A body opening tool for opening a pair of opposing doors
Patent Information
- Application Number
- CN202522302921.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-10-30
AI Technical Summary
如果操作人员直接用手接触车门完成开启、关闭车门动作,会使已喷涂完毕的漆面破坏,造成质量问题,所以必须在车身喷涂时使用车门开启工装
本实用新型的定位销可与车身内后地板靠近尾门的预设孔位精准配合,和车身后地板配合的弹性限位片构成三点定位,与实现工装在车身内的快速定位。
Smart Images

Figure CN224865649U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle body painting technology, specifically to a tooling for opening a split tailgate on a vehicle body. Background Technology
[0002] In the painting process of automobile manufacturing, the car body needs to undergo multiple painting processes to achieve functions such as corrosion protection and aesthetics. As an important component of the car body, the condition control of the split tailgate directly affects the painting quality and work efficiency. During the painting stage, the car body is in a semi-finished state and has not yet installed original factory opening and closing components such as door locks and handles. The split tailgate must be kept in a stable and fixed state.
[0003] During the painting of the split tailgate, the outer door panel needs to be painted while the door is closed to ensure the distance between the robot's spray gun and the outer panel is within a safe and reasonable range, resulting in a smooth and even paint finish. Conversely, the inner door panel needs to be painted while the door is open to allow the robot or operator to reach irregularly shaped areas such as the door frame. If operators directly touch the door to open and close it, the painted surface will be damaged, causing quality issues. Therefore, a door opening fixture must be used during the body painting process.
[0004] Currently, some vehicle manufacturers design such tooling that is complicated to operate, seriously affecting the production cycle and reducing production efficiency; some car manufacturers design door opening tooling that is unstable and prone to falling off during use, which may cause more painting quality problems, and may even cause equipment damage when interfering with the equipment. Utility Model Content
[0005] In view of the above-mentioned shortcomings and deficiencies, this utility model provides a vehicle body split tailgate opening fixture, which can complete the opening and locking of the vehicle body split tailgate under manual operation according to specific process requirements, ensuring the stability of the door during vehicle body movement, without interfering with the equipment, without damaging the paint surface, and is convenient and quick to operate.
[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include: A tailgate opening fixture for a vehicle body includes a positioning unit, which is fixedly located on the rear floor of the vehicle body near the tailgate. A left half door opening and closing unit and a right half door opening and closing unit are fixedly mounted above the positioning unit by a support rod, which are used to manually open and close the left and right doors of the tailgate, respectively. A spring is provided between the left half door opening and closing unit and the right half door opening and closing unit.
[0007] The positioning frame is a trapezoidal frame. The two ends of the long side of the positioning frame are provided with positioning pins that mate with the holes on the rear floor of the vehicle body near the tailgate. The short side of the positioning frame is provided with elastic limiting pieces that mate with it. The two positioning pins and the elastic limiting pieces form a three-point limit.
[0008] A support rod is provided on the short side of the positioning frame, and a connecting plate is fixedly provided on the upper end of the support rod. The connecting plate is connected to the left half door opening and closing unit and the right half door opening and closing unit.
[0009] Both the left and right half-door opening and closing units are equipped with locking plates. The left and right half-door locking plates are respectively equipped with left and right half-door handles. The left and right half-door locking plates are located at both ends of the connecting plate and are rotatably connected to the connecting plate. A spring is connected between the two locking plates.
[0010] The left and right door locking plates are provided with slots on their opposite surfaces, and the lengths of the left and right door locking plates are set according to the positions of the left and right doors.
[0011] The left half of the door handle faces the long side of the positioning frame, and the right half of the door handle faces the short side of the positioning frame. The right half of the door handle has a bend according to the position of the bottom edge of the door, and the length of the right half of the door handle is sufficient to extend outside the door.
[0012] This utility model has the following beneficial effects and advantages: The positioning pin of this utility model can precisely match the preset hole position on the rear floor of the vehicle body near the tailgate, and form a three-point positioning with the elastic limiting piece that matches the rear floor of the vehicle body, so as to realize the rapid positioning of the tooling in the vehicle body.
[0013] This utility model's left and right half-door opening and closing units achieve independent control through a rotating locking plate and handle. The operator can control the opening and closing of the left tailgate from inside the vehicle body through the left half-door handle. The bending structure of the right half-door handle is adapted to the bottom edge of the door and is long enough to extend outside the vehicle. Even if the vehicle body is on the conveyor line, the operator can conveniently trigger the opening and closing from outside the vehicle without having to reach inside to operate. It is suitable for double-opening tailgates on vehicles without door locks during the painting stage.
[0014] The spring between the two locking plates of this utility model can automatically pull the locking plates to reset after the tailgate is closed, ensuring that the tailgate is tightly closed. This solves the core pain point of split tailgates in the painting stage, ensuring the safety and stability of vehicle body transfer and painting operations, while also improving operating efficiency and adaptability to multiple vehicle models. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the assembly of this utility model with the interior of the vehicle body; Figure 4 This is a schematic diagram showing the elastic limiting piece of this utility model in conjunction with the rear floor of the vehicle.
[0016] Among them, 1 is the positioning frame, 2 is the elastic limiting piece, 3 is the left half door handle, 4 is the left half door locking piece, 5 is the right half door handle, 6 is the right panel door locking piece, 7 is the spring, 8 is the positioning pin, 9 is the support rod, 10 is the connecting plate, 11 is the slot, 12 is the rear floor of the vehicle body, 13 is the left half door inner panel, and 14 is the right half door inner panel. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings. Figures 1-2 As shown, this utility model is a tooling for opening a split tailgate, including a positioning unit. The positioning unit is fixed on the rear floor 12 of the vehicle body near the tailgate. A left half door opening and closing unit and a right half door opening and closing unit are fixed above the positioning unit by a support rod 9. They are used to manually open and close the left and right doors of the split tailgate, respectively. A spring 7 is provided between the left half door opening and closing unit and the right half door opening and closing unit.
