Numerical control automatic pipe bending machine

Abstract

The utility model discloses a numerical control automation pipe bender relates to pipe bender technical field, it is characterized by including: mounting panel, the bending assembly includes the bending die block, the bending die block fixedly connected symmetrical mounting rod, symmetrical mounting rod is fixedly connected mounting panel respectively, the square block of bending die block one side is provided with the guide hole, and the other side is provided with straight slot, the semicircle block of bending die block is provided with the bending groove, and the bending groove vertical intercommunication guide hole with straight slot, the feeding assembly includes three jaw chuck, and three jaw chuck with guide hole coaxial arrangement. The utility model wants to solve the technical problem to provide a numerical control automation pipe bender, through adopting feeding assembly, realizes the automatic feeding of pipe fitting, and is bent in specific position, realizes bending arc block movement through adopting hydraulic rod drive, realizes the automatic bending of pipe fitting.

Description

Technical Field

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

[0002] CNC pipe bending machines can perform winding bends on pipes with one or two bending radii in a cold state. They are widely used in the bending of various pipes and wires in industries such as automobiles and air conditioning. Pipe bending machines are mainly used for the plastic forming of pipes. Existing CNC pipe bending machines require manual assistance during operation.

[0003] Existing technology, such as a utility model of an automated CNC pipe bending machine (authorization announcement number CN217570329U), can clean dust adhering to the surface of pipes during bending, thus preventing dents from appearing on the surface of the pipes during the bending process.

[0004] Currently, there is a lack of CNC automated pipe bending machines that can automatically bend pipes at any angle without much human intervention, effectively improving production efficiency, reducing labor costs, and ensuring the stability and consistency of pipe bending quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a CNC automated pipe bending machine, which realizes automatic feeding of pipes by adopting a feeding component and bending them at specific positions. The bending arc block is driven by a hydraulic rod to realize the automatic bending of the pipes.

[0006] This utility model achieves its purpose through the following technical solution:

[0007] A CNC automated pipe bending machine, characterized in that it comprises: a mounting plate, serving as the basic support component of the entire CNC automated pipe bending machine, the mounting plate being made of high-strength alloy material, possessing good rigidity and stability. The mounting plate is provided with multiple mounting holes and positioning grooves for fixing key components such as the feed assembly, bending assembly, and bending power assembly, ensuring the stability and accuracy of the entire pipe bending machine during operation; a bending assembly, including a bending die block, the bending die block being fixedly connected to symmetrical mounting rods, the symmetrical mounting rods being respectively fixedly connected to the mounting plate, the square portion of the bending die block having a guide hole on one side and a straight groove on the other side, the semi-circular portion of the bending die block having a bending groove, the bending groove being vertically connected to the guide hole and the straight groove; the bending assembly is mounted on the mounting plate, the guide hole is used to guide the pipe material to ensure the accuracy of the bending process, and the bending groove is used to realize the bending operation of the pipe material. The feed assembly includes a three-jaw chuck, the three-jaw chuck being coaxially arranged with the guide hole. The three-jaw chuck is used to clamp the pipe, ensuring the stability and accuracy of the pipe during the feeding process. It is coaxially set with the guide hole, so that the pipe can smoothly pass through the guide hole into the bending groove for bending operation, further ensuring the accuracy and quality of bending.

[0008] As a further limitation of this technical solution, the mounting plate is fixedly connected to symmetrical tracks, the three-jaw chuck is mounted on a movable frame, and the movable frame is nested within the symmetrical tracks. The movable frame can move smoothly along the symmetrical tracks, thereby driving the three-jaw chuck and the pipe clamped by it to achieve precise feeding. This ensures the straightness and stability of the pipe during the feeding process, and through the precise guidance of the tracks, the pipe can accurately reach the bending position, perfectly matching the guide holes and bending grooves on the bending die block, thus ensuring high precision and high efficiency throughout the entire pipe bending process.

[0009] As a further limitation of this technical solution, the moving frame is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a gear, and the mounting plate is fixedly connected to a rack, with the gear meshing with the rack. Driven by the motor, the output shaft drives the gear to rotate. Since the gear and rack mesh with each other, the rotation of the gear is converted into linear motion of the moving frame along the rack direction, realizing precise movement of the moving frame. This, in turn, drives the three-jaw chuck and the clamped pipe to be accurately fed, providing reliable positional assurance for subsequent pipe bending operations.

