Rapid detection device for front door outer plate waist line reinforcing plate welding assembly

Abstract

The utility model belongs to the technical field of automobile part detection, and particularly relates to a rapid detection device for a front door outer plate waist line reinforcing plate welding assembly, which is characterized in that a detection platform profiling groove is matched with the contour of the welding assembly, manual position adjustment is avoided, operation time is reduced, part deformation is prevented, and a plurality of groups of synchronous detection rods vertically penetrate through the platform. All components such as punching hole sites and welding points can be jacked and detected at a time, time loss caused by step-by-step detection is eliminated, an audible and visual alarm unit is directly associated with a detection rod, an unqualified result is displayed in real time, manual observation of scattered indicator lamps is replaced, missing detection is eradicated, the detection time of a single piece is shortened to the second level from several minutes, and the detection efficiency is improved. Meanwhile, soft parts are protected through the rigid profiling grooves, and full-process rapid judgment is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts testing technology, specifically relating to a rapid testing device for the welding assembly of the front door outer panel waistline reinforcement plate. Background Technology

[0002] In the automotive parts manufacturing industry, the quality inspection of the front door outer panel waistline reinforcement plate welding assembly is a key link in ensuring the structural strength of the door. This assembly consists of densely stamped holes and multiple sets of welded components. Traditional manual inspection requires operators to check the integrity of dozens of holes and welded components one by one. Due to the large size and soft material of the parts, manual flipping and inspection can easily lead to deformation. Moreover, visual inspection has blind spots, resulting in a high risk of missed inspections. More importantly, the inspection of a single part can take several minutes, which seriously restricts the production line cycle time. Although some companies have introduced automated probe equipment, it can only perform hole sampling inspection and welded component verification step by step. Multiple positioning and item inspections result in limited efficiency improvement and cannot meet the production line's need for rapid judgment throughout the entire process.

[0003] Current testing technologies have several problems: existing devices lack a dedicated quick-locking mechanism, requiring operators to repeatedly adjust the part position to align the testing rod with the hole. Furthermore, testing results rely on operators observing scattered indicator lights, making it impossible to provide immediate audible and visual warnings for defective products, resulting in problematic parts being stuck on the production line. Although existing technologies have attempted to improve accuracy through sensor integration, the complex closed-loop logic design actually increases operational complexity and fails to fundamentally solve the problem of slow testing pace. Therefore, a rapid testing device integrating quick positioning, synchronous detection, and immediate alarm for the front door outer panel waistline reinforcement plate welding assembly is proposed. Utility Model Content

[0004] To address the problems in the traditional testing methods described above, which rely on manual visual inspection and step-by-step operations, resulting in low testing efficiency, easy deformation of parts, and high risk of missed inspections in the welding assembly of the front door outer panel waistline reinforcement plate, and the inability of existing automated equipment to achieve rapid and synchronous judgment throughout the entire process, this utility model provides a rapid testing device for the welding assembly of the front door outer panel waistline reinforcement plate.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A rapid inspection device for the welded assembly of the waistline reinforcement plate of a front door outer panel includes an inspection platform, a rapid positioning mechanism for instantly locking the components on the reinforcement plate, synchronous inspection rods, and an audible and visual alarm unit. The surface of the inspection platform is provided with a contour groove matching the outline of the welded assembly. Multiple sets of synchronous inspection rods are provided, which vertically penetrate the inspection platform and are disposed within it. The audible and visual alarm unit is communicatively connected to the multiple sets of synchronous inspection rods. The multiple sets of synchronous inspection rods complete the inspection of all components at once. The audible and visual alarm unit is used to display the unqualified inspection results.

[0007] Furthermore, the rapid positioning mechanism includes several magnetic fasteners and guide pins. The magnetic fasteners are respectively disposed on the four corner areas of the contour groove of the detection platform. The magnetic fasteners form a rectangular positioning frame. The guide pins are located at the center of the long side of the contour groove and are spaced apart from the magnetic fasteners.

