CN212303869U - Circulator centering mechanism - Google Patents

Abstract

The utility model discloses a circulator centering mechanism, including positioning seat, locating piece and driving piece, the positioning seat on be equipped with and put the positioning groove who is used for placing circulator chamber shell, three locating piece distributes in positioning groove's circumference and drives by the driving piece and use positioning groove to be close to or keep away from positioning groove as the center synchronization, the locating piece is the location end towards positioning groove's one end, the location end supports when the locating piece is close to positioning groove and leans on the ferrite substrate in circulator chamber shell, and the location serve the link assorted location breach groove of seting up with the center conductor in circulator chamber shell. Circulator centering mechanism make central conductor and ferrite substrate in the assembly for the strict centering of circulator chamber shell, effectively improve assembly quality, the packaging efficiency is high, assembly quality uniformity is good, can be applied to in the automated production, effectively improve the productivity.

Description

Circulator centering mechanism

Technical Field

The utility model relates to a production and processing technical field of circulator especially relates to a circulator centering mechanism.

Background

The circulator is a multi-port device which transmits incident waves entering any port of the circulator into the next port according to the direction sequence determined by the static bias magnetic field, and the circulator is characterized in that high-frequency signal energy is transmitted in a single direction. It controls the transmission of electromagnetic waves along a certain circular direction. The characteristic of unidirectional transmission of high-frequency signal energy is mainly used between the output end of a high-frequency power amplifier and a load, and plays the role of mutual independence and mutual isolation. The load impedance does not affect the working state of the power amplifier under the condition of change, even open circuit or short circuit, thereby protecting the power amplifier.

The circulator is generally provided with a laminated assembly inside a cavity shell, the laminated assembly comprises a central conductor, a plurality of laminated parts such as ferrite substrates positioned on the upper side and the lower side of the central conductor, and assembling gaps are formed among the central conductor, the ferrite substrates and the inner wall of the cavity shell, and the gaps between the parts and the inner wall of the cavity shell are different in size, so that position deviation is easy to occur during assembling, the central conductor and the ferrite substrates need to be strictly aligned during assembling, the concentricity of the central conductor and the ferrite substrates directly influences whether product indexes are qualified or not, the existing electronic equipment develops towards miniaturization, the circulator is smaller and smaller in size and has higher assembling difficulty, the concentricity of the central conductor and the ferrite substrates is difficult to guarantee in the existing assembling mode, the assembling precision is low, the consistency is poor, and the performance quality of the circulator is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve and the technical task who provides improve prior art, provide a circulator centering mechanism, solve the circulator among the prior art assembly quality poor, be difficult to ensure the assembly concentricity of center conductor and ferrite substrate, influence the problem of the performance of circulator.

For solving the above technical problem, the technical scheme of the utility model is that:

the utility model provides a circulator centering mechanism, includes positioning seat, locating piece and driving piece, the positioning seat on be equipped with and put the positioning groove who is used for placing circulator chamber shell, three locating piece distributes in positioning groove's circumference and drives by the driving piece and use positioning groove to be close to or keep away from positioning groove as the center is synchronous, the one end of locating piece orientation positioning groove is the location end, the location end supports when the locating piece is close to positioning groove and leans on the ferrite substrate in circulator chamber shell, and the location end on set up with circulator chamber shell in the link assorted location breach groove of center conductor. The circulator centering mechanism of the utility model firstly utilizes the positioning groove on the positioning seat to accurately place the circulator cavity shell, so that the circulator cavity shell has an accurate position reference, the three positioning blocks take the positioning groove as the center, namely the circulator cavity shell on the position reference as the center, then the three positioning blocks are synchronously close to the positioning groove and the positioning end is propped against the ferrite substrate, namely the three positioning blocks clamp the ferrite substrate to realize the positioning of the ferrite substrate, meanwhile, the notch groove on the positioning end is used for the insertion of the outwards protruded connecting end of the central conductor, the notch groove also forms the positioning function to the central conductor, the notch groove and the connecting end of the central conductor just reach the complete matching condition when the positioning end is propped against the ferrite substrate, finally, the central conductor and the ferrite substrate reach the strict centering, and the concentricity of the central conductor and the ferrite substrate is effectively ensured, ensure that the circulator that finally makes can reach qualified index, the utility model discloses compact structure, convenient to use effectively improves the packaging efficiency when guaranteeing the strict centering of center conductor and ferrite substrate to improve the assembly quality uniformity of product, improve the product yields, improve production economic benefits, can be applied to in the automated production, effectively improve the productivity.

