Quality detection device for magnesium alloy integrated frame of electric vehicle

Abstract

The invention relates to the technical field of frame machining physical detection, in particular to an electric vehicle magnesium alloy integrated frame quality detection device which comprises an electric vehicle magnesium alloy integrated frame machining rack. A circulating rail which is circularly connected end to end is fixedly mounted on the base; a plurality of electric vehicle magnesium alloy integrated frame moving structures are movably arranged on the circulating rail, and electric vehicle magnesium alloy integrated frame bodies are detachably installed on the electric vehicle magnesium alloy integrated frame moving structures. The electric vehicle magnesium alloy integrated frame moving structure has the remarkable effects of automation and high efficiency, automatic movement of the electric vehicle magnesium alloy integrated frame moving structure on the circulating rail is achieved through the servo motor and the precise transmission part, it is ensured that the frame is rapidly and accurately transferred between all detection and assembly stations, the time and errors of manual carrying and positioning are reduced, and the working efficiency is improved. The detection and assembly steps are closely connected, the whole operation process is efficient and smooth due to the ordered process design, the production efficiency is improved, the labor cost is reduced, and the production period is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of physical detection in frame processing, and particularly to a quality detection device for an all-in-one magnesium alloy frame of an electric vehicle. Background Art

[0002] Welding quality detection refers to the detection of welding results, aiming to ensure the integrity, reliability, safety, and usability of welded structures. The frame is the main component of a vehicle, and the frame is usually formed by welding. Therefore, to ensure the safety of the vehicle, the welding quality is usually detected. The detection methods of welding usually include tensile test detection, hardness test detection, bending test detection, fatigue test detection, impact test detection, and ultrasonic test detection. Among them, the most common one is ultrasonic detection. The Chinese patent discloses a frame welding quality detection device (authorization publication number CN208224167U). This patented technology discloses a frame welding quality detection device, including a workbench, a detection part and clamping parts located on both sides of the detection part are arranged on the workbench. The detection part includes a slide rail installed on the workbench and an ultrasonic detector slidably connected to the slide rail. The clamping part includes a support table installed on the workbench and a clamping block slidably connected to the support table. A first wedge rod is arranged on the clamping block; an L-shaped rod composed of a cross bar and a vertical bar is arranged on the ultrasonic detector. The cross bar is fixed on the ultrasonic detector, and a second wedge rod cooperating with the first wedge rod is arranged at the bottom end of the vertical bar. This utility model solves the problem that when using ultrasonic waves for detection in the prior art, the ultrasonic waves will cause the frame to vibrate and the position to shift, resulting in inaccurate detection of the welding quality of the frame. This patented technology solves the problem that the current detection equipment for the welding quality of the frame is usually an ultrasonic detection device. However, when using the ultrasonic detection device to detect the welding quality of the frame, the ultrasonic waves will cause the frame to vibrate, and the position of the frame will shift, resulting in inaccurate detection of the welding quality of the frame.

[0003] However, in the prior art, due to the large size of the body of the all-in-one magnesium alloy frame, the mass of the frame is heavy, which is not convenient for manual handling and detection. It is necessary to solve the problem that in the prior art, the frame can be automatically loaded and unloaded and automatically detected.

[0004] Therefore, those skilled in the art provide a quality detection device for an all-in-one magnesium alloy frame of an electric vehicle to solve the problems raised in the above background art. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides: A quality detection device for an all-in-one magnesium alloy frame of an electric vehicle, including: A processing frame for an all-in-one magnesium alloy frame of an electric vehicle; a circulating rail that is fixedly installed on it and is connected end to end in a cycle; A number of movable electric vehicle magnesium alloy integrated frame moving structures are movably arranged on the circular track, and an electric vehicle magnesium alloy integrated frame body is detachably installed on the electric vehicle magnesium alloy integrated frame moving structure; An electric vehicle magnesium alloy integrated frame loading and unloading structure for automatically loading and unloading the electric vehicle magnesium alloy integrated frame body is assembled on the electric vehicle magnesium alloy integrated frame processing machine frame; An electric vehicle magnesium alloy integrated frame impact detection structure for performing drop impact detection on the electric vehicle magnesium alloy integrated frame body is also installed on the electric vehicle magnesium alloy integrated frame processing machine frame; The electric vehicle magnesium alloy integrated frame impact detection structure includes an impact simulation box fixedly installed on the surface of the electric vehicle magnesium alloy integrated frame processing machine frame. An adjustment top plate is rotatably assembled inside the top of the impact simulation box. An external tooth ring is fixedly assembled on the outer edge of the adjustment top plate. The external tooth ring meshes with a spur gear, and the top of the spur gear is connected to a third servo motor.

[0006] Preferably: The electric vehicle magnesium alloy integrated frame moving structure includes a moving frame plate. An assembly groove is formed inside the moving frame plate, and a bidirectional screw one is rotatably installed inside the assembly groove. One end of the bidirectional screw one rotatably penetrates through the assembly groove and is connected to a servo motor one fixedly installed on the inner wall of the moving frame plate.

[0007] Preferably: An assembly moving frame sleeved on the bidirectional screw one by screw drive is movably arranged inside the assembly groove. The number of the assembly moving frames is two in total, and adjustment grooves are formed inside the two assembly moving frames; A bidirectional screw two is rotatably installed inside the adjustment groove. One end of the bidirectional screw two rotatably penetrates through the inner wall of the adjustment groove and is connected to a servo motor two fixedly installed on the inner wall of the assembly moving frame.

