Nondestructive testing equipment for internal defects of high-quality titanium alloy bar

Abstract

The invention discloses nondestructive testing equipment for internal defects of high-quality titanium alloy bars, and relates to the technical field of sensor detection.The nondestructive testing equipment comprises a feeder, a material changing sliding block, a discharging base, an anti-collision table, a clamping assembly, a truss guide rail, a moving module and an ultrasonic testing assembly; the feeding device is arranged above the material changing sliding block, the anti-collision table is installed on one side of the discharging base, the clamping assembly is installed in the anti-collision table, the truss guide rail is located between the discharging base and the anti-collision table, the truss guide rail is erected through a support, the moving module is installed in the truss guide rail, and the moving module is connected with the control system through a circuit. The ultrasonic detection assembly is installed in the mobile module, through the arrangement of the ultrasonic detection assembly, the technical problem that ultrasonic waves cannot detect gaps is solved, and the use and maintenance cost of the detection equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor detection, and specifically to a non-destructive testing device for internal defects of high-quality titanium alloy bars. Background Technique

[0002] Titanium alloys are widely used in fields such as aerospace, medical devices, and chemical equipment. Usually, titanium alloys need to work in extreme environments, so the accuracy and reliability of detection are very important. Non-destructive testing (NDT) of titanium alloys means detecting internal or surface defects such as cracks, pores, inclusions, delamination, etc. without damaging the material. There are many non-destructive testing methods, mainly including ultrasonic testing, radiographic testing, penetrant testing, and magnetic particle testing. However, the detection means for titanium alloys are very limited. Among them, magnetic particle testing depends on the ferromagnetic properties of the object to be detected, and fluorescent penetrant testing can only be applied to relatively shallow detection depths. Therefore, the practical methods for non-destructive testing of titanium alloys usually include radiographic testing and ultrasonic testing. Radiographic testing needs to be used under very strict protection levels, and the operation and maintenance of the overall equipment are very expensive. Ultrasonic waves can have a longer propagation distance when propagating in solid media, but when the probe contacts the titanium alloy, it is easy to cause wear during movement and is not suitable for non-contact detection. Otherwise, the sound wave energy is reduced too quickly, and there are many limitations in use. Summary of the Invention

[0003] The purpose of the present invention is to provide a non-destructive testing device for internal defects of high-quality titanium alloy bars to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A non-destructive testing device for internal defects of high-quality titanium alloy bars, including a feeder, a material-changing slider, a discharge base, a collision prevention table, a clamping assembly, a truss guide rail, a moving module, and an ultrasonic testing assembly. The material-changing slider is slidably installed on the discharge base. The feeder is arranged above the material-changing slider. The collision prevention table is installed on one side of the discharge base. The clamping assembly is installed in the collision prevention table. The truss guide rail is located between the discharge base and the collision prevention table and is elevated by a bracket. The moving module is installed in the truss guide rail, and the moving module is connected to the control system through a circuit. The ultrasonic testing assembly is installed in the moving module.

[0005] Furthermore, a feed chute is provided at the bottom of the feeder, and the titanium alloy bars to be tested are located in the feeder. The material changing slider blocks the titanium alloy bars. A plurality of vertical slide grooves are provided on the side of the bottom of the feeder close to the anti-collision platform. A sliding baffle is slidably installed in each vertical slide groove, and a slope is provided on the side of the sliding baffle facing the feed chute. The titanium alloy bars to be tested are fed into the feeder through the feeding device, and the titanium alloy bars are discharged through the feed chute of the feeder. Before the material changing slider moves, the boss blocks the notch of the feed chute, and the titanium alloy bars are blocked in the feeder.

[0006] Furthermore, a pair of first electric push rods are installed on the discharging base, and the piston rods of the pair of first electric push rods are connected to the material changing slider, and a discharging trough is opened inside the discharging base, and a boss is provided on the side of the material changing slider away from the anti-collision platform, and the boss blocks the titanium alloy rods in the unloading trough, and a slope is provided on the side of the material changing slider close to the anti-collision platform, and the boss side of the slope is higher than the side close to the anti-collision platform. The control system drives the pair of first electric push rods to work, and the pair of first electric push rods drives the material changing slider to move, and the material changing slider moves in the direction away from the anti-collision platform, and the gap between the material changing slider and the anti-collision platform increases. The detected titanium alloy rod falls into the discharging base and rolls out of the discharging trough. After the boss moves, the titanium alloy rod falls onto the slope, but due to the obstruction of the sliding baffle, the titanium alloy rod will not roll along the slope.

