Movable conductive test workbench

Abstract

The utility model belongs to the field of electromagnetic compatibility test, especially related to a movable conduction test workbench, including workbench body, moving wheel, limit stop, clamp plate and servo motor etc.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic compatibility testing, and in particular relates to a movable conductive testing workbench. Background Technology

[0002] With the continuous increase in the types of electronic and electrical equipment and the increasing complexity of the electromagnetic environment, conducted testing, as a core part of electromagnetic compatibility assessment, is increasingly becoming the focus of industry attention and optimization in terms of its testing efficiency, result repeatability, and adaptability to changing testing scenarios, directly affecting product development and certification processes.

[0003] Currently, conventional conducted tests often adopt a layout that separates the ground and the desktop. The interference generating equipment is placed directly on the laboratory floor, making it easy for people to accidentally bump or kick it when walking or operating it. The interference-affected equipment, on the other hand, relies on the laboratory table for placement. This results in the test location being limited to the area with the table, poor spatial adaptability, and inflexible deployment. In addition, the two types of equipment are connected by radio frequency cables, power cords, and control signal lines. The cables are laid on the ground, resulting in messy and disorderly wiring, and there are obvious tripping safety hazards, which directly affect the safety of the test process.

[0004] Therefore, a movable conduction test bench is particularly needed to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of conventional conductive testing layouts, such as the easy accidental collision or kicking of interference generating equipment, limited testing area, and messy cables dragging on the ground, this utility model provides a movable conductive testing workbench.

[0006] This utility model is achieved through the following technical means: a movable conductive test workbench, including a workbench body, moving wheels, a limiting plate, a clamping plate, a servo motor, a lead screw, a placement plate, a connecting plate, a fixing plate, an electric slide rail, an electric slider, and a controller. Moving wheels are installed at multiple corners of the bottom of the workbench body. The limiting plate is installed on the upper part of the workbench body. The clamping plate is slidably disposed on the upper part of the workbench body and located behind the limiting plate. The servo motor is installed on the upper part of the workbench body, and the limiting plate is located above the servo motor. The lead screw is fixed to the output shaft of the servo motor, passing through the lower part of the clamping plate and forming a threaded engagement with it. The placement plate is installed on the lower part of the workbench body. The connecting plate is installed on the top of the workbench body. The electric slide rail is installed below the connecting plate. Two electric sliders arranged side-by-side are slidably disposed on the electric slide rail. A fixing plate is installed on each electric slider, and the fixing plate forms a sliding engagement with the clamping plate. The controller is installed on the upper part of the connecting plate. The servo motor, the electric slide rail, and the electric slider are all electrically connected to the controller.

[0007] Preferably, the device also includes a connecting frame, suction cups, and an electric push rod. The electric push rod is installed on the lower part of the worktable body, and the placement plate is located above the electric push rod. The I-shaped connecting frame is fixed to the end of the piston rod of the electric push rod, and suction cups are installed on each of the multiple lateral ends of the connecting frame.

[0008] Preferably, a protective shell is also included. The protective shell is installed on the upper part of the worktable body, the front part of the servo motor passes through the protective shell, the bottom of the clamping plate forms a sliding contact with the protective shell, the protective shell covers the lead screw, and the end of the lead screw away from the servo motor forms a rotational engagement with the protective shell.

[0009] Preferably, a lighting lamp is also included, which is mounted on the upper part of the connection plate, located behind the controller, and electrically connected to the controller.

[0010] Preferably, the upper part of the limiting plate is provided with a row of spaced semi-circular grooves.

[0011] Preferably, the initial height of the suction cup bottom surface is higher than the height of the bottom surface of the moving wheel.

[0012] The beneficial effects of this utility model are: 1. By integrating the workbench body and the placement plate, the clamping area for the interfered equipment and the placement area for the interference-generating equipment are defined respectively, so that the two types of equipment can be compactly arranged on the same physical platform, avoiding the problems of accidental collisions and messy cables dragging on the ground caused by ground placement. At the same time, the bottom of the workbench body is equipped with casters, which can support rapid movement between different laboratories without relying on a fixed experimental table, shortening the test preparation time and improving the efficiency of test deployment and the flexibility of space use.

