Cutting device for numerical control bending machine

By designing a cutting device for a CNC bending machine, the problems of cutting tool wear and chip splashing were solved, enabling rapid tool replacement and effective chip blocking and dust removal, thereby improving processing efficiency and safety.

CN223917230UActive Publication Date: 2026-02-17ZHANGJIAGANG YAOTAI CNC MACHINERY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520604682.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-17
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

During the cutting process after bending metal pipes, the cutting tools of CNC bending machines wear out severely and are not easy to replace quickly. Furthermore, the flying debris generated during the cutting process affects worker safety and is difficult to effectively remove dust.

Method used

A cutting device for a CNC bending machine was designed, comprising a support frame, a bending unit, a cutting unit, a protective unit, and a dust removal unit. The cutting unit achieves rapid tool change through a combination of a threaded rod, a motor, and a cutting disc. The protective unit uses a baffle box to prevent debris from splashing, and the dust removal unit achieves effective dust removal through a fan and a filter screen.

Benefits of technology

It enables quick replacement of cutting tools, reduces debris splashing, improves worker safety, and effectively removes dust during the cutting process, thereby improving processing efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cutting device for a numerical control bending machine, which relates to the technical field of cutting of the numerical control bending machine, comprises a support frame, and is characterized in that a bending unit is arranged on the inner side of the support frame, a cutting unit is arranged in the bending unit, a protection unit is arranged on one side of the cutting unit, and the protection unit is arranged on the other side of the cutting unit. A dust removal unit is arranged on one side of the bending unit, the cutting unit comprises a second threaded rod, the second threaded rod is arranged in the bending unit, the inner side of the second threaded rod is connected to a mounting block in a threaded mode, a second motor is fixedly connected to the interior of the mounting block, and a cutting piece is slidably connected to the inner side of the output end of the second motor. Through the arrangement of the second threaded rod, the mounting block, the second motor, the cutting blade, the T-shaped rod and the first spring, the effect of conveniently cutting a bent metal pipe is achieved, and meanwhile, the effect of conveniently and rapidly disassembling and replacing the cutting blade after long-time use is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of CNC bending machine cutting technology, specifically to a cutting device for a CNC bending machine. Background Technology

[0002] A CNC bending machine is a precision device that integrates modern CNC technology and traditional mechanical manufacturing technology. It is mainly used for bending metal pipes. The working principle of a CNC bending machine is based on the coordinated operation of a CNC system, a servo drive system, and a mechanical transmission system. During the processing, the CNC system issues instructions according to a preset program, and the servo drive system receives the instructions and drives the corresponding actuators (such as bending dies, clamping devices, etc.) to perform precise bending actions.

[0003] In manufacturing and handicrafts, cutting refers to the process of dividing materials (such as metal, wood, plastic, etc.) into desired shapes and sizes using knives, lasers, waterjet cutters, or other tools. This cutting method is widely used in many fields, including metalworking, furniture making, architecture, and art creation.

[0004] Currently, during the bending process of metal pipes, it is necessary to cut the bent metal pipes. However, the cutting tools wear out after long-term use, making it inconvenient to quickly replace the tools. Therefore, a cutting device for CNC bending machines is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a cutting device for a CNC bending machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A cutting device for a CNC bending machine includes a support frame, characterized in that: a bending unit is provided on the inner side of the support frame, a cutting unit is provided inside the bending unit, a protective unit is provided on one side of the cutting unit, and a dust removal unit is provided on one side of the bending unit.

[0008] The cutting unit includes a second threaded rod, which is disposed inside the bending unit. The inner thread of the second threaded rod is threadedly connected to a mounting block. A second motor is fixedly connected inside the mounting block. A cutting blade is slidably connected to the inner side of the output end of the second motor. A T-shaped rod is disposed through the inside of the cutting blade. One end of the T-shaped rod is slidably connected to the inside of the output end of the second motor. A first spring is sleeved on the outer side of the T-shaped rod. One end of the first spring is fixedly connected to the inside of the cutting blade.

