A non-destructive testing device for internal defects of high-quality titanium alloy bars

Abstract

The present invention discloses a non-destructive detection device for internal defects of high-quality titanium alloy bars, which relates to the technical field of sensor detection. The device includes a feeder, a material-changing slider, a discharge base, a collision prevention platform, a clamping assembly, a truss guide rail, a moving module, and an ultrasonic detection assembly. The material-changing slider is slidably installed on the discharge base. The feeder is arranged above the material-changing slider. The collision prevention platform is installed on one side of the discharge base. The clamping assembly is installed in the collision prevention platform. The truss guide rail is located between the discharge base and the collision prevention platform 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 detection assembly is installed in the moving module. 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 device are 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 Art

[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 property 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 relatively long propagation distance when propagating in solid media, but it is easy to cause wear when the probe moves in contact with titanium alloy, and it is not suitable for non-contact detection. Otherwise, the acoustic 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 is connected to the control system through a circuit. The ultrasonic testing assembly is installed in the moving module.

[0005] Further, a blanking chute is provided at the bottom of the feeder. The titanium alloy bar to be detected is located in the feeder. The material-changing slider blocks the titanium alloy bar. A plurality of vertical chutes are opened on one side of the bottom of the feeder close to the anti-collision platform. A sliding baffle is slidably installed in each vertical chute. The side of the sliding baffle facing the blanking chute has an inclination. The titanium alloy bar to be detected is fed into the feeder through the feeding device. The titanium alloy bar is discharged through the blanking chute of the feeder. Before the material-changing slider moves, the convex platform blocks the notch of the blanking chute, and the titanium alloy bar is blocked in the feeder.

[0006] Further, a pair of first electric push rods are installed on the discharge base. The piston rods of the pair of first electric push rods are connected to the material-changing slider. A discharge chute is opened inside the discharge base. A convex platform is provided on the side of the material-changing slider away from the anti-collision platform. The convex platform blocks the titanium alloy bar in the blanking chute. A slope is provided on the side of the material-changing slider close to the anti-collision platform. The convex platform 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. The pair of first electric push rods drive the material-changing slider to move. The material-changing slider moves in a 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 bar falls into the discharge base and rolls out from the discharge chute. After the convex platform moves, the titanium alloy bar falls onto the slope, but due to the blocking of the sliding baffle, the titanium alloy bar will not roll along the slope.

[0007] Further, the ends of the anti-collision platform and the material-changing slider close to each other are at the same height. There is a gap between the anti-collision platform and the material-changing slider. 45° slope surfaces are opened on the sides of the anti-collision platform and the material-changing slider close to each other. Buffer felts are provided on the slope surfaces. The pair of first electric push rods drive the material-changing slider to move back. The pressure exerted by the titanium alloy bar on the inclined surface of the sliding baffle decomposes into a component force moving into the vertical chute, so that the sliding baffle is squeezed into the vertical chute. The titanium alloy bar rolls along the slope after passing over the sliding baffle. The convex platform returns to block the notch of the blanking chute. The sliding baffle resets under the action of gravity. The titanium alloy bar rolls to the position where the 45° slope surface is opened between the anti-collision platform and the material-changing slider. 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 detected at the detection position.

[0008] Further, the clamping assembly includes a pair of bent-back clamping arms, a front rack and a rear rack. The pair of bent-back clamping arms are symmetrically arranged on both sides of the anti-collision platform. The two bent-back clamping arms are slidably connected to the anti-collision platform. A rubber pad is provided at one end of each bent-back clamping arm located outside the anti-collision platform. The front rack and the rear rack are both located inside the anti-collision platform. The front rack and the rear rack are respectively connected to the two bent-back clamping 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 clamping arms. The two ends of the titanium alloy bar between the anti-collision platform and the material-changing slider are clamped by the bending clamping arms to fix the position of the titanium alloy bar, and then the ultrasonic detection component is used to detect the titanium alloy bar.