[0008] Furthermore, the magnetic fastener is connected to the detection platform via an embedded stud, and the magnetic fastener can extend and retract vertically.

[0009] Furthermore, the bottom of the multiple sets of synchronous detection rods is connected to a pneumatic lifting component, and the multiple sets of synchronous detection rods are lifted synchronously through the pneumatic lifting component.

[0010] Furthermore, the guide pin is fixed to the surface of the detection platform through the base slot, and the guide pin is inclined at an angle of 80°-85° with the detection platform.

[0011] Furthermore, the guide pin surface is provided with a low-friction coating, and the pin diameter of the guide pin is clearance-fitted with the process hole of the component on the reinforcing plate.

[0012] Furthermore, the low-friction coating is a solid lubricating coating, the bottom layer of which is a micro-arc oxidation layer on the surface of an anodized aluminum substrate with a thickness of 5μm-8μm, and the top layer of which is a polytetrafluoroethylene composite coating with a thickness of 10μm-15μm.

[0013] The beneficial effects of this utility model are as follows:

[0014] By integrating a rapid positioning mechanism, synchronous detection rods, and an audible and visual alarm unit, the system effectively solves the problems associated with traditional inspection methods that rely on manual visual inspection and step-by-step operations. Through the matching of the contour grooves on the inspection platform surface with the welded assembly outline, and the vertical penetration of multiple sets of synchronous detection rods, rapid and synchronous inspection of the front door outer panel waistline reinforcement plate welded assembly is achieved. This avoids the risks of part deformation and missed inspections, improves inspection efficiency, and ensures the accuracy of inspection results.

[0015] This invention significantly improves testing speed and automation, reduces manual intervention, and minimizes errors caused by manual operation. It can complete the testing of all components in a short time, avoiding time delays and the risk of part deformation in step-by-step operations. In addition, the instant feedback from the audible and visual alarm unit can quickly display unqualified test results, facilitating timely adjustments. Overall, the solution proposed in this application improves production efficiency and product quality, reduces production costs, and brings significant technological progress to the automotive manufacturing industry. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the rapid detection device of this utility model;

[0018] Figure 2 This is a schematic diagram showing the installation position of the synchronous detection rod of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Detection platform; 2. Rapid positioning mechanism; 3. Synchronous detection rod; 4. Audible and visual alarm unit. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] like Figure 1 - Figure 2 As shown, this utility model discloses a rapid testing device for the welded assembly of the front door outer panel waistline reinforcement plate. It includes a testing platform 1, a rapid positioning mechanism 2 for instantly locking the components on the reinforcement plate, synchronous testing rods 3, and an audible and visual alarm unit 4. The surface of the testing platform 1 is provided with a contour groove matching the outline of the welded assembly. Multiple sets of synchronous testing rods 3 are provided, each set vertically penetrating the testing platform 1 and positioned within it. The audible and visual alarm unit 4 is communicatively connected to the multiple sets of synchronous testing rods 3. The multiple sets of synchronous testing rods 3 complete the testing of all components at once. The audible and visual alarm unit 4 is used to display the results of any non-conforming tests.

[0023] In the automotive parts manufacturing industry, the quality inspection of the front door outer panel waistline reinforcement plate welding assembly faces numerous challenges. Traditional manual inspection is inefficient, prone to causing part deformation, and carries a high risk of missed inspections. While automated probe equipment has improved efficiency, its gains are limited. To address these issues, this embodiment utilizes a conformal groove on the inspection platform 1 to match the contour of the welding assembly, eliminating the need for manual position adjustments, reducing operation time, and preventing part deformation. Multiple sets of synchronous inspection rods 3 vertically penetrate the platform, allowing for simultaneous lifting and inspection of all components, such as stamping holes and welding points, eliminating the time loss associated with step-by-step inspection. An audible and visual alarm unit 4 directly... The associated detection rods display non-conforming results in real time, replacing manual observation of scattered indicator lights, eliminating missed inspections, and reducing the inspection time for a single part from several minutes to seconds. At the same time, the rigid contour groove protects soft parts, enabling rapid judgment throughout the entire process. Each set of detection rods has a built-in micro switch, and all switches are connected in parallel to the PLC. If all detection rods are fully inserted into the corresponding hole / weld joint (micro switch closed), the PLC has no output; if any detection rod is not in place (switch open), the PLC immediately outputs a signal to the audible and visual alarm unit 4. If the red light is constantly on and accompanied by a buzzer, it indicates that the hole position is off and the detection rod is not inserted. If the red light flashes, it indicates that the weld joint is faulty.