[0013] 2. By using the connecting frame, suction cup and electric push rod, the workbench body is fixed to the ground before the test begins, effectively preventing the workbench body from shifting due to personnel movement or equipment vibration during the test, and ensuring the stability of the equipment position. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the workbench body, moving wheels, and limiting plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the connecting frame, suction cup, and electric push rod of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the clamping plate, servo motor, and lead screw components of this utility model.

[0018] Figure 5 This is a partial sectional view of the workbench body component of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the fixing plate, electric slide rail, and electric slider components of this utility model.

[0020] Reference numerals in the attached diagram: 1. Workbench body, 2. Moving wheel, 3. Limiting plate, 4. Clamping plate, 5. Protective shell, 6. Servo motor, 7. Lead screw, 8. Placement plate, 9. Connecting plate, 10. Lighting lamp, 11. Fixing plate, 12. Electric slide rail, 13. Electric slider, 14. Connecting frame, 15. Suction cup, 16. Electric push rod, 17. Controller. Detailed Implementation

[0021] Example: A movable conduction testing workbench, such as Figures 1-6 As shown, the system includes a worktable body 1, casters 2, a limiting plate 3, a clamping plate 4, a protective shell 5, a servo motor 6, a lead screw 7, a placement plate 8, a connecting plate 9, a lighting lamp 10, a fixing plate 11, an electric slide rail 12, an electric slider 13, and a controller 17. Casters 2 are bolted to the four corners of the bottom of the worktable body 1. The limiting plate 3 is bolted to the upper part of the worktable body 1. The clamping plate 4 is slidably disposed on the upper part of the worktable body 1 and located behind the limiting plate 3. The servo motor 6 is bolted to the worktable body 1. At the top, the output shaft of the servo motor 6 extends horizontally backward. The limiting plate 3 is located above the servo motor 6. The upper part of the limiting plate 3 has a row of spaced semi-circular grooves. The semi-circular grooves are used to assist in organizing the RF cable, power line and control signal line during the wiring process to prevent the cable from getting tangled. The lead screw 7 is fixedly connected to the output shaft of the servo motor 6 through a coupling. The lead screw 7 passes through the lower part of the clamping plate 4 and forms a threaded engagement with it. The protective shell 5 is fixed to the upper part of the worktable body 1 by bolts. The front part of the servo motor 6 passes through the protective shell 5. The bottom of the clamping plate 4 is connected to the protective shell. 5 forms a sliding contact, the protective shell 5 covers the lead screw 7, and the rear end of the lead screw 7 away from the servo motor 6 forms a rotational engagement with the protective shell 5. The placement plate 8 is fixed to the lower part of the workbench body 1 by bolts, the connecting plate 9 is fixed to the top of the workbench body 1 by bolts, and the lighting lamp 10 is fixed to the upper part of the connecting plate 9 by bolts. The lighting lamp 10 can provide illumination for the interfered equipment during testing. The electric slide rail 12 is fixed to the lower part of the connecting plate 9 by bolts. Two electric sliders 13 are slidably arranged side by side on the electric slide rail 12. A fixing plate 11 is bolted to the electric slider 13, and the fixing plate 11 and the clamping plate 4 form a sliding fit. The controller 17 is bolted to the upper part of the connecting plate 9. The servo motor 6, the lighting lamp 10, the electric slide rail 12 and the electric slider 13 are all electrically connected to the controller 17. The controller 17 is a programmable logic controller, model Huichuan H3U-3232MT, which has multiple digital input and output functions, supports ladder diagram programming and automated sequential logic control, and can achieve stable electrical linkage control for various electrical components.

[0022] like Figure 3 and Figure 5 As shown, it also includes a connecting frame 14, a suction cup 15, and an electric push rod 16. The electric push rod 16 is fixed to the lower part of the worktable body 1 by bolts. The piston rod of the electric push rod 16 extends vertically downward. The placement plate 8 is located above the electric push rod 16. The I-shaped connecting frame 14 is fixedly connected to the end of the piston rod of the electric push rod 16. Each of the four lateral ends of the connecting frame 14 is fixed with a suction cup 15 by bolts. The initial height of the bottom surface of the suction cup 15 is higher than the height of the bottom surface of the moving wheel 2.

