Intelligent back burning system

Abstract

The utility model provides an intelligent back burning system which comprises a conveying mechanism used for bearing a workpiece and driving the workpiece to move in the forward direction of a first direction; the back burning mechanism is arranged at the conveying mechanism and is used for heating the back surface of the workpiece; the temperature detection mechanism is arranged on the side, in the forward direction of the first direction, of the back burning mechanism, the temperature detection mechanism comprises at least one temperature detection device and a first installation frame, and the temperature detection device is installed on the first installation frame; the temperature detection range of the temperature detection device at least partially covers the surface of the conveying mechanism, and the temperature detection device is used for collecting temperature data of the surface of the workpiece processed by the back burning mechanism. The temperature detection mechanism is arranged on the forward side of the back burning mechanism in the intelligent back burning system, and the back burning effect is detected through the temperature detection mechanism after back burning is completed, so that back burning effect feedback data is obtained in time.

Description

Technical Field

[0001] The present application relates to the field of intelligent welding technology, and in particular to an intelligent back-burning system. Background Art

[0002] Welding is the cornerstone of the manufacturing industry and plays a vital role in the development of the industrial economy. For example, shipbuilding, as a key technology in this field, is directly related to the quality and efficiency of shipbuilding. During the subassembly welding process, high heat input causes localized deformation in the workpiece after welding. Therefore, subassembly back-burning is necessary to eliminate this deformation after welding. Subassembly back-burning is a machining method for subassembly hull components. To control localized deformation in the hull structure, the back of the workpiece is heated to eliminate residual stresses generated during welding and correct angular distortion. Subassembly back-burning utilizes the principle of localized metal heating. Plastic deformation occurs when the heated area is restrained by the surrounding cold metal, preventing it from expanding freely. This plastic deformation, followed by contraction during cooling, eliminates the original deformation. Existing back-burning systems are largely automated, but they lack the ability to verify the back-burning results in a timely manner or effectively test the effectiveness of the back-burning process. Utility Model Content

[0003] In response to the problems in the prior art, the purpose of this application is to provide an intelligent back-burning system, which detects the back-burning effect through a temperature detection mechanism after the back-burning is completed, so as to obtain back-burning effect feedback data in a timely manner.

[0004] The present invention provides an intelligent back-burning system, comprising:

[0005] A conveying mechanism, for carrying the workpiece and driving the workpiece to move forward along a first direction;

[0006] The back-burning mechanism is located at the conveying mechanism and is used to heat the back of the workpiece;

[0007] The temperature detection mechanism is arranged on the positive side of the back-burning mechanism along the first direction. The temperature detection mechanism includes at least one temperature detection device and a first mounting frame. The temperature detection device is mounted on the first mounting frame. The temperature detection range of the temperature detection device at least partially covers the surface of the conveying mechanism, and is used to collect temperature data of the surface of the workpiece after being processed by the back-burning mechanism.

[0008] In some embodiments, the back-burning mechanism includes a moving track, at least one back-burning gun and a back-burning gun moving device, and the back-burning gun moving device is used to drive the back-burning gun to move along the second direction on the moving track.

[0009] In some embodiments, the temperature detection mechanism further includes a first moving device, and the first moving device is used to drive the temperature detection device to move along the second direction.

[0010] In some embodiments, the temperature detection device is a line laser thermal imaging scanner.

[0011] In some embodiments, a position detection mechanism is further included, which is arranged on the opposite side of the back-burning mechanism along the first direction. The position detection mechanism includes at least one ranging sensor, a second mounting frame and a second moving device. The ranging range of the ranging sensor at least partially covers the surface of the conveying mechanism. The second moving device is used to drive the ranging sensor to move along the second direction on the second mounting frame.

[0012] In some embodiments, the ranging sensor is a line laser ranging sensor.

[0013] In some embodiments, at least one workpiece arrival sensor is further included, which is disposed on one side of the conveying mechanism and is located on the opposite side of the position detection mechanism along the first direction.

[0014] In some embodiments, the system further includes at least one back-burn mechanism ignition sensor disposed on one side of the conveying mechanism, and the back-burn mechanism ignition sensor is at least partially aligned with the back-burn mechanism in the second direction.