[0010] As a further limitation of this technical solution, at least one of the track ends is equipped with a distance measuring sensor. The installation of the distance measuring sensor enables real-time monitoring of the moving frame's distance traveled on the track, ensuring the accuracy of pipe feeding and improving the automation level and processing precision of the entire pipe bending process.

[0011] As a further limitation of this technical solution, a bending power assembly is also included. The bending power assembly includes a rotating shaft, which is connected to the bending die block via a bearing. The rotating shaft is coaxially arranged with a semi-circular block of the bending die block. A power arm is fixedly connected to the rotating shaft, and a bending arc block is fixedly connected to the power arm. The power arm can drive the rotating shaft to rotate around its axis. Since the rotating shaft is coaxially arranged with the semi-circular block of the bending die block, and the rotating shaft is connected to the bending die block via a bearing, the rotation of the rotating shaft will synchronously drive the bending die block to rotate. The bending arc block moves together with the power arm. During the rotation of the bending die block, the bending arc block engages with the bending groove on the bending die block, thereby achieving precise bending of the pipe.

[0012] As a further limitation of this technical solution, the mounting plate is fixedly connected to a vertical shaft, the vertical shaft is rotatably connected to a hydraulic rod seat, the hydraulic rod seat is fixedly connected to a hydraulic rod, the piston rod of the hydraulic rod is fixedly connected to a mounting column, and the mounting column is rotatably connected to the power arm. When the hydraulic rod is working, its piston rod will perform linear extension and retraction motion, thereby pushing the mounting column fixedly connected to it to move. The mounting column is rotatably connected to the power arm, so the extension and retraction motion of the hydraulic rod can be converted into the swinging motion of the power arm, which in turn drives the rotating shaft to rotate, ultimately realizing the coordinated action of the bending die block and the bending arc block to complete the bending work of the pipe.

[0013] As a further limitation of this technical solution, the square portion of the bending die block is provided with a circumferential placement groove matching the bending arc block, and the semi-circular portion of the bending die block is provided with a vertical limiting groove matching the bending arc block. The vertical limiting groove vertically connects the two circumferential placement grooves. The vertical limiting groove limits the bending arc block. When the bending arc block is in the circumferential placement groove, the bending arc block is parallel to the square portion of the bending die block and tangent to the semi-circular portion.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are:

[0015] This invention converts the extension and retraction of a hydraulic rod into the swing of a power arm, which in turn drives the rotation of a shaft, thus realizing the movement of the bending arc block and making the pipe bending process more automated and precise. Simultaneously, the circumferential placement groove and vertical limiting groove on the bending die block effectively improve the stability and accuracy of the bending arc block during the bending process, thereby ensuring the quality of the pipe bending. This not only improves production efficiency but also reduces operational difficulty and labor intensity, demonstrating significant practicality and economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0017] Figure 2This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the bending component of this utility model. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the bending component of this utility model. Figure 2 .

[0020] Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0021] In the picture:

[0022] 1. Feeding assembly; 11. Distance sensor; 12. Moving frame; 13. Rail; 14. Three-jaw chuck; 15. Motor; 16. Rack; 17. Gear.

[0023] 2. Bending assembly; 21. Bending die block; 22. Mounting rod; 23. Guide hole; 24. Circumferential placement groove; 25. Vertical limiting groove; 26. Bending groove; 27. Straight groove.

[0024] 3. Bending power assembly; 31. Rotary shaft; 32. Bending arc block; 33. Power arm; 34. Mounting column; 35. Hydraulic rod; 36. Hydraulic rod seat; 37. Vertical shaft.

