An electric vehicle magnesium alloy integrated chassis quality detection device

Abstract

The present invention relates to the technical field of physical detection in the processing of vehicle frames, and particularly relates to a quality detection device for an electric vehicle magnesium alloy integrated vehicle frame, including: a processing machine frame for the electric vehicle magnesium alloy integrated vehicle frame; a circulating track fixedly installed thereon and connected end to end in a cycle; a plurality of moving structures for the electric vehicle magnesium alloy integrated vehicle frame are movably arranged on the circulating track, and an electric vehicle magnesium alloy integrated vehicle frame body is detachably installed on the moving structure for the electric vehicle magnesium alloy integrated vehicle frame; the present invention has the remarkable effects of automation and high efficiency. The driving of the moving structure for the electric vehicle magnesium alloy integrated vehicle 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 vehicle frame between various detection and assembly stations, reducing the time and error of manual handling and positioning. Each detection 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.

Description

Technical Field

[0001] The present invention relates to the technical field of physical detection for frame processing, and particularly relates to a quality detection device for an electric vehicle magnesium alloy integrated frame. 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 for 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 CN20822,4167U). This patented technology discloses a frame welding quality detection device, which includes a workbench. A detection part and clamping parts located on both sides of the detection part are provided 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 parts include a support platform installed on the workbench and a clamping block slidably connected to the support platform. A first wedge rod is provided 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 provided 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 frames is usually ultrasonic detection equipment. However, when using ultrasonic detection equipment to detect the welding quality of frames, 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 magnesium alloy integrated frame of the vehicle body, the quality of the frame is heavy, which is not convenient for manual handling and detection. It is necessary to solve the problems in the prior art that the frame can be automatically loaded and unloaded and automatically detected.

[0004] Therefore, those skilled in the art have provided a quality detection device for an electric vehicle magnesium alloy integrated frame 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:

[0006] A quality detection device for an electric vehicle magnesium alloy integrated frame, including:

[0007] Processing frame for the magnesium alloy integrated frame of an electric vehicle; a circulating track that is fixedly installed in a circulating and end-to-end connection is provided on it;

[0008] A number of moving structures for the magnesium alloy integrated frame of an electric vehicle are movably arranged on the circulating track, and a magnesium alloy integrated frame body of an electric vehicle is detachably installed on the moving structure for the magnesium alloy integrated frame of an electric vehicle;

[0009] An automatic loading and unloading structure for the magnesium alloy integrated frame of an electric vehicle is assembled on the processing frame for the magnesium alloy integrated frame of an electric vehicle;

[0010] An impact detection structure for the magnesium alloy integrated frame of an electric vehicle, which conducts a drop impact test on the magnesium alloy integrated frame body of an electric vehicle, is also installed on the processing frame for the magnesium alloy integrated frame of an electric vehicle;

[0011] The impact detection structure for the magnesium alloy integrated frame of an electric vehicle includes an impact simulation box fixedly installed on the surface of the processing frame for the magnesium alloy integrated frame of an electric vehicle. An adjusting top plate is rotatably assembled inside the top of the impact simulation box. An external gear ring is fixedly assembled on the outer edge of the adjusting top plate. The external gear ring meshes with a spur gear, and a third servo motor is connected to the top of the spur gear.

[0012] Preferably: The moving structure for the magnesium alloy integrated frame of an electric vehicle 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.

[0013] Preferably: An assembly moving frame, which is spirally driven and sleeved outside the bidirectional screw one, is movably arranged inside the assembly groove. The number of the assembly moving frames is two in total, and adjusting grooves are formed inside both of the two assembly moving frames;

[0014] A bidirectional screw two is rotatably installed inside the adjusting groove. One end of the bidirectional screw two rotatably penetrates through the inner wall of the adjusting groove and is connected to a servo motor two fixedly installed on the inner wall of the assembly moving frame.

[0015] Preferably: An adjusting frame, which is spirally driven and sleeved outside the bidirectional screw two, is movably arranged inside the adjusting groove. A pressing cylinder is assembled at the top end of the adjusting frame, and a clamping plate for clamping and fixing the magnesium alloy integrated frame body of an electric vehicle on the adjusting frame is installed at the output end of the pressing cylinder.

