Temperature control system and method for deformation process of titanium alloy profiles

Abstract

This invention discloses a temperature control system and method for measuring the deformation process of titanium alloy profiles. The system includes: a temperature acquisition module, a position sensor, a control module, and a heating module. The temperature acquisition module includes a first temperature acquisition unit and a motor; the motor drives the first temperature acquisition unit to move; the heating module heats the titanium alloy profile according to a heating power signal and a heating time to achieve hot bending of the titanium alloy profile; the position sensor acquires the positions of each cutting point during the hot bending process of the titanium alloy profile in real time and sends each cutting point position to the control module; the control module drives the motor to move according to each cutting point position so that the first temperature acquisition unit acquires the temperature at each cutting point position in real time; the control module outputs an adjustment control signal to the heating module according to the temperature at each cutting point position and the target cutting point position temperature, so that the heating module adjusts the heating power signal according to the adjustment control signal. This invention achieves accurate monitoring of the maximum temperature and precise control of the overall temperature uniformity.

Description

Technical Field

[0001] The present invention relates to a temperature control technology, and more particularly to a temperature control system and method for titanium alloy profiles during deformation. Background Technology

[0002] Titanium alloy profiles, with their high specific strength, corrosion resistance, and lack of potential corrosion compared to composite materials, are widely used in aerospace as load-bearing structural members. Due to their difficulty in forming at room temperature, hot forming processes are widely employed. Hot stretching and bending significantly improves the internal stress state of the material (the profile exhibits tensile stress overall, avoiding compression wrinkling) and offers high forming accuracy. However, complex irregularly shaped titanium alloy curved components typically have large, bifurcated, and asymmetrical cross-sectional geometries, resulting in a gradient stress distribution in the formed section (tensile stress on the side away from the mold and compressive stress on the side close to the mold), leading to significant springback after unloading. In recent years, a composite forming process combining traditional hot stretching and bending with thermal creep has been developed. This significantly reduces residual stress within the part during the creep stage, minimizing springback and enabling precise one-time forming of complex irregularly shaped titanium alloy profiles.

[0003] The yield strength and flow stress of titanium alloys are significantly affected by temperature, leading to differences in microstructure and properties. Therefore, temperature stability and uniformity are crucial in the hot stretching, bending, and creep composite forming process of titanium alloy extruded profiles. The profiles are long and have complex cross-sections, resulting in complex heat transfer during the stretching and bending process. One side experiences intense contact heat transfer with the die, while the other side only exchanges heat with the air. This significant difference in heat transfer behavior causes temperature non-uniformity along the length, with the highest temperature occurring at the tangent point due to the small heat transfer space, where the non-uniformity is particularly pronounced. Figure 2 As shown. Furthermore, the unevenness of the original extruded profile's microstructure significantly affects the temperature uniformity across different areas of the profile, causing overall temperature fluctuations, which are more pronounced during the creep stage, such as... Figure 3 As shown, uneven temperature distribution during the forming process can lead to uneven deformation, making it impossible to accurately track and measure the maximum temperature. This results in a certain difference between the actual maximum temperature and the preset target temperature, causing excessive temperature fluctuations and exacerbating the unevenness of the microstructure. In severe cases, large deformations may even occur, causing premature necking of the specimen and affecting the forming accuracy and mechanical properties of the final part.

[0004] In recent years, the hot forming process of titanium alloy profiles has received increasing attention, and the control of temperature uniformity and stability has become an important issue in actual production. While current domestic tensile bending testing equipment possesses certain heating and control functions, the tangent point of the profile is affected by factors such as part geometry and process parameters. Conventional static temperature measurement methods cannot accurately identify the highest temperature of profiles with angular differences, thus lacking sufficient precision in monitoring the highest temperature and controlling overall temperature uniformity. Summary of the Invention

[0005] This invention provides a temperature control system and method for titanium alloy profiles during deformation, so as to achieve accurate monitoring of the highest temperature and precise control of overall temperature uniformity.

[0006] In a first aspect, embodiments of the present invention provide a temperature measurement and control system for the deformation process of titanium alloy profiles. The system includes: a heating module, a position sensor, a temperature acquisition module, and a control module; the heating module, the position sensor, and the temperature acquisition module are all electrically connected to the control module.

