Titanium-based noble metal anode argon arc detection device

Abstract

The invention discloses a titanium-based noble metal anode argon arc detection device, and relates to the technical field of titanium tube anode detection. The titanium-based precious metal anode argon arc detection device comprises a detection table, a plurality of supports are slidably arranged on the upper end face of the detection table at equal intervals through sliding parts, each support is provided with a containing part used for containing a titanium tube anode, and a self-adjusting pushing part comprises a plurality of rail grooves which are formed in the upper end face of the detection table at equal intervals and are in one-to-one correspondence with the supports in position. According to the titanium tube anode plugging device, the plugging strokes of a plurality of titanium tube anodes with different lengths can be adjusted in a self-adaptive mode, the plugging thrust on the titanium tube anodes is basically kept consistent, the plugging force applied to the titanium tube anodes can be adjusted in a self-adaptive mode, and the plugging force applied to the titanium tube anodes can be adjusted in a self-adaptive mode. Strokes do not need to be set for a single titanium tube respectively, blocking can be conducted from the inner side and the outer side of the anode port of the titanium tube at the same time, blocking stress is more uniform and stable, and therefore stability and accuracy of welding seam pressure maintaining detection are improved.

Description

A titanium-based noble metal anode argon arc detection device Technical Field

[0001] This invention relates to the field of titanium tube anode detection technology, specifically to a titanium-based noble metal anode argon arc detection device. Background Technology

[0002] Titanium-based noble metal anodes, or simply titanium anodes, are electrode materials formed by coating industrial pure titanium with a platinum group metal oxide coating. This coating possesses excellent conductivity, strong corrosion resistance, and high electrocatalytic performance, making it widely used in the manufacture of electrochemical equipment such as batteries, electrolyzers, and water electrolysis devices. Due to the special material properties of titanium anodes, they are typically welded using argon arc welding during processing. Titanium anodes come in various structural forms, including mesh, plate, strip, and tubular, with tubular titanium anodes being one of the more commonly used. In practical applications, one end of the titanium tube is usually welded to a titanium end cap using argon arc welding to form a closed structure. After welding, the weld seam must be tested for sealing to ensure its reliability.

[0003] Because titanium tube anodes come in various structural forms, such as straight tubes and U-shaped tubes, depending on actual application requirements, and because titanium tubes have various length specifications, existing plugging testing equipment for pressure holding tests of titanium tube anode welds typically uses a screw-driven method to move a row of plugging heads synchronously. This causes the plugging heads to press axially against the ends of the titanium tubes, thereby sealing the interior and performing pressure holding tests. When simultaneously testing multiple titanium tubes, this type of equipment usually requires the tubes to have the same length. Only when the titanium tubes are of consistent length can the row of plugging heads achieve synchronous and effective sealing. When the lengths of the multiple titanium tubes are inconsistent... Existing equipment struggles to reliably seal all titanium tube ends in a single inspection, typically requiring grouping by length and conducting inspections in stages, resulting in low efficiency and poor adaptability. While there are methods to achieve length adaptability by sequentially installing multiple rows of sealing heads on a row of spring telescopic rods, during the sealing movement, the sealing head located on the longer titanium tube will continuously apply pressure to the end of the shorter titanium tube before it touches the corresponding end. This pressure increases with the sealing stroke, easily causing deformation or even damage to the end of slender and thin-walled titanium tubes.

[0004] Meanwhile, existing titanium tube plugging methods mostly use conical plugs directly inserted into the titanium tube port to form a seal. The plugging force mainly relies on the radial expansion force generated by axial advancement. For titanium tubes with thin walls, the port is prone to local expansion and deformation during the plugging process. Moreover, since the sealing pressure between the conical plug and the inner wall of the titanium tube is unidirectional, the overall sealing reliability is generally poor, and there is a risk of air leakage, which affects the accuracy of weld pressure testing results. Summary of the Invention

[0005] This invention provides a titanium-based precious metal anode argon arc testing device, which solves the technical problems of existing titanium tube anode weld pressure holding testing equipment, which usually requires the titanium tubes to be of the same length when testing multiple titanium tubes at the same time. When the titanium tubes are of different lengths, they need to be tested in groups and in batches, resulting in low testing efficiency and poor adaptability. At the same time, existing sealing methods mostly achieve sealing by unidirectional radial expansion of conical sealing plugs, which is prone to expansion deformation of thin-walled titanium tubes. In addition, the sealing force direction is singular, the reliability is limited, and there is a risk of air leakage, which affects the accuracy of weld pressure holding test results.