[0016] Preferably: The moving structure for the magnesium alloy integrated frame of an electric vehicle 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 all rotatably penetrate outside the fixed frame and are respectively fixedly provided with driving wheels located on both sides of the circulating track;

[0017] Worms are fixedly installed on the outer walls of the four driving rods, and the worms are engaged with worm gears. The worm gears are fixedly connected with two groups of transmission rods, and belt pulleys are fixedly assembled on the outer walls of one ends of the two groups of transmission rods;

[0018] Belts are wound around the belt pulleys of the two groups of transmission rods;

[0019] One group of transmission rods is connected with a servo motor three.

[0020] Preferably, the loading and unloading structure of the electric vehicle magnesium alloy integrated frame includes an assembly frame fixedly installed on one side of the processing frame of the electric vehicle magnesium alloy integrated frame, and two electric vehicle magnesium alloy integrated frame loading and unloading components for loading and unloading the electric vehicle magnesium alloy integrated frame body are installed on the assembly frame;

[0021] The electric vehicle magnesium alloy integrated frame loading and unloading component includes a transmission disc rotatably installed on the assembly frame;

[0022] The bottom end of the transmission disc is connected with a first servo motor fixedly installed inside the assembly frame, and the electric vehicle magnesium alloy integrated frame loading and unloading component includes an assembly frame fixedly installed on the processing frame of the electric vehicle magnesium alloy integrated frame.

[0023] 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 fifth servo motor fixedly installed on the inner side wall of the moving frame;

[0024] A load-bearing screw block with a spiral drive sleeved on the adjusting lead screw is movably arranged inside the moving frame.

[0025] 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 the inner walls of both sides of the moving frame, and two groups of clamping frames are movably arranged inside the load-bearing grooves;

[0026] A bidirectional lead screw rotatably arranged inside the moving frame is spirally driven on the inner wall of the clamping frame, and one end of the bidirectional lead screw is connected with a second servo motor fixedly installed on the inner wall of the moving frame.

[0027] 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, and a second side shaft frame fixedly installed on the outer side wall of the clamping frame is rotatably installed at the top end of the telescopic cylinder.

[0028] 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 is engaged with a tooth plate frame movably arranged inside the adjusting top disc;

[0029] A movable cylinder one is assembled between the toothed plate frame and the adjusting top disc;

[0030] A movable plate is horizontally movably assembled inside the toothed plate frame, and a movable cylinder two is installed at the bottom end of the movable plate;

[0031] An impact swing arm is integrally fixed at the bottom end of the adjusting shaft rod. An extension frame is movably arranged inside the impact swing arm. A screw cylinder that is movably located inside the impact swing arm is fixedly arranged in the middle of the extension frame, and a vertical screw rod is helically driven inside the screw cylinder;

[0032] The top end of the vertical screw rod is connected to a fourth servo motor fixedly assembled inside the impact swing arm;

[0033] An impact head is fixedly installed at the bottom end of the extension frame at the center position of the impact simulation box, and an assembly rod is integrally fixed at one end of the bottom end of the extension frame away from the impact head. A plurality of counterweight blocks are detachably installed on the outer side of the assembly rod.

[0034] Technical effects and advantages of the present invention:

[0035] 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 telescopic cylinder cooperate to achieve precise clamping and positioning of frames of different specifications. The assembly moving frame and adjusting the frame distance in the moving structure of the electric vehicle magnesium alloy integrated frame can also be flexibly adjusted, facilitating the fixing and transfer of frames of different sizes in the system, greatly improving the compatibility of the system with various frames, and reducing the operational inconvenience and equipment limitations caused by frame specification differences.

[0036] The present invention has significant 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 the servo motor and precision transmission components to achieve automated movement, ensuring the rapid and accurate transfer of the frame between each inspection and assembly station, 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, reducing labor costs and production cycles. Brief Description of the Drawings

[0037] 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;

[0038] 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;

[0039] 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;

[0040] Figure 4 It is a schematic structural diagram of the disassembled structure in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0041] Figure 5 It is a schematic structural diagram of the circulating track in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0042] Figure 6 It is a schematic structural diagram of the moving structure of the electric vehicle magnesium alloy integrated frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0043] Figure 7 It 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;

[0044] Figure 8 It is a schematic structural diagram of the fixed frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0045] Figure 9 It is a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application Figure 8 The schematic structural diagram at position A in;

