New energy vehicle BDU hot riveting welding equipment
By designing a BDU hot riveting welding equipment that includes a work box and a three-axis displacement unit, automated welding of BDUs was achieved, solving the problem of operator safety risks in the existing technology and improving the safety and ease of operation of the welding process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- UPTON AUTOMATION SYST KUNSHAN CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-07
AI Technical Summary
Existing BDU welding processes pose safety risks to operators, and the heat and harmful gases generated by laser welding may cause danger.
Design a BDU hot riveting welding equipment that includes a work box, a double-speed chain conveyor platform, and a three-axis displacement unit. The three-axis displacement unit adjusts the position of the welding components to achieve automated welding and avoid direct manual contact.
It improves the safety and ease of operation of the welding process, reduces the risk of human contact, and ensures the stability and efficiency of the welding process.
Smart Images

Figure CN224463989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy vehicle technology, specifically to a hot riveting welding device for BDU of new energy vehicles. Background Technology
[0002] BDU stands for Battery Disconnection Unit, a common device in automotive electrical systems. BDU also refers to Battery Energy Distribution Unit, an important component in the high-voltage circuit of electric vehicles. The main function of BDU is to disconnect or connect the battery under specific circumstances, such as during vehicle repair, parts replacement, or other operations that may damage the electrical system, thereby effectively protecting the electronic equipment inside the vehicle and preventing damage caused by electric shock.
[0003] Battery disconnection unit welding is mostly done manually, with each unit positioned and welded individually. Laser welding generates a large amount of heat and harmful gases, which may pose certain risks to operators. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a hot riveting welding device for BDUs in new energy vehicles, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a hot riveting welding equipment for BDU of new energy vehicles, comprising: a working box and a double-speed chain conveyor platform, the double-speed chain conveyor platform being located inside the working box, a pallet lifting component being installed on the double-speed chain conveyor platform, and at least one welding station being provided inside the working box;
[0006] The welding station includes a fixed frame, on which a three-axis displacement unit is installed. A connecting plate is mounted on the three-axis displacement unit, and a welding assembly is installed at the bottom of the connecting plate. The welding assembly is located above the double-speed chain conveyor platform.
[0007] Preferably, the three-axis displacement unit includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component. The X-axis moving component is mounted on the moving end of the Y-axis electric cylinder servo, the Y-axis moving component is mounted on the moving end of the Z-axis moving component, the Z-axis electric cylinder servo is mounted on a fixed frame, and the welding component is mounted on the moving end of the X-axis electric cylinder servo.
[0008] The Z-axis movement assembly includes a Z-axis servo motor, the output shaft of which is equipped with a Z-axis lead screw, the Z-axis lead screw is mounted on a fixed frame, a Z-axis movement nut is mounted on the surface of the Z-axis lead screw, and a connecting plate is mounted on the surface of the Z-axis movement nut.
[0009] The Y-axis moving assembly includes a Y-axis linear motor, which is mounted on a connecting plate, and a connecting frame is mounted on the moving block of the Y-axis linear motor.
[0010] The X-axis moving assembly includes an X-axis servo motor, an X-axis lead screw mounted on the output shaft of the X-axis servo motor, the X-axis lead screw mounted on a connecting frame, an X-axis moving nut mounted on the surface of the X-axis lead screw, and a connecting plate mounted on the surface of the X-axis moving nut.
[0011] The X-axis servo motor is electrically connected to an X-axis servo controller, the Y-axis linear motor is electrically connected to a Y-axis motor controller, and the Z-axis servo motor is electrically connected to a Z-axis servo controller.
[0012] Preferably, the inner wall of the work box is equipped with a partition, and the main station module, multiple substation modules and welding gun controller are installed on the partition;
[0013] An air source processing element is installed on the partition plate. The air outlet of the air source processing element is connected to multiple solenoid valves. The pressing cylinder and the tray lifting cylinder are both connected to the air source processing element through solenoid valves.
[0014] The X-axis servo controller, Y-axis motor controller, and Z-axis servo controller are all mounted on the partition.
[0015] Preferably, the welding assembly includes a clamping cylinder and a welding gun. The clamping cylinder is installed at the bottom of the connecting plate, and a mounting plate is provided at the telescopic end of the clamping cylinder. The welding gun is connected to the mounting plate.
