A pipe bending machine to prevent pipe misalignment

Abstract

This utility model relates to the field of pipe bending machine technology, and discloses a pipe bending machine that avoids pipe misalignment. It includes a working plate and a movable plate. A clamping mechanism is fixedly connected to one side of the movable plate, and a pushing mechanism is provided between the movable plate and the working plate. The clamping mechanism includes a clamping frame, with a fixing opening on one side. Fixing grooves are formed on the inner walls of both the front and rear ends of the fixing opening. Return springs are fixedly connected to the inner walls of opposite sides of the two fixing grooves. In this utility model, the clamping mechanism, through the return springs and threaded adjustment structure, tightly fits pipe fittings of different diameters, providing stable clamping force, preventing pipe slippage and misalignment, improving bending accuracy and yield, while enhancing equipment adaptability and reducing costs. The pushing mechanism utilizes a second drive motor linked with a cam to provide a stable and controllable pushing force to the movable plate. Combined with a limiting structure, it ensures uniform bending of the pipe fitting and precisely limits the movement trajectory of the movable plate.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending machine technology, and in particular to a pipe bending machine that avoids pipe misalignment. Background Technology

[0002] A pipe bending machine is a specialized piece of machinery used to bend metal pipes. By using specific dies and mechanical force, it can bend metal pipes into the angles and curvatures required by the user to meet the needs of various industrial and everyday applications. Pipe bending machines can precisely control the bending angle, curvature, and length, ensuring highly consistent results each time, which is especially important for projects requiring a large quantity of identical or similar pipe fittings.

[0003] Existing pipe bending machines lack an adjustable and stable clamping structure, making it difficult to tightly fit pipe fittings of different diameters. This causes the pipe fittings to easily slip and shift during bending, affecting processing accuracy. At the same time, the power output of the pushing mechanism is uneven and lacks precise guidance, making the pipe fittings subject to unstable force and prone to wrinkling and deformation.

[0004] Therefore, those skilled in the art have provided a pipe bending machine that avoids pipe misalignment in order to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pipe bending machine that prevents pipe fittings from shifting. The clamping mechanism uses a return spring and a threaded adjustment structure to tightly fit pipe fittings of different diameters, providing stable clamping force, preventing pipe fittings from sliding and shifting, improving bending accuracy and pass rate, while also enhancing equipment adaptability and reducing costs. The pushing mechanism uses a second drive motor linked with a cam to provide a stable and controllable pushing force to the moving plate, and the limiting structure ensures that the pipe fittings are bent at a uniform speed, precisely limiting the movement trajectory of the moving plate.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pipe bending machine for preventing pipe misalignment includes a working plate and a movable plate. A clamping mechanism is fixedly connected to one side of the movable plate, and a pushing mechanism is provided between the movable plate and the working plate.

[0008] The clamping mechanism includes a clamping frame, a fixing opening on one side of the clamping frame, fixing grooves on the inner walls of the front and rear ends of the fixing opening, a return spring fixedly connected to the inner wall of the opposite side of the two fixing grooves, a movable seat fixedly connected to the opposite end of the two return springs, a connecting column fixedly connected to the opposite side of the two movable seats, and a clamping plate fixedly connected to the opposite side of the two connecting columns.

[0009] The above technical solution involves placing the pipe fitting inside the fixed opening. The pipe fitting pushes the clamping plate, which in turn drives the moving seat to squeeze the reset spring, causing the clamping plate to fit tightly against the pipe fitting.

[0010] Furthermore, the pushing mechanism includes a second drive motor, two limit sliders and two limit bars. A cam is provided on one side of the upper end face of the working plate. A rotating column is fixedly connected to one side of the upper end face of the cam. A rotating seat is fixedly connected to one side of the movable plate. A connecting sleeve rod is movably sleeved on the outer wall of the rotating column. The other end of the connecting sleeve rod is movably sleeved in the rotating seat.

