Quick disassembly type calibration tool

Abstract

The invention relates to a quick-release calibration tool which comprises an upper pressing plate and a lower pressing plate, the upper pressing plate and the lower pressing plate are directly connected with a torque device, the upper pressing plate and the lower pressing plate are both provided with corresponding positioning bolt holes, the two sides of the upper pressing plate are both provided with a plurality of fixing grooves, the upper end of the torque device is arranged in the fixing grooves and connected with the upper pressing plate, and the lower end of the torque device is connected with the lower pressing plate. The upper end of the torque device is clamped with the upper pressing plate to form a buckle type locking mode, compared with a screw tightening test, the test is more efficient, and the upper pressing plate and the lower pressing plate are both provided with protective layers to protect the waveguide coaxial converter and prevent the waveguide coaxial converter from paint peeling and deformation.

Description

Technical Field

[0001] The invention relates to the technical field of radio frequency connectors, and in particular to a quick-release calibration tool. Background Art

[0002] In the field of RF testing, most waveguide coaxial converters (hereinafter referred to as waveguides) are usually fixed with screws during calibration to ensure the accuracy of the calibration results. The advantage of this method is that it is firm. After the screws are tightened, the waveguides are not easily displaced, which ensures the accuracy of the calibration results. However, its disadvantages are also obvious. Due to the small size of the waveguide, it is not easy to operate with tools to tighten it, and the anti-oxidation paint on the surface of the waveguide is likely to fall off during the tightening process of the screws. The waveguide may also deform under long-term operation. Summary of the invention

[0003] The present invention proposes a quick-release calibration tool, in which the upper end of the torque device is snap-connected with the upper pressure plate to form a snap-on locking method, which is more efficient than the screw tightening test. The upper pressure plate and the lower pressure plate are both provided with a protective layer to protect the waveguide coaxial converter and prevent it from losing paint and deformation.

[0004] In order to solve the problems in the above background technology, the present invention is implemented by the following technical solutions:

[0005] A quick-release calibration tool comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are directly connected to a torque device, the upper pressure plate and the lower pressure plate are both provided with corresponding positioning bolt holes, a plurality of fixing grooves are provided on both sides of the upper pressure plate, the upper end of the torque device is arranged in the fixing groove and connected to the upper pressure plate, and the lower end of the torque device is connected to the lower pressure plate.

[0006] Furthermore, the torque device includes a fixed rod, a rotating shaft and a torque rod, the fixed rod and the torque rod are connected by a connecting rod, the connecting rod is divided into two groups, the upper ends of the two groups of connecting rods are respectively arranged at both ends of the fixed rod, the torque rod is arranged between the two groups of connecting rods, the lower ends of the two groups of connecting rods pass through the torque rod and are connected to the rotating shaft, the fixed rod is arranged in the fixed groove and connected to the upper pressure plate, and the rotating shaft is connected to the lower pressure plate.

[0007] Furthermore, the connecting rod includes a first connecting rod and a second connecting rod, the upper ends of the first connecting rod and the second connecting rod are respectively arranged at two ends of the fixed rod, and the lower ends of the first connecting rod and the second connecting rod pass through the torque rod and are connected to the rotating shaft.

[0008] Furthermore, the first connecting rod is provided with an upper positioning block, a lower positioning block is provided at the lower end of the upper positioning block, and the second connecting rod is provided with a tension spring, and the tension spring is located between the torque rod and the fixing rod.

[0009] Furthermore, the flatness of the upper pressing plate and the lower pressing plate is ≤0.02 mm, and the roughness is <0.8 mm.

[0010] Furthermore, a protective layer is embedded on the lower end of the upper pressing plate and the upper end of the lower pressing plate.

[0011] Furthermore, the protective layer is polytetrafluoroethylene.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] The upper end of the torque device is snap-connected to the upper pressure plate to form a snap-on locking method, which is more efficient than the screw tightening test. Both the upper pressure plate and the lower pressure plate are provided with a protective layer to protect the waveguide coaxial converter and prevent it from losing paint and deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0016] Figure 3 It is a structural schematic diagram of the torque device in the present invention.

[0017] Description of Reference Numerals

[0018] 1. Upper pressure plate; 2. Lower pressure plate; 3. Torque device; 31. Fixed rod; 32. Rotating shaft; 33. Torque rod; 34. Connecting rod; 341. First connecting rod; 342. Second connecting rod; 343. Upper positioning block; 344. Lower positioning block; 345. Tension spring; 4. Positioning bolt hole; 5. Fixing groove. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 3 As shown, a quick-release calibration tool comprises an upper pressing plate 1 and a lower pressing plate 2, wherein a torque device 3 is connected between the upper pressing plate 1 and the lower pressing plate 2, and both the upper pressing plate 1 and the lower pressing plate 2 are provided with corresponding positioning bolt holes 4, and both sides of the upper pressing plate 1 are provided with a plurality of fixing grooves 5, the upper end of the torque device 3 is arranged in the fixing groove 5, and the lower end of the torque device 3 is connected to the lower pressing plate 2.