[0015] In some embodiments, the first direction is perpendicular to the second direction, and the first mounting frame spans across both sides of the conveying mechanism.

[0016] In some embodiments, the conveying mechanism includes multiple conveying rollers, a driving device and a control device, wherein the driving device is used to drive the conveying rollers to rotate so that the conveying rollers convey the workpiece along a first direction, and adjust the rotation speed of the conveying rollers according to the speed control signal sent by the control device.

[0017] The intelligent back-burning system provided by this application has the following advantages:

[0018] This application provides a temperature detection mechanism on the forward side of the back-burning mechanism in the intelligent back-burning system. After the back-burning is completed, the temperature detection mechanism is used to detect the back-burning effect, thereby obtaining timely feedback data on the back-burning effect. This is conducive to timely understanding the back-burning effect and timely adjustment of the back-burning process, thereby more effectively improving product quality. This intelligent back-burning system can be used in the back-burning processing of small ship components to improve the processing efficiency and quality of ship components. It can also be applied to workpiece processing scenarios in other fields that require a back-burning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings.

[0020] Figure 1 This is a schematic structural diagram of an intelligent back-burning system according to an embodiment of the present application;

[0021] Figure 2 This is a top view of an intelligent back-burning system according to an embodiment of the present application;

[0022] Figure 3 This is a schematic structural diagram of a back-burning mechanism according to an embodiment of the present application;

[0023] Figure 4 is a structural diagram of a position detection mechanism according to an embodiment of the present application;

[0024] Figure 5 It is a sensor definition mechanism of an embodiment of the present application;

[0025] Figures 6-8 Schematic diagram of the temperature detection structure of an embodiment of the present application.

[0026] Reference numerals:

[0027] 1 Conveying mechanism 4 Temperature detection mechanism

[0028] 2 Back-burning mechanism 41 Temperature detection device

[0029] 21 Back Burning Gun 42 First Moving Device

[0030] 22 Back burning gun moving device 43 First installation frame

[0031] 23 Moving track 44 Temperature detection range

[0032] 3 Position detection mechanism 5 Sensing positioning mechanism

[0033] 31 Distance sensor 51 Mounting bracket

[0034] 32 Second moving device 52 Workpiece in-place sensor

[0035] 33 Second mounting frame 53 Back-burning mechanism ignition sensor DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and will fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. "Or" and "or" in the specification may both mean "and" or "or". Although the terms "above", "below", "between", etc. may be used in this specification to describe different exemplary features and elements of the present application, these terms are used herein only for convenience, such as according to the directions of the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although "first" or "second" etc. are used in this specification to represent certain features, they are only used to represent the function and are not intended to limit the number and importance of specific features.

[0037] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides an intelligent back-burning system, including a conveying mechanism 1, a back-burning mechanism 2 and a temperature detection mechanism 4. The conveying mechanism 1 is used to carry the workpiece and drive the workpiece to move in the positive direction along the first direction. The conveying mechanism 1 includes a plurality of conveying rollers and a driving device, and the driving device includes, for example, a servo motor, which is used to drive the conveying rollers to rotate so that the conveying rollers convey the workpiece along the first direction. The back-burning mechanism 2 is provided at the conveying mechanism 1, and is used to heat the back of the workpiece. The temperature detection mechanism 4 is provided on the positive side of the back-burning mechanism 2 along the first direction, and is used to collect temperature data on the surface of the workpiece after being processed by the back-burning mechanism 2, and is used to analyze the back-burning effect through the temperature field. Here, the first direction refers to Figure 2 In the X direction, the positive direction of the first direction refers to the direction in which the workpiece is transported by the transport mechanism 1 during processing. The reverse direction of the first direction refers to the direction opposite to the direction in which the workpiece is transported. Figure 2 From the perspective of , the opposite of the first direction is the direction from right to left. Therefore, during the back-burning process, the workpiece is placed above the conveying mechanism 1, and the conveying roller is driven to rotate by the driving device to convey the workpiece forward. After the workpiece is conveyed to the top of the back-burning mechanism 2, the back-burning mechanism 2 heats the back of the workpiece. After heating, the workpiece continues to move forward. The temperature detection mechanism 4 detects the surface temperature of the heated workpiece, thereby obtaining feedback data on the back-burning effect in a timely manner, which is conducive to timely understanding the back-burning effect and timely adjustment of the back-burning process. If the surface temperature of the workpiece is too high, the conveying speed of the conveying mechanism 1 can be increased so that the workpiece obtains less heat input. If the surface temperature of the workpiece is too low, the conveying speed of the conveying mechanism 1 can be reduced so that the workpiece obtains more heat input, thereby more effectively improving product quality.

