Intelligent bending and forming device for pipe fittings

Abstract

The present invention relates to the field of metal processing technology, and discloses an intelligent bending and forming device for pipe fittings, comprising: a horizontal fixed platform, a horizontal moving device, a first pressure device, the first pressure device comprising a support block, a pneumatic unit and a sliding assembly; a connecting piece, a second pressure device comprising a rotating block, a first bracket, a second bracket, a limit rod and a clamping unit; the clamping unit comprises a fixed end, a lead screw and a clamping motor; a bending device comprising a supporting frame and a bending die, the bending die is provided with a plurality of temperature sensors and infrared sensors; a control module is electrically connected to the power supply motor, the pneumatic unit, the clamping motor, the infrared sensor and the temperature sensor. The present invention realizes the automation and intelligent control of the pipe fitting bending process by integrating a variety of devices and sensors.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to an intelligent bending and forming device for pipe fittings. Background Art

[0002] With the continuous progress of industrial manufacturing, the requirements for pipe processing are getting higher and higher. Traditional pipe bending processing methods usually rely on manual operation or semi-automatic equipment. These methods are not only labor-intensive, but also difficult to ensure accuracy and consistency. Especially when processing pipes with different diameters and wall thicknesses, traditional methods often cannot meet production needs, resulting in low production efficiency, serious material waste, and unstable quality.

[0003] In order to improve the accuracy and efficiency of pipe bending, automated pipe bending equipment has gradually been used. However, existing automated pipe bending equipment still has some shortcomings, such as limited adaptability to different pipe materials and sizes, requiring manual settings by experienced personnel, complex operation settings, and cumbersome adjustment processes. When facing the bending of heated pipes, it is impossible to automatically adjust according to the actual situation of the pipes, and there is a lack of feedback adjustment mechanism, resulting in unsatisfactory pipe bending effects.

[0004] Therefore, it is necessary to design an intelligent bending and forming device for pipe fittings to solve the problems existing in the current technology. Summary of the invention

[0005] In view of this, the present invention proposes an intelligent bending and forming device for pipe fittings, aiming to solve the problems of lack of feedback adjustment mechanism in the current automatic bending process of pipe fittings, poor adaptability of the device, and need for human assistance operation.

[0006] The present invention proposes a pipe intelligent bending and forming device, comprising:

[0007] Horizontal fixed platform;

[0008] A horizontal moving device is fixed on the left side of the horizontal fixed platform, and the horizontal moving device includes a horizontal displacement slide and a power supply motor;

[0009] A first pressure device is fixed on the slider of the horizontal displacement slide, and the first pressure device includes a support block, a pneumatic unit and a sliding assembly. The middle of the support block is a hollow structure, and the sliding assembly is slidably arranged in the support block; the pneumatic unit includes a cylinder, a pressure gauge and a pneumatic slide rod, the pneumatic slide rod is fixed on the left side of the support block, and the other end of the pneumatic slide rod is fixedly connected to the sliding assembly, and the cylinder is used to provide compressed air to the pneumatic slide rod;

[0010] A connecting member, wherein the left end of the connecting member is connected to the sliding assembly through a first connecting rod, the lower end of the connecting member is connected to the horizontal fixed platform through a second connecting rod, and the upper end of the connecting member is connected to the second pressure device through a third connecting rod;

[0011] The second pressure device includes a rotating block, a first bracket, a second bracket, a limiting rod and a clamping unit; the limiting rods are provided in a plurality, the first bracket and the second bracket are provided with two respectively, the limiting rod is provided between the two first brackets, and the limiting rod is provided between the two second brackets, the clamping unit is fixedly provided on the upper parts of the first bracket and the second bracket, and the clamping unit includes a fixed end, a lead screw and a clamping motor;

[0012] The bending device comprises a support frame and a bending die, wherein a surface of the bending die in contact with the pipe to be bent is provided with a plurality of temperature sensors, wherein the temperature sensors are used to detect the surface temperature of the pipe to be bent, and an infrared sensor is provided on one side of the bending die;

[0013] The control module is electrically connected to the power supply motor, the pneumatic unit, the clamping motor, the infrared sensor and the temperature sensor. The control module is used to determine whether to start the bending action according to the temperature data of the temperature sensor, and to control the operation of the power supply motor, the pneumatic unit and the clamping motor according to the surface temperature.

