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CN-121994417-A - Automatic detection tool for sealing weld tightness of battery box of booster bicycle

CN121994417ACN 121994417 ACN121994417 ACN 121994417ACN-121994417-A

Abstract

The invention relates to the technical field of battery box detection, in particular to an automatic detection tool for sealing weld joints of a battery box of a power-assisted bicycle, which comprises a sliding substrate, a bearing frame and a pretreatment frame, wherein the sliding substrate, the bearing frame and the pretreatment frame are connected with each other through support rods arranged at corners, a laminated plate is arranged in the bearing frame along the height direction, an automatic induction door is symmetrically hinged at the top of the bearing frame, a weld joint processing structure is arranged in the pretreatment frame, and a dynamic detection tool is arranged on the surface of the laminated plate.

Inventors

  • YANG JIANWEI
  • HOU GUODONG

Assignees

  • 昆山睿恩新机电有限公司

Dates

Publication Date
20260508
Application Date
20260209

Claims (8)

  1. 1. The automatic detection tool for the airtight weld joint of the battery box of the booster bicycle is characterized by comprising a sliding substrate (1), a bearing frame (2) and a pretreatment frame (3), wherein the sliding substrate, the bearing frame (2) and the pretreatment frame (3) are connected with each other through support rods arranged at corners, a laminated plate (4) is arranged in the bearing frame (2) along the height direction, an automatic induction door is symmetrically hinged to the top of the bearing frame (2), a weld joint treatment structure (5) is arranged in the pretreatment frame (3), and a dynamic detection tool (6) is arranged on the surface of the laminated plate (4).
  2. 2. The automatic detection tool for the sealing weld tightness of the battery box of the booster bicycle according to claim 1, wherein a vertical tooth roller (41) is penetrated and arranged at the center of the surface of the layering plate (4), a bearing plate (42) is fixedly arranged on the top surface of the vertical tooth roller (41), an air cylinder (43) is arranged between the bottom of the layering plate (4) and the sliding substrate (1), an auxiliary rotating tooth disc (44) is meshed with the bottom surface of the layering plate (4) at the adjacent position of the vertical tooth roller (41), and a driving motor I (45) is jointly arranged between the bottom of the auxiliary rotating tooth disc (44) and the upper surface of the sliding substrate (1).
  3. 3. The automatic detection tool for sealing weld tightness of the battery box of the power-assisted bicycle according to claim 1, wherein the weld treatment structure (5) comprises a positioning frame (51) fixedly installed inside a pretreatment frame (3), a movable supporting frame (52) is arranged at the center of the top of the positioning frame (51), a sliding block fixedly installed at the center of the bottom of the supporting frame (52) is in sliding fit with a sliding groove in the positioning frame (51), a long plate (53) is fixedly installed at the position, above one side of the positioning frame (51), in the pretreatment frame (3), a driving motor II (54) is arranged at the center of the top of the long plate (53), a rotary plate (541) is fixedly installed at the bottom of an output shaft of the driving motor II (54), and a round shaft, hinged to the end part of the rotary plate (541) away from the driving motor II (54), is in sliding fit with the inner groove of the supporting frame (52).
  4. 4. The automatic detection tool for the airtight weld tightness of the battery box of the power-assisted bicycle according to claim 3, wherein two ends of the supporting frame (52) are respectively and slidably sleeved with a limiting sleeve frame (55), the bottom of the limiting sleeve frame (55) is movably connected with a movable frame (56), each group of limiting sleeve frames (55) is fixedly provided with side baffles at the bottom end and at two sides of the movable frame (56), the two groups of movable frames (56) are respectively and slidably connected at two ends of the interior of the pretreatment frame (3), and one side of the inner wall of the movable frame (56) is longitudinally provided with a plurality of groups of racks.
  5. 5. The automatic detection tool for the airtight weld of the battery box of the power-assisted bicycle according to claim 4, wherein screw rods (57) are respectively and spirally penetrated at the rear end inside each group of movable frames (56), the screw threads of the two groups of screw rods (57) are opposite in screwing direction, two opposite ends are jointly provided with a double-shaft motor I (58), and the double-shaft motor I (58) is installed inside the positioning frame (51).
  6. 6. The automatic detection tool for the airtight weld tightness of the battery box of the booster bicycle according to claim 4, wherein a shaft lever is longitudinally arranged at the inner center of the limit sleeve frame (55) in a rotating manner, a middle section of the shaft lever penetrates through the movable frame (56) and is fixedly provided with a limit gear (59), the bottom of the shaft lever extends to the bottom of the movable frame (56) and is fixedly provided with a polishing vertical roller (510), a negative pressure dust collection assembly (511) is arranged at the position, adjacent to the polishing vertical roller (510), of the bottom of the limit sleeve frame (55), the negative pressure dust collection assembly (511) comprises a vacuum pump, a dust filtering tank and a dust collection bag, a negative pressure environment is formed in the pretreatment frame after the vacuum pump is started, metal dust and welding slag particles generated by polishing are timely sucked into the collection bag, and the dust filtering tank can prevent dust from flowing backwards.
  7. 7. The automatic detection tool for the airtight weld of the battery box of the power-assisted bicycle according to claim 1, wherein the dynamic detection tool (6) comprises an inclined guide groove which is arranged along four corners of the surface of the laminated plate (4), a vertical shaft (61) is longitudinally arranged in the inclined guide groove in a penetrating mode, an L-shaped sealing angle cover (62) is fixedly arranged at the top end of the vertical shaft (61), a mesh surface structure is arranged on the joint surface of the L-shaped sealing angle cover (62), the joint surface can be tightly jointed with a complex curved surface of the corner of the battery box, a gas detection cavity is formed in the L-shaped sealing angle cover (62), a miniature differential pressure type gas sensor is arranged in the L-shaped sealing angle cover, and a sensor probe faces the inside of the detection cavity.
  8. 8. The automatic detection tool for the airtight weld tightness of the battery box of the power-assisted bicycle according to claim 6, wherein two groups of vertical shafts (61) adjacent in the same row are sleeved with a transverse linkage frame (63) together, one ends of the front group and the rear group of the transverse linkage frames (63) are provided with guide rods (64) in a penetrating mode together, the other ends of the two opposite faces are fixedly provided with traction swing rods (65) respectively, inclined ring grooves are formed in the outer portions of the traction swing rods (65), the ends of the traction swing rods (65) far away from the transverse linkage frame (63) are movably sleeved with hollow rotary drums (66), sliding shafts arranged at the inner wall of the top of each hollow rotary drum (66) are in sliding fit with the inclined ring grooves, two double-shaft motors (67) are arranged between the front group and the rear group of the hollow rotary drums (66) together, and the tops of the two double-shaft motors (67) are fixedly connected with the bottom surface of the laminated plate (4).