[0038] like Figure 3 As shown, the back-burning mechanism 2 includes a moving track 23, at least one back-burning gun 21 and a back-burning gun moving device 22. The back-burning gun moving device 22 includes, for example, a servo motor for driving the back-burning gun 21 to move along the second direction on the moving track 23. Here, the second direction refers to Figure 2 The Y direction, i.e., the width direction, is perpendicular to the X direction, meaning that the movable track 23 extends laterally, and the back-burning gun 21 can move laterally relative to the workpiece. The movable track 23 adopts a linear guide design, and the back-burning gun moving device 22 includes a slider that can slide along the guide rail. The cables of the air pipe and the motor can pass through the wire groove on the slider, thereby providing a certain degree of protection for the air pipe and the cables. A rigid shield can be provided above the movable track 23 to effectively prevent foreign matter from falling onto the track surface. The number and location of the back-burning guns 21 can be selected and set as needed. For example, the back-burning mechanism 2 can be equipped with multiple groups of back-burning trolleys to meet the back-burning task when there are a large number of workpieces. Each back-burning trolley is equipped with two back-burning guns 21 and two sets of automatic ignition equipment. A back-burning gun moving device 22 is provided below the back-burning trolley. Limit switches are installed on the back-burning trolleys to limit each other and ensure that the gap between adjacent back-burning trolleys is not too small. To ensure safety and facilitate adjustment, the gas control valves are all located away from the flame heating area of ​​the back-burning gun 21 and are arranged on the trolley body of the back-burning trolley. Optionally, a manual adjustment mechanism is provided at the bottom of the back-burning trolley to accurately adjust the position of the back-burning nozzle as needed. A gas backfire prevention device is provided at the gun head of the back-burning gun 21 to prevent backfire. The gas pipeline for transporting gas is located in the lower area of ​​the movable track 23 and is provided with a gas mis-path explosion detection and alarm device. A flow blower can be configured on at least one side of the movable track 23 for local ventilation to prevent gas accumulation and explosion.

[0039] like Figure 1 and Figure 4 As shown, the intelligent back-burning system also includes a position detection mechanism 3, which is arranged on the opposite side of the back-burning mechanism 2 along the first direction, and is used to measure the position to be back-burned on the workpiece. The position detection mechanism 3 includes at least one distance measuring sensor 31, a second mounting frame 33 and a second moving device 32. The distance measuring range of the distance measuring sensor 31 at least partially covers the surface of the conveying mechanism 1 and is capable of detecting and covering the width direction of the workpiece. The second moving device 32, for example, includes a servo motor, which is used to drive the distance measuring sensor 31 to move along the second direction on the second mounting frame 33. The second mounting frame 33 is a gantry frame that spans the lateral sides of the conveying mechanism 1. The distance measuring sensor 31 can be optionally a line laser distance measuring sensor, but the present application is not limited thereto. The distance measuring sensor 31 can also be other types of sensors, such as 3D cameras, area array cameras and other sensors.

