Special tool for finishing end face of cable connector

Abstract

The utility model discloses a special tool for finishing the end face of a cable connector, which comprises a tool main body, a rotating transmission shaft and a milling cutter are arranged in the tool main body, the transmission end of the transmission shaft extends out of the tool main body, the linkage end of the transmission shaft is connected with the milling cutter, a positioning jacket is arranged on the tool main body, and the milling cutter extends into the positioning jacket. The tool has the beneficial effects that the tool is perfectly matched with the boundary dimension of the SBMA / JF type connector horn sleeve, and the finishing flatness of the end surfaces of a shielding layer and the horn sleeve cannot be influenced even if the position is shifted; by means of the designed special rotary tool bit, only the shielding layer and the end face of the horn sleeve can be effectively trimmed, and cable media and an inner conductor are not damaged. The tool needs to be used in cooperation with a handheld electric tool, phase repairing of the connector can be conveniently completed on an external field and equipment, and the phase repairing efficiency is improved by more than three times on the premise that the overall quality of the cable assembly is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of phase repair and assembly of SBMA / JF radio frequency phase-stable cable components, and specifically relates to a special tool for trimming the end face of a cable connector, which can achieve the purpose of fast and high-quality phase repair of this type of radio frequency phase-stable cable without the need for desoldering a horn sleeve. Background Art

[0002] When laying RF phase-stable cables on equipment, they generally go through complex laying paths and directions. After bending and forming, the mechanical phase of the entire batch of cables will drift to varying degrees. After multiple batches of actual measurements, the entire batch of cables cannot meet the product index requirements due to phase drift, which requires phase repair to achieve the overall phase index. The number of RF phase-stable cables that need to be repaired is as many as XXX. If the traditional phase repair method is used, the workload of repairing the phase is huge! This requires the development of a tooling that subverts the traditional phase repair method to achieve fast and high-quality phase repair.

[0003] Current solution:

[0004] 1. For cables that need to be trimmed to a length of >2mm based on the reference cable: Desolder the connector horn sleeve----Use a rotary cutter to trim the cable outer sheath and shielding layer to the required size-----Put on the horn sleeve, inner conductor, and assemble-----Test----Pass----Disassemble----Weld the horn sleeve, inner conductor, and assemble-----Retest (If unqualified, repeat the above steps until qualified).

[0005] 2. For cables that need to be trimmed to a length of less than 2mm based on the reference cable: cut off the outer sheath of the cable ----- cut the horn sleeve back according to the required size ----- use a blade to cut off the excess shielding layer to be flush with the end face of the horn sleeve ----- weld the inner conductor ----- test ----- pass (if unqualified, repeat the above steps until qualified).

[0006] Based on the two current repair methods, a lot of time is needed to trim the horn sleeve and shielding layer. Especially the second method is time-consuming and labor-intensive and the flatness of the cable end face is not ideal. Therefore, there is an urgent need for tooling to solve the quality and speed of trimming the horn sleeve and shielding layer and improve the efficiency of phase repair. Utility Model Content

[0007] The utility model aims to provide a special tool for trimming the end face of a cable connector, thereby solving the problem that the existing cable connector phase trimming method is time-consuming and laborious.

[0008] The purpose of the utility model is achieved through the following technical solutions:

[0009] A special tool for trimming the end face of a cable connector comprises a tool body, wherein a rotating transmission shaft and a milling cutter are arranged inside the tool body, the transmission end of the transmission shaft extends out of the tool body, the linkage end of the transmission shaft is connected to the milling cutter, a positioning sleeve is arranged on the tool body, and the milling cutter extends into the positioning sleeve.

[0010] Furthermore, the tooling body comprises a large sleeve body and a small sleeve body, the large sleeve body is connected to the positioning sleeve, the small sleeve body is fixedly sleeved in the large sleeve body, and the transmission shaft and the milling cutter are rotatably sleeved in the small sleeve body.

[0011] Furthermore, a bearing is provided between the small sleeve body and the transmission shaft.

[0012] Furthermore, the large sleeve body and the small sleeve body are fixed by a locking mechanism, the small sleeve body is connected to a locking nut, the locking nut limits the bearing in the small sleeve body, and the small sleeve body and the locking nut are fixed by a locking mechanism.

