Detection device and detection method for testing strength of titanium alloy forge piece

Abstract

The invention discloses a detection device for testing strength of titanium alloy forgings, and belongs to the technical field of strength detection of titanium alloy forgings, the detection device comprises a supporting seat and a clamping seat arranged on the upper surface of the supporting seat, a sliding groove is formed in the upper surface of the supporting seat, a pulley assembly is slidably connected in the sliding groove, and the upper end of the pulley assembly extends to the upper surface of the supporting seat. The upper end of the pulley assembly is fixedly connected to the lower surface of the corresponding clamping seat, the upper surface of the supporting seat is fixedly connected with a supporting arm, an air cylinder is fixedly installed on the lower surface of the upper end of the supporting arm, and a detection block is arranged at the lower end of a telescopic part of the air cylinder. The titanium alloy plate detection device can detect a titanium alloy plate with the thickness within a certain range and the width within a certain range, pressure borne by the titanium alloy plate directly acts on the supporting seat in the detection process, long-term high-frequency use can be facilitated, in addition, it can be guaranteed that the axis of the detection block is always located on the middle vertical plane of the to-be-detected titanium alloy plate, and the detection efficiency is improved. Therefore, the accuracy of the detection result can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of titanium alloy detection, and particularly to a device and method for detecting the strength of titanium alloy forgings. Background Art

[0002] Titanium alloy forgings have been widely used in many fields such as aerospace, automotive, and medical due to their high strength, good corrosion resistance, and light weight. With the increasingly wide application of titanium alloy forgings, the requirements for their quality and performance are also getting higher and higher. As one of the key performance indicators of titanium alloy forgings, strength is directly related to their safety and reliability during use. Therefore, accurately detecting the strength of titanium alloy forgings is of great significance for ensuring product quality and meeting the needs of different application fields. To detect the strength of titanium alloy forgings, a device for detecting the strength of titanium alloy forgings has emerged. It can quickly detect the strength of titanium alloy forgings, facilitating the detection of whether the strength of titanium alloy forgings meets the requirements, and thus facilitating the screening of titanium alloy forgings according to their strength. When the existing device for detecting the strength of titanium alloy forgings is in use, there are still the following technical problems. For example, a titanium alloy strength detector that is easy to clamp, disclosed in the patent with the publication number CN220322902U, clamps the titanium alloy plate through the engagement of a push-pull rod and a positioning plate. However, after detecting the strength of the titanium alloy plate, the titanium alloy plate will be subjected to a large pressure, which will directly act on the push-pull rod and the positioning plate. Since the positioning plate is only engaged with the push-pull rod at one end and the other end is relatively long, it cannot withstand a large pressure and is extremely easy to break or bend, so it is not convenient for long-term high-frequency use. In addition, the fixed limit block on it has a concave structure with a fixed inner width. When cooperating with the positioning plate, it can only fix titanium alloy plates with a single thickness. Moreover, after the positioning plate and the fixed limit block cooperate to clamp the titanium alloy plate, the mid-perpendicular plane of the titanium alloy plate does not necessarily pass through the detection block, which is likely to lead to inaccurate detection results. Therefore, a device for detecting the strength of titanium alloy forgings is needed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a device and method for detecting the strength of titanium alloy forgings to solve the problems in the above-mentioned background art that the existing device for detecting the strength of titanium alloy forgings cannot be used for a long time at a high frequency, can only clamp titanium alloy plates with a single thickness, and is not conducive to ensuring the accuracy of detection results.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A strength detection device for testing titanium alloy forgings, comprising a support base and a clamping base arranged on its upper surface. A chute is provided on the upper surface of the support base, and a pulley assembly is slidably connected in the chute. The upper end of the pulley assembly extends to the upper surface of the support base, and the upper end of the pulley assembly is fixedly connected to the lower surface of the corresponding clamping base. A support arm is fixedly connected to the upper surface of the support base, and a cylinder is fixedly installed on the lower surface of the upper end of the support arm. A detection block is arranged at the lower end of the telescopic part of the cylinder. The telescopic part of the cylinder is connected to the two clamping bases through a centering mechanism. An adjustable clamping mechanism is installed on the clamping base.

[0005] Preferably, the two clamping bases are symmetric L-shaped structures for supporting the titanium alloy plate to be detected.