[0046] Figure 10 It is a schematic structural diagram of the first bidirectional screw in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0047] Figure 11 It is a schematic structural diagram of the adjusting frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0048] Figure 12 It is a schematic structural diagram of the loading and unloading structure of the electric vehicle magnesium alloy integrated frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0049] Figure 13 It is a schematic structural diagram of the moving frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0050] Figure 14 It is a schematic structural diagram of the moving rack in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0051] Figure 15 It is a schematic structural diagram of the impact detection structure of the electric vehicle magnesium alloy integrated frame in a quality inspection device for an electric vehicle magnesium alloy integrated frame provided by the present application;

[0052] Figure 16It 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;

[0053] Figure 17 It is a quality inspection device for an integrated magnesium alloy frame of an electric vehicle provided by this application Figure 16 Schematic structural diagram of the structure at position B in it;

[0054] 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.

[0055] In the figure:

[0056] 1. Processing frame for the integrated magnesium alloy frame of the electric vehicle; 2. Circulating track;

[0057] 3. Moving structure for the integrated magnesium alloy frame of the electric vehicle; 301. Moving frame plate; 302. Assembly groove; 303. Assembly moving frame; 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;

[0058] 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;

[0059] 4. Loading and unloading structure for the integrated magnesium alloy frame of the electric vehicle; 401. Assembly frame;

[0060] 41. Loading and unloading assembly for the integrated magnesium alloy frame of the electric vehicle; 4101. Transmission disk; 4102. First servo motor; 4103. Assembly frame; 4104. Moving frame; 4105. Load-bearing screw block; 4106. Adjusting screw rod; 4107. Hydraulic cylinder; 4108. Moving frame; 4109. Load-bearing groove; 4110. Clamping frame; 4111. Bidirectional screw; 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;

[0061] 5. Detection component for the integrated magnesium alloy frame of the electric vehicle; 51. Three-coordinate measuring device; 52. Resonance mode analysis device; 53. Static load test device;

[0062] 6. Impact Detection Structure for the Integrated Magnesium Alloy Frame of an Electric Vehicle; 601. Impact Simulation Box; 602. Adjusting Top Plate; 603. Outer Gear Ring; 604. Straight Gear; 605. No. 3 Servo Motor; 606. Adjusting Shaft Rod; 607. Straight Tooth Roller; 608. Tooth Plate Frame; 609. First Moving Cylinder; 610. Moving Plate; 611. Second Moving Cylinder; 612. Impact Swing Arm; 613. Vertical Screw Rod; 614. No. 4 Servo Motor; 615. Screw Cylinder; 616. Extension Frame; 617. Impact Head; 618. Assembly Rod; 619. Counterweight Block;

[0063] 7. Ultrasonic Flaw Detection Device; 8. Controller; 9. Integrated Magnesium Alloy Frame Body of an Electric Vehicle. Specific Embodiment

[0064] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The examples of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the invention and its practical applications, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for specific purposes.

[0065] Example 1, please refer to Figures 1 to 5 , in this embodiment, a quality detection device for the integrated magnesium alloy frame of an electric vehicle is provided, including: an integrated magnesium alloy frame processing rack 1 for an electric vehicle; a circulating track 2 fixedly installed thereon and connected end to end in a loop;

[0066] A number of moving structures 3 for the integrated magnesium alloy frame of an electric vehicle are movably arranged on the circulating track 2, and an integrated magnesium alloy frame body 9 of an electric vehicle is detachably installed on the moving structure 3 for the integrated magnesium alloy frame of an electric vehicle;

[0067] The moving structure 3 for the integrated magnesium alloy frame of an electric vehicle includes a structure that can actively and detachably assemble the integrated magnesium alloy frame body 9 of an electric vehicle, and the moving structure 3 for the integrated magnesium alloy frame of an electric vehicle can move in a loop along the integrated magnesium alloy frame processing rack 1 of an electric vehicle for automatic detection;

[0068] An automatic loading and unloading structure 4 for the integrated magnesium alloy frame of an electric vehicle is assembled on the integrated magnesium alloy frame processing rack 1 of an electric vehicle;

[0069] The automatic loading and unloading structure 4 for the integrated magnesium alloy frame of an electric vehicle is used to automatically load and unload the integrated magnesium alloy frame body 9 of an electric vehicle after detection and before detection and assemble it on the moving structure 3 for the integrated magnesium alloy frame of an electric vehicle;

