阅读说明：本技术 一种介质滤波器调试工装 (Dielectric filter debugging tool ) 是由 朱琦 倪玉荣 孙撼林 刘志强 方海峰 何胜 于 2021-03-31 设计创作，主要内容包括：本发明提供的介质滤波器调试工装,包括用于放置介质块的底板、用于固定介质块的固定组件、用于连接介质块及测试器的测试电缆,固定组件包括设置在底板上的定位板、可水平移动的水平固定件和可上下移动的竖直固定件,定位板的一侧壁开设有与介质块相匹配的定位槽,通过使水平固定件能够向接近或远离定位槽槽口的方向移动,能够方便地将介质块固定进行调试,通过使竖直固定件位于定位槽上方,在竖直固定件向下移动抵紧定位槽内的介质块时,使竖直固定件构成介质滤波器的屏蔽壳,能够模拟屏蔽壳对介质滤波器的性能进行检测,通过竖直固定件的上下移动,使得介质块能够露出较大的表面区域用于调试,调试时难度小、良品率高、操作简单、结果准确。(The invention provides a dielectric filter debugging tool, which comprises a bottom plate for placing a dielectric block, a fixing component for fixing the dielectric block, and a test cable for connecting the dielectric block and a tester, wherein the fixing component comprises a positioning plate arranged on the bottom plate, a horizontal fixing piece capable of moving horizontally and a vertical fixing piece capable of moving up and down, a positioning groove matched with the dielectric block is formed in one side wall of the positioning plate, the dielectric block can be conveniently fixed and debugged by enabling the horizontal fixing piece to move towards or away from the notch of the positioning groove, the vertical fixing piece is positioned above the positioning groove, when the vertical fixing piece moves downwards and tightly abuts against the dielectric block in the positioning groove, the vertical fixing piece forms a shielding shell of the dielectric filter, the performance of the dielectric filter can be detected by simulating the shielding shell, and a larger surface area can be exposed for debugging by enabling the vertical fixing piece to move up and down, the debugging difficulty is small, the yield is high, the operation is simple, and the result is accurate.)

1. A dielectric filter debugs frock, includes:

the bottom plate is used for placing a dielectric block of the dielectric filter;

the fixing component is used for fixing the medium block on the bottom plate;

the test cable is used for connecting the medium block and the tester;

the method is characterized in that:

the fixed assembly comprises a positioning plate arranged on the bottom plate, a horizontal fixing piece capable of moving horizontally and a vertical fixing piece capable of moving up and down, a positioning groove matched with the medium block is formed in one side wall of the positioning plate, the horizontal fixing piece can move towards the direction close to or far away from the notch of the positioning groove, the vertical fixing piece is located above the positioning groove, and when the vertical fixing piece moves downwards and tightly abuts against the medium block in the positioning groove, the vertical fixing piece forms a shielding shell of the medium filter.

2. The dielectric filter debugging tool of claim 1, characterized in that: the vertical fixing piece comprises a fixing block and an extension plate, the extension plate vertically extends downwards from the end part, far away from the horizontal fixing piece, of the fixing block, when the vertical fixing piece abuts against the medium block, the bottom wall of the fixing block is attached to the upper surface of the medium block, and a gap is formed between the extension plate and the surface, far away from the horizontal fixing piece, of the medium block.

3. The dielectric filter debugging tool of claim 2, characterized in that: the middle part of the lower bottom surface of the extension plate protrudes downwards to form a protrusion matched with the blind groove in the bottom plate, and when the vertical fixing piece moves downwards to tightly abut against the medium block in the positioning groove, the protrusion tightly abuts against the conductive rubber strip filled in the blind groove.

4. The dielectric filter debugging tool of claim 3, characterized in that: the positioning plate is provided with an avoiding groove for the protrusion to pass through.

5. The dielectric filter debugging tool of claim 4, characterized in that: the avoiding groove is communicated with the positioning groove.

6. The dielectric filter debugging tool of claim 2, characterized in that: the extension plate can move along the horizontal direction to adjust the size of the gap.

