Shape correcting machine for titanium and titanium alloy arc-shaped profiled bars

Abstract

The utility model belongs to the field of non-ferrous metal profile forming, and particularly discloses a shape correcting machine for titanium and titanium alloy arc-shaped profiles, which comprises a shape correcting platform arranged on a machine frame, a bottom plate is detachably connected onto the shape correcting platform, an arc-shaped static die is fixedly arranged on the bottom plate and used for meeting the standard curvature radius of a titanium alloy profile to be corrected, and the arc-shaped static die is fixedly connected with the machine frame. The shape correcting platform is further provided with a horizontal shape correcting mechanism for exerting horizontal acting force on the titanium alloy profile to be corrected after online heating and a vertical shape correcting mechanism for exerting vertical acting force. Wherein an online heating mode is adopted for the titanium alloy profile to be shaped, so that various problems caused by secondary transfer of hot materials and clamping and repositioning after offline heating are avoided. According to the utility model, the horizontal and vertical shape correcting mechanisms are matched with the arc-shaped static die, so that the shape correction of the profiled bar after online heating is completed, and the form and location tolerance and the curvature radius required by the subsequent profiled bar machining process are met.

Description

Technical Field

[0001] This utility model belongs to the field of non-ferrous metal profile forming technology, and relates to titanium and titanium alloy extruded arc-shaped profiles (such as Y-shaped or T-shaped profiles), zirconium and other non-ferrous metal profiles, specifically relating to a straightening machine for titanium and titanium alloy arc-shaped profiles. Background Technology

[0002] In the field of non-ferrous metal materials, titanium and titanium alloys are widely used in aerospace, weaponry, petrochemicals, marine development, semiconductor manufacturing, and many other fields due to their high strength, good corrosion resistance, and high heat resistance. Among these applications, titanium and titanium alloy curved profiles (T-profiles or Y-profiles) play a crucial load-bearing and sealing role in the aerospace field. However, the initial state of titanium and titanium alloy curved profiles is a straight, extruded shape, while the final product requires a shape similar to... Figure 1 The arc shape shown requires subsequent bending and straightening processes to achieve the required radius of curvature.

[0003] However, due to the unique properties of titanium and titanium alloys, a series of problems arise during the profile forming process. Titanium alloys have extremely high room temperature strength, with a yield strength reaching 850 MPa, far exceeding the yield strength of ordinary steel and more than three times that of commonly used Q235 material. This high-strength characteristic causes titanium alloy curved profiles to exhibit the following defects during processing:

[0004] Firstly, due to the high strength and elasticity of titanium and titanium alloys, they are prone to springback after bending during the extrusion and bending process. This results in significant variations in the radius of curvature of the profile, making it difficult to precisely control within the required range and failing to meet the stringent requirements for curvature radius in subsequent machining processes. Furthermore, the profile may also twist, causing the overall shape to deviate significantly from the design requirements, greatly impacting product quality and performance.

[0005] Secondly, titanium and titanium alloy curved profiles often suffer from poor flatness after machining. For example, the dimensional and positional tolerances of the three flanges of the profile are prone to exceed the standards. This not only affects the appearance of the profile, but more importantly, it will seriously hinder subsequent machining processes. Substandard flatness may lead to uneven cutting by the tool during machining, affecting machining accuracy, and even damaging the tool and machining equipment.

[0006] In summary, existing technologies for processing titanium alloy curved profiles suffer from problems such as large changes in the radius of curvature due to springback after bending, profile distortion, and poor flatness, severely restricting the widespread application of titanium alloy curved profiles in various fields. Furthermore, considering the cost of titanium and titanium alloy raw materials, as well as the combined costs of extrusion and bending processes, the subsequent machining allowances for each facet of the profile section can only be designed to meet the minimum machining allowance. Therefore, before machining, the profile must undergo thermal correction to meet the dimensional and positional tolerances and radius of curvature requirements of the profile machining process. However, existing technologies lack specialized equipment for thermal correction of titanium and titanium alloy curved profiles.

[0007] In view of this, this utility model is hereby proposed. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a straightening machine for titanium and titanium alloy curved profiles, which is mainly used to solve problems such as large changes in the radius of curvature, profile distortion and poor flatness caused by the springback of titanium and titanium alloy curved profiles after bending.

