A spaceflight test bed body welding deformation restraining device

Abstract

This invention discloses a welding deformation suppression device for aerospace test benches, belonging to the technical field of welding deformation suppression devices. It includes a workbench with fixed plates symmetrically fixed to its upper surface. Hydraulic rods are fixed to the fixed plates, and a moving mechanism is symmetrically arranged above the workbench. This aerospace test bench welding deformation suppression device uses a pre-set anti-deformation component that, through the linkage of a movable plate and a connecting rod, drives the mounting plate and inclined plate upwards. The inclined structure of the inclined plate generates an upward force on the fixed wheels, driving the third guide rail and the workpiece welding end to warp upwards, forming a pre-set anti-deformation. The upward movement distances of the multiple third guide rails differ, resulting in a uniform arc-shaped warp at the workpiece welding end. This precisely counteracts the shrinkage deformation caused by thermal stress during welding, ensuring the overall flatness of the test bench after welding. This eliminates the need for complex subsequent correction processes, significantly reducing processing costs and shortening the production cycle.

Description

Technical Field

[0001] This invention relates to the field of welding deformation suppression devices, specifically a welding deformation suppression device for aerospace test bench. Background Technology

[0002] As a core supporting component in the research and development and testing of aerospace equipment, the aerospace test rig is mostly constructed by splicing and welding large steel plates. The welding quality directly determines the structural accuracy, load-bearing capacity, and service life of the test rig, thus affecting the accuracy of aerospace test data and the safety of equipment operation. Due to the large size of the aerospace test rig and the uneven thickness of the steel plates, the welding process can generate thermal and structural stresses due to the rapid temperature rise and uneven cooling rate in the weld area. This can lead to deformation problems such as shrinkage, warping, and lateral bending at the welded ends of the rig. This is a key technical challenge that urgently needs to be solved in the welding process of aerospace test rigs. Existing technologies mainly use rigid fastening to fix the workpiece, which cannot perform pre-deformation treatment on the welding end of the workpiece before welding. This makes it difficult to offset the thermal deformation generated during welding, resulting in the need for complex subsequent correction processes after welding. This not only increases processing costs and extends the production cycle, but may also affect the structural strength and accuracy of the platform due to secondary stress generated during the correction process, making it difficult to meet the stringent requirements of aerospace test platform for welding accuracy and structural stability. Summary of the Invention

[0003] The purpose of this invention is to provide a device for suppressing welding deformation of aerospace test benches, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a welding deformation suppression device for aerospace test bench, comprising a workbench, wherein fixed plates are symmetrically fixed on the upper surface of the workbench, and hydraulic rods are fixed on the fixed plates; a moving mechanism is symmetrically arranged above the workbench, and the moving mechanism is used to realize the bearing and docking of the workpiece; a positioning mechanism is fixed on the moving mechanism, and the positioning mechanism is used to adapt to the fixing of workpieces of different sizes; the positioning mechanism is interconnected with a pre-set anti-deformation component, and the pre-set anti-deformation component is used to realize the pre-top anti-deformation effect of the welding end of the workpiece.

[0005] Preferably, the moving mechanism includes a movable platform symmetrically arranged above the worktable, and a first slider is symmetrically fixed to the front and back of the lower end face of the movable platform. The first slider is slidably connected to the first guide rail, and the first guide rail is symmetrically fixed to the upper end face of the worktable. The movement of the movable platform can realize the docking of two workpieces to facilitate subsequent welding. When the movable platform moves, the sliding guidance between the first slider and the first guide rail can ensure the stability of the movement of the movable platform.

[0006] Preferably, the lower end face of the movable table is symmetrically fixed with support plates on the left and right sides, and a guide rod is fixed between the two support plates. The guide rods are symmetrically distributed about the center line of the movable table, and the guide rods are slidably connected to the movable plates. The movable plates are fixed to the output ends of the hydraulic rods, and the movable plates are fixed to one end of the first spring. The other end of the first spring is fixed to the support plate. The movable plates can be moved by the hydraulic rod. The first spring provides flexible support between the movable plates and the support plates, providing a basic force for the movement of the movable table, thus ensuring the normal operation of the device. The sliding action between the movable plates and the guide rods allows for adjustment of the distance between the movable plates and the support plates, thus providing a basic guarantee for the pre-deformation of the subsequent workpiece, and further ensuring the normal operation of the device.

