CN217442746U - RF shielding corrugated pipe contact finger force quantification testing device - Google Patents

Abstract

The utility model discloses a quantitative testing device for the contact finger force of an RF shielding corrugated pipe, which comprises an installation support, wherein the installation support is provided with an RF shielding corrugated pipe testing module, a sliding mechanism, a dynamometer and a circuit on-off indicating piece, and the dynamometer is arranged on the sliding mechanism; the test module comprises a corrugated pipe body, a first contact finger assembly and a second contact finger assembly which are coaxially arranged, a beam inner pipe which is coaxially arranged is arranged in the corrugated pipe body, the second contact finger assembly comprises a plurality of contact finger pieces which are distributed in a circumferential array, the first contact finger assembly comprises a plurality of first contact fingers which are distributed in a circumferential array, the first ends of the first contact fingers are fixed on the corrugated pipe body, and the second ends of the first contact fingers are pressed on one ends of the contact finger pieces; the corrugated pipe body, the first contact finger to be tested, the contact finger piece corresponding to the first contact finger to be tested and the circuit on-off indicating piece are electrically connected through a lead; the dynamometer is connected with the second end of the first contact finger to be tested through a connecting wire.

Description

RF shielding corrugated pipe contact finger force quantification testing device

Technical Field

The utility model relates to a synchrotron radiation light shield technical field especially relates to a RF shielding corrugated pipe contact indicates power quantization test device.

Background

In the accelerator ultrahigh vacuum system, the RF shielding corrugated pipe can counteract the installation error and can provide a stable RF shielding structure for the flange adapter part, but the RF shielding structure of the RF shielding corrugated pipe is easy to stretch, compress, deflect or angularly deflect during the installation process to influence the contact force of the RF shielding corrugated pipe, and the RF shielding structure comprises contact fingers and spring fingers which are in contact.

In the existing machining process, the pressure of the spring finger is often used as the spring finger pressure for machining the RF shielding corrugated pipe by stretching the spring scale by a quality inspector and visually observing the spring scale index when a gap appears between the spring finger and the contact finger, but the contact and the separation between the spring finger and the contact finger are judged by observation, so that large errors exist often, and the spring finger pressure is difficult to quantify.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide a quantitative test device for RF shield bellows contact finger force.

The embodiment of the utility model provides a RF shields corrugated pipe contact finger power quantization test device, including the installing support, be equipped with RF shields corrugated pipe test module, slide mechanism, dynamometer and circuit break-make indicator on the installing support, the dynamometer sets up on the slide mechanism;

the RF shielding corrugated pipe testing module comprises a corrugated pipe body, a first contact finger assembly and a second contact finger assembly, wherein a beam inner pipe is coaxially arranged in the corrugated pipe body, the second contact finger assembly comprises a plurality of contact finger pieces distributed in a circumferential array, the first contact finger assembly comprises a plurality of first contact fingers distributed in a circumferential array, the first contact fingers and the contact finger pieces are in one-to-one correspondence in the central axis direction of the beam inner pipe, the first ends of the first contact fingers are fixed on the corrugated pipe body, the second ends of the first contact fingers are obliquely oriented to the beam inner pipe and extend along the central axis direction of the beam inner pipe, and the second ends of the first contact fingers are pressed on one ends of the contact finger pieces;

the corrugated pipe body, the first contact finger to be tested, the contact finger piece corresponding to the first contact finger to be tested and the circuit on-off indicating piece are electrically connected through a lead;

the dynamometer is connected with the second end of the first contact finger to be tested through a connecting line.

In some examples, the RF shielded bellows test module further includes a positioning mandrel, and the bellows body, the beam inner tube, the second contact finger assembly, and the first contact finger assembly are all sleeved on the positioning mandrel.

In some examples, the contact finger member is an L-shaped structure, and includes a positioning piece, a conductive shaft, and a second contact finger, where the positioning piece is perpendicular to the central axis direction of the beam inner tube, the conductive shaft and the second contact finger are respectively connected to two opposite sides of the positioning piece in the central axis direction of the beam inner tube, a second end of the first contact finger is pressed on one end of the second contact finger away from the positioning piece, and the second contact finger is closer to the positioning core shaft than the conductive shaft.