[0006] This invention provides a titanium-based precious metal anode argon arc detection device, comprising a detection platform. The upper surface of the detection platform is equidistantly mounted with several supports via a sliding part. Each support has a placement part for placing a titanium tube anode. Each support has a sliding support part on its front end face, and each support part has a double plug for progressively sealing the titanium tube anode port. A self-adjusting pushing part, linked to the support part, is installed at the front of the upper surface of the detection platform. The self-adjusting pushing part includes several grooves equidistantly formed on the upper surface of the detection platform and corresponding to the positions of each support. A sliding frame is slidably connected in each groove, and a movable pulley is rotatably connected between the upper and lower opposite sides of the sliding frame. The upper surface of the detection platform is rotatably connected between adjacent grooves. There is a fixed pulley, and a sliding assembly is provided between the sliding frame and the support. A pull rope is fixedly connected to the left side of the upper surface of the testing platform. The right end of the pull rope extends from right to left, passing through each movable pulley and the fixed pulley in sequence, and then extends to the right side of the testing platform. A winding assembly is provided on the right side of the testing platform for winding and tightening the right end of the pull rope. During testing, the winding assembly is controlled to tighten the pull rope, so that the pull rope will produce displacement changes under the action of the movable pulley and the fixed pulley, thereby driving each sliding frame to move synchronously. The sliding frame drives the corresponding support to move along the axial direction of the titanium tube anode through the sliding assembly, so as to adaptively match the movement stroke of the support according to the different lengths of the titanium tube anode to be tested, thereby ensuring that the sealing force applied by each double plug to the end of the titanium tube anode is consistent.

[0007] In one possible implementation, the sliding part includes a plurality of sliding grooves equidistantly opened on the upper surface of the testing table along the transverse direction of the testing table. Each sliding groove group is slidably connected to a slider group, and the slider group is fixedly connected to the lower surface of a corresponding support.

[0008] In one possible implementation, the placement part includes a baffle fixedly connected to the rear of the upper end face of the support and two U-shaped brackets symmetrically fixedly connected to the upper end face of the support by means of fixed columns.

[0009] In one possible implementation, the support includes a mounting groove formed on the front end face of the support and a T-shaped frame slidably connected in the mounting groove, with a return spring fixedly connected between the T-shaped frame and the mounting groove.

[0010] In one possible implementation, the double plug includes an outer cylinder that is fixedly connected to the vertical section of the T-shaped frame and has an open rear end. An inner cylinder is slidably connected inside the outer cylinder. Several No. 1 top springs are fixedly connected circumferentially between the outer cylinder and the inner cylinder at equal intervals. A conical plug is slidably connected inside the inner cylinder. A No. 2 top spring is fixedly connected between the inner cylinder and the conical plug. An elastic conical cover is fixedly connected between the conical outer wall of the conical plug and the inner wall of the inner cylinder. Several arc-shaped grooves are circumferentially equidistantly opened on the inner cylinder. A pressure plate is fixedly connected to the front wall of each arc-shaped groove. A wedge-shaped block for cooperating with the outer cylinder is fixedly connected to the side of the pressure plate away from the axis of the inner cylinder. An air inlet pipe that slides through the inner cylinder and the outer cylinder is fixedly connected inside the conical plug by an interlocking method. A pressure sensor is connected to the outside of the air inlet pipe.

[0011] In one possible implementation, the sliding assembly includes a guide frame fixedly connected to the upper part of the sliding frame by embedding, and a guide post slidably connected to the lower end face of the T-shaped frame is fixedly connected to the guide frame.

[0012] In one possible implementation, the winding assembly includes a drive motor fixedly connected to the detection table by embedding, a winding wheel fixedly connected to the end of the output shaft of the drive motor, and the right end of the pull rope wound and fixedly connected to the outside of the winding wheel.

[0013] In one possible implementation, a guide plate is fixedly connected to the upper end of the vertical section of the U-shaped bracket, and two guide plates located on the same U-shaped bracket are distributed in a V-shape.

