A testing table for testing steel structure related products
By designing a combination of support frame, inspection table body and hardness testing components, and using stepper motor to drive ball screw, the problem of bulky Rockwell hardness testing device was solved, realizing automated hardness testing of steel structure products and improving testing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 淄博市检验检测计量研究总院
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-24
AI Technical Summary
Existing Rockwell hardness testing devices are bulky, difficult to move, have low testing efficiency, and are easily affected by human factors, making it difficult to achieve rapid and accurate on-site testing.
An inspection table was designed, comprising a support frame, an inspection table body, an inspection equipment mounting bracket, and a hardness testing component. A stepper motor drives a ball screw and guide rail to achieve automated movement of the hardness tester. Combined with a high-strength steel structure and adjustable feet, the stability and accuracy of the test are ensured.
It enables automated hardness testing of steel structure products, improving testing efficiency and accuracy, ensuring the stability of test results and the flexibility of the equipment, and facilitating maintenance and updates.
Smart Images

Figure CN224552976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inspection technology, and in particular to an inspection table for inspecting steel structure-related products. Background Technology
[0002] Hardness testing of steel structure-related products is an important testing step to measure their material properties and evaluate their quality and applicability.
[0003] Leeb hardness test: Based on GB / T17394.1-2014 "Metallic materials - Leeb hardness test - Part 1: Test method", an impactor of specified mass is used to impact the surface of steel under the action of spring force, and the hardness value is calculated by measuring the rebound speed. It is simple, fast, and suitable for large-area on-site testing of large steel structures and components that are difficult to move. During testing, the steel surface must be clean and rust-free, and the test should be conducted away from strong winds and vibrations.
[0004] Brinell hardness test: This method measures the hardness value by measuring the depth to which a hardened steel ball or cemented carbide ball is indented into the metal surface under a specific load. It is suitable for medium-hardness steels. While this method provides accurate and repeatable results, it is complex to perform and not suitable for rapid on-site testing.
[0005] Rockwell hardness test: This method uses a diamond cone or hardened steel ball as an indenter to measure the depth to which it penetrates the surface under a certain load to determine hardness. It is mostly used for high-hardness steels. It is fast and easy to operate, but it requires high surface quality and is not suitable for rough surfaces.
[0006] Currently, the Rockwell hardness test has several drawbacks when used for structural product inspection: the testing device is bulky and difficult to move; it requires manual handling during testing, resulting in low efficiency and the test results are easily affected by human factors.
[0007] To address the aforementioned issues, this utility model proposes an inspection table for inspecting steel structure-related products. Utility Model Content
[0008] In order to solve the problems existing in the prior art, this utility model provides an inspection table for inspecting steel structure related products.
[0009] The technical solution adopted by this utility model to solve its technical problem is: An inspection bench for inspecting steel structure-related products includes a support frame 1, an inspection bench body 2, an inspection equipment mounting frame 3, and a hardness testing component 4. The inspection bench body 2 is bolted to the top of the support frame 1, the inspection equipment mounting frame 3 is bolted to the top of the inspection bench body 2, and the hardness testing component 4 is bolted to the top of the inspection equipment mounting frame 3. The hardness testing component 4 includes a mounting plate 401 mounted on an inspection equipment mounting beam 301. A stepper motor 402 is mounted on the top of the mounting plate 401 via a motor mounting bracket. A ball screw 403 is keyed to the bottom of the stepper motor 402. Guide rails 404 are provided on both sides of the ball screw 403. A sliding nut seat 405 is slidably mounted on the outer side of the guide rails 404. The nut of the ball screw 403 is fixedly connected to the sliding nut seat 405. A hardness tester 406 is mounted on the upper part of the sliding nut seat 405. The hardness testing needle 407 of the hardness tester 406 penetrates the sliding nut seat 405 and extends vertically downwards.
[0010] This utility model also has the following additional technical features: As a further specific optimization of the technical solution of this utility model: the support frame 1 is made of high-strength steel structure and connected to each other by bolts. The support frame 1 includes four horizontally arranged long crossbeams 101 and four horizontally arranged short crossbeams 102. The two upper long crossbeams 101 and two short crossbeams 102 form a U-shape, and the two lower long crossbeams 101 and two short crossbeams 102 also form a U-shape. The support frame 1 also includes four vertically arranged support beams 103. The top of the support beams 103 is fixed to the outside of the upper U-shaped steel structure, and the bottom of the support beams 103 is fixed to the outside of the lower U-shaped steel structure. The support frame 1 also includes four sets of adjustable feet 104. The adjustable feet 104 are distributed at the bottom of the four support beams 103 and are used to adjust the levelness of the inspection table.
[0011] As a further specific optimization of the technical solution of this utility model: the inspection table body 2 is a flat steel plate, the bottom of the inspection table body 2 is bolted to the top of the support frame 1, and the top of the inspection table body 2 is bolted to the inspection equipment mounting frame 3.