[0007] The temperature acquisition module includes a first temperature acquisition unit and a motor; the motor carries the first temperature acquisition unit.

[0008] The heating module is used to heat the titanium alloy profile according to the heating power signal and heating time to make the titanium alloy profile hot-bent.

[0009] The position sensor is used to acquire the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time, and send the positions of each cutting point to the control module.

[0010] The control module is used to drive the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point position in real time during the hot bending forming of the titanium alloy profile.

[0011] The control module is further configured to output an adjustment control signal to the heating module based on the temperature at each tangent point and the target tangent point, so that the heating module adjusts the heating power signal according to the adjustment control signal.

[0012] Optionally, the temperature acquisition module further includes a second temperature acquisition unit;

[0013] The heating module is also used to heat the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile.

[0014] The second temperature acquisition unit is used to acquire the temperature of each part of the titanium alloy profile during the pre-stretching process and to feed back the temperature of each part to the control module;

[0015] The control module is also used to determine the location of abnormal temperature based on the temperature of each part.

[0016] Optionally, it may also include a cooling module; the cooling module is electrically connected to the control module;

[0017] The control module is also used to control the cooling module to start so that the temperature measurement and control system is in a cold circulation state.

[0018] Optionally, the heating module includes a switching power supply unit and a power control unit; the power control unit is electrically connected to the switching power supply unit.

[0019] The power control unit is used to adjust the heating power signal output by the switching power supply unit according to the adjustment control signal output by the control module.

[0020] Optionally, the position sensor is also used to detect whether the deformation of the titanium alloy profile remains within a preset deformation range within a preset time period of the heating power signal output;

[0021] The second temperature acquisition unit is also used to acquire the temperature at various parts of the titanium alloy profile when the deformation of the titanium alloy profile is maintained at a preset deformation, and to feed back the coordinates of the part corresponding to the highest temperature to the control module.

[0022] The control module is also used to drive the motor to move according to the coordinates of the part corresponding to the highest temperature so that the first temperature acquisition unit can re-acquire the highest temperature of the part coordinates of the titanium alloy profile.

[0023] The control module is further configured to re-acquire the highest temperature and target highest temperature of the coordinates of the part of the titanium alloy profile by the first temperature acquisition unit and output a control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal.

[0024] Secondly, embodiments of the present invention also provide a temperature control method for the deformation process of titanium alloy profiles. This method is applied to the temperature control system for the deformation process of titanium alloy profiles described in the first aspect above. The temperature control method includes:

[0025] The heating module heats the titanium alloy profile according to the heating power signal and heating time to enable the titanium alloy profile to be hot-bent.

[0026] The position sensor acquires the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time, and sends each cutting point position to the control module;

[0027] The control module drives the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point position in real time during the hot bending forming of the titanium alloy profile.

[0028] The control module outputs a control signal to the heating module based on the temperature at each cutting point and the temperature at the target cutting point, so that the heating module adjusts the heating power signal according to the adjustment control signal.

[0029] Optionally, the temperature acquisition module further includes a second temperature acquisition unit; the second temperature acquisition unit is used to acquire the temperature of various parts of the titanium alloy profile during the hot drawing and bending process of the titanium alloy profile.

[0030] The heating module heats the titanium alloy profile according to the heating power signal and heating time, and before the titanium alloy profile is hot-stretched and bent, it also includes:

[0031] The heating module heats the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile.

[0032] The control module receives and determines the abnormal temperature locations based on the temperatures of various parts of the titanium alloy profile during the hot pre-stretching process collected by the second temperature acquisition unit.

[0033] Optional, also includes:

[0034] Within a preset time period of the heating power signal output, the position sensor detects whether the deformation of the titanium alloy profile remains at a preset deformation.

[0035] The second temperature acquisition unit acquires the temperature at various parts of the titanium alloy profile and feeds back the coordinates of the part corresponding to the highest temperature to the control module;

[0036] The control module drives the motor to move according to the coordinates of the part corresponding to the highest temperature. The first temperature acquisition unit re-acquires and feeds back the highest temperature of the part coordinates of the titanium alloy profile to the control module.