[0014] Furthermore, the control module includes: a collection unit, a processing unit and a judgment unit;

[0015] The acquisition unit is configured to acquire temperature data from a bottom temperature sensor, compare the temperature data with the ambient temperature, and determine whether to start the bending action according to the comparison result;

[0016] The processing unit is configured to, when the acquisition unit determines to start the bending action, control the power supply motor to rotate, and acquire the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor, and determine whether to start the cylinder and stop the power supply motor according to the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor; the processing unit is also configured to, when it is determined to start the cylinder, determine the air supply rate of the cylinder according to the temperature data of the bottom temperature sensor;

[0017] The judgment unit is configured to collect the real-time temperature of the temperature sensor, determine the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, compare the characteristic factor with the historical bending data, and determine whether to adjust the air supply rate according to the comparison result to determine the final air supply rate of the cylinder;

[0018] The judgment unit is also configured to collect temperature data of all the temperature sensors when the bending is completed at the final air supply rate, establish a temperature distribution diagram of the temperature data and position, determine whether to turn on the clamping motor according to the temperature distribution diagram, and determine the working time of the clamping motor when it is determined to turn on the clamping motor.

[0019] Furthermore, when the acquisition unit determines whether to start the bending action according to the comparison result, it includes:

[0020] When the temperature data is greater than the ambient temperature, the acquisition unit determines to start the bending action;

[0021] When the temperature data is less than or equal to the ambient temperature, the acquisition unit determines not to start the bending action.

[0022] Furthermore, when the processing unit determines whether to start the cylinder and stop the power supply motor according to the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor, it includes:

[0023] When the temperature data of the infrared sensor is equal to the temperature data of the bottom temperature sensor, the processing unit determines to start the cylinder and stop the power supply motor;

[0024] When the temperature data of the infrared sensor is greater than the temperature data of the bottom temperature sensor, the processing unit determines that the power supply motor continues to operate and does not start the cylinder.

[0025] Further, when the processing unit determines the air supply rate of the cylinder according to the temperature data of the bottom temperature sensor, it includes:

[0026]

[0027] Among them, Q represents the air supply rate of the cylinder, A represents the effective area of ​​the cylinder, E represents the Young's modulus of the pipe to be bent, t represents the wall thickness, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and k represents a constant.

[0028] Further, when the judgment unit determines the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, the characteristic factor is calculated by the following formula:

[0029]

[0030] Wherein, W represents the characteristic factor, E represents the Young's modulus of the pipe to be bent, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and t represents the wall thickness.

[0031] Further, when the judgment unit determines whether to adjust the gas supply rate according to the comparison result, it includes:

[0032] When all historical characteristic factors in the historical bending data are different from the characteristic factor, the air supply rate is not adjusted, and the air supply rate is used as the final air supply rate, and the characteristic factor and the final air supply rate are recorded in the historical bending data;

[0033] When there is data identical to the characteristic factor in the historical characteristic factors in the historical bending data, comparing the air supply rate of the cylinder with the historical final air supply rate;

[0034] When the air supply rate of the cylinder is consistent with the historical final air supply rate, the judgment unit determines not to adjust the air supply rate and uses the air supply rate as the final air supply rate;

[0035] When the air supply rate of the cylinder is inconsistent with a historical final air supply rate, the determination unit determines to adjust the air supply rate.

[0036] Further, when the judgment unit determines to adjust the gas supply rate, it includes:

[0037] The historical characteristic factor in the historical bending data and the historical final air supply rate corresponding to the characteristic factor are taken as an adjustment set, and the data in the adjustment set where the historical final air supply rate is greater than the air supply rate is taken as an increase set, and the data in the adjustment set where the historical final air supply rate is less than the air supply rate is taken as a decrease set. The air supply rate is adjusted according to the increase set and the decrease set to obtain the final air supply rate.

[0038] Furthermore, the air supply rate is calculated by the following formula:

[0039] ;

[0040] Among them, Qz represents the final gas supply rate, n is the number of historical final gas supply rates in the increase set, Qi is the i-th historical final gas supply rate in the increase set, Q0 represents the gas supply rate, m is the number of historical final gas supply rates in the decrease set, and Qj is the j-th historical final gas supply rate in the decrease set.