In some examples, the second contact finger assembly further comprises a second contact finger mount and a second contact finger pad, the second contact finger mount and the second contact finger pad being connected in a central axis direction of the positioning mandrel;

in the direction of the central axis surrounding the positioning mandrel, the second contact finger mounting seat is provided with a plurality of conductive shaft mounting holes which are communicated along the central axis direction of the positioning mandrel, one side of the second contact finger mounting seat, which is close to the second contact finger pressing ring, is provided with a plurality of positioning grooves which are in one-to-one correspondence with the positioning pieces, the positioning pieces are positioned in the positioning grooves, and the conductive shafts penetrate through the conductive shaft mounting holes;

the second contact finger-pressing plate is provided with a circular mounting through hole which is communicated along the central axis direction of the positioning mandrel, the second contact finger-pressing plate is abutted against the positioning sheet, and the second contact finger penetrates through the circular mounting through hole and is abutted against the first contact finger.

In some examples, one end of the second contact finger far away from the positioning sheet is also in contact with the outer side of the beam inner tube, and one side of the second contact finger facing the positioning mandrel is coated with an insulating layer.

In some examples, along the central axis direction of the positioning mandrel, an annular groove is formed in one side, close to the second contact finger press plate, of the second contact finger mounting seat, the annular groove is provided with an annular positioning surface perpendicular to the central axis direction of the positioning mandrel, and the positioning groove is arranged in the annular positioning surface;

and along the central axis direction of the positioning core shaft, one side of the second contact finger pressing plate, which is close to the second contact finger mounting seat, is provided with an annular bulge matched with the annular groove.

In some examples, the first contact finger assembly further comprises a first contact finger press ring by which a plurality of the first contact fingers are mounted to the bellows body;

the second contact finger mounting seat is connected with the second contact finger pressing plate through a bolt, and the second contact finger mounting seat is connected with the positioning mandrel through a pin.

In some examples, the RF shielding corrugated pipe test module further includes two supporting seats arranged at intervals, the positioning mandrel is erected on the two supporting seats, and a semicircular mounting groove adapted to the positioning mandrel is formed at the top end of the supporting seat;

and a first angle disc is arranged at one end of the positioning mandrel, and a second angle disc is arranged on the supporting seat close to the first angle disc.

In some examples, the sliding mechanism includes a driving screw, a slider slidably connected to the driving screw, a driving wheel connected to one end of the driving screw, and a support frame provided with a guide portion, the driving screw and the slider are both mounted on the support frame, the slider is in guiding fit with the guide portion, and the dynamometer is disposed on the slider.

In some examples, the dynamometer includes a digital display push-pull dynamometer; and/or the presence of a gas in the gas,

the on-off circuit indicator comprises any one of a bulb, a voltmeter, an ammeter or a multimeter.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

in the quantitative testing device for the contact finger force of the RF shielding corrugated pipe, the corrugated pipe body, the first contact finger to be tested, the contact finger corresponding to the first contact finger to be tested and the circuit on-off indicating piece are electrically connected through the lead to form a testing loop, the dynamometer is connected with the second end of the first contact finger to be tested through the connecting wire, the dynamometer is movable along with the sliding mechanism, the dynamometer pulls up the first contact finger to be tested through the connecting wire, whether the first contact finger to be tested is separated from the corresponding second contact finger is indicated through the state of the circuit on-off indicating piece, when the circuit on-off indicating piece represents that the first contact finger to be tested is separated from the corresponding second contact finger, the force measured by the dynamometer is the pressure of the first contact finger to be tested, thereby quickly and reliably quantifying the pressure of each first contact finger of the RF shielding corrugated pipe, it is convenient to know the pressure of each first contact finger of the RF shield bellows in the free state, the offset state, and the angular offset state.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

fig. 1 is a schematic structural diagram of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a mounting bracket of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an RF bellows test module according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of an RF bellows test module according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a positioning core shaft of an RF bellows contact finger force quantitative testing apparatus according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a contact finger of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second contact finger mounting seat of the RF bellows contact finger force quantitative testing apparatus according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second contact finger plate of the RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a sliding mechanism of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a first adaptor plate of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a second interposer of the device for quantitatively testing contact finger force of the RF bellows according to the embodiment of the present invention;