[0012] As a further specific optimization of the technical solution of this utility model: the inspection equipment mounting frame 3 is generally n-shaped, including a horizontally arranged inspection equipment mounting beam 301 and two vertically arranged inspection equipment mounting beams 302, and a hardness detection component 4 is provided on the inspection equipment mounting beam 301.
[0013] Compared with the prior art, the advantages of this utility model are: This utility model features a rationally designed inspection table structure. Through the coordinated use of the support frame, the inspection table body, the inspection equipment mounting bracket, and the hardness testing component, automated hardness testing of steel structure-related products is achieved, significantly improving testing efficiency and accuracy. The hardness testing component utilizes a stepper motor to drive a ball screw, along with a guide rail and sliding nut seat, enabling precise movement of the hardness tester and ensuring the stability of the test results. Simultaneously, the support frame employs a high-strength steel structure and features adjustable legs to ensure the stability and durability of the inspection table. Furthermore, the design of the inspection equipment mounting bracket facilitates the installation and disassembly of the hardness testing component, simplifying equipment maintenance and upgrades. In conclusion, this utility model's inspection table for steel structure-related products possesses advantages such as simple structure, convenient operation, high testing efficiency, and good accuracy, and has broad application prospects. Attached Figure Description
[0014] Figure 1 This is a schematic diagram illustrating the structure of this utility model. Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention; Figure 4 This is a schematic diagram of the hardness testing component 4 of this utility model; Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Inspection table body; 3. Inspection equipment mounting frame; and 4. Hardness testing components. Detailed Implementation
[0015] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.
[0016] An inspection table for inspecting steel structure-related products includes a support frame 1, an inspection table body 2, an inspection equipment mounting frame 3, and a hardness testing component 4. The inspection table body 2 is bolted to the top of the support frame 1, the inspection equipment mounting frame 3 is bolted to the top of the inspection table body 2, and the hardness testing component 4 is bolted to the top of the inspection equipment mounting frame 3. All components—support frame 1, inspection table body 2, inspection equipment mounting frame 3, and hardness testing component 4—are bolted together, allowing for easy disassembly and replacement, thus improving the flexibility and practicality of the inspection table.
[0017] The support frame 1 is made of high-strength steel structure and is connected to each other by bolts. The support frame 1 includes four horizontally arranged long crossbeams 101 and four horizontally arranged short crossbeams 102. The two upper long crossbeams 101 and two short crossbeams 102 form a U-shape, and the two lower long crossbeams 101 and two short crossbeams 102 also form a U-shape. The support frame 1 also includes four vertically arranged support beams 103. The top of the support beams 103 is fixed to the outside of the upper U-shaped steel structure, and the bottom of the support beams 103 is fixed to the outside of the lower U-shaped steel structure. The support frame 1 also includes four sets of adjustable feet 104. The adjustable feet 104 are distributed at the bottom of the four support beams 103 and are used to adjust the levelness of the inspection table.
[0018] The support frame 1 enhances overall stability and load-bearing capacity, ensuring safety during the inspection process. The use of high-strength steel gives the support frame 1 high strength and rigidity, enabling it to withstand large loads and resist deformation or damage. Furthermore, the bolted connection allows for easy assembly and disassembly, improving the flexibility and maintainability of the inspection table. In addition, the design of four adjustable legs 104 allows for convenient adjustment of the inspection table's level, ensuring accuracy and reliability during the inspection process.
[0019] The inspection table body 2 is a flat steel plate. The bottom of the inspection table body 2 is bolted to the top of the support frame 1, and the top of the inspection table body 2 is bolted to the inspection equipment mounting bracket 3. The inspection table body 2 is a robust and durable structure with high strength and rigidity, capable of withstanding large loads and is not easily deformed or damaged. It can withstand various forces and vibrations generated during the inspection process, ensuring the accuracy and stability of the inspection. Its flat design allows the inspection equipment to be placed stably on it, avoiding errors caused by unevenness. At the same time, the inspection table body 2 is provided with several threaded holes, hollow holes, or positioning holes, facilitating the placement of steel structure products of different shapes on the inspection table body 2 for inspection and testing.
[0020] The testing equipment mounting frame 3 is shaped like an "n," comprising a horizontally positioned crossbeam 301 and two vertically positioned vertical beams 302. The hardness testing component 4 is mounted on the crossbeam 301. The "n"-shaped structure of the mounting frame 3 provides sufficient strength and rigidity to withstand the weight of the hardness testing component 4, as well as various forces and vibrations generated during the testing process, ensuring the accuracy and stability of the testing. Furthermore, the crossbeam 301 and the vertical beams 302 are connected by bolts, allowing for easy disassembly and replacement, thus improving the flexibility and maintainability of the testing platform.