[0006] Preferably, the centering mechanism includes two piston tubes I whose one ends are shaft-connected to the upper surface of the support base. The inner side of the open end of the piston tube I is slidably connected without a seam to one end of the corresponding piston rod I. The other end of the piston rod I is shaft-connected to the outside of the corresponding clamping base. An overflow hole penetrating through the inner and outer sides of the piston tube I is provided on the piston tube I.

[0007] Preferably, the centering mechanism further includes two piston tubes II fixedly connected to the support arm. The inner side of the lower open end of the piston tube II is slidably connected without a seam to the upper end of the corresponding piston rod II. The middle part of the piston rod II is slidably sealed through the lower end of the piston tube II. The lower end of the piston tube II is connected through an elastic air pipe to the corresponding piston tube I in a penetrating manner. The two piston rods II are symmetrically fixedly connected to the upper surface of the support disc, and the support disc is fixedly penetrated by the telescopic part of the cylinder. The axis of the telescopic end of the cylinder and the axis of the support disc are collinear.

[0008] Preferably, the adjustable clamping mechanism includes an installation groove and a shaft groove arranged in the clamping base. The installation groove is arranged in a 7-shaped manner, and the upper end of the installation groove penetrates to the outside of the clamping base. A rocker is shaft-connected in the installation groove. Installation plates are installed on the opposite sides of the two clamping bases, and self-resetting pressing blocks are shaft-connected at equal intervals on the installation plates. A top plate is penetrated through the upper end of the installation groove, and the outer end of the top plate is in contact connection with the side surface of the self-resetting pressing block. The inner end of the top plate extends into one end of the nested plate in a movable manner, and the other end of the nested plate is in contact connection with the upper end of the rocker. A pressing wheel is installed at the lower end of each self-resetting pressing block.

[0009] Preferably, the ratio of the distance between the rotation center of the rocker and its upper and lower segments is not greater than 1 / 3.

[0010] Preferably, the adjustable clamping mechanism further includes triangular grooves provided at the inner ends of the top plates, and two symmetric triangular blocks are in sliding contact with the inner sides of each triangular groove. One side of the nested plate is penetrated by a regulating rod through a bearing, and one end of the regulating rod is connected to the inside of the nested plate through a bearing. The other end of the regulating rod movably penetrates to the side surface of the corresponding clamping seat. A strip-shaped groove communicating with the inside of the installation groove is provided on the side surface of the clamping seat for the regulating rod to movably penetrate through. A support block movably penetrates through each clamping seat, and extrusion grooves are uniformly provided on the support block. One end of a corresponding extrusion rod is in contact and sliding connection with each extrusion groove. The other end of the extrusion rod movably extends into the installation groove, and the other end of the extrusion rod is in contact connection with the lower end of the rocker. A self-resetting shaft rod is connected to the shaft groove through a bearing, and the self-resetting shaft rod is connected to the support block through a tooth engagement assembly. Two tooth engagement assemblies are symmetrically provided on each self-resetting shaft rod. The tooth engagement assembly includes teeth and gears, wherein the gears are meshed and connected to the self-resetting shaft rod, and the teeth are uniformly provided on the side surface of the support block.

[0011] Preferably, the regulating rod penetrates through the triangular block in a threaded manner, and the thread directions of the regulating rod penetrating through the two triangular blocks in the same group are opposite, so that when the regulating rod rotates, the two triangular blocks in the same group move towards or away from each other.

[0012] Preferably, the thickness of the triangular block matches the inner height of the nested plate to limit the triangular block to prevent it from rotating.

