Numerical control bending angle adjusting device
By using a motor-driven lead screw and hydraulic system, combined with a scale sliding rod and a buffer pad, the problem of material swaying in existing CNC bending devices has been solved, achieving stable clamping and buffering of materials of different shapes and sizes, and improving processing accuracy and quality.
Patent Information
- Application Number
- CN202520360569.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Existing CNC bending devices have insufficient fixing methods when processing plates or steel bars of different shapes and sizes, causing the materials to shake during the bending process and affecting the quality of the finished product.
The system employs a motor-driven lead screw and hydraulic system, combined with a graduated sliding rod and a buffer pad, to achieve precise clamping and cushioning of the material, ensuring stability during the bending process.
Effectively prevents material from wobbling during bending, ensuring the stability and quality of the finished product. This achieves a clamping effect during processing, ensuring the stability of the material during bending and improving processing accuracy and quality.
Smart Images

Figure CN223916489U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of CNC bending equipment, specifically, it relates to a CNC bending angle adjustment device. Background Technology
[0002] In industrial production and processing, it is often necessary to process different materials, among which bending is a frequent process. Therefore, we need a CNC bending angle adjustment device.
[0003] According to the public announcement (CN219985965U), an angle adjustment mechanism for a CNC sheet metal bending machine is disclosed. This technology discloses a technical solution that includes "a base, an adjusting component inside the base, the adjusting component including a hydraulic rod, a bending plate and a connecting rod, the hydraulic rod being fixedly connected to the top of the base, the connecting rod being fixedly connected to the bottom of the bending plate, the piston rod of the hydraulic rod being fixedly connected to the bending plate, and a through groove being opened on the inner wall of the base, with the connecting rod sliding inside the through groove. This solution solves the problem in existing devices where the support block is supported and limited by a threaded rod and a threaded sleeve. When the sheet metal is subjected to pressure on the support block, the pressure between the threaded rod and the threaded sleeve may cause the support plate to shift, thus affecting the bending effect."
[0004] However, when bending, you may encounter materials such as plates or steel bars of different shapes and sizes. In this case, different fixing methods need to be adopted according to different contact surfaces, otherwise the material will shake during bending and affect the quality of the finished product.
[0005] To address the aforementioned problems, this application proposes a CNC bending angle adjustment device. Summary of the Invention
[0006] In view of the problems in the related technologies, this utility model proposes a CNC bending angle adjustment device to overcome the above-mentioned technical problems existing in the existing related technologies.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A CNC bending angle adjustment device includes a base, an electric cylinder fixedly connected to the top of the base, a baffle fixedly connected to the output end of the electric cylinder, a sliding tube fixedly connected to the top of the base, a sliding rod slidably connected to the inner wall of the sliding tube, a support frame fixedly connected to the top of the base, a platform rotatably connected to the surface of the support frame, a motor fixedly connected to the top of the platform, a lead screw fixedly connected to the output end of the motor, a clamping platform slidably connected to the surface of the platform, a liquid storage tank opened inside the clamping platform, a sliding groove opened through the liquid storage tank, a piston slidably connected to the clamping platform through the sliding groove, a clamping column fixedly connected to the side of the piston, and hydraulic oil filling the liquid storage tank and the sliding groove.
[0009] Preferably, the top end of the sliding rod is fixedly connected to the baffle, and the surface of the sliding rod is provided with a scale, which is used to adjust the bending angle.
[0010] Preferably, a torsion spring is fixedly connected to the side of the support frame, and the other end of the torsion spring is fixedly connected to the shelf. By setting the torsion spring, the shelf can rotate and reset after the material is removed from it.
[0011] Preferably, the surface of the lead screw is threadedly connected to the clamping platform, and one end of the lead screw is rotatably connected to the placement platform, thereby fixing the material by clamping it.
[0012] Preferably, a base plate is slidably connected to the top of the baffle, and a buffer pad is fixedly connected to the top of the base plate to facilitate the replacement of the buffer pad.
[0013] Preferably, a knob is rotatably connected to the side of the baffle, and the surface of the knob is in contact with the base plate to prevent the base plate from sliding out of the baffle.