[0041] Further, the judging unit judges whether to turn on the pressing motor according to the temperature distribution diagram, and determines the working time of the pressing motor when it is determined to turn on the pressing motor, including:

[0042] The judgment unit obtains a temperature difference between the highest temperature and the lowest temperature according to the temperature distribution diagram, compares the temperature difference with a temperature difference threshold, and judges whether to turn on the pressing motor according to the comparison result;

[0043] When the temperature difference is greater than the temperature difference threshold, the judgment unit determines to turn on the pressing motor, and determines the working time of the pressing motor according to the temperature difference, and the working time of the pressing motor is proportional to the temperature difference;

[0044] When the temperature difference is less than or equal to the temperature difference threshold, the determination unit determines not to turn on the pressing motor.

[0045] Compared with the prior art, the beneficial effect of the present invention is that: by integrating multiple devices and sensors, the automatic and intelligent control of the pipe bending process is realized. It includes a horizontal fixed platform, a horizontal moving device, a first and a second pressure device, a bending device and a control module. The surface temperature of the pipe to be bent is detected in real time by a temperature sensor and an infrared sensor. The control module automatically determines whether the bending action is turned on or off according to the temperature data, and accurately controls the operation of the power supply motor, the pneumatic unit and the clamping motor. The accuracy and consistency of the bending process are improved, the complexity and labor intensity of manual operation are reduced, and at the same time, it has a strong adaptability to pipes of different materials and sizes, improves production efficiency and product quality, and reduces material waste and quality instability. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0047] Figure 1 A three-dimensional view of a pipe intelligent bending and forming device provided in an embodiment of the present invention;

[0048] Figure 2 A front view of the intelligent bending and forming device for pipes provided in an embodiment of the present invention;

[0049] Figure 3 A cross-sectional view of a first pressure device in a pipe intelligent bending and forming device provided in an embodiment of the present invention;

[0050] Figure 4 This is a functional diagram of a control module in the intelligent pipe bending and forming device provided in an embodiment of the present invention.

[0051] 110. Horizontal fixed platform; 121. Horizontal displacement slide; 122. Power supply motor; 131. Support block; 132. Sliding assembly; 1331. Cylinder; 1332. Pressure gauge; 1333. Pneumatic slide; 140. Connector; 141. First connecting rod; 142. Second connecting rod; 143. Third connecting rod; 151. Rotating block; 152. First bracket; 153. Second bracket; 154. Limit rod; 1551. Fixed end; 1552. Lead screw; 1553. Clamping motor; 161. Support frame; 162. Bending mold; 170. Control module; 180. Infrared sensor; 190. Temperature sensor. DETAILED DESCRIPTION

[0052] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] In some embodiments of the present application, see Figure 1-3 As shown, a pipe intelligent bending and forming device includes: a horizontal fixed platform 110, a horizontal moving device, a first pressure device, a connecting piece 140, a second pressure device, a bending device and a control module 170. Among them,

[0054] The horizontal moving device is fixed on the left side of the horizontal fixed platform 110, and the horizontal moving device includes a horizontal displacement slide 121 and a power supply motor 122;

[0055] The first pressure device is fixed on the slider of the horizontal displacement slide 121, and the first pressure device includes a support block 131, a pneumatic unit and a sliding assembly 132. The middle of the support block 131 is a hollow structure, and the sliding assembly 132 is slidably arranged in the support block 131; the pneumatic unit includes a cylinder 1331, a pressure gauge 1332 and a pneumatic slide rod 1333, and the pneumatic slide rod 1333 is fixed on the left side of the support block 131. The other end of the pneumatic slide rod 1333 is fixedly connected to the sliding assembly 132, and the cylinder 1331 is used to provide compressed air to the pneumatic slide rod 1333;

[0056] The left end of the connecting member 140 is connected to the sliding assembly 132 through the first connecting rod 141, the lower end of the connecting member 140 is connected to the horizontal fixed platform 110 through the second connecting rod 142, and the upper end of the connecting member 140 is connected to the second pressure device through the third connecting rod 143;

[0057] The second pressure device includes a rotating block 151, a first bracket 152, a second bracket 153, a limiting rod 154 and a pressing unit; a plurality of limiting rods 154 are provided, and two are provided for each of the first bracket 152 and the second bracket 153, a limiting rod 154 is provided between the two first brackets 152, and a limiting rod 154 is provided between the two second brackets 153, and the pressing unit is fixedly provided on the upper part of the first bracket 152 and the second bracket 153, and the pressing unit includes a fixed end 1551, a lead screw 1552 and a pressing motor 1553;

[0058] The bending device includes a support frame 161 and a bending die 162. A plurality of temperature sensors 190 are provided on the side of the bending die 162 that contacts the pipe to be bent. The temperature sensors 190 are used to detect the surface temperature of the pipe to be bent. An infrared sensor 180 is provided on one side of the bending die 162.