[0013] A method for detecting the strength of a titanium alloy forging includes the following steps: Step 1: Place the titanium alloy plate to be detected on two support blocks. Due to the gravity of the titanium alloy plate, the support blocks will move downward, and then the extrusion rod will be extruded through the extrusion groove. The extrusion rod moves under extrusion, thereby extruding the lower end of the rocker, causing the upper end of the rocker to extrude the nested plate, prompting the top plate to extrude the self-resetting pressing block. After being extruded, the self-resetting pressing block will rotate, causing the pressing wheel to rotate and extruding and clamping the titanium alloy plate. During the above process, as the support block moves downward, the self-resetting shaft rod will be prompted to rotate through the tooth engagement assembly. Step 2: Start the air cylinder, and its telescopic part drives the detection block to move downward. During the downward movement of the telescopic part of the air cylinder, the piston rod two is driven to move downward through the support disc, thereby squeezing the gas in the piston tube two. At this time, the air pressure in the piston tube one will be increased through the elastic air pipe, so that the two piston rods one respectively push the two clamping seats to move, thereby improving the stability of the clamping seats supporting the titanium alloy plate. After the telescopic part of the air cylinder drives the detection block to move downward until it contacts the titanium alloy plate and then continues to move downward, the strength of the titanium alloy plate can be detected through the detection block. Step 3: When the titanium alloy plate needs to be removed, only rotate the adjusting rod to drive the two triangular blocks in the same group to approach each other, so that the top plate can move into the nested plate. Then, with the self-resetting function of the self-resetting pressing block, the pressing wheel will no longer press the titanium alloy plate. At this time, the tested titanium alloy plate can be directly removed.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The testing device for the strength of titanium alloy forgings can detect titanium alloy plates with a certain thickness range and a certain width range. During the detection process, the pressure on the titanium alloy plate directly acts on the support seat, facilitating long-term and high-frequency use. In addition, it can ensure that the axis of the detection block is always on the central vertical plane of the titanium alloy plate to be detected, which helps to improve the accuracy of the detection results: 1. By rotating the adjusting rod, the distance between the two triangular blocks in the same group can be changed. Furthermore, when the support block directly supports on the upper surface of the support seat, the degree of extrusion on the self-resetting pressing block can be changed, facilitating the clamping and fixing of titanium alloy plates with a certain thickness range; 2. Through the centering mechanism and the slidable setting of the clamping seat on the support seat, it can not only ensure that the axis of the detection block is always on the central vertical plane of the titanium alloy plate to be detected to improve the accuracy of the detection results, but also enable the strength detection device to detect titanium alloy plates with a certain width range. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is of the present invention Figure 1 the enlarged structural schematic diagram of point A in Figure 3 is the sectional connection structural schematic diagram of the piston tube I of the present invention; Figure 4 is of the present invention Figure 3 the enlarged structural schematic diagram of point B in Figure 5 is the partial sectional structural schematic diagram of the present invention; Figure 6 is of the present invention Figure 5 the enlarged structural schematic diagram of point C in Figure 7 is the partial longitudinal sectional connection structural schematic diagram of the clamping seat of the present invention; Figure 8 is of the present invention Figure 7 the enlarged structural schematic diagram of point D in Figure 9 is the partial transverse sectional connection structural schematic diagram of the clamping seat of the present invention; Figure 10 is of the present invention Figure 9 the enlarged structural schematic diagram of point E in Figure 11 Schematic diagram of the connection structure between the clamping seat and the support block of the present invention; Figure 12 For the present invention Figure 11 Schematic diagram of the enlarged structure at point F in the present invention; Figure 13 Partial sectional view structure diagram of the clamping seat of the present invention; Figure 14 For the present invention Figure 13 Schematic diagram of the enlarged structure at point G in the present invention.

[0016] In the figure: 1, support base; 2, sliding groove; 3, clamping seat; 4, support arm; 5, cylinder; 6, detection block; 7, mounting plate; 8, self - resetting pressure block; 9, support block; 10, piston tube one; 11, elastic air pipe; 12, overflow air hole; 13, piston rod one; 14, piston tube two; 15, piston rod two; 16, support disc; 17, pressure wheel; 18, pulley assembly; 19, extrusion groove; 20, extrusion rod; 21, mounting groove; 22, rocker; 23, top plate; 24, triangular groove; 25, triangular block; 26, adjusting rod; 27, nested plate; 28, shaft groove; 29, self - resetting shaft rod; 30, tooth - meshing assembly. Specific embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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 of 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.

[0018] Please refer to Figures 1-14 , the present invention provides the following technical solutions: Embodiment 1: To solve the problem that the previous strength detection device for titanium alloy forgings cannot ensure that the axis of the detection structure is on the central vertical plane of the titanium alloy plate, thus unable to ensure the accuracy of the detection result, the following technical solutions are provided. Specifically, a strength detection device for testing titanium alloy forgings includes a support base 1 and a clamping seat 3 arranged on its upper surface. A sliding groove 2 is provided on the upper surface of the support base 1, and a pulley assembly 18 is slidably connected in the sliding groove 2. The upper end of the pulley assembly 18 extends to the upper surface of the support base 1, and the upper end of the pulley assembly 18 is fixedly connected to the lower surface of the corresponding clamping seat 3. A support arm 4 is fixedly connected to the upper surface of the support base 1, and a cylinder 5 is fixedly installed on the lower surface of the upper end of the support arm 4. A detection block 6 is provided at the lower end of the telescopic part of the cylinder 5, and the telescopic part of the cylinder 5 is connected to the two clamping seats 3 through a centering mechanism.