[0014] In summary, the technical effects and advantages of this utility model are as follows: When the starting motor drives the lead screw to rotate, the clamping table moves inward until it contacts the material and continues to move, causing the clamping column under pressure to move the piston inward. At this time, the hydraulic oil is compressed, thereby pushing the piston that is not under pressure to move the clamping column outward, thus limiting the steel bar or plate that needs to be bent and preventing the material from shaking when being bent.
[0015] The buffer pad can cushion the lower contact surface of the material during bending to prevent damage. After the buffer pad ages and becomes damaged due to long-term use, it can be quickly replaced using the base plate and knob to avoid affecting the processing progress. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a cross-sectional view of the storage platform of this utility model;
[0018] Figure 3 This is a schematic diagram of the clamping platform of this utility model and related components;
[0019] Figure 4 This is a schematic diagram of the buffer pad and related structures of this utility model.
[0020] In the picture:
[0021] 1. Base; 2. Electric cylinder; 3. Baffle; 4. Sliding tube; 5. Sliding rod; 6. Support frame; 7. Torsion spring; 8. Display platform; 9. Motor; 10. Lead screw; 11. Clamping platform; 12. Liquid storage tank; 13. Slide groove; 14. Piston; 15. Clamping column; 16. Hydraulic oil; 17. Base plate; 18. Buffer pad; 19. Knob. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1-4 A CNC bending angle adjustment device includes a base 1, an electric cylinder 2 fixedly connected to the top of the base 1, a baffle 3 fixedly connected to the output end of the electric cylinder 2, a sliding tube 4 fixedly connected to the top of the base 1, a sliding rod 5 slidably connected to the inner wall of the sliding tube 4, the inner circumference of the sliding tube 4 and the outer circumference of the sliding rod 5 being equal, a support frame 6 fixedly connected to the top of the base 1, a platform 8 rotatably connected to the surface of the support frame 6, a motor 9 fixedly connected to the top of the platform 8, two motors 9 being provided, and the two motors 9 being symmetrically distributed around the central axis of the base 1, a lead screw 10 fixedly connected to the output end of the motor 9, and four clamping platforms 11 slidably connected to the surface of the platform 8, with each pair of clamping platforms 11 forming a group, and the interior of each clamping platform 11 being open. A liquid storage tank 12 is provided, and a clamping platform 11 has a sliding groove 13 through the liquid storage tank 12. A piston 14 is slidably connected to the clamping platform 11 through the sliding groove 13. The inner side wall of the sliding groove 13 is adapted to the outer side wall of the piston 14. A clamping column 15 is fixedly connected to the side of the piston 14. The liquid storage tank 12 and the sliding groove 13 are filled with hydraulic oil 16. The electric cylinder 2 drives the baffle 3 to move to a suitable position to support the bent part. The motor 9 drives the lead screw 10 to rotate, causing the clamping platform 11 to move inward until the clamping column 15 contacts the object. At this time, the clamping column 15 is squeezed, which drives the corresponding piston 14 to move inward. The hydraulic oil 16 is thus compressed, which in turn pushes the clamping column 15, which is not squeezed, to move outward. When the contact surface is an irregular shape such as an arc surface, the bent part can still be clamped.
[0024] Reference Figure 4The top of the sliding rod 5 is fixedly connected to the baffle 3. The surface of the sliding rod 5 is marked with a scale. The position where the sliding rod 5 is connected to the baffle 3 is symmetrical to the position where the electric cylinder 2 is connected to the baffle 3. The sliding rod 5 moves with the baffle 3, so that the sliding rod 5 slides on the sliding tube 4, thereby adjusting the bending angle by using the scale on the sliding rod 5.
[0025] Reference Figure 2 A torsion spring 7 is fixedly connected to the side of the support frame 6. The other end of the torsion spring 7 is fixedly connected to the platform 8. After the material is removed from the platform 8, the platform 8 is no longer affected by external forces, so that the platform 8 rotates and resets under the action of the torsion spring 7.
[0026] Reference Figure 1 The surface of the lead screw 10 is threadedly connected to the clamp 11, and one end of the lead screw 10 is rotatably connected to the platform 8. The lead screw 10 consists of two threaded rods with opposite thread directions, so that the clamp 11 slides under the constraint of the rotation of the lead screw 10 and the platform 8, thereby contacting the material and fixing it.