[0009] A further improvement of the present invention is that the bending unit includes a mounting plate, which is fixedly connected to the inner side of the support frame. A motor is fixedly connected to one side of the mounting plate, and a guide wheel is fixedly sleeved at the output end of the motor.

[0010] By adopting the above technical solution, the installation of the mounting plate, motor, and guide wheel facilitates the guiding effect of the bending process of metal pipes.

[0011] A further improvement of this utility model is that: a threaded rod is rotatably connected inside the mounting plate, a buckle is provided inside the threaded rod, a forming wheel is provided inside the threaded rod, and the two sides of the forming wheel are slidably connected inside the mounting plate.

[0012] By adopting the above technical solution, the setting of threaded rod, buckle and forming wheel makes it easy to control and adjust the bending degree of metal pipe.

[0013] A further improvement of the present invention is that the protective unit includes a baffle box, the baffle box is disposed on the outside of the cutting blade, the inner top surface of the baffle box is fixedly connected to a second spring, and the inside of the baffle box is rotatably connected to the inner side of the threaded rod.

[0014] By adopting the above technical solution, the setting of the baffle box and spring two facilitates the blocking of flying debris generated during the cutting of bent metal pipes, thus preventing the flying debris from affecting the safety of workers.

[0015] A further improvement of this utility model is that one end of the second spring is fixedly connected to the top surface of the mounting block, and a rubber block is fixedly connected to the bottom surface of the baffle box.

[0016] By employing the above technical solution, the rubber blocks reduce damage to the surface of the metal pipes when in contact with them.

[0017] A further improvement of the present invention is that the dust removal unit includes a processing box, which is fixedly connected to one side of the mounting plate, and a filter screen is slidably connected inside the processing box.

[0018] By adopting the above technical solution, a filter screen is installed inside the treatment box, which facilitates the filtration of fine dust and makes it easy for workers to clean the filter screen.

[0019] A further improvement of this utility model is that: a fan is fitted inside the processing box, a dust conveying pipe is fitted inside the processing box, and a dust suction nozzle is fitted at one end of the dust conveying pipe.

[0020] By adopting the above technical solution, the installation of a fan, dust conveying pipe, and dust suction nozzle achieves the effect of easily removing dust from the fine debris generated during cutting.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] This utility model provides a cutting device for a CNC bending machine. By setting up a threaded rod, a mounting block, a motor, a cutting blade, a T-shaped rod, and a spring, it achieves the effect of facilitating the cutting of bent metal pipes. At the same time, it facilitates the quick disassembly and replacement of the cutting blade after long-term use. The setting of the mounting plate, motor, and guide wheel facilitates the guiding effect of the bending process of metal pipes.

[0023] This utility model provides a cutting device for a CNC bending machine. The design of the baffle box and spring 2 effectively blocks the flying debris generated during the cutting of bent metal pipes, preventing the flying debris from affecting worker safety. The filter screen installed inside the processing box effectively filters the fine dust that is sucked in, and also facilitates worker cleaning of the filter screen. The design of the fan, dust conveying pipe and dust suction nozzle effectively removes the fine debris generated during cutting. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the bending unit of this utility model;

[0026] Figure 3 This is an exploded view of part of the structure of the cutting unit of this utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the protective unit of this utility model;

[0028] Figure 5 This is an exploded structural diagram of the dust removal unit of this utility model.