7. The dielectric filter debugging tool of claim 1, characterized in that: the projection of the horizontal fixing piece in the vertical direction is in a concave shape, and when the horizontal fixing piece abuts against the medium block, the horizontal fixing piece and the positioning groove wrap the periphery of the medium block.

8. The dielectric filter debugging tool of claim 1, characterized in that: the testing cable is located below the bottom plate and connected with an SMA connector inserted on the bottom plate, and when the dielectric block is located in the positioning groove, an elastic pin needle at the top of the SMA connector is in contact with an input/output electrode of the dielectric block.

9. The dielectric filter debugging tool of claim 1, characterized in that: the tool further comprises a driving assembly, wherein the driving assembly comprises a first air cylinder used for driving the horizontal fixing piece to move, a second air cylinder used for driving the vertical fixing piece to move, and a pneumatic valve used for controlling the first air cylinder and the second air cylinder to act.

10. The dielectric filter debugging tool according to any one of claims 1-9, characterized in that: the frock still includes the support frame, the support frame includes support column, horizontal support plate, vertical support plate and horizontal extension roof beam, the support column be used for with the bottom plate supports in the horizontal support plate, vertical support plate is located one side of bottom plate and with the horizontal support plate is connected perpendicularly, the horizontal extension roof beam passes through connecting bolt fixed connection and is in vertical support plate's top, be provided with on the horizontal extension roof beam and be used for the waist type hole that connecting bolt passed, the extending direction in waist type hole is on a parallel with the moving direction of horizontal fixing spare.

Technical Field

The application relates to the field of dielectric filter machining and manufacturing, in particular to a dielectric filter debugging tool.

Background

Most of the existing dielectric filters comprise a dielectric block and a metal conducting layer, wherein the dielectric block is made of ceramic materials, a plurality of resonant through holes are formed in the dielectric block, and the metal conducting layer is coated on the surface of the dielectric block.

Due to structural limitation, the circuit surface at the front end of the conventional surface-mounted filter dielectric block is usually designed in an open mode, the design has a large signal leakage problem and can affect the index and the using effect of the dielectric filter, and in order to solve the problem, a shielding shell must be welded for shielding when the filter is actually manufactured, so that a good out-of-band suppression effect is obtained.

When the performance of the dielectric filter is debugged, the performance is mainly debugged by polishing off the metal conducting layer on the circuit board at the front end of the dielectric block, the traditional debugging method is to weld the shielding shell and then debug, only a debugging window arranged on the shielding shell can be used for operation, the debugging area is small, the debugging difficulty is high, the shielding shell is easy to damage during polishing to influence the appearance, moreover, burrs generated after debugging and polishing and fragments of the metal conducting layer are not easy to clean, the performance is easy to cause abnormity, certain reliability risk exists, and the debugging yield is low; if the shielding shell is welded after direct debugging, due to the fact that the performance of the dielectric filter is greatly different before and after welding, repeated debugging is needed for many times, in addition, the polishing amount of the dielectric has a certain limit, the performance of the dielectric filter is poor due to repeated debugging for many times, and the debugging yield is reduced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a dielectric filter debugging tool which is low in debugging difficulty, high in yield, simple to operate and accurate in result.

In order to achieve the above object, the present invention adopts a technical solution that a dielectric filter debugging tool includes:

the bottom plate is used for placing a dielectric block of the dielectric filter, and is preferably made of brass material;

the fixing component is used for fixing the medium block on the bottom plate;

the test cable is used for connecting the medium block and the tester;

the fixed assembly comprises a positioning plate arranged on the bottom plate, a horizontal fixing piece capable of moving horizontally and a vertical fixing piece capable of moving up and down, a positioning groove matched with the medium block is formed in one side wall of the positioning plate, the horizontal fixing piece can move towards the direction close to or far away from the notch of the positioning groove, the vertical fixing piece is located above the positioning groove, and when the vertical fixing piece moves downwards and tightly abuts against the medium block in the positioning groove, the vertical fixing piece forms a shielding shell of the medium filter.