[0011] With the above technical solution, the rotating column moves with the rotating cam, and pushes the rotating seat through the connecting sleeve rod, thereby driving the movable plate to move.

[0012] Furthermore, the two limiting strips are respectively fixedly connected to the front and rear sides of the upper end face of the working plate, and limiting grooves are opened on the opposite sides of the two limiting strips. The two limiting sliders are respectively fixedly connected to the front and rear end faces of the movable plate, and the limiting sliders are slidably disposed in the limiting grooves.

[0013] The above technical solution guides and limits the movement of the movable plate by sliding the limiting slider in the limiting groove, ensuring that the movable plate moves stably along a straight line and realizing the smooth pushing of the pipe fitting.

[0014] Furthermore, the second drive motor is fixedly connected to one side of the lower end face of the work plate, and the output end of the second drive motor passes through the work plate and is fixedly connected to the cam.

[0015] The above technical solution allows for the control and transmission of the cam via a second drive motor.

[0016] Furthermore, auxiliary holes are provided on the inner walls of the opposite sides of the two fixed slots, threaded rods are fixedly connected to the opposite sides of the two movable seats, threaded rings are threadedly sleeved on the outer walls of the two threaded rods, threaded collars are fixedly connected to the opposite sides of the two threaded rings, and annular threaded grooves are provided on the front and rear end faces of the clamping frame, and the threaded collars are threadedly sleeved in the annular threaded grooves.

[0017] The above technical solution achieves a firm clamping of pipe fittings of different diameters by rotating the threaded ring and driving the threaded collar to fit inside the annular threaded groove.

[0018] Furthermore, a fixing frame is fixedly connected to the middle of the upper end face of the working plate at both the front and rear positions, and multiple guide wheels are rotatably sleeved inside the fixing frame;

[0019] The above technical solution, through the use of guide wheels, can achieve the purpose of restricting the movement of the pipeline.

[0020] Furthermore, a No. 1 drive motor is fixedly connected to one side of the lower end face of the work plate, a connecting strip is fixedly connected to the output end of the No. 1 drive motor, a bending column is fixedly connected to one side of the upper end face of the connecting strip, an annular groove is opened on one side of the upper end face of the work plate, the bending column is movably arranged in the annular groove, and a fixing column is fixedly connected to one side of the upper end face of the work plate.

[0021] Through the above technical solution, the No. 1 drive motor is started, which drives the bending column on the connecting strip to make a circular motion in the annular groove, and forms a bending moment in cooperation with the fixed column.

[0022] Furthermore, support columns are fixedly connected to the lower end face of the work plate near the four corners, and anti-slip pads are fixedly connected to the lower ends of the multiple support columns.

[0023] The above technical solution, through the setting of support columns and anti-slip pads, can achieve the purpose of limiting and supporting the device.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model proposes a pipe bending machine that avoids pipe misalignment. The clamping mechanism, through an adjustable clamping plate design, can adaptively adjust according to the pipe size, ensuring that pipes of different thicknesses can be tightly clamped. During the bending process, the stable clamping force can effectively prevent the pipe from sliding or shifting due to force, greatly improving the forming accuracy and pass rate of the bent pipe. At the same time, its flexible adjustment method allows the equipment to adapt to the processing needs of various specifications of pipes, significantly improving the versatility and application range of the equipment, and reducing the cost of replacing equipment for enterprises.

[0026] 2. The present invention proposes a pipe bending machine to avoid pipe misalignment. The pushing mechanism adopts a linkage between a No. 2 drive motor and a cam, which can provide a continuous, stable and controllable pushing force to the moving plate. During the pipe bending process, this stable pushing force can ensure that the pipe is bent at a uniform speed and force, effectively avoiding problems such as pipe deformation and wrinkling caused by unstable pushing force, and ensuring that the shape and size of the bent pipe meet the design requirements.