[0024] While the aforementioned contour groove provides contour positioning, slight misalignment during inspection of the welded assembly can still cause the inspection rod and hole to malfunction, especially for large parts that are susceptible to inertia. To address this issue, in one embodiment, the rapid positioning mechanism 2 includes several magnetic fasteners and guide pins. The magnetic fasteners are respectively positioned at the four corners of the contour groove on the inspection platform 1, forming a rectangular positioning frame. The guide pins are located at the center of the long side of the contour groove and are spaced apart from the magnetic fasteners.

[0025] A rectangular frame is formed by four corner magnetic fasteners, which use magnetic force to instantly attract and fix the four corners of the parts, thus counteracting external disturbances. The long side center guide pin is arranged at intervals with the magnetic components and inserted into the process holes of the parts to achieve secondary positioning, ensuring that the hole system is strictly aligned with the detection rod. The dual positioning allows the parts to be placed with "zero adjustment", improving the repeatability of the detection, and the magnetic adsorption avoids damaging soft materials.

[0026] Following the above embodiments, if the height of the magnetic fastener is fixed, it is difficult to adapt to the thickness tolerance of different batches of parts. For example, local height differences caused by weld protrusions may result in insecure locking or excessive compression deformation. To further solve this problem, in one embodiment, the magnetic fastener is connected to the detection platform 1 through an embedded stud. The magnetic fastener can extend and retract vertically. The connection through the embedded stud allows the magnetic fastener to extend and retract vertically, achieving automatic fitting to the surface undulations of the part. The magnetic force is adaptively adjusted according to the contact surface, ensuring locking force while avoiding local stress concentration, thus eliminating the risk of detection failure due to tolerance.

[0027] Furthermore, if the multiple sets of detection rods in the above embodiments are driven independently, asynchronous lifting may cause some detection points to trigger alarms before they are in place, or uneven force may aggravate the deformation of parts. In this regard, in one embodiment, the bottom of the multiple sets of synchronous detection rods 3 is connected to a pneumatic lifting component, which is a cylinder. The multiple sets of synchronous detection rods 3 achieve synchronous lifting of multiple rods through the pneumatic lifting component. The pneumatic lifting component controls all detection rods through a unified air circuit to ensure that the multiple rods are rigidly and synchronously lifted, thereby eliminating false alarms and protecting the structural integrity of the parts and the accuracy of lifting synchronization.

[0028] It should be noted that if the guide pin is set vertically, the operator needs to accurately align it with the process hole, which results in low placement efficiency and easy scratching of the hole wall. Therefore, in one embodiment, the guide pin is fixed to the surface of the detection platform 1 by the base slot. The guide pin is inclined at an angle of 80°-85° with the detection platform 1. By limiting the 80°–85° inclination angle, the guide pin is made to have an acute angle guiding structure. The base slot fixes the angle, and the part slides naturally into the positioning point along the inclined surface, thereby reducing the placement accuracy requirement, reducing the operation time, and the inclined insertion avoids hard contact between the pin and the hole wall.

