A CNC bending device for sheet metal
By designing a CNC bending device for metal sheet metal, precise bending of metal sheet metal is achieved by using an extrusion drive motor and a distance measuring system. This solves the problems of low precision and poor adaptability of traditional equipment, and improves processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOLASER TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional sheet metal bending equipment suffers from low processing precision, insufficient efficiency, poor adaptability, and inability to precisely adjust the bending angle.
A CNC bending device for sheet metal was designed. It uses an extrusion drive motor to control the telescopic extrusion rod to adjust the height of the extrusion plate. Combined with the support of a fixed support frame and a movable support frame, the device achieves angle adjustment and accuracy detection by rotating and adjusting the threaded rod and the ranging transmitter. The detection data is displayed on the spacing display by infrared transmission.
It improves the flexibility and precision of metal sheet bending, enabling precise bending operations at different angles and enhancing processing efficiency and accuracy.
Smart Images

Figure CN224272810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal sheet bending technology, and in particular to a CNC bending device for metal sheet. Background Technology
[0002] Sheet metal parts are manufactured through processes such as filament power winding, laser cutting, heavy-duty machining, metal bonding, metal drawing, plasma cutting, precision welding, roll forming, sheet metal bending, die forging, and waterjet cutting. Sheet metal processing is a comprehensive cold working process for thin metal sheets, including shearing, punching / cutting / combined cutting, bending, welding, riveting, splicing, and forming. Its significant characteristic is that the thickness of the same part is consistent. Traditional sheet metal bending mainly relies on manual operation or mechanical bending machines, which suffers from low processing accuracy, insufficient efficiency, and poor adaptability. With the development of CNC technology, CNC bending devices for sheet metal have gradually become the industry mainstream. However, traditional equipment cannot precisely adjust the bending angle, so we have redesigned a CNC bending device for sheet metal. Utility Model Content
[0003] The purpose of this utility model is to provide a CNC bending device for sheet metal.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a CNC bending device for metal sheet metal, comprising a metal sheet metal bending machine, wherein an extrusion drive motor is fixedly installed on one side top of the metal sheet metal bending machine, a telescopic extrusion rod is telescopically connected to one side bottom surface of the extrusion drive motor, a limit plate is fixedly connected to one side bottom surface of the telescopic extrusion rod, an extrusion plate is fixedly connected to one side bottom surface of the limit plate, a fixed support frame is fixedly installed on the inner bottom surface of the metal sheet metal bending machine, a sliding limit rail is fixedly installed on the inner surface of the metal sheet metal bending machine near the fixed support frame, a movable support frame is movably connected to one side top surface of the sliding limit rail, a sliding limit groove is formed on one side bottom surface of the movable support frame, a connecting bearing plate is fixedly connected to one side top surface of the movable support frame, a rotating adjusting threaded rod is rotatably connected to one side top surface of the connecting bearing plate, a rotating disk is fixedly connected to one side top of the rotating adjusting threaded rod, and a rotating handrail is fixedly installed on one side surface of the rotating disk.
[0005] Preferably, a limiting mounting plate is fixedly installed on the inner bottom edge of one side of the metal sheet bending machine, the rotating adjusting threaded rod passes through the interior of the limiting mounting plate, the connection between the rotating adjusting threaded rod and the limiting mounting plate is a threaded connection, and the connection between the sliding limiting groove and the sliding limiting rail is a limiting sliding connection.
[0006] Preferably, the extrusion drive motor and the telescopic extrusion rod are connected by a drive connection, the fixed support frame and the movable support frame have the same specifications, the movable support frame and the metal sheet bending machine are connected by a sliding connection, the extrusion disc is located directly above the fixed support frame and the movable support frame, and there are several rotating handrails, which are distributed in a circle around the edge of one side surface of the rotating disc.
[0007] Preferably, a motor control box is fixedly installed on one top side of the extrusion drive motor, and a main controller is fixedly installed on one top front side of the metal sheet bending machine. A power control connection line is fixedly connected between the motor control box and the main controller. A data cable display is fixedly installed on one side of the front of the main controller, and a control setting panel is provided on one side of the front of the main controller.
[0008] Preferably, a ranging transmitter is fixedly installed on the outer wall of one top edge of the fixed support frame, a ranging transmitter head is fixedly installed on one side surface of the ranging transmitter, a ranging receiver is fixedly installed on the top edge of the movable support frame near the ranging transmitter, a ranging receiver trigger head is fixedly installed on the side of the ranging receiver near the ranging transmitter, and a spacing display is fixedly installed on the top edge of one side of the ranging receiver.
