CN212568969U

CN212568969U - Surface-mounted radio frequency attenuator test fixture

Info

Publication number: CN212568969U
Application number: CN202020396564.2U
Authority: CN
Inventors: 温凯
Original assignee: Qingdao Fuweiheng Technology Co ltd
Current assignee: Qingdao Fuweiheng Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-02-19
Anticipated expiration: 2030-03-25

Abstract

The utility model discloses a surface-mounted radio frequency attenuator test fixture, including base and test circuit, the top of base is fixed with the test circuit, the both ends of test circuit are all fixed with the fixed block, the outer wall of fixed block all installs coaxial connector, the top rear side fixed mounting of base has the extension board, the outer wall of extension board installs hold-down mechanism; hold-down mechanism includes fixed plate, electric putter, stopper, clamp plate and pressure controller, electric putter is installed to the outer wall of fixed plate, stopper and stopper are installed on the extension board surface to the downside of fixed plate, electric putter's piston rod run through fixed plate and stopper and with clamp plate fixed connection. The utility model discloses a pressure control appearance is controlled pressure to make electric putter drive the power control that the clamp plate pushed down more accurate, thereby make and avoid appearing causing the condition of injury to the attenuator, make the long service life of device.

Description

Surface-mounted radio frequency attenuator test fixture

Technical Field

The utility model relates to an attenuator test technical field specifically is a table type radio frequency attenuator test fixture.

Background

In the testing process of the radio frequency attenuator, the product is required to be placed at an accurate position on a testing circuit board, and the bottom of the attenuator is required to be in good contact with the testing circuit board. When the working frequency of the product is very high, the tiny position difference can cause a huge error of the test performance of the product; in addition, slight changes of the contact surface of the product to be tested and the test circuit board can cause larger errors of the test performance of the product. How to realize the accurate test of the products to be tested and ensure the operation convenience of the tester at the same time, and not to damage the products becomes the problem to be solved urgently at present. The product is required to be welded on a test circuit board to realize accurate test of product performance, and the welded product cannot be suitable for normal use of subsequent communication equipment production.

According to patent CN201420205127.2, a surface-mounted radio frequency attenuator test fixture comprises a base, a support column, a test device and a clamping device, wherein the support column, the test device and the clamping device are arranged on the base, the test device comprises a test circuit board and a fixing module, the fixing module fixes the surface-mounted radio frequency attenuator to be tested on the test circuit board, the clamping device is fixed on the support column and comprises a pressing rod and a driving device, and the driving device drives the pressing rod to accurately position the surface-mounted radio frequency attenuator to be tested on the test circuit board. The utility model provides a table pastes type radio frequency attenuator test fixture can ensure to paste type radio frequency attenuator will table in the testing process and be fixed in the accurate position on the test circuit board, makes the bottom and the circuit board contact of attenuator good simultaneously, improves the measuring accuracy of attenuator product, this tool simple structure, and convenient operation has good application prospect.

At present, the existing surface-mounted radio frequency attenuator test jig has some defects, for example; when the device is used, the manual driving is adopted, the manual driving is inaccurate in force control, the excessive force is easy to occur, and the attenuator is easy to be damaged. For this reason, new technical solutions need to be designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a table pastes type radio frequency attenuator test fixture has solved the problem that proposes in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a surface-mounted radio frequency attenuator test fixture comprises a base and a test circuit, wherein the top of the base is fixedly provided with the test circuit, two ends of the test circuit are fixedly provided with fixed blocks, the outer walls of the fixed blocks are provided with coaxial connectors, the rear side of the top of the base is fixedly provided with a support plate, and the outer wall of the support plate is provided with a pressing mechanism;

hold-down mechanism includes fixed plate, electric putter, stopper, clamp plate and pressure controller, electric putter is installed to the outer wall of fixed plate, stopper and stopper are installed in the extension board surface to the downside of fixed plate, electric putter's piston rod run through fixed plate and stopper and with clamp plate fixed connection, pressure controller is installed to the outer wall of extension board, pressure controller's pressurized end is installed in the bottom of clamp plate.

As a preferred embodiment of the present invention, the outer wall of the pressure end of the pressure controller is sleeved with a rubber sleeve.

As a preferred embodiment of the present invention, the pressure controller is electrically connected to the electric push rod.

As an optimal implementation manner of the utility model, the through-hole with the electric putter piston rod adaptation is all seted up to the outer wall of fixed plate and stopper.

As a preferred embodiment of the present invention, the controller body and the pressure receiving end of the pressure controller are connected by a wire.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a pressure control appearance is controlled pressure to make electric putter drive the power control that the clamp plate pushed down more accurate, thereby make and avoid appearing causing the condition of injury to the attenuator, make the long service life of device.

2. The utility model discloses a pressurized end outer wall cover of pressure control appearance is equipped with the rubber sleeve to avoid appearing causing the phenomenon of wearing and tearing to the attenuator.

Drawings

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

FIG. 1 is a schematic view of the overall structure of a surface-mount radio frequency attenuator test fixture according to the present invention;

fig. 2 is a schematic diagram of the pressing plate structure of the surface-mounted radio frequency attenuator testing jig of the present invention.

In the figure: 1. a base; 2. a test circuit; 3. a fixed block; 4. a coaxial connector; 5. a support plate; 6. a fixing plate; 7. an electric push rod; 8. a limiting block; 9. pressing a plate; 10. a pressure control instrument; 11. a rubber sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being 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.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. To the ordinary technical personnel in this field, can understand the specific meaning in the utility model of above-mentioned term with the concrete condition, the utility model provides an electrical apparatus's model is the reference only, can be through changing different models electrical apparatus that the function is the same according to the actual use condition.

