Search

CN-224216797-U - Small-size magnetic shielding bucket capability test frock

CN224216797UCN 224216797 UCN224216797 UCN 224216797UCN-224216797-U

Abstract

The utility model discloses a small magnetic shielding barrel performance test fixture in the technical field of magnetic shielding performance detection, which comprises a small magnetic shielding barrel base and a stable support, wherein the stable support is fixedly arranged on the small magnetic shielding barrel base, a plurality of stable supports are arranged, a supporting cambered surface is arranged above the stable support, a small magnetic shielding barrel body is arranged on the stable support, a barrel cover is arranged at the end position of the small magnetic shielding barrel body, a through hole is formed in the barrel cover, a detection base is arranged in the small magnetic shielding barrel body, and the upper surface and the lower surface of the detection base in the length direction are arc-shaped. The utility model uses the gear to match with the screw rod, so that the position of the small sensor tool can be moved, further, the requirements of different test point positions and intervals are met, and the barrel cover is provided with a hole which can be freely opened, so that the position of the small sensor tool can be changed under the condition that the barrel cover is not required to be opened by the test tool, the device is simple to operate, and the flexibility is high.

Inventors

  • WEI XINGCHEN
  • WANG WEI

Assignees

  • 零磁装备(德清)有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (7)

  1. 1. Small-size magnetic shielding bucket performance test fixture, including small-size magnetic shielding bucket base (102) and stable support, its characterized in that, stable support fixed mounting is on small-size magnetic shielding bucket base (102), and stable support is arranged and is provided with a plurality of, and stable support's top is provided with the support cambered surface, is provided with small-size magnetic shielding bucket main part (101) on the stable support, the end position of small-size magnetic shielding bucket main part (101) is provided with the bung, has seted up the through-hole on the bung, be provided with in small-size magnetic shielding bucket main part (101) and detect base (201), be circular-arc between the upper and lower surface of the length direction of detection base (201), the radius of circle equals the inner wall radius of small-size magnetic shielding bucket main part (101), be provided with screw assembly (300) on detection base (201), screw assembly (300) include screw supporting piece one (301), screw supporting piece two (302) and transmission screw (305), the one end fixedly provided with screw supporting piece one (301) of detection base (201), the other end is provided with screw supporting piece two (302), the screw supporting piece (201) is provided with between screw (305), screw assembly (305) and the transmission side (305) is parallel to be provided with screw (301) Be provided with slider (303) on transmission lead screw (305) between lead screw supporting shoe two (302), be provided with on slider (303) switching piece (306), switching piece (306) top is provided with little frock of sensor (601), the outside of lead screw supporting shoe two (302) is provided with rocker subassembly (500), and the output of rocker subassembly (500) is provided with gear two (403), the below meshing of gear two (403) is provided with gear one (404), gear one (404) fixed mounting is in transmission lead screw (305) are close to the one end of lead screw supporting shoe two (302).
  2. 2. The small magnetic shielding barrel performance testing tool according to claim 1, wherein four threaded holes are formed in positions, close to two ends, of the detection base (201), the first screw rod supporting block (301) is fixedly mounted at the rear end of the detection base (201) through screws, is flush with the rear end face of the detection base (201), and after the detection base is placed in a barrel body, the sum of the center thicknesses of the first screw rod supporting block (301) and the small sensor tool (601) is exactly 5cm.
  3. 3. The small-sized magnetic shielding barrel performance testing tool according to claim 2, wherein two through grooves are formed in the position, located on two sides of the middle, of the detection base (201), and a U-shaped groove is formed in one end, close to the rocker assembly (500), of the detection base (201).
  4. 4. The small-sized magnetic shielding barrel performance test fixture according to claim 3, wherein a gear assembly (400) is fixedly arranged on the second screw support block (302), the gear assembly (400) comprises a first gear (404), a second gear (403), a gear support block (401) and a gear shaft (402), the gear support block (401) is fixedly arranged on the second screw support block (302), the second gear (403) is arranged on the gear shaft (402), a clamp spring is arranged at the thin end of the gear shaft (402), and the gear shaft (402) cannot move left and right on the gear support block (401).
  5. 5. The small magnetic shielding barrel performance test fixture of claim 4, wherein the rocker assembly (500) is composed of a hand (501), a handle turntable (503), a handle shaft (504) and a position indicator (502), the hand (501) and the gear shaft (402) are detachable, the handle turntable (503) is connected with the hand (501) shaft, the handle shaft (504) is connected with the handle turntable (503), and the position indicator (502) is mounted on the hand (501).
  6. 6. The small magnetic shielding barrel performance testing tool according to claim 5, wherein bearings (307) are arranged at the matching positions of the transmission screw (305) and the screw support block I (301) and the screw support block II (302), a pin hole is arranged on the adapter block (306) every 20mm, and the sensor small tool (601) realizes left and right position adjustment.
  7. 7. The small-sized magnetic shielding barrel performance test fixture according to claim 6, wherein a limiting block (202) is fixedly arranged on the detection base (201) through a screw.

