Pressing cutter deflection compensation mechanism for bending center

Abstract

The utility model discloses a pressing knife deflection compensation mechanism for a bending center, which comprises a bending device, a fixing plate fixedly mounted on the outer wall of the bending device, a mounting plate fixedly mounted on the upper end face of the fixing plate, a lower pressing knife fixedly mounted on the upper end face of the mounting plate, a plurality of upper ejection blocks fixedly mounted on the bottom wall of the mounting plate, and a plurality of lower ejection blocks fixedly mounted on the bottom wall of the mounting plate. A plurality of prismatic rods are slidably mounted on the outer wall of the fixing plate through connecting plates, a pressed block is fixedly mounted on the outer wall of each prismatic rod, and a pressed slope is formed in the bottom wall of each pressed block. Through the arrangement of components such as the screw rod, the extrusion block, the pressed block and the upper ejection block, an operator can drive the screw rod to rotate by rotating the rocking wheel, so that the extrusion block moves and pushes the pressed block to slide upwards, upward supporting force is applied to the lower pressing cutter through the upper ejection block, deflection deformation generated by stress of the lower pressing cutter is effectively compensated, and the pressing cutter is prevented from being damaged. And the bending precision and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of bending center equipment technology, and in particular to a pressure knife deflection compensation mechanism for bending centers. Background Technology

[0002] Bending center equipment is a high-efficiency, automated sheet metal processing equipment, mainly used for bending metal sheets. Through multi-axis linkage, it automatically completes sheet metal operations, eliminating the reliance on molds and manual labor in the traditional bending process, and significantly improving production efficiency and precision.

[0003] In actual production, the pressure cutter is prone to deflection deformation when subjected to high pressure. This is because when bending thick or high-strength plates, the stress distribution on the pressure cutter is uneven, causing it to bend along its length. This deflection deformation can lead to a series of serious problems, such as uneven distribution of contact pressure between the pressure cutter and the plate, making it difficult to guarantee the accuracy of the bending angle and dimensions of the plate. This greatly affects the consistency and quality stability of the product, increases the defect rate, and reduces its practicality. Therefore, it is necessary to redesign a pressure cutter deflection compensation mechanism for the bending center to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pressure knife deflection compensation mechanism for bending centers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure knife deflection compensation mechanism for a bending center includes a bending device. A fixing plate is fixedly installed on the outer wall of the bending device. An mounting plate is fixedly installed on the upper surface of the fixing plate. A lower pressure knife is fixedly installed on the upper surface of the mounting plate. Multiple upper blocks are fixedly installed on the bottom wall of the mounting plate. Multiple prismatic rods are slidably installed on the outer wall of the fixing plate via a connecting plate. A pressure block is fixedly installed on the outer wall of each prismatic rod. A pressure slope is formed on the bottom wall of each pressure block. The upper surface of each pressure block is connected to the bottom wall of the connecting plate via a reset mechanism. A support frame is fixedly installed on the outer wall of the fixing plate. Multiple screws are rotatably installed through the outer wall of the support frame via threads. An extrusion block is rotatably connected to the end of each screw via a connecting mechanism. An extrusion slope is formed on the upper surface of each extrusion block. A rocker wheel is fixedly installed on the outer wall of each screw.

[0007] Preferably, the reset mechanism includes a reset spring installed on the outer wall of the prism rod, and the two ends of the reset spring are elastically connected to the bottom wall of the connecting plate and the upper end face of the pressure block, respectively.

[0008] Preferably, the connecting mechanism includes a connecting block fixedly installed at the end of the screw, the end of which is rotatably connected to the outer wall of the extrusion block.

[0009] Preferably, two stabilizing rods are fixedly installed on the outer wall of each extrusion block, and each stabilizing rod slides through the support frame.

[0010] Preferably, multiple reinforcing plates are fixedly installed on the bottom wall of the support frame, and the end of each reinforcing plate is fixedly connected to the outer wall of the fixed plate.