fig. 12 is another schematic structural diagram of a positioning mandrel of an RF bellows contact finger force quantification testing apparatus according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1-4, an embodiment of the present invention provides a device for quantitatively testing contact finger force of an RF shielded corrugated pipe, which includes a mounting bracket 1, wherein the mounting bracket 1 is provided with an RF shielded corrugated pipe testing module 2, a sliding mechanism 3, a dynamometer 4 and a circuit on-off indicator 5, and the dynamometer 4 is arranged on the sliding mechanism 3;

the RF shielding corrugated pipe test module 2 comprises a corrugated pipe body 21, a first contact finger assembly and a second contact finger assembly, wherein a beam inner pipe 22 which is coaxially arranged is arranged in the corrugated pipe body 21, the second contact finger assembly comprises a plurality of contact finger pieces 23 which are distributed in a circumferential array, the first contact finger assembly comprises a plurality of first contact fingers 24 which are distributed in a circumferential array, the first contact fingers 24 correspond to the contact finger pieces 23 in the central axis direction of the beam inner pipe 22 one by one, the first ends of the first contact fingers 24 are fixed on the corrugated pipe body 21, the second ends of the first contact fingers 24 incline to the beam inner pipe 22 and extend along the central axis direction of the beam inner pipe 22, and the second ends of the first contact fingers 24 are pressed at one ends of the contact finger pieces 23;

the corrugated pipe body 21, the first contact finger 24 to be tested, the contact finger piece 23 corresponding to the first contact finger 24 to be tested and the circuit on-off indicating piece 5 are electrically connected through conducting wires;

the load cell 4 is connected to the second end of the first contact finger 24 to be tested by a connection line.

In the above embodiment, the first contact finger of the RF shield bellows contact finger force quantification test device is a spring finger, so the second end of the first contact finger abuts against the first end of the contact finger member 23;

the RF shielding corrugated pipe contact finger force quantitative testing device further comprises a power supply 6, the corrugated pipe body 21, the first contact finger 24 and the contact finger piece 23 are all metal parts, and the corrugated pipe body 21, the first contact finger 24 and the contact finger piece 23 are in direct contact in sequence.

Bellows body 21, the first contact finger 24 that awaits measuring, with the corresponding contact finger 23 of the first contact finger 24 that awaits measuring and circuit on-off indicating member 5 pass through wire electric connection, specifically are: the contact finger piece 23 corresponding to the first contact finger 24 to be tested is connected with the circuit on-off indicator 5 through a lead, the circuit on-off indicator 5, the power supply 6 and the corrugated pipe body 21 are connected through leads, and the corrugated pipe body 21, the first contact finger 24 and the contact finger piece 23 are in direct contact because the corrugated pipe body 21, the first contact finger 24 to be tested and the contact finger piece 23 corresponding to the first contact finger 24 to be tested are in direct contact with each other through metal parts, so that a test circuit is formed among the corrugated pipe body 21, the first contact finger 24 to be tested, the contact finger piece 23 corresponding to the first contact finger 24 to be tested, the circuit on-off indicator 5 and the power supply 6 through leads.

As shown in fig. 1 to 5, the RF shielded bellows test module 2 further includes a positioning mandrel 20, and the bellows body 21, the beam inner tube 22, the first contact finger assembly and the second contact finger assembly are all sleeved on the positioning mandrel 20. The positioning mandrel 20 in fig. 5 is a straight pipe member, which facilitates the coaxial installation of the corrugated pipe body 21, the beam inner pipe 22, the first contact finger assembly and the second contact finger assembly on the mounting bracket, so that the pressure of each first contact finger of the RF shielded corrugated pipe in a free state can be measured.

In the present application, the positioning mandrel 20 includes, but is not limited to, the form of a straight tube member illustrated in fig. 5. Referring to fig. 12, the positioning mandrel includes first and second segments connected with a local offset between a central axis of the first segment and a central axis of the second segment. Referring to fig. 12, the first contact finger assembly and the second contact finger assembly are respectively disposed on the first section and the second section, and the bellows body and the beam inner tube are located at a portion where the first contact finger assembly is located, so that the pressure of each first contact finger of the RF shielded bellows in the offset state and the angular offset state can be measured.

