Bent pipe detection device

Abstract

The invention provides a bent pipe detection device, and belongs to the technical field of bent pipe manufacturing. The problems that an existing detection method depends on a complex electronic system, maintenance is troublesome, and professional personnel are needed for overhauling are solved. The bent pipe detection device comprises a supporting base and a detection device arranged on the supporting base, the detection device comprises two detection sets, each detection set comprises a horizontal moving device, an angle adjusting device and a detection sensor, and the horizontal moving devices are used for driving the angle adjusting devices and the detection sensors to move horizontally; the angle adjusting device is used for driving the detection sensors to rotate by an angle, and the two detection sensors are matched for detecting the bent pipe. The device has the advantages of improving the detection efficiency, being suitable for rapid screening of a production line, easy to manufacture and maintain, low in environment requirement and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of bent pipe manufacturing, and in particular relates to a bent pipe detection device. Background Art

[0002] Metal pipes (such as steel pipes, aluminum alloy pipes, copper pipes, etc.) are widely used in the manufacture of bent pipe components in many industries, including automotive, aerospace, shipbuilding, energy, and furniture, due to their excellent strength-to-weight ratio, good rigidity, and structural efficiency. Pipe bending is a complex process involving both plastic and elastic deformation. When the external force is unloaded, the bent pipe will undergo a certain degree of elastic recovery due to the inherent elastic properties of the material, resulting in a decrease in the bending angle. This phenomenon is called springback. The springback angle (i.e., the difference between the actual bending angle after unloading and the mold design angle or target angle) is a key parameter for measuring the accuracy of pipe bending and the size and shape of the final product.

[0003] To ensure that bent pipe components meet design requirements and prevent substandard products from entering the market, springback angle accuracy testing must be performed after bending. However, existing testing methods often rely on complex electronic systems, which are difficult to maintain and require professional inspection. Summary of the Invention

[0004] The purpose of the present invention is to provide a bend pipe detection device in view of the above-mentioned problems existing in the prior art.

[0005] The objectives of the present invention can be achieved through the following technical solutions: a bent pipe detection device, comprising a support base and a detection device arranged on the support base, the detection device comprising two detection groups, each of which comprises a horizontal moving device, an angle adjustment device and a detection sensor, the horizontal moving device is used to drive the angle adjustment device and the detection sensor to move horizontally, the angle adjustment device is used to drive the detection sensor to rotate an angle, and the two detection sensors are used together to detect bent pipes.

[0006] The working principle of the present invention: The present invention requires a clamping device to cooperate. The clamping device adopts the existing technology. It only needs to be able to clamp and fix the bent pipe and drive it to move up and down. The bent pipe is divided into a clamping end and a detection end. The detection angle of the two detection sensors is set by fixing the clamping end angle. At the same time, the distance between the two detection sensors is moved by the horizontal moving device. The distance between the two is determined according to the outer diameter of the bent pipe and the accuracy difference. The detection sensor adopts a contact sensor. During detection, the clamping device clamps the bent pipe and moves up and down, passing between the two detection sensors. If the rebound angle of the bent pipe meets the requirements, the bent pipe will not contact the detection sensor; when the detection sensor detects an object, it means that the rebound angle of the bent pipe is too large or too small, and it is an unqualified product. The two detection groups are used to detect excessive rebound angle and excessive rebound angle respectively.

[0007] In the above-mentioned bent pipe detection device, the horizontal moving device includes a servo motor, two linear guide rails, a ball screw, a connecting seat and multiple sliders. The slider is slidably connected to the linear guide rails. The slider is used to connect the angle adjustment device. The connecting seat is threadedly connected to the ball screw, and the connecting seat is connected to the angle adjustment device. The servo motor is used to drive the ball screw to rotate and drive the angle adjustment device to move horizontally.