[0014] As can be seen from the above technical solution, the present invention has the following advantages: In the present invention, by adopting a combination structure of pull ropes distributed along an S-shaped path and multiple movable pulleys and fixed pulleys, the movable pulleys will adaptively generate different movement strokes according to the length of the corresponding titanium tube anode during the tightening process of the pull rope. The movable pulley corresponding to the longer titanium tube anode will contact its end earlier and enter the sealing state, while the movable pulley corresponding to the shorter titanium tube anode will continue to move until the sealing is completed. Thus, under the same pull rope drive, the adaptive stroke adjustment of multiple titanium tube anodes of different lengths and the output of basically consistent sealing thrust are achieved. There is no need to set the stroke for each individual titanium tube. It is applicable to titanium tube anodes with two different structural forms, namely straight tubes and U-shaped tubes. At the same time, during the sealing process, excessive top pressure will not be continuously applied to the end of the longer titanium tube anode, which effectively avoids the problem of extrusion deformation damage to the end of the slender and thin-walled titanium tube, and improves the stability and reliability of the detection process.

[0015] In this invention, through the coordinated operation of the outer cylinder, inner cylinder, conical plug, elastic conical cover, pressure plate, and wedge block in the double plug, sealing forces can be applied simultaneously from both the inner and outer sides of the titanium tube anode port when sealing it. This results in a more uniform and stable distribution of sealing force, effectively avoiding the problem of local expansion and deformation of the thin-walled titanium tube port caused by the existing single conical plugging method during the sealing process. At the same time, the double plugging structure improves the sealing strength and reliability of the titanium tube anode port, reduces the risk of air leakage during the sealing process, and thus improves the accuracy and stability of the weld pressure test results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 is a schematic diagram of the structure of the titanium-based noble metal anode argon arc detection device provided by the present invention.

[0018] Figure 2 is a cross-sectional schematic diagram of the support installation structure provided by the present invention.

[0019] Figure 3 is a schematic diagram of the connection structure between the guide post and the guide frame provided by the present invention.

[0020] Figure 4 is a schematic cross-sectional view of the double plug structure provided by the present invention.

[0021] Figure 5 shows the state diagram of the present invention when multiple different titanium tube anodes are detected simultaneously.

[0022] Figure 6 shows the state changes when the double plug provided by the present invention seals the anode port of the titanium tube.

[0023] The above-mentioned attached drawings include the following reference numerals: 1. Testing table; 2. Support; 3. Support part; 31. Mounting groove; 32. T-shaped frame; 4. Double plug; 41. Outer cylinder; 42. Inner cylinder; 43. No. 1 top spring; 44. Conical plug; 45. No. 2 top spring; 46. Elastic conical cover; 47. Pressure plate; 48. Wedge block; 49. Air inlet pipe; 410. Air pressure sensor; 5. Self-adjusting push part; 51. Rail groove; 52. Sliding frame; 53. Moving pulley; 54. Fixed pulley; 55. Pull rope; 56. Guide frame; 57. Guide column; 58. Drive motor; 59. Rewinding wheel; 6. Slide group; 7. Baffle; 8. U-shaped bracket. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Please refer to Figure 1. The present invention provides a technical solution: a titanium-based precious metal anode argon arc detection device, including a detection platform 1. Several supports 2 are equidistantly arranged on the upper surface of the detection platform 1 through a sliding part. Each support 2 is provided with a placement part for placing a titanium tube anode. Each support 2 is slidably provided with a support part 3 on its front end face. Each support part 3 is provided with a double plug 4 for sealing the titanium tube anode port step by step. A self-adjusting pushing part 5 that is linked with the support part 3 is installed on the front end of the upper surface of the detection platform 1.

[0026] Please refer to Figures 1 and 2. In this embodiment, the sliding part includes several sliding groove groups 6 that are equidistantly opened on the upper surface of the detection table 1 along the transverse direction. Each sliding groove group 6 is slidably connected to a slider group. The slider group is fixedly connected to the lower surface of the corresponding support 2. The placement part includes a baffle 7 fixedly connected to the rear part of the upper surface of the support 2 and two U-shaped brackets 8 that are symmetrically fixedly connected to the upper surface of the support 2 by fixing columns. The upper end of the vertical section of the U-shaped bracket 8 is fixedly connected to a guide plate. The two guide plates located on the same U-shaped bracket 8 are distributed in a V-shape. The support part 3 includes an installation groove 31 opened on the front end surface of the support 2 and a T-shaped frame 32 slidably connected in the installation groove 31. A return spring is fixedly connected between the T-shaped frame 32 and the installation groove 31.