[0016] Preferably, a force sensor is mounted on the mounting plate, the force sensor is communicatively connected to a sensor amplifier, and a detection camera is mounted on the connecting bracket.
[0017] Preferably, the double-speed chain conveyor platform is provided with a pallet buffer platform, a workpiece in-situ photoelectric transmitter is provided on one side of the double-speed chain conveyor platform, a workpiece in-situ photoelectric receiver is provided on the other side of the double-speed chain conveyor platform, and a pallet in-situ proximity switch and a pallet information read / write head are provided on the double-speed chain conveyor platform.
[0018] Preferably, the pallet lifting assembly includes a mounting frame, which is mounted on a double-speed chain conveyor platform. A pallet lifting cylinder is mounted on the mounting frame, and a lifting plate is mounted on the telescopic end of the pallet lifting cylinder. A pallet stopping cylinder is provided on the lifting plate, and the pallet stopping cylinder is connected to an air source processing element through a solenoid valve.
[0019] Preferably, the surface of the work box is equipped with a start / reset / emergency stop button, a touch screen, and a display screen; the front of the work box has a front safety door; and the back of the work box has a rear safety door.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] This new energy vehicle BDU hot riveting welding equipment uses a work box, a double-speed chain conveyor platform, a fixed frame, a three-axis displacement unit, and welding components to transport the workpiece into the work box. The three-axis displacement unit adjusts the position of the welding components for welding. It is easy to operate and does not require direct contact by operators, thus improving the safety of the welding process. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a top view of the structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the three-axis displacement unit structure of this utility model;
[0025] Figure 4 This is a schematic diagram of the welding assembly structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the gas source processing element of this utility model;
[0027] Figure 6 This is a schematic diagram of the structure of the X-axis servo controller, Y-axis motor controller and Z-axis servo controller of this utility model;
[0028] Figure 7 This is a schematic diagram of the double-speed chain conveyor support structure of this utility model.
[0029] In the diagram: 1. Work box; 2. Double-speed chain conveyor platform; 3. Pallet lifting assembly; 31. Mounting frame; 32. Pallet lifting cylinder; 33. Lifting plate; 34. Pallet stop cylinder; 4. Fixing frame; 5. Three-axis displacement unit; 511. Z-axis servo motor; 512. Z-axis lead screw; 513. Z-axis moving nut; 514. Connecting plate; 521. Y-axis linear motor; 522. Connecting frame; 531. X-axis servo motor; 532. X-axis lead screw; 533. X-axis moving nut; 54. X-axis servo controller; 55. Y-axis motor controller; 56. Z-axis servo controller; 6. Connecting plate; 7. 71. Welding assembly; 72. Clamping cylinder; 73. Welding gun; 74. Mounting plate; 8. Partition plate; 9. Main station module; 10. Substation module; 11. Welding gun controller; 12. Gas source processing element; 13. Solenoid valve; 14. Force sensor; 15. Sensor amplifier; 16. Detection camera; 17. Pallet buffer platform; 18. Workpiece in-situ photoelectric transmitter; 19. Workpiece in-situ photoelectric receiver; 20. Pallet in-situ proximity switch; 21. Pallet information reader / writer; 22. Start, reset, and emergency stop button; 23. Touch screen; 24. Display screen; 25. Front safety door; 26. Rear safety door. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figure 1-7 A hot riveting welding equipment for BDU of new energy vehicles includes: a working box 1 and a double-speed chain conveyor platform 2. The double-speed chain conveyor platform 2 is located inside the working box 1. A pallet lifting component 3 is installed on the double-speed chain conveyor platform 2. At least one welding station is set inside the working box 1.
[0032] The welding station includes a fixed frame 4, a three-axis displacement unit 5 is installed on the fixed frame 4, a connecting plate 6 is installed on the three-axis displacement unit 5, a welding assembly 7 is installed at the bottom of the connecting plate 6, and the welding assembly 7 is located above the double-speed chain conveyor platform 2.
[0033] The three-axis displacement unit 5 includes an X-axis moving component, a Y-axis moving component, and a Z-axis moving component. The X-axis moving component is installed on the moving end of the Y-axis electric cylinder servo, the Y-axis moving component is installed on the moving end of the Z-axis moving component, the Z-axis electric cylinder servo is installed on the fixed frame 4, and the welding component 7 is installed on the moving end of the X-axis electric cylinder servo.