[0007] Furthermore, the anti-collision platform and the material-changing slider are at the same height at one end close to each other, and there is a gap between the anti-collision platform and the material-changing slider. A 45° slope surface is provided on the side where the anti-collision platform and the material-changing slider are close to each other, and a buffer felt is provided on the slope surface. A pair of first electric push rods drive the material-changing slider to move back, and the pressure applied by the titanium alloy rod to the inclined surface of the sliding baffle decomposes the component force moving toward the vertical slide groove, so that the sliding baffle is squeezed into the vertical slide groove, and the titanium alloy rod rolls along the slope after passing over the sliding baffle, and the boss returns to the notch of the discharge chute for blocking it, and the sliding baffle is reset under the action of gravity, and the titanium alloy rod rolls to the position where the 45° slope surface is provided between the anti-collision platform and the material-changing slider, and the two 45° slope surfaces are equivalent to the V-groove positioning block for positioning the titanium alloy rod, so that the titanium alloy rod is at the detection position to be tested.

[0008] Furthermore, the clamping assembly includes a pair of return-bending clamp arms, a front rack and a rear rack, the pair of return-bending clamp arms are symmetrically arranged on both sides of the anti-collision platform, the two return-bending clamp arms are slidably connected to the anti-collision platform, and a rubber pad is provided at one end of each return-bending clamp arm located on the outside of the anti-collision platform, the front rack and the rear rack are both located inside the anti-collision platform, and the front rack and the rear rack are respectively connected to the two return-bending clamp arms.

[0009] Further, the clamping assembly further includes a servo motor, a gear, and a rotating shaft. The servo motor, the gear, and the rotating shaft are all installed inside the anti-collision platform. The rotating shaft is installed on the motor shaft of the servo motor, and the gear is installed on the rotating shaft. The gear is located between the front rack and the rear rack and is meshed with both the front rack and the rear rack. After the servo motor is powered on, it drives the rotating shaft to rotate, and the rotating shaft drives the gear to rotate. During the rotation of the gear, it drives the front rack and the rear rack to move in opposite directions, that is, the rotation of the gear controls the opening and closing of the two bending clamp arms. The two ends of the titanium alloy bar between the anti-collision platform and the material-changing slider are clamped by the bending clamp arms to fix the position of the titanium alloy bar, and then the ultrasonic detection assembly is used to detect the titanium alloy bar.

[0010] Further, the ultrasonic detection assembly includes a second electric push rod, a connecting block, a pair of sealing plates, and a rubber belt. The second electric push rod is installed upside down at the bottom of the moving module. The connecting block is installed on the piston rod of the second electric push rod. An opening groove is provided on the connecting block. The pair of sealing plates are symmetrically installed in the opening groove. Two sealing grooves are provided on the inner circle of the rubber belt, and the two sealing grooves are in sliding contact with the two sealing plates respectively. The rubber belt is in sliding and sealing connection with the sealing plates. The second electric push rod pushes downward to drive the rubber belt to move downward until it presses on the titanium alloy bar. The rubber belt deforms under pressure and fits more closely to the titanium alloy bar. The area enclosed by the two sealing plates and the rubber belt is filled with a coupling agent, and the coupling agent can be supplemented through the feeding hole. Since the rubber belt is in sliding and sealing connection with the sealing plates, the coupling agent will not leak, and the ultrasonic detector is immersed in the coupling agent.

[0011] Further, the ultrasonic detection assembly further includes four friction rollers and an ultrasonic detector. The four friction rollers are respectively rotatably installed on both sides of the two sealing plates, and the four friction rollers are all in contact with the rubber belt. The ultrasonic detector is installed between the pair of sealing plates and is connected to the control system through a circuit. A feeding hole is provided on one of the sealing plates. Through the conduction of the two media of the coupling agent and the rubber belt, the loss of ultrasonic waves during the process of reaching the titanium alloy bar is reduced, and at the same time, the loss of ultrasonic echo is reduced. During the detection process, the moving module drives the ultrasonic detection assembly to slowly move on the titanium alloy bar to realize the full-section detection of the titanium alloy bar. The rubber belt moves along the surface of the titanium alloy bar, and the friction rollers play a supporting role for the rubber belt. Through the setting of the ultrasonic detection assembly, the technical problem that ultrasonic waves cannot be detected intermittently is solved, and the use and maintenance costs of the detection equipment are reduced.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. Position the titanium alloy bar to be detected by using the 45° inclined planes opened on both the anti-collision platform and one side of the material-changing slider. The two 45° inclined planes are equivalent to V-shaped groove positioning blocks to position the titanium alloy bar, so that the titanium alloy bar is to be measured at the detection position. Clamp both ends of the titanium alloy bar between the anti-collision platform and the material-changing slider through the bending clamp arm to fix the position of the titanium alloy bar.