[0019] The two clamping seats 3 are of a symmetrical L-shaped structure and are used to support the titanium alloy plate to be detected. The centering mechanism includes two first piston tubes 10 whose one ends are pivotally connected to the upper surface of the support seat 1. The inner side of the open end of the first piston tube 10 is slidably connected without a gap to one end of the corresponding first piston rod 13. The other end of the first piston rod 13 is pivotally connected to the outer side of the corresponding clamping seat 3. An air overflow hole 12 penetrating through the inner and outer sides is provided on the first piston tube 10. The centering mechanism further includes two second piston tubes 14 fixedly connected to the support arm 4. The inner side of the lower open end of the second piston tube 14 is slidably connected without a gap to the upper end of the corresponding second piston rod 15. The middle part of the second piston rod 15 is slidably sealed through the lower end of the second piston tube 14. The lower end of the second piston tube 14 is connected to the corresponding first piston tube 10 through an elastic air pipe 11. The two second piston rods 15 are symmetrically and fixedly connected to the upper surface of the support disk 16. The support disk 16 is fixedly penetrated by the telescopic part of the air cylinder 5. The axis of the telescopic end of the air cylinder 5 and the axis of the support disk 16 are collinear. During use, by starting the air cylinder 5, its telescopic end drives the detection block 6 to move downward. Synchronously, the support disk 16 will be driven to move downward, and then the second piston rod 15 will move downward relative to the second piston tube 14. During the process of the second piston rod 15 moving downward relative to the second piston tube 14, the gas in the second piston tube 14 will be transported to the first piston tube 10 through the elastic air pipe 11, causing the two first piston rods 13 to respectively push the two clamping seats 3 to move closer to each other, so as to ensure that the axis of the detection block 6 is always on the central vertical plane of the titanium alloy plate to be detected, which is beneficial to ensuring the accuracy of the detection result. In addition, during the above process, due to the elasticity of the elastic air pipe 11, when the second piston rod 15 continues to move downward and the clamping seat 3 no longer moves, the elastic air pipe 11 bulges, so that the two clamping seats 3 can clamp titanium alloy plates with widths within a certain range.

[0020] Embodiment 2: To solve the problem that the previous strength detection device for titanium alloy forgings cannot detect titanium alloy plates with different thicknesses, the following technical solution is provided. Specifically, an adjustable clamping mechanism is installed on the clamping seat 3.