[0009] The objective of this utility model is achieved through the following technical solution:

[0010] This utility model provides a straightening machine for titanium and titanium alloy arc-shaped profiles, including a straightening platform mounted on a frame. A base plate is detachably connected to the straightening platform. An arc-shaped stationary mold for meeting the standard radius of curvature of the titanium alloy profile to be straightened is fixedly mounted on the base plate. Multiple sets of horizontal straightening mechanisms are arranged on the straightening platform at intervals on the inner side of the arc-shaped stationary mold to apply horizontal forces to the titanium alloy profile to be straightened. At the same time, multiple sets of vertical straightening mechanisms are arranged on the straightening platform above the arc-shaped stationary mold to apply vertical forces to the titanium alloy profile to be straightened.

[0011] Furthermore, the straightening machine is also equipped with an online heating device, which is used to heat the titanium alloy profile to be straightened in the space formed by the arc-shaped static mold, the horizontal straightening mechanism and the vertical straightening mechanism before straightening, so that the titanium alloy profile to be straightened reaches the preset temperature and is kept at the temperature for a preset time.

[0012] Furthermore, when the titanium alloy profile to be shaped is heated online, the temperature is heated to 600℃~850℃, and the holding time is 2min~15min.

[0013] Furthermore, the horizontal alignment mechanism includes a first hydraulic cylinder horizontally fixedly mounted on the alignment platform. A linear slide rail is provided between the first hydraulic cylinder and the arc-shaped stationary mold. A slider is slidably mounted on the linear slide rail. One end of the slider is connected to the piston rod of the first hydraulic cylinder, and the other end is fixedly mounted with a first moving mold that cooperates with the arc-shaped stationary mold.

[0014] Furthermore, the vertical alignment mechanism includes a right-angle support frame fixedly mounted on the alignment platform, a second hydraulic cylinder is vertically fixedly mounted on the horizontal section of the right-angle support frame, and a second moving mold that cooperates with the arc-shaped static mold is fixedly connected to the piston rod end of the second hydraulic cylinder.

[0015] Furthermore, a first pressure sensor is provided between the piston rod of the first hydraulic cylinder and the slider, and a second pressure sensor is provided between the piston rod of the second hydraulic cylinder and the second moving mold;

[0016] When the first and second hydraulic cylinders are shaping the titanium alloy profile to be shaped, the thrust applied is 100kN to 500kN, and the thrust is maintained for 2min to 15min.

[0017] Furthermore, the surfaces of the arc-shaped static mold, the first moving mold, and the second moving mold are all coated with a layer of high-temperature resistant insulating material;

[0018] Cooling circulation pipes are respectively provided inside the arc-shaped stationary mold, the first moving mold, and the second moving mold.

[0019] Furthermore, the straightening machine also includes a hydraulic station and a mold water cooling station. The hydraulic station is connected to the first cylinder and the second cylinder respectively through hydraulic pipelines, and is used to control the individual operation of a single first cylinder and / or a single second cylinder, or the simultaneous operation of all first cylinders and / or all second cylinders.

[0020] The mold water cooling station is connected to the cooling circulation pipes installed inside the arc-shaped stationary mold, the first moving mold, and the second moving mold via cooling pipes.

[0021] Furthermore, the multiple sets of horizontal and vertical straightening mechanisms are equidistantly distributed along the arc length of the arc-shaped static mold, and the multiple sets of horizontal straightening mechanisms simultaneously apply horizontal forces to the titanium alloy profile to be straightened, while the multiple sets of vertical straightening mechanisms simultaneously apply vertical forces to the titanium alloy profile to be straightened.

[0022] Furthermore, the titanium alloy profile to be shaped includes a T-profile or a Y-profile.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The straightening machine provided by this utility model first places the titanium alloy profile to be straightened in a space (the cavity is formed by the arc-shaped static mold, the first moving mold, and the second moving mold) before straightening, and heats it online to a preset temperature and holds it at that temperature for a preset time. This avoids the problems of high resistance, poor plasticity, high springback, and difficulty in deformation of the profile at room temperature. It also avoids various problems caused by secondary transfer of hot material and repositioning of the profile after offline heating. In addition, the straightening machine uses the arc-shaped static mold with a standard radius of curvature as a reference. It straightens the profile by applying forces in the horizontal and vertical directions through the horizontal and vertical straightening mechanisms that cooperate with it. Each cylinder in the two straightening mechanisms can act independently to realize the local straightening function of the profile, and can also realize the simultaneous action of all horizontal push-pull cylinders and all vertical pressing cylinders, thereby completing the overall constraint straightening function of the profile. The use of this straightening machine effectively solved problems such as excessive form and position tolerances on the three flange surfaces, and the failure of the local curvature radius and the curvature radius on the entire arc length of the profile to meet the requirements.