[0010] Further, the ultrasonic detection component 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 ring of the rubber belt, and the two sealing grooves are respectively in sliding contact with the two sealing plates. The rubber belt is slidably and sealedly connected with the sealing plates. The second electric push rod pushes down to drive the rubber belt to move downward until it presses on the titanium alloy bar. The rubber belt is deformed 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 slidably and sealedly connected 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 component 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 component 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 component, 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:

[0013] 1. Use the 45° inclined planes provided on both the anti-collision platform and one side of the material-changing slider to position the titanium alloy bar to be detected. 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.

[0014] 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 intermittently is solved, and the use and maintenance costs of the detection equipment are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0016] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0017] Figure 3 Schematic diagram of the structure of the feeder part of the present invention;

[0018] Figure 4 Schematic diagram of the internal structure of the material-changing slider of the present invention;

[0019] Figure 5 Schematic diagram of the internal structure of the anti-collision platform of the present invention Figure 1 ;

[0020] Figure 6 Schematic diagram of the internal structure of the anti-collision platform of the present invention Figure 2 ;

[0021] Figure 7 Schematic diagram of the structure of the ultrasonic detection component part of the present invention;

[0022] 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 DESCRIPTION OF THE INVENTION

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Embodiment: As Figures 1 - 7 shown, 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 platform 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 platform 5 is installed on one side of the discharge base 4. The clamping assembly is installed in the collision prevention platform 5. The truss guide rail 13 is located between the discharge base 4 and the collision prevention platform 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. The ultrasonic testing assembly is installed in the moving module 14. A blanking groove is provided at the bottom of the feeder 1. 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 chutes are opened on one side of the bottom of the feeder 1 close to the collision prevention platform 5. A sliding baffle 2 is slidably installed in each vertical chute. The side of the sliding baffle 2 facing the blanking groove has a slope. The titanium alloy bar to be detected is fed into the feeder 1 through a feeding device. The titanium alloy bar is discharged 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.

[0025] A pair of first electric push rods 12 are installed on the discharge base 4. The piston rods of the pair of first electric push rods 12 are connected to the material changing slider 3. A discharge chute is provided inside the discharge base 4. A convex platform is provided on the 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 chute. A slope is provided on the 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 provided on the sides of the anti-collision platform 5 and the material changing slider 3 close to each other. Buffer felts are provided 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 a 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 discharge base 4 and roll out from the discharge chute. 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 chute 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 provided 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.

[0026] 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 provided 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.

[0027] 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 in sliding and sealing connection with 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.

[0028] 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. A coupling agent is filled in the area enclosed by the two sealing plates 17 and the rubber belt 21. The coupling agent can be supplemented through the feeding hole 20. Since the rubber belt 21 is in sealed sliding connection with 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 move slowly 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. 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 intermittently is solved, and the use and maintenance costs of the detection equipment are reduced.

[0029] 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 convex platform blocks the notch of the discharging groove, and the titanium alloy bar is blocked in the feeder 1.

[0030] The control system drives a pair of first electric push rods 12 to work, and the pair of first electric push rods 12 drives the material changing slider 3 to move, and 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 titanium alloy bar after detection falls into the discharge base 4 and rolls out of the discharge chute. After the boss moves, the titanium alloy bar falls onto the slope, but due to the obstruction of the sliding baffle 2, the titanium alloy bar will not roll along the slope, and the pair of first electric push rods 12 drives the material changing slider 3 to move back, and the titanium alloy bar The pressure applied to the inclined surface of the sliding baffle 2 decomposes into a component force moving toward the vertical slide groove, so that the sliding baffle 2 is squeezed into the vertical slide groove. After the titanium alloy bar passes over the sliding baffle 2, it rolls along the slope, and the boss returns to the notch of the discharge chute to block it. The sliding baffle 2 is reset under the action of gravity, and 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-groove positioning blocks to position the titanium alloy bar, so that the titanium alloy bar is at the detection position to be tested.

[0031] After the servo motor 9 is powered on, it drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the gear 10 to rotate. During the rotation process, the gear 10 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 return bending clamp arms 6, and the two ends of the titanium alloy bar between the anti-collision platform 5 and the material changing slider 3 are clamped by the return bending clamp arms 6 to fix the position of the titanium alloy bar, and then the titanium alloy bar is detected by the ultrasonic detection component.