[0021] The adjustable clamping mechanism includes an installation groove 21 and a shaft groove 28 arranged in the clamping seat 3. The installation groove 21 is arranged in a shape of '7', and the upper end of the installation groove 21 penetrates to the outside of the clamping seat 3. A rocker 22 is pivotally connected in the installation groove 21. Installation plates 7 are installed on one side of each of the two clamping seats 3 opposite to each other, and self-resetting pressing blocks 8 are pivotally connected to the installation plates 7 at equal intervals. The upper end of the installation groove 21 is provided with a top plate 23 penetrating through it, and the outer end of the top plate 23 is in contact connection with the side surface of the self-resetting pressing block 8. The inner end of the top plate 23 extends into one end of the nested plate 27 movably, and the other end of the nested plate 27 is in contact connection with the upper end of the rocker 22. A pressing wheel 17 is installed at the lower end of each self-resetting pressing block 8. The ratio of the distance between the rotation center of the rocker 22 and its upper and lower sections is not greater than 1 / 3. The adjustable clamping mechanism further includes triangular grooves 24 arranged at the inner end of the top plate 23, and two symmetrical triangular blocks 25 are in sliding contact with the inner side of each triangular groove 24. One side of the nested plate 27 is penetrated by a regulating rod 26 through a bearing, and one end of the regulating rod 26 is pivotally connected to the inside of the nested plate 27 through a bearing. The other end of the regulating rod 26 extends through the side surface of the corresponding clamping seat 3 movably. A strip-shaped groove is arranged on the side surface of the clamping seat 3 and penetrates through to the inside of the installation groove 21 for the regulating rod 26 to extend through movably. A supporting block 9 also penetrates through each clamping seat 3 movably, and pushing grooves 19 are evenly arranged on the supporting block 9. One end of a corresponding pushing rod 20 is in contact and sliding connection with each pushing groove 19. The other end of the pushing rod 20 extends into the installation groove 21 movably, and the other end of the pushing rod 20 is in contact connection with the lower end of the rocker 22. A self-resetting shaft rod 29 is pivotally connected in the shaft groove 28 through a bearing, and the self-resetting shaft rod 29 is connected to the supporting block 9 through a tooth-engagement assembly 30. Two tooth-engagement assemblies 30 are symmetrically arranged on each self-resetting shaft rod 29. The tooth-engagement assembly 30 includes teeth and gears, wherein the gears are meshed and connected to the self-resetting shaft rod 29, and the teeth are evenly arranged on the side surface of the supporting block 9. During use, the titanium alloy plate is supported on the upper surface of the supporting block 9. Due to its own weight, the supporting block 9 can be promoted to move downward until it contacts the upper surface of the supporting seat 1, so that the titanium alloy plate is directly supported on the upper surface of the supporting seat 1 through the supporting block 9, ensuring the stability of the titanium alloy plate during detection. During the downward movement of the supporting block 9, the pushing rod 20 can be extruded through the pushing groove 19, causing the rocker 22 to rotate. Furthermore, the top plate 23 can be used to extrude the self-resetting pressing block 8, causing the self-resetting pressing block 8 to rotate. At this time, the pressing wheel 17 at the lower end of the self-resetting pressing block 8 will press on the titanium alloy plate. During the detection of the titanium alloy plate, it will be subjected to extrusion and undergo certain deformation, and its end will also have a slight displacement. The pressing wheel 17 can facilitate the movement of the end of the titanium alloy plate by a small distance without damaging the adjustable clamping mechanism. After the detection is completed, by rotating the regulating rod 26, the two triangular blocks 25 in the same group can be made to approach each other, so that the top plate 23 can move relative to the nested plate 27 and move into it. Furthermore, it can cooperate with the self-resetting function of the self-resetting pressing block 8 to make the pressing wheel 17 rotate and reset along with the self-resetting pressing block 8.Instead of pressing against the titanium alloy plate, the inspected titanium alloy plate can then be removed. In the above process, the degree to which the top plate 23 presses against the self - resetting pressing block 8 can be adjusted by the adjusting rod 26. Thus, titanium alloy plates with different thicknesses within a certain range can be clamped. By recording the number of turns the adjusting rod 26 rotates, when inspecting titanium alloy plates of the same size, the adjusting rod 26 can be directly rotated forward by a fixed number of turns to make the titanium alloy plate press against the supporting block 9 and be automatically clamped, and the adjusting rod 26 can be rotated backward by a fixed number of turns to remove the inspected titanium alloy plate from the inspection device.

[0022] The adjusting rod 26 is threadedly penetrated through the triangular block 25, and the thread directions of the adjusting rod 26 penetrating through the two triangular blocks 25 in the same group are opposite. When the adjusting rod 26 rotates, the two triangular blocks 25 in the same group move towards or away from each other. The thickness of the triangular block 25 matches the inner height of the nested plate 27, which is used to limit the triangular block 25 to prevent it from rotating.