Furthermore, the driving part is a three-jaw cylinder, the positioning block is respectively connected with three cylinder sliding blocks of the three-jaw cylinder, the moving synchronism of the positioning block is effectively guaranteed, the situation that the central conductor and the ferrite substrate are eccentric relative to the circulator cavity shell is avoided, and the assembly concentricity is guaranteed.

Furthermore, the positioning block is detachably connected with the cylinder sliding block, so that the positioning block can be conveniently replaced and maintained, the positioning blocks adaptive to different circulators can be replaced according to needs, and the device is flexible and good in applicability.

Furthermore, the positioning seat is connected to the three-jaw air cylinder, and a sliding groove for the air cylinder sliding block to pass through is formed in the positioning seat, so that the structure is compact, and the occupied space is small.

Furthermore, the positioning groove is also provided with a positioning hole matched with the PIN needle in the circulator cavity shell, so that the positioning accuracy of the circulator cavity shell is improved, the circulator cavity shell can be prevented from rotating in the circumferential direction, and the gap of the circulator cavity shell is ensured to be over against the path direction of the positioning block.

Furthermore, the positioning end comprises a plurality of positioning points which are used for being in contact with the ferrite substrate, and the positioning points are distributed at intervals along the circumferential edge of the ferrite substrate, namely, the connecting line of the positioning points is in an arc shape which is consistent with the circumference of the ferrite substrate, so that the positioning end can be attached to the circumferential edge of the ferrite substrate more accurately, and the positioning accuracy of the ferrite substrate is effectively improved when the three positioning blocks clamp the ferrite substrate.

Compared with the prior art, the utility model discloses the advantage lies in:

circulator centering mechanism earlier accurate positioning place circulator chamber shell, then the locating piece is simultaneously with ferrite substrate and center conductor centre gripping location, guarantee ferrite substrate and center conductor's concentricity, and three locating piece is close to the center in step, thereby guarantee ferrite substrate, center conductor are for the centering precision of circulator chamber shell, effectively improve assembly quality, ensure that the product index after the equipment is accomplished is qualified, packaging efficiency is high, assembly quality uniformity is good, improve the product yields, improve production economic benefits, can be applied to in the automated production, effectively improve the productivity.

Drawings

FIG. 1 is a schematic view of the overall structure of a circulator centering mechanism;

FIG. 2 is a schematic view of the circulator centering mechanism assembled into the circulator chamber housing;

FIG. 3 is a schematic view of the structure of the positioning portion cooperating with the center conductor and the ferrite substrate;

FIG. 4 is a schematic top view of the circulator centering mechanism;

FIG. 5 is an exploded view of the circulator;

fig. 6 is a schematic view of an assembly structure of the circulator.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses circulator centering mechanism can effectively ensure the central conductor and be located the assembly concentricity between the ferrite substrate of its downside for reach accurate assembly position relation between central conductor and ferrite substrate and the chamber shell, improve assembly precision and uniformity, ensure the quality of circulator.

As shown in fig. 1 to 6, a circulator centering mechanism mainly includes a positioning seat 1, a positioning block 2 and a driving element 3, wherein a positioning groove 11 for placing a circulator cavity shell a is formed in the center of the positioning seat 1, the shape of the positioning groove 11 is matched with that of the circulator cavity shell a, a positioning hole 12 matched with a PIN in the circulator cavity shell a is further formed in the positioning groove 11, the PIN is inserted into the positioning hole 12 to further improve the positioning accuracy, and circumferential rotational offset of the circulator cavity shell a in the positioning groove 11 is avoided, so that the centering accuracy of a central conductor and a ferrite substrate relative to the circulator cavity shell a can be guaranteed only when the circulator cavity shell a is located at a high-accuracy position reference;

in this embodiment, the circumferential wall surface of the circulator cavity shell a is uniformly provided with three notches at intervals, a positioning medium piece a2 is assembled in the circulator cavity shell a, a positioning medium piece a2 is provided with a convex part which protrudes from the notch on the wall surface of the circulator cavity shell a to the radial outer side, a PIN a1 is arranged on the convex part, the circulator cavity shell a is also provided with other laminated assemblies, the laminated assemblies comprise a central conductor a3, a ferrite substrate a4 and the like, and the connecting end of the central conductor a3 is in PIN needle joint connection;