[0037] The control module re-acquires and feeds back the highest temperature and target highest temperature of the coordinates of the part of the titanium alloy profile based on the first temperature acquisition unit, and outputs a control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal;

[0038] The acquisition accuracy of the first temperature acquisition unit is greater than that of the second temperature acquisition unit.

[0039] Optionally, the temperature measurement system may also include a cooling module;

[0040] The temperature measurement and control method further includes:

[0041] The control module controls the cooling module to start, so that the temperature measurement and control system is in a cold circulation state.

[0042] Optionally, the heating module includes a switching power supply unit and a power control unit;

[0043] The control module outputs a control signal to the heating module based on the temperature at each tangent point and the target tangent point temperature, so that the heating module adjusts the heating power signal according to the adjustment control signal, including:

[0044] The control module outputs an adjustment control signal to the power control unit based on the temperature at each tangent point and the target tangent point, so that the power control unit adjusts the output heating power signal of the switching power supply unit according to the adjustment control signal.

[0045] In this embodiment of the invention, a heating module heats a titanium alloy profile according to a heating power signal and a heating time to achieve hot bending of the titanium alloy profile. A position sensor acquires the positions of each cutting point during the hot bending process of the titanium alloy profile in real time and sends each cutting point position to the control module. Then, the control module drives the motor to move according to each cutting point position so that the first temperature acquisition unit acquires the temperature of each cutting point position during the hot bending process of the titanium alloy profile in real time and receives the temperature of each cutting point position. Based on the temperature of each cutting point position and the target cutting point position temperature, the control module outputs an adjustment control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal. In this way, this solution achieves accurate monitoring of the highest temperature at each cutting point position and precise control of the overall temperature uniformity. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of a temperature measurement and control system for a titanium alloy profile during deformation, provided in an embodiment of the present invention.

[0047] Figure 2 This is a schematic diagram of the structure of a titanium alloy profile before hot drawing and bending, provided in an embodiment of the present invention;

[0048] Figure 3 yes Figure 2 A schematic diagram of the structure of a titanium alloy profile after hot drawing and bending.

[0049] Figure 4 This is a schematic diagram of another temperature measurement and control system for the deformation process of titanium alloy profiles provided in an embodiment of the present invention;

[0050] Figure 5This is a schematic diagram of the structure of another temperature measurement and control system for titanium alloy profile deformation process provided in an embodiment of the present invention;

[0051] Figure 6 This invention provides a method for temperature measurement and control during the deformation process of titanium alloy profiles.

[0052] Figure 7 This is another temperature control method for the deformation process of titanium alloy profiles provided in this embodiment of the invention. Detailed Implementation

[0053] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0054] Figure 1 This is a schematic diagram of the structure of a temperature measurement and control system for the deformation process of a titanium alloy profile provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the system includes: a heating module 10, a position sensor 20, a temperature acquisition module 30, and a control module 40; the heating module 10, the position sensor 20, and the temperature acquisition module 30 are all electrically connected to the control module 40; the temperature acquisition module 30 includes a first temperature acquisition unit 31 and a motor 32; the motor 32 drives the first temperature acquisition unit 31 to move; the heating module 10 is used to heat the titanium alloy profile according to the heating power signal and the heating time to make the titanium alloy profile hot-bent; the position sensor 20 is used to acquire the positions of each cutting point in the hot-bending process of the titanium alloy profile in real time and send each cutting point position to the control module 40; the control module 40 is used to drive the motor 32 to move according to each cutting point position so that the first temperature acquisition unit 31 can acquire the temperature of each cutting point position in real time during the hot-bending process of the titanium alloy profile; the control module 40 is also used to output an adjustment control signal to the heating module according to the temperature of each cutting point position and the target cutting point position temperature so that the heating module 10 adjusts the heating power signal according to the adjustment control signal.