Description

Small-size magnetic shielding bucket capability test frock Technical Field The utility model belongs to the technical field of magnetic shielding performance detection, and particularly relates to a small magnetic shielding barrel performance test fixture. Background When the magnetic shielding barrel is produced, in order to ensure that the magnetic shielding barrel has magnetic shielding performance meeting design requirements, comprehensive magnetic shielding performance detection is required. The detection is not only an important link of quality control, but also a key step for ensuring that the magnetic shielding barrel plays a role in practical application. Meanwhile, when the magnetic shielding barrel leaves the factory, the magnetic shielding performance of the magnetic shielding barrel needs to be tested again so as to ensure that the equipment can still meet the use requirement after being integrally assembled. This is because materials, structures or process factors that may be introduced during assembly can have an impact on the magnetic shielding properties. The small-sized magnetic shielding barrel is different from the large-sized magnetic shielding barrel, and besides the different testing points, the small-sized magnetic shielding barrel also has a shielding barrel cover part due to shielding performance requirements. The axial line of the small magnetic shielding barrel is 5cm to 65cm away from the bottom of the barrel, and one test point is arranged at intervals of 5 cm. The existing detection method mainly adopts the following modes that a foam substrate method is adopted, a substrate with a specific height is built by utilizing foam, the surface of the substrate is just positioned on an axis, and a small sensor tool is placed on the foam to test the magnetic shielding performance. The method is suitable for testing requirements of different equipment to a certain extent by adjusting the height of the foam. The substrate positioning method comprises the steps of customizing a specific bottom plate, enabling the surface of the specific bottom plate to be just positioned on an axis, and forming a groove on the bottom plate at intervals of 5cm for placing small sensor tools. The method does not need to measure the distance when the small tool of the sensor is moved, simplifies the operation and reduces the error introduction. There are a number of disadvantages to using foam to build test substrates. First, when the foam builds the basement, need to use the tape measure to build suitable height, and foam size is fixed for measurement point position is difficult to accurate control, produces the error easily. The error can directly influence the position accuracy of the small sensor tool, so that the final test result is inaccurate, and the performance of the magnetic shielding barrel cannot be truly reflected. Secondly, the point position on the foam is not fixed, and the distance of the small sensor tool moving 5cm each time is required to be measured and adjusted again, so that errors are introduced during each test, the workload of operators is increased, and the detection efficiency is reduced. Third, because the small-sized magnetic shielding barrel is provided with the barrel cover, the barrel cover is more troublesome to install, and the barrel cover needs to be opened for operation when the barrel cover is moved to a position, so that the working efficiency is reduced. In addition, the foam material has low mechanical strength, is easy to damage in the process of frequent handling and adjustment, and further affects the stability and repeatability of the test. There are also significant disadvantages to using substrate positioning methods. First, the test point position of bottom plate recess is fixed, although can satisfy the test demand of test point position interval for 5 cm's equipment, nevertheless need reform transform or redesign to the frock if change test interval, lacks adaptability. Secondly, the substrate positioning method is similar to the foam substrate method, and when the test point is changed, the barrel cover of the small magnetic shielding barrel is required to be opened, so that the workload of operators is increased, and the operation is inconvenient. Disclosure of utility model The utility model aims to solve the technical problems, overcomes the defects of the prior art, provides a small magnetic shielding barrel performance test tool, and adopts the basic conception of the technical scheme that: The utility model provides a small-size magnetic shielding bucket performance test fixture, includes small-size magnetic shielding bucket base and stable support, and stable support fixed mounting is on small-size magnetic shielding bucket base, and stable support arranges and is provided with a plurality of, and stable support's top is provided with the support cambered surface, is provided with small-size magnetic shielding bucket main part on the stable support,