[0013] 2. Through the conduction of two media, the coupling agent and the rubber belt, reduce the loss of ultrasonic waves during the process of reaching the titanium alloy bar, and at the same time reduce the loss of ultrasonic echoes. During the detection process, through the setting of the ultrasonic detection component, the technical problem that ultrasonic waves cannot be detected at intervals is solved, and the use and maintenance costs of the detection equipment are reduced. Brief Description of the Drawings

[0014] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ; Figure 3 Schematic diagram of the structure of the feeder part of the present invention; Figure 4 Schematic diagram of the internal structure of the material-changing slider of the present invention; Figure 5 Schematic diagram of the internal structure of the anti-collision platform of the present invention Figure 1 ; Figure 6 Schematic diagram of the internal structure of the anti-collision platform of the present invention Figure 2 ; Figure 7 Schematic diagram of the structure of the ultrasonic detection component part of the present invention; In the figure: 1. Feeder; 2. Sliding baffle; 3. Material-changing slider; 4. Discharge base; 5. Anti-collision platform; 6. Bending clamp arm; 7. Front rack; 8. Rear rack; 9. Servo motor; 10. Gear; 11. Rotating shaft; 12. First electric push rod; 13. Truss guide rail; 14. Moving module; 15. Second electric push rod; 16. Connecting block; 17. Sealing plate; 18. Friction roller; 19. Ultrasonic detector; 20. Feeding hole; 21. Rubber belt. Detailed Embodiment

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Embodiment: AsFigures 1-7 As shown in the figure, the present invention provides a technical solution, a non-destructive testing device for internal defects of high-quality titanium alloy bars, including a feeder 1, a material-changing slider 3, a discharge base 4, a collision prevention table 5, a clamping assembly, a truss guide rail 13, a moving module 14 and an ultrasonic testing assembly. The material-changing slider 3 is slidably installed on the discharge base 4, the feeder 1 is arranged above the material-changing slider 3, the collision prevention table 5 is installed on one side of the discharge base 4, the clamping assembly is installed in the collision prevention table 5, the truss guide rail 13 is located between the discharge base 4 and the collision prevention table 5, the truss guide rail 13 is elevated by a bracket, the moving module 14 is installed in the truss guide rail 13, the moving module 14 is connected to the control system through a circuit, and the ultrasonic testing assembly is installed in the moving module 14. A blanking groove is provided at the bottom of the feeder 1, and the titanium alloy bar to be detected is located in the feeder 1. The material-changing slider 3 blocks the titanium alloy bar. A plurality of vertical sliding grooves are opened on one side of the bottom of the feeder 1 close to the collision prevention table 5. A sliding baffle 2 is slidably installed in each vertical sliding groove. The side of the sliding baffle 2 facing the blanking groove has an inclination. The titanium alloy bar to be detected is fed into the feeder 1 through a feeding device. The titanium alloy bar is blanked through the blanking groove of the feeder 1. Before the material-changing slider 3 moves, the convex platform blocks the notch of the blanking groove, and the titanium alloy bar is blocked in the feeder 1.

