A translational bending mechanism

Abstract

This utility model relates to a translational bending mechanism, comprising two sets of flipping seats, a tool holder, and a translational drive element. The two sets of flipping seats are movably and rotatably mounted on a frame at the bending center, and each set of flipping seats has a guide rod assembly on its inner side. The two ends of the tool holder are movably mounted on the guide rod assembly, and a tool is fixedly mounted on the top of the tool holder. The translational drive element is fixedly mounted on the flipping seat, and its output end is fixedly connected to the tool holder to drive the tool holder to move. This utility model uses the translational drive element and guide rod assembly to drive the tool to translate a certain distance during the flipping process, fine-tuning the tool's position and thus preventing the tool from colliding with the positioning table or bottom tool after flipping 180°.

Description

Technical Field

[0001] This utility model relates to a translational bending mechanism, belonging to the technical field of bending equipment. Background Technology

[0002] A bending center is a CNC machine capable of continuously bending thin plates. It typically includes a positioning table, a bottom cutter, and a bending mechanism. The plate is fed onto the positioning table, where it is held and fixed by the bottom cutter, and then bent by the bending mechanism, thus achieving automated processing of the plate.

[0003] During continuous bending, the cutting tool needs to frequently switch between upward bending and downward bending modes. When the cutting tool is flipped, if it is set to flip 180°, the tool will collide with the positioning table or bottom cutter due to its own thickness; if it is set to flip less than 180°, the cutting edge of the tool will not be vertically aligned upwards, and the bending process cannot be performed normally.

[0004] The traditional approach is to use a set of eccentric shafts to offset the tool by a certain distance during rotation (set according to the thickness of the tool itself), so that its rotation stroke is not enough to reach 180°, thereby avoiding collision between the tool and the positioning machine or bottom tool.

[0005] The aforementioned existing technology has the following drawbacks: when the thickness of the sheet metal is different or the bending requirements are different, it is often necessary to change to a tool of different thickness for bending. However, due to the structural characteristics of the eccentric shaft, its swing distance cannot be adjusted. Therefore, when changing to a tool of different thickness, it is necessary to match a corresponding eccentric shaft for replacement, which increases the processing cost and operating cost of the equipment.

[0006] Therefore, the research objective of this utility model is to provide a translational bending mechanism that can adjust its position according to the thickness of the cutting tool itself. Utility Model Content

[0007] To address the shortcomings of the aforementioned technologies, this utility model provides a translational bending mechanism. By using a translational driving element and a guide rod assembly to drive the cutter to translate a certain distance during the flipping process, the position of the cutter is finely adjusted, thereby preventing the cutter from colliding with the positioning machine table or bottom cutter after flipping 180°.

[0008] To solve the problems of the existing technology, the technical solution adopted by this utility model is as follows: A translational bending mechanism includes two sets of flipping seats, a tool holder, and translational drive elements; The two sets of flip seats are movably and flip-foldably mounted on the frame at the bending center, and each set of flip seats has a guide rod assembly on its inner side; The two ends of the tool holder are movably mounted on the guide rod assembly, and the top of the tool holder is fixedly equipped with a tool; The translation drive element is fixedly mounted on the flipping base, and the output end of the translation drive element is fixedly connected to the tool holder to drive the tool holder to move.

[0009] Furthermore, each set of the flip seats includes a base and a support plate, with the support plate fixedly disposed on one side of the base.

[0010] Furthermore, the guide rod assembly includes two or more sets of guide rods and linear bearings. The two ends of each set of guide rods are fixedly mounted on the base and the support plate, respectively. The linear bearings are movably mounted on the guide rods, and the two ends of the tool holder are fixedly connected to the linear bearings.

[0011] Furthermore, the translation drive element is configured as a servo worm gear screw jack, and the output end of the translation drive element is configured as a first screw, one end of which is fixedly provided with a connecting flange, which is fixedly connected to the tool holder.

[0012] Furthermore, it also includes two sets of sliding seats, which are fixedly mounted on the frame at the bending center, and the inner side of each set of sliding seats is connected to a second lead screw via a lead screw nut.

[0013] Furthermore, the two sets of flip seats are movably mounted on the two sets of sliding seats via slide rails, and a first motor is fixedly mounted at the bottom of each set of flip seats. The first motor is connected to the second lead screw drive.