[0018] Furthermore, the positioning unit includes a positioning frame 1, which is a trapezoidal frame. The long side of the positioning frame 1 is provided with positioning pins 8 that mate with holes on the rear floor 12 of the vehicle body near the tailgate. The short side of the positioning frame 1 is provided with elastic limiting pieces 2 that mate with it. The two positioning pins 8 and the elastic limiting pieces 2 form a three-point limiting. The short side of the positioning frame 1 is provided with a support rod 9. The upper end of the support rod 9 is fixedly provided with a connecting plate 10. The connecting plate 10 is connected to the left half door opening and closing unit and the right half door opening and closing unit.
[0019] Furthermore, both the left and right half-door opening / closing units are equipped with locking plates. The left half-door locking plate 4 and the right half-door locking plate 6 are respectively equipped with a left half-door handle 3 and a right half-door handle 5. The left half-door locking plate 4 and the right half-door locking plate 6 are located at both ends of the connecting plate 10 and are rotatably connected to the connecting plate 10. A spring 7 is connected between the two locking plates. A slot 11 for fixing the door is provided on the opposite surfaces of the left half-door locking plate 4 and the right half-door locking plate 6, and the lengths of the left half-door locking plate 4 and the right half-door locking plate 6 are determined according to the positions of the left and right doors.
[0020] The left half door handle 3 faces the long side of the positioning frame 1, and the right half door handle 5 faces the short side of the positioning frame 1. The right half door handle 5 has a bend according to the position of the bottom edge of the door, and the length of the right half door handle 5 is sufficient to extend outside the door.
[0021] When using, such as Figures 3-4As shown, to perform a painting process on a rear door without a rear door handle, the door needs to be closed. The positioning pins 8 at both ends of the long side of the positioning frame 1 are inserted into the holes on the rear floor 12 of the vehicle body. The elastic limiting piece is then engaged with the rear floor, fixing the entire fixture to the rear floor. At this time, the left half door handle 3 faces inwards, and the right half door handle 5 is placed outwards. The operator inside the vehicle rotates the left half door handle 3 to engage the slot 11 of the left half door locking piece 4 with the inner panel 13 of the left half door, closing the left half door. The operator outside the door rotates the extended... The right half-door handle 5 extending outside the vehicle engages the slot 11 of the right half-door locking plate 6 with the inner panel 14 of the right half-door, thus closing and locking the tailgate. At this point, the rear of the vehicle can be painted. If the tailgate needs to be opened after the painting process is completed, the operator uses the same operation: first, rotate the right half-door handle 5 extending outside the vehicle to loosen the slot 11 of the right half-door locking plate 6 from the inner panel 14 of the right half-door, and then loosen the slot 11 of the left half-door locking plate 4 from the inner panel 13 of the left half-door. The tailgate is locked and opened without touching the paint on the vehicle body.
[0022] This utility model's left and right half-door opening and closing units achieve independent control through a rotating locking plate and handle. The operator can control the opening and closing of the left tailgate from inside the vehicle body through the left half-door handle. The bending structure of the right half-door handle is adapted to the bottom edge of the door and is long enough to extend outside the vehicle. Even if the vehicle body is on the conveyor line, the operator can conveniently trigger the opening and closing from outside the vehicle without having to reach inside to operate. It is suitable for double-opening tailgates on vehicles without door locks during the painting stage.
Claims
1. A tooling for opening a split tailgate, characterized in that, The system includes a positioning unit, which is fixedly located on the rear floor of the vehicle body near the tailgate. Above the positioning unit, a left half-door opening and closing unit and a right half-door opening and closing unit are fixedly installed via a support rod. These units are used to manually open and close the left and right doors of the split tailgate, respectively. A spring is provided between the left half-door opening and closing unit and the right half-door opening and closing unit.
2. The tailgate opening fixture according to claim 1, characterized in that: The positioning unit includes a positioning frame, which is a trapezoidal frame. The long side of the positioning frame is provided with positioning pins at both ends that mate with holes on the rear floor of the vehicle body near the tailgate. The short side of the positioning frame is provided with an elastic limiting piece that mates with the edge of the rear floor panel. The two positioning pins and the elastic limiting piece constitute a three-point limiting.
3. The tailgate opening fixture according to claim 2, characterized in that: A support rod is provided on the short side of the positioning frame, and a connecting plate is fixedly provided on the upper end of the support rod. The connecting plate is connected to the left half door opening and closing unit and the right half door opening and closing unit.
4. The tailgate opening fixture according to claim 3, characterized in that: Both the left and right half-door opening and closing units are equipped with locking plates. The left and right half-door locking plates are respectively equipped with left and right half-door handles. The left and right half-door locking plates are located at both ends of the connecting plate and are rotatably connected to the connecting plate. A spring is connected between the two locking plates.
5. The tailgate opening fixture according to claim 4, characterized in that: The left and right half door locking plates are provided with slots on their opposite surfaces, and the lengths of the left and right half door locking plates are set according to the positions of the left and right doors.
6. The tailgate opening fixture according to claim 4, characterized in that: The left half of the door handle faces the long side of the positioning frame, and the right half of the door handle faces the short side of the positioning frame. The right half of the door handle has a bend according to the position of the bottom edge of the door, and the length of the right half of the door handle is sufficient to extend outside the door.