[0009] Preferably, the positions of the ranging transmitter and the ranging receiver are in one-to-one correspondence, the positions of the ranging receiver and the ranging receiver are at the same height, the positions of the ranging transmitter head and the ranging receiver trigger head are facing each other, and the connection relationship between the ranging transmitter head and the ranging receiver trigger head is an infrared receiving connection.
[0010] Compared with related technologies, the metal sheet CNC bending device provided by this utility model has the following advantages:
[0011] 1. This utility model provides a CNC bending device for metal sheet metal. The device places the metal sheet metal on a fixed support frame and a movable support frame. A pressing drive motor controls the extension and retraction of the telescopic pressing rod to adjust the height of the pressing disc. The pressing disc performs top-end pressing on the metal sheet metal. The bending operation is achieved with the support of the fixed and movable support frames. As needed, the rotating handle on the rotating disc can be rotated to adjust the position of the rotating adjusting threaded rod inside the limiting mounting plate, thereby adjusting the position of the movable support frame on the sliding limiting groove and adjusting the distance between the fixed and movable support frames. This allows for bending operations at different angles, improving the flexibility of metal sheet metal bending.
[0012] 2. This utility model provides a CNC bending device for metal sheet metal. By setting up a main controller to directly control the start and stop of the extrusion drive motor through the power control connection between the main controller and the motor control box, the height or depth of the extrusion plate is controlled, ensuring the bending accuracy of the metal sheet metal. A ranging transmitter and a ranging receiver are set on the same side of the fixed support frame and the movable support frame. The infrared transmission connection between the ranging transmitter and the ranging receiver trigger head detects the distance adjustment between the fixed and movable support frames. The detected data is directly displayed on the distance display, ensuring the accuracy of the distance adjustment between the fixed and movable support frames, thereby further improving the bending angle accuracy of the device for metal sheet metal. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a schematic diagram of the connection structure between the movable support frame and the rotating adjusting threaded rod of this utility model;
[0015] Figure 3 This is a schematic diagram of the overall front and side view structure of the device of this utility model;
[0016] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.
[0017] The following are the labeling elements in the diagram: 1. Metal sheet metal bending machine; 2. Extrusion drive motor; 3. Telescopic extrusion rod; 4. Limiting top plate; 5. Extrusion plate; 6. Fixed support frame; 7. Sliding limit rail; 8. Movable support frame; 9. Sliding limit groove; 10. Connecting bearing plate; 11. Rotating adjusting threaded rod; 12. Rotating plate; 13. Rotating handle; 14. Limiting mounting plate; 15. Motor control box; 16. Main controller; 17. Power control connection cable; 18. Data cable display; 19. Control setting panel; 20. Distance measuring transmitter; 21. Distance measuring transmitter head; 22. Distance measuring receiver; 23. Distance measuring receiver trigger head; 24. Spacing display. Detailed Implementation
[0018] Example 1:
[0019] Please see Figure 1-4This utility model provides a technical solution: a CNC bending device for metal sheet metal, including a metal sheet metal bending machine 1. A compression drive motor 2 is fixedly installed on one side of the top of the metal sheet metal bending machine 1. A telescopic compression rod 3 is telescopically connected to the bottom surface of one side of the compression drive motor 2. A limiting top plate 4 is fixedly connected to one side of the bottom of the telescopic compression rod 3. A compression plate 5 is fixedly connected to one side of the bottom surface of the limiting top plate 4. A fixed support frame 6 is fixedly installed on the inner bottom surface of the metal sheet metal bending machine 1. A sliding limiting rail 7 is fixedly installed on the inner surface of the metal sheet metal bending machine 1 near the fixed support frame 6. A movable support frame 8 is movably connected to one side of the top surface of the sliding limiting rail 7. A sliding limiting groove 9 is formed on one side of the bottom surface of the movable support frame 8. A connecting bearing plate 10 is fixedly connected to one side of the top surface of the movable support frame 8. A rotation adjustment thread is rotatably connected to one side of the top surface of the connecting bearing plate 10. A rotating disc 12 is fixedly connected to the top of one side of the rotating adjusting threaded rod 11. A rotating handrail 13 is fixedly installed on one side surface of the rotating disc 12. A limiting mounting plate 14 is fixedly installed on the bottom edge of one side of the metal sheet bending machine 1. The rotating adjusting threaded rod 11 passes through the interior of the limiting mounting plate 14. The rotating adjusting threaded rod 11 and the limiting mounting plate 14 are connected by a threaded connection. The sliding limiting groove 9 and the sliding limiting rail 7 are connected by a limiting sliding connection. The extrusion drive motor 2 and the telescopic extrusion rod 3 are connected by a drive connection. The fixed support frame 6 and the movable support frame 8 have the same specifications. The movable support frame 8 and the metal sheet bending machine 1 are connected by a sliding connection. The extrusion disc 5 is located directly above the fixed support frame 6 and the movable support frame 8. There are several rotating handrails 13, which are distributed in a circle on one side surface edge of the rotating disc 12.