[0008] In the above-mentioned bend pipe detection device, the angle adjustment device includes a first connecting plate, a stepper motor, a motor fixing seat and a second connecting plate. The first connecting plate is used to connect the slider and the connecting seat. The motor fixing seat is fixedly connected to the first connecting plate. The stepper motor is used to drive the second connecting plate to rotate. The second connecting plate is used for installing the detection sensor.

[0009] In the above-mentioned bend pipe detection device, a coupling is provided between the servo motor and the ball screw.

[0010] In the above-mentioned bend pipe detection device, the stepping motor is connected to a connecting flange, the connecting flange passes through the motor fixing seat via a screw and is connected to the harmonic reducer, and the harmonic reducer is connected to the second connecting plate.

[0011] In the above-mentioned bent pipe detection device, an L-shaped plate for supporting the detection sensor is provided on the second connecting plate.

[0012] In the above-mentioned bent pipe detection device, the detection sensor is a contact sensor.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The system adopts contact sensing combined with the automatic up and down movement of the clamping device. The springback angle detection of the bent pipe can be completed in one pass without complicated scanning or multiple positioning. It significantly improves the detection efficiency and is suitable for rapid screening on the production line.

[0014] 2. Judgment is based on direct physical contact, that is, contact = unqualified, no contact = qualified. The principle is simple and clear, and the signal is clear. It avoids the signal interference, misreading or uncertainty caused by complex algorithms that may exist in non-contact sensors, and the detection results are highly reliable.

[0015] 3. The core detection element utilizes a mature contact sensor, significantly reducing costs compared to high-precision laser or vision sensors. The overall device features a simple structural design (clamping, movement, sensing), making it easy to manufacture and maintain, reducing equipment investment and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the angle adjustment device of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the horizontal moving device of the present invention.

[0019] In the figure, 1. support base; 2. detection device; 3. detection group; 4. horizontal moving device; 5. angle adjustment device; 6. detection sensor; 7. servo motor; 8. linear guide; 9. ball screw; 10. connecting seat; 11. slider; 12. first connecting plate; 13. stepper motor; 14. motor fixing seat; 15. second connecting plate; 16. coupling; 17. connecting flange; 18. harmonic reducer; 19. L-shaped plate. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0021] like Figure 1-Figure 3 As shown, the present bend detection device comprises a support base 1 and a detection device 2 arranged on the support base 1, the detection device 2 comprises two detection groups 3, the detection groups 3 each comprise a horizontal moving device 4, an angle adjustment device 5 and a detection sensor 6, the horizontal moving device 4 is used to drive the angle adjustment device 5 and the detection sensor 6 to move horizontally, the angle adjustment device 5 is used to drive the detection sensor 6 to rotate an angle, and the two detection sensors 6 are used together to detect bends.

[0022] To elaborate further, the horizontal moving device 4 includes a servo motor 7, two linear guides 8, a ball screw 9, a connecting seat 10 and multiple sliders 11. The slider 11 is slidably connected to the linear guide 8. The slider 11 is used to connect the angle adjustment device 5. The connecting seat 10 is threadedly connected to the ball screw 9, and the connecting seat 10 is connected to the angle adjustment device 5. The servo motor 7 is used to drive the ball screw 9 to rotate and drive the angle adjustment device 5 to move horizontally. The combination of ball screw 9 + servo motor 7 + linear guide 8 is used to ensure the accuracy of the distance adjustment between the two sensors, which is the basis of detection accuracy. The linear guide 8 and ball screw 9 provide high-rigidity support and extremely low rolling friction to ensure that the movement process is smooth and there is no creeping phenomenon, which is crucial for stable sensor detection.

[0023] In further detail, the angle adjustment device 5 includes a first connecting plate 12, a stepper motor 13, a motor fixing seat 14 and a second connecting plate 15. The first connecting plate 12 is used to connect the slider 11 and the connecting seat 10. The motor fixing seat 14 is fixedly connected to the first connecting plate 12. The stepper motor 13 is used to drive the second connecting plate 15 to rotate. The second connecting plate 15 is used for installing the detection sensor 6. The first connecting plate 12 serves as a basic platform, connecting the fixing seat and the second connecting plate 15 to form a rigid frame to ensure the stability and accuracy of the angle adjustment.