[0027] Please refer to Figures 1, 3, and 5. The self-adjusting sliding part 5 includes several rail grooves 51 equidistantly opened on the upper surface of the testing table 1 and corresponding to the positions of each support 2. A sliding frame 52 is slidably connected in each rail groove 51. A movable pulley 53 is rotatably connected between the upper and lower opposite sides of the sliding frame 52. A fixed pulley 54 is rotatably connected between adjacent rail grooves 51 on the upper surface of the testing table 1. A sliding assembly is provided between the sliding frame 52 and the support part 3. A pull rope 55 is fixedly connected to the left side of the upper surface of the testing table 1. The right end of the pull rope 55 extends from right to left, passing through each movable pulley 53 and fixed pulley 54, and then extends to the right side of the testing table 1. A winding assembly is provided on the right side of the testing table 1 for winding and tightening the right end of the pull rope 55. During testing, the winding assembly is controlled to tighten the pull rope 55, so that the pull rope 55 is between the movable pulley 53 and the fixed pulley. The coordinated arrangement of 54 generates displacement changes, thereby driving each sliding frame 52 to move synchronously. The sliding frame 52 drives the corresponding support part 3 to move along the axial direction of the titanium tube anode through the sliding component, so as to adaptively match the movement stroke of the support part 3 according to the different lengths of the titanium tube anode to be tested, thereby making the sealing force applied by each double plug 4 to the end of the titanium tube anode consistent. The sliding component includes a guide frame 56 fixedly connected to the upper part of the sliding frame 52 by embedding. A guide post 57 slidably connected in the guide frame 56 is fixedly connected to the lower end face of the T-shaped frame 32. The winding component includes a drive motor 58 fixedly connected to the detection table 1 by embedding. A winding wheel 59 is fixedly connected to the end of the output shaft of the drive motor 58. The right end of the pull rope 55 is wound and fixedly connected to the outside of the winding wheel 59.

[0028] When inspecting straight tubular titanium tube anodes, simply place the anode horizontally with its opening facing forward on the U-shaped bracket 8. The inclined guide plate guides the anode, allowing it to smoothly enter the U-shaped bracket 8. The rear end of the anode, with its titanium end cap welded on, abuts against the baffle 7. When inspecting U-shaped tubular titanium tube anodes, manually move the support 2 according to the distance between the two parallel segments of the anode, causing the slider assembly to move in the slide groove assembly 6. This ensures that the distance between two adjacent U-shaped brackets 8 matches the distance between the parallel segments of the anode. Then, the anode can be placed into the U-shaped bracket 8. The lateral movement of the support 2 also causes the T-shaped frame 32 to move laterally, which in turn causes the guide column 57 to slide in the guide frame 56.

[0029] Under the action of the return spring, the T-shaped frame 32 is initially at its furthest position extending from the support 2. When all the titanium tube anodes to be tested are placed, the drive motor 58 is controlled to run, driving the winding wheel 59 to rotate. The winding wheel 59 winds up the pull rope 55, and the continuously tightening pull rope 55 pulls the movable pulley 53 towards the fixed pulley 54. The movable pulley 53 then drives the sliding frame 52 to slide in the track groove 51. The sliding frame 52 then pushes the T-shaped frame 32 to move synchronously through the guide frame 56 and guide post 57. The T-shaped frame 32 then drives the double... The plug 4 moves until it touches the front end of the titanium tube anode. At this point, the movable pulley 53 at the corresponding position stops moving backward, while the movable pulley 53 at the shorter titanium tube anode position continues to move backward until the corresponding double plug 4 touches the front end of the titanium tube anode. This continues until all the double plugs 4 touch the corresponding ends of the titanium tube anode (as shown in Figure 5). Then, by connecting the external air pump to the double plug 4, gas can be introduced into the titanium tube anode to maintain pressure and perform an airtightness test on the weld of the titanium tube anode.