In some embodiments, as shown in fig. 6, the contact finger 23 is an L-shaped structure, and includes a positioning plate 231, a conductive shaft 232, and a second contact finger 233, the positioning plate 231 is disposed perpendicular to the central axis direction of the beam inner tube 22, the conductive shaft 232 and the second contact finger 233 are respectively connected to two opposite sides of the positioning plate 231 in the central axis direction of the beam inner tube 22, the second end of the first contact finger 24 is pressed on one end of the second contact finger 233 away from the positioning plate 231, and the second contact finger 233 is closer to the positioning core 20 than the conductive shaft 232.

In this embodiment, the second end of the first contact finger 24 is pressed against the end of the second contact finger 233 remote from the locating tab 231, and the conductive shaft 232 is provided to facilitate the conductive wire connecting the contact finger 23 to other components in the test circuit (e.g., a power supply or an on/off indicator).

In some embodiments, as shown in fig. 7 and 8, the second contact finger assembly further comprises a second contact finger mount 25 and a second contact finger plate 26, the second contact finger mount 25 and the second contact finger plate 26 being connected in the direction of the central axis of the positioning mandrel 20;

in the direction of the central axis surrounding the positioning mandrel 20, the second contact finger mounting seat 25 is provided with a plurality of conductive shaft mounting holes 251 which are communicated along the central axis direction of the positioning mandrel 20, one side of the second contact finger mounting seat 25, which is close to the second contact finger 233 pressing ring, is provided with a plurality of positioning grooves 252 which are in one-to-one correspondence with the positioning pieces 231, the positioning pieces 231 are positioned in the positioning grooves 252, and the conductive shaft 232 penetrates through the conductive shaft mounting holes 251;

the second contact finger-pressure plate 26 has a circular mounting through-hole 261 that penetrates in the central axis direction of the positioning stem 20, the second contact finger-pressure plate 26 abuts against the positioning piece 231, and the second contact finger 233 passes through the circular mounting through-hole 261 and abuts against the first contact finger 24.

The second contact finger mount 25 has a first end face close to the second contact finger pad 26 and a second end face remote from the second contact finger pad 26, and fig. 7 illustrates the second contact finger mount 25 from two angles, respectively, of the first end face and the second end face. Referring to fig. 3-8, the positioning piece 231 of the contact finger 23 is located in the positioning groove 252, the conductive shaft 232 passes through the conductive shaft mounting hole 251 and extends out of the second end face, and the second contact finger 233 is located at the side of the first end face and passes through the circular mounting through hole 261 of the second contact finger press 26, which is also called a first mounting through hole; the second contact finger press 26 abuts against the positioning tab 232, so that the contact finger 23 is pressed against the second contact finger mount 25 by the second contact finger press 26.

Furthermore, one end of the second contact finger 233 far away from the positioning piece 232 is also contacted with the outer side of the beam inner tube 22, and one side of the second contact finger 233 facing the positioning mandrel 20 is coated with an insulating layer 234, so that each part in the test circuit is ensured to be insulated from other parts in the test device, when the test circuit is disconnected, the circuit on-off indicator 5 can indicate that the circuit is disconnected, and the pressure of the first contact finger is measured by the dynamometer.

As an alternative embodiment, along the central axis direction of the positioning mandrel 20, one side of the second contact finger mounting base 25 close to the second contact finger press plate 26 is provided with an annular groove 253, the annular groove 253 has an annular positioning surface perpendicular to the central axis direction of the positioning mandrel 20, and the positioning groove 252 is arranged in the annular positioning surface;

along the central axis direction of the positioning mandrel 20, one side of the second contact finger pressing plate 26 close to the second contact finger mounting seat 25 is provided with an annular protrusion 262 matched with the annular groove 253.