[0070] An impact detection structure 6 for the magnesium alloy integrated frame of an electric vehicle for drop impact detection of the magnesium alloy integrated frame body 9 of the electric vehicle is also installed on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle;

[0071] The impact detection structure 6 for the magnesium alloy integrated frame of the electric vehicle 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;

[0072] An inspection component 5 for the magnesium alloy integrated frame of the electric vehicle is also assembled on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle, and the inspection component 5 for the magnesium alloy integrated frame of the electric vehicle includes a three-coordinate measuring device 51 for coordinate measurement of the magnesium alloy integrated frame body 9 of the electric vehicle, a resonance modal analysis device 52 for resonance simulation detection by assembling sensors inside the magnesium alloy integrated frame body 9 of the electric vehicle, and a static load test device 53 for static load on 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;

[0073] An ultrasonic flaw detection device 7 for ultrasonic detection of the welding seam condition of the magnesium alloy integrated frame body 9 of the electric vehicle is also installed on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle;

[0074] A controller 8 for controlling the device is installed outside the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle.

[0075] Example two, please refer to Figures 6 to 11 , in this example, a moving structure 3 for the magnesium alloy integrated frame of an electric vehicle in a quality inspection device for the magnesium alloy integrated frame of an electric vehicle is provided;

[0076] The moving structure 3 for 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 one 304 is rotatably installed inside the assembly groove 302. One end of the bidirectional screw rod one 304 rotatably penetrates through the assembly groove 302 and is connected to a servo motor one 305 fixedly installed on the inner wall of the moving frame plate 301.

[0077] The servo motor one 305 is fixedly installed on the inner wall of the moving frame plate 301 and is used to actively drive the rotation of the bidirectional screw rod one 304.

[0078] An assembly moving frame 303 sleeved on the bidirectional screw rod one 304 by screw drive is movably arranged inside the assembly groove 302. The number of the assembly moving frames 303 is two in total, and adjustment grooves 306 are formed inside both of the two assembly moving frames 303;

[0079] A two-way screw rod two 308 is rotatably installed inside the adjustment groove 306. One end of the two-way screw rod two 308 rotatably penetrates the inner wall of the adjustment groove 306 and is connected to a servo motor two 309 fixedly installed on the inner wall of the assembly moving frame 303;

[0080] The servo motor two 309 is fixedly installed on the inner wall of the assembly moving frame 303 and actively drives the two-way screw rod two 308 to rotate.

[0081] An adjustment frame 307 with a spiral drive sleeved outside the two-way screw rod two 308 is movably arranged inside the adjustment groove 306. A pressing cylinder 310 is assembled at the top end of the adjustment frame 307, 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 pressing cylinder 310.

[0082] 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 two-way screw rod two 308, and the position of the assembly moving frame 303 can be adjusted according to the two-way screw rod one 304.

[0083] The magnesium alloy integrated vehicle frame moving structure 3 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;

[0084] Worm gears 3103 are fixedly installed on the outer walls of the four driving rods 3102. The worm gears 3103 are engaged with a worm 3104. The worm 3104 is fixedly connected with two groups of transmission rods 3105. Belt wheels 3106 are fixedly assembled on the outer walls of one ends of the two groups of transmission rods 3105;

[0085] A belt 3107 is wound around the belt wheels 3106 of the two groups of transmission rods 3105;

[0086] One group of the transmission rods 3105 is connected with a servo motor three 3108.

[0087] The servo motor three 3108 is fixedly installed on the inner wall of the fixed frame 3101, and the servo motor three 3108 is used to actively drive one group of the transmission rods 3105 to rotate.

[0088] Embodiment 3. Please refer to Figures 12 to 14 , in this embodiment, a loading and unloading structure 4 of the magnesium alloy integrated vehicle frame in an electric vehicle magnesium alloy integrated vehicle frame quality detection device is provided;

[0089] The loading and unloading structure 4 of the magnesium alloy integrated frame of the electric vehicle includes an assembly frame 401 fixedly installed on one side of the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle, and two magnesium alloy integrated frame loading and unloading components 41 for loading and unloading the magnesium alloy integrated frame body 9 of the electric vehicle are installed on the assembly frame 401;

[0090] The magnesium alloy integrated frame loading and unloading component 41 of the electric vehicle includes a transmission disk 4101 rotatably installed on the assembly frame 401;

[0091] The transmission disk 4101 is used to place the magnesium alloy integrated frame body 9 of the electric vehicle and rotate and move it to the inside of the assembly frame 4103;

[0092] The bottom end of the transmission disk 4101 is connected to a first servo motor 4102 fixedly installed inside the assembly frame 401, and the magnesium alloy integrated frame loading and unloading component 41 of the electric vehicle includes an assembly frame 4103 fixedly installed on the processing frame 1 of the magnesium alloy integrated frame of the electric vehicle.