[0008] Preferably: An adjustment frame sleeved on the bidirectional screw two by screw drive is movably arranged inside the adjustment groove. A pressing cylinder is assembled at the top end of the adjustment frame, and a clamping plate for clamping and fixing the electric vehicle magnesium alloy integrated frame body on the adjustment frame is installed at the output end of the pressing cylinder.

[0009] Preferably: The electric vehicle magnesium alloy integrated frame moving structure includes a driving structure installed at the bottom of the moving frame plate. The driving structure includes a fixed frame fixedly arranged at the bottom of the moving frame plate. Four driving rods are rotatably installed inside the fixed frame, and the bottom ends of the four driving rods rotatably penetrate through the outside of the fixed frame and are respectively fixedly provided with driving wheels located on both sides of the circular track; Worms are fixedly installed on the outer walls of the four driving rods. The worms mesh with a worm gear. The worm gear is fixedly connected with two groups of transmission rods, and belt wheels are fixedly assembled on the outer walls of one ends of the two groups of transmission rods; Belts are wound on the belt wheels of the two groups of transmission rods; One set of the transmission rods is connected with a servo motor III.

[0010] Preferably, the loading and unloading structure of the magnesium alloy integral frame of the electric vehicle includes an assembly frame fixedly installed on one side of the processing frame of the magnesium alloy integral frame of the electric vehicle, and two loading and unloading components of the magnesium alloy integral frame of the electric vehicle for loading and unloading the magnesium alloy integral frame body of the electric vehicle are installed on the assembly frame; The loading and unloading component of the magnesium alloy integral frame of the electric vehicle includes a transmission disc rotatably installed on the assembly frame; The bottom end of the transmission disc is connected with a No. 1 servo motor fixedly installed inside the assembly frame, and the loading and unloading component of the magnesium alloy integral frame of the electric vehicle includes an assembly frame fixedly installed on the processing frame of the magnesium alloy integral frame of the electric vehicle.

[0011] Preferably, a moving frame is fixedly installed at the top end of the assembly frame, and an adjusting lead screw is rotatably installed inside the moving frame. One end of the adjusting lead screw is connected with a No. 5 servo motor fixedly installed on the inner side wall of the moving frame; A load-bearing screw block with a spiral drive sleeved on the adjusting lead screw is movably arranged inside the moving frame.

[0012] Preferably, a hydraulic cylinder is fixedly installed at the bottom of the load-bearing screw block. The output end of the hydraulic cylinder is fixedly installed with a moving frame. Load-bearing grooves are formed on both inner side walls of the moving frame, and two groups of clamping frames are movably arranged inside the load-bearing grooves; A bidirectional lead screw rotatably arranged inside the moving frame is spirally driven on the inner wall of the clamping frame. One end of the bidirectional lead screw is connected with a No. 2 servo motor fixedly installed on the inner wall of the moving frame.

[0013] Preferably, an assembly shaft frame is assembled on the outer side of the bottom end of the clamping frame. A clamping bottom plate is rotatably installed inside the assembly shaft frame. A first side shaft frame is fixedly installed on the outer side wall of the clamping bottom plate. A telescopic cylinder is rotatably installed inside the first side shaft frame. The top end of the telescopic cylinder is rotatably installed with a second side shaft frame fixedly installed on the outer side wall of the clamping frame.

[0014] Preferably, an adjusting shaft rod is rotatably installed inside the adjusting top disc, and a straight tooth roller is fixedly assembled on the outer wall of one end of the adjusting shaft rod. The straight tooth roller meshes with a tooth plate frame movably arranged inside the adjusting top disc; A first movable cylinder is assembled between the tooth plate frame and the adjusting top disc; A movable plate is horizontally movably assembled inside the tooth plate frame, and a second movable cylinder is installed at the bottom end of the movable plate; The bottom end of the adjusting shaft rod is integrally fixed with an impact swing arm. An extension frame is movably arranged inside the impact swing arm. A screw barrel is fixedly arranged in the middle of the extension frame and is movably located inside the impact swing arm. A vertical screw rod is spirally driven inside the screw barrel; The top end of the vertical screw rod is connected with a No. 4 servo motor fixedly assembled inside the impact swing arm; At the bottom end of the extension frame, an impact head is fixedly installed at the center position of the impact simulation box, and at the end of the bottom end of the extension frame away from the impact head, an assembly rod is integrally fixed, and a plurality of counterweight blocks are detachably installed on the outer side of the assembly rod.

[0015] Technical effects and advantages of the present invention: The present invention has enhanced assembly flexibility and adaptability: During the frame assembly process, the distance between the clamping frames can be adjusted according to the position at the top of the frame. At the same time, the rotation of the clamping bottom plate and the cooperation of the telescopic cylinder achieve precise clamping and positioning of frames of different specifications. The assembly moving frame and the adjustable frame distance in the moving structure of the electric vehicle magnesium alloy integrated frame can also be flexibly adjusted, facilitating the fixation and transfer of frames of different sizes in the system, greatly improving the compatibility of the system with various frames, and reducing the operation inconvenience and equipment limitations caused by frame specification differences.