That is, the first end surface of the second contact finger mounting seat 25 is provided with an annular groove 253 in the direction of the second end surface, the positioning groove 252 is provided on the annular positioning surface of the annular groove 253, and the second contact finger pressing plate 26 is provided with an annular protrusion 262 corresponding to the annular groove 253, so that the contact finger 23 can be mounted and fixed better by abutting and pressing the annular protrusion 262 and the annular groove 253.

In some embodiments, the first contact finger assembly further comprises a first contact finger press ring 27, the plurality of first contact fingers 24 being mounted to the bellows body 21 by the first contact finger press ring 27;

the second contact finger mounting base 25 and the second contact finger pressing plate 26 are connected through bolts, and the second contact finger mounting base 25 is connected with the positioning mandrel 20 through pins.

In this embodiment, a semicircular first pin hole 201 is formed in the positioning core shaft 20, the second contact finger mounting base 25 has a second mounting through hole 255 which is through and circular along the central axis direction of the positioning core shaft 20, a semicircular second pin hole 256 is formed in the edge of the second mounting through hole 255, and the pin shaft is positioned in the first pin hole 201 and the second pin hole 256, so that the pin connection between the second contact finger mounting base 25 and the positioning core shaft 20 is realized.

In some embodiments, the RF shielded corrugated tube testing module 2 further includes two supporting seats 28 disposed at an interval, the positioning core 20 is mounted on the two supporting seats 28, a semicircular mounting groove adapted to the positioning core 20 is disposed at a top end of the supporting seat 28, and the corresponding second contact finger assembly, the corresponding first contact finger assembly, the corresponding corrugated tube body, and the corresponding beam inner tube are mounted between the two supporting seats 28.

Optionally, a first angle disc 254 is disposed at one end of the positioning core shaft 20, and a second angle disc 281 is disposed on the supporting seat 28 adjacent to the first angle disc 254. In this embodiment, a second angle scale 281 is disposed near the edge of the semicircular mounting groove of the supporting seat 28 of the first angle scale 254, and the positioning spindle 20 can be rotated in cooperation with the first angle scale 254, so as to adjust the position of the first contact finger to be measured.

In some embodiments, as shown in fig. 9, the sliding mechanism 3 includes a driving screw 31, a slider 32 slidably connected to the driving screw 31, a driving wheel 33 connected to one end of the driving screw 31, and a supporting frame 34 provided with a guide portion 35, the driving screw 31 and the slider 32 are both mounted on the supporting frame 34, the slider 32 is in guiding fit with the guide portion, and the dynamometer 4 is provided on the slider 32.

The driving screw 31 is driven to rotate by rotating the driving wheel, so that the slide block 32 is driven to move, and the dynamometer 4 is correspondingly moved.

Referring to fig. 9, the guide portion 35 may be two guide rods, and the slider 32 is slidably and slidably engaged with the guide portion 35.

Of course, the guiding portion 35 may also be a guiding groove, and the sliding block 32 is provided with a corresponding guiding protrusion; alternatively, the guide portion 35 may be a guide groove, and the slider 32 is provided with a corresponding guide projection.

In some embodiments, the force gauge 4 comprises a digital display push-pull force gauge, which facilitates rapid acquisition of the pressure of the first contact finger; and/or the presence of a gas in the gas,

the on/off circuit indicator 5 comprises any of a light bulb, a voltmeter, an ammeter, or a multimeter.

For example, the on-off circuit indicator 5 is a light bulb, and the value on the dynamometer is read when the light bulb is not on; for example, the on/off circuit indicator 5 is a voltmeter, and a value on the dynamometer is read when the value of the voltmeter is 0; for example, the on/off circuit indicator 5 is an ammeter, and a value on the dynamometer is read when the ammeter value is 0; for example, the on/off circuit indicator 5 is a multimeter, and the value on the dynamometer is read when the multimeter value is 0, so that the pressure value of the first contact finger is measured.