Referring to fig. 1-2, the present invention provides a technical solution: a surface-mounted radio frequency attenuator test fixture comprises a base 1 and a test circuit 2, wherein the top of the base 1 is fixedly provided with the test circuit 2, two ends of the test circuit 2 are fixedly provided with fixed blocks 3, the outer walls of the fixed blocks 3 are provided with coaxial connectors 4, the rear side of the top of the base 1 is fixedly provided with a support plate 5, and the outer wall of the support plate 5 is provided with a pressing mechanism;

the pressing mechanism comprises a fixing plate 6, an electric push rod 7, a limiting block 8, a pressing plate 9 and a pressure controller 10, the electric push rod 7 is installed on the outer wall of the fixing plate 6, the limiting block 8 and the limiting block 8 are installed on the surface of the supporting plate 5 on the lower side of the fixing plate 6, a piston rod of the electric push rod 7 penetrates through the fixing plate 6 and the limiting block 8 and is fixedly connected with the pressing plate 9, the pressure controller 10 is installed on the outer wall of the supporting plate 5, the pressed end of the pressure controller 10 is installed at the bottom of the pressing plate 9, in the embodiment, as shown in fig. 1, pressure is controlled through the pressure controller 10, and therefore the situation that the attenuator is damaged due to overlarge.

In this embodiment, referring to fig. 2, a rubber sleeve 11 is sleeved on an outer wall of a pressure end of the pressure controller 10, so as to avoid the abrasion phenomenon.

In this embodiment, referring to fig. 1, the pressure controller 10 is electrically connected to the electric push rod 7, and functions to stop increasing the pressure of the electric push rod 7 after the pressure value reaches a certain value, and maintain the pressure value.

Please refer to fig. 1 in this embodiment, the outer walls of the fixing plate 6 and the limiting block 8 are both provided with through holes adapted to the piston rod of the electric push rod 7, which is used for limiting the piston rod of the electric push rod 7 to avoid the occurrence of deviation.

In this embodiment, referring to fig. 1, the controller body and the pressure end of the pressure controller 10 are connected by a wire.

It should be noted that, the components included in the surface-mounted radio frequency attenuator testing jig of the present invention are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known to those skilled in the art through technical manuals or through conventional experimental methods, at the idle position of the device, all the electrical devices, which refer to power components, electrical devices, adaptive monitoring computers and power supplies, are connected through wires, and the specific connection means should be referred to the following working principle, in which the electrical connection between the electrical devices is completed in sequence, and the detailed connection means is a technique known in the art, and the following mainly introduces the working principle and process, without describing the electrical control, when a surface-mounted radio frequency attenuator testing jig is used, the attenuator is firstly placed between two sets of fixed blocks 3, so that the bottom of the attenuator is attached to the surface of the testing circuit board 2, then carry out electric connection with coaxial connector 4's circuit and test circuit board 2, then start electric putter 7 and make clamp plate 9 descend, make clamp plate 9 press on the attenuator, make the attenuator bottom tightly laminate on test circuit board 2 detect can, the laminating of the pressurized end through pressure control appearance 10 (the model is DI-2) is on the attenuator, thereby can record the pressure value, make control in the maximum pressure value within range, then pressure control appearance 10 signal feedback makes holding pressure to electric putter 7, thereby avoid appearing the condition that the too big attenuator of pressure caused the damage, the rubber sleeve 11 of the pressurized end suit of pressure control appearance 10 makes and avoids causing wearing and tearing to the attenuator simultaneously, the device simple structure, and convenient operation, therefore, the clothes hanger is strong in practicability.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a table type radio frequency attenuator test fixture, includes base (1) and test circuit (2), its characterized in that: the testing device comprises a base (1), a testing circuit (2) and a supporting plate (5), wherein the top of the base (1) is fixedly provided with the testing circuit, two ends of the testing circuit (2) are respectively and fixedly provided with a fixed block (3), the outer wall of each fixed block (3) is provided with a coaxial connector (4), the rear side of the top of the base (1) is fixedly provided with the supporting plate (5), and the outer wall of each supporting plate (5) is provided with a pressing mechanism;

the pressing mechanism comprises a fixing plate (6), an electric push rod (7), a limiting block (8), a pressing plate (9) and a pressure controller (10), the electric push rod (7) is installed on the outer wall of the fixing plate (6), the limiting block (8) and the limiting block (8) are installed on the surface of the supporting plate (5) on the lower side of the fixing plate (6), a piston rod of the electric push rod (7) penetrates through the fixing plate (6) and the limiting block (8) and is fixedly connected with the pressing plate (9), the pressure controller (10) is installed on the outer wall of the supporting plate (5), and a pressed end of the pressure controller (10) is installed at the bottom of the pressing plate (9).

2. The surface-mounted radio frequency attenuator test fixture of claim 1, wherein: the outer wall of the pressed end of the pressure controller (10) is sleeved with a rubber sleeve (11).

3. The surface-mounted radio frequency attenuator test fixture of claim 1, wherein: the pressure control instrument (10) is electrically connected with the electric push rod (7).

4. The surface-mounted radio frequency attenuator test fixture of claim 1, wherein: the outer walls of the fixing plate (6) and the limiting block (8) are provided with through holes matched with the piston rod of the electric push rod (7).

5. The surface-mounted radio frequency attenuator test fixture of claim 1, wherein: the control instrument body and the pressure end of the pressure control instrument (10) are connected through a lead.