[0040] like Figure 1 and Figure 5As shown, the intelligent back-burning system also includes a sensor positioning mechanism 5, which is located on one side of the conveying mechanism 1 and is used to detect the conveying position of the workpiece. Each sensor positioning mechanism 5 includes a mounting bracket 51, at least one workpiece in-position sensor 52, and at least one back-burning mechanism ignition sensor 53. In this embodiment, two sensor positioning mechanisms 5 are provided, one located on either side of the conveying mechanism 1. The workpiece in-position sensor 52 is located on the opposite side of the position detection mechanism 3 along the first direction and is used to detect whether the workpiece has entered the position measurement range of the position detection mechanism 3. The back-burning mechanism ignition sensor 53 is at least partially aligned with the back-burning mechanism 2 in the second direction and is used to detect whether the workpiece has entered the heating position range of the back-burning mechanism 2. The workpiece in-position sensor 52 is, for example, a through-beam photoelectric switch, with the transmitting end and the receiving end respectively located on either side of the conveying mechanism 1. When the workpiece reaches the position of the workpiece in-position sensor 52, the rib plate blocks the laser beam emitted by the transmitting end. If the receiving end does not receive the laser beam, it is determined that the workpiece has been detected. The back-burning mechanism ignition sensor 53 is, for example, a beam-type photoelectric switch, with a transmitter and a receiver disposed on either side of the conveyor mechanism 1. When the workpiece reaches the location of the back-burning mechanism ignition sensor 53, the ribs block the laser beam emitted by the transmitter. If the receiver does not receive the laser beam, it is determined that the workpiece has been detected.

[0041] like Figure 1 、 Figures 6-8 As shown, the temperature detection mechanism 4 includes at least one temperature detection device 41, a first mounting frame 43, and a first moving device 42. The temperature detection range 44 of the temperature detection device 41 at least partially covers the surface of the conveying mechanism 1. The first moving device 42 includes, for example, a servo motor for driving the temperature detection device 41 to move along the first mounting frame 43 in a second direction. The first mounting frame 43 is a gantry frame that spans the lateral sides of the conveying mechanism 1. The temperature detection device 41 is a line laser thermal imaging scanner, but the present application is not limited thereto.

[0042] Therefore, the intelligent back-burning system is equipped with two gantry frames. One gantry frame is equipped with a distance sensor 31 for detecting the position to be back-burned, and the other gantry frame is equipped with a temperature detection device 41 for detecting the temperature field. The conveying mechanism 1 also includes a controller that sends a speed control signal to the drive device, which adjusts the rotation speed of the conveyor roller based on the speed control signal sent by the controller. This speed control signal can be an automatic speed increase or speed decrease signal generated based on the temperature detection data collected by the temperature detection device 41, or it can be sent to the controller by a staff member through a user operation page or operation button based on the temperature detection data collected by the temperature detection device 41.

[0043] When the intelligent back-burning system is working, when the workpiece moves on the conveying mechanism 1 in the positive direction of the first direction and passes through the workpiece in-position sensor 52, the workpiece in-position sensor 52 outputs a detection signal to start the ranging sensor 31 to start scanning the workpiece, and the second moving mechanism drives the ranging sensor 31 to reciprocate along the second direction, and the position of the rib plate on the workpiece is determined by the data collected by the ranging sensor 31 (for example, the existing algorithm is used here to drive the ranging sensor 31 to reciprocate in the second direction at a predetermined moving speed. At the same time, the current position of the position counting sensor is read, and the Y coordinate of the current point cloud image is recorded. The X coordinate is determined by the calibration results of the second mounting frame 33 and the laser ranging sensor 31. The ranging sensor 31 is used to scan and obtain laser point cloud data, and a model of the workpiece is constructed based on the laser point cloud data to identify the position of each rib plate in the workpiece), and the rib plate position is used as the position to be back-burned. The back-burning gun 21 moves to the corresponding position, and the workpiece continues to move forward and moves to the position of the back-burning mechanism 2. When the workpiece passes through the back-burning mechanism ignition sensor 53, the back-burning mechanism ignition sensor 53 outputs a detection signal to start the back-burning gun 21, and back-burns the back of the workpiece. After back-burning heating, the workpiece continues to move forward, and through the temperature detection mechanism 4, the first moving device 42 drives the temperature detection device 41 to reciprocate along the second direction. When the workpiece passes through the back-burning mechanism ignition sensor 53, the first moving device 42 drives the temperature detection device 41 to start moving horizontally. The temperature detection device 41 scans and obtains the temperature detection data of the workpiece, and a temperature field distribution diagram of the workpiece can be obtained. Based on the temperature field distribution diagram, it is possible to analyze whether the workpiece rib position has obtained sufficient heat input. Only when the workpiece rib position has obtained sufficient heat input can the deformation caused by welding be effectively offset during the cooling process. The speed of the workpiece conveying is adjusted according to whether the workpiece rib position has obtained sufficient heat input. For example, if the surface temperature of the workpiece is higher than a preset temperature, it indicates excessive heat input, and the conveying speed of the conveyor rollers for the workpiece needs to be increased. If the surface temperature of the workpiece is lower than the preset temperature, it indicates insufficient heat input, and the conveying speed of the conveyor rollers for the workpiece needs to be reduced. Adjusting the conveying speed of the conveyor rollers based on the surface temperature of the workpiece can be accomplished by a worker analyzing and judging the collected temperature data through a user interface or button control. Alternatively, it can be accomplished by setting up an automated process for adaptive control, or through hardware circuitry. For example, converting the surface temperature signal of the workpiece into a voltage signal, comparing the voltage signal with a preset reference signal through a comparator, and connecting the output of the comparator to the input of a controller.