[0029] Following the above embodiments, frequent insertion and removal of the tilting guide pin will exacerbate wear, especially since aluminum parts are prone to generating metal shavings, leading to decreased positioning accuracy and scratches on the parts. To avoid this problem, in one embodiment, a low-friction coating is provided on the surface of the guide pin. The pin diameter of the guide pin is clearance-fitted with the process hole of the component on the reinforcing plate. The low-friction coating is a solid lubricating coating. The bottom layer of the solid lubricating coating is a micro-arc oxidation layer on the surface of anodized aluminum substrate with a thickness of 5μm-8μm, and the top layer of the solid lubricating coating is a polytetrafluoroethylene composite coating with a thickness of 10μm-15μm. The solid lubricating coating is constructed in two layers. The bottom micro-arc oxidation layer with a thickness of 5μm-8μm improves the hardness and wear resistance of the aluminum substrate, and the top composite coating with a thickness of 10μm-15μm provides self-lubrication. The clearance-fitting between the pin diameter and the process hole further reduces the contact area, improves the life of the guide pin, and completely eliminates the risk of scratches on the parts, reducing the maintenance cycle.

[0030] The working process and working principle of this utility model:

[0031] The front door outer panel waistline reinforcement plate welding assembly is placed into the contour groove of the inspection platform 1. The contour is automatically matched and positioned. The four corner magnetic fasteners instantly attract the four corners of the part to form a rectangular positioning frame. The inclined guide pin at the center of the long side is inserted into the process hole of the part to achieve secondary positioning. The pneumatic lifting component drives multiple sets of synchronous inspection rods 3 to rigidly lift and inspect all stamping holes and welding points at one time. If all components are qualified, the device does not respond. If there are unqualified items, the audible and visual alarm unit 4 will immediately trigger the red light to flash and the buzzer to sound an alarm. The pneumatic lifting component retracts the inspection rods and removes the part to complete the inspection.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rapid detection device for a front door outer panel beltline reinforcement panel weld assembly, characterized by, The device includes a testing platform, a quick positioning mechanism for instantly locking components on a reinforcing plate, synchronous testing rods, and an audible and visual alarm unit. The testing platform has contoured grooves on its surface that match the contour of the welded assembly. Multiple sets of synchronous testing rods are provided, each set vertically penetrating the testing platform and positioned within it. The audible and visual alarm unit is communicatively connected to the multiple sets of synchronous testing rods. The multiple sets of synchronous testing rods complete the testing of all components at once. The audible and visual alarm unit is used to display the results of any non-conforming tests.

2. A quick detection device for a front door outer panel beltline reinforcement panel welding assembly as set forth in claim 1, wherein, The rapid positioning mechanism includes several magnetic fasteners and guide pins. The magnetic fasteners are respectively set on the four corner areas of the contour groove of the detection platform. The magnetic fasteners form a rectangular positioning frame. The guide pins are located at the center of the long side of the contour groove and are spaced apart from the magnetic fasteners.

3. The quick detection device of a front door outer plate waist line reinforcing plate welding assembly according to claim 2, characterized in that, The magnetic fastener is connected to the detection platform via an embedded stud, and the magnetic fastener can extend and retract vertically.

4. The quick detection device of a front door outer panel waist line reinforcing plate welding assembly according to claim 1, characterized in that, The bottom of the multiple sets of synchronous detection rods is connected to a pneumatic lifting component, and the multiple sets of synchronous detection rods are lifted synchronously through the pneumatic lifting component.

5. The quick detection device of a front door outer panel beltline reinforcement panel welding assembly of claim 2, wherein, The guide pin is fixed to the surface of the detection platform through the base slot, and the guide pin is inclined at an angle of 80°-85° with the detection platform.

6. A quick detection device for a front door outer panel beltline reinforcement panel welding assembly as defined in claim 2, wherein, The guide pin surface is provided with a low-friction coating, and the pin diameter of the guide pin is clearance-fitted with the process hole of the component on the reinforcing plate.

7. A quick detection device for a front door outer panel beltline reinforcement panel welding assembly as defined in claim 6, wherein, The low-friction coating is a solid lubricating coating. The bottom layer of the solid lubricating coating is a micro-arc oxidation layer on the surface of an anodized aluminum substrate with a thickness of 5μm-8μm, and the top layer of the solid lubricating coating is a polytetrafluoroethylene composite coating with a thickness of 10μm-15μm.

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