[0025] 2. The straightening machine provided by this utility model has a layer of high-temperature resistant insulating material coated on the surfaces of the arc-shaped stationary mold, the first moving mold, and the second moving mold, which are in direct contact with the titanium alloy profile to be straightened. This effectively solves the insulation problem when using direct current to heat the profile in an online heating device. Furthermore, cooling circulation pipes are respectively installed inside the arc-shaped stationary mold, the first moving mold, and the second moving mold, and are connected to a water cooling station via cooling pipes. This solves the problem of performance degradation caused by prolonged high temperature rise of the mold, and improves the service life of the mold. Attached Figure Description

[0026] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a front view of the arc-shaped profile provided by this utility model;

[0029] Figure 2 A top view of the shaping machine of this utility model (excluding the online heating device, hydraulic station, and mold water cooling station);

[0030] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of the BB (including the online heating device, hydraulic station and mold water cooling station).

[0031] in:

[0032] 1 is the calibration platform;

[0033] 2 is the base plate;

[0034] 3 is an arc-shaped static mold;

[0035] 4 is the horizontal alignment mechanism; 41 is the first hydraulic cylinder; 42 is the linear slide rail; 43 is the slider; 44 is the first moving mold; 45 is the first pressure sensor;

[0036] 5 is the vertical alignment mechanism; 51 is the right-angle support frame; 52 is the second hydraulic cylinder; 53 is the second moving mold; 54 is the second pressure sensor;

[0037] 6 is an online heating device;

[0038] 7 is the hydraulic station;

[0039] 8 is the mold water cooling station;

[0040] A represents the titanium alloy profile to be shaped. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0042] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] Please see Figures 1 to 3This utility model provides a straightening machine for titanium and titanium alloy curved profiles, including a straightening platform 1 mounted on the top of a frame. The frame can be a fixed structure or a height-adjustable structure. A base plate 2 is detachably connected to the straightening platform 1 by fastening bolts. The base plate 2 is a single curved plate structure with lifting rings on both sides to allow it to be removed from the straightening platform 1 and moved as a whole after straightening. An arc-shaped stationary mold 3 is fixedly mounted on the base plate 2. The arc-shaped stationary mold 3 is used to meet the standard radius of curvature required for the titanium alloy profile A to be straightened. The arc-shaped stationary mold 3 can be a one-piece molding structure or composed of multiple segmented arc-shaped stationary molds. Multiple sets of horizontal straightening mechanisms 4 are arranged on the straightening platform 1, spaced apart on the inner side of the arc-shaped stationary mold 3. These horizontal straightening mechanisms 4 are used to apply a horizontal force to the titanium alloy profile A to be straightened, that is, to straighten it horizontally in conjunction with the arc-shaped stationary mold 3. At the same time, multiple sets of vertical straightening mechanisms 5 are arranged on the straightening platform 1, above the arc-shaped stationary mold 3. These vertical straightening mechanisms 5 are used to apply a vertical force to the titanium alloy profile A to be straightened, that is, to straighten it vertically in conjunction with the arc-shaped stationary mold 3. It should be noted that before the horizontal straightening mechanisms 4 and vertical straightening mechanisms 5 straighten the titanium alloy profile A to be straightened, the titanium alloy profile A to be straightened is first placed in the space formed by the arc-shaped stationary mold 3, the horizontal straightening mechanisms 4, and the vertical straightening mechanisms 5, and then heated online to a preset temperature. In addition, this shaping machine can also be used to shape other non-ferrous metal materials. Its usage method is similar to that of titanium alloy profile A. The heating and holding time can be determined according to the specific situation, and the corresponding mold can be adapted according to the shape of different titanium alloy profile A. It will not be described in detail here.

[0044] In this embodiment of the invention, three sets of horizontal straightening mechanisms 4 and three sets of vertical straightening mechanisms 5 are provided, and they are all equidistantly distributed along the arc length direction of the arc-shaped static mold 3 to ensure uniformity when force is applied simultaneously. In actual operation, the number of horizontal straightening mechanisms 4 and vertical straightening mechanisms 5 can be appropriately increased according to the length of the titanium alloy profile A to be straightened. When increasing the number, ensure that one set of horizontal straightening mechanisms 4 and one set of vertical straightening mechanisms 5 are located at the middle position of the arc length of the titanium alloy profile A to be straightened, so as to ensure uniform force and accurate straightening during the straightening process.