[0027] 3. The present invention proposes a pipe bending machine to avoid pipe displacement. The clamping mechanism uses a return spring and a threaded adjustment structure to closely fit pipes of different diameters, providing stable clamping force, preventing pipe slippage and displacement, improving bending accuracy and pass rate, while enhancing equipment adaptability and reducing costs. The pushing mechanism uses a second drive motor linked with a cam to provide a stable and controllable pushing force to the moving plate. Combined with the limiting structure, it ensures that the pipe is bent at a uniform speed and accurately limits the movement trajectory of the moving plate. Attached Figure Description

[0028] Figure 1 This is an isometric view of a pipe bending machine for preventing pipe misalignment proposed in this utility model;

[0029] Figure 2 This is a top sectional view of a pipe bending machine that avoids pipe misalignment according to the present invention.

[0030] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A;

[0031] Figure 4 This is a front view schematic diagram of a pipe bending machine that avoids pipe misalignment according to the present invention;

[0032] Figure 5 This is an axial side view of the connection between the threaded ring and the threaded collar of a pipe bending machine that prevents pipe misalignment according to the present invention.

[0033] Legend:

[0034] 1. Working plate; 2. Movable plate; 3. Fixed frame; 4. Guide wheel; 5. Fixed column; 6. Drive motor No. 1; 7. Connecting strip; 8. Bending column; 9. Annular groove; 10. Support column; 11. Anti-slip pad; 12. Clamping mechanism; 1201. Clamping frame; 1202. Fixed opening; 1203. Fixed groove; 1204. Return spring; 1205. Clamping plate; 1206. Moving seat; 1207. Connecting column; 1208. Auxiliary hole; 1209. Threaded rod; 1210. Threaded ring; 1211. Threaded collar; 1212. Annular threaded groove; 13. Pushing mechanism; 1301. Limiting strip; 1302. Limiting slider; 1303. Limiting groove; 1304. Connecting sleeve rod; 1305. Rotating seat; 1306. Drive motor No. 2; 1307. Cam; 1308. Rotating column. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This utility model provides a specific embodiment: a pipe bending machine to prevent pipe misalignment, including a working plate 1 and a movable plate 2. A clamping mechanism 12 is fixedly connected to one side of the movable plate 2. A pushing mechanism 13 is provided between the movable plate 2 and the working plate 1. A fixed frame 3 is fixedly connected to the front and rear of the middle of the upper end face of the working plate 1. Multiple guide wheels 4 are rotatably sleeved inside the fixed frame 3. The guide wheels 4 can achieve the purpose of restricting the movement of the pipe. A first drive motor 6 is fixedly connected to one side of the lower end face of the working plate 1. A connecting strip 7 is fixedly connected to the output end of the first drive motor 6. A bending column 8 is fixedly connected to one side of the upper end face of the working plate 1. An annular groove 9 is opened on one side of the upper end face of the working plate 1. The bending column 8 is movably set in the annular groove 9. A fixed column 5 is fixedly connected to one side of the upper end face of the working plate 1. The bending column 8 on the connecting strip 7 is driven to make a circular motion in the annular groove 9 by starting the first drive motor 6. It cooperates with the fixed column 5 to form a bending torque. Support columns 10 are fixedly connected to the lower end face of the working plate 1 near the four corners. Anti-slip pads 11 are fixedly connected to the lower end of the multiple support columns 10. The support columns 10 and anti-slip pads 11 can achieve the purpose of limiting and supporting the device.