[0055] in, Figure 2 This is a schematic diagram of the structure of a titanium alloy profile before hot drawing and bending, provided in an embodiment of the present invention. Figure 3 yes Figure 2 A schematic diagram of the structure of a titanium alloy profile after hot drawing and bending is shown below. Figure 2 and 3As shown, the titanium alloy profile D is typically long and has a complex cross-section, resulting in complex heat transfer during bending. One side experiences intense contact heat transfer with the mold E, while the other side only exchanges heat with the air. This significant difference in heat transfer behavior causes temperature non-uniformity along the length. In particular, the highest temperature occurs at the tangent point B (where the profile is tangent to the mold E) due to the small heat transfer space, making the non-uniformity particularly pronounced. In this embodiment, the position sensor 20 collects the tangent point positions B in real time. Each tangent point position B is obtained from the center position A of the clamps on the titanium alloy profile D. Specifically, as shown... Figure 2 As shown, a rectangular coordinate system with the initial profile centroid as the origin O is established, and the X and Y axes are used during the hot bending process. Figure 3 The center position A(X1,Y1) of the clamp can be obtained by solving:

[0056]

[0057] The cutting point position B(X1',Y1') of the profile can be obtained by reversing the calculation from the center position A(X1,Y1) of the clamp:

[0058]

[0059] Where L is the original length of the titanium alloy profile, R is the profile coverage radius, α is the coverage angle during the profile bending process, δ is the elongation of the profile at angle α during the bending stage, β is the initial angle between the bending machine support arm F and the X-axis, H is the offset distance of the stretching cylinder G, and l is the distance between the centers of the two rotating shafts of the bending machine support arm F.

[0060] Position sensor 20 sends the positions of each cutting point to control module 40; control module 40 drives motor 32 to move according to the positions of each cutting point so that the first temperature acquisition unit 31 can collect the temperature of each cutting point position in real time during the hot bending forming of titanium alloy profile; specifically... Figure 4 This is a schematic diagram of another temperature control system for the deformation process of titanium alloy profiles provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the motor 32 includes an X-axis slide rail 321, a Y-axis slide rail 322, and a turntable 323. The motor 31 drives the first temperature acquisition unit 31 to move along the X-axis slide rail 321 and the Y-axis slide rail 322, and drives the first temperature acquisition unit 31 to rotate according to the angle of the turntable 323. The first temperature acquisition unit 31 reaches the preset position C(X2, Y2, a); the rotation trajectory of the preset position C(X2, Y2, a) is as follows:

[0061]

[0062] Where h is the relative distance between the first temperature acquisition unit 31 and the profile cutting point position B.

[0063] Then, the control module 40 uses the PID control principle to output an adjustment control signal to the heating module 10 based on the temperature of each tangent position and the target tangent position collected by the first temperature acquisition unit 31. This causes the heating module 10 to adjust the heating power signal according to the adjustment control signal. In this way, the scheme realizes the accurate monitoring of the highest temperature at each tangent position, achieves precise control of the overall temperature uniformity, which is beneficial to reduce the residual stress inside the profile and enhance the uniformity of the structure.

[0064] Optional, Figure 5 This is a schematic diagram of another temperature measurement and control system for the deformation process of titanium alloy profiles provided in an embodiment of the present invention. The temperature acquisition module 30 further includes a second temperature acquisition unit 33; the heating module 10 is also used to heat the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile; the second temperature acquisition unit 32 is used to acquire the temperature of each part of the titanium alloy profile during the pre-stretching process and feed the temperature of each part back to the control module 40; the control module 40 is also used to determine the abnormal temperature part according to the temperature of each part.

[0065] Before the hot bending process of the titanium alloy profile, the second temperature acquisition unit 32 collects the temperature of various parts of the titanium alloy profile during the pre-stretching process. The control module 40 then identifies abnormal temperature locations based on the temperature of each part to ensure the uniformity of the profile surface temperature before the hot bending process, thus preventing excessive stress during the hot bending process and ensuring successful hot bending. The second temperature acquisition unit 33 can be an infrared thermal imager, placed stationary on one side of the profile being bent. The infrared thermal imager converts the invisible infrared energy emitted by the profile into a visible thermal image, allowing simultaneous measurement of the temperature in multiple areas during the pre-stretching process and monitoring of temperature uniformity.

[0066] Optional, see reference Figure 5 The temperature measurement and control system also includes a cooling module 50; the cooling module 50 is electrically connected to the control module 40; the control module 40 is also used to control the cooling module 50 to start so that the temperature measurement and control system is in a cold circulation state.

[0067] The water cooling module 50 can be cooled by a pure water cooler, which has a small power consumption; or it can be cooled by an open cooling tower. Activating the water cooling module 50 before starting the temperature measurement and control system can prevent the overall temperature measurement system from overheating and improve the stability of the temperature measurement and control process.