[0045] Specifically, in this embodiment of the invention, the horizontal straightening mechanism 4 includes a first hydraulic cylinder 41, which is horizontally fixed on the straightening platform 1. A linear slide rail 42 is provided between the first hydraulic cylinder 41 and the arc-shaped stationary mold 3. A slider 43 is slidably mounted on the linear slide rail 42. One end of the slider 43 is connected to the piston rod of the first hydraulic cylinder 41, and the other end is fixedly mounted with a first moving mold 44 that cooperates with the arc-shaped stationary mold 3. A first pressure sensor 45 is provided between the piston rod of the first hydraulic cylinder 41 and the slider 43 to monitor the force applied in the horizontal direction. With the above configuration, when the first hydraulic cylinder 41 is activated, its extended piston rod drives the slider 43 located on the linear slide rail 42 to move along the path of the linear slide rail, thereby causing the first moving mold 44 on the slider 43 to gradually approach the arc-shaped stationary mold 3 in the horizontal direction and compress the titanium alloy profile A to be straightened between the two until the outer surface of the titanium alloy profile A to be straightened is completely in contact with the first moving mold 44 and the arc-shaped stationary mold 3.

[0046] In this embodiment of the invention, the vertical straightening mechanism 5 mainly consists of the following four parts: a right-angle support frame 51 fixedly mounted on the straightening platform 1, which has a stable structure and can provide reliable support for subsequent components; a second hydraulic cylinder 52 vertically fixedly mounted on the horizontal section of the right-angle support frame 51, which ensures that the second hydraulic cylinder 52 can output stably during the downward pressing process without shaking or shifting; a second moving mold 53 that cooperates with the arc-shaped stationary mold 3 is fixedly connected to the piston rod end of the lower part of the second hydraulic cylinder 52; and a second pressure sensor 54 is provided between the piston rod of the second hydraulic cylinder 52 and the second moving mold 53. With the above settings, when the second hydraulic cylinder 52 works, the extension and retraction of its piston rod can drive the second moving mold 53 to perform a vertical linear movement, thereby cooperating with the arc-shaped stationary mold 3 to perform a vertical straightening operation on the titanium alloy profile to be straightened until the upper surface of the titanium alloy profile A to be straightened is completely in contact with the second moving mold 53 and the arc-shaped stationary mold 3.

[0047] Furthermore, during the shaping of the titanium alloy profile A, after multiple practical verifications, the thrust applied by the first hydraulic cylinder 41 and the second hydraulic cylinder 42 during the shaping of the titanium alloy profile A is set within the range of 100kN to 500kN. This avoids damage to the profile due to excessive thrust or failure to achieve the expected shaping target due to insufficient thrust. Simultaneously, after applying thrust, the duration of maintaining the thrust by the first hydraulic cylinder 41 and the second hydraulic cylinder 42 is generally set between 2 minutes and 15 minutes. This allows sufficient time for the profile to adjust its shape and stabilize under the thrust, ensuring the accuracy and stability of the shaping. In practice, the magnitude of the applied thrust and the duration of maintaining the thrust can be set within the above range according to the specifications of the titanium alloy profile A to be shaped.

[0048] In this process, the mold in contact with the hot material is prone to overheating due to the large thrust required for shaping. Therefore, this embodiment of the invention includes cooling circulation pipes inside the arc-shaped stationary mold 3, the first moving mold 44, and the second moving mold 44 to reduce the temperature of the mold during operation and prevent overheating from affecting its service life. The cooling circulation pipes can remove heat from the inside of the mold through the circulating cooling medium, keeping the mold operating within a suitable temperature range, thereby improving the mold's service life and shaping effect.

[0049] In this embodiment of the invention, a hydraulic station 7 and a mold water cooling station 8 are also provided. The hydraulic station 7 is connected to the first cylinder 41 and the second cylinder 52 via hydraulic pipelines, and is used to control the individual operation of a single first cylinder 41 and / or a single second cylinder 5. Individual operation is generally suitable for local shaping of the titanium alloy profile A; or all first cylinders 41 and / or all second cylinders 52 can operate simultaneously; simultaneous operation is suitable for overall shaping of the titanium alloy profile A. In addition, the mold water cooling station 8 is connected to the cooling circulation pipelines provided inside the arc-shaped stationary mold 3, the first moving mold 44, and the second moving mold 53 via cooling pipelines, and provides circulating cooling water to the mold to extend its service life.