[0025] 4. Mounting plate. Detailed Implementation

[0026] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0027] Example 1: This utility model includes: a mounting plate 4, which serves as the basic support component of the entire CNC automated pipe bending machine. The mounting plate 4 is made of high-strength alloy material, possessing excellent rigidity and stability. The mounting plate 4 is provided with multiple mounting holes and positioning grooves for fixing key components such as the feed assembly 1, bending assembly 2, and bending power assembly 3, ensuring the stability and accuracy of the entire pipe bending machine during operation; the bending assembly 2 includes a bending die block 21, which is fixedly connected to symmetrical mounting rods 22, which are respectively fixedly connected to the mounting plate 4. The square portion of the bending die block 21 has a guide hole 23 on one side and a straight groove 27 on the other side. The semi-circular portion of the bending die block 21 has a bending groove 26, which vertically connects to the guide hole 23 and the straight groove 27; the bending assembly 2 is mounted on the mounting plate 4. The guide hole 23 guides the pipe material, ensuring the accuracy of the bending process, and the bending groove 26 enables the bending operation of the pipe material. The feeding assembly 1 includes a three-jaw chuck 14, which is coaxially arranged with the guide hole 23. The three-jaw chuck 14 is used to clamp the pipe, ensuring the stability and accuracy of the pipe during the feeding process. Its coaxial arrangement with the guide hole 23 allows the pipe to smoothly pass through the guide hole 23 into the bending groove 26 for bending operation, further ensuring the accuracy and quality of bending.

[0028] The mounting plate 4 is fixedly connected to the symmetrical rails 13, and the three-jaw chuck 14 is mounted on the movable frame 12, which is nested within the symmetrical rails 13. The movable frame 12 can move smoothly along the symmetrical rails 13, thereby driving the three-jaw chuck 14 and the clamped pipe to achieve precise feeding. This ensures the straightness and stability of the pipe during the feeding process, and through the precise guidance of the rails 13, the pipe can accurately reach the bending position, perfectly matching the guide hole 23 and bending groove 26 on the bending die block 21, thus ensuring high precision and high efficiency of the entire pipe bending process.

[0029] The movable frame 12 is fixedly connected to the motor 15, and the output shaft of the motor 15 is fixedly connected to the gear 17. The mounting plate 4 is fixedly connected to the rack 16, and the gear 17 meshes with the rack 16. Driven by the motor 15, the output shaft drives the gear 17 to rotate. Since the gear 17 meshes with the rack 16, the rotation of the gear 17 is converted into linear motion of the movable frame 12 along the direction of the rack 16, realizing the precise movement of the movable frame 12. This, in turn, drives the three-jaw chuck 14 and the clamped pipe to be accurately fed, providing reliable positional assurance for subsequent pipe bending operations.

[0030] The system also includes a bending power assembly 3, which comprises a rotating shaft 31. The rotating shaft 31 is bearing-connected to the bending die block 21. The rotating shaft 31 is coaxially arranged with the semicircular block of the bending die block 21. The rotating shaft 31 is fixedly connected to a power arm 33, and the power arm 33 is fixedly connected to a bending arc block 32. The power arm 33 can drive the rotating shaft 31 to rotate around its axis. Since the rotating shaft 31 is coaxially arranged with the semicircular block of the bending die block 21 and the rotating shaft 31 is bearing-connected to the bending die block 21, the rotation of the rotating shaft 31 will synchronously drive the bending die block 21 to rotate. The bending arc block 32 moves together with the power arm 33. During the rotation of the bending die block 21, the bending arc block 32 cooperates with the bending groove 26 on the bending die block 21, thereby realizing the precise bending operation of the pipe.

[0031] The mounting plate 4 is fixedly connected to the vertical shaft 37, the vertical shaft 37 is rotatably connected to the hydraulic rod seat 36, the hydraulic rod seat 36 is fixedly connected to the hydraulic rod 35, the piston rod of the hydraulic rod 35 is fixedly connected to the mounting column 34, and the mounting column 34 is rotatably connected to the power arm 33. When the hydraulic rod 35 is working, its piston rod will perform linear extension and retraction motion, thereby pushing the mounting column 34 fixedly connected to it to move. The mounting column 34 is rotatably connected to the power arm 33, so the extension and retraction motion of the hydraulic rod 35 can be converted into the swing of the power arm 33, which in turn drives the rotating shaft 31 to rotate, ultimately realizing the coordinated action of the bending die block 21 and the bending arc block 32 to complete the bending work of the pipe.

[0032] The square portion of the bending die block 21 is provided with a circumferential placement groove 24 that matches the bending arc block 32, and the semi-circular portion of the bending die block 21 is provided with a vertical limiting groove 25 that matches the bending arc block 32. The vertical limiting groove 25 vertically connects the two circumferential placement grooves 24. The vertical limiting groove 25 limits the bending arc block 32. When the bending arc block 32 is in the circumferential placement groove 24, the bending arc block 32 is parallel to the square portion of the bending die block 21 and tangent to the semi-circular portion.