[0059] The control module 170 is electrically connected to the power supply motor 122, the pneumatic unit, the clamping motor 1553, the infrared sensor 180 and the temperature sensor 190. The control module 170 is used to determine whether to start the bending action according to the temperature data of the temperature sensor 190, and control the operation of the power supply motor 122, the pneumatic unit and the clamping motor 1553 according to the surface temperature.

[0060] Specifically, when the pipe to be bent moves between the bending device and the second pressure device, the temperature of the temperature sensor 190 provided on the contact surface of the bending die 162 in the bending device and the pipe to be bent rises, and the bending action is started. The control module 170 controls the functional motor in the horizontal moving device to rotate, driving the slider of the horizontal displacement slide 121 to move horizontally, and the first pressure device moves horizontally to the right to push the connecting member 140 to move rightward, thereby driving the second pressure device to move upward, and the pipe to be bent is pushed under the bending die 162 of the bending device. At this time, the functional motor stops rotating, and the cylinder 1331 starts to run. The cylinder 1331 pushes the pneumatic slide rod 1333 to extend. During the movement of the pneumatic slide rod 1333, the air supply rate of the cylinder 1331 can be obtained through the pressure gauge 1332, and the sliding assembly 132 is pushed to slide in the support block 131, and the connecting member 140 is pushed to continue to move. Due to the restrictions of the first bracket 152, the second bracket 153 and the limit rod 154 in the second pressure device, the pipe to be bent is bent along the radius of the bending die 162 in the bending device. A quick-release structure is used between the bending die 162 and the support frame 161 to achieve rapid replacement of the bending die 162. When the pipe to be bent completes the initial bending, the cylinder 1331 stops supplying air, and the control module 170 can also control the clamping motor 1553 of the clamping unit in the second pressure device to rotate, driving the screw 1552 to rotate, so that the fixed end 1551 moves toward the side of the clamping motor 1553, thereby making the first bracket 152 and the second bracket 153 approach the middle. Under the action of the limiting rod 154, the pipe to be bent is more closely fitted to the bending mold 162, thereby further improving the bending accuracy of the pipe.

[0061] It is understandable that by integrating multiple devices and sensors, the automatic and intelligent control of the pipe bending process is realized. By real-time monitoring of the pipe surface temperature and adjusting the bending action according to the temperature data, the accuracy and consistency of the bending process are improved. Compared with traditional methods, the complexity and labor intensity of manual operation are reduced, and it has a strong adaptability to pipes of different materials and sizes, improving production efficiency and product quality, and reducing material waste and quality instability.

[0062] In some embodiments of the present application, see Figure 4 As shown, the control module 170 includes: a collection unit, a processing unit and a judgment unit;

[0063] The acquisition unit is configured to acquire temperature data of the bottom temperature sensor 190, compare the temperature data with the ambient temperature, and determine whether to start the bending action according to the comparison result;

[0064] The processing unit is configured to, when the acquisition unit determines to start the bending action, control the power supply motor 122 to rotate, and collect the temperature data of the infrared sensor 180 and the temperature data of the bottom temperature sensor 190, and determine whether to start the cylinder 1331 and stop the power supply motor 122 according to the temperature data of the infrared sensor 180 and the temperature data of the bottom temperature sensor 190; the processing unit is also configured to, when it is determined to start the cylinder 1331, determine the air supply rate of the cylinder 1331 according to the temperature data of the bottom temperature sensor 190;

[0065] The judgment unit is configured to collect the real-time temperature of the temperature sensor 190, determine the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, compare the characteristic factor with the historical bending data, and determine whether to adjust the air supply rate according to the comparison result to determine the final air supply rate of the cylinder 1331;

[0066] The judgment unit is also configured to collect temperature data of all temperature sensors 190 when the bending is completed at the final air supply rate, establish a temperature distribution diagram of the temperature data and position, determine whether to turn on the clamping motor 1553 according to the temperature distribution diagram, and determine the working time of the clamping motor 1553 when it is determined to turn on the clamping motor 1553.