[0014] Furthermore, each of the two sets of sliding seats has a fixedly connected flip flange at the relatively far end, and the flip flange at the end far from the sliding seat is connected to a second motor.

[0015] The beneficial effects of this utility model are: 1. By driving the cutter to translate a certain distance during the flipping process through the translation drive element and the guide rod assembly, the position of the cutter is finely adjusted, thereby avoiding the cutter from colliding with the positioning machine table or bottom cutter after flipping 180°; 2. The guide rod assembly is provided with two or more sets of guide rods to provide support for the cutter and the tool holder, with more support points, greater bearing capacity, and more structural rigidity. Attached Figure Description

[0016] Figure 1 This is one of the structural schematic diagrams of this utility model.

[0017] Figure 2 This is the second structural schematic diagram of this utility model.

[0018] Figure 3 This is a schematic diagram of the tool holder of the flip-up seat of this utility model.

[0019] Figure 4This is a structural schematic diagram of one set of flipping base, guide rod assembly and translation drive element of this utility model.

[0020] Figure 5 This is a structural schematic diagram of one set of flip seats of this utility model.

[0021] Figure 6 This is a structural schematic diagram of the guide rod assembly of this utility model.

[0022] Figure 7 This is a partial structural schematic diagram of the present invention.

[0023] Figure 8 This is a schematic diagram of the structure of the sliding seat and the first motor of this utility model.

[0024] The components include: a flipping seat 10, a tool holder 20, a translation drive element 30, a guide rod assembly 40, a cutting tool 21, a base 11, a support plate 12, a guide rod 41, a linear bearing 42, a first lead screw 31, a connecting flange 32, a sliding seat 50, a lead screw nut 51, a second lead screw 52, ​​a first motor 13, a flipping flange 60, and a second motor 70. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the following description is provided in conjunction with the appendix. Figure 1-8 Further analysis of this utility model is then conducted.

[0026] like Figure 1-8 As shown, a translational bending mechanism includes two sets of flipping seats 10, a tool holder 20, and a translational drive element 30; The two sets of flip seats 10 are movably and flip-foldably mounted on the frame at the bending center, and each set of flip seats 10 has a guide rod assembly 40 on its inner side. The two ends of the tool holder 20 are movably mounted on the guide rod assembly 40, and the top of the tool holder 20 is fixedly provided with a tool 21; The translation drive element 30 is fixedly mounted on the two sets of flip seats 10, and the output end of the translation drive element 30 is fixedly connected to the tool holder 20 to drive the tool holder 20 to move.

[0027] In this embodiment, preferably, each set of flip seats 10 includes a base 11 and a support plate 12, and the support plate 12 is fixedly disposed on one side of the base 11.

[0028] In this embodiment, preferably, the guide rod assembly 40 includes two or more sets of guide rods 41 and linear bearings 42. The two ends of each set of guide rods 41 are respectively fixed on the base 11 and the support plate 12. The linear bearings 42 are movably mounted on the guide rods 41. The two ends of the tool holder 20 are fixedly connected to the linear bearings 42. The two or more sets of guide rods 41 provide support for the tool 21 and the tool holder 20. With more support points, the bearing capacity is greater and the structural rigidity is more sufficient.

[0029] In this embodiment, preferably, the translation drive element 30 is configured as a servo worm gear screw jack, and the output end of the translation drive element 30 is configured as a first screw 31. One end of the first screw 31 is fixedly provided with a connecting flange 32, which is fixedly connected to the tool holder 20. When the translation drive element 30 is working, it drives the first screw 31 to move, and drives the tool holder 20 to move on the guide rod assembly 40 through the first screw 31 and the connecting flange 32, thereby driving the tool 21 to translate a certain distance during the flipping process. This distance is set according to the thickness of the tool 21 itself, thereby avoiding the tool 21 from colliding with the positioning machine table or bottom tool after flipping 180°.

[0030] In this embodiment, preferably, it also includes two sets of sliding seats 50. The two sets of sliding seats 50 are fixed on the frame at the bending center, and the inner side of each set of sliding seats 50 is connected to a second lead screw 52 through a lead screw nut 51.