[0021] The hardness testing component 4 includes a mounting plate 401 installed on the testing equipment mounting beam 301. A stepper motor 402 is mounted on the top of the mounting plate 401 via a motor mounting bracket. A ball screw 403 is keyed to the bottom of the stepper motor 402. Guide rails 404 are respectively provided on both sides of the ball screw 403. A sliding nut seat 405 is slidably installed on the outer side of the guide rail 404. The nut of the ball screw 403 is fixedly connected to the sliding nut seat 405. A hardness tester 406 is installed on the upper part of the sliding nut seat 405. The hardness testing needle 407 of the hardness tester 406 passes through the sliding nut seat 405 and extends vertically downward.
[0022] Motion description of ball screw 403: When the ball screw is the driving body, the nut will be converted into linear motion according to the lead of the corresponding specification as the screw rotates. The driven workpiece can be connected to the nut seat and the nut to achieve the corresponding linear motion.
[0023] The working principle of the hardness testing component 4 is as follows: after the stepper motor 402 is started, it drives the ball screw 403 to rotate, and the nut moves linearly. Since the nut of the ball screw 403 is fixedly connected to the sliding nut seat 405, the sliding nut seat 405 will move linearly along the guide rail 404. As the sliding nut seat 405 moves, the hardness tester 406 and its hardness testing needle 407 will also move up and down accordingly, thereby realizing the hardness testing of steel structure related products.
[0024] Meanwhile, to prevent the sliding nut seat 405 from sliding up and down after the stepper motor 402 stops, several limiting holes 408 are provided on the two guide rails 404, and limiting posts 409 that cooperate with the limiting holes 408 are also configured. When the stepper motor 402 stops, inserting the limiting post 409 into the nearest limiting hole 408 at the top of the sliding nut seat 405 can prevent the sliding nut seat 405 from sliding up and down when the hardness tester 406 is testing hardness. This design makes the hardness testing process more accurate and stable, improving the accuracy and efficiency of the test.
[0025] It should be noted that the hardness tester 406 of the hardness testing component 4 is not limited to a specific model. As long as the hardness tester 406 uses a diamond cone or a quenched steel ball as an indenter to measure the depth of its indentation into the surface under a certain load to determine the hardness, it can be operated using the installation method of this utility model.
[0026] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
Claims
1. An inspection bench for inspecting steel structure-related products, characterized in that: The device includes a support frame (1), an inspection table body (2), an inspection equipment mounting bracket (3), and a hardness testing component (4). The inspection table body (2) is bolted to the top of the support frame (1), the inspection equipment mounting bracket (3) is bolted to the top of the inspection table body (2), and the hardness testing component (4) is bolted to the top of the inspection equipment mounting bracket (3). The hardness testing component (4) includes a mounting plate (401) mounted on the inspection equipment mounting beam (301), and the top of the mounting plate (401) is secured by a motor mounting bracket. A stepper motor (402) is installed, and a ball screw (403) is keyed to the bottom of the stepper motor (402). Guide rails (404) are respectively provided on both sides of the ball screw (403). A sliding nut seat (405) is slidably installed on the outer side of the guide rail (404). The nut of the ball screw (403) is fixedly connected to the sliding nut seat (405). A hardness tester (406) is installed on the upper part of the sliding nut seat (405). The hardness test needle (407) of the hardness tester (406) passes through the sliding nut seat (405) and extends vertically downward.
2. The inspection bench for inspecting steel structure-related products according to claim 1, characterized in that: The support frame (1) is made of high-strength steel structure and is connected to each other by bolts. The support frame (1) includes four horizontally arranged long beams (101) and four horizontally arranged short beams (102). The upper two long beams (101) and two short beams (102) form a square shape, and the lower two long beams (101) and two short beams (102) form a square shape. The support frame (1) also includes four vertically arranged support beams (103). The top of the support beams (103) is fixed to the outside of the upper square-shaped steel structure, and the bottom of the support beams (103) is fixed to the outside of the lower square-shaped steel structure. The support frame (1) also includes four sets of adjustable legs (104). The adjustable legs (104) are distributed at the bottom of the four support beams (103) and are used to adjust the level of the inspection table.
3. The inspection bench for inspecting steel structure-related products according to claim 1, characterized in that: The inspection table body (2) is a flat steel plate. The bottom of the inspection table body (2) is bolted to the top of the support frame (1). The top of the inspection table body (2) is bolted to the inspection equipment mounting bracket (3).
4. The inspection bench for inspecting steel structure-related products according to claim 1, characterized in that: The inspection equipment mounting frame (3) is n-shaped as a whole, including a horizontally arranged inspection equipment mounting beam (301) and two vertically arranged inspection equipment mounting beams (302). The inspection equipment mounting beam (301) is equipped with a hardness testing component (4).