[0027] Reference Figure 4 A base plate 17 is slidably connected to the top of the baffle 3. The protruding part at the bottom of the base plate 17 fits perfectly with the groove of the baffle 3. A buffer pad 18 is fixedly connected to the top of the base plate 17. The buffer pad 18 is mainly made of rubber and has a certain elasticity. The base plate 17 and the buffer pad 18 support the bent part, so that the base plate 17 can drive the buffer pad 18 to move, so that the buffer pad 18 can be quickly replaced when it ages and breaks.
[0028] Reference Figure 4 A knob 19 is rotatably connected to the side of the baffle 3. The surface of the knob 19 is in contact with the base plate 17. When the base plate 17 is installed in the baffle 3, the knob 19 is moved to adjust the knob so that the knob 19 is in contact with the base plate 17, thereby limiting the base plate 17 and preventing the base plate 17 from slipping.
[0029] Working principle: First, the material is placed on the platform 8. The motor 9 is started, and the lead screw 10 rotates. The lead screw 10 is threadedly connected to the clamping platform 11. Therefore, under the constraint of the rotation of the lead screw 10 and the platform 8, the clamping platform 11 slides along the surface of the platform 8 until it contacts the material. As the clamping platform 11 continues to move, the clamping column 15, which is compressed, drives the piston 14 to move inward. Since the reservoir 12 and the slide 13 are filled with hydraulic oil 16, the hydraulic oil 16 is compressed, thereby pushing the clamping column 15, which is not subjected to external force, to move outward, so that the clamping column 15 matches the bending part, and finally utilizes the material. The material is fixed in place by the clamping post 15 to prevent it from shaking when bent and to ensure the quality of the finished product. When the material is bent, it comes into contact with the buffer pad 18. The buffer pad 18 is made of rubber and can cushion the material to prevent damage. After the buffer pad 18 ages and is damaged after long-term use, it can be quickly pulled out and replaced by the base plate 17 and fixed by the knob 19 to avoid affecting the processing progress. In addition, the electric cylinder 2 pushes the baffle 3 to move. The bending angle is adjusted by the sliding rod 5 moving with the baffle 3 and the scale on the sliding rod 5. When the material is removed from the platform 8, the torsion spring 7 causes the platform 8 to rotate and return to its original position.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A numerical control bending angle adjusting device comprising a base (1), characterized in that, The upper surface of the base (1) is fixedly connected with an electric cylinder (2), the output end of the electric cylinder (2) is fixedly connected with a baffle (3), the upper surface of the base (1) is fixedly connected with a sliding pipe (4), the inner wall of the sliding pipe (4) is slidably connected with a sliding rod (5), the upper surface of the base (1) is fixedly connected with a support frame (6), the surface of the support frame (6) is rotatably connected with a placing table (8), the upper surface of the placing table (8) is fixedly connected with a motor (9), the output end of the motor (9) is fixedly connected with a lead screw (10), the surface of the placing table (8) is slidably connected with a clamping table (11), the inside of the clamping table (11) is provided with a liquid storage groove (12), the clamping table (11) is provided with a sliding groove (13) through the liquid storage groove (12), the clamping table (11) is slidably connected with a piston (14) through the sliding groove (13), the side surface of the piston (14) is fixedly connected with a clamping column (15), the inside of the liquid storage groove (12) and the sliding groove (13) is filled with hydraulic oil (16).
2. The numerical control bending angle adjusting device according to claim 1, wherein The top end of the sliding rod (5) is fixedly connected with the baffle (3), and the surface of the sliding rod (5) is provided with a scale.
3. The numerical control bending angle adjusting device according to claim 1, wherein The side surface of the support frame (6) is fixedly connected with a torsion spring (7), and the other end of the torsion spring (7) is fixedly connected with the placing table (8).
4. The numerical control bending angle adjusting device according to claim 1, wherein The surface of the lead screw (10) is threadedly connected with the clamping table (11), and the other end of the lead screw (10) is rotatably connected with the placing table (8).
5. The numerical control bending angle adjusting device according to claim 1, wherein The upper surface of the baffle (3) is slidably connected with a bottom plate (17), and the upper surface of the bottom plate (17) is fixedly connected with a buffer pad (18).
6. The numerical control bending angle adjusting device according to claim 5, wherein The side surface of the baffle (3) is rotatably connected with a knob (19), and the surface of the knob (19) is attached to the bottom plate (17).
Citation Information
Patent Citations
Angle adjusting mechanism of numerical control plate bending machine
CN219985965U