[0030] During the tightening process of the pull rope 55, the take-up wheel 59 applies a traction force to the pull rope 55. The pull rope 55 forms a continuous force transmission path between each movable pulley 53 and the fixed pulley 54. Under the traction of the pull rope 55, each movable pulley 53 moves backward along its respective direction of motion. Since the tension between each movable pulley 53 and the pull rope 55 originates from the same pull rope 55 and is in the same force system, the tension in the pull rope 55 remains basically consistent along its length when the friction effect is ignored. This makes the traction force acting on each movable pulley 53 basically consistent. Under the action of this traction force, each movable pulley 53 pushes the corresponding double plug 4 to move axially. When the double plug 4 contacts the corresponding titanium tube anode end, the movable pulley 53 continues to be pulled by the pull rope 55. Applying a sealing thrust to the double plug 4, since the traction force on each movable pulley 53 is basically the same, the sealing force of each double plug 4 can be kept basically consistent when sealing titanium tube anodes of different lengths. At the same time, since the end positions of titanium tube anodes of different lengths are different, each movable pulley 53 will adaptively generate different movement strokes according to the length of the corresponding titanium tube anode during the tightening process of the pull rope 55. The movable pulley 53 corresponding to the longer titanium tube anode will contact its end earlier and enter the sealing state, while the movable pulley 53 corresponding to the shorter titanium tube anode will continue to move until the sealing is completed. Thus, under the drive of the same pull rope 55, adaptive stroke adjustment and basically consistent sealing thrust output can be achieved for multiple titanium tube anodes of different lengths without the need to set the stroke for each individual titanium tube.

[0031] After the test is completed, the control drive motor 58 drives the winding wheel 59 to reverse, releasing the pull rope 55. After the pull rope 55 is released, the push on the movable pulley 53 is released, and the reset spring resets and pushes the T-shaped frame 32 forward. The T-shaped frame 32 then pushes the sliding frame 52 forward through the guide post 57 and the guide frame 56. The sliding frame 52 then pushes the pull rope 55 to reset through the movable pulley 53 until the movable pulley 53 moves forward to the initial position.

[0032] It should be noted that the rotating mounting parts of the movable pulley 53 and the fixed pulley 54 are preferably set as bearing structures with low rolling resistance, so that the movable pulley 53 and the fixed pulley 54 can rotate smoothly under the traction of the pull rope 55. This effectively reduces the frictional resistance generated between the pull rope 55 and the movable pulley 53, between the pull rope 55 and the fixed pulley 54, and during the rotation of the movable pulley 53 itself. This makes the traction force transmitted by the pull rope 55 to each movable pulley 53 more uniform and stable during the tightening process, thereby ensuring that the thrust generated by each movable pulley 53 when it moves backward is basically consistent. This makes the force on each double plug 4 more balanced when it touches and seals the corresponding titanium tube anode end, thereby improving the stability and consistency when multiple titanium tube anodes of different lengths are subjected to pressure holding tests at the same time.

[0033] Please refer to Figures 3, 4, and 6. In this embodiment, the double plug 4 includes an outer cylinder 41 that is fixedly connected to the vertical section of the T-shaped frame 32 and has an open rear end. An inner cylinder 42 is slidably connected inside the outer cylinder 41. Several first-order top springs 43 are circumferentially fixedly connected between the outer cylinder 41 and the inner cylinder 42. A conical plug 44 is slidably connected inside the inner cylinder 42. A second-order top spring 45 is fixedly connected between the inner cylinder 42 and the conical plug 44. A spring is fixedly connected between the conical outer wall of the conical plug 44 and the inner wall of the inner cylinder 42. The conical cover 46 has several arc-shaped grooves equidistantly spaced around the inner cylinder 42. Each arc-shaped groove has a pressure plate 47 fixedly connected to its front wall. A wedge-shaped block 48 for cooperating with the outer cylinder 41 is fixedly connected to the side of the pressure plate 47 away from the axis of the inner cylinder 42. An air inlet pipe 49 that slides through the inner cylinder 42 and the outer cylinder 41 is fixedly connected inside the conical block 44 by an interlocking method. An air pressure sensor 410 is connected to the outside of the air inlet pipe 49. The air pressure sensor 410 is a type of mechanical sensor and is an existing device.

[0034] After connecting the external air pumping equipment's pipeline to the front end of the air inlet pipe 49, during the process of the T-shaped frame driving the double plug 4 to move backward as a whole to seal the titanium tube anode, the elastic conical cover 46 covering the entire conical surface of the conical plug 44 initially contacts the front end of the titanium tube anode. At this time, the conical plug 44 stops moving backward, while the T-shaped frame continues to drive the outer cylinder 41 to move backward. The outer cylinder 41 pushes the inner cylinder 42 backward synchronously through the first top spring 43. Since the number of first top springs 43 is greater than the number of second top springs 45, the outer cylinder 41 drives the inner cylinder... The force of the inner cylinder 42 moving backward is greater than the force of the inner cylinder 42 driving the conical block 44 to move backward. When the conical block 44 remains stationary, the outer cylinder 41 pushes the inner cylinder 42 backward through the first top spring 43, which will push the second top spring 45 and gradually compress it until the second top spring 45 is compressed to its shortest state. During this process, the first top spring 43 will be slightly compressed, and a slight relative misalignment will occur between the outer cylinder 41 and the inner cylinder 42. This misalignment is limited to a preset allowable range, so that the outer cylinder 41 has not yet contacted the wedge block 48.