[0050] In this embodiment of the invention, the titanium alloy profile A to be shaped is heated online using an online heating device 6, preferably an online electric heating device. This type of online electric heating device directly applies direct current to the profile for heating. To ensure safety during operation, the surfaces of the arc-shaped stationary mold 3, the first moving mold 44, and the second moving mold 53, which are in direct contact with the profile, are all coated with a layer of high-temperature resistant insulating material. This not only effectively prevents potential safety issues such as electric leakage during heating but also protects the molds from the influence of current, extending their service life.

[0051] Furthermore, when heating the titanium alloy profile A to be shaped online, it is heated to a temperature range of 600℃ to 850℃. Within this temperature range, the plastic deformation capacity of the titanium alloy profile is significantly improved, which is beneficial to the shaping operation. Simultaneously, the holding time is set to 2 to 15 minutes to ensure the temperature uniformity of the profile after heating (within ±10℃), allowing all parts of the profile to soften sufficiently and providing favorable conditions for the shaping process. In other words, by controlling the heating temperature and holding time, adverse effects on the profile quality due to insufficient or excessive heating can be effectively avoided, thus ensuring the stability and reliability of the shaping effect. In practice, the heating temperature and holding time can be set within the above range according to the specifications of the titanium alloy profile A to be shaped.

[0052] The straightening machine provided in this embodiment of the invention, when straightening titanium alloy profiles, uses... Figure 1Taking the titanium alloy T-profile A corresponding to the arc AA as an example, the workflow is as follows:

[0053] 1) First, place the titanium alloy T-shaped profile A in the open space formed by the arc-shaped static mold 3, the first moving mold 44 and the second moving mold 53. Then, use the online heating device 6 to heat the titanium alloy T-shaped profile A to be shaped online at a temperature of 600℃~850℃. After reaching the temperature, hold it for 2min~15min to improve the plasticity of the titanium alloy T-shaped profile A, reduce the deformation resistance, and make the internal structure uniform.

[0054] Note: When titanium alloy T-profile A is placed in the open space formed by the arc-shaped stationary mold 3, the first moving mold 44 and the second moving mold 53, gaps should be left at each end of titanium alloy T-profile A along the extension direction to ensure that it is in a free state along each end direction, so as to release internal stress during shaping; during the heating process, the mold water cooling station 8 provides circulating cooling water to the cooling circulation pipes inside the arc-shaped stationary mold 3, the first moving mold 44 and the second moving mold 53 through the cooling pipes to prevent the mold from degrading due to heat.

[0055] 2) After the heat preservation time is up, the horizontal straightening mechanism 4 and the vertical straightening mechanism 5 are activated. The piston rod of the first hydraulic cylinder 41 extends, driving the slider 43 to move along the linear slide rail 42, causing the first moving mold 44 to gradually approach the arc-shaped stationary mold 3 in the horizontal direction and extrude the profile between the two. At the same time, the piston rod of the second hydraulic cylinder 52 on the right-angle support frame 51 extends, causing the second moving mold 53 to apply force to the profile from the vertical direction.

[0056] Note that during this process, the first pressure sensor 45 and the second pressure sensor 54 monitor the thrust applied by the first hydraulic cylinder 41 and the second hydraulic cylinder 52, respectively. The thrust is generally set to 100kN to 500kN and is maintained for 2 to 15 minutes to ensure that the profile can be fully shaped in the horizontal and vertical directions.

[0057] 3) After the thrust holding time ends, reverse the operation to retract the piston rods of the first cylinder 41 and the second cylinder 52. Then, disassemble the connection between the base plate 2 and the straightening platform 1. After cooling to room temperature, use hoisting equipment to remove the base plate 2 along with the straightened profile. Finally, inspect the marked positions. The inspection results are shown in Table 1 below:

[0058] Table 1: Comparison data of flatness, radius deviation (unit: mm), and torsion angle (unit: °) before and after correction are as follows:

[0059] Position markings on profile 1 2 3 4 5 6 Flatness before correction 6.20 5.66 4.82 5.64 4.28 6.56 Flatness after correction 2.72 2.88 2.62 2.82 2.64 2.54 Radius deviation before correction 35.52 46.20 58.56 65.30 48.24 42.26 Radius deviation after correction 3.50 2.56 2.06 1.86 2.72 2.86 profile torsion angle before correction 3.12 2.86 2.16 2.80 2.20 3.16 Profile torsion angle after correction 2.02 1.66 1.56 1.76 1.26 2.16