[0067] Specifically, the acquisition unit obtains the temperature data of the bottom temperature sensor 190, compares it with the ambient temperature, and determines whether to start the bending action. When the acquisition unit determines to start the bending action, the processing unit controls the power supply motor 122 to rotate and pushes the horizontal displacement slide 121 to move. The processing unit continues to collect data from the infrared sensor 180 and the bottom temperature sensor 190, and determines whether to start the cylinder 1331 and stop the power supply motor 122 based on the data. When the cylinder 1331 is started, the air supply rate of the cylinder 1331 is determined based on the data from the bottom temperature sensor 190. The judgment unit calculates the characteristic factor based on the real-time temperature, the wall thickness of the pipe and the bending radius. The characteristic factor is compared with the historical data to determine whether to adjust the air supply rate, and finally determine the air supply rate of the cylinder 1331. After the bending is completed, the judgment unit collects data from all temperature sensors 190 and establishes a temperature distribution map. According to the distribution map, it is determined whether to start the clamping motor 1553 and determine the working time of the clamping motor 1553 to further improve the bending accuracy.

[0068] It is understandable that the automation level and precision control of the pipe bending process are improved through temperature monitoring and real-time adjustment mechanisms. The multi-level data acquisition and processing mechanism of the control module 170 ensures the precise start and stop of the bending action, and dynamically adjusts the air supply rate of the cylinder 1331 according to the actual situation, thereby minimizing errors and material waste. In addition, by establishing a temperature distribution map, the operating time of the clamping motor 1553 is optimized to ensure the final molding quality of the pipe. Efficient and stable processing of pipes of different materials and sizes is achieved, improving production efficiency and product consistency.

[0069] In some embodiments of the present application, the acquisition unit determines whether to start the bending action based on the comparison result, including: when the temperature data is greater than the ambient temperature, the acquisition unit determines to start the bending action; when the temperature data is less than or equal to the ambient temperature, the acquisition unit determines not to start the bending action.

[0070] In some embodiments of the present application, when the processing unit determines whether to start the cylinder 1331 and stop the power supply motor 122 according to the temperature data of the infrared sensor 180 and the temperature data of the bottom temperature sensor 190, it includes:

[0071] When the temperature data of the infrared sensor 180 is equal to the temperature data of the bottom temperature sensor 190, the processing unit determines to start the cylinder 1331 and stop the power supply motor 122; when the temperature data of the infrared sensor 180 is greater than the temperature data of the bottom temperature sensor 190, the processing unit determines to continue running the power supply motor 122 without starting the cylinder 1331.

[0072] In some embodiments of the present application, when the processing unit determines the air supply rate of the cylinder according to the temperature data of the bottom temperature sensor 190, it includes:

[0073]

[0074] Among them, Q represents the air supply rate of the cylinder, A represents the effective area of ​​the cylinder, E represents the Young's modulus of the pipe to be bent, t represents the wall thickness, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and k represents a constant.

[0075] It is understandable that accurate temperature monitoring and real-time data comparison ensure accurate control of the bending action. When the temperature conditions are met, it can respond quickly and start the bending action to ensure the efficiency of the production process. By comparing the data of the infrared sensor 180 and the bottom temperature sensor 190, the timing of starting the cylinder 1331 and stopping the power supply motor 122 is further optimized to avoid unnecessary energy consumption and erroneous operations. The air supply rate calculation takes into account the material characteristics and actual operating conditions of the pipe fittings to ensure accurate adjustment of the air supply rate of the cylinder 1331. The automation level and precision control capability of the bending process are improved, so that the equipment performs well when processing pipe fittings of different materials and sizes, and improves production efficiency and product quality.

[0076] In some embodiments of the present application, when the judgment unit determines the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, the characteristic factor is calculated by the following formula:

[0077]

[0078] Wherein, W represents the characteristic factor, E represents the Young's modulus of the pipe to be bent, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and t represents the wall thickness.

[0079] In some embodiments of the present application, when the judgment unit determines whether to adjust the gas supply rate according to the comparison result, it includes:

[0080] When the historical characteristic factors in the historical bending data are all different from the characteristic factors, the air supply rate is not adjusted, and the air supply rate is used as the final air supply rate, and the characteristic factors and the final air supply rate are entered into the historical bending data; when there is data identical to the characteristic factors in the historical characteristic factors in the historical bending data, the air supply rate of the cylinder is compared with the historical final air supply rate; when the air supply rate of the cylinder is consistent with the historical final air supply rate, the judgment unit determines that the air supply rate is not adjusted, and the air supply rate is used as the final air supply rate; when the air supply rate of the cylinder is inconsistent with the historical final air supply rate, the judgment unit determines that the air supply rate is adjusted.

