressure with its own elastic characteristics. Their joint action greatly reduces the instantaneous impact of pressure, avoids the sheet metal parts from being damaged by plastic deformation, cracks or even fractures due to excessive pressure, thereby effectively ensuring the structural integrity and dimensional accuracy of the sheet metal parts.
[0025] like Figures 1 to 5 As shown, the hydraulic buffer rod 32 and the return spring 34 are both fixedly mounted on the inner bottom wall of the hidden groove 22 .
[0026] The above scheme is adopted: B hydraulic buffer rod 32 and return spring 34 are mainly responsible for the rebound action after the bending operation is completed. When the bending process is completed, B hydraulic buffer rod 32 and return spring 34 are compressed and store elastic potential energy. Once the bending is completed, this part of the accumulated energy is released, and the return spring 34 quickly stretches to generate a strong rebound force. At the same time, the hydraulic oil inside the B hydraulic buffer rod 32 pushes the piston under the action of the pressure difference, assisting the spring to work together. This rebound force prompts the parts connected to it to quickly reset, achieving the effect of rapid demoulding and rapid reset, which not only greatly improves production efficiency and reduces production cycle, but also provides convenient conditions for subsequent continuous processing operations, ensuring the smooth progress and efficient utilization of the entire production process.
[0027] like Figures 1 to 5 As shown, it also includes an upper mold 4 located above the lower mold 2, a support plate 5 located above the lower mold 2 and fixedly connected to the back of the base plate 1, and a cylinder 6 fixedly installed on the top of the support plate 5, and the output end of the cylinder 6 is fixedly connected to the top surface of the upper mold 4.
[0028] By adopting the above solution, the cylinder 6 can push the upper mold 4 downward to cooperate with the lower mold to achieve the bending effect, and the support plate 5 can fix the positions of the cylinder 5 and the upper mold 4.
[0029] The working principle and use process of this utility model:
[0030] First, place the sheet metal in a suitable position so that its top contacts the upper mold 4 and its bottom contacts the lower mold 2, and prepare for the bending operation. As the bending process progresses, the sheet metal will gradually contact the movable block 35 when the pressure is continuously pressed down. Once the sheet metal contacts the movable block 35, the movable block 35 is subjected to force, which in turn drives the extension block 36 to be subjected to force. At this moment, the A hydraulic buffer rod 31, the B hydraulic buffer rod 32, the buffer spring 33 and the return spring 34 will bear the force at the same time, among which the A hydraulic buffer rod 31 and the buffer spring 33 can effectively absorb and slow down the The huge downward pressure on the sheet metal parts can greatly reduce the risk of damage to the sheet metal parts due to excessive pressure through this buffering effect. When the bending operation of the sheet metal parts is successfully completed, the B hydraulic buffer rod 32 and the return spring 34 have accumulated elastic potential energy due to the previous force. At this time, under the action of the elastic potential energy, they will rebound quickly, and the rebound force drives the movable block 35 to reset accurately. This reset process provides great convenience for subsequent processing operations, effectively ensures the continuity and stability of the entire production process, and helps to improve the overall production efficiency and product quality.
[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sheet metal bending mechanism, characterized in that: It comprises a bottom plate (1), a lower mold (2) mounted on the top of the bottom plate (1), and a buffer and reset structure (3) located inside the mold; The buffer and reset structure (3) comprises an A hydraulic buffer rod (31) and a B hydraulic buffer rod (32), and a buffer spring (33) and a reset spring (34) sleeved outside the A hydraulic buffer rod (31) and the B hydraulic buffer rod (32); a movable block (35) is fixedly connected to the top of the A hydraulic buffer rod (31).
2. A sheet metal bending mechanism according to claim 1, characterized in that: Extension blocks (36) are arranged on both sides of the movable block (35) close to the return spring (34), and the top of the B hydraulic buffer rod (32) is fixedly connected to the bottom of the extension block (36).
3. A sheet metal bending mechanism according to claim 1, characterized in that: The inner wall of the lower mold (2) is provided with a bending groove (21), and the front and back sides of the bending groove (21) are respectively provided with hidden grooves (22).
4. A sheet metal bending mechanism according to claim 1, characterized in that: The A hydraulic buffer rod (31) and the buffer spring (33) are both fixedly mounted on the inner top wall of the bending groove (21).
5. The sheet metal bending mechanism according to claim 1, characterized in that: The B hydraulic buffer rod (32) and the return spring (34) are both fixedly mounted on the inner bottom wall of the hidden groove (22).
6. A sheet metal bending mechanism according to claim 1, characterized in that: It also includes an upper mold (4) located above the lower mold (2), a support plate (5) located above the lower mold (2) and fixedly connected to the back of the bottom plate (1), and a cylinder (6) fixedly mounted on the top of the support plate (5), wherein the output end of the cylinder (6) is fixedly connected to the top surface of the upper mold (4).