[0035] As the inner cylinder 42 moves backward relative to the outer cylinder 41, it further drives the portion of the elastic conical cover 46 with a diameter larger than the outer diameter of the titanium tube anode to move backward and gradually fit onto the outer wall of the titanium tube anode until this portion completely covers the outer wall of the titanium tube anode. At this point, the inner cylinder 42 stops moving (as shown in the changes from the first to the second figure in Figure 6). Subsequently, the outer cylinder 41 continues to move backward and begins to compress the first top spring 43, causing the outer cylinder 41 to move further backward relative to the inner cylinder 42. The end of the outer cylinder 41 abuts against the inclined surface of the wedge block 48 and continues to move backward along the inclined surface of the wedge block 48, thereby squeezing the wedge block 48 to move closer to the axis of the outer cylinder 41. 8. During the movement, the top pressure plate 47 undergoes elastic deformation and gradually retracts, thereby applying radial extrusion force to the portion of the elastic conical cover 46 that is fitted onto the outer wall of the titanium tube anode. This causes the elastic conical cover 46 to tightly wrap around the outer wall of the titanium tube anode, thus achieving the sealing of the outside of the titanium tube anode (as shown in the change from the second to the third figure in Figure 6). Through the cooperation between the conical plug 44 and the elastic conical cover 46, the titanium tube anode port can be sealed from both the inside and outside, so that the sealing pressure is applied evenly from both the inside and outside directions. This enhances the sealing strength while effectively preventing port deformation when sealing thin-walled titanium tube anodes.

[0036] Finally, the external air pump is controlled to introduce gas into the corresponding titanium tube anode through the air inlet pipe 49, gradually increasing the internal pressure to a preset detection pressure value. This pressure is then maintained for a preset duration. During this pressure maintenance, a pressure sensor 410 connected to the outside of the air inlet pipe 49 monitors the pressure changes inside the titanium tube anode in real time and compares the monitored pressure values ​​with the initial pressure maintenance pressure. If the pressure remains stable within the preset maintenance duration or the pressure drop is within the allowable range, the sealing of the corresponding titanium tube anode weld is deemed to meet the detection requirements. If a significant drop in pressure or a change exceeding the allowable range is detected during the pressure maintenance process, a leakage risk is identified at the corresponding titanium tube anode weld, thus determining that the titanium tube anode weld is unqualified. The above detection process is a conventional detection method used in the field of titanium tube anode weld pressure maintenance detection. This invention only achieves synchronization and adaptability improvement of this detection process through structural adaptation, without changing the original detection principle.

[0037] It should be noted that although this invention adds some parts to the structure compared to existing titanium tube anode weld inspection equipment, the added structures are all conventional mechanical structures or general standard parts, without involving high-precision or high-cost special components. The processing, manufacturing and assembly are simple, the overall cost is small, and it can be used repeatedly for a long time after a one-time investment. Compared with existing titanium tube anode inspection equipment, it can significantly improve the applicability and inspection efficiency of titanium tube anode weld pressure holding inspection. It can achieve single synchronous inspection of titanium tube anodes of different lengths and structural shapes without frequent adjustment operations, while effectively avoiding deformation damage to the thin-walled titanium tube ends during the sealing process. The overall improvement in ease of use, inspection stability and efficiency brought about by this invention far outweighs the cost increase brought about by the addition of structures.