Preferably, the vertical fixing piece comprises a fixing block and an extension plate which vertically extends downwards from the end part, far away from the horizontal fixing piece, of the fixing block, when the vertical fixing piece abuts against the medium block, the bottom wall of the fixing block is attached to the upper surface of the medium block, and a gap is formed between the extension plate and the surface, far away from the horizontal fixing piece, of the medium block.

Further preferably, the middle of the lower bottom surface of the extension plate protrudes downwards to form a protrusion matched with the blind groove in the bottom plate, and when the vertical fixing piece moves downwards to abut against the dielectric block in the positioning groove, the protrusion abuts against the conductive rubber strip filled in the blind groove.

Further preferably, the positioning plate is provided with an avoiding groove for the protrusion to pass through.

Further preferably, the avoiding groove is communicated with the positioning groove.

Further preferably, the extension plate is movable in a horizontal direction to adjust the size of the gap.

Preferably, the projection of the horizontal fixing piece in the vertical direction is concave, and when the horizontal fixing piece abuts against the medium block, the horizontal fixing piece and the positioning groove wrap the periphery of the medium block.

Preferably, the test cable is located below the bottom plate and connected with an SMA connector inserted on the bottom plate, and when the dielectric block is located in the positioning groove, an elastic pin at the top of the SMA connector is in contact with an input/output electrode of the dielectric block.

Preferably, the tool further comprises a driving assembly, and the driving assembly comprises a first air cylinder for driving the horizontal fixing piece to move, a second air cylinder for driving the vertical fixing piece to move, and a pneumatic valve for controlling the first air cylinder and the second air cylinder to act.

Further preferably, the frock still includes the support frame, the support frame includes support column, horizontal support plate, vertical support plate and horizontal extension roof beam, the support column be used for with the bottom plate supports in the horizontal support plate, vertical support plate is located one side of bottom plate and with horizontal support plate is connected perpendicularly, horizontal extension roof beam pass through connecting bolt fixed connection in the top of vertical support plate, be provided with on the horizontal extension roof beam and be used for the waist type hole that connecting bolt passed, the extending direction in waist type hole is on a parallel with horizontal fixing spare's moving direction.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the invention provides a dielectric filter debugging tool, which comprises a bottom plate for placing a dielectric block, a fixing component for fixing the dielectric block, and a test cable for connecting the dielectric block and a tester, wherein the fixing component comprises a positioning plate arranged on the bottom plate, a horizontal fixing piece capable of moving horizontally and a vertical fixing piece capable of moving up and down, a positioning groove matched with the dielectric block is formed in one side wall of the positioning plate, the dielectric block can be conveniently fixed and debugged by enabling the horizontal fixing piece to move towards or away from the notch of the positioning groove, the vertical fixing piece is positioned above the positioning groove, when the vertical fixing piece moves downwards and tightly abuts against the dielectric block in the positioning groove, the vertical fixing piece forms a shielding shell of the dielectric filter, the performance of the dielectric filter can be detected by simulating the shielding shell, and a larger surface area can be exposed for debugging by enabling the vertical fixing piece to move up and down, the debugging difficulty is small, the yield is high, the operation is simple, and the result is accurate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention.

Fig. 2 is an enlarged perspective view of the vertical fixing member of fig. 1.

Fig. 3 is an enlarged perspective view of the base plate of fig. 1.

Fig. 4 is an enlarged perspective view of the positioning plate in fig. 1.

Fig. 5 is an enlarged perspective view of the horizontal fixing member of fig. 1.

Fig. 6 is an enlarged perspective view of the horizontally extending beam of fig. 1.