[0023] A method for detecting the strength of titanium alloy forgings includes the following steps: Step 1: Place the titanium alloy plate to be inspected on the two supporting blocks 9. Due to the gravity of the titanium alloy plate, the supporting block 9 will move downward, and then the pushing rod 20 will be squeezed through the pushing groove 19. The pushing rod 20 moves under extrusion, thus squeezing the lower end of the rocker 22, causing the upper end of the rocker 22 to squeeze the nested plate 27, prompting the top plate 23 to squeeze the self - resetting pressing block 8. The self - resetting pressing block 8 will rotate after being squeezed, causing the pressing wheel 17 to rotate and squeeze the titanium alloy plate for clamping. In the above process, as the supporting block 9 moves downward, the self - resetting shaft rod 29 will be prompted to rotate through the tooth - meshing assembly 30. Step 2: Start the cylinder 5, and its telescopic part drives the detection block 6 to move downward. During the downward movement of the telescopic part of the cylinder 5, the piston rod two 15 is driven to move downward through the supporting disk 16, thereby squeezing the gas in the piston tube two 14. At this time, the air pressure in the piston tube one 10 will increase through the elastic air pipe 11, causing the two piston rods one 13 to respectively push the two clamping seats 3 to move, thereby improving the stability of the clamping seats 3 in supporting the titanium alloy plate. After the telescopic part of the cylinder 5 drives the detection block 6 to move downward until it contacts the titanium alloy plate and then continues to move downward, the strength of the titanium alloy plate can be detected through the detection block 6. Step 3: When it is necessary to remove the titanium alloy plate, only need to rotate the adjusting rod 26 to drive the two triangular blocks 25 in the same group to approach each other, so that the top plate 23 can move into the nested plate 27. With the self - reset function of the self - resetting pressing block 8, the pressing wheel 17 will no longer squeeze the titanium alloy plate. At this time, the inspected titanium alloy plate can be directly removed.

[0024] The content not detailedly described in this specification belongs to the prior art well-known to those of ordinary skill in the art.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for testing titanium alloy forgings, comprising a support seat (1) and a clamping seat (3) arranged on the upper surface thereof, characterized in that: The upper surface of the support seat (1) is provided with a slide groove (2), and a pulley assembly (18) is slidably connected in the slide groove (2), the upper end of the pulley assembly (18) extends to the upper surface of the support seat (1), and the upper end of the pulley assembly (18) is fixedly connected to the lower surface of the corresponding clamping seat (3), the upper surface of the support seat (1) is fixedly connected to a support arm (4), and a cylinder (5) is fixedly installed on the lower surface of the upper end of the support arm (4), the lower end of the telescopic part of the cylinder (5) is provided with a detection block (6), the telescopic part of the cylinder (5) is connected to the two clamping seats (3) through a centering mechanism, and an adjustable clamping mechanism is installed on the clamping seat (3).

2. A titanium alloy forging strength testing device according to claim 1, characterized in that: The two clamping seats (3) are symmetrical L-shaped structures and are used to support the titanium alloy plate to be tested.

3. A titanium alloy forging strength detection device according to claim 2, characterized in that: The centering mechanism comprises two piston tubes (10) with one end axially connected to the upper surface of the support seat (1), and one end of a corresponding piston rod (13) is seamlessly slidably connected to the inner side of the open end of the piston tube (10), and the other end of the piston rod (13) is axially connected to the outer side of the corresponding clamping seat (3), and the piston tube (10) is provided with an overflow hole (12) that passes through the inner and outer sides thereof.

4. A titanium alloy forging strength testing device according to claim 3, characterized in that: The centering mechanism also includes two piston tubes (14) fixedly connected to the support arm (4), and the inner side of the lower end opening of the piston tube (14) is seamlessly slidably connected to the upper end of the corresponding piston rod (15), the middle part of the piston rod (15) is sealed and slidably penetrates the lower end of the piston tube (14), and the lower end of the piston tube (14) is connected to the corresponding piston tube (10) through an elastic air supply pipe (11), the two piston rods (15) are symmetrically fixedly connected to the upper surface of the support plate (16), and the support plate (16) is fixedly penetrated by the telescopic part of the cylinder (5), and the axis of the telescopic end of the cylinder (5) and the axis of the support plate (16) are collinear.

5. A titanium alloy forging strength testing device according to claim 4, characterized in that: The adjustable clamping mechanism comprises a mounting groove (21) and an axis groove (28) arranged in the clamping seat (3); the mounting groove (21) is arranged in a 7-shaped manner, and the upper end of the mounting groove (21) passes through the outside of the clamping seat (3); the inner axis of the mounting groove (21) is connected to a seesaw (22); mounting plates (7) are installed on opposite sides of the two clamping seats (3), and the axes of the mounting plates (7) are connected to self-resetting pressure blocks (8) at equal intervals; a top plate (23) is arranged through the upper end of the mounting groove (21), and the outer end of the top plate (23) is contact-connected to the side of the self-resetting pressure block (8); the inner end of the top plate (23) movably extends into one end of the nesting plate (27), and the other end of the nesting plate (27) is contact-connected to the upper end of the seesaw (22); and a pressure wheel (17) is installed at the lower end of each of the self-resetting pressure blocks (8).