[0037] The clamping mechanism 12 includes a clamping frame 1201. A fixing opening 1202 is provided on one side of the clamping frame 1201. Fixing grooves 1203 are provided on the inner walls of both the front and rear ends of the fixing opening 1202. Return springs 1204 are fixedly connected to the inner walls of opposite sides of the two fixing grooves 1203. Movable seats 1206 are fixedly connected to opposite ends of the two return springs 1204. Connecting posts 1207 are fixedly connected to opposite sides of the two movable seats 1206. Clamping plates 1205 are fixedly connected to opposite sides of the two connecting posts 1207. Auxiliary holes 1208 are provided on the inner walls of opposite sides of the two fixing grooves 1203. Threaded rods 1209 are fixedly connected to opposite sides of the two movable seats 1206. The outer wall of the clamping frame 1201 is threaded with threaded rings 1210. Threaded collars 1211 are fixedly connected to the opposite side of each of the two threaded rings 1210. Annular threaded grooves 1212 are opened on the front and rear end faces of the clamping frame 1201. The threaded collars 1211 are threadedly fitted into the annular threaded grooves 1212. By rotating the threaded rings 1210, the threaded collars 1211 are driven to fit into the annular threaded grooves 1212, thus achieving a firm clamping of pipe fittings of different diameters. By placing the pipe fitting into the fixing port 1202 of the clamping frame 1201, the pipe fitting pushes the clamping plate 1205 to compress the return spring 1204. At the same time, by rotating the threaded rings 1210, the threaded collars 1211 are driven to fit into the annular threaded grooves 1212, thus achieving a firm clamping of the pipe fitting.

[0038] Reference Figure 1 , Figure 2 and Figure 4The feeding mechanism 13 includes a second drive motor 1306, two limit sliders 1302, and two limit bars 1301. A cam 1307 is provided on one side of the upper end face of the working plate 1. A rotating column 1308 is fixedly connected to one side of the upper end face of the cam 1307. A rotating seat 1305 is fixedly connected to one side of the movable plate 2. A connecting sleeve rod 1304 is movably sleeved on the outer wall of the rotating column 1308. The other end of the connecting sleeve rod 1304 is movably sleeved in the rotating seat 1305. When the cam 1307 rotates, the rotating column 1308 moves with the cam 1307, pushing the rotating seat 1305 through the connecting sleeve rod 1304, thereby driving the movable plate 2 to move. The two limit bars 1301 are respectively fixedly connected to one side of the upper end face of the working plate 1. At the front and rear sides, two limiting strips 1301 are provided with limiting grooves 1303 on opposite sides. Two limiting sliders 1302 are fixedly connected to the front and rear ends of the movable plate 2 respectively. The limiting sliders 1302 are slidably disposed in the limiting grooves 1303. By sliding the limiting sliders 1302 in the limiting grooves 1303, the movement of the movable plate 2 is guided and limited, ensuring that the movable plate 2 moves stably along a straight line and realizing the smooth pushing of the pipe. The second drive motor 1306 is fixedly connected to one side of the lower end face of the working plate 1. The output end of the second drive motor 1306 passes through the working plate 1 and is fixedly connected to the cam 1307. The second drive motor 1306 can achieve the purpose of controlling the transmission of the cam 1307.

[0039] Working principle: When the pipe bending machine is working, the pipe is first placed in the fixing port 1202 of the clamping frame 1201. The pipe pushes the clamping plate 1205 to compress the return spring 1204. At the same time, the rotating threaded ring 1210 drives the threaded collar 1211 to be threaded into the annular threaded groove 1212, thus achieving a firm clamping of the pipe. The guide wheel 4 in the fixing frame 3 provides synchronous auxiliary positioning to ensure the accurate initial position of the pipe. Then, the first drive motor 6 starts, driving the bending column 8 on the connecting bar 7 to bend in the annular groove 1212. The cam 1307 rotates within the groove 9, forming a bending moment in conjunction with the fixed column 5. The second drive motor 1306 drives the cam 1307 to rotate, which in turn drives the movable plate 2 to reciprocate linearly within the limiting groove 1303 of the limiting strip 1301 via the rotating column 1308 and the connecting sleeve rod 1304. This pushes the pipe fitting to gradually bend and deform along a predetermined trajectory while it is clamped. Once the bending process is complete, the movable plate 2 is reset under the action of the pushing mechanism 13, and the clamping mechanism 12 is released, allowing the processed pipe fitting to be removed.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pipe bending machine for preventing pipe misalignment, comprising a working plate (1) and a movable plate (2), characterized in that: A clamping mechanism (12) is fixedly connected to one side of the movable plate (2), and a pushing mechanism (13) is provided between the movable plate (2) and the working plate (1). The clamping mechanism (12) includes a clamping frame (1201). A fixing port (1202) is provided on one side of the clamping frame (1201). Fixing grooves (1203) are provided on the inner walls of the front and rear ends of the fixing port (1202). A return spring (1204) is fixedly connected to the inner wall of the opposite side of the two fixing grooves (1203). A movable seat (1206) is fixedly connected to the opposite end of the two return springs (1204). A connecting column (1207) is fixedly connected to the opposite side of the two movable seats (1206). A clamping plate (1205) is fixedly connected to the opposite side of the two connecting columns (1207).