Wherein:

10. a support frame; 11. a support pillar; 12. a horizontal support plate; 13. a vertical support plate; 14. a horizontally extending beam; 141. a kidney-shaped hole; 20. a base plate; 21. a blind groove; 22. mounting holes; 23. an elastic pin needle; 31. positioning a plate; 311. positioning a groove; 312. an avoidance groove; 32. a horizontal fixing member; 33. a vertical fixing member; 331. a fixed block; 332. an extension plate; 333. a protrusion; 334. a window; 41. a first cylinder; 42. a second cylinder; 43. a first pneumatic valve; 50. and testing the cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 6, the dielectric filter debugging tool provided by the present invention includes: support frame 10, bottom plate 20, fixed subassembly, drive assembly and test cable 50, wherein, support frame 10 includes support column 11, horizontal support plate 12, vertical support plate 13 and horizontal extension roof beam 14, support column 11 has four, be located four edges of bottom plate 20 bottom respectively, support column 11 is used for supporting bottom plate 20 on horizontal support plate 12, vertical support plate 13 is located the rear side of bottom plate 20 and is connected perpendicularly with horizontal support plate 12, horizontal extension roof beam 14 passes through connecting bolt fixed connection at the top of vertical support plate 13 and extends forward.

The plane of the bottom plate 20 is parallel to the horizontal plane, the upper surface of the bottom plate 20 is used for placing the dielectric blocks of the dielectric filter, the bottom plate 20 is made of a metal material with excellent electrical conductivity, and in the embodiment, the bottom plate 20 is made of a brass material.

The fixing component is used for fixing the medium block on the bottom plate 20, specifically, the fixing component comprises a positioning plate 31 arranged on the bottom plate 20, a horizontal fixing member 32 capable of horizontally moving and a vertical fixing member 33 capable of vertically moving, a positioning groove 311 matched with the medium block is arranged on the rear side wall of the positioning plate 31, the horizontal fixing member 32 can move back and forth in the direction close to or far away from the notch of the positioning groove 311, when the medium block is placed on the bottom plate 20 and positioned in the positioning groove 311, the medium block can be abutted against the groove wall of the positioning groove 311 through the back and forth movement of the horizontal fixing member 32, so as to conveniently debug the medium block, in the embodiment, the projection of the horizontal fixing member 32 in the up and down direction is in a concave shape, when the horizontal fixing member 32 abuts against the medium block, the horizontal fixing member 32 and the positioning groove 311 wrap the periphery of the medium block, when the vertical fixing member 33 moves downwards to abut against the dielectric block in the positioning groove 311, the vertical fixing member 33 forms a shielding shell of the dielectric filter, the forming of the shielding shell means that the appearance structure of the vertical fixing member 33 is designed according to the size of the shielding shell of the actual filter, the vertical fixing member 33 is made of the same type of material as the shielding shell, when the vertical fixing member 33 abuts against the dielectric block, the shielding shell is welded on the dielectric block equivalently, and the debugging effect under the condition is infinitely close to the debugging effect after the shielding shell is welded.

The driving assembly includes a first cylinder 41 for driving the horizontal fixing member 32 to move, a second cylinder 42 for driving the vertical fixing member 33 to move, and an air-operated valve for controlling the operations of the first cylinder 41 and the second cylinder 42, in this embodiment, the first cylinder 41 is provided on the rear side wall of the base plate 20, the first cylinder 41 extends in the front-rear direction, the end of the cylinder rod of the first cylinder 41 is connected to the horizontal fixing member 32, the second cylinder 42 is provided at the front end of the horizontally extending beam 14, the second cylinder 42 extends in the up-down direction, the end of the cylinder rod of the second cylinder 42 is connected to the vertical fixing member 33, the air-operated valve includes a first air-operated valve 43 for controlling the operation of the first cylinder 41 and a second air-operated valve (not shown in the figure) for controlling the operation of the second cylinder 42, the first air-operated valve 43 is a button valve, the first air-operated valve 43 is provided on the, the second air cylinder 42 is connected with the second pneumatic valve through two air pipes and controls the action of the second pneumatic valve through a foot switch, thereby controlling the vertical fixing member 33 to move up and down.