[0068] Optional, refer to Figure 5 The heating module 10 includes a switching power supply unit 11 and a power control unit 12; the power control unit 12 is electrically connected to the switching power supply unit 11; the power control unit 12 is used to adjust the heating power signal output by the switching power supply unit 11 according to the adjustment control signal output by the control module 40.

[0069] The power control unit 12 receives the adjustment control signal output by the control module 40, and changes the current signal and current signal output by the switching power supply unit 11, thereby adjusting the output heating power signal. The switching power supply unit 11 can be a current relay, etc.

[0070] Optional, refer to Figure 5 The position sensor 10 is also used to detect whether the deformation of the titanium alloy profile remains within a preset deformation range within a preset time period of the heating power signal output; the second temperature acquisition unit 32 is also used to acquire the temperature of each part of the titanium alloy profile when the deformation of the titanium alloy profile remains within the preset deformation range, and feed back the coordinates of the part corresponding to the highest temperature to the control module; the control module 40 is also used to drive the motor to move according to the coordinates of the part corresponding to the highest temperature so that the first temperature acquisition unit re-acquires the highest temperature of the part coordinates of the titanium alloy profile; the control module 40 is also used to output a control signal to the heating module according to the highest temperature of the part coordinates of the titanium alloy profile re-acquired by the first temperature acquisition unit 31 and the target highest temperature so that the heating module 10 adjusts the heating power signal according to the adjustment control signal.

[0071] Specifically, when the deformation of the titanium alloy profile remains within a preset deformation range within a preset time period for the heating power signal output (i.e., when the profile is in the creep stage), the second temperature acquisition unit 32 acquires the temperature at various locations on the titanium alloy profile and feeds back the coordinates of the location corresponding to the highest temperature to the control module 40. The control module 40 drives the motor to move according to the coordinates of the location corresponding to the highest temperature, causing the first temperature acquisition unit to re-acquire the highest temperature at the coordinates of the titanium alloy profile location. The control module 40 outputs a control signal to the heating module 10 based on the re-acquired highest temperature of the titanium alloy profile location by the first temperature acquisition unit 31 and the target highest temperature, so that the heating module 10 adjusts the heating power signal according to the adjustment control signal. This achieves the detection and closed-loop precise control of the highest temperature during the creep stage of the profile. Because the first temperature acquisition unit 31 and the second temperature acquisition unit 32 work together during the creep stage, the control efficiency of the highest temperature during the creep stage is improved.

[0072] Based on the same inventive concept, this invention also provides a method for temperature measurement and control during the deformation process of titanium alloy profiles. Figure 6 This invention provides a temperature control method for the deformation process of titanium alloy profiles; this method is applied to the temperature control system for the deformation process of titanium alloy profiles described in the above embodiments, such as... Figure 6 As shown, the temperature measurement and control method specifically includes the following steps:

[0073] S110, The heating module heats the titanium alloy profile according to the heating power signal and heating time to make the titanium alloy profile hot-stretched and bent.

[0074] S120: The position sensor acquires the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time, and sends the positions of each cutting point to the control module.

[0075] S130, the control module drives the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point during the hot bending forming process of the titanium alloy profile in real time.

[0076] S140, The control module outputs a control signal to the heating module based on the temperature at each cutting point and the temperature at the target cutting point, so that the heating module adjusts the heating power signal according to the adjustment control signal.

[0077] This solution achieves precise monitoring of the highest temperature at each cutting point through a movable first temperature acquisition unit, enabling precise control of overall temperature uniformity. This helps reduce residual stress inside the profile and enhances the uniformity of the structure.

[0078] Based on the above embodiments, further optimizations are made. Figure 7 This is another temperature control method for the deformation process of titanium alloy profiles provided in this embodiment of the invention, such as... Figure 7 As shown, this method is applied to the temperature measurement and control system during the deformation process of the titanium alloy profile corresponding to the above embodiment. The temperature measurement system also includes a cooling module; the temperature acquisition module further includes a second temperature acquisition unit; the method specifically includes the following steps:

[0079] S210, The control module controls the cooling module to start so that the temperature measurement and control system is in a cold circulation state.