[0016] The present invention has remarkable effects of automation and high efficiency. The driving of the moving structure of the electric vehicle magnesium alloy integrated frame on the circulating track relies on a servo motor and precision transmission components to achieve automatic movement, ensuring the rapid and accurate transfer of the frame between various inspection and assembly stations, reducing the time and error of manual handling and positioning. Each inspection and assembly step is closely connected, and the orderly process design makes the entire operation process efficient and smooth, improving production efficiency and reducing labor costs and production cycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 2 is a schematic top view structural diagram of a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 3 is a schematic front view structural diagram of a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 4 is a schematic disassembled structural diagram of a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 5 is a schematic structural diagram of the circulating track of a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 6 is a schematic structural diagram of the moving structure of an electric vehicle magnesium alloy integrated frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 7 is a schematic structural diagram of the assembly moving frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application; Figure 8It is a schematic structural diagram of a fixed frame in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 9 It is a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application Figure 8 A schematic structural diagram of the structure at position A in it; Figure 10 It is a schematic structural diagram of a first bidirectional screw in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 11 It is a schematic structural diagram of an adjusting frame in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 12 It is a schematic structural diagram of a loading and unloading structure for an integrated magnesium alloy frame of an electric vehicle in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 13 It is a schematic structural diagram of a moving frame in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 14 It is a schematic structural diagram of a moving rack in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 15 It is a schematic structural diagram of an impact detection structure for an integrated magnesium alloy frame of an electric vehicle in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 16 It is a schematic structural diagram of an impact swing arm in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application; Figure 17 It is a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application Figure 16 A schematic structural diagram of the structure at position B in it; Figure 18 It is a schematic structural diagram of an adjusting shaft rod in a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application.

[0018] In the figure: 1. Processing rack for the integrated magnesium alloy frame of the electric vehicle; 2. Circulating track; 3. Moving structure for the integrated magnesium alloy frame of the electric vehicle; 301. Moving plate; 302. Assembly groove; 303. Assembled moving rack; 304. First bidirectional screw; 305. First servo motor; 306. Adjusting groove; 307. Adjusting frame; 308. Second bidirectional screw; 309. Second servo motor; 310. Pressing cylinder; 311. Clamping plate; 31. Driving structure; 3101. Fixed frame; 3102. Driving rod; 3103. Worm gear; 3104. Worm; 3105. Transmission rod; 3106. Belt pulley; 3107. Belt; 3108. Third servo motor; 3109. Driving wheel; 4. Loading and unloading structure of the magnesium alloy integrated frame of an electric vehicle; 401. Assembly rack 41. Loading and unloading assembly of the magnesium alloy integrated frame of an electric vehicle; 4101. Transmission disc; 4102. First servo motor; 4103. Assembly frame; 4104. Moving frame; 4105. Load-bearing screw block; 4106. Adjusting screw rod; 4107. Hydraulic cylinder; 4108. Moving rack; 4109. Load-bearing groove; 4110. Clamping rack; 4111. Bidirectional screw rod; 4112. Second servo motor; 4113. Assembly shaft frame; 4114. Clamping bottom plate; 4115. First side shaft frame; 4116. Telescopic cylinder; 4117. Second side shaft frame; 4118. Fifth servo motor 5. Detection component of the magnesium alloy integrated frame of an electric vehicle; 51. Coordinate measuring device; 52. Resonance mode analysis device; 53. Static load test device 6. Impact detection structure of the magnesium alloy integrated frame of an electric vehicle; 601. Impact simulation box; 602. Adjusting top disc; 603. External gear ring; 604. Straight gear; 605. Third servo motor; 606. Adjusting shaft rod; 607. Straight tooth roller; 608. Tooth plate frame; 609. First movable cylinder; 610. Movable plate; 611. Second movable cylinder; 612. Impact swing arm; 613. Vertical screw rod; 614. Fourth servo motor; 615. Screw barrel; 616. Extension rack; 617. Impact head; 618. Assembly rod; 619. Counterweight block 7. Ultrasonic flaw detection device; 8. Controller; 9. Magnesium alloy integrated frame body of an electric vehicle Specific embodiments

[0019] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes

[0020] Example 1. Please refer to Figures 1 - 5 , in this embodiment, a quality detection device for the magnesium alloy integrated frame of an electric vehicle is provided, including: a processing rack 1 for the magnesium alloy integrated frame of an electric vehicle; a circulating track 2 is fixedly installed thereon and is connected end to end in a cycle A plurality of moving structures 3 for the magnesium alloy integrated frame of an electric vehicle are movably arranged on the circulating track 2, and a magnesium alloy integrated frame body 9 of an electric vehicle is detachably installed on the moving structure 3 for the magnesium alloy integrated frame of an electric vehicle The moving structure 3 of the magnesium alloy integrated frame of the electric vehicle includes a main body that is detachably assembled to the magnesium alloy integrated frame body 9 of the electric vehicle, and the moving structure 3 of the magnesium alloy integrated frame of the electric vehicle can move cyclically along the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle for automatic detection; An electric vehicle magnesium alloy integrated frame loading and unloading structure 4 for automatically loading and unloading the magnesium alloy integrated frame body 9 of the electric vehicle is assembled on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle; The electric vehicle magnesium alloy integrated frame loading and unloading structure 4 is used for automatically loading and unloading the magnesium alloy integrated frame body 9 that has been detected and not detected onto the moving structure 3 of the magnesium alloy integrated frame of the electric vehicle; An electric vehicle magnesium alloy integrated frame impact detection structure 6 for performing a drop impact test on the magnesium alloy integrated frame body 9 of the electric vehicle is further installed on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle; The electric vehicle magnesium alloy integrated frame impact detection structure 6 is used for the impact tests of columns A, B, C, and D of the magnesium alloy integrated frame body 9 of the electric vehicle; An electric vehicle magnesium alloy integrated frame detection assembly 5 is further assembled on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle, and the electric vehicle magnesium alloy integrated frame detection assembly 5 includes a three-coordinate measuring device 51 for measuring the coordinates of the magnesium alloy integrated frame body 9 of the electric vehicle, a resonance modal analysis device 52 for performing resonance simulation detection by assembling sensors on the inner side of the magnesium alloy integrated frame body 9 of the electric vehicle, and a static load test device 53 for applying a static load to the magnesium alloy integrated frame body 9 of the electric vehicle, observing the deformation of the frame, measuring the stress and strain of key parts, and evaluating the strength and stiffness of the frame under static load; An ultrasonic flaw detection device 7 for detecting the welding seam condition of the magnesium alloy integrated frame body 9 of the electric vehicle by ultrasonic detection is further installed on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle; A controller 8 for controlling the device is installed outside the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle.