[0029] In the diagram: 1. Support frame; 2. Bending unit; 21. Mounting plate; 22. Motor 1; 23. Guide wheel; 24. Threaded rod 1; 25. Buckle; 26. Forming wheel; 3. Cutting unit; 31. Threaded rod 2; 32. Mounting block; 33. Motor 2; 34. Cutting disc; 35. T-shaped rod; 36. Spring 1; 4. Protective unit; 41. Material retainer box; 42. Spring 2; 43. Rubber block; 5. Dust removal unit; 51. Processing box; 52. Filter screen; 53. Fan; 54. Dust conveying pipe; 55. Dust suction nozzle. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to embodiments: Example

[0031] like Figure 1-5 As shown, this utility model provides a cutting device for a CNC bending machine, including a support frame 1. A bending unit 2 is arranged inside the support frame 1, and a cutting unit 3 is arranged inside the bending unit 2. A protective unit 4 is arranged on one side of the cutting unit 3, and a dust removal unit 5 is arranged on one side of the bending unit 2. The cutting unit 3 includes a threaded rod 31, which is arranged inside the bending unit 2. The inner thread of the threaded rod 31 is threadedly connected to a mounting block 32. A motor 33 is fixedly connected inside the mounting block 32. A cutting blade 34 is slidably connected to the inner side of the output end of the motor 33. A T-shaped rod 35 is inserted through the cutting blade 34. One end of the T-shaped rod 35 is slidably connected to the inner side of the output end of the motor 33. A spring 36 is sleeved on the outer side of the T-shaped rod 35, and one end of the spring 36 is fixedly connected to the inside of the cutting blade 34. The protective unit 4 includes a baffle box 41. 41 is set on the outside of the cutting blade 34. The inner top surface of the baffle box 41 is fixedly connected to the second spring 42. The inside of the baffle box 41 is rotatably connected to the inside of the second threaded rod 31. One end of the second spring 42 is fixedly connected to the top surface of the mounting block 32. The bottom surface of the baffle box 41 is fixedly connected to the rubber block 43. After bending is completed, the second threaded rod 31 is controlled to drive the mounting block 32 to move downward. Then the rubber block 43 contacts one side of the metal pipe, and at the same time, the second spring 42 is driven to extend. At the same time, the second motor 33 is controlled to drive the cutting blade 34 to rotate, and at the same time, the cutting blade 34 contacts the metal pipe, and then cuts the bent metal pipe. The metal chips generated by cutting are blocked by the baffle box 41 to reduce the splashing of metal chips. At the same time, after long-term use, the T-shaped rod 35 is pulled out from the inside of the second motor 33, and the cutting blade 34 can be quickly disassembled and replaced. Example

[0032] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the bending unit 2 includes a mounting plate 21, which is fixedly connected to the inner side of the support frame 1. A motor 22 is fixedly connected to one side of the mounting plate 21, and a guide wheel 23 is fixedly sleeved at the output end of the motor 22. A threaded rod 24 is rotatably connected inside the mounting plate 21, and a buckle 25 is provided inside the threaded rod 24. A forming wheel 26 is provided inside the threaded rod 24, and both sides of the forming wheel 26 are slidably connected inside the mounting plate 21. By placing the metal pipe to be bent on one side of the guide wheel 23, the threaded rod 24 is controlled to drive the forming wheel 26 to move, and the forming wheel 26 contacts one side of the metal pipe. The buckle 25 is then controlled to clamp the threaded rod 24, and the motor 22 is controlled to drive the guide wheel 23 to rotate, while the metal pipe moves under the limit of the guide wheel 23, and the forming wheel 26 contacts the metal pipe and performs bending. Example

[0033] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the dust removal unit 5 includes a processing box 51, which is fixedly connected to one side of the mounting plate 21. A filter screen 52 is slidably connected inside the processing box 51. A fan 53 is sleeved inside the processing box 51, and a dust conveying pipe 54 is sleeved inside the processing box 51. A suction nozzle 55 is sleeved at one end of the dust conveying pipe 54. At the same time, the fan 53 is controlled to suck in the fine debris generated by cutting through the suction nozzle 55 at one end of the dust conveying pipe 54, and then transport it to the inside of the processing box 51. The fine debris sucked in is filtered through the filter screen 52, and the worker can remove the filter screen 52 for cleaning.

[0034] The working principle of the cutting device of this CNC bending machine will be explained in detail below.