[0034] The Z-axis movement assembly includes a Z-axis servo motor 511, a Z-axis lead screw 512 mounted on the output shaft of the Z-axis servo motor 511, the Z-axis lead screw 512 mounted on the fixed frame 4, a Z-axis moving nut 513 mounted on the surface of the Z-axis lead screw 512, and a connecting plate 514 mounted on the surface of the Z-axis moving nut 513.
[0035] The Y-axis moving assembly includes a Y-axis linear motor 521, which is mounted on a connecting plate 514. A connecting bracket 522 is mounted on the moving block of the Y-axis linear motor 521.
[0036] The X-axis moving assembly includes an X-axis servo motor 531, an X-axis lead screw 532 is mounted on the output shaft of the X-axis servo motor 531, the X-axis lead screw 532 is mounted on the connecting frame 522, an X-axis moving nut 533 is mounted on the surface of the X-axis lead screw 532, and a connecting plate 6 is mounted on the surface of the X-axis moving nut 533.
[0037] The X-axis servo motor 531 is electrically connected to the X-axis servo controller 54, the Y-axis linear motor 521 is electrically connected to the Y-axis motor controller 55, and the Z-axis servo motor 511 is electrically connected to the Z-axis servo controller 56.
[0038] The inner wall of the work box 1 is equipped with a partition 8, and the main station module 9, multiple sub-station modules 10 and welding gun 72 controller are installed on the partition 8.
[0039] An air source processing element 12 is installed on the partition 8. The air outlet of the air source processing element 12 is connected to multiple solenoid valves 13. The pressing cylinder 71 and the tray lifting cylinder 32 are both connected to the air source processing element 12 through the solenoid valves 13.
[0040] The X-axis servo controller 54, the Y-axis motor controller 55, and the Z-axis servo controller 56 are all mounted on the partition 8.
[0041] The welding assembly 7 includes a clamping cylinder 71 and a welding gun 72. The clamping cylinder 71 is installed at the bottom of the connecting plate 6. The telescopic end of the clamping cylinder 71 is provided with a mounting plate 73, and the welding gun 72 is connected to the mounting plate 73.
[0042] A force sensor 14 is mounted on the mounting plate 73. The force sensor 14 is connected to a sensor amplifier 15 via communication. A detection camera 16 is mounted on the connecting bracket 522.
[0043] The double-speed chain conveyor platform 2 is equipped with a pallet buffer platform 17, a workpiece in-situ photoelectric transmitter 18 is provided on one side of the double-speed chain conveyor platform 2, a workpiece in-situ photoelectric transmitter receiver 19 is provided on the other side of the double-speed chain conveyor platform 2, and a pallet in-situ proximity switch 20 and a pallet information reader / writer 21 are provided on the double-speed chain conveyor platform 2.
[0044] The pallet lifting assembly 3 includes a mounting frame 31, which is mounted on the double-speed chain conveyor platform 2. A pallet lifting cylinder 32 is mounted on the mounting frame 31. A lifting plate 33 is mounted on the telescopic end of the pallet lifting cylinder 32. A pallet stopping cylinder 34 is provided on the lifting plate 33. The pallet stopping cylinder 34 is connected to the air source processing element 12 through a solenoid valve 13.
[0045] The surface of the work box 1 is equipped with a start / reset / emergency stop button 22, a touch screen 23 and a display screen 24. The front of the work box 1 is provided with a front safety door 25 and the back of the work box 1 is provided with a rear safety door 26.
[0046] The pallet proximity switch 20 detects that the workpiece pallet is in place. The pallet stop cylinder 34 stops the workpiece pallet. The pallet information read / write head 21 reads the pallet information. The workpiece in place photoelectric transmitter 18 and the workpiece in place photoelectric receiver 19 detect that the workpiece is in place. The detection camera 16 detects the position of the rivet on the PCB board and feeds the position feedback to the welding gun 72. The three-axis displacement unit 5 drives the welding gun 72 to move above the welding position. The telescopic end of the clamping cylinder 71 extends and presses down the welding gun 72 to perform welding.