[0093] The first servo motor 4102 is used to actively drive the transmission disk 4101 to rotate on the assembly frame 401.

[0094] A moving frame 4104 is fixedly installed at the top end of the assembly frame 4103, and an adjusting screw rod 4106 is rotatably installed inside the moving frame 4104. One end of the adjusting screw rod 4106 is connected to a fifth servo motor 4118 fixedly installed on the inner side wall of the moving frame 4104;

[0095] The fifth servo motor 4118 is used to actively drive the adjusting screw rod 4106 to rotate;

[0096] A load-bearing screw block 4105 is movably arranged inside the moving frame 4104 and is spirally sleeved outside the adjusting screw rod 4106.

[0097] The load-bearing screw block 4105 can be moved and adjusted in position inside the assembly frame 4103 in cooperation with the drive of the adjusting screw rod 4106.

[0098] A hydraulic cylinder 4107 is fixedly installed at the bottom of the load-bearing screw block 4105. The output end of the hydraulic cylinder 4107 is fixedly installed with a moving frame 4108. Load-bearing grooves 4109 are formed on both inner side walls of the moving frame 4108, and two groups of clamping frames 4110 are movably arranged inside the load-bearing grooves 4109;

[0099] The total number of the two groups of clamping frames 4110 is two, and the two groups of clamping frames 4110 are symmetrically arranged along the middle of the moving frame 4108;

[0100] A two-way lead screw 4111 that is rotationally arranged inside the inner wall of the clamping frame 4110 and is arranged in a spiral drive manner 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.

[0101] The second servo motor 4112 is used to actively drive the two-way lead screw 4111 to rotate.

[0102] 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 of the side wall of the clamping bottom plate 4114. A telescopic cylinder 4116 is rotatably installed inside the first side shaft frame 4115. The top end of the telescopic cylinder 4116 is rotatably installed on a second side shaft frame 4117 fixedly installed on the outer side wall of the clamping frame 4110.

[0103] The telescopic 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.

[0104] Embodiment 4, please refer to Figures 15 to 18 , in this embodiment, 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;

[0105] 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 processing rack 1 of the electric vehicle magnesium alloy integrated vehicle frame. An adjustment top plate 602 is rotationally assembled inside the top of the impact simulation box 601. An external gear ring 603 is fixedly assembled on the outer edge of the adjustment top plate 602. The external gear ring 603 meshes with a spur gear 604. The top of the spur gear 604 is connected to a third servo motor 605.

[0106] 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;

[0107] An adjustment shaft rod 606 is rotatably installed inside the adjustment top plate 602, and a straight tooth roller 607 is fixedly assembled on the outer wall of one end of the adjustment shaft rod 606. The straight tooth roller 607 meshes with a toothed plate frame 608 movably arranged inside the adjustment top plate 602;

[0108] An active cylinder 609 is assembled between the toothed plate frame 608 and the adjustment top plate 602;

[0109] The output end of the active cylinder 609 is fixedly arranged with the toothed plate frame 608, and the other end of the active cylinder 609 is vertically movably assembled on the inner wall of the adjustment top plate 602;

[0110] Inside the toothed plate frame 608, a movable plate 610 is horizontally and movably assembled, and a second movable cylinder 611 is installed at the bottom end of the movable plate 610;

[0111] The second movable cylinder 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.

[0112] At the bottom end of the adjusting shaft rod 606, an impact swing arm 612 is integrally fixed. Inside the impact swing arm 612, an extension frame 616 is movably arranged. In the middle of the extension frame 616, a screw cylinder 615 that is movably located inside the impact swing arm 612 is fixedly arranged. Inside the screw cylinder 615, a vertical screw rod 613 is helically driven;

[0113] 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;

[0114] The fourth servo motor 614 is used to actively drive the vertical screw rod 613 to rotate;

[0115] 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 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.

