Vibration testing device of PLC (Programmable Logic Controller)

Abstract

The utility model provides a vibration testing device for a PLC (Programmable Logic Controller), which comprises a vibration table, the vibration table comprises a table top, a clamp base is fixed on the table top, a plurality of clamping frames are arranged on the clamp base in a sliding fit manner, lower pressing plates are arranged in the clamping frames in a sliding fit manner, and a plurality of first fixing bolts are arranged on the clamping frames; a plurality of second fixing bolts are arranged between the clamping frame and the lower pressing plate, a plurality of rotating shafts are arranged in the clamp base in a rotating fit mode, and limiting structures are arranged on the rotating shafts. According to the utility model, the clamp base is arranged on the table top, the clamping frame is arranged on the clamp base, the lower pressing plate is arranged in the clamping frame, the PLC can be clamped and fixed through the clamping frame and the lower pressing plate, the rotating shaft is arranged in the clamp base, and the limiting structure is arranged on the rotating shaft, so that the clamping frame can be limited in an auxiliary manner; therefore, the clamping effect of the clamping frame is guaranteed, and it is guaranteed that the PLC and the clamp base are relatively static.

Description

Technical Field

[0001] This utility model relates to the field of vibration testing technology, specifically to a vibration testing device for a PLC controller. Background Technology

[0002] After production, PLC controllers need to undergo vibration testing. Existing vibration devices require clamping and fixing the PLC controller during testing, usually using a threaded structure. However, during vibration testing, the vibration table causes the clamping and fixing structure to vibrate, which can easily lead to loosening of the threaded structure. This results in unstable clamping of the PLC controller, affecting the vibration test of the PLC controller and also affecting the service life of the clamping and fixing structure, thus impacting the test results.

[0003] Therefore, this utility model provides a vibration testing device for a PLC controller. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a vibration testing device for PLC controllers, thereby solving the problems mentioned in the background section. This invention can clamp and fix the PLC controller using a clamping frame and a lower pressure plate; it can also assist in limiting the clamping frame, thereby ensuring the clamping effect of the clamping frame and ensuring that the PLC controller and the fixture base remain relatively stationary.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a vibration testing device for a PLC controller, comprising a vibration table, the vibration table including a table surface, a fixture base fixed on the table surface, a plurality of clamping frames slidably fitted on the fixture base, a lower pressure plate slidably fitted inside the clamping frames, a plurality of first fixing bolts installed on the clamping frames, a plurality of second fixing bolts installed between the clamping frames and the lower pressure plate, and a plurality of rotating shafts rotatably fitted inside the fixture base, with limiting structures installed on the rotating shafts.

[0006] Furthermore, the fixture base is provided with multiple sliding grooves, which correspond to the clamping frame, and the rotating shaft is located inside the sliding grooves.

[0007] Furthermore, the clamping frame has a first through groove, which is slidably connected to the lower pressure plate. The lower pressure plate has a groove on its side, which corresponds to the clamping frame.

[0008] Furthermore, the second fixing bolt is threaded into the lower pressure plate and contacts the clamping frame.

[0009] Furthermore, the clamping frame is threadedly engaged with the first fixing bolt, and the first fixing bolt contacts the clamp base.

[0010] Furthermore, a second through groove is provided inside the clamping frame, and the second through groove corresponds to the rotating shaft.

[0011] Furthermore, the limiting structure includes a nut, which is threaded into the shaft and contacts the clamping frame.

[0012] Furthermore, a PLC controller is placed on the fixture base, and the PLC controller is located between multiple clamping frames.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a vibration testing device for a PLC controller, which includes a table; a fixture base; a clamping frame; a lower pressure plate; a PLC controller; a rotating shaft; and a limiting structure.

[0014] A fixture base is installed on the table, a clamping frame is installed on the fixture base, and a pressure plate is installed inside the clamping frame. The PLC controller can be clamped and fixed by the clamping frame and the pressure plate. A rotating shaft is installed inside the fixture base, and a limiting structure is installed on the rotating shaft to help limit the clamping frame, thereby ensuring the clamping effect of the clamping frame and ensuring that the PLC controller and the fixture base are relatively stationary. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of a vibration testing device for a PLC controller according to the present invention.

[0016] Figure 2 This is a schematic diagram of the assembly three-dimensional structure of the fixture base and clamping frame in a vibration testing device for a PLC controller according to this utility model.

[0017] Figure 3 This is a schematic diagram of the assembly structure of the fixture base and rotating shaft in a vibration testing device for a PLC controller according to this utility model.

[0018] Figure 4 This is a schematic diagram of the assembly cross-sectional structure of the fixture base and clamping frame in a vibration testing device for a PLC controller according to this utility model.