[0007] Preferably, the positioning mechanism includes a second guide rail fixed in a groove on the movable platform, and a third guide rail slidably connected to the groove on the movable platform is provided on the side of the second guide rail. Both the third and second guide rails are fixed with toothed plates, and both the third and second guide rails are slidably connected with second sliders. The upper surface of the second slider is flush with the upper surface of the movable platform. Through the sliding action between the second slider and the third and second guide rails, the distance between the two second sliders can be adjusted, thereby adapting to the installation and fixing of workpieces of different sizes and improving the adaptability of the device.

[0008] Preferably, a bracket is also fixed on the second slider, and the bracket and the threaded rod are threadedly connected. The threaded rod is bearing-connected to the pressure plate, and a convex shaft is also fixed on the pressure plate. The convex shaft and the bracket are slidably connected. Through the threaded connection between the threaded rod and the bracket, the pressure plate can be driven to move, thereby adjusting the distance between the pressure plate and the second slider to accommodate workpieces of different thicknesses for clamping and fixing. When the pressure plate moves, the sliding guide effect between the convex shaft and the bracket can ensure the stability of the pressure plate movement.

[0009] Preferably, the convex shaft contacts the top plate for positioning, and slide rods are symmetrically fixed to the lower end of the top plate, with a sliding connection between the slide rods and the bracket. A base plate is fixed to the lower end of the slide rods, and a second spring is fixed between the base plate and the bracket. The second springs are symmetrically distributed about the center line of the bracket. The force exerted by the convex shaft on the top plate provides a basic force for the movement of the top plate, thus providing a basic guarantee for unlocking the second slider. Furthermore, the sliding guide between the slide rods and the bracket ensures the stability of the top plate's movement during movement. When the convex shaft separates from the top plate, the elasticity of the second spring provides a basic guarantee for the automatic reset of the top and base plates, thus providing a basic guarantee for locking the position of the second slider.

[0010] Preferably, a locking tooth block is fixed to the lower end face of the bracket, and the locking tooth block and the locking tooth plate form a locking connection. Through the locking action between the locking tooth block and the locking tooth plate, the position of the second slider can be locked, thereby ensuring the normal operation of the device.

[0011] Preferably, the pre-set anti-deformation component includes a connecting rod fixed to the lower end face of the movable plate, and the connecting rod is slidably connected to the inclined groove. The inclined groove is provided with a fixing block, and the fixing block is symmetrically fixed to the mounting plate. When the movable plate moves relative to the support plate, the connecting rod can slide in the inclined groove, thereby driving the fixing block and the mounting plate to move. This provides a basic guarantee for realizing the pre-top anti-deformation of the workpiece, and effectively ensures the welding quality of the workpiece.

[0012] Preferably, the mounting plate and the vertical rod are slidably connected, and the vertical rods are symmetrically distributed about the center line of the mounting plate. The vertical rods are fixedly connected to the support plate. When the mounting plate moves under force, the sliding guide effect between the mounting plate and the vertical rod can ensure the stability of the movement of the mounting plate, thereby ensuring the normal operation of the device.