[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hot riveting welding device for BDU of a new energy vehicle, characterized in that, include: The work box (1) and the double-speed chain conveyor platform (2) are located inside the work box (1). The double-speed chain conveyor platform (2) is equipped with a pallet lifting assembly (3). At least one welding station is set inside the work box (1). The welding station includes a fixed frame (4), on which a three-axis displacement unit (5) is provided, and a connecting plate (6) is installed on the three-axis displacement unit (5). A welding assembly (7) is installed at the bottom of the connecting plate (6), and the welding assembly (7) is located above the double-speed chain conveyor platform (2).
2. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 1, characterized in that, The three-axis displacement unit (5) includes an X-axis moving component, a Y-axis moving component and a Z-axis moving component. The X-axis moving component is installed on the moving end of the Y-axis electric cylinder servo, the Y-axis moving component is installed on the moving end of the Z-axis moving component, the Z-axis electric cylinder servo is installed on the fixed frame (4), and the welding component (7) is installed on the moving end of the X-axis electric cylinder servo. The Z-axis moving assembly includes a Z-axis servo motor (511), the output shaft of which is equipped with a Z-axis lead screw (512), the Z-axis lead screw (512) is mounted on a fixed frame (4), a Z-axis moving nut (513) is mounted on the surface of the Z-axis lead screw (512), and a connecting plate (514) is mounted on the surface of the Z-axis moving nut (513). The Y-axis moving assembly includes a Y-axis linear motor (521), which is mounted on a connecting plate (514), and a connecting frame (522) is mounted on the moving block of the Y-axis linear motor (521). The X-axis moving assembly includes an X-axis servo motor (531), the output shaft of which is equipped with an X-axis lead screw (532), the X-axis lead screw (532) is mounted on a connecting frame (522), and an X-axis moving nut (533) is mounted on the surface of the X-axis lead screw (532). The connecting plate (6) is mounted on the surface of the X-axis moving nut (533). The X-axis servo motor (531) is electrically connected to the X-axis servo controller (54), the Y-axis linear motor (521) is electrically connected to the Y-axis motor controller (55), and the Z-axis servo motor (511) is electrically connected to the Z-axis servo controller (56).
3. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 2, characterized in that, The inner wall of the work box (1) is equipped with a partition (8), and the main station module (9), multiple sub-station modules (10) and welding gun (72) controller are installed on the partition (8); A gas source processing element (12) is installed on the partition (8). The outlet end of the gas source processing element (12) is connected to multiple solenoid valves (13). The pressing cylinder (71) and the tray lifting cylinder (32) are both connected to the gas source processing element (12) through the solenoid valves (13). The X-axis servo controller (54), Y-axis motor controller (55) and Z-axis servo controller (56) are all mounted on the partition (8).
4. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 3, characterized in that, The welding assembly (7) includes a clamping cylinder (71) and a welding gun (72). The clamping cylinder (71) is installed at the bottom of the connecting plate (6). The telescopic end of the clamping cylinder (71) is provided with a mounting plate (73). The welding gun (72) is connected to the mounting plate (73).
5. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 4, characterized in that, A force sensor (14) is mounted on the mounting plate (73), and the force sensor (14) is communicatively connected to a sensor amplifier (15). A detection camera (16) is mounted on the connecting frame (522).
6. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 1, characterized in that, The double-speed chain conveyor platform (2) is provided with a tray buffer platform (17), a workpiece in-situ photoelectric transmitter (18) is provided on one side of the double-speed chain conveyor platform (2), a workpiece in-situ photoelectric receiver (19) is provided on the other side of the double-speed chain conveyor platform (2), and a tray in-situ proximity switch (20) and a tray information read / write head (21) are provided on the double-speed chain conveyor platform (2).
7. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 3, characterized in that, The pallet lifting assembly (3) includes a mounting frame (31), which is mounted on the double-speed chain conveyor platform (2). A pallet lifting cylinder (32) is mounted on the mounting frame (31). A lifting plate (33) is mounted on the telescopic end of the pallet lifting cylinder (32). A pallet stopping cylinder (34) is provided on the lifting plate (33). The pallet stopping cylinder (34) is connected to the air source processing element (12) through a solenoid valve (13).
8. The hot riveting welding equipment for BDU of a new energy vehicle according to claim 1, characterized in that, The surface of the work box (1) is equipped with a start reset emergency stop button (22), a touch screen (23) and a display screen (24). The front of the work box (1) is provided with a front safety door (25), and the back of the work box (1) is provided with a rear safety door (26).