[0024] In further detail, a coupling 16 is provided between the servo motor 7 and the ball screw 9. The coupling 16 can effectively compensate for the slight coaxiality deviation and angular deviation between the motor shaft and the ball screw 9 shaft, thereby avoiding stress, vibration and early wear caused by hard connection.

[0025] To be more specific, the stepper motor 13 is connected to a connecting flange 17, which passes through the motor fixing base 14 through a screw and is connected to a harmonic reducer 18, and the harmonic reducer 18 is connected to the second connecting plate 15. The harmonic reducer 18 has an extremely high reduction ratio, zero backlash and high rigidity, which greatly subdivides the step angle of the stepper motor 13, thereby realizing extremely precise and hysteresis-free fine-tuning of the sensor installation angle.

[0026] To elaborate further, an L-shaped plate 19 for supporting the detection sensor 6 is provided on the second connecting plate 15. The L-shaped plate 19 provides a stable mounting base for the sensor. Its structure helps to increase rigidity, reduce the slight vibration or deformation of the sensor itself during detection, and improve the detection stability. At the same time, the position of the L-shaped plate 19 can also be adjusted.

[0027] To be more specific, the detection sensor 6 is a contact sensor, which adopts existing technology.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0029] Although a large number of terms are used in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A bend pipe detection device, characterized in that: The invention comprises a support base (1) and a detection device (2) arranged on the support base (1); the detection device (2) comprises two detection groups (3); the detection groups (3) each comprise a horizontal moving device (4), an angle adjustment device (5) and a detection sensor (6); the horizontal moving device (4) is used to drive the angle adjustment device (5) and the detection sensor (6) to move horizontally; the angle adjustment device (5) is used to drive the detection sensor (6) to rotate an angle; and the two detection sensors (6) cooperate to detect a bent pipe.

2. A bend pipe detection device according to claim 1, characterized in that: The horizontal moving device (4) includes a servo motor (7), two linear guide rails (8), a ball screw (9), a connecting seat (10) and a plurality of sliders (11), wherein the sliders (11) are slidably connected to the linear guide rails (8), and the sliders (11) are used to connect the angle adjustment device (5), the connecting seat (10) is threadedly connected to the ball screw (9), and the connecting seat (10) is connected to the angle adjustment device (5), and the servo motor (7) is used to drive the ball screw (9) to rotate, thereby driving the angle adjustment device (5) to move horizontally.

3. The bend pipe detection device according to claim 1, characterized in that: The angle adjustment device (5) comprises a first connecting plate (12), a stepping motor (13), a motor fixing seat (14) and a second connecting plate (15), wherein the first connecting plate (12) is used to connect the slider (11) and the connecting seat (10), the motor fixing seat (14) is fixedly connected to the first connecting plate (12), the stepping motor (13) is used to drive the second connecting plate (15) to rotate, and the second connecting plate (15) is used for mounting the detection sensor (6).

4. The bend pipe detection device according to claim 2, characterized in that: A coupling (16) is provided between the servo motor (7) and the ball screw (9).

5. The bend pipe detection device according to claim 3, characterized in that: The stepper motor (13) is connected to a connecting flange (17), the connecting flange (17) passes through the motor fixing seat (14) via a screw and is connected to the harmonic reducer (18), and the harmonic reducer (18) is connected to the second connecting plate (15).

6. The bend pipe detection device according to claim 3, characterized in that: An L-shaped plate (19) for supporting the detection sensor (6) is provided on the second connecting plate (15).

7. The bend pipe detection device according to claim 1, characterized in that: The detection sensor (6) is a contact sensor.

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