[0013] Preferably, the upper surface of the mounting plate is symmetrically fixed with support rods on both sides, and the support rods are slidably connected to the worktable. A detachable inclined plate is installed on the upper surface of the support rod, and the inclined plate is located directly below the fixed wheel. The fixed wheel is connected to the lower side of the adjusting rod by a bearing, and the adjusting rod is symmetrically fixed to the lower surface of the third guide rail. The adjusting rod is slidably connected to the movable table, and a third spring is fixed between the adjusting rod and the movable table. By moving the mounting plate, the support rod is moved synchronously. The force generated by the contact between the inclined plate and the fixed wheel can cause the adjusting rod and the third guide rail to move upward, thereby causing the welding side of the fixed workpiece to move upward. Due to the inclined structure of the inclined plate, the welding end of the workpiece can be gently warped to achieve a pre-deformation effect, thereby effectively ensuring the welding quality of the subsequent workpiece.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The aerospace test bench welding deformation suppression device has a pre-set anti-deformation component that drives the mounting plate and inclined plate to move upward through the linkage of the movable plate and the connecting rod. The inclined plate's inclined structure generates an upward force on the fixed wheel, driving the third guide rail and the workpiece welding end to warp upward, forming a preset anti-deformation. The upward movement distance of the multiple third guide rails is different, so that the workpiece welding end forms a uniform arc warp. This can accurately offset the shrinkage deformation caused by thermal stress during welding, ensuring that the overall back plate of the test bench is flat after welding. There is no need for complicated subsequent correction procedures, which significantly reduces processing costs and shortens the production cycle. 2. The welding deformation suppression device for the aerospace test bench body has a positioning mechanism that allows for flexible adjustment of the distance between the front and rear supports through the sliding cooperation of the second guide rail, the third guide rail, and the second slider. Combined with the locking of the toothed block and the toothed plate, it can quickly achieve the front and rear positioning of aerospace test bench body plates of different sizes. At the same time, the pressure plate is driven to move up and down by the threaded rod, and with the linkage between the convex shaft and the top plate, the workpiece is pressed and fixed and the positioning mechanism is locked synchronously, which not only ensures the stability of the workpiece fixation, but also greatly improves the positioning accuracy and adaptability. 3. The welding deformation suppression device for the aerospace test bench uses a moving mechanism that drives the movable plate through a hydraulic rod. Combined with the flexible support of the first spring, it enables the two movable platforms to move synchronously towards each other, thereby driving the two workpieces to precisely dock. Compared with the existing rigid docking mechanism, the flexible support design can effectively buffer the impact force during the docking process, avoiding problems such as workpiece misalignment and uneven gaps. At the same time, the sliding guidance between the movable platform and the first guide rail ensures the stability of the docking process and ensures that the welding ends of the two workpieces fit precisely, laying the foundation for subsequent high-quality welding. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the overall composition of the device of the present invention; Figure 3 This is a three-dimensional structural diagram of the movable platform of the present invention viewed from below; Figure 4 This is a frontal cross-sectional three-dimensional structural diagram of the movable platform of the present invention; Figure 5 This is a three-dimensional structural diagram of the movable platform of the present invention, viewed from below. Figure 6 This is a partially enlarged three-dimensional structural diagram of the third guide rail assembly of the present invention; Figure 7 This is a frontal three-dimensional structural diagram of the pre-set anti-deformation component of the present invention.

[0016] In the diagram: 1. Workbench; 2. Fixed plate; 3. Hydraulic rod; 4. Moving mechanism; 401. Movable table; 402. First slider; 403. First guide rail; 404. Support plate; 405. Guide rod; 406. Movable plate; 407. First spring; 5. Positioning mechanism; 501. Second guide rail; 502. Third guide rail; 503. Gear plate; 504. Second slider; 505. Bracket; 506. Thread 507. Rod; 508. Pressure plate; 509. Convex shaft; 510. Top plate; 511. Slide rod; 512. Bottom plate; 513. Second spring; 514. Clamping block; 6. Pre-set anti-deformation assembly; 601. Connecting rod; 602. Inclined groove; 603. Fixing block; 604. Mounting plate; 605. Vertical rod; 606. Support rod; 607. Inclined panel; 608. Fixed wheel; 609. Adjusting rod; 610. Third spring. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-7 The present invention provides a technical solution: a welding deformation suppression device for aerospace test bench, comprising a workbench 1, a fixing plate 2 symmetrically fixed on the upper surface of the workbench 1, a hydraulic rod 3 fixed on the fixing plate 2, a moving mechanism 4 symmetrically arranged above the workbench 1, the moving mechanism 4 being used to realize the bearing and docking of the workpiece, a positioning mechanism 5 fixed on the moving mechanism 4, the positioning mechanism 5 being used to adapt to the fixing of workpieces of different sizes, the positioning mechanism 5 being interconnected with a pre-set anti-deformation component 6, and the pre-set anti-deformation component 6 being used to realize the pre-top anti-deformation effect of the welding end of the workpiece.