[0011] The beneficial effects of this utility model are:

[0012] By setting up components such as a screw, extrusion block, pressure block, and top block, the operator can rotate the rocker wheel to drive the screw to rotate, thereby moving the extrusion block and pushing the pressure block to slide upward. The top block applies an upward supporting force to the lower pressing knife, effectively compensating for the deflection deformation of the lower pressing knife caused by the force, thus improving bending accuracy and product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a pressure knife deflection compensation mechanism for bending center proposed in this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0015] Figure 3 This is a side vertical section diagram of a pressure knife deflection compensation mechanism for bending center proposed in this utility model.

[0016] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0017] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0018] In the diagram: 1 Bending device, 2 Fixed plate, 3 Mounting plate, 4 Lower pressure knife, 5 Upper top block, 6 Connecting plate, 7 Rhomboid rod, 8 Pressure block, 9 Return spring, 10 Support frame, 11 Screw, 12 Connecting block, 13 Extrusion block, 14 Rocker wheel, 15 Stabilizing rod, 16 Reinforcing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5A pressure knife deflection compensation mechanism for a bending center includes a bending device 1. A fixing plate 2 is fixedly installed on the outer wall of the bending device 1. An mounting plate 3 is fixedly installed on the upper end face of the fixing plate 2. A lower pressure knife 4 is fixedly installed on the upper end face of the mounting plate 3. Multiple upper top blocks 5 are fixedly installed on the bottom wall of the mounting plate 3. Multiple prismatic rods 7 are slidably installed on the outer wall of the fixing plate 2 through a connecting plate 6. A pressure block 8 is fixedly installed on the outer wall of each prismatic rod 7. A pressure slope is provided on the bottom wall of each pressure block 8. The upper end face of each pressure block 8 is connected to the bottom wall of the connecting plate 6 through a reset mechanism. A support frame 10 is fixedly installed on the outer wall of the fixing plate 2. Multiple screws 11 are threadedly rotatably installed on the outer wall of the support frame 10. An extrusion block 13 is rotatably connected to the end of each screw 11 through a connecting mechanism. An extrusion slope is provided on the upper end face of each extrusion block 13. A rocker wheel 14 is fixedly installed on the outer wall of each screw 11.

[0021] The reset mechanism includes a reset spring 9 installed on the outer wall of the prism rod 7. The two ends of the reset spring 9 are elastically connected to the bottom wall of the connecting plate 6 and the upper end face of the pressure block 8, respectively.

[0022] Furthermore, the return spring 9 is made of high-quality spring steel with a high elastic coefficient and has undergone rigorous fatigue testing. It can maintain stable elastic performance during long-term use, ensuring that the pressure block 8 returns to its original position in a timely manner.

[0023] The connecting mechanism includes a connecting block 12 fixedly installed at the end of the screw 11, and the end of the connecting block 12 is rotatably connected to the outer wall of the extrusion block 13.

[0024] Furthermore, the connecting block 12 and the screw 11 are fixed by welding, resulting in high connection strength; the connecting block 12 and the extrusion block 13 are connected by a high-precision bearing, which allows for flexible rotation, effectively reduces friction, and ensures smooth movement of the extrusion block 13.

[0025] Two stabilizing rods 15 are fixedly installed on the outer wall of each extrusion block 13, and each stabilizing rod 15 slides through the support frame 10.

[0026] Furthermore, the surface of the stabilizer bar 15 is hardened, resulting in high hardness and good wear resistance. It also has high precision in fitting with the sliding hole of the support frame 10, which can effectively prevent the extrusion block 13 from shifting or shaking during movement.

[0027] Multiple reinforcing plates 16 are fixedly installed on the bottom wall of the support frame 10, and the end of each reinforcing plate 16 is fixedly connected to the outer wall of the fixed plate 2.

[0028] Furthermore, the reinforcing plate 16 adopts a triangular structure design and is firmly connected to the support frame 10 and the fixing plate 2 by welding, which significantly enhances the structural strength and overall stability of the support frame 10 and ensures that the compensation mechanism can operate stably under high load.

[0029] When using this utility model, the operator can judge the degree of deflection and deformation of the pressing knife 4 by measuring equipment or experience, and then rotate the rocker wheel 14 to drive the screw 11 to rotate. Since there is a precise threaded connection between the screw 11 and the support frame 10, the screw 11 will move stably along the axial direction when it rotates. The end of the screw 11 is rotatably connected to the extrusion block 13 through the connecting block 12. Therefore, the movement of the screw 11 will drive the extrusion block 13 to move synchronously. Here, the principle of screw transmission is used to efficiently convert the circular motion of the rocker wheel 14 into the linear motion of the extrusion block 13.