[0020] In the implementation plan, the sheet metal is placed on a fixed support frame 6 and a movable support frame 8. The height of the extrusion disc 5 is adjusted by controlling the extension and retraction of the telescopic extrusion rod 3 via the extrusion drive motor 2. The extrusion disc 5 is used to perform top extrusion on the sheet metal. The bending operation is achieved with the support of the fixed support frame 6 and the movable support frame 8. As needed, the rotating handle 13 on the rotating disc 12 can be rotated directly to adjust the position of the rotating adjusting threaded rod 11 inside the limiting mounting disc 14. This allows the movable support frame 8 to slide on the sliding limiting groove 9, thereby adjusting the distance between the fixed support frame 6 and the movable support frame 8. This improves the flexibility of sheet metal bending for bending operations at different angles.
[0021] Example 2:
[0022] Please see Figure 1-4This utility model provides a technical solution: a CNC bending device for metal sheet metal, comprising a motor control box 15 fixedly installed on one side of the top of the extrusion drive motor 2, a main controller 16 fixedly installed on the top of the front side of one side of the metal sheet metal bending machine 1, a power control connection line 17 fixedly connected between the motor control box 15 and the main controller 16, a data cable display 18 fixedly installed on one side of the front of the main controller 16, a control setting panel 19 provided on one side of the front of the main controller 16, a ranging transmitter 20 fixedly installed on the outer wall of the top of one side of the fixed support frame 6, and a ranging transmitter 20 fixedly installed on one side surface of the ranging transmitter 20. The rangefinder 22 is fixedly installed on the top of the rangefinder 20 side of the rangefinder 21 and the movable support frame 8. The rangefinder 22 is fixedly installed on the side of the rangefinder 20. The rangefinder 22 is fixedly installed on the top surface of one side of the rangefinder 22. The positions of the rangefinder 20 and the rangefinder 22 correspond one-to-one. The rangefinder 22 and the rangefinder 23 are at the same height. The rangefinder 21 and the rangefinder 23 are facing each other. The rangefinder 21 and the rangefinder 23 are connected by an infrared receiving connection.
[0023] In the implementation plan, the main controller 16 controls the start and stop of the extrusion drive motor 2 directly through the power control connection line 17 between the main controller 16 and the motor control box 15, thereby controlling the height or extrusion depth of the extrusion disc 5 and ensuring the bending accuracy of the metal sheet. A ranging transmitter 20 and a ranging receiver 22 are set on the same side of the fixed support frame 6 and the movable support frame 8. The infrared transmission connection between the ranging transmitter head 21 and the ranging receiver trigger head 23 is used to detect the distance adjustment between the fixed support frame 6 and the movable support frame 8. The detected data is directly displayed on the distance display 24, ensuring the accuracy of the distance adjustment between the fixed support frame 6 and the movable support frame 8, thereby further improving the bending angle accuracy of the metal sheet by the device.
[0024] Working principle:
[0025] By placing the sheet metal on the fixed support frame 6 and the movable support frame 8, and controlling the extension and retraction of the telescopic extrusion rod 3 by the extrusion drive motor 2 to adjust the height of the extrusion plate 5, the extrusion plate 5 is used to perform top extrusion on the sheet metal. With the support of the fixed support frame 6 and the movable support frame 8, bending operations are achieved. According to actual needs, the rotating handle 13 on the rotating plate 12 can be directly rotated to adjust the position of the rotating adjusting threaded rod 11 inside the limiting mounting plate 14, thereby adjusting the position of the movable support frame 8 on the sliding limiting groove 9, thereby adjusting the distance between the fixed support frame 6 and the movable support frame 8. This allows for bending operations at different angles, improving the flexibility of sheet metal bending.