[0019] The positioning mechanism 5 includes a second guide rail 501 fixed in a groove on the movable table 401, and a third guide rail 502 slidably connected to the groove on the movable table 401 on the side of the second guide rail 501. Both the third guide rail 502 and the second guide rail 501 are fixed with toothed plates 503. A second slider 504 is slidably connected to both the third guide rail 502 and the second guide rail 501, with the upper surface of the second slider 504 flush with the upper surface of the movable table 401. A bracket 505 is also fixed to the second slider 504, and the bracket 505 is threadedly connected to a threaded rod 506, which is bearing-connected to a pressure plate 507. Meanwhile, a convex shaft 508 is fixed on the pressure plate 507, and the convex shaft 508 is slidably connected to the bracket 505; the convex shaft 508 contacts the top plate 509 for positioning, and slide rods 510 are symmetrically fixed on the lower end of the top plate 509, and slide rods 510 are slidably connected to the bracket 505. At the same time, a base plate 511 is fixed on the lower end face of the slide rod 510, and a second spring 512 is fixed between the base plate 511 and the bracket 505, and the second spring 512 is symmetrically distributed about the center line of the bracket 505; a locking tooth block 513 is fixed on the lower end face of the bracket 505, and the locking tooth block 513 and the locking tooth plate 503 form a locking connection. When using the welding deformation suppression device for the aerospace test rig, such as Figures 1-7 As shown, first, place the two test bench plates to be welded on the movable table 401, making the welding edges of the test bench plates flush with the movable table 401. After placement, since the locking block 513 and the locking plate 503 are separated, and the second spring 512 is in a contracted state, the second slider 504 can slide relative to the third guide rail 502 and the second guide rail 501. Through the sliding action between the second slider 504 and the third guide rail 502 and the second guide rail 501, the distance between the two second sliders 504 can be adjusted until the second slider 504... When the upper bracket 505 contacts the side of the test bench plate, the test bench plate can be positioned front and back. At this time, the second slider 504 contacts the lower end face of the test bench plate. Then, by rotating the threaded rod 506, and with the threaded connection between the threaded rod 506 and the bracket 505, the pressure plate 507 can be moved downward under force. With the sliding guide between the convex shaft 508 and the bracket 505, the stability of the downward movement of the pressure plate 507 can be ensured until the pressure plate 507 contacts the upper end face of the test bench plate, thus achieving the pressing and fixing effect of the test bench plate, so that subsequent welding can be carried out. When the pressure plate 507 moves down, it simultaneously drives the convex shaft 508 to move down. When the convex shaft 508 separates from the top plate 509, the top plate 509 can be moved down and reset under the elastic action of the second spring 512. With the sliding guide action between the slide rod 510 and the bracket 505, the stability of the downward movement of the top plate 509 can be ensured. As the top plate 509 moves down, the slide rod 510 and the bottom plate 511 move down and reset simultaneously until the bottom plate 511 contacts the third guide rail 502 to achieve positioning. At this time, the locking block 513 and the locking plate 503 are engaged to achieve the locking effect, thereby achieving the locking effect of the second slider 504, and thus ensuring the stability of the test bench plate. The moving mechanism 4 includes a movable platform 401 symmetrically arranged above the worktable 1. A first slider 402 is symmetrically fixed to the front and back of the lower end face of the movable platform 401. The first slider 402 is slidably connected to the first guide rail 403. The first guide rail 403 is symmetrically fixed to the upper end face of the worktable 1. A support plate 404 is symmetrically fixed to the lower end face of the movable platform 401. A guide rod 405 is fixed between the two support plates 404. The guide rod 405 is symmetrically distributed about the center line of the movable platform 401. The guide rod 405 is slidably connected to the movable plate 406. The movable plate 406 is fixed to the output end of the hydraulic rod 3. The movable plate 406 is fixed to one end of the first spring 407. The other end of the first spring 407 is fixed to the support plate 404. After the test bench body plate is fixed, as follows Figures 1-7 As shown, by controlling the synchronous extension of the two hydraulic rods 3 on the left and right, the