[0020] The upper end of the torque device 3 is snap-fitted to the upper pressure plate 1 to form a snap-fit ​​locking method, which is more efficient than a screw tightening test.

[0021] The torque device 3 includes a fixed rod 31, a rotating shaft 32 and a torque rod 33. The fixed rod 31 and the torque rod 33 are connected by a connecting rod 34. The connecting rod 34 is divided into two groups. The upper ends of the two groups of connecting rods 34 are respectively arranged at the two ends of the fixed rod 31. A torque rod 33 is arranged between the two groups of connecting rods 34. The lower ends of the two groups of connecting rods 34 pass through the torque rod 33 and are connected to the rotating shaft 32. The fixed rod 31 is arranged in the fixed groove 5 and is connected to the upper pressure plate 1, and the rotating shaft 32 is connected to the lower pressure plate 2.

[0022] The connecting rod 34 includes a first connecting rod 341 and a second connecting rod 342 . The upper ends of the first connecting rod 341 and the second connecting rod 342 are respectively disposed at two ends of the fixing rod 31 , and the lower ends of the first connecting rod 341 and the second connecting rod 342 pass through the torque rod 33 to be connected to the rotating shaft 32 .

[0023] The first connecting rod 341 is provided with an upper positioning block 343 , and a lower positioning block 344 is provided at the lower end of the upper positioning block 343 . The second connecting rod 342 is provided with a tension spring 345 , and the tension spring 345 is located between the torque rod 33 and the fixing rod 31 .

[0024] The flatness of the upper pressing plate 1 and the lower pressing plate 2 is ≤0.02mm, and the roughness is <0.8mm.

[0025] The lower end of the upper pressing plate 1 and the upper end of the lower pressing plate 2 are both inlaid with a protective layer. The upper pressing plate 1 and the lower pressing plate 2 are both provided with a protective layer to protect the waveguide coaxial converter and prevent it from losing paint and deforming.

[0026] The protective layer is polytetrafluoroethylene.

[0027] The operation process of the present invention:

[0028] Before calibration, place the upper pressure plate 1 and the lower pressure plate 2 on the two test waves respectively. After placing the calibration parts, use the positioning bolts to pass through the positioning bolt holes 4 for positioning. Then place the fixing rod 31 in the fixing groove 5 to complete the fixation and start the calibration work. Because the calibration parts used in the calibration process are different, it can be achieved by adjusting the placement position of the torque rod 33. Specifically, the torque rod 33 can be placed on the upper positioning block 343 or the lower positioning block 344 provided on the first connecting rod 341 to achieve different torque changes and achieve consistent wave docking torque during the calibration process. After the calibration is completed, rotate the rotating shaft 32 to remove the quick-release calibration tooling.

Claims

1. A quick-release calibration tool, characterized by: It comprises an upper pressing plate (1) and a lower pressing plate (2), wherein a torque device (3) is connected between the upper pressing plate (1) and the lower pressing plate (2), the upper pressing plate (1) and the lower pressing plate (2) are both provided with corresponding positioning bolt holes (4), a plurality of fixing grooves (5) are provided on both sides of the upper pressing plate (1), the upper end of the torque device (3) is arranged in the fixing groove (5), and the lower end of the torque device (3) is connected to the lower pressing plate (2).

2. The quick-release calibration tool according to claim 1, characterized in that: The torque device (3) comprises a fixed rod (31), a rotating shaft (32) and a torque rod (33); the fixed rod (31) and the torque rod (33) are connected via a connecting rod (34); the connecting rod (34) is divided into two groups; the upper ends of the two groups of connecting rods (34) are respectively arranged at two ends of the fixed rod (31); the torque rod (33) is arranged between the two groups of connecting rods (34); the lower ends of the two groups of connecting rods (34) pass through the torque rod (33) and are connected to the rotating shaft (32); the fixed rod (31) is arranged in the fixed groove (5) and is connected to the upper pressure plate (1); the rotating shaft (32) is connected to the lower pressure plate (2).

3. The quick-release calibration tool according to claim 2, characterized in that: The connecting rod (34) comprises a first connecting rod (341) and a second connecting rod (342), wherein the upper ends of the first connecting rod (341) and the second connecting rod (342) are respectively arranged at two ends of the fixing rod (31), and the lower ends of the first connecting rod (341) and the second connecting rod (342) pass through the torque rod (33) and are connected to the rotating shaft (32).

4. The quick-release calibration tool according to claim 3, characterized in that: The first connecting rod (341) is provided with an upper positioning block (343), and a lower positioning block (344) is provided at the lower end of the upper positioning block (343). The second connecting rod (342) is provided with a tension spring (345), and the tension spring (345) is located between the torque rod (33) and the fixing rod (31).

5. The quick-release calibration tool according to claim 1, characterized in that: The flatness of the upper pressing plate (1) and the lower pressing plate (2) is ≤0.02 mm, and the roughness is <0.8 mm.

6. The quick-release calibration tool according to claim 5, characterized in that: The lower end of the upper pressing plate (1) and the upper end of the lower pressing plate (2) are both inlaid with a protective layer.

7. The quick-release calibration tool according to claim 6, characterized in that: The protective layer is polytetrafluoroethylene.

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