[0033] The workflow of this embodiment is as follows:

[0034] The pipe fitting is passed through the guide hole 23 and the arc groove on the bending block 32, and inserted into the three-jaw chuck 14. The three-jaw chuck 14 is operated to fix the pipe fitting. The control motor 15 rotates, driving the gear 17 to rotate. The gear 17 meshes with the gear 16, causing the gear 17 to move. The gear 17 drives the motor 15 to move, which in turn drives the moving frame 12 to move along the track 13. The moving frame 12 then drives the three-jaw chuck 14, which in turn moves the pipe fitting along the guide hole 23, allowing the pipe fitting to extend to a suitable length. The control hydraulic rod 35 extends, causing the mounting column 34 to swing. The mounting column 34 then drives the hydraulic rod 35 to swing, which in turn drives the hydraulic rod seat 36 to swing. The mounting column 34 then drives the power arm 33 to swing, which in turn drives the rotating shaft 31 to rotate. The power arm 33 then drives the bending block 32 to move within the vertical limiting groove 25. The bending block 32 engages with the bending groove 26 to bend the pipe fitting.

[0035] Example 2: This example further elaborates on Example 1, wherein at least one end of the track 13 is equipped with a distance measuring sensor 11. The distance measuring sensor 11 enables real-time monitoring of the moving frame 12's movement distance on the track 13, ensuring the accuracy of pipe feeding and improving the automation level and processing precision of the entire pipe bending process.

[0036] Example 3: This example is a further elaboration based on Example 1 or 2. An incremental encoder is installed on the bending die block 21 (its structure and working principle are well known to those skilled in the art and will not be described in detail here). The rotor 31 is fixedly connected to the input shaft of the encoder to realize the angle control of the bent pipe.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A CNC automated pipe bending machine, characterized in that, include: Mounting plate (4); A bending assembly (2) includes a bending die block (21), which is fixedly connected to symmetrical mounting rods (22). The symmetrical mounting rods (22) are respectively fixedly connected to the mounting plate (4). A guide hole (23) is provided on one side of the square part of the bending die block (21), and a straight groove (27) is provided on the other side. A bending groove (26) is provided on the semi-circular part of the bending die block (21), and the bending groove (26) is vertically connected to the guide hole (23) and the straight groove (27). The feed assembly (1) includes a three-jaw chuck (14) which is coaxially arranged with the guide hole (23).

2. The CNC automated pipe bending machine according to claim 1, characterized in that: The mounting plate (4) is fixedly connected to the symmetrical track (13), the three-jaw chuck (14) is mounted on the movable frame (12), and the movable frame (12) is nested within the symmetrical track (13).

3. The CNC automated pipe bending machine according to claim 2, characterized in that: The movable frame (12) is fixedly connected to the motor (15), the output shaft of the motor (15) is fixedly connected to the gear (17), the mounting plate (4) is fixedly connected to the rack (16), and the gear (17) meshes with the rack (16).

4. A CNC automated pipe bending machine according to claim 2, characterized in that: At least one end of the track (13) is equipped with a distance sensor (11).

5. A CNC automated pipe bending machine according to claim 1, characterized in that: It also includes a bending power assembly (3), which includes a rotating shaft (31), the rotating shaft (31) being connected to the bending die block (21) by a bearing, the rotating shaft (31) being coaxially arranged with the semicircular block of the bending die block (21), the rotating shaft (31) being fixedly connected to a power arm (33), and the power arm (33) being fixedly connected to a bending arc block (32).

6. A CNC automated pipe bending machine according to claim 5, characterized in that: The mounting plate (4) is fixedly connected to the vertical shaft (37), the vertical shaft (37) is rotatably connected to the hydraulic rod seat (36), the hydraulic rod seat (36) is fixedly connected to the hydraulic rod (35), the piston rod of the hydraulic rod (35) is fixedly connected to the mounting column (34), and the mounting column (34) is rotatably connected to the power arm (33).

7. A CNC automated pipe bending machine according to claim 5, characterized in that: The square part of the bending die block (21) is provided with a circumferential placement groove (24) that matches the bending arc block (32), and the semi-circular part of the bending die block (21) is provided with a vertical limiting groove (25) that matches the bending arc block (32). The vertical limiting groove (25) is vertically connected to the two circumferential placement grooves (24).

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