two movable plates 406 on the left and right can move towards each other. With the flexible support of the first spring 407 between the movable plate 406 and the support plate 404, the two movable platforms 401 on the left and right can move towards each other synchronously, which in turn can drive the two fixed test platform plates to move towards each other, realizing the docking of the two test platform plates until the welded ends of the two test platform plates contact each other. Since the welded ends of the two test platform plates are flush with the edge of the movable platform 401 when the test platform plates are installed, the two movable platforms 401 on the left and right contact synchronously at this time to achieve the positioning function, thereby completing the docking of the two test platform plates, so as to facilitate subsequent welding. The pre-set anti-deformation component 6 includes a connecting rod 601 fixed to the lower end face of the movable plate 406, and the connecting rod 601 is slidably connected to the inclined groove 602. A fixing block 603 is provided on the inclined groove 602, and the fixing block 603 is symmetrically fixed to the mounting plate 604. The mounting plate 604 is slidably connected to the vertical rod 605, and the vertical rod 605 is symmetrically distributed about the center line of the mounting plate 604. The vertical rod 605 is fixedly connected to the support plate 404. The upper end face of the mounting plate 604 also has a left... A support rod 606 is symmetrically fixed on the right, and the support rod 606 is slidably connected to the worktable 1. A detachable inclined plate 607 is installed on the upper end of the support rod 606. The inclined plate 607 is located directly below the fixed wheel 608. The fixed wheel 608 is connected to the lower side of the adjusting rod 609 by a bearing. The adjusting rod 609 is symmetrically fixed to the lower end of the third guide rail 502. The adjusting rod 609 is slidably connected to the movable table 401. A third spring 610 is also fixed between the adjusting rod 609 and the movable table 401. After the two test bench panels are joined together, as follows Figures 1-7 As shown, the hydraulic rod 3 continues to extend. Since the position of the movable platform 401 is limited at this time, the continued extension of the hydraulic rod 3 can cause the movable plate 406 to move relative to the support plate 404 under force. With the sliding guidance between the movable plate 406 and the guide rod 405, the stability of the movement of the movable plate 406 can be guaranteed. At this time, the first spring 407 is compressed under force. When the movable plate 406 moves relative to the support plate 404, it synchronously drives the connecting rod 601 to move. Combined with the sliding action between the connecting rod 601 and the inclined groove 602, the fixed block 603 and the mounting plate 604 are forced to move upward relative to the movable platform 401. Combined with the sliding guide action between the fixed block 603 and the vertical rod 605, the stability of the movement of the fixed block 603 and the mounting plate 604 is ensured. When the mounting plate 604 moves upward, it synchronously drives the support rod 606 and the inclined panel 607 to move upward, causing the inclined panel 607 to move closer to the fixed wheel 608. Because the inclined panel 607 has an inclined surface structure, when the inclined panel 607 moves upward, it will first contact the fixed wheel 608 on the side closest to the welded end of the test platform body plate. As the inclined panel 607 continues to move upward, it generates an upward force on the fixed wheel 608, which synchronously drives the adjusting rod 60. 9. The corresponding third guide rail 502 moves upward, which in turn drives one side of the test bench plate's welding end to warp slightly upward. The inclined panel 607 contacts multiple fixed wheels 608 to generate force, which causes the multiple third guide rails 502 to move upward, causing the welding end of the test bench plate to warp. Since the upward movement distance of the multiple third guide rails 502 is somewhat different, it can be ensured that the warping of the test bench plate is a long arc structure, avoiding excessive deformation of the test bench plate due to local warping and affecting the subsequent welding quality. Furthermore, the warping effect of the welding end of the test bench plate can achieve a pre-top anti-deformation effect, ensuring that when welding the two subsequent test bench plates, the pre-set anti-deformation can offset the deformation effect of the test bench plate during the welding process, ensuring that the overall test bench plate is in a straight state after welding, effectively guaranteeing the welding quality of the test bench plate.