In this embodiment, the vertical fixing member 33 includes a fixing block 331 and an extending plate 332 vertically extending downward from a front end of the fixing block 331, when the vertical fixing member 33 abuts against the dielectric block, a bottom wall of the fixing block 331 is attached to an upper surface of the dielectric block, the extending plate 332 has a gap with a front surface of the dielectric block, the gap affects a frequency of the dielectric filter, and a size of the gap is the same as a size of a gap corresponding to the dielectric block after the shielding case is actually welded.

In this embodiment, the extension plate 332 can move along the front-back direction, specifically, the horizontally extending beam 14 is provided with a waist-shaped hole 141 for the connecting bolt to pass through, the extending direction of the waist-shaped hole 141 is parallel to the moving direction of the horizontal fixing member 32, that is, the waist-shaped hole 141 extends along the front-back direction, when the connecting bolt is unscrewed, the horizontally extending beam 14 can move back and forth relative to the vertical support plate 13 through the waist-shaped hole 141, so as to drive the vertical positioning member 33 to move through the second cylinder 42, and further adjust the size of the gap between the extension plate 332 and the front surface of the dielectric block, under normal conditions, because the size of the dielectric filter shielding shell is fixed, the gap can not be adjusted any more after being adjusted to the corresponding size.

In order to avoid the gap adjustment, in this embodiment, the middle of the lower bottom surface of the extension plate 332 protrudes downward to form a protrusion 333 matched with the blind slot 21 on the bottom plate 20, and when the vertical fixing member 33 moves downward to abut against the dielectric block in the positioning slot 311, the protrusion 333 is inserted into the blind slot 21 and abuts against the conductive rubber strip filled in the blind slot 21, so as to ensure that the dielectric filter has a good grounding effect.

In order to facilitate the insertion of the protrusion 333 into the blind groove 21, the positioning plate 31 is provided with a relief groove 312 for the protrusion 333 to pass through, and in the present embodiment, the relief groove 312 is communicated with the positioning groove 311 for facilitating the processing.

In this embodiment, three windows 334 for detecting and debugging are further formed in the extension plate 332, and the polishing tool can directly polish the metal conductive layer on the front surface of the dielectric block through the windows 334 to complete debugging; if there is the debugging blind area, can lift up vertical mounting 33 through second cylinder 42 through the prejudgement to the figure in the debugging process, can have great space to polish the debugging like this, and vertical mounting 33 moves down again after the debugging is accomplished and supports tight medium piece and debug on next step, convenient operation.

The test cable 50 is used for connecting the dielectric block and the tester, the tester is a net, in this embodiment, a mounting hole 22 for mounting the SMA connector is formed in the bottom plate 20, the mounting hole 22 is a through hole, the size of the mounting hole 22 is matched with the SMA connector, the SMA connector is inserted into the mounting hole 22, an elastic pin 23 at the top of the SMA connector protrudes upwards out of the upper surface of the bottom plate 20, the test cable 50 is located below the bottom plate 20, one end of the test cable 50 is connected with a threaded interface at the bottom of the SMA connector, the other end of the test cable 50 is connected with the tester, when the dielectric block is located in the positioning groove 311, the elastic pin 23 of the SMA connector is in contact with an input/output electrode of the dielectric block, so that the performance of the dielectric filter can be tested through the tester.

According to the dielectric filter debugging tool, the horizontal fixing piece can move towards the direction close to or far away from the notch of the positioning groove, the dielectric block can be conveniently fixed for debugging, the vertical fixing piece is located above the positioning groove, when the vertical fixing piece moves downwards to abut against the dielectric block in the positioning groove, the vertical fixing piece forms the shielding shell of the dielectric filter, the performance effect after the shielding shell and the dielectric block are welded can be simulated, the dielectric block can expose a larger surface area for debugging through the up-and-down movement of the vertical fixing piece, the debugging difficulty is small, the yield is high, the operation is simple, and the result is accurate. After the dielectric block is debugged by the method, the debugging area of the dielectric block is cleaned, the shielding shell and the dielectric block are welded by a special high-precision tool, the clearance between the welded shielding shell and the front end of the dielectric block is consistent with that of the debugging tool, and the error is as small as possible, so that better debugging performance and product quality are realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.