[0023] In use, the tester moves the workbench body 1 to the designated test area, then activates the electric push rod 16 via the controller 17, and controls its piston rod to extend, driving the connecting frame 14 downward until the suction cup 15 contacts and adheres to the ground, fixing the position of the workbench body 1. Next, the servo motor 6 is activated, causing its output shaft to drive the lead screw 7 to rotate clockwise, driving the clamping plate 4 to move backward. When the clamping plate 4 and the limiting plate 3 are pulled apart to their maximum distance, the servo motor 6 is turned off. Then, the interference generating device is placed on the placement plate 8, and the interference-affected device is placed between the limiting plate 3 and the clamping plate 4. The servo motor 6 is restarted, controlling its output shaft to rotate counterclockwise, driving the clamping plate 4 to move forward until the clamping plate 4 and the limiting plate 3 cooperate to clamp the interference-affected device from the front and back. The servo motor 6 is turned off, and then the electric slide rail 12 is activated, controlling the two electric sliders 13 to slide inward, driving the two fixing plates 11 to move synchronously, so that the two fixing plates 11 clamp the interference-affected device from the left and right directions, achieving four-way positioning and fixation. After completing the preparation operation, wiring can begin and conduction testing can be performed.

Claims

1. A movable conduction testing workbench, characterized in that, The system includes a worktable body (1), casters (2), a limiting plate (3), a clamping plate (4), a servo motor (6), a lead screw (7), a placement plate (8), a connecting plate (9), a fixing plate (11), an electric slide rail (12), an electric slider (13), and a controller (17). Casters (2) are installed at multiple corners of the bottom of the worktable body (1). The limiting plate (3) is installed on the upper part of the worktable body (1). The clamping plate (4) is slidably positioned on the upper part of the worktable body (1) and located behind the limiting plate (3). The servo motor (6) is installed on the upper part of the worktable body (1), and the limiting plate (3) is located above the servo motor (6). The lead screw (7) is fixed to the servo motor. On the output shaft of the machine (6), the lead screw (7) passes through the lower part of the clamping plate (4) and forms a threaded engagement with it. The placement plate (8) is installed on the lower part of the workbench body (1), the connecting plate (9) is installed on the top of the workbench body (1), the electric slide rail (12) is installed on the lower part of the connecting plate (9), and two electric sliders (13) are slidably arranged side by side on the electric slide rail (12). Each electric slider (13) is equipped with a fixing plate (11), and the fixing plate (11) forms a sliding engagement with the clamping plate (4). The controller (17) is installed on the upper part of the connecting plate (9), and the servo motor (6), the electric slide rail (12) and the electric slider (13) are all electrically connected to the controller (17).

2. The movable conduction testing workbench according to claim 1, characterized in that, It also includes a connecting frame (14), a suction cup (15) and an electric push rod (16). The electric push rod (16) is installed on the lower part of the workbench body (1), and the placement plate (8) is located above the electric push rod (16). The I-shaped connecting frame (14) is fixed to the end of the piston rod of the electric push rod (16), and each of the multiple transverse ends of the connecting frame (14) is equipped with a suction cup (15).

3. The movable conduction testing workbench according to claim 2, characterized in that, It also includes a protective shell (5), which is installed on the upper part of the workbench body (1). The front part of the servo motor (6) passes through the protective shell (5), and the bottom of the clamping plate (4) forms a sliding contact with the protective shell (5). The protective shell (5) covers the lead screw (7), and the end of the lead screw (7) away from the servo motor (6) forms a rotational engagement with the protective shell (5).

4. A movable conduction testing workbench according to claim 3, characterized in that, It also includes a lighting lamp (10), which is installed on the upper part of the connecting plate (9), and is located behind the controller (17) and electrically connected to the controller (17).

5. A movable conduction testing workbench according to claim 4, characterized in that, The upper part of the limiting plate (3) is provided with a row of semi-circular grooves spaced apart.

6. A movable conduction testing workbench according to claim 5, characterized in that, The initial height of the bottom surface of the suction cup (15) is higher than the height of the bottom surface of the moving wheel (2).

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