[0116] According to the above embodiments, the working principle of the present invention is as follows:

[0117] The magnesium alloy integral vehicle frame 9 of the electric vehicle is loaded onto the magnesium alloy integral vehicle frame loading and unloading structure 4 of the electric vehicle and then onto the magnesium alloy integral vehicle frame moving structure 3 of the electric vehicle. The magnesium alloy integral vehicle frame moving structure 3 moves on the circulating track 2 through the driving structure 31 to the magnesium alloy integral vehicle frame detection component 5 of the electric vehicle. Through the three - coordinate measuring device 51, the coordinates of multiple feature points on the magnesium alloy integral vehicle frame 9 of the electric vehicle are measured by the probe, and then compared and analyzed with the design model. The dimensional deviation of the magnesium alloy integral vehicle frame 9 of the electric vehicle can be accurately measured, and small deformations and position deviations can be detected. 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 during actual use. Then, through the static load test device 53, by applying a static load that may be encountered in actual use, the deformation of the magnesium alloy integral vehicle frame 9 of the electric vehicle is observed, the stress and strain of key parts are measured, and the strength and stiffness of the magnesium alloy integral vehicle frame 9 of the electric vehicle under static load are evaluated;

[0118] Then, the magnesium alloy integrated frame moving structure 3 of the electric vehicle moves on the circular track 2 to the impact detection structure 6 of the magnesium alloy integrated frame of the electric vehicle for drop impact detection;

[0119] After the impact detection, the magnesium alloy integrated frame body 9 of the electric vehicle moves into the ultrasonic flaw detector 7 for ultrasonic inspection of the welding seams or cracks in the magnesium alloy integrated frame body 9 of the electric vehicle to detect internal defects such as cracks, incomplete penetration, and pores in the welds;

[0120] The magnesium alloy integrated frame body 9 of the electric vehicle is placed on the surface of the transmission disc 4101, and after starting the first servo motor 4102, the first servo motor 4102 drives the magnesium alloy integrated frame body 9 on the transmission disc 4101 to rotate and move to the inside of 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 integrated frame body 9 of the electric vehicle;

[0121] Before the clamping base plate 4114 clamps the magnesium alloy integrated frame body 9 of the electric vehicle, the telescopic cylinder 4116 is in the extended state, making the clamping base plate 4114 and the clamping frame 4110 in a vertical state. When the clamping frame 4110 moves to the inside of the magnesium alloy integrated frame body 9 of the electric vehicle, the telescopic cylinder 4116 is in the extended state, causing the clamping base plate 4114 to rotate along the assembly shaft frame 4113 to clamp and position the clamping base plate 4114 through the magnesium alloy integrated frame body 9 of the electric vehicle;

[0122] 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 can be adjusted adaptively according to the top position of the magnesium alloy integrated frame body 9 of the electric vehicle;

[0123] After the magnesium alloy integrated frame body 9 of the electric vehicle is fixed, the hydraulic cylinder 4107 lifts the magnesium alloy integrated frame body 9 of the electric vehicle from the transmission disc 4101, and the fifth servo motor 4118 is started. The fifth servo motor 4118 drives the adjustment lead screw 4106 to rotate. Through the adjustment lead screw 4106, the load-bearing screw block 4105 is screw-driven, so that the load-bearing screw block 4105 moves the magnesium alloy integrated frame body 9 of the electric vehicle along the adjustment lead screw 4106 inside the moving frame 4104 to the magnesium alloy integrated frame moving structure 3 of the electric vehicle;

[0124] The moving structure 3 of the magnesium alloy integrated frame of the electric vehicle fixes the bottom of the magnesium alloy integrated frame body 9 of the electric vehicle through two sets of adjusting frames 307. After the magnesium alloy integrated frame body 9 of the electric vehicle is placed on the adjusting frame 307, the pressing cylinder 310 clamps the clamping plate 311 on the magnesium alloy integrated frame body 9 of the electric vehicle;

[0125] The moving structure 3 of the magnesium alloy integrated frame of the electric vehicle moves on the circular track 2 through the driving structure 31;

[0126] The driving structure 31 starts the servo motor three 3108. After the servo motor three 3108 starts, it drives a single transmission rod 3105 to rotate. The two transmission rods 3105 move through the belt 3107 on the pulley 3106 to make them 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. Through the worm gear 3103, the driving wheel 3109 at the bottom of the driving rod 3102 rotates on both sides of the circular track 2. Through the rotating driving wheel 3109, the magnesium alloy integrated frame body 9 of the electric vehicle can move along the circular track 2 for automatic detection and processing;