[0017] A pair of first electric push rods 12 are installed on the discharging base 4. The piston rods of the pair of first electric push rods 12 are connected to the material-changing slider 3. A discharging groove is formed inside the discharging base 4. A convex platform is arranged on one side of the material-changing slider 3 away from the anti-collision platform 5. The convex platform blocks the titanium alloy bars in the blanking groove. A slope is arranged on one side of the material-changing slider 3 close to the anti-collision platform 5. The convex platform side of the slope is higher than the side close to the anti-collision platform 5. The heights of the ends of the anti-collision platform 5 and the material-changing slider 3 close to each other are flush. There is a gap between the anti-collision platform 5 and the material-changing slider 3. 45° slope surfaces are formed on the sides of the anti-collision platform 5 and the material-changing slider 3 close to each other. Buffer felts are arranged on the slope surfaces. The control system drives the pair of first electric push rods 12 to work. The pair of first electric push rods 12 drive the material-changing slider 3 to move. The material-changing slider 3 moves in the direction away from the anti-collision platform 5. The gap between the material-changing slider 3 and the anti-collision platform 5 increases. The detected titanium alloy bars fall into the discharging base 4 and roll out from the discharging groove. After the convex platform moves, the titanium alloy bars fall onto the slope. However, due to the blocking of the sliding baffle 2, the titanium alloy bars will not roll along the slope. The pair of first electric push rods 12 drive the material-changing slider 3 to move back. The pressure exerted by the titanium alloy bars on the inclined surface of the sliding baffle 2 decomposes into a component force moving into the vertical chute, causing the sliding baffle 2 to be squeezed into the vertical chute. After the titanium alloy bars cross the sliding baffle 2, they roll along the slope. The convex platform returns to the notch of the blanking groove to block. The sliding baffle 2 resets under the action of gravity. The titanium alloy bars roll to the position where the 45° slope surfaces are formed between the anti-collision platform 5 and the material-changing slider 3. The two 45° slope surfaces are equivalent to V-shaped groove positioning blocks to position the titanium alloy bars, so that the titanium alloy bars are to be measured at the detection position.

[0018] The clamping assembly includes a pair of bent-back clamping arms 6, a front rack 7 and a rear rack 8. The pair of bent-back clamping arms 6 are symmetrically arranged on both sides of the anti-collision platform 5. The two bent-back clamping arms 6 are slidably connected to the anti-collision platform 5. A rubber pad is arranged at one end of each bent-back clamping arm 6 located outside the anti-collision platform 5. The front rack 7 and the rear rack 8 are both located inside the anti-collision platform 5. The front rack 7 and the rear rack 8 are respectively connected to the two bent-back clamping arms 6. The clamping assembly further includes a servo motor 9, a gear 10 and a rotating shaft 11. The servo motor 9, the gear 10 and the rotating shaft 11 are all installed inside the anti-collision platform 5. The rotating shaft 11 is installed on the motor shaft of the servo motor 9. The gear 10 is installed on the rotating shaft 11. The gear 10 is located between the front rack 7 and the rear rack 8. The gear 10 is meshed with both the front rack 7 and the rear rack 8. After the servo motor 9 is powered on, it drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the gear 10 to rotate. During the rotation of the gear 10, it drives the front rack 7 and the rear rack 8 to move in opposite directions, that is, the rotation of the gear 10 controls the opening and closing of the two bent-back clamping arms 6. The two ends of the titanium alloy bar between the anti-collision platform 5 and the material-changing slider 3 are clamped by the bent-back clamping arms 6 to fix the position of the titanium alloy bar. Then, the ultrasonic detection assembly is used to detect the titanium alloy bar.

[0019] The ultrasonic detection assembly includes a second electric push rod 15, a connecting block 16, a pair of sealing plates 17, and a rubber belt 21. The second electric push rod 15 is installed upside down at the bottom of the moving module 14. The connecting block 16 is installed on the piston rod of the second electric push rod 15. An opening groove is provided on the connecting block 16. A pair of sealing plates 17 are symmetrically installed in the opening groove. Two sealing grooves are provided on the inner circle of the rubber belt 21. The two sealing grooves are in sliding contact with the two sealing plates 17 respectively. The rubber belt 21 is slidably and sealingly connected to the sealing plates 17. The ultrasonic detection assembly further includes four friction rollers 18 and an ultrasonic detector 19. The four friction rollers 18 are respectively rotatably installed on both sides of the two sealing plates 17. The four friction rollers 18 are all in contact with the rubber belt 21. The ultrasonic detector 19 is installed between the pair of sealing plates 17. The ultrasonic detector 19 is connected to the control system through a circuit. A feeding hole 20 is provided on one of the sealing plates 17.