Description

Automatic detection tool for sealing weld tightness of battery box of booster bicycle Technical Field The invention relates to the technical field of battery box detection, in particular to an automatic detection tool for the tightness of a sealing weld joint of a battery box of a booster bicycle. Background The battery box of the booster bicycle is used as a core component for protecting the battery pack, and the sealing performance of the battery box is directly related to the safety and the service life of the battery. The battery case is usually welded from metal or high-strength plastic, and the air tightness of the weld is a key index for evaluating the sealing performance of the battery case. If the weld joint has tiny pores or cracks, moisture and dust can invade and even cause potential safety hazards, so that hundred percent air tightness detection of the weld joint is an essential quality control link in the production process. At present, when the air tightness detection is carried out on the welding lines of the battery box type shell, a plurality of complex challenges are faced, on one hand, the welding lines of the battery boxes are various in shape, the welding line layout of the battery boxes with different specifications is different, and meanwhile, welding slag generated in the welding process can be attached to or blocked at microscopic holes of the welding lines, so that the air tightness detection is interfered. The existing detection method and tool have obvious limitations in practical application, the existing common water detection method needs subsequent drying and cannot be used for online automatic detection, the differential pressure method is difficult to accurately position leakage welding seams, the handheld detection efficiency is low, the manual influence is large, the semi-automatic detection mode cannot finish all welding seam detection of the battery box with the complex structure at one time, in addition, the existing detection tool is single in function and generally only has basic detection function, and the capability of carrying out standardized pretreatment (such as welding slag cleaning) on the surface of the welding seam before or during detection is lacking, so that sealing false images are easy to form, misjudgment is caused, and quality risks are brought. The technical defects are overcome, the detection efficiency, the detection precision and the working condition suitability of the weld joint of the battery box are improved as guidance, the corresponding improvement scheme is provided, the problems of inaccurate positioning, low efficiency, single tool function and high misjudgment rate of the existing detection method are solved, potential quality and potential safety hazards are avoided, and the production quality of the battery box of the power-assisted bicycle is guaranteed. Disclosure of Invention The invention aims to adopt an integrated process combining welding slag cleaning and air tightness detection, firstly perform standardized welding slag cleaning on welding seams of all battery boxes to be detected, eliminate false sealing interference caused by the blocking of holes by welding slag, and then perform high-precision air tightness detection through a detection structure to accurately judge whether the battery boxes meet the air tightness requirement or not, thereby ensuring the true and reliable detection results and ensuring the production quality of the battery boxes of the booster bicycle. The technical scheme includes that the automatic detection tool for the sealing weld tightness of the battery box of the power-assisted bicycle comprises a sliding substrate, a bearing frame and a pretreatment frame, wherein the sliding substrate, the bearing frame and the pretreatment frame are connected through support rods arranged at corners, a layered plate is arranged in the bearing frame along the height direction, an automatic induction door is symmetrically hinged to the top of the bearing frame, a weld treatment structure is arranged in the pretreatment frame, and a dynamic detection tool is arranged on the surface of the layered plate. Further, the center of the surface of the layering plate is provided with a vertical tooth roller in a penetrating mode, the top surface of the vertical tooth roller is fixedly provided with a supporting tray, an air cylinder is arranged between the bottom of the layering plate and the sliding substrate, the bottom surface of the layering plate is positioned at the adjacent position of the vertical tooth roller and is meshed with an auxiliary rotating fluted disc, and a first driving motor is arranged between the bottom of the auxiliary rotating fluted disc and the upper surface of the sliding substrate. Further, the welding seam processing structure comprises a positioning frame fixedly installed inside the pretreatment frame, a movable supporting frame is arranged at the center of the top of the positioning fram