[0127] In the moving structure 3 of the magnesium alloy integrated frame of the electric vehicle, the distance between the two assembly 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 assembly moving frames 303, so that the assembly moving frames 303 move in the inner side of the assembly groove 302 along the bidirectional screw one 304 to adjust the position, and the distance between the two assembly moving frames 303 can be adjusted;

[0128] In the moving structure 3 of the magnesium alloy integrated 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 spirally driven along the bidirectional screw two 308 inside the assembly moving frame 303 to adjust the distance between the two adjusting frames 307 for assembly processing of magnesium alloy integrated frame bodies 9 of different specifications;

[0129] When the magnesium alloy integrated vehicle frame 9 of the electric vehicle moves to the inside of the impact simulation box 601, after 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 of the magnesium alloy integrated vehicle frame 9 of the electric vehicle that needs to be subjected to impact detection. After the adjusting top plate 602 is adjusted, the first movable cylinder 609 is started, and the first movable cylinder 609 moves the toothed plate frame 608. Through the toothed 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 second movable cylinder 611 rises and starts, the second movable cylinder 611 raises the toothed plate frame 608, so that the toothed plate frame 608 pushes away from the engagement of the spur roller 607, and the impact swing arm 612 can be lowered. The impact head 617 impacts the magnesium alloy integrated vehicle frame 9 of the electric vehicle for an impact experiment;

[0130] 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 starts, it drives the vertical screw 613 to rotate. After the vertical screw 613 rotates, it performs a screw drive on the screw barrel 615, so that the screw barrel 615 moves along the vertical screw 613, and the extension frame 616 moves along the impact swing arm 612 to adjust the distance between the impact head 617 and the impact swing arm 612.

[0131] 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 protection scope 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. An inspection device for the quality of a magnesium alloy integrated frame of an electric vehicle, characterized in that, Including: An electric vehicle magnesium alloy integrated frame processing machine frame (1), on which a circulating track (2) connected end to end in a loop is fixedly installed; A number of electric vehicle magnesium alloy integrated frame moving structures (3) are movably arranged on the circulating track (2), and an electric vehicle magnesium alloy integrated frame body (9) is detachably installed on the moving structure (3); An automatic loading and unloading structure (4) for automatically loading and unloading the frame body (9) is assembled on the processing machine frame (1), and the loading and unloading structure (4) includes a transmission disc (4101) and a hydraulic cylinder (4107) for realizing automatic centering and clamping of the frame body; An impact detection structure (6) for detecting the drop impact of the frame body (9) is also installed on the processing machine frame (1); The impact detection structure (6) includes an impact simulation box (601) fixedly installed on the surface of the processing machine frame (1). An adjusting top disc (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 adjusting top disc (602). The external tooth ring (603) meshes with a spur gear (604), and the top of the spur gear (604) is connected to a third servo motor (605); An adjusting shaft rod (606) is rotatably installed inside the adjusting top disc (602), and a spur gear roller (607) is fixedly assembled on the outer wall of one end of the adjusting shaft rod (606). The spur gear roller (607) meshes with a toothed plate frame (608) movably arranged inside the adjusting top disc (602); A movable cylinder one (609) is assembled between the toothed plate frame (608) and the adjusting top disc (602); A movable plate (610) is horizontally movably assembled inside the toothed plate frame (608), and a movable cylinder two (611) is installed at the bottom end of the movable plate (610); The bottom end of the adjusting shaft rod (606) is integrally fixed with an impact swing arm (612). An extension frame (616) is movably arranged inside the impact swing arm (612). A screw barrel (615) that 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 bottom end of the extension frame (616) is fixedly installed with an impact head (617) at the center position of the impact simulation box (601), and an assembly rod (618) is integrally fixed at one end of the bottom end of the extension frame (616) away from the impact head (617). A number of counterweight blocks (619) are detachably installed on the outside of the assembly rod (618).

2. The quality inspection device for an integrated magnesium alloy frame of an electric vehicle according to claim 1, wherein, The electric vehicle magnesium alloy integrated frame moving structure (3) includes a moving frame plate (301). An assembly groove (302) is opened inside the moving frame plate (301), and a bidirectional screw rod one (304) is rotatably installed inside the assembly groove (302). One end of the bidirectional screw rod one (304) rotatably penetrates through the assembly groove (302) and is connected to a servo motor one (305) fixedly installed on the inner wall of the moving frame plate (301).