the three positioning blocks 2 are distributed in the circumferential direction of the positioning groove 11 and are driven by the driving element 3 to synchronously approach or leave from the positioning groove 11 with the positioning groove 11 as the center, specifically, the moving path of the positioning block 2 is a linear path, and the moving paths of the three positioning blocks 2 intersect at the center of the positioning groove 11, that is, the moving paths of the three positioning blocks 2 intersect at the center of the circulator cavity shell a, in this embodiment, the moving path of the positioning block 2 is just opposite to the notch of the wall surface of the circulator cavity shell a, so that the included angle of the moving paths of the adjacent positioning blocks 2 is 120 °, one end of the positioning block 2 facing the positioning groove 11 is a positioning end 21, the positioning end 21 is inserted into the circulator cavity shell a from the notch of the wall surface of the circulator cavity shell a and abuts against the circumferential edge of the ferrite substrate a4 when the positioning block 2 approaches to the positioning groove 11, the three positioning blocks 2 synchronously operate to stably clamp and position the ferrite substrate a, the centers of the three positioning blocks 2 are the centers of the circulator cavity shell a, so that the ferrite substrate a4 is positioned to be concentric with the circulator cavity shell a, a uniform gap is formed between the ferrite substrate a4 and the inner wall of the circulator cavity shell a in the whole circumferential direction, the positioning end 21 is provided with a positioning notch groove 22 matched with the connecting end of the central conductor in the circulator cavity shell a, when the positioning end 21 abuts against the circumferential edge of the ferrite substrate a4, the connecting end of the positioning notch groove 22 and the central conductor a3 is also exactly matched completely, so that the central conductor a3 is also clamped and positioned by the three positioning blocks 2, thereby realizing the strict centering of the central conductor and the ferrite substrate during the assembly, effectively improving the assembly precision and consistency and ensuring the qualified product index.

The positioning end 21 comprises a plurality of positioning points for contacting the ferrite substrate a4, the positioning points are distributed at intervals along the circumferential edge of the ferrite substrate a4, so that the positioning points are distributed in an arc shape, when the three positioning blocks 2 clamp the ferrite substrate a4, the positioning end 21 has a plurality of contact points which are attached to the circumferential edge of the ferrite substrate a4, the positioning accuracy is improved, and meanwhile, the ferrite substrate a4 is prevented from being damaged due to the fact that excessive pressure is applied to the local part of the ferrite substrate a4, in the embodiment, the positioning end 21 is in a U-shaped structure, the middle of the U shape is a positioning notch groove 22 which is matched with the connecting end of the central conductor a3, and the two ends of the U shape are the positioning points which are contacted with the circumferential edge of the ferrite substrate a 4.

In order to ensure the action synchronism of the three positioning blocks 2, the driving part 3 adopts a three-jaw cylinder, the positioning blocks 2 are respectively connected with three cylinder sliding blocks 31 of the three-jaw cylinder, and the positioning blocks 2 are detachably connected with the cylinder sliding blocks 31, so that the maintenance and the replacement are convenient.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (6)

1. A circulator centering mechanism is characterized by comprising a positioning seat (1), a positioning block (2) and a driving piece (3), the positioning seat (1) is provided with a positioning groove (11) for placing the circulator cavity shell (a), the three positioning blocks (2) are distributed in the circumferential direction of the positioning groove (11) and are driven by the driving piece (3) to synchronously approach or keep away from the positioning groove (11) by taking the positioning groove (11) as the center, one end of the positioning block (2) facing the positioning groove (11) is a positioning end (21), the positioning end (21) is abutted against a ferrite substrate (a4) in the circulator cavity shell (a) when the positioning block (2) is close to the positioning groove (11), and the positioning end (21) is provided with a positioning notch groove (22) matched with the connecting end of the central conductor in the circulator cavity shell (a).

2. The circulator centering mechanism as claimed in claim 1, wherein the driving member (3) is a three-jaw cylinder, and the positioning block (2) is connected to three cylinder blocks (31) of the three-jaw cylinder.

3. Circulator centering mechanism according to claim 2, wherein the positioning block (2) is detachably connected to the cylinder block (31).

4. The circulator centering mechanism of claim 2, wherein the positioning seat (1) is connected to a three-jaw cylinder, and a sliding slot for the cylinder sliding block (31) to pass through is formed on the positioning seat (1).

5. Circulator centering mechanism according to any of claims 1 to 4, characterized in that the positioning recess (11) is further provided with a positioning hole (12) for PIN-fitting in the circulator chamber housing (a).

6. Circulator centering mechanism according to any of claims 1 to 4, characterized in that the positioning end (21) comprises a plurality of positioning points for contacting the ferrite substrate (a4), said positioning points being spaced along the circumferential edge of the ferrite substrate (a 4).

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