[0080] S220, the heating module heats the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile.

[0081] S230: The control module receives and determines the abnormal temperature location based on the temperature of each part of the titanium alloy profile during the hot pre-stretching process collected by the second temperature acquisition unit.

[0082] S240, the heating module heats the titanium alloy profile according to the heating power signal and heating time to make the titanium alloy profile hot-stretched and bent.

[0083] The S250 position sensor acquires the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time and sends the positions of each cutting point to the control module.

[0084] S260, the control module drives the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point during the hot bending forming process of the titanium alloy profile in real time.

[0085] S270: The control module outputs a control signal to the heating module based on the temperature at each tangent point and the target tangent point temperature, so that the heating module adjusts the heating power signal according to the control signal.

[0086] Building upon the aforementioned embodiments, before the hot-drawing bending process of the titanium alloy profile, a second temperature acquisition unit can be used to collect the temperature of various parts of the titanium alloy profile during the pre-stretching process. This ensures the uniformity of the profile surface temperature before the hot-drawing bending process, preventing excessive stress during the process and thus enabling more accurate monitoring of the highest temperature at each cutting point during the subsequent hot-drawing bending process. Furthermore, the cooling module is activated before temperature control, further improving the stability of the temperature control process.

[0087] Optionally, the temperature measurement and control method also includes:

[0088] Within a preset time period of the heating power signal output, the position sensor detects whether the deformation of the titanium alloy profile remains at the preset deformation.

[0089] The second temperature acquisition unit acquires the temperature at various parts of the titanium alloy profile and feeds back the coordinates of the part with the highest temperature to the control module.

[0090] The control module drives the motor to move according to the coordinates of the part corresponding to the highest temperature. The first temperature acquisition unit re-acquires and feeds back the highest temperature of the titanium alloy profile part coordinates to the control module.

[0091] The control module re-acquires and feeds back the highest temperature and target highest temperature of the titanium alloy profile location coordinates based on the first temperature acquisition unit, and outputs a control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal; wherein, the acquisition accuracy of the first temperature acquisition unit is greater than that of the second temperature acquisition unit.

[0092] In the creep stage, the first temperature acquisition unit and the second temperature acquisition unit work together to improve the control efficiency of the highest temperature during the creep stage.

[0093] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A temperature measurement and control system for the deformation process of titanium alloy profiles, characterized in that, include: The system includes a heating module, a position sensor, a temperature acquisition module, and a control module; the heating module, the position sensor, and the temperature acquisition module are all electrically connected to the control module. The temperature acquisition module includes a first temperature acquisition unit and a motor; the motor is used to drive the first temperature acquisition unit to move. The heating module is used to heat the titanium alloy profile according to the heating power signal and heating time to make the titanium alloy profile hot-bent. The position sensor is used to acquire the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time, and send the positions of each cutting point to the control module. The control module is used to drive the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point position in real time during the hot bending forming of the titanium alloy profile. The control module is further configured to output an adjustment control signal to the heating module based on the temperature at each tangent point and the target tangent point, so that the heating module adjusts the heating power signal according to the adjustment control signal.

2. The temperature measurement and control system for the deformation process of titanium alloy profiles according to claim 1, characterized in that, The temperature acquisition module also includes a second temperature acquisition unit; The heating module is also used to heat the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile. The second temperature acquisition unit is used to acquire the temperature of each part of the titanium alloy profile during the pre-stretching process and to feed back the temperature of each part to the control module; The control module is also used to determine the location of abnormal temperature based on the temperature of each part.

3. The temperature measurement and control system for the deformation process of titanium alloy profiles according to claim 1, characterized in that, It also includes a cooling module; the cooling module is electrically connected to the control module; The control module is also used to control the cooling module to start so that the temperature measurement and control system is in a cold circulation state.

4. The temperature measurement and control system for the deformation process of titanium alloy profiles according to claim 1, characterized in that, The heating module includes a switching power supply unit and a power control unit; the power control unit is electrically connected to the switching power supply unit. The power control unit is used to adjust the heating power signal output by the switching power supply unit according to the adjustment control signal output by the control module.

