High-strength frame assembly welding method based on stress path optimization
Through the collaborative work of welding robots and stress monitoring equipment, the welding stress path is automatically monitored and optimized, which solves the problems of difficult stress monitoring and high labor consumption in traditional welding methods, and realizes an efficient and accurate welding process.
Patent Information
- Application Number
- CN202510794869.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-14
- Publication Date
- 2025-09-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional welding methods make it difficult to monitor the stress level at the welding position and the stress changes under simulated load conditions, resulting in difficulty in optimizing areas with high welding stress and high labor consumption.
Welding robots and stress monitoring equipment are used to work together. The beams are suspended by lifting equipment and automatically welded. The stress monitoring equipment monitors the stress conditions in real time, and the counterweight blocks are used to simulate load conditions to identify and optimize areas with higher stress.
The optimization of stress path in the automated welding process is achieved, which improves welding efficiency and accuracy and reduces manual labor consumption.
Smart Images
Figure CN120644892A_ABST
Abstract
Claims
1. A high-strength frame assembly welding method based on stress path optimization, characterized in that: The steps include: S1: Place two longitudinal beams vertically on the fixture (100); S2: placing a plurality of beams horizontally on the display rack (200); S3: The hoisting equipment (300) suspends the plurality of horizontal beams between the two longitudinal beams through the display rack (200); S4: The hoisting device (300) hoists the welding robot (400) to the outside of the beam; S5: The welding robot (400) symmetrically welds the two ends of the crossbeam to the longitudinal beam; S6: The welding robot (400) welds the second beam, and the stress monitoring device (500) monitors the stress of the beam after welding; S7: The hoisting device (300) lifts the stress monitoring device (500) so that both ends of the welded beam are subjected to the downward gravity of the frame assembly itself, and the stress monitoring device (500) monitors the stress of the beam under the load condition; S8: Hanging a counterweight (600) at the top of the longitudinal beam increases the pressure applied to both ends of the beam, causing tiny stress cracks at the welding position to appear; S9: The welding robot (400) welds the plurality of beams from top to bottom, and the stress monitoring device (500) monitors the stress conditions of the plurality of welded beams from top to bottom; S10: The fixture (100) releases the longitudinal beam and takes out the welded frame assembly.
2. The high-strength frame assembly welding method based on stress path optimization according to claim 1, characterized in that: The fixture (100) comprises a tray (110), a guide frame (120) is fixed on the top of the tray (110), and two clamping plates (130) are slidably connected inside the guide frame (120).
3. The high-strength frame assembly welding method based on stress path optimization according to claim 2, characterized in that: A screw rod (121) is rotatably connected to the guide frame (120) and is screwed to the clamping plate (130). A cushion block (131) is fixed to the clamping plate (130).
4. The high-strength frame assembly welding method based on stress path optimization according to claim 1, characterized in that: The lifting equipment (300) includes: A base plate (310), two brackets (320) are fixed on the top of the base plate (310), and two electric hoists (330) are fixed between the two brackets (320); The two guide rails (340) are both fixedly connected to the base plate (310), and the outer sides of the guide rails (340) are slidably engaged with a telescopic assembly (350).
5. The high-strength frame assembly welding method based on stress path optimization according to claim 4, characterized in that: A hook on the rope of one electric hoist (330) is used to suspend the welding robot (400), and a hook on the rope of another electric hoist (330) is used to suspend the stress monitoring device (500).
6. The high-strength frame assembly welding method based on stress path optimization according to claim 4, characterized in that: The telescopic assembly (350) comprises a square tube (351) slidably engaged with the guide rail (340), a slide rod (353) slidably connected to one end of the square tube (351), and the welding robot (400) and the stress monitoring device (500) are respectively fixedly connected to the slide rod (353) at corresponding positions.
7. The high-strength vehicle frame assembly welding method based on stress path optimization according to claim 1, characterized in that: The stress monitoring device (500) comprises: A carrier plate (510), a second support plate (511) capable of supporting a crossbeam being fixed on the outer side of the carrier plate (510); Two arc-shaped racks (520) are both slidably engaged with the carrier plate (510), and a detection component (521) is fixed to the bottom of the arc-shaped racks (520); The support base (530) is fixedly connected to the carrier plate (510), and a connecting shaft 1 is rotatably connected inside the support base (530), and both ends of the connecting shaft 1 are drivingly connected to a gearbox (540) fixed to the carrier plate (510).
8. The high-strength vehicle frame assembly welding method based on stress path optimization according to claim 7, characterized in that: A gear 1 (531) is fixed to the outside of the connecting shaft 1, and two racks 2 (560) are slidably connected to the inside of the carrier plate (510) and are respectively meshed with the gear 1 (531) at corresponding positions for transmission.
9. The high-strength vehicle frame assembly welding method based on stress path optimization according to claim 8, characterized in that: Two second cylinders (550) are embedded and fixed at the bottom of the carrier plate (510), and the display rack (200) includes a movable plate (210) fixed to the output end of the second cylinder (550).
10. The high-strength vehicle frame assembly welding method based on stress path optimization according to claim 9, characterized in that: The movable plate (210) is fixedly connected to the second rack (560), and a plurality of supporting plates (220) are fixed to one side of the movable plate (210).