[0081] In some embodiments of the present application, when the judgment unit determines to adjust the air supply rate, it includes: taking the historical characteristic factor in the historical bending data and the historical final air supply rate corresponding to the characteristic factor as an adjustment set, and taking the data in the adjustment set in which the historical final air supply rate is greater than the air supply rate as an increase set, and taking the data in the adjustment set in which the historical final air supply rate is less than the air supply rate as a decrease set, adjusting the air supply rate according to the increase set and the decrease set to obtain the final air supply rate.

[0082] In some embodiments of the present application, the air supply rate is calculated by the following formula:

[0083] ;

[0084] Among them, Qz represents the final gas supply rate, n is the number of historical final gas supply rates in the increase set, Qi is the i-th historical final gas supply rate in the increase set, Q0 represents the gas supply rate, m is the number of historical final gas supply rates in the decrease set, and Qj is the j-th historical final gas supply rate in the decrease set.

[0085] It is understandable that by introducing the calculation of characteristic factors and comparing historical data, the precise adjustment of the air supply rate is achieved, ensuring the efficiency and stability of the bending process. The characteristic factor comprehensively considers the physical properties of the pipe and the real-time temperature data, making the calculation of the air supply rate more reasonable. Through the dynamic adjustment mechanism of historical data, the current operating parameters can be optimized according to previous successful cases, improving the bending quality and consistency. The final calculation formula of the air supply rate combines the data of the increase and decrease sets to ensure the balanced adjustment of the air supply rate and avoid errors caused by a single historical data. It improves the intelligence level and adaptability of the pipe bending and forming device, is suitable for pipes of different materials and sizes, and improves production efficiency and product quality.

[0086] In some embodiments of the present application, the judgment unit judges whether to turn on the clamping motor 1553 according to the temperature distribution map, and determines the working time of the clamping motor 1553 when it is determined to turn on the clamping motor 1553, including: the judgment unit obtains the temperature difference between the highest temperature and the lowest temperature according to the temperature distribution map, compares the temperature difference with the temperature difference threshold, and judges whether to turn on the clamping motor 1553 according to the comparison result;

[0087] Specifically, when the temperature difference is greater than the temperature difference threshold, the judgment unit determines to turn on the clamping motor 1553, and determines the working time of the clamping motor 1553 according to the temperature difference. The working time of the clamping motor 1553 is proportional to the temperature difference; when the temperature difference is less than or equal to the temperature difference threshold, the judgment unit determines not to turn on the clamping motor 1553.

[0088] Specifically, for example: the real-time temperature data collected by the bottom temperature sensor 190 and the infrared sensor 180 are as follows: maximum temperature: 300°C, minimum temperature: 200°C. Calculate the temperature difference: temperature difference = maximum temperature - minimum temperature = 300°C - 200°C = 100°C, and the set temperature difference threshold is 50°C. Determine whether to turn on the clamping motor 1553, and compare the temperature difference with the temperature difference threshold: 100°C>50°C. Since the temperature difference is greater than the temperature difference threshold, the judgment unit determines to turn on the clamping motor 1553. Determine the working time of the clamping motor 1553: Assume that the proportional coefficient between the working time of the clamping motor 1553 and the temperature difference is 0.1 seconds / °C. The working time of the clamping motor 1553 = 100°C*0.1 seconds / °C=10 seconds. Therefore, in this case, the clamping motor 1553 will be turned on and run for 10 seconds to ensure that the pipe fits the bending mold 162.

[0089] It can be understood that by introducing the comparison mechanism of the temperature distribution diagram and the temperature difference threshold, the quality problem caused by uneven temperature distribution during the bending process of the pipe fittings is effectively solved. The temperature distribution diagram provides detailed temperature data, which can accurately judge the bending state of the pipe fittings. When the pipe to be bent is bent and is completely in contact with the surface of the bending mold 162, the temperature difference of the temperature sensor 190 arranged on the surface of the bending mold 162 should be within the temperature difference threshold. When the temperature difference is greater than the temperature difference threshold, it means that the pipe to be bent is not completely in contact with the bending mold 162. The clamping motor 1553 is automatically turned on and the working time of the clamping motor 1553 is determined according to the temperature difference, ensuring that the pipe fittings are tightly in contact with the mold and improving the bending accuracy. On the contrary, when the temperature difference is within a safe range, unnecessary clamping operations are avoided, saving energy. The dynamic adjustment mechanism improves the automation level and intelligent control capability of the bending process, and improves production efficiency and product quality.