2. A pipe bending machine for avoiding pipe misalignment according to claim 1, characterized in that: The feeding mechanism (13) includes a second drive motor (1306), two limit sliders (1302) and two limit bars (1301). A cam (1307) is provided on one side of the upper end face of the working plate (1). A rotating column (1308) is fixedly connected to one side of the upper end face of the cam (1307). A rotating seat (1305) is fixedly connected to one side of the movable plate (2). A connecting sleeve rod (1304) is movably sleeved on the outer wall of the rotating column (1308). The other end of the connecting sleeve rod (1304) is movably sleeved in the rotating seat (1305).

3. A pipe bending machine for avoiding pipe misalignment according to claim 2, characterized in that: The two limiting strips (1301) are fixedly connected to the front and rear sides of the upper end face of the working plate (1). Limiting grooves (1303) are opened on the opposite sides of the two limiting strips (1301). The two limiting sliders (1302) are fixedly connected to the front and rear end faces of the movable plate (2). The limiting sliders (1302) are slidably disposed in the limiting grooves (1303).

4. A pipe bending machine for avoiding pipe misalignment according to claim 2, characterized in that: The second drive motor (1306) is fixedly connected to one side of the lower end face of the working plate (1). The output end of the second drive motor (1306) passes through the working plate (1) and is fixedly connected to the cam (1307).

5. A pipe bending machine for avoiding pipe misalignment according to claim 1, characterized in that: Auxiliary holes (1208) are provided on the inner walls of the opposite sides of the two fixed grooves (1203). Threaded rods (1209) are fixedly connected to the opposite sides of the two movable seats (1206). Threaded rings (1210) are threadedly fitted onto the outer walls of the two threaded rods (1209). Threaded collars (1211) are fixedly connected to the opposite sides of the two threaded rings (1210). Annular threaded grooves (1212) are provided on the front and rear end faces of the clamping frame (1201). The threaded collars (1211) are threadedly fitted into the annular threaded grooves (1212).

6. A pipe bending machine for avoiding pipe misalignment according to claim 1, characterized in that: The upper end face of the working plate (1) is fixedly connected to a fixed frame (3) at the front and back. Multiple guide wheels (4) are rotatably sleeved inside the fixed frame (3).

7. A pipe bending machine for avoiding pipe misalignment according to claim 1, characterized in that: A first drive motor (6) is fixedly connected to one side of the lower end face of the working plate (1). A connecting strip (7) is fixedly connected to the output end of the first drive motor (6). A bending column (8) is fixedly connected to one side of the upper end face of the connecting strip (7). An annular groove (9) is opened on one side of the upper end face of the working plate (1). The bending column (8) is movably arranged in the annular groove (9). A fixing column (5) is fixedly connected to one side of the upper end face of the working plate (1).

8. A pipe bending machine for avoiding pipe misalignment according to claim 1, characterized in that: The lower end face of the working plate (1) is fixedly connected to the four corners of each support column (10), and the lower end of each of the support columns (10) is fixedly connected to the anti-slip pad (11).

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