[0026] By setting the main controller 16 to directly control the start and stop of the extrusion drive motor 2 through the power control connection line 17 between the main controller 16 and the motor control box 15, the height or extrusion depth of the extrusion disc 5 is controlled, ensuring the bending accuracy of the metal sheet. A ranging transmitter 20 and a ranging receiver 22 are set on the same side of the fixed support frame 6 and the movable support frame 8. The infrared transmission connection between the ranging transmitter head 21 and the ranging receiver trigger head 23 is used to detect the distance adjustment between the fixed support frame 6 and the movable support frame 8. The detected data is directly displayed on the distance display 24, ensuring the accuracy of the distance adjustment between the fixed support frame 6 and the movable support frame 8, thereby further improving the bending angle accuracy of the metal sheet by the device.
Claims
1. A CNC bending device for sheet metal, comprising a sheet metal bending machine (1), wherein a pressing drive motor (2) is fixedly installed on one side of the top end of the sheet metal bending machine (1), characterized in that: A telescopic extrusion rod (3) is telescopically connected to one bottom surface of the extrusion drive motor (2). A limiting top plate (4) is fixedly connected to one bottom surface of the telescopic extrusion rod (3). An extrusion plate (5) is fixedly connected to one bottom surface of the limiting top plate (4). A fixed support frame (6) is fixedly installed on the inner bottom surface of the metal sheet bending machine (1). A sliding limiting rail (7) is fixedly installed on the inner surface of the metal sheet bending machine (1) near the fixed support frame (6). A movable support frame (8) is movably connected to one side of the top surface of the movable support frame (8). A sliding limit groove (9) is opened on one side of the bottom surface of the movable support frame (8). A connecting bearing disk (10) is fixedly connected to one side of the top surface of the movable support frame (8). A rotating adjusting threaded rod (11) is rotatably connected to one side of the top surface of the connecting bearing disk (10). A rotating disk (12) is fixedly connected to one side of the top of the rotating adjusting threaded rod (11). A rotating handrail (13) is fixedly installed on one side of the rotating disk (12).
2. The CNC bending device for sheet metal as described in claim 1, characterized in that, A limiting mounting plate (14) is fixedly installed on the inner bottom edge of one side of the metal sheet bending machine (1). The rotating adjusting threaded rod (11) passes through the interior of the limiting mounting plate (14). The connection between the rotating adjusting threaded rod (11) and the limiting mounting plate (14) is a threaded connection. The connection between the sliding limiting groove (9) and the sliding limiting rail (7) is a limiting sliding connection.
3. The CNC bending device for sheet metal as described in claim 1, characterized in that, The extrusion drive motor (2) and the telescopic extrusion rod (3) are connected by a drive connection. The fixed support frame (6) and the movable support frame (8) have the same specifications. The movable support frame (8) and the metal sheet bending machine (1) are connected by a sliding connection. The extrusion plate (5) is located directly above the fixed support frame (6) and the movable support frame (8). There are several rotating handrails (13), which are distributed in a circle on one side of the rotating plate (12).
4. The CNC bending device for sheet metal as described in claim 1, characterized in that, A motor control box (15) is fixedly installed on one side of the top of the extrusion drive motor (2), and a main controller (16) is fixedly installed on one side of the front top of the metal sheet bending machine (1). A power control connection line (17) is fixedly connected between the motor control box (15) and the main controller (16). A data cable display (18) is fixedly installed on one side of the front of the main controller (16), and a control setting panel (19) is provided on one side of the front of the main controller (16).
5. A CNC bending device for sheet metal as described in claim 1, characterized in that, A ranging transmitter (20) is fixedly installed on the outer wall of one top of the fixed support frame (6). A ranging transmitter head (21) is fixedly installed on one side surface of the ranging transmitter (20). A ranging receiver (22) is fixedly installed on the top of the movable support frame (8) near the ranging transmitter (20). A ranging receiver trigger head (23) is fixedly installed on the side of the ranging receiver (22) near the ranging transmitter (20). A spacing display (24) is fixedly installed on the top surface of one side of the ranging receiver (22).
6. A CNC bending device for sheet metal according to claim 5, characterized in that, The positions of the ranging transmitter (20) and the ranging receiver (22) correspond one-to-one. The positions of the ranging receiver (22) and the ranging receiver (23) are at the same height. The positions of the ranging transmitter (21) and the ranging receiver trigger (23) are facing each other. The connection relationship between the ranging transmitter (21) and the ranging receiver trigger (23) is an infrared receiving connection.