[0090] In the above-mentioned embodiment, the automatic and intelligent control of the pipe bending process is realized by integrating a variety of devices and sensors. It includes a horizontal fixed platform, a horizontal moving device, a first and a second pressure device, a bending device and a control module. The surface temperature of the pipe to be bent is detected in real time by a temperature sensor and an infrared sensor. The control module automatically determines whether the bending action is turned on or off according to the temperature data, and accurately controls the operation of the power supply motor, the pneumatic unit and the clamping motor. The accuracy and consistency of the bending process are improved, the complexity and labor intensity of manual operation are reduced, and at the same time, it has a strong adaptability to pipes of different materials and sizes, improves production efficiency and product quality, and reduces material waste and quality instability.

[0091] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0092] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0093] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0094] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A pipe intelligent bending and forming device, characterized in that: include: Horizontal fixed platform; A horizontal moving device is fixed on the left side of the horizontal fixed platform, and the horizontal moving device includes a horizontal displacement slide and a power supply motor; A first pressure device is fixed on the slider of the horizontal displacement slide, and the first pressure device includes a support block, a pneumatic unit and a sliding assembly. The middle of the support block is a hollow structure, and the sliding assembly is slidably arranged in the support block; the pneumatic unit includes a cylinder, a pressure gauge and a pneumatic slide rod, the pneumatic slide rod is fixed on the left side of the support block, and the other end of the pneumatic slide rod is fixedly connected to the sliding assembly, and the cylinder is used to provide compressed air to the pneumatic slide rod; A connecting member, wherein the left end of the connecting member is connected to the sliding assembly through a first connecting rod, the lower end of the connecting member is connected to the horizontal fixed platform through a second connecting rod, and the upper end of the connecting member is connected to the second pressure device through a third connecting rod; The second pressure device includes a rotating block, a first bracket, a second bracket, a limiting rod and a clamping unit; the limiting rods are provided in a plurality, the first bracket and the second bracket are provided with two respectively, the limiting rod is provided between the two first brackets, and the limiting rod is provided between the two second brackets, the clamping unit is fixedly provided on the upper parts of the first bracket and the second bracket, and the clamping unit includes a fixed end, a lead screw and a clamping motor; The bending device comprises a support frame and a bending die, wherein a surface of the bending die in contact with the pipe to be bent is provided with a plurality of temperature sensors, wherein the temperature sensors are used to detect the surface temperature of the pipe to be bent, and an infrared sensor is provided on one side of the bending die; The control module is electrically connected to the power supply motor, the pneumatic unit, the clamping motor, the infrared sensor and the temperature sensor. The control module is used to determine whether to start the bending action according to the temperature data of the temperature sensor, and to control the operation of the power supply motor, the pneumatic unit and the clamping motor according to the surface temperature.

2. The intelligent bending and forming device for pipe fittings according to claim 1 is characterized in that: The control module includes: a collection unit, a processing unit and a judgment unit; The acquisition unit is configured to acquire temperature data from a bottom temperature sensor, compare the temperature data with the ambient temperature, and determine whether to start the bending action according to the comparison result; The processing unit is configured to, when the acquisition unit determines to start the bending action, control the power supply motor to rotate, and acquire the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor, and determine whether to start the cylinder and stop the power supply motor according to the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor; the processing unit is also configured to, when it is determined to start the cylinder, determine the air supply rate of the cylinder according to the temperature data of the bottom temperature sensor; The judgment unit is configured to collect the real-time temperature of the temperature sensor, determine the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, compare the characteristic factor with the historical bending data, and determine whether to adjust the air supply rate according to the comparison result to determine the final air supply rate of the cylinder; The judgment unit is also configured to collect temperature data of all the temperature sensors when the bending is completed at the final air supply rate, establish a temperature distribution diagram of the temperature data and position, determine whether to turn on the clamping motor according to the temperature distribution diagram, and determine the working time of the clamping motor when it is determined to turn on the clamping motor.

