CN216411438U

CN216411438U - Test fixture of filter

Info

Publication number: CN216411438U
Application number: CN202122837897.1U
Authority: CN
Inventors: 隆丰声; 肖叶
Original assignee: Chongqing Daji Electronic Technology Co ltd
Current assignee: Chongqing Daji Electronic Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-29
Anticipated expiration: 2031-11-18

Abstract

The utility model provides a test tool for a filter, which relates to the technical field of filter detection and comprises a base, a driving mechanism, two clamping arms and clamping blocks, wherein the two clamping arms are rotatably connected to the base through a vertical connecting shaft, the two clamping blocks are respectively installed at one end of each clamping arm, the free end of each clamping block is arranged to be an arc surface for clamping the filter, each clamping block is provided with a channel, an adjusting block is transversely and elastically connected in the channel, one end of each adjusting block can penetrate through the arc surface, and the driving mechanism is connected with the two clamping arms and used for driving the clamping arms to rotate in an opposite direction or in a deviating direction. The noise level meter solves the problems that in the prior art, when the noise level meter is operated to test noise in all directions, the difficulty is high, and the test is not accurate enough.

Description

Test fixture of filter

Technical Field

The utility model relates to the technical field of filter detection, in particular to a test tool for a filter.

Background

With the increasing requirements of the communication industry on radio frequency products, wherein the inspection and debugging of the filter are particularly important, a special test tool is often adopted in the prior art to fix the filter for further detection; the common filter test fixture on the market utilizes the lever type lower press rod to press the filter, but the common filter test fixture only can be used for a square filter, and is not convenient enough for fixing the round filter and poor in universality.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a test tool for a filter, which solves the problem of poor universality of the test tool for the filter in the prior art.

According to the embodiment of the utility model, the test tool for the filter comprises a base, a driving mechanism, two clamping arms and clamping blocks, wherein the two clamping arms are rotatably connected to the base through vertical connecting shafts, the two clamping blocks are respectively installed at one end of each clamping arm, the free end of each clamping block is arranged to be an arc surface for clamping the filter, each clamping block is provided with a channel, an adjusting block is transversely and elastically connected in the channel, one end of each adjusting block can penetrate through the arc surface, and the driving mechanism is connected with the two clamping arms to drive the clamping arms to rotate in the opposite direction or in the opposite direction.

Compared with the prior art, the utility model has the following beneficial effects: because the free ends of the two clamping blocks are both arranged into cambered surfaces, the driving mechanism drives the two clamping arms to move oppositely so as to enable the two cambered surfaces to stably clamp the cambered filter shell, and at the moment, the adjusting blocks are compressed in the channel by the filter; because the two channels are transversely and elastically connected with the adjusting block, one end of the adjusting block can extend out of the cambered surface, and the two ends of the cambered surface and the end of the adjusting block, which penetrates out of the cambered surface, form three-point support and stable clamping on the square filter shell; therefore, the tool can be used for adaptively adjusting and stably clamping filters with different shapes, and the universality of the tool is improved.

Drawings

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view of an assembly structure of an adjusting block in the embodiment of the utility model.

In the above drawings: 1. a filter; 2. a base; 201. a flat plate; 202. a support leg; 3. clamping arms; 301. a drive section; 4. a clamping block; 401. a cambered surface; 5. a connecting shaft; 6. an adjusting block; 7. a gear; 8. adjusting the bolt; 9. a spring; 10. a pin shaft; 11. a rotating shaft.

Detailed Description

The technical solution of the present invention is further explained with reference to the embodiments of the drawings.

As shown in fig. 1 to 3, a test fixture for a filter includes a base 2, a driving mechanism, two clamping arms 3 and a clamping block 4, in this embodiment, the two clamping arms 3 are arranged up and down to avoid generating motion interference, and the middle parts of the two clamping arms 3 are rotatably connected to the base 2 through a same vertical connecting shaft 5; the two clamping blocks 4 are respectively arranged at one end of each clamping arm 3, the free end of each clamping block 4 is arranged to be an arc surface 401 for clamping the filter 1, in practice, the arc radius of the arc surface 401 can be set to be larger so that the arc surface can adapt to arc-shaped filters 1 with different outer diameters, and the adjusting blocks 6 and the two ends of the arc surface 401 can support and clamp the square filter 1 at three points; each all be equipped with the passageway on the grip block 4 just horizontal elastic connection has the regulating block 6 in the passageway, two the one end of regulating block 6 can be worn out cambered surface 401, actuating mechanism and two it is in opposite directions or deviate from the rotation for drive it to link to each other with arm lock 3.

Because the free ends of the two clamping blocks 4 are both arranged as the cambered surfaces 401, the driving mechanism drives the two clamping arms 3 to move oppositely, so that the two cambered surfaces 401 stably clamp the housing of the arc-shaped filter 1, and the adjusting block 6 is compressed in the channel by the filter 1; because the two channels are both transversely and elastically connected with the adjusting block 6, one end of the adjusting block 6 can extend out of the cambered surface 401, and the two ends of the cambered surface 401 and the end of the adjusting block 6 penetrating out of the cambered surface 401 form three-point support and stable clamping for the square filter 1 shell; therefore, the fixture can be used for adaptively adjusting and stably clamping the filters 1 with different shapes, and the universality of the fixture is improved.