[0020] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A device for suppressing welding deformation of an aerospace test bench, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is symmetrically fixed with a fixing plate (2), and a hydraulic rod (3) is fixed on the fixing plate (2). A moving mechanism (4) is symmetrically arranged above the workbench (1), and the moving mechanism (4) is used to realize the bearing and docking of the workpiece. A positioning mechanism (5) is fixed on the moving mechanism (4), and the positioning mechanism (5) is used to adapt to the fixing of workpieces of different sizes. The positioning mechanism (5) is connected to the pre-set anti-deformation component (6), and the pre-set anti-deformation component (6) is used to realize the pre-top anti-deformation of the welding end of the workpiece.

2. The aerospace test bench welding deformation suppression device according to claim 1, characterized in that: The moving mechanism (4) includes a movable platform (401) symmetrically arranged above the worktable (1) on the left and right, and a first slider (402) is symmetrically fixed on the lower end face of the movable platform (401). The first slider (402) and the first guide rail (403) are slidably connected. At the same time, the first guide rail (403) is symmetrically fixed on the upper end face of the worktable (1) on the front and back.

3. The aerospace test rig welding deformation suppression device according to claim 2, characterized in that: The lower end face of the movable platform (401) is symmetrically fixed with support plates (404), and a guide rod (405) is fixed between the two support plates (404). The guide rod (405) is symmetrically distributed about the center line of the movable platform (401). The guide rod (405) is slidably connected to the movable plate (406). The movable plate (406) is fixed to the output end of the hydraulic rod (3). The movable plate (406) is fixed to one end of the first spring (407), and the other end of the first spring (407) is fixed to the support plate (404).

4. The aerospace test rig welding deformation suppression device according to claim 3, characterized in that: The positioning mechanism (5) includes a second guide rail (501) fixed in a groove on the movable platform (401), and a third guide rail (502) slidably connected to the groove on the movable platform (401) is provided on the side of the second guide rail (501). A toothed plate (503) is fixed on both the third guide rail (502) and the second guide rail (501). At the same time, a second slider (504) is slidably connected on both the third guide rail (502) and the second guide rail (501). The upper surface of the second slider (504) is flush with the upper surface of the movable platform (401).

5. The aerospace test bench welding deformation suppression device according to claim 4, characterized in that: The second slider (504) is also fixed with a bracket (505), and the bracket (505) is threadedly connected to the threaded rod (506). The threaded rod (506) is bearing connected to the pressure plate (507). At the same time, the pressure plate (507) is also fixed with a convex shaft (508), and the convex shaft (508) is slidably connected to the bracket (505).

6. The aerospace test rig welding deformation suppression device according to claim 5, characterized in that: The convex shaft (508) contacts the top plate (509) for positioning, and the lower end of the top plate (509) is symmetrically fixed with sliding rods (510), and the sliding rods (510) are slidably connected to the bracket (505). At the same time, the lower end face of the sliding rods (510) is fixed with a base plate (511), and a second spring (512) is fixed between the base plate (511) and the bracket (505), and the second springs (512) are symmetrically distributed about the center line of the bracket (505).

7. The aerospace test bench welding deformation suppression device according to claim 6, characterized in that: The bracket (505) has a locking tooth block (513) fixed on its lower end face, and the locking tooth block (513) and the locking tooth plate (503) form a locking connection.

8. The aerospace test bench welding deformation suppression device according to claim 7, characterized in that: The pre-set anti-deformation component (6) includes a connecting rod (601) fixed to the lower end face of the movable plate (406), and the connecting rod (601) and the inclined groove (602) are slidably connected. The inclined groove (602) is provided with a fixing block (603), and the fixing block (603) is symmetrically fixed to the mounting plate (604) from front to back.

9. The aerospace test bench welding deformation suppression device according to claim 8, characterized in that: The mounting plate (604) and the vertical rod (605) are slidably connected, and the vertical rod (605) is symmetrically distributed about the center line of the mounting plate (604). The vertical rod (605) and the support plate (404) are fixedly connected.

10. The aerospace test rig welding deformation suppression device according to claim 9, characterized in that: The upper end face of the mounting plate (604) is also symmetrically fixed with support rods (606), and the support rods (606) are slidably connected to the worktable (1). The upper end face of the support rods (606) is equipped with a detachable inclined plate (607), and the inclined plate (607) is located directly below the fixed wheel (608). The fixed wheel (608) is connected to the lower side of the adjusting rod (609) by a bearing. The adjusting rod (609) is symmetrically fixed to the lower end face of the third guide rail (502), and the adjusting rod (609) is slidably connected to the movable table (401). A third spring (610) is also fixed between the adjusting rod (609) and the movable table (401).

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