[0019] In the diagram: 1. Vibration table; 2. Table surface; 3. Fixture base; 4. Slide groove; 5. Rotating shaft; 6. Nut; 7. Second through groove; 8. Clamping frame; 9. First through groove; 10. Lower pressure plate; 11. Groove; 12. First fixing bolt; 13. Second fixing bolt; 14. PLC controller. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 4This utility model provides a technical solution: a vibration testing device for a PLC controller, including a vibration table 1. The vibration table 1 includes a table surface 2. A clamp base 3 is fixed on the table surface 2. Multiple clamping frames 8 are slidably fitted on the clamp base 3. A lower pressure plate 10 is slidably fitted inside the clamping frame 8. Multiple first fixing bolts 12 are installed on the clamping frame 8. Multiple second fixing bolts 13 are installed between the clamping frame 8 and the lower pressure plate 10. Multiple rotating shafts 5 are rotatably fitted inside the clamp base 3. A limiting structure is installed on the rotating shaft 5.

[0022] In this embodiment, the fixture base 3 is provided with multiple sliding grooves 4, which correspond to the clamping frame 8. The rotating shaft 5 is located in the sliding groove 4. The clamping frame 8 is provided with a first through groove 9, which is slidably connected to the lower pressure plate 10. The side of the lower pressure plate 10 is provided with a groove 11, which corresponds to the clamping frame 8. The second fixing bolt 13 is threadedly engaged with the lower pressure plate 10 and contacts the clamping frame 8. The clamping frame 8 is threadedly engaged with the first fixing bolt 12, which contacts the fixture base 3.

[0023] Specifically, the PLC controller 14 can be placed on the fixture base 3, and then the sliding clamping frame 8 and the lower pressure plate 10 can be used to clamp the PLC controller 14. Then, the first fixing bolt 12 and the second fixing bolt 13 can be rotated to fix the sliding clamping frame 8 and the lower pressure plate 10, thereby fixing the PLC controller 14.

[0024] The clamping frame 8 has a second through groove 7, which corresponds to the rotating shaft 5. The limiting structure includes a nut 6, which is threadedly engaged with the rotating shaft 5 and contacts the clamping frame 8. A PLC controller 14 is placed on the fixture base 3, and the PLC controller 14 is located among multiple clamping frames 8.

[0025] Specifically, the rotating shaft 5 can be manually fixed, and then the nut 6 can be rotated so that the nut 6 contacts the clamping frame 8, thereby limiting the clamping frame 8. When vibration occurs, the nut 6 can rotate relative to the rotating shaft 5, so that the nut 6 and the rotating shaft 5 remain relatively stationary, that is, the position of the nut 6 remains unchanged, thereby ensuring the limiting of the clamping frame 8, so that the clamping frame 8 can have a better clamping effect on the PLC controller 14.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vibration testing device for a PLC controller, comprising a vibration table (1), characterized in that, The vibration table (1) includes a table surface (2), a clamp base (3) is fixed on the table surface (2), a plurality of clamping frames (8) are slidably fitted on the clamp base (3), a lower pressure plate (10) is slidably fitted inside the clamping frame (8), a plurality of first fixing bolts (12) are installed on the clamping frame (8), a plurality of second fixing bolts (13) are installed between the clamping frame (8) and the lower pressure plate (10), a plurality of rotating shafts (5) are rotatably fitted inside the clamp base (3), and a limiting structure is installed on the rotating shaft (5).

2. The vibration testing device for a PLC controller according to claim 1, characterized in that: The clamp base (3) is provided with multiple sliding grooves (4), which correspond to the clamping frame (8), and the rotating shaft (5) is located in the sliding groove (4).

3. The vibration testing device for a PLC controller according to claim 1, characterized in that: The clamping frame (8) has a first through groove (9) inside, which is slidably connected to the lower pressure plate (10). The side of the lower pressure plate (10) has a groove (11) which corresponds to the clamping frame (8).

4. The vibration testing device for a PLC controller according to claim 1, characterized in that: The second fixing bolt (13) is threadedly engaged with the lower pressure plate (10), and the second fixing bolt (13) is in contact with the clamping frame (8).

5. The vibration testing device for a PLC controller according to claim 1, characterized in that: The clamping frame (8) is threadedly engaged with the first fixing bolt (12), and the first fixing bolt (12) is in contact with the clamp base (3).

6. The vibration testing device for a PLC controller according to claim 1, characterized in that: The clamping frame (8) has a second through groove (7) which corresponds to the rotating shaft (5).

7. The vibration testing device for a PLC controller according to claim 1, characterized in that: The limiting structure includes a nut (6), which is threadedly engaged with the rotating shaft (5) and contacts the clamping frame (8).

8. The vibration testing device for a PLC controller according to claim 1, characterized in that: A PLC controller (14) is placed on the fixture base (3), and the PLC controller (14) is located between multiple clamping frames (8).

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