3. The quality inspection device for an integrated magnesium alloy frame of an electric vehicle according to claim 2, characterized in that, An assembly shifting frame (303) with a spiral drive sleeved outside the bidirectional screw rod one (304) is movably arranged inside the assembly groove (302). There are two assembly shifting frames (303) in total, and adjusting grooves (306) are formed inside both of the two assembly shifting frames (303). A bidirectional screw rod two (308) is rotatably installed inside the adjusting groove (306). One end of the bidirectional screw rod two (308) rotatably penetrates the inner wall of the adjusting groove (306) and is connected to a servo motor two (309) fixedly installed on the inner wall of the assembly shifting frame (303).

4. An electric vehicle magnesium alloy integrated frame quality detection device according to claim 3, characterized in that, An adjusting frame (307) with a spiral drive sleeved outside the bidirectional screw rod two (308) is movably arranged inside the adjusting groove (306). A pressing cylinder (310) is assembled at the top end of the adjusting frame (307), and a clamping plate (311) for clamping and fixing the electric vehicle magnesium alloy integrated vehicle frame body (9) on the adjusting frame (307) is installed at the output end of the pressing cylinder (310).

5. The quality inspection device for an integrated magnesium alloy frame of an electric vehicle according to claim 1, characterized in that, The electric vehicle magnesium alloy integrated vehicle frame moving structure (3) includes a driving structure (31) installed at the bottom of the shifting frame plate (301). The driving structure (31) includes a fixed frame (3101) fixedly arranged at the bottom of the shifting frame plate (301). Four driving rods (3102) are rotatably installed inside the fixed frame (3101). The bottom ends of the four driving rods (3102) all 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 gear (3104). The worm gear (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). Belts (3107) are 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 three (3108).

6. The quality inspection device for the magnesium alloy integrated frame of an electric vehicle according to claim 1, characterized in that, The electric vehicle magnesium alloy integrated vehicle frame loading and unloading structure (4) includes an assembly frame (401) fixedly installed on one side of the electric vehicle magnesium alloy integrated vehicle frame processing machine frame (1), and two electric vehicle magnesium alloy integrated vehicle frame loading and unloading components (41) for loading and unloading the electric vehicle magnesium alloy integrated vehicle frame body (9) are installed on the assembly frame (401). The electric vehicle magnesium alloy integrated vehicle frame loading and unloading component (41) includes a transmission disk (4101) rotatably installed on the assembly frame (401). The bottom end of the transmission disk (4101) is connected to a first servo motor (4102) fixedly installed inside the assembly frame (401). The electric vehicle magnesium alloy integrated vehicle frame loading and unloading component (41) includes an assembly frame (4103) fixedly installed on the electric vehicle magnesium alloy integrated vehicle frame processing machine frame (1).

7. The quality inspection device for an integrated magnesium alloy frame of an electric vehicle according to claim 6, characterized in that, A moving frame (4104) is fixedly installed at the top of the assembly frame (4103), and an adjusting lead screw (4106) is rotatably installed inside the moving frame (4104). One end of the adjusting lead screw (4106) is connected to a fifth servo motor (4118) fixedly installed on the inner wall of the moving frame (4104). A load-bearing screw block (4105) which is spirally driven and sleeved on the adjusting lead screw (4106) is movably arranged inside the moving frame (4104).

8. An electric vehicle magnesium alloy integrated frame quality detection device according to claim 7, characterized in that, A hydraulic cylinder (4107) is fixedly installed at the bottom of the load-bearing screw block (4105). The output end of the hydraulic cylinder (4107) is fixedly installed with a moving frame (4108). Load-bearing grooves (4109) are formed on both inner walls of the moving frame (4108). Two groups of clamping frames (4110) are movably arranged inside the load-bearing grooves (4109). A two-way lead screw (4111) which is spirally driven and rotatably arranged inside the moving frame (4108) is arranged on the inner wall of the clamping frame (4110). 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).

9. The quality inspection device for the magnesium alloy integrated frame of an electric vehicle according to claim 8, characterized in that, 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 cylinder (4116) is rotatably installed inside the first side shaft frame (4115). The top end of the telescopic cylinder (4116) is rotatably installed with a second side shaft frame (4117) fixedly installed on the outer wall of the clamping frame (4110).

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