6. A titanium alloy forging strength testing device according to claim 5, characterized in that: The ratio of the distance between the rotation center of the seesaw (22) and its upper and lower sections is no greater than 1 / 3.

7. A titanium alloy forging strength testing device according to claim 6, characterized in that: The adjustable clamping mechanism further comprises a triangular groove (24) provided at the inner end of the top plate (23), and the inner side of each triangular groove (24) is slidably contacted with two symmetrical triangular blocks (25), a bearing on one side of the nesting plate (27) extends through an adjusting rod (26), and a bearing on one end of the adjusting rod (26) is connected to the inside of the nesting plate (27), and the other end of the adjusting rod (26) movably penetrates the side of the corresponding clamping seat (3), and the side of the clamping seat (3) is provided with a strip groove penetrating into the inside of the mounting groove (21) for being movably penetrated by the adjusting rod (26), and each of the clamping seats (3) is also movably penetrated by a support block (9), and the support block (9) is evenly provided with pushing grooves ( 19), and each pushing groove (19) is slidably connected with one end of a corresponding pushing rod (20), the other end of the pushing rod (20) is movably extended into the mounting groove (21), and the other end of the pushing rod (20) is contact-connected with the lower end of the rocker (22), the shaft groove (28) is connected with a self-resetting shaft rod (29) by a bearing, and the self-resetting shaft rod (29) is connected to the support block (9) through a tooth meshing assembly (30), two tooth meshing assemblies (30) are symmetrically arranged on each self-resetting shaft rod (29), and the tooth meshing assembly (30) includes teeth and gears, wherein the gears are meshingly connected to the self-resetting shaft rod (29), and the teeth are evenly arranged on the side of the support block (9).

8. The device for testing the strength of titanium alloy forgings according to claim 7, characterized in that: The adjusting rod (26) is threadedly disposed through the triangular block (25), and the threads of the adjusting rod (26) that penetrate the two triangular blocks (25) in the same group have opposite rotation directions, so that when the adjusting rod (26) rotates, the two triangular blocks (25) in the same group move towards or away from each other.

9. The device for testing the strength of titanium alloy forgings according to claim 8, characterized in that: The thickness of the triangular block (25) matches the inner height of the nesting plate (27), and is used to limit the position of the triangular block (25) to prevent it from rotating.

10. A method for testing the strength of titanium alloy forgings, characterized in that: The steps include: Step 1: placing the titanium alloy plate to be tested on two support blocks (9), and the gravity of the titanium alloy plate will cause the support blocks (9) to move downward, thereby squeezing the pushing rod (20) through the pushing groove (19); The pushing rod (20) is moved by being squeezed, thereby squeezing the lower end of the seesaw (22), causing the upper end of the seesaw (22) to squeeze the nesting plate (27), prompting the top plate (23) to squeeze the self-resetting pressing block (8), and the self-resetting pressing block (8) rotates after being squeezed, thereby causing the pressing wheel (17) to rotate, thereby squeezing and clamping the titanium alloy plate; In the above process, the support block (9) moves downward, and the tooth meshing assembly (30) causes the self-resetting shaft (29) to rotate; Step 2: Start the cylinder (5) so that its telescopic portion drives the detection block (6) to move downward. During the downward movement of the telescopic portion of the cylinder (5), the piston rod 2 (15) is driven downward by the support plate (16), thereby squeezing the gas in the piston tube 2 (14). At this time, the gas pressure in the piston tube 1 (10) is increased through the elastic gas pipe (11), so that the two piston rods 1 (13) respectively push the two clamping seats (3) to move, thereby improving the stability of the clamping seats (3) in supporting the titanium alloy plate; The telescopic portion of the cylinder (5) drives the detection block (6) to move downward until it contacts the titanium alloy plate, and then continues to move downward, so that the strength of the titanium alloy plate can be detected through the detection block (6); Step 3: When it is necessary to remove the titanium alloy plate, it is only necessary to rotate the adjustment rod (26) to drive the two triangular blocks (25) of the same group closer to each other, so that the top plate (23) can move toward the inside of the nesting plate (27), and then cooperate with the self-resetting function of the self-resetting pressure block (8) to make the pressure wheel (17) no longer squeeze the titanium alloy plate. At this time, the titanium alloy plate after inspection can be directly removed.

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