In order to facilitate the installation of the dynamometer, the embodiment of the present invention realizes the rapid installation of the dynamometer on the slider through the first adapter plate 7 and the second adapter plate 8. Referring to the first transfer plate 7 shown in fig. 10, the first transfer plate 7 is provided with a slider mounting hole 71 and a first connection hole 72; referring to the second interposer 8 shown in fig. 11, the second interposer 8 is provided with a dynamometer mounting hole 81 and a second connection hole 82; the slider 32 is provided with a third connecting hole 321. The third connection hole 321 is aligned with the slider mounting hole 71, and the first connection hole 72 and the second connection hole 82 are aligned, so that the first adapter plate 7 is bolted to the slider 32, the dynamometer 4 is bolted to the second adapter plate 8, and the second adapter plate 8 is fixedly mounted to the first adapter plate 7 by bolts.

The embodiment of the utility model provides an in, refer to fig. 1 and fig. 2, design installing support 1 is the T type, installing support 1 has the horizontal part that is used for placing RF shielding bellows test module 2, circuit break-make indicator 5 and power 6 and the vertical part that is used for installing slide mechanism 3 and dynamometer 4, the horizontal part is equipped with test module mounting groove 11, vertical part is equipped with slide mechanism mounting groove 12, RF shielding bellows test module 2 sets up at dynamometer 4 promptly, slide mechanism 3's below, through first angle scale and second angle scale, the upper end of adjusting to vertical direction is pointed to the first contact that will await measuring, make the first contact that awaits measuring indicate to be in on the dynamometry direction of dynamometer. After the pressure measurement is completed on one first contact finger, the next first contact finger is switched and measured, the first contact finger to be tested is determined to be positioned right below the dynamometer through the first angle scale and the second angle scale, and the steps are repeated until the test on all the first contact fingers is completed.

The embodiment of the utility model provides an among the RF shielding bellows contact finger power quantization test device, bellows body 21, the first contact finger 24 that awaits measuring, thereby indicate contact finger 23 and circuit break-make indicator 5 corresponding 24 with the first contact finger that awaits measuring to form the test circuit through the wire electric connection, dynamometer 4 links to each other with the second end that the first contact finger 24 that awaits measuring through the connecting wire, and dynamometer 4 is portable along with slide mechanism 3, dynamometer 4 pulls up the first contact finger 24 that awaits measuring through the connecting wire pulling, indicate through the state of circuit break-make indicator 5 whether the first contact finger 24 that awaits measuring breaks away from corresponding second contact finger 233, when first contact finger 24 that the representation of circuit break-make indicator 5 awaits measuring breaks away from corresponding second contact finger 233, the power that dynamometer 4 measured is the pressure of the first contact finger 24 that awaits measuring, thereby fast, reliably realize the quantization to the pressure that each first contact finger 24 of RF shielding bellows, it is convenient to understand the pressure of each first contact finger 24 of the RF shield bellows in the free state, the deflected state, and the angularly deflected state.

The present invention employs the first, second, etc. to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments that can be formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims (10)

1. The device for quantitatively testing the contact finger force of the RF shielding corrugated pipe is characterized by comprising a mounting bracket, wherein an RF shielding corrugated pipe testing module, a sliding mechanism, a dynamometer and a circuit on-off indicating piece are arranged on the mounting bracket, and the dynamometer is arranged on the sliding mechanism;

the RF shielding corrugated pipe testing module comprises a corrugated pipe body, a first contact finger assembly and a second contact finger assembly, wherein a beam inner pipe is coaxially arranged in the corrugated pipe body, the second contact finger assembly comprises a plurality of contact finger pieces distributed in a circumferential array, the first contact finger assembly comprises a plurality of first contact fingers distributed in a circumferential array, the first contact fingers and the contact finger pieces are in one-to-one correspondence in the central axis direction of the beam inner pipe, the first ends of the first contact fingers are fixed on the corrugated pipe body, the second ends of the first contact fingers are obliquely oriented to the beam inner pipe and extend along the central axis direction of the beam inner pipe, and the second ends of the first contact fingers are pressed on one ends of the contact finger pieces;

the corrugated pipe body, the first contact finger to be tested, the contact finger piece corresponding to the first contact finger to be tested and the circuit on-off indicating piece are electrically connected through a lead;

the dynamometer is connected with the second end of the first contact finger to be tested through a connecting wire.