[0060] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0061] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. A straightening machine for titanium and titanium alloy arc-shaped profiles, characterized in that, The system includes a calibration platform (1) mounted on a frame, a base plate (2) detachably connected to the calibration platform (1), an arc-shaped static mold (3) fixedly mounted on the base plate (2) to meet the standard radius of curvature of the titanium alloy profile (A) to be calibrated, multiple sets of horizontal calibration mechanisms (4) that apply horizontal force to the titanium alloy profile (A) to be calibrated are arranged on the calibration platform (1) at intervals on the inner side of the arc-shaped static mold (3), and multiple sets of vertical calibration mechanisms (5) that apply vertical force to the titanium alloy profile (A) to be calibrated are arranged on the calibration platform (1) above the arc-shaped static mold (3).

2. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 1, characterized in that, The straightening machine is also equipped with an online heating device (6), which is used to heat the titanium alloy profile (A) to be straightened in the space formed by the arc-shaped static mold (3), the horizontal straightening mechanism (4) and the vertical straightening mechanism (5) before straightening, so that the titanium alloy profile (A) to be straightened reaches the preset temperature and is kept warm for a preset time.

3. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 2, characterized in that, When the titanium alloy profile (A) to be shaped is heated online, the temperature is heated to 600℃~850℃ and the holding time is 2min~15min.

4. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 1, characterized in that, The horizontal straightening mechanism (4) includes a first oil cylinder (41) horizontally fixed on the straightening platform (1), a linear slide rail (42) is provided between the first oil cylinder (41) and the arc-shaped stationary mold (3), a slider (43) is slidably provided on the linear slide rail (42), one end of the slider (43) is connected to the piston rod of the first oil cylinder (41), and the other end is fixedly provided with a first moving mold (44) that cooperates with the arc-shaped stationary mold (3).

5. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 4, characterized in that, The vertical alignment mechanism (5) includes a right-angle support frame (51) fixedly mounted on the alignment platform (1). A second oil cylinder (52) is vertically fixedly mounted on the horizontal section of the right-angle support frame (51). The piston rod end of the second oil cylinder (52) is fixedly connected to a second moving mold (53) that cooperates with the arc-shaped static mold (3).

6. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 5, characterized in that, A first pressure sensor (45) is provided between the piston rod of the first oil cylinder (41) and the slider (43), and a second pressure sensor (54) is provided between the piston rod of the second oil cylinder (52) and the second moving mold (53); When the first cylinder (41) and the second cylinder (52) are shaping the titanium alloy profile (A), the thrust applied is 100kN to 500kN and the thrust is maintained for 2min to 15min.

7. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 5, characterized in that, The surfaces of the arc-shaped static mold (3), the first moving mold (44), and the second moving mold (53) are all coated with a layer of high-temperature resistant insulating material; Cooling circulation pipes are respectively provided inside the arc-shaped static mold (3), the first moving mold (44), and the second moving mold (53).

8. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 7, characterized in that, The straightening machine also includes a hydraulic station (7) and a mold water cooling station (8). The hydraulic station (7) is connected to the first cylinder (41) and the second cylinder (52) respectively through hydraulic pipelines, and is used to control the individual operation of a single first cylinder (41) and / or a single second cylinder (52), or the simultaneous operation of all first cylinders (41) and / or all second cylinders (52). The mold water cooling station (8) is connected to the cooling circulation pipes set inside the arc-shaped static mold (3), the first moving mold (44), and the second moving mold (53) through cooling pipes.

9. The straightening machine for titanium and titanium alloy arc-shaped profiles according to any one of claims 1 to 8, characterized in that, Multiple sets of horizontal straightening mechanisms (4) and multiple sets of vertical straightening mechanisms (5) are equidistantly distributed along the arc length direction of the arc-shaped static mold (3), and ensure that one set of horizontal straightening mechanisms (4) and one set of vertical straightening mechanisms (5) are located at the middle position of the arc length of the titanium alloy profile (A) to be straightened.

10. The straightening machine for titanium and titanium alloy arc-shaped profiles according to claim 9, characterized in that, The titanium alloy profile (A) to be shaped includes either a T-profile or a Y-profile.

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