[0020] The second electric push rod 15 pushes downward, driving the rubber belt 21 to move downward until it presses on the titanium alloy bar. The rubber belt 21 deforms under pressure and fits more closely to the titanium alloy bar. The area enclosed by the two sealing plates 17 and the rubber belt 21 is filled with a coupling agent, and the coupling agent can be supplemented through the feeding hole 20. Since the rubber belt 21 is slidably and sealingly connected to the sealing plates 17, the coupling agent will not leak. The ultrasonic detector 19 is immersed in the coupling agent. Through the conduction of the two media of the coupling agent and the rubber belt 21, the loss of ultrasonic waves during the process of reaching the titanium alloy bar is reduced, and at the same time, the loss of ultrasonic echoes is reduced. During the detection process, the moving module 14 drives the ultrasonic detection assembly to slowly move on the titanium alloy bar, realizing the full-section detection of the titanium alloy bar. The rubber belt 21 moves along the surface of the titanium alloy bar, and the friction rollers 18 play a supporting role for the rubber belt 21. Through the setting of the ultrasonic detection assembly, the technical problem that ultrasonic waves cannot be detected at intervals is solved, and the use and maintenance costs of the detection equipment are reduced.

[0021] The working principle of the present invention: The titanium alloy bar to be detected is fed into the feeder 1 through the feeding device. The titanium alloy bar is discharged through the discharging groove of the feeder 1. Before the material-changing slider 3 moves, the boss blocks the notch of the discharging groove, and the titanium alloy bar is blocked in the feeder 1.

[0022] The control system drives a pair of first electric push rods 12 to work. The pair of first electric push rods 12 drives the material-changing slider 3 to move. The material-changing slider 3 moves away from the anti-collision platform 5, and the gap between the material-changing slider 3 and the anti-collision platform 5 increases. The detected titanium alloy bar falls into the discharge base 4 and rolls out from the discharge chute. After the convex platform moves, the titanium alloy bar falls onto the slope. However, due to the blocking of the sliding baffle 2, the titanium alloy bar will not roll along the slope. The pair of first electric push rods 12 drives the material-changing slider 3 to move back. The pressure exerted by the titanium alloy bar on the inclined surface of the sliding baffle 2 decomposes into a component force moving into the vertical chute, causing the sliding baffle 2 to be squeezed into the vertical chute. After the titanium alloy bar crosses the sliding baffle 2, it rolls along the slope. The convex platform returns to the notch of the feeding chute to block. The sliding baffle 2 resets under the action of gravity. The titanium alloy bar rolls to the position where a 45° slope surface is opened between the anti-collision platform 5 and the material-changing slider 3. The two 45° slope surfaces are equivalent to V-shaped groove positioning blocks to position the titanium alloy bar, so that the titanium alloy bar is to be measured at the detection position.

[0023] After the servo motor 9 is powered on, it drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the gear 10 to rotate. During the rotation of the gear 10, it drives the front rack 7 and the rear rack 8 to move in opposite directions, that is, the rotation of the gear 10 controls the opening and closing of the two bending clamp arms 6. The two ends of the titanium alloy bar between the anti-collision platform 5 and the material-changing slider 3 are clamped by the bending clamp arms 6 to fix the position of the titanium alloy bar. Then, the ultrasonic detection component is used to detect the titanium alloy bar.

[0024] The second electric push rod 15 pushes downward, driving the rubber belt 21 to move downward until it presses on the titanium alloy bar. The rubber belt 21 deforms under pressure and fits more closely to the titanium alloy bar. The area enclosed by the two sealing plates 17 and the rubber belt 21 is filled with a coupling agent, and the coupling agent can be supplemented through the feeding hole 20. Since the rubber belt 21 is in sealed sliding connection with the sealing plate 17, the coupling agent will not leak. The ultrasonic detector 19 is immersed in the coupling agent. Through the conduction of the two media of the coupling agent and the rubber belt 21, the loss of ultrasonic waves during the process of reaching the titanium alloy bar is reduced, and at the same time, the loss of ultrasonic echoes is reduced. During the detection process, the moving module 14 drives the ultrasonic detection component to slowly move on the titanium alloy bar to achieve full-section detection of the titanium alloy bar. The rubber belt 21 moves along the surface of the titanium alloy bar, and the friction roller 18 supports the rubber belt 21. Through the setting of the ultrasonic detection component, the technical problem of ultrasonic wave unable to detect gaps is solved, and the use and maintenance costs of the detection equipment are reduced.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in all respects, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A non-destructive testing device for internal defects of high-quality titanium alloy bars, characterized by: The invention comprises a feeder (1), a material changing slider (3), a material discharging base (4), an anti-collision platform (5), a clamping assembly, a truss guide rail (13), a moving module (14) and an ultrasonic detection assembly, wherein the material changing slider (3) is slidably mounted on the material discharging base (4), the feeder (1) is arranged above the material changing slider (3), the anti-collision platform (5) is mounted on one side of the material discharging base (4), the clamping assembly is mounted in the anti-collision platform (5), the truss guide rail (13) is located between the material discharging base (4) and the anti-collision platform (5), the truss guide rail (13) is raised by a bracket, the moving module (14) is mounted in the truss guide rail (13), the moving module (14) is connected to a control system via a circuit, and the ultrasonic detection assembly is mounted in the moving module (14).