[0021] Embodiment 2, please refer to Figures 6 - 11 , in this embodiment, a moving structure 3 of the magnesium alloy integrated frame of the electric vehicle in a quality detection device of the magnesium alloy integrated frame of the electric vehicle is provided; The moving structure 3 of the magnesium alloy integrated frame of the electric vehicle includes a moving frame plate 301, an assembly groove 302 is formed inside the moving frame plate 301, and a bidirectional screw rod 304 is rotatably installed inside the assembly groove 302. One end of the bidirectional screw rod 304 rotatably penetrates through the assembly groove 302 and is connected to a servo motor 305 fixedly installed on the inner wall of the moving frame plate 301.

[0022] The servo motor 305 is fixedly installed on the inner wall of the moving frame plate 301 and is used for actively driving the bidirectional screw rod 304 to rotate.

[0023] Inside the assembly groove 302, an assembly moving frame 303 is movably arranged, which is sleeved on the external part of the bidirectional screw rod 304 by spiral transmission. There are two assembly moving frames 303 in total, and adjustment grooves 306 are formed on the inner sides of the two assembly moving frames 303; Inside the adjustment groove 306, a bidirectional screw rod 308 is rotatably installed. One end of the bidirectional screw rod 308 rotatably penetrates the inner wall of the adjustment groove 306 and is connected to a servo motor 309 fixedly installed on the inner wall of the assembly moving frame 303; The servo motor 309 is fixedly installed on the inner wall of the assembly moving frame 303 and actively drives the bidirectional screw rod 308 to rotate.

[0024] Inside the adjustment groove 306, an adjustment frame 307 is movably arranged, which is sleeved on the external part of the bidirectional screw rod 308 by spiral transmission. The top end of the adjustment frame 307 is equipped with a downward pressure cylinder 310, and a clamping plate 311 for clamping and fixing the magnesium alloy integrated vehicle frame 9 of the electric vehicle on the adjustment frame 307 is installed at the output end of the downward pressure cylinder 310.

[0025] The adjustment frame 307 can be adjusted according to the position of the magnesium alloy integrated vehicle frame 9 of the electric vehicle through the bidirectional screw rod 308, and the position of the assembly moving frame 303 can be adjusted according to the bidirectional screw rod 304.

[0026] The moving structure 3 of the magnesium alloy integrated vehicle frame of the electric vehicle includes a driving structure 31 installed at the bottom of the moving frame plate 301. The driving structure 31 includes a fixed frame 3101 fixedly arranged at the bottom of the moving frame plate 301. Four driving rods 3102 are rotatably installed inside the fixed frame 3101, and the bottom ends of the four driving rods 3102 rotatably penetrate outside the fixed frame 3101 and are respectively fixedly provided with driving wheels 3109 located on both sides of the circulating track 2; Worms 3103 are fixedly installed on the outer walls of the four driving rods 3102. The worms 3103 are engaged with a worm screw 3104. The worm screw 3104 is fixedly connected with two groups of transmission rods 3105. Belt pulleys 3106 are fixedly assembled on the outer walls of one ends of the two groups of transmission rods 3105; Belt 3107 is wound around the belt pulleys 3106 of the two groups of transmission rods 3105; One group of the transmission rods 3105 is connected with a servo motor 3108.

[0027] The servo motor 3108 is fixedly installed on the inner wall of the fixed frame 3101, and the servo motor 3108 is used to actively drive one group of the transmission rods 3105 to rotate.

[0028] Example three, please refer to Figures 12 - 14In this embodiment, a magnesium alloy integrated frame loading and unloading structure 4 of an electric vehicle is provided in a magnesium alloy integrated frame quality detection device of an electric vehicle; The electric vehicle magnesium alloy integrated frame loading and unloading structure 4 includes an assembly rack 401 fixedly mounted on one side of the electric vehicle magnesium alloy integrated frame processing frame 1, and the assembly rack 401 is equipped with two electric vehicle magnesium alloy integrated frame loading and unloading components 41 for loading and unloading the electric vehicle magnesium alloy integrated frame body 9 respectively; The electric vehicle magnesium alloy integrated frame assembly and disassembly assembly 41 includes a transmission plate 4101 rotatably mounted on an assembly frame 401; The transmission plate 4101 is used to place the magnesium alloy integrated frame body 9 of the electric vehicle, and rotate and move to the inside of the assembly frame 4103; The bottom end of the transmission disc 4101 is connected to a servo motor 4102 fixedly mounted on the inner side of the assembly frame 401, and the electric vehicle magnesium alloy integrated frame assembly and disassembly assembly 41 includes an assembly frame 4103 fixedly mounted on the electric vehicle magnesium alloy integrated frame processing frame 1.