[0030] The extrusion ramp on the upper end of the extrusion block 13 and the pressure ramp on the bottom wall of the pressure block 8 are in contact with each other. This ramp structure is designed based on the principle of force saving and force decomposition of the ramp. It can convert the horizontal thrust of the extrusion block 13 into the upward component force of the pressure block 8. As the extrusion block 13 moves, the extrusion ramp will generate an upward component force on the pressure ramp, causing the pressure block 8 to slide upward under the guidance of the prism rod 7. When the pressure block 8 moves upward, it will compress the return spring 9 and push the upper top block 5 on the mounting plate 3 to move upward, thereby applying an upward support force to the lower pressing knife 4. When the lower pressing knife 4 undergoes downward deflection deformation due to force, this support force can offset part of the deformation, realize the compensation of the deflection of the lower pressing knife 4, and ensure that the lower pressing knife 4 maintains good flatness and accuracy during the bending process. For example, for thicker high-strength plates, the rocker wheel 14 can be rotated more to increase the compensation force, while for thinner ordinary plates, the rotation amplitude of the rocker wheel 14 can be reduced.

[0031] When the bending operation is completed or the compensation force needs to be adjusted, the rocker wheel 14 is rotated in the opposite direction, and the screw 11 drives the pressing block 13 to move in the opposite direction, reducing the pressure on the pressure block 8. At this time, the return spring 9 restores its deformation and pushes the pressure block 8 to slide downward, so that the entire compensation mechanism is reset so that the next compensation operation can be performed. During the reset process, the sliding cooperation between the prism rod 7 and the connecting plate 6, as well as the guiding effect of the stabilizing rod 15 and the support frame 10, can ensure that the pressure block 8 is accurately reset and reduce the accumulation of errors.

[0032] 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 pressure knife deflection compensation mechanism for a bending center, comprising a bending device (1), characterized in that, The bending equipment (1) has a fixed plate (2) fixedly installed on its outer wall. An installation plate (3) is fixedly installed on the upper surface of the fixed plate (2). A lower pressure knife (4) is fixedly installed on the upper surface of the installation plate (3). Multiple upper top blocks (5) are fixedly installed on the bottom wall of the installation plate (3). Multiple prismatic rods (7) are slidably installed on the outer wall of the fixed plate (2) through a connecting plate (6). Each prismatic rod (7) has a pressure block (8) fixedly installed on its outer wall. Each pressure block (8) has a pressure-bearing opening on its bottom wall. The upper surface of each of the pressure blocks (8) is connected to the bottom wall of the connecting plate (6) through a reset mechanism. A support frame (10) is fixedly installed on the outer wall of the fixing plate (2). Multiple screws (11) are installed through the outer wall of the support frame (10) by threaded rotation. Each screw (11) is rotatably connected to an extrusion block (13) at its end through a connecting mechanism. An extrusion ramp is provided on the upper surface of each extrusion block (13). A rocker wheel (14) is fixedly installed on the outer wall of each screw (11).

2. The pressure knife deflection compensation mechanism for the bending center according to claim 1, characterized in that, The reset mechanism includes a reset spring (9) installed on the outer wall of the prism rod (7), and the two ends of the reset spring (9) are elastically connected to the bottom wall of the connecting plate (6) and the upper end face of the pressure block (8), respectively.

3. The pressure knife deflection compensation mechanism for the bending center according to claim 2, characterized in that, The connecting mechanism includes a connecting block (12) fixedly installed at the end of the screw (11), and the end of the connecting block (12) is rotatably connected to the outer wall of the extrusion block (13).

4. The pressure knife deflection compensation mechanism for bending center according to claim 3, characterized in that, Two stabilizing rods (15) are fixedly installed on the outer wall of each extrusion block (13), and each stabilizing rod (15) slides through the support frame (10).

5. A pressure knife deflection compensation mechanism for a bending center according to claim 4, characterized in that, The bottom wall of the support frame (10) is fixedly installed with multiple reinforcing plates (16), and the end of each reinforcing plate (16) is fixedly connected to the outer wall of the fixing plate (2).

Images