[0031] In this embodiment, preferably, the two sets of flip seats 10 are movably mounted on the two sets of sliding seats 50 via slide rails, and a first motor 13 is fixedly mounted at the bottom of each set of flip seats 10. The first motor 13 is connected to the second lead screw 52 for transmission. The first motor 13 drives the second lead screw 52 to rotate, and the lead screw nut 51 drives the sliding seat 50 to move on the slide rail, so that the flip seats 10 move relative to each other due to relative forces, thereby driving the cutter 21 away from or closer to the plate.

[0032] In this embodiment, preferably, a flip flange 60 is fixedly connected to one end of each of the two sets of sliding seats 50 that are relatively far apart. A second motor 70 is driven to the end of the flip flange 60 that is far away from the sliding seat 50. The second motor 70 and the flip flange 60 drive the sliding seat 50 to rotate and drive the flip seat 10 to flip, thereby driving the cutter 21 to flip and perform a bending process on the plate.

[0033] The working principle of this utility model is as follows: When it is necessary to bend the sheet metal from top to bottom, the second motor 70 drives the flipping seat 10 to flip above the positioning machine table. Then, the first motor 13 drives the flipping seat 10 to move downward, so that the cutter 21 abuts against the top of the sheet metal. Under the drive of the second motor 70, it flips downward at a certain angle to perform the downward bending process. When it is necessary to bend the sheet metal from bottom to top, the second motor 70 drives the flipping seat 10 to flip below the positioning machine table. During this process, the translation drive element 30 and the guide rod assembly 40 drive the cutter holder 20 to translate a certain distance to fine-tune the position of the cutter 21, thereby avoiding the cutter 21 from colliding with the positioning machine table or the bottom cutter after flipping 180°. Then, the first motor 13 drives the flipping seat 10 to move upward, so that the cutter 21 abuts against the bottom of the sheet metal. Under the drive of the second motor 70, it flips upward at a certain angle to perform the upward bending process. After each bend or before flipping, the flipping seat 10 needs to be moved up or down a certain distance to keep the cutter 21 away from the board and avoid contact between the cutter 21 and the board when flipping.

[0034] The translational bending mechanism provided by this utility model has a fixed flipping angle, multiple support points, greater load-bearing capacity, and stronger structural rigidity, making it suitable for bending relatively thick plates.

[0035] This document uses embodiments to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A translational bending mechanism characterized by: Includes two sets of tilting seats, tool holders, and translation drive components; The two sets of flip seats are movably and flip-foldably mounted on the frame at the bending center, and each set of flip seats has a guide rod assembly on its inner side; The two ends of the tool holder are movably mounted on the guide rod assembly, and the top of the tool holder is fixedly equipped with a tool; The translation drive element is fixedly mounted on the flipping seat, and the output end of the translation drive element is fixedly connected to the tool holder to drive the tool holder to move.

2. The translational bending mechanism of claim 1, wherein: Each set of the flip-up seats includes a base and a support plate, with the support plate fixedly mounted on one side of the base.

3. The translational bending mechanism according to claim 2, characterized in that: The guide rod assembly includes two or more sets of guide rods and linear bearings. The two ends of each set of guide rods are fixedly mounted on the base and the support plate, respectively. The linear bearings are movably mounted on the guide rods, and the two ends of the tool holder are fixedly connected to the linear bearings.

4. The translational bending mechanism according to claim 3, characterized in that: The translation drive element is configured as a servo worm gear screw jack, and the output end of the translation drive element is configured as a first screw. One end of the first screw is fixedly provided with a connecting flange, and the connecting flange is fixedly connected to the tool holder.

5. The translational bending mechanism of claim 1, wherein: It also includes two sets of sliding seats, which are fixedly mounted on the frame at the bending center, and the inner side of each set of sliding seats is connected to a second lead screw via a lead screw nut.

6. A translational bending mechanism according to claim 5, characterized in that: The two sets of flip seats are movably mounted on the two sets of sliding seats via slide rails, and a first motor is fixedly mounted at the bottom of each set of flip seats. The first motor is connected to the second lead screw drive.

7. A translational bending mechanism according to claim 6, characterized in that: Both sets of sliding seats have a fixed flip flange at their relatively far ends, and a second motor is driven to the end of the flip flange that is far from the sliding seat.

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