In the realm of lamp and electrical appliance production, safety and reliability stand as non-negotiable pillars. Among the critical components influencing product performance, screw glands hold a key position, with their torque strength directly impacting overall functionality. To address the need for precise torque strength detection, screw glands torque test devices, particularly the PEGO PG-SGT model, have become essential tools. This article explores their standards, uses, principles, and structural features.

1. Adherence to Rigorous Standards

The very foundation of these test devices lies in their strict compliance with a set of prominent standards. They align with Clause 24.6 of GB2099.1-2008, Clause 4.12.5 of GB 7000.1-2015 (Luminaires – Part 1: General Requirements and Tests), IEC60598.1:4.12.5, and Clause 24.6 of IEC884-1. These standards are not mere guidelines; they clearly define the torque strength benchmarks that lamp screw glands must meet. By adhering to them, the devices ensure that products won’t pose safety risks due to subpar screw gland performance in real-world use.

2. Primary Function and Significance

The core purpose of these test devices is to assess the torque strength of screw glands in lamps and similar electrical appliances. They work by simulating the torque forces that these glands might encounter during actual operation. Through this simulation, they evaluate both the mechanical strength and the fixing reliability of the screw glands. For professional testing organizations and lamp manufacturers’ quality control departments alike, these devices are invaluable. They act as gatekeepers, helping businesses spot design or production flaws early on. In doing so, they prevent unqualified products from reaching the market and safeguard consumer safety.

3. Underlying Testing Mechanism

The testing principle is straightforward yet effective. It involves applying a specific torque to the screw gland and closely monitoring the condition of the gland and its connected parts. During testing, one end of the screw gland is secured, while the other end is rotated using a torque wrench. The torque applied is in line with the values specified in the relevant standards. The judgment of whether the gland meets the requirements hinges on its performance under this torque. If there’s no damage—such as stripped threads or cracks—the gland’s torque strength is deemed satisfactory. Any sign of damage indicates quality issues, prompting the need for design or production improvements.

4. Structural Composition and Key Traits

4.1 Core Structural Elements

- Frame and Columns: Typically constructed from imported aluminum alloy profiles, these components offer a winning combination of aesthetics and structural integrity. They provide stable support to the entire device, ensuring that no deformation occurs under force during testing, which could otherwise compromise result accuracy.

- Clamping and Positioning System: Employing a three-jaw chuck design, this system excels at adapting to lamps of various shapes and sizes. Its flexibility significantly boosts the device’s applicability, allowing it to securely hold both standard and uniquely structured lamps for precise torque testing.

- Testing Components: The devices come equipped with an array of stainless steel rods, including Ф5, Ф7, Ф9, Ф10, Ф12, Ф14, Ф16, Ф18, Ф20, Ф22, Ф25, Ф30, Ф32, and Ф40mm, each one being a single piece. They also feature weights of 20N, 40N, 50N, and 60N, one of each. These rods and weights can be combined to apply the exact torque needed for different lamp screw glands. Additionally, a 250mm diameter steel disc is included, serving as an auxiliary support and positioning tool during tests.

4.2 Notable Characteristics

- User-Friendly Manual Operation: The manual testing approach puts operators in direct control of the torque application process. This hands-on method allows for a more intuitive understanding of the test progress. Unlike complex automated systems, it eliminates the need for intricate programming and debugging, lowering the skill barrier. Even first-time users can become proficient after a brief training session.

- Versatile Application Range: Thanks to the three-jaw chuck clamping system and the diverse set of testing components, these devices can handle the torque testing needs of most lamp screw glands. Whether it’s a small household lamp or a large industrial lighting fixture, accurate torque strength assessments can be conducted. This versatility makes them highly valuable across lamp manufacturing facilities, quality inspection agencies, and related research institutions.

In conclusion, screw glands torque test apparatus are indispensable in ensuring the quality of lamps and similar electrical products. By strictly following established standards, leveraging a sound testing principle, boasting a well-designed structure, and offering user-friendly features, they efficiently and accurately gauge screw gland torque strength. In turn, they provide robust support for maintaining product quality and protecting consumer safety in the marketplace.