[0044] In summary, the intelligent back-burning system provided by this application has the following advantages:

[0045] This application provides a temperature detection mechanism on the forward side of the back-burning mechanism in the intelligent back-burning system. After the back-burning is completed, the temperature detection mechanism is used to detect the back-burning effect, thereby obtaining timely feedback data on the back-burning effect. This is conducive to timely understanding the back-burning effect and timely adjustment of the back-burning process, thereby more effectively improving product quality. This intelligent back-burning system can be used in the back-burning processing of small ship components to improve the processing efficiency and quality of ship components. It can also be applied to workpiece processing scenarios in other fields that require a back-burning process.

[0046] The above content is a further detailed description of the present application in conjunction with specific preferred embodiments, and the specific implementation of the present application cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be considered to fall within the scope of protection of the present application.

Claims

1. An intelligent back-burning system, characterized in that: include: A conveying mechanism, for carrying the workpiece and driving the workpiece to move forward along a first direction; A back-burning mechanism, provided at the conveying mechanism, for heating the back side of the workpiece; A temperature detection mechanism is provided on the positive side of the back-burning mechanism along the first direction. The temperature detection mechanism includes at least one temperature detection device and a first mounting frame. The temperature detection device is mounted on the first mounting frame. The temperature detection range of the temperature detection device at least partially covers the surface of the conveying mechanism, and is used to collect temperature data of the surface of the workpiece after being processed by the back-burning mechanism.

2. The intelligent back-burning system according to claim 1, characterized in that: The back-burning mechanism includes a moving track, at least one back-burning gun and a back-burning gun moving device, and the back-burning gun moving device is used to drive the back-burning gun to move along the second direction on the moving track.

3. The intelligent back-burning system according to claim 1, characterized in that: The temperature detection mechanism further includes a first moving device, which is used to drive the temperature detection device to move along a second direction.

4. The intelligent back-burning system according to claim 1, characterized in that: The temperature detection device is a line laser thermal imaging scanner.

5. The intelligent back-burning system according to claim 1, characterized in that: It also includes a position detection mechanism, which is arranged on the opposite side of the back-burning mechanism along the first direction. The position detection mechanism includes at least one ranging sensor, a second mounting frame and a second moving device. The ranging range of the ranging sensor at least partially covers the surface of the conveying mechanism. The second moving device is used to drive the ranging sensor to move along the second direction on the second mounting frame.

6. The intelligent back-burning system according to claim 5, characterized in that: The distance measuring sensor is a line laser distance measuring sensor.

7. The intelligent back-burning system according to claim 5, characterized in that: It also includes at least one workpiece arrival sensor, which is arranged on one side of the conveying mechanism and located on the opposite side of the position detection mechanism along the first direction.

8. The intelligent back-burning system according to claim 1, characterized in that: The device further includes at least one back-burn mechanism ignition sensor disposed on one side of the conveying mechanism, and the back-burn mechanism ignition sensor is at least partially aligned with the back-burn mechanism in the second direction.

9. The intelligent back-burning system according to claim 3, characterized in that: The first direction is perpendicular to the second direction, and the first mounting frame spans across both sides of the conveying mechanism.

10. The intelligent back-burning system according to claim 1, characterized in that: The conveying mechanism includes a plurality of conveying rollers, a driving device and a control device. The driving device is used to drive the conveying rollers to rotate so that the conveying rollers convey the workpiece along the first direction, and adjust the rotation speed of the conveying rollers according to the speed control signal sent by the control device.

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