5. The temperature measurement and control system for the deformation process of titanium alloy profiles according to claim 2, characterized in that, The position sensor is also used to detect whether the deformation of the titanium alloy profile remains within a preset deformation range within a preset time period after the heating power signal is output. The second temperature acquisition unit is also used to acquire the temperature at various parts of the titanium alloy profile when the deformation of the titanium alloy profile is maintained at a preset deformation, and to feed back the coordinates of the part corresponding to the highest temperature to the control module. The control module is also used to drive the motor to move according to the coordinates of the part corresponding to the highest temperature so that the first temperature acquisition unit can re-acquire the highest temperature of the part coordinates of the titanium alloy profile. The control module is further configured to re-acquire the highest temperature and target highest temperature of the coordinates of the part of the titanium alloy profile by the first temperature acquisition unit and output a control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal.

6. A method for temperature measurement and control during the deformation process of a titanium alloy profile, characterized in that, The temperature measurement and control system applied to the deformation process of the titanium alloy profile according to any one of claims 1-5, the temperature measurement and control method comprising: The heating module heats the titanium alloy profile according to the heating power signal and heating time to enable the titanium alloy profile to be hot-bent. The position sensor acquires the positions of each cutting point during the hot drawing and bending process of the titanium alloy profile in real time, and sends each cutting point position to the control module; The control module drives the motor to move according to the position of each cutting point so that the first temperature acquisition unit can collect the temperature of each cutting point position in real time during the hot bending forming of the titanium alloy profile. The control module outputs a control signal to the heating module based on the temperature at each cutting point and the temperature at the target cutting point, so that the heating module adjusts the heating power signal according to the adjustment control signal.

7. The temperature control method for the deformation process of titanium alloy profiles according to claim 6, characterized in that, The temperature acquisition module further includes a second temperature acquisition unit; the second temperature acquisition unit is used to acquire the temperature of various parts of the titanium alloy profile during the hot drawing and bending process of the titanium alloy profile. The heating module heats the titanium alloy profile according to the heating power signal and heating time, and before the titanium alloy profile is hot-stretched and bent, it also includes: The heating module heats the titanium alloy profile according to the initial heating power signal and the initial heating time to pre-stretch the titanium alloy profile. The control module receives and determines the abnormal temperature locations based on the temperatures of various parts of the titanium alloy profile during the hot pre-stretching process collected by the second temperature acquisition unit.

8. The temperature control method for the deformation process of titanium alloy profiles according to claim 6, characterized in that, The temperature acquisition module also includes a second temperature acquisition unit; The second temperature acquisition unit is used to acquire the temperature of various parts of the titanium alloy profile during the hot drawing and bending process. The temperature control method for the deformation process of the titanium alloy profile also includes: Within a preset time period of the heating power signal output, the position sensor detects whether the deformation of the titanium alloy profile remains at a preset deformation. The second temperature acquisition unit acquires the temperature at various parts of the titanium alloy profile and feeds back the coordinates of the part corresponding to the highest temperature to the control module; The control module drives the motor to move according to the coordinates of the part corresponding to the highest temperature. The first temperature acquisition unit re-acquires and feeds back the highest temperature of the part coordinates of the titanium alloy profile to the control module. The control module re-acquires and feeds back the highest temperature and target highest temperature of the coordinates of the part of the titanium alloy profile based on the first temperature acquisition unit, and outputs a control signal to the heating module so that the heating module adjusts the heating power signal according to the adjustment control signal; The acquisition accuracy of the first temperature acquisition unit is greater than that of the second temperature acquisition unit.

9. The method for temperature measurement and control of the deformation process of titanium alloy profiles according to any one of claims 7-8, characterized in that, The temperature measurement and control system also includes a cooling module; The temperature measurement and control method further includes: The control module controls the cooling module to start, so that the temperature measurement and control system is in a cold circulation state.

10. The temperature control method for the deformation process of titanium alloy profiles according to claim 6, characterized in that, The heating module includes a switching power supply unit and a power control unit; The control module outputs a control signal to the heating module based on the temperature at each tangent point and the target tangent point temperature, so that the heating module adjusts the heating power signal according to the adjustment control signal, including: The control module outputs an adjustment control signal to the power control unit based on the temperature at each tangent point and the target tangent point, so that the power control unit adjusts the output heating power signal of the switching power supply unit according to the adjustment control signal.

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