[0038] During operation, the support 2 is first moved laterally to adjust its position according to the width of the U-shaped tubular titanium tube anode. Then, the straight or U-shaped titanium tube anode to be tested is placed in the placement section. Subsequently, the self-adjusting pusher 5 is controlled to operate. The self-adjusting pusher 5 drives the double plugs 4 to move backward through the support 3. The backward movement of each double plug 4 can be automatically matched and adjusted according to the length of the titanium tube anode to be sealed, until all double plugs 4 touch the corresponding titanium tube anode end. Finally, air is introduced into the titanium tube anode through the double plugs 4 by an external air pumping device, and the pressure is maintained for a period of time. The quality of the titanium tube anode weld is detected by the change in air pressure in the titanium tube anode.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A titanium-based noble metal anode argon arc detection device, comprising a detection stage, characterized in that: The upper surface of the testing platform is equidistantly fitted with several supports via sliding parts. Each support has a placement part for placing the titanium tube anode. Each support's front end has a sliding support part, and each support part has a double plug for progressively sealing the titanium tube anode port. A self-adjusting pushing part, linked to the support part, is installed at the front of the upper surface of the testing platform. The self-adjusting pushing part includes several equidistant grooves on the upper surface of the testing platform, corresponding one-to-one with the positions of each support. A sliding frame is slidably connected in each groove, and movable pulleys are rotatably connected between the upper and lower opposite sides of the sliding frame. Fixed pulleys are rotatably connected between adjacent grooves on the upper surface of the testing platform. The sliding frame and the support part... A sliding assembly is provided. A pull rope is fixedly connected to the left side of the upper surface of the testing platform. The right end of the pull rope extends from right to left, passing through each movable pulley and fixed pulley in sequence, and then extends to the right side of the testing platform. A winding assembly for winding and tightening the right end of the pull rope is provided on the right side of the testing platform. During testing, the winding assembly is controlled to tighten the pull rope, causing the pull rope to undergo displacement changes under the combined arrangement of the movable and fixed pulleys. This drives each sliding frame to move synchronously. The sliding frame drives the corresponding support part to move along the axial direction of the titanium tube anode through the sliding assembly. The movement stroke of the support part is adaptively matched according to the different lengths of the titanium tube anode to be tested, so that the sealing force applied by each double plug to the end of the titanium tube anode is consistent.

2. The titanium-based noble metal anode argon arc detection device according to claim 1, characterized in that: The sliding part includes several sliding groove groups that are equidistantly opened on the upper surface of the testing table along the transverse direction. Each sliding groove group is slidably connected to a slider group, and the slider group is fixedly connected to the lower surface of the corresponding support.

3. The titanium-based noble metal anode argon arc detection device according to claim 1, characterized in that: The placement part includes a baffle fixedly connected to the rear of the upper end face of the support and two U-shaped brackets symmetrically fixedly connected to the upper end face of the support by fixing columns.

4. The titanium-based noble metal anode argon arc detection device according to claim 1, characterized in that: The support includes a mounting groove on the front end face of the support and a T-shaped frame slidably connected in the mounting groove. A return spring is fixedly connected between the T-shaped frame and the mounting groove.

5. The titanium-based noble metal anode argon arc detection device according to claim 4, characterized in that: The double plug includes an outer cylinder that is fixedly connected to the vertical section of the T-shaped frame and has an opening at the rear. An inner cylinder is slidably connected inside the outer cylinder. Several No. 1 top springs are fixedly connected circumferentially between the outer cylinder and the inner cylinder at equal intervals. A conical plug is slidably connected inside the inner cylinder. A No. 2 top spring is fixedly connected between the inner cylinder and the conical plug. An elastic conical cover is fixedly connected between the conical outer wall of the conical plug and the inner wall of the inner cylinder. Several arc-shaped grooves are circumferentially equidistantly opened on the inner cylinder. A pressure plate is fixedly connected to the front wall of each arc-shaped groove. A wedge-shaped block for cooperating with the outer cylinder is fixedly connected to the side of the pressure plate away from the axis of the inner cylinder. An air inlet pipe that slides through the inner cylinder and the outer cylinder is fixedly connected inside the conical plug by an interlocking method. A pressure sensor is connected to the outside of the air inlet pipe.

6. The titanium-based noble metal anode argon arc detection device according to claim 4, characterized in that: The sliding assembly includes a guide frame that is fixedly connected to the upper part of the sliding frame by embedding, and a guide post that is slidably connected to the lower end face of the T-shaped frame.

7. The titanium-based noble metal anode argon arc detection device according to claim 1, characterized in that: The winding assembly includes a drive motor that is fixedly connected to the detection table by embedding, a winding wheel that is fixedly connected to the end of the output shaft of the drive motor, and the right end of the pull rope that is wound and fixedly connected to the outside of the winding wheel.

8. The titanium-based noble metal anode argon arc detection device according to claim 3, characterized in that: A guide plate is fixedly connected to the upper end of the vertical section of the U-shaped bracket, and the two guide plates located on the same U-shaped bracket are distributed in a V-shape.

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