2. According to claim 1, a nondestructive testing device for internal defects of high-quality titanium alloy bars is characterized by: The feeder (1) is provided with a material discharge chute at the bottom, the titanium alloy rod to be tested is located in the feeder (1), the material change slider (3) blocks the titanium alloy rod, and the bottom of the feeder (1) is provided with a plurality of vertical slide grooves on one side close to the anti-collision platform (5), a sliding baffle (2) is slidably installed in each vertical slide groove, and the sliding baffle (2) is provided with an inclination on the side facing the material discharge chute.

3. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 2 is characterized in that: A pair of first electric push rods (12) are mounted on the discharge base (4), and piston rods of the pair of first electric push rods (12) are connected to the material changing slider (3). A discharge trough is provided inside the discharge base (4), and a boss is provided on the side of the material changing slider (3) away from the anti-collision platform (5), and the boss blocks the titanium alloy rod in the discharge trough. A slope is provided on the side of the material changing slider (3) close to the anti-collision platform (5), and the boss side of the slope is higher than the side close to the anti-collision platform (5).

4. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 3 is characterized in that: The anti-collision platform (5) and the refueling slide block (3) are flush with each other at one end thereof, a gap is provided between the anti-collision platform (5) and the refueling slide block (3), and a 45° slope surface is provided on one side thereof where the anti-collision platform (5) and the refueling slide block (3) are close to each other, and a buffer felt is provided on the slope surface.

5. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 1 is characterized in that: The clamping assembly comprises a pair of return-bending clamp arms (6), a front rack (7) and a rear rack (8); the pair of return-bending clamp arms (6) are symmetrically arranged on both sides of the anti-collision platform (5); the two return-bending clamp arms (6) are slidably connected to the anti-collision platform (5); a rubber pad is arranged at one end of each return-bending clamp arm (6) located outside the anti-collision platform (5); the front rack (7) and the rear rack (8) are both located inside the anti-collision platform (5); and the front rack (7) and the rear rack (8) are respectively connected to the two return-bending clamp arms (6).

6. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 5 is characterized by: The clamping assembly further comprises a servo motor (9), a gear (10) and a rotating shaft (11); the servo motor (9), the gear (10) and the rotating shaft (11) are all mounted inside the anti-collision platform (5); the rotating shaft (11) is mounted on the motor shaft of the servo motor (9); the gear (10) is mounted on the rotating shaft (11); the gear (10) is located between the front rack (7) and the rear rack (8); the gear (10) is meshedly connected with the front rack (7) and the rear rack (8).

7. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 1 is characterized by: The ultrasonic detection assembly comprises a second electric push rod (15), a connecting block (16), a pair of sealing plates (17), and a rubber belt (21); the second electric push rod (15) is invertedly mounted on the bottom of the movable module (14); the connecting block (16) is mounted on the piston rod of the second electric push rod (15); an open groove is formed on the connecting block (16); a pair of sealing plates (17) are symmetrically mounted in the open grooves; the inner ring of the rubber belt (21) is provided with two sealing grooves; the two sealing grooves are in sliding contact with the two sealing plates (17) respectively; and the rubber belt (21) is connected to the sealing plate (17) in a sliding and sealing manner.

8. The nondestructive testing equipment for internal defects of high-quality titanium alloy bars according to claim 7 is characterized in that: The ultrasonic detection assembly further comprises four friction rollers (18) and an ultrasonic detector (19). The four friction rollers (18) are rotatably mounted on both sides of two sealing plates (17), respectively. The four friction rollers (18) are in contact with a rubber belt (21). The ultrasonic detector (19) is mounted between a pair of sealing plates (17). The ultrasonic detector (19) is connected to a control system via an electric circuit. A feeding hole (20) is provided on one of the sealing plates (17).

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