As shown in fig. 1 and fig. 2, the present invention provides another embodiment, an arc-shaped driving portion 301 is fixedly disposed at one end of each of the clamping arms 3 away from the clamping block 4, and the driving portion 301 is provided with engaging teeth, the two clamping arms 3 are in a scissor shape, the driving mechanism includes a reduction motor and two gears 7 mounted on the base 2, the two gears 7 are rotatably connected to the base 2 through the same vertical rotating shaft 11, in this embodiment, the two gears 7 are one large and one small, the larger gear 7 is disposed below the smaller gear 7 to achieve a reasonable spatial layout, and the structure is compact to avoid movement interference of the clamping arms 3; the two gears 7 are respectively engaged with the inner meshing teeth and the outer meshing teeth on the two driving parts 301, so that the two gears 7 can drive the two clamping arms 3 to move towards or away from each other, and the speed reduction motor is in transmission connection with the rotating shaft 11 and is used for driving the rotating shaft to rotate forwards or reversely; in this embodiment, a gear motor can drive two arm lock 3 simultaneously and accomplish the centre gripping and loosen the action, and compact structure and saving cost, in practice with gear motor's switch setting make things convenient for operating personnel to operate gear motor's opening and stop and just reverse on base 2, in addition, gear motor can realize accurate control to the clamping power, avoids damaging filter 1.

As shown in fig. 2 and 3, according to another embodiment of the present invention, the channel is in a stepped hole shape, the adjusting block 6 includes a head portion and a rod portion which are coaxial, the diameter of the rod portion is smaller than that of the head portion, and one end of the rod portion, which is far away from the head portion, penetrates through the stepped hole, an adjusting bolt 8 is connected to one end of the channel, which is far away from the rod portion, through a thread, and a spring 9 is disposed between the adjusting bolt 8 and the head portion; in the embodiment, an operator can adjust the elastic force of the spring 9 by screwing in or out the adjusting bolt 8, so that the pressing force of the filter 1 is adjusted, and the passage is arranged to be a step shape matched with the adjusting block 6, so that the adjusting block 6 is prevented from integrally penetrating through a step hole.

As shown in fig. 1 and fig. 2, according to another embodiment of the present invention, each clamping block 4 is rotatably connected to the free end of each clamping arm 3 by a vertical pin 10, and the clamping blocks 4 can deflect adaptively when contacting the filter 1, so that the free ends of the two clamping blocks 4 are kept in good contact with the outer wall of the filter 1.

The utility model provides another embodiment, rubber pads (not shown in the figure) are fixedly arranged at the opposite ends of the two clamping blocks 4, and each adjusting block 6 is a rubber column; rubber pad and rubber column play the effect of shock attenuation and increase friction to wave filter 1, promote the centre gripping effect.

As shown in fig. 1, the present invention provides another embodiment, the base 2 includes a plate 201 and a plurality of legs 202 fixed on the plate 201, and the speed reduction motor is vertically installed on one side of the plate 201 away from the clamping arm 3, so that the tool is compact in structure, beautiful and tidy.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The utility model provides a test fixture of wave filter which characterized in that: including base (2), actuating mechanism and two arm lock (3) and grip block (4), two arm lock (3) rotate through vertical connecting axle (5) connect in on base (2), two grip block (4) are installed respectively the one end of arm lock (3), each the free end of grip block (4) all sets up to cambered surface (401) for centre gripping wave filter (1), each all be equipped with the passageway on grip block (4) just horizontal elastic connection has regulating block (6), two in the passageway the one end of regulating block (6) can be worn out cambered surface (401), actuating mechanism and two arm lock (3) link to each other and are used for driving it in opposite directions or deviate from the rotation.

2. The test fixture of the filter of claim 1, wherein: each one end that arm lock (3) deviates from grip block (4) all sets firmly curved drive division (301) and is equipped with the meshing tooth on this drive division (301), two arm lock (3) are the scissors form, actuating mechanism is including installing gear motor and two gears (7) on base (2), two gear (7) all rotate through vertical pivot (11) and connect in on base (2), two gear (7) respectively with two meshing tooth internal gearing and external toothing on the drive division (301), gear motor with pivot (11) transmission is connected and is used for driving its corotation or reversal.

3. The test fixture of a filter of claim 1 or 2, wherein: the passageway is the shoulder hole form, regulating block (6) are including coaxial head and pole portion, the diameter of pole portion is less than head and its one end that deviates from the head are worn out the shoulder hole, the passageway deviates from the one end threaded connection of pole portion has adjusting bolt (8), adjusting bolt (8) with be equipped with spring (9) between the head.

4. The test fixture of the filter of claim 3, wherein: each clamping block (4) is rotatably connected to the free end of each clamping arm (3) through a vertical pin shaft (10).

5. The test fixture of the filter of claim 4, wherein: two the relative one end of grip block (4) all sets firmly the rubber pad, each regulating block (6) is the rubber column.

6. The test fixture of the filter of claim 2, wherein: the base (2) comprises a flat plate (201) and a plurality of support legs (202) fixedly arranged on the flat plate (201), and the speed reducing motor is vertically arranged on one side, deviating from the clamping arm (3), of the flat plate (201).