CN211605089U - Guide device for assembling spiral line and clamping rod - Google Patents

Abstract

The utility model relates to a vacuum electron product technology field provides a guider for assembly of helix and supporting rod, including the guide block, the guide block has the through-hole that can supply helix and supporting rod to pass, be equipped with the notch that corresponds with the supporting rod on the inner wall of through-hole. The utility model discloses in, helix and supporting rod pass guider again through the holder assembly back, and the last notch of guider plays the direction clamping effect to the clamping rod for the supporting rod can compress tightly the helix, so that follow-up supporting rod gets into the shell and carries out interference fit, thereby greatly promotes assembly efficiency and finished product reliability.

Description

Guide device for assembling spiral line and clamping rod

Technical Field

The utility model relates to a vacuum electron product technology field especially provides a guider that is used for helix and supporting rod assembly.

Background

The traveling wave tube is an electronic device widely used in national defense and national economy, and has good power, frequency band and gain performance. The high-frequency structure in the traveling wave tube is a core device in the traveling wave tube, and plays a role in reducing the phase velocity of electromagnetic waves, so that electrons and the electromagnetic waves can effectively interact. The current high frequency structure generally comprises a tube shell, a clamping rod and a spiral line. Because helix and supporting rod are interference fit with the assembly of tube, and require extremely high to the assembly for the assembly of helix and supporting rod is very difficult, and the yields is extremely low, and needs to drop into a large amount of labours, and is inefficient, and the product uniformity is low, leads to the finished product reliability to hang down.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a guider for assembly of helix and supporting rod aims at solving among the prior art assembly of helix and supporting rod very difficult, the technical problem that the yields is extremely low.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a guider for helix and supporting rod assembly, includes the guide block, the guide block has the through-hole that can supply helix and supporting rod to pass, be equipped with the notch that corresponds with the supporting rod on the inner wall of through-hole.

Further, the distance from the notch wall to the central axis of the through hole is smaller than the distance from the outer wall of the clamping rod to the central axis of the through hole.

Further, the number of the notches is plural, corresponding to the number of the clamping rods.

Further, the sectional shape of the notch is matched with that of the clamping rod.

Further, a plurality of the notches are evenly distributed at intervals along the inner wall of the through hole.

Further, the number of the notches is three.

Further, the guide block is of a square plate-shaped structure in cross section.

The utility model has the advantages that:

the utility model discloses in, helix and supporting rod pass guider again through the holder assembly back, and the last notch of guider plays the direction clamping effect to the clamping rod for the supporting rod can compress tightly the helix, carries out interference fit when so that follow-up supporting rod gets into the tube, thereby greatly promotes assembly efficiency and finished product reliability.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a guiding device and a pre-assembly jig for assembly of a spiral line and a clamping rod according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a guiding device for assembling a spiral line and a clamping rod according to an embodiment of the present invention;

wherein, in the figures, the respective reference numerals:

10-a guide; 11-a guide block; 12-a through hole; 13-notches; 20-a cage; 30-helix; 40-clamping the rods.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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 thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, an embodiment of the present invention provides a guiding device 10 for assembling a spiral line and a clamping rod, for cooperating with a holder 20 of the spiral line 30 and the clamping rod 40, the guiding device includes a guiding block 11, the guiding block 11 has a through hole 12 for the spiral line 30 and the clamping rod 40 to pass through, and a notch 13 corresponding to the clamping rod 40 is disposed on an inner wall of the through hole 12.

The embodiment of the utility model provides an in, helix 30 and supporting rod 40 pass guider 10 again through 20 assembly backs of holder, and notch 13 on guider 10 plays the direction clamping action to clamping rod 40 for supporting rod 40 can compress tightly helix 30, so that follow-up supporting rod 40 gets into the tube and carries out interference fit, thereby greatly promotes assembly efficiency and finished product reliability.

Specifically, in this embodiment, the guide block 11 is a plate-shaped structure with a square cross section, the through hole 12 is opened in the center of the guide block 11, and the number of the notches 13 formed on the inner wall of the through hole 12 corresponds to the number of the clamping rods 40, that is, each notch 13 is correspondingly provided with one clamping rod 40. In the present embodiment, there are three clamping rods 40, and therefore, there are three notches 13. Since the three clamping rods 40 are uniformly arranged along the circumference of the holder 20, the three notches 13 are also uniformly spaced along the inner wall of the through-hole 12.

Furthermore, to allow the gripping shank 40 to be better positioned within the slot 13, the cross-sectional shape of the slot 13 also substantially matches the cross-sectional shape of the gripping shank 40. In this embodiment, the cross-section of the clamping bar 40 is rectangular, and the cross-section of the notch 13 is also rectangular. Of course, when the shape of the clamping bar 40 is changed, the shape of the notch 13 is also adjusted accordingly.

Meanwhile, in the present embodiment, the distance from the wall of each notch 13 to the central axis of the through hole 12 is smaller than the distance from the outer wall of the clamping rod 40 to the central axis of the through hole 12. That is, the degree of depth of each notch 13 is less than the thickness of clamping rod 40, thus, when clamping rod 40 was arranged in notch 13, notch 13 inwards played the effect of compressing tightly clamping rod 40, thereby clamping rod 40 was again applyed the helix 30 at the middle part with the packing force, and like this, three clamping rod 40 with press from both sides and locate between the three clamping rod 40 helix 30 tightly with closely hold tightly form wholly, clamping rod 40 and helix 30 play the guide effect when guider 10, thereby made things convenient for follow-up clamping rod 40 to get into the tube greatly and carried out interference fit, greatly promote assembly efficiency and finished product reliability.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (7)

1. The utility model provides a guider that is used for helix and clamping rod assembly which characterized in that: the clamping device comprises a guide block, wherein the guide block is provided with a through hole for a spiral line and a clamping rod to pass through, and a notch corresponding to the clamping rod is formed in the inner wall of the through hole.

2. The guide for the assembly of a helix and a clamping bar according to claim 1, wherein: the distance from the notch wall to the central axis of the through hole is less than the distance from the outer wall of the clamping rod to the central axis of the through hole.

3. The guide for the assembly of a helix and a clamping bar according to claim 1, wherein: the number of the notches is multiple and corresponds to the number of the clamping rods.

4. The guide for the assembly of a helix and a clamping bar according to claim 1, wherein: the cross-sectional shape of the notch is matched with that of the clamping rod.

5. The guide for the assembly of a helix and a clamping bar according to claim 3, wherein: the notches are uniformly distributed at intervals along the inner wall of the through hole.

6. The guide for the assembly of a helix and a clamping bar according to claim 5, wherein: the number of the notches is three.

7. The guide for the assembly of a helix and a clamping bar according to claim 1, wherein: the guide block is of a square plate-shaped structure.

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