3. The intelligent bending and forming device for pipe fittings according to claim 2 is characterized in that: When the acquisition unit determines whether to start the bending action according to the comparison result, it includes: When the temperature data is greater than the ambient temperature, the acquisition unit determines to start the bending action; When the temperature data is less than or equal to the ambient temperature, the acquisition unit determines not to start the bending action.

4. The intelligent bending and forming device for pipe fittings according to claim 2, characterized in that: When the processing unit determines whether to start the cylinder and stop the power supply motor according to the temperature data of the infrared sensor and the temperature data of the bottom temperature sensor, it includes: When the temperature data of the infrared sensor is equal to the temperature data of the bottom temperature sensor, the processing unit determines to start the cylinder and stop the power supply motor; When the temperature data of the infrared sensor is greater than the temperature data of the bottom temperature sensor, the processing unit determines that the power supply motor continues to operate and does not start the cylinder.

5. The intelligent bending and forming device for pipe fittings according to claim 4 is characterized in that: When the processing unit determines the air supply rate of the cylinder according to the temperature data of the bottom temperature sensor, it includes: ； Among them, Q represents the air supply rate of the cylinder, A represents the effective area of ​​the cylinder, E represents the Young's modulus of the pipe to be bent, t represents the wall thickness, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and k represents a constant.

6. The intelligent bending and forming device for pipe fittings according to claim 2, characterized in that: When the judgment unit determines the characteristic factor according to the real-time temperature, the wall thickness of the pipe to be bent, and the bending radius, the characteristic factor is calculated by the following formula: ； Wherein, W represents the characteristic factor, E represents the Young's modulus of the pipe to be bent, T represents the temperature data of the bottom temperature sensor, T0 represents the ambient temperature, α represents the linear expansion coefficient of the pipe to be bent, R represents the target bending radius, and t represents the wall thickness.

7. The intelligent bending and forming device for pipe fittings according to claim 6, characterized in that: When the judgment unit determines whether to adjust the gas supply rate according to the comparison result, it includes: When all historical characteristic factors in the historical bending data are different from the characteristic factor, the air supply rate is not adjusted, and the air supply rate is used as the final air supply rate, and the characteristic factor and the final air supply rate are recorded in the historical bending data; When there is data identical to the characteristic factor in the historical characteristic factor in the historical bending data, comparing the air supply rate of the cylinder with the historical final air supply rate; When the air supply rate of the cylinder is consistent with the historical final air supply rate, the judgment unit determines not to adjust the air supply rate and uses the air supply rate as the final air supply rate; When the air supply rate of the cylinder is inconsistent with a historical final air supply rate, the determination unit determines to adjust the air supply rate.

8. The intelligent bending and forming device for pipe fittings according to claim 7, characterized in that: When the judging unit determines to adjust the gas supply rate, it includes: The historical characteristic factor in the historical bending data and the historical final air supply rate corresponding to the characteristic factor are taken as an adjustment set, and the data in the adjustment set where the historical final air supply rate is greater than the air supply rate is taken as an increase set, and the data in the adjustment set where the historical final air supply rate is less than the air supply rate is taken as a decrease set. The air supply rate is adjusted according to the increase set and the decrease set to obtain the final air supply rate.

9. The intelligent bending and forming device for pipe fittings according to claim 8, characterized in that: The air supply rate is calculated by the following formula: ； Among them, Qz represents the final gas supply rate, n is the number of historical final gas supply rates in the increase set, Qi is the i-th historical final gas supply rate in the increase set, Q0 represents the gas supply rate, m is the number of historical final gas supply rates in the decrease set, and Qj is the j-th historical final gas supply rate in the decrease set.

10. The intelligent bending and forming device for pipe fittings according to claim 2, characterized in that: The judging unit judges whether to turn on the pressing motor according to the temperature distribution diagram, and determines the working time of the pressing motor when it is determined to turn on the pressing motor, including: The judgment unit obtains a temperature difference between the highest temperature and the lowest temperature according to the temperature distribution diagram, compares the temperature difference with a temperature difference threshold, and judges whether to turn on the pressing motor according to the comparison result; When the temperature difference is greater than the temperature difference threshold, the judgment unit determines to turn on the pressing motor, and determines the working time of the pressing motor according to the temperature difference, and the working time of the pressing motor is proportional to the temperature difference; When the temperature difference is less than or equal to the temperature difference threshold, the determination unit determines not to turn on the pressing motor.

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