[0029] The first servo motor 4102 is used to actively drive the transmission plate 4101 to rotate on the assembly frame 401.

[0030] A moving frame 4104 is fixedly installed on the top of the assembly frame 4103, and an adjusting screw rod 4106 is rotatably installed inside the moving frame 4104, and one end of the adjusting screw rod 4106 is connected to a No. 5 servo motor 4118 fixedly installed on the inner wall of the moving frame 4104; The fifth servo motor 4118 is used to actively drive the adjusting screw rod 4106 to rotate; The movable frame 4104 is internally provided with a load-bearing screw block 4105 which is movably provided with a spiral transmission sleeve on the outside of the adjusting screw rod 4106 .

[0031] The load-bearing screw block 4105 cooperates with the drive of the adjusting screw rod 4106 to move and adjust the position inside the assembly frame 4103.

[0032] A hydraulic cylinder 4107 is fixedly installed at the bottom of the load-bearing screw block 4105, and a mobile frame 4108 is fixedly installed at the output end of the hydraulic cylinder 4107. The inner walls of both sides of the mobile frame 4108 are provided with load-bearing grooves 4109, and two sets of clamping frames 4110 are movably arranged inside the load-bearing grooves 4109; There are two groups of clamping frames 4110 in total, and the two groups of clamping frames 4110 are axially symmetrically arranged along the middle of the moving frame 4108; A two-way lead screw 4111 rotatably arranged on the inner wall of the clamping frame 4110 is arranged in a spiral transmission manner and is arranged inside the moving frame 4108. One end of the two-way lead screw 4111 is connected to a second servo motor 4112 fixedly installed on the inner wall of the moving frame 4108.

[0033] The second servo motor 4112 is used to actively drive the two-way lead screw 4111 to rotate.

[0034] An assembly shaft frame 4113 is assembled on the outer side of the bottom end of the clamping frame 4110. A clamping bottom plate 4114 is rotatably installed inside the assembly shaft frame 4113. A first side shaft frame 4115 is fixedly installed on the outer side wall of the clamping bottom plate 4114. A telescopic air cylinder 4116 is rotatably installed inside the first side shaft frame 4115. The top end of the telescopic air cylinder 4116 is rotatably installed on a second side shaft frame 4117 fixedly installed on the outer side wall of the clamping frame 4110.

[0035] The telescopic air cylinder 4116 is used to adjust the distance between the second side shaft frame 4117 and the first side shaft frame 4115, and can make the clamping bottom plate 4114 rotate along the assembly shaft frame 4113.

[0036] Example 4, please refer to Figures 15 - 18 , in this example, an impact detection structure 6 for an electric vehicle magnesium alloy integrated vehicle frame in an electric vehicle magnesium alloy integrated vehicle frame quality detection device is provided; The impact detection structure 6 for the electric vehicle magnesium alloy integrated vehicle frame includes an impact simulation box 601 fixedly installed on the surface of the electric vehicle magnesium alloy integrated vehicle frame processing machine frame 1. An adjustment top plate 602 is rotatably assembled inside the top of the impact simulation box 601. An external tooth ring 603 is fixedly assembled on the outer edge of the adjustment top plate 602. The external tooth ring 603 meshes with a spur gear 604. The top of the spur gear 604 is connected to a third servo motor 605.

[0037] The third servo motor 605 is fixedly assembled on the outer wall of the impact simulation box 601, and the third servo motor 605 is used to actively drive the spur gear 604 to rotate; An adjustment shaft rod 606 is rotatably installed inside the adjustment top plate 602, and a spur gear roller 607 is fixedly assembled on the outer wall of one end of the adjustment shaft rod 606. The spur gear roller 607 meshes with a tooth plate frame 608 movably arranged inside the adjustment top plate 602; An active air cylinder 609 is assembled between the tooth plate frame 608 and the adjustment top plate 602; The output end of the active air cylinder 609 is fixedly arranged with the tooth plate frame 608, and the other end of the active air cylinder 609 is vertically movably assembled on the inner wall of the adjustment top plate 602; A movable plate 610 is horizontally movably assembled inside the tooth plate frame 608, and an active air cylinder 611 is installed at the bottom end of the movable plate 610; The movable cylinder two 611 is used to apply force to the movable plate 610 to push the toothed plate frame 608 out of engagement with the straight toothed roller 607.

[0038] At the bottom end of the adjusting shaft rod 606, an impact swing arm 612 is integrally fixed. An extension frame 616 is movably arranged inside the impact swing arm 612. A screw barrel 615 which is movably located inside the impact swing arm 612 is fixedly arranged in the middle of the extension frame 616. A vertical screw rod 613 is helically driven inside the screw barrel 615; The top end of the vertical screw rod 613 is connected to a fourth servo motor 614 fixedly assembled inside the impact swing arm 612; The fourth servo motor 614 is used to actively drive the vertical screw rod 613 to rotate; At the bottom end of the extension frame 616, an impact head 617 is fixedly installed at the center position of the impact simulation box 601. And at one end of the bottom end of the extension frame 616 far away from the impact head 617, an assembly rod 618 is integrally fixed. A plurality of counterweight blocks 619 are detachably installed on the outer side of the assembly rod 618.