[0032] The second electric push rod 15 pushes downward, driving the rubber belt 21 to move downward until it is pressed onto the titanium alloy rod. The rubber belt 21 is deformed under pressure and fits more closely to the titanium alloy rod. The area surrounded by the two sealing plates 17 and the rubber belt 21 is filled with coupling agent, which can be supplemented through the feeding hole 20. Due to the sealed sliding connection between the rubber belt 21 and 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 in the process of reaching the titanium alloy rod is reduced, and the loss of ultrasonic echo is also reduced. During the detection process, the mobile module 14 drives the ultrasonic detection component to move slowly on the titanium alloy rod to achieve full-section detection of the titanium alloy rod. The rubber belt 21 moves in contact with the surface of the titanium alloy rod, and the friction roller 18 supports the rubber belt 21. Through the setting of the ultrasonic detection component, the technical problem that ultrasonic waves cannot detect gaps is solved, and the use and maintenance costs of the detection equipment are reduced.

[0033] 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. Therefore, all changes falling 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 in that: It includes a feeder (1), a material-changing slider (3), a discharge base (4), a collision-proof platform (5), a clamping assembly, a truss guide rail (13), a moving module (14) and an ultrasonic detection assembly. The material-changing slider (3) is slidably mounted on the discharge base (4). The feeder (1) is arranged above the material-changing slider (3). The collision-proof platform (5) is mounted on one side of the discharge base (4). The clamping assembly is mounted in the collision-proof platform (5). The truss guide rail (13) is located between the discharge base (4) and the collision-proof platform (5), and the truss guide rail (13) is elevated by a bracket. The moving module (14) is mounted in the truss guide rail (13), and the moving module (14) is connected to the control system through a circuit. The ultrasonic detection assembly is mounted in the moving module (14). One end of the collision-proof platform (5) close to the material-changing slider (3) is flush in height. There is a gap between the collision-proof platform (5) and the material-changing slider (3). 45° slope surfaces are provided on the sides of the collision-proof platform (5) and the material-changing slider (3) close to each other. 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). A coupling agent is filled in the area surrounded by the two sealing plates (17) and the rubber belt (21).

2. The non-destructive testing equipment for internal defects of a high-quality titanium alloy bar according to claim 1, characterized in that: A blanking groove is provided at the bottom of the feeder (1). 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 provided on the side of the bottom of the feeder (1) close to the collision-proof platform (5). A sliding baffle (2) is slidably mounted in each vertical sliding groove. The side of the sliding baffle (2) facing the blanking groove has an inclination.

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

4. The non-destructive testing equipment for internal defects of a high-quality titanium alloy bar according to claim 3, characterized in that: A buffer felt is provided on the slope surface.

5. The non-destructive testing equipment for internal defects of a high-quality titanium alloy bar according to claim 1, characterized in that: 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 collision-proof platform (5). The two bent-back clamping arms (6) are slidably connected to the collision-proof platform (5). A rubber pad is provided at one end of each bent-back clamping arm (6) outside the collision-proof platform (5). The front rack (7) and the rear rack (8) are both located inside the collision-proof platform (5). The front rack (7) and the rear rack (8) are respectively connected to the two bent-back clamping arms (6).

6. The non-destructive testing device for internal defects of a high-quality titanium alloy bar according to claim 5, characterized in that: 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), and the gear (10) is meshed with both the front rack (7) and the rear rack (8).

7. An internal defect non-destructive testing device for high-quality titanium alloy bars according to claim 1, characterized in that: 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 formed in the connecting block (16). A pair of the sealing plates (17) are symmetrically installed in the opening groove. Two sealing grooves are formed in the inner ring of the rubber belt (21). The two sealing grooves are respectively in sliding contact with the two sealing plates (17). The rubber belt (21) is in sliding and sealing connection with the sealing plates (17).

8. An internal defect nondestructive testing device for high-quality titanium alloy bars according to claim 7, characterized in that: 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 formed in one of the sealing plates (17).

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