2. The quantitative testing device for the contact finger force of the RF shielding corrugated pipe as claimed in claim 1, wherein the testing module for the RF shielding corrugated pipe further comprises a positioning mandrel, and the corrugated pipe body, the beam inner pipe, the second contact finger assembly and the first contact finger assembly are all sleeved on the positioning mandrel.

3. The quantitative testing device for the force of the contact finger of the RF shielding corrugated pipe as claimed in claim 2, wherein the contact finger is of an L-shaped structure and comprises a positioning plate, a conductive shaft and a second contact finger, the positioning plate is perpendicular to the central axis direction of the beam inner pipe, the conductive shaft and the second contact finger are respectively connected to two opposite sides of the positioning plate in the central axis direction of the beam inner pipe, the second end of the first contact finger is pressed on one end of the second contact finger away from the positioning plate, and the second contact finger is closer to the positioning core shaft than the conductive shaft.

4. The quantitative RF shield bellow contact finger force testing device according to claim 3, wherein said second contact finger assembly further comprises a second contact finger mount and a second contact finger plate, said second contact finger mount and said second contact finger plate being connected in a central axis direction of said positioning mandrel;

in the direction of the central axis surrounding the positioning mandrel, the second contact finger mounting seat is provided with a plurality of conductive shaft mounting holes which are communicated along the central axis direction of the positioning mandrel, one side of the second contact finger mounting seat, which is close to the second contact finger pressing ring, is provided with a plurality of positioning grooves which are in one-to-one correspondence with the positioning pieces, the positioning pieces are positioned in the positioning grooves, and the conductive shafts penetrate through the conductive shaft mounting holes;

the second contact finger-pressing plate is provided with a circular mounting through hole which is communicated along the central axis direction of the positioning mandrel, the second contact finger-pressing plate is abutted against the positioning sheet, and the second contact finger penetrates through the circular mounting through hole and is abutted against the first contact finger.

5. The quantitative test device for the force of the contact finger of the RF shielding corrugated pipe as claimed in claim 4, wherein the end of the second contact finger away from the positioning plate is also in contact with the outer side of the beam inner pipe, and the side of the second contact finger facing the positioning mandrel is coated with an insulating layer.

6. The RF shield bellows contact finger force quantification test apparatus of claim 4,

an annular groove is formed in one side, close to the second contact finger pressing plate, of the second contact finger mounting seat along the central axis direction of the positioning mandrel, the annular groove is provided with an annular positioning surface perpendicular to the central axis direction of the positioning mandrel, and the positioning groove is formed in the annular positioning surface;

and along the central axis direction of the positioning core shaft, one side of the second contact finger pressing plate, which is close to the second contact finger mounting seat, is provided with an annular bulge matched with the annular groove.

7. The RF-shielded bellows contact finger force quantification test device of claim 4, wherein the first contact finger assembly further comprises a first contact finger press ring, a plurality of the first contact fingers being mounted to the bellows body by the first contact finger press ring;

the second contact finger mounting seat is connected with the second contact finger pressing plate through a bolt, and the second contact finger mounting seat is connected with the positioning mandrel through a pin.

8. The quantitative testing device for the contact finger force of the RF shielding corrugated pipe as claimed in claim 4, wherein the testing module further comprises two supporting seats arranged at intervals, the positioning mandrel is erected on the two supporting seats, and the top end of each supporting seat is provided with a semicircular mounting groove matched with the positioning mandrel;

and a first angle disc is arranged at one end of the positioning mandrel, and a second angle disc is arranged on the supporting seat close to the first angle disc.

9. The quantitative testing device for the contact finger force of the RF shielding bellows as claimed in claim 1, wherein the sliding mechanism comprises a driving screw, a slider slidably connected with the driving screw, a driving wheel connected with one end of the driving screw, and a support frame provided with a guide portion, wherein the driving screw and the slider are both mounted on the support frame, the slider is in guide fit with the guide portion, and the dynamometer is arranged on the slider.

10. The RF shield bellows contact finger force quantitative test device of claim 1, wherein the force gauge comprises a digital display push-pull force gauge; and/or the presence of a gas in the gas,

the on-off circuit indicator comprises any one of a bulb, a voltmeter, an ammeter or a multimeter.

Images