[0039] According to the above embodiments, the working principle of the present invention is as follows: The magnesium alloy integral vehicle frame 9 of the electric vehicle is loaded onto the moving structure 3 of the magnesium alloy integral vehicle frame of the electric vehicle through the loading and unloading structure 4 of the magnesium alloy integral vehicle frame of the electric vehicle. The moving structure 3 of the magnesium alloy integral vehicle frame of the electric vehicle moves on the circulating track 2 through the driving structure 31 to the detection component 5 of the magnesium alloy integral vehicle frame of the electric vehicle. The coordinate measuring device 51 measures the coordinates of multiple characteristic points on the vehicle frame of the magnesium alloy integral vehicle frame of the electric vehicle through a probe, and then compares and analyzes with the design model, so as to accurately measure the dimensional deviation of the magnesium alloy integral vehicle frame 9 of the electric vehicle, detect minute deformation and position deviation. Through the resonance modal analysis device 52, by arranging sensors on the magnesium alloy integral vehicle frame 9 of the electric vehicle, the vibration response signal of the magnesium alloy integral vehicle frame 9 under the excitation action is collected, and the modal parameters such as the natural frequency and vibration mode of the magnesium alloy integral vehicle frame 9 are analyzed to evaluate the dynamic performance of the magnesium alloy integral vehicle frame 9 of the electric vehicle and avoid resonance phenomena in actual use. Then, through the static load test device 53, by applying a static load that may be encountered in actual use, the deformation situation of the magnesium alloy integral vehicle frame 9 of the electric vehicle is observed, the stress and strain of the key parts are measured, and the strength and stiffness of the magnesium alloy integral vehicle frame 9 of the electric vehicle under the static load are evaluated; Then, the moving structure 3 of the magnesium alloy integral vehicle frame of the electric vehicle moves on the circulating track 2 to the impact detection structure 6 of the magnesium alloy integral vehicle frame of the electric vehicle for drop impact detection; After impact detection, the magnesium alloy integral frame body 9 of the electric vehicle is moved into the ultrasonic flaw detector 7 for ultrasonic inspection. For the welding seams or cracks in the magnesium alloy integral frame body 9 of the electric vehicle, internal inspection of the welds can detect internal defects such as cracks, incomplete penetration, and pores; The magnesium alloy integral frame body 9 of the electric vehicle is placed on the surface of the driving disk 4101. After starting the first servo motor 4102, the first servo motor 4102 drives the magnesium alloy integral frame body 9 on the driving disk 4101 to rotate and move inside the assembly frame 4103. After starting the hydraulic cylinder 4107, the hydraulic cylinder 4107 lowers the moving frame 4108 to the position of the magnesium alloy integral frame body 9 of the electric vehicle; Before the clamping bottom plate 4114 clamps the magnesium alloy integral frame body 9 of the electric vehicle, the telescopic cylinder 4116 is in the extended state, making the clamping bottom plate 4114 and the clamping frame 4110 in a vertical state. When the clamping frame 4110 moves inside the magnesium alloy integral frame body 9 of the electric vehicle, the telescopic cylinder 4116 is in the extended state, causing the clamping bottom plate 4114 to rotate along the assembly shaft frame 4113 and clamping and positioning the clamping bottom plate 4114 through the magnesium alloy integral frame body 9 of the electric vehicle; When adjusting the distance between the clamping frames 4110, after starting the second servo motor 4112, the second servo motor 4112 drives the bidirectional lead screw 4111 to rotate after starting, so that the bidirectional lead screw 4111 moves the clamping frames 4110 inside the load-bearing groove 4109 along the bidirectional lead screw 4111, and applicability adjustment can be performed according to the top position of the magnesium alloy integral frame body 9 of the electric vehicle; After the magnesium alloy integral frame body 9 of the electric vehicle is fixed, the hydraulic cylinder 4107 raises the magnesium alloy integral frame body 9 of the electric vehicle from the driving disk 4101, and the fifth servo motor 4118 is started. The fifth servo motor 4118 drives the adjusting lead screw 4106 to rotate. Through the adjusting lead screw 4106, screw drive is performed on the load-bearing nut 4105, so that the load-bearing nut 4105 moves the magnesium alloy integral frame body 9 of the electric vehicle along the adjusting lead screw 4106 inside the moving frame 4104 to the magnesium alloy integral frame moving structure 3 of the electric vehicle; The magnesium alloy integral frame moving structure 3 of the electric vehicle fixedly sets the bottom of the magnesium alloy integral frame body 9 through two sets of adjusting frames 307. After the magnesium alloy integral frame body 9 of the electric vehicle is placed on the adjusting frames 307, the pressing cylinder 310 clamps the clamping plate 311 on the magnesium alloy integral frame body 9 of the electric vehicle; The magnesium alloy integral frame moving structure 3 of the electric vehicle moves on the circular track 2 through the driving structure 31; The driving structure 31 starts the servo motor three 3108. After the servo motor three 3108 starts, it drives the single transmission rod 3105 to rotate. Between the two transmission rods 3105, they move through the belt 3107 on the pulley 3106 to rotate synchronously. The transmission rod 3105 drives the worm 3104 and its pulley 3106 to rotate. The worm 3104 meshes with the worm gear 3103, and drives the driving wheel 3109 at the bottom of the driving rod 3102 to rotate on both sides of the circulating track 2. Through the rotating driving wheel 3109, it can move along the circulating track 2 to perform automatic detection and processing on the magnesium alloy integrated vehicle frame 9 of the electric vehicle; In the moving structure 3 of the magnesium alloy integrated vehicle frame of the electric vehicle, the distance between the two assembled moving frames 303 can be adjusted. By starting the servo motor one 305, the servo motor one 305 starts to drive the bidirectional screw one 304 to rotate. The bidirectional screw one 304 performs screw drive on the two assembled moving frames 303, so that the assembled moving frames 303 move along the bidirectional screw one 304 inside the assembly groove 302 to adjust their positions, and then the distance between the two assembled moving frames 303 can be adjusted; In the moving structure 3 of the magnesium alloy integrated vehicle frame of the electric vehicle, the distance between the two adjusting frames 307 can also be adjusted. Start the servo motor two 309. After the servo motor two 309 starts, it drives the bidirectional screw two 308 to rotate, so that the two adjusting frames 307 are driven by screw along the bidirectional screw two 308 inside the assembled moving frame 303 to adjust the distance between the two adjusting frames 307, which is suitable for assembling magnesium alloy integrated vehicle frames 9 of different specifications; When the magnesium alloy integrated vehicle frame 9 of the electric vehicle moves to the inside of the impact simulation box 601, by starting the third servo motor 605, the third servo motor 605 drives the spur gear 604 to rotate, so that the spur gear 604 meshes with the external tooth ring 603, and the adjusting top plate 602 rotates along the inside of the impact simulation box 601, so that the impact head 617 is aligned with the position where the magnesium alloy integrated vehicle frame 9 of the electric vehicle needs to be subjected to impact detection. After the adjusting top plate 602 is adjusted, by starting the movable cylinder one 609, the movable cylinder one 609 moves the tooth plate frame 608. Through the tooth plate frame 608 meshing with the spur roller 607, the adjusting shaft rod 606 rotates at an angle along the adjusting top plate 602. When the movable cylinder two 611 rises and starts, the movable cylinder two 611 raises the tooth plate frame 608, so that the tooth plate frame 608 pushes to disengage from the engagement of the spur roller 607, and then the impact swing arm 612 can descend, and the impact head 617 impacts the magnesium alloy integrated vehicle frame 9 of the electric vehicle for an impact experiment; The distance between the impact head 617 and the impact swing arm 612 can be adjusted. Start the fourth servo motor 614. After the fourth servo motor 614 is started, it drives the vertical screw 613 to rotate. After the vertical screw 613 rotates, it performs a screw drive on the screw barrel 615, causing the screw barrel 615 to move along the vertical screw 613, and moving the extension frame 616 along the impact swing arm 612 to adjust the distance between the impact head 617 and the impact swing arm 612.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A quality inspection device for an electric vehicle magnesium alloy integrated frame, characterized in that: include: An electric vehicle magnesium alloy integrated frame processing machine frame (1) is provided with a circulating rail (2) which is connected end to end in a loop and is fixedly mounted thereon; A plurality of electric vehicle magnesium alloy integrated frame moving structures (3) are movably arranged on the circulation rail (2), and an electric vehicle magnesium alloy integrated frame body (9) is detachably mounted on the electric vehicle magnesium alloy integrated frame moving structure (3); The electric vehicle magnesium alloy integrated frame processing machine frame (1) is equipped with an electric vehicle magnesium alloy integrated frame loading and unloading structure (4) for automatically loading and unloading the electric vehicle magnesium alloy integrated frame body (9); The electric vehicle magnesium alloy integrated frame processing machine frame (1) is also provided with an electric vehicle magnesium alloy integrated frame impact detection structure (6) for performing a fall impact detection on the electric vehicle magnesium alloy integrated frame body (9); The electric vehicle magnesium alloy integrated frame impact detection structure (6) comprises an impact simulation box (601) fixedly mounted on the surface of an electric vehicle magnesium alloy integrated frame processing machine frame (1); an adjustable top plate (602) is rotatably mounted on the inner side of the top of the impact simulation box (601); an outer gear ring (603) is fixedly mounted on the outer edge of the adjustable top plate (602); the outer gear ring (603) is meshed with a spur gear (604); and a No. 3 servo motor (605) is connected to the top of the spur gear (604).

2. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 1, characterized in that: The electric vehicle magnesium alloy integrated frame moving structure (3) comprises a frame moving plate (301), an assembly groove (302) is provided on the inner side of the frame moving plate (301), and a bidirectional screw rod (304) is rotatably mounted on the inner side of the assembly groove (302), one end of the bidirectional screw rod (304) is rotatably inserted into the assembly groove (302), and is connected to a servo motor (305) fixedly mounted on the inner wall of the frame moving plate (301).

3. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 2, characterized in that: An assembly moving frame (303) with a spiral transmission sleeve arranged outside the first bidirectional screw (304) is movably arranged inside the assembly groove (302), and there are two assembly moving frames (303) in total, and an adjustment groove (306) is provided inside the two assembly moving frames (303); A second bidirectional screw rod (308) is rotatably mounted inside the adjusting groove (306), one end of which rotatably penetrates the inner wall of the adjusting groove (306) and is connected to a second servo motor (309) fixedly mounted on the inner wall of the assembly moving frame (303).

4. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 3 is characterized in that: An adjusting frame (307) with a spiral transmission sleeve arranged outside the second bidirectional screw rod (308) is movably arranged inside the adjusting groove (306), a downward pressure cylinder (310) is mounted on the top of the adjusting frame (307), and a clamping plate (311) is mounted on the output end of the downward pressure cylinder (310) for clamping and fixing the magnesium alloy integrated frame body (9) of the electric vehicle on the adjusting frame (307).

5. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 1, characterized in that: The magnesium alloy integrated frame mobile structure (3) of the electric vehicle comprises a driving structure (31) installed at the bottom of the moving frame plate (301), the driving structure (31) comprising a fixing frame (3101) fixedly installed at the bottom of the moving frame plate (301), four driving rods (3102) rotatably installed inside the fixing frame (3101), and the bottom ends of the four driving rods (3102) are all rotatably passed through the outside of the fixing frame (3101), and driving wheels (3109) located on both sides of the circulation rail (2) are respectively fixedly installed; The outer walls of the four driving rods (3102) are all fixedly mounted with worm wheels (3103), the worm wheels (3103) are meshed with worms (3104), the worms (3104) are fixedly connected with two groups of transmission rods (3105), and the outer walls of one end of the two groups of transmission rods (3105) are fixedly mounted with pulleys (3106); Belts (3107) are wound around the pulleys (3106) of the two sets of transmission rods (3105); One set of the transmission rods (3105) is connected to a servo motor three (3108).

6. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 1, characterized in that: The electric vehicle magnesium alloy integrated frame loading and unloading structure (4) comprises an assembly rack (401) fixedly mounted on one side of an electric vehicle magnesium alloy integrated frame processing machine rack (1), and the assembly rack (401) is mounted with two electric vehicle magnesium alloy integrated frame loading and unloading components (41) for respectively loading and unloading the electric vehicle magnesium alloy integrated frame body (9); The electric vehicle magnesium alloy integrated frame assembly and disassembly assembly (41) comprises a transmission plate (4101) rotatably mounted on an assembly frame (401); The bottom end of the transmission disc (4101) is connected to a No. 1 servo motor (4102) fixedly mounted on the inner side of the assembly frame (401), and the electric vehicle magnesium alloy integrated frame assembly and disassembly assembly (41) includes an assembly frame (4103) fixedly mounted on the electric vehicle magnesium alloy integrated frame processing frame (1).

7. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 6, characterized in that: A moving frame (4104) is fixedly mounted on the top of the assembly frame (4103), and an adjusting screw rod (4106) is rotatably mounted inside the moving frame (4104), and one end of the adjusting screw rod (4106) is connected to a No. 5 servo motor (4118) fixedly mounted on the inner wall of the moving frame (4104); The movable frame (4104) is internally provided with a load-bearing screw block (4105) which is movably arranged inside and is spirally driven and sleeved on the outside of the adjusting screw rod (4106).

8. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 7, characterized in that: A hydraulic cylinder (4107) is fixedly installed at the bottom of the load-bearing screw block (4105), a movable frame (4108) is fixedly installed at the output end of the hydraulic cylinder (4107), and load-bearing grooves (4109) are provided on the inner walls of both sides of the movable frame (4108), and two sets of clamping frames (4110) are movably arranged inside the load-bearing grooves (4109); The inner wall of the clamping frame (4110) is spirally driven to rotate a bidirectional screw rod (4111) arranged on the inner side of the moving frame (4108); one end of the bidirectional screw rod (4111) is connected to a second servo motor (4112) fixedly mounted on the inner wall of the moving frame (4108).

9. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 8, characterized in that: The outer side of the bottom end of the clamping frame (4110) is equipped with an assembly shaft frame (4113), the inner side of the assembly shaft frame (4113) is rotatably mounted with a clamping base plate (4114), the outer side of the side wall of the clamping base plate (4114) is fixedly mounted with a side shaft frame 1 (4115), the inner side of the side shaft frame 1 (4115) is rotatably mounted with a telescopic cylinder (4116), and the top end of the telescopic cylinder (4116) is rotatably mounted with a side shaft frame 2 (4117) fixedly mounted on the outer side wall of the clamping frame (4110).

10. The quality inspection device for an electric vehicle magnesium alloy integrated frame according to claim 1, characterized in that: An adjusting shaft (606) is rotatably mounted on the inner side of the adjusting top plate (602), and a spur-tooth roller (607) is fixedly mounted on the outer wall of one end of the adjusting shaft (606), and the spur-tooth roller (607) is meshed with a toothed plate frame (608) movably mounted on the inner side of the adjusting top plate (602); A movable cylinder 1 (609) is installed between the tooth plate frame (608) and the adjusting top plate (602); A movable plate (610) is installed on the inner side of the tooth plate frame (608) in a transversely movable manner, and a movable cylinder 2 (611) is installed at the bottom end of the movable plate (610); An impact swing arm (612) is integrally fixed to the bottom end of the adjusting shaft (606), an extension frame (616) is movably provided inside the impact swing arm (612), a screw barrel (615) movably located inside the impact swing arm (612) is fixedly provided in the middle of the extension frame (616), and a vertical screw rod (613) is provided inside the screw barrel (615) for spiral transmission; The top end of the vertical screw rod (613) is connected to a fourth servo motor (614) fixedly mounted on the inner side of the impact swing arm (612); An impact head (617) is fixedly mounted on the bottom end of the extension frame (616) at the center of the impact simulation box (601), and an assembly rod (618) is integrally fixed to one end of the bottom end of the extension frame (616) away from the impact head (617), and a plurality of counterweight blocks (619) are detachably mounted on the outside of the assembly rod (618).

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