[0035] like Figure 1-5As shown, by placing the metal tube to be bent on one side of the guide wheel 23, the threaded rod 24 is controlled to drive the forming wheel 26 to move, and the forming wheel 26 contacts one side of the metal tube. The buckle 25 then clamps the threaded rod 24, and the motor 22 drives the guide wheel 23 to rotate, simultaneously moving the metal tube within the limit of the guide wheel 23, while the forming wheel 26 contacts the metal tube and performs bending. After bending, the threaded rod 31 is controlled to drive the mounting block 32 downwards, and the rubber block 43 contacts one side of the metal tube, simultaneously extending the spring 42. Motor 2 33 drives the cutting blade 34 to rotate, and at the same time, the cutting blade 34 comes into contact with the metal pipe, thereby cutting the bent metal pipe. The metal chips generated during cutting are blocked by the baffle box 41 to reduce the splashing of metal chips. At the same time, after long-term use, the T-shaped rod 35 is pulled out from inside the motor 2 33, and the cutting blade 34 can be quickly disassembled and replaced. Simultaneously, the fan 53 is controlled to suck in the fine chips generated during cutting through the dust suction nozzle 55 at one end of the dust conveying pipe 54, and then transport it into the processing box 51. The fine chips are filtered through the filter screen 52, and the worker can remove the filter screen 52 for cleaning.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A cutting device for a CNC bending machine, comprising a support frame (1), characterized in that: The support frame (1) is provided with a bending unit (2) on its inner side, a cutting unit (3) is provided inside the bending unit (2), a protective unit (4) is provided on one side of the cutting unit (3), and a dust removal unit (5) is provided on one side of the bending unit (2). The cutting unit (3) includes a threaded rod (31), which is located inside the bending unit (2). The inner thread of the threaded rod (31) is connected to the mounting block (32). The mounting block (32) is fixedly connected to a motor (33). The output end of the motor (33) is slidably connected to a cutting blade (34). A T-shaped rod (35) is provided through the inside of the cutting blade (34). One end of the T-shaped rod (35) is slidably connected to the inside of the output end of the motor (33). A spring (36) is sleeved on the outside of the T-shaped rod (35). One end of the spring (36) is fixedly connected to the inside of the cutting blade (34).

2. The cutting device for a CNC bending machine according to claim 1, characterized in that: The bending unit (2) includes a mounting plate (21), which is fixedly connected to the inner side of the support frame (1). A motor (22) is fixedly connected to one side of the mounting plate (21), and a guide wheel (23) is fixedly sleeved on the output end of the motor (22).

3. The cutting device for a CNC bending machine according to claim 2, characterized in that: The mounting plate (21) is rotatably connected to a threaded rod (24), and the threaded rod (24) is provided with a buckle (25). The threaded rod (24) is provided with a forming wheel (26), and the two sides of the forming wheel (26) are slidably connected to the inside of the mounting plate (21).

4. The cutting device for a CNC bending machine according to claim 1, characterized in that: The protective unit (4) includes a baffle box (41), which is located on the outside of the cutting blade (34). A spring (42) is fixedly connected to the top surface of the inner side of the baffle box (41), and the inside of the baffle box (41) is rotatably connected to the inside of the threaded rod (31).

5. A cutting device for a CNC bending machine according to claim 4, characterized in that: One end of the second spring (42) is fixedly connected to the top surface of the mounting block (32), and a rubber block (43) is fixedly connected to the bottom surface of the baffle box (41).

6. The cutting device for a CNC bending machine according to claim 1, characterized in that: The dust removal unit (5) includes a processing box (51), which is fixedly connected to one side of the mounting plate (21), and a filter screen (52) is slidably connected inside the processing box (51).

7. A cutting device for a CNC bending machine according to claim 6, characterized in that: A fan (53) is fitted inside the processing box (51), and a dust conveying pipe (54) is fitted inside the processing box (51). A dust suction nozzle (55) is fitted at one end of the dust conveying pipe (54).