[0013] Furthermore, the transmission shaft is connected to the milling cutter through a linkage mechanism.

[0014] Furthermore, the transmission end of the transmission shaft is provided with a clamping plane located on the side.

[0015] Furthermore, the cutting end of the milling cutter is a trimming ring, and the end surface of the trimming ring is provided with a cutting edge.

[0016] Furthermore, a positioning wall surface for circumferentially limiting the connector is formed in the positioning sleeve, a positioning end surface for axially limiting the connector is formed in the positioning sleeve, and the cutting edge of the milling cutter is located at the positioning end surface.

[0017] Furthermore, an observation groove penetrating from inside to outside is formed on the positioning sleeve.

[0018] Furthermore, it also includes an electric wrench, and the transmission end of the transmission shaft is installed on a detachable rotating head of the electric wrench.

[0019] Beneficial effects of the utility model:

[0020] 1. The tooling perfectly matches the external dimensions of the SBMA / JF connector horn sleeve. Even if the position is offset, it will not affect the flatness of the shielding layer and the horn sleeve end surface finishing.

[0021] 2. Through the specially designed rotating cutter head, only the shielding layer and the end face of the horn sleeve can be effectively trimmed without damaging the cable medium and inner conductor.

[0022] 3. This tooling needs to be used in conjunction with a handheld power tool, which can be used to easily complete the repair of this type of connector in the field or on equipment, and the repair efficiency can be increased by more than 3 times while ensuring the overall quality of the cable assembly.

[0023] The aforementioned main scheme of the utility model and its further options can be freely combined to form multiple schemes, all of which are schemes that can be adopted and protected by the utility model; and in the utility model, (non-conflicting options) options and other options can also be freely combined. After understanding this scheme, those skilled in the art can understand that there are many combinations based on the existing technology and common knowledge, all of which are technical schemes to be protected by the utility model, and they are not exhaustively listed here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the front view of the structure of the utility model.

[0025] Figure 2 yes Figure 1 A-direction view.

[0026] Figure 3 It is a top view of the structure of the utility model.

[0027] In the figure: 1- tooling body, 2- transmission shaft, 3- milling cutter, 4- positioning sleeve; 101- large sleeve body, 102- small sleeve body, 103- locking nut, 104- locking mechanism, 105- bearing, 106- linkage mechanism, 201- clamping plane, 301- cutting edge, 401- positioning wall, 402- positioning end face, 403- observation groove. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific embodiments and drawings.

[0029] In the traditional way, the mechanical phase of the cable assembly of SBMA / JF type connector + 3449 cable will drift after being bent and formed through the complex system laying path, and the overall phase index needs to be retested and repaired to meet the system index requirements. After retesting, the entire batch of cables needs to be used as the standard to repair other cables that exceed the index requirements. The cables need to be trimmed to different lengths to meet the overall phase index, that is, the horn sleeve and inner conductor of the SBMA / JF type connector need to be reassembled according to the length that needs to be trimmed.

[0030] This embodiment designs and develops a fast and efficient electric rotary cutting tool, which uses a combination of tools to rotate at high speed to cut the shielding layer without damaging the dielectric and inner conductor, thereby achieving the purpose of quickly and evenly cutting off the shielding layer to achieve the purpose of repairing the phase. According to the external dimensions of the horn sleeve of this type of connector, the horn sleeve needs to be effectively clamped; the end surface of the shielding layer / horn sleeve needs to be flat and cannot cause the dielectric body and inner conductor to be loose.

[0031] Example 1

[0032] refer to Figure 1 to Figure 3As shown, a special tool for trimming the end face of a cable connector includes a tool body 1 (forming a main structure for installing other components), a transmission shaft 2 (cooperating with an electric tool to smoothly, safely and quickly transmit power to a milling cutter), a milling cutter 3 (used to effectively trim the end face of a shielding layer and a horn sleeve), a positioning sleeve 4 (for positioning and fixing the horn sleeve of an SBMA / JF type connector) and an electric wrench (providing power).

[0033] A rotating transmission shaft 2 and a milling cutter 3 are arranged in the tooling body 1. The transmission end of the transmission shaft 2 extends out of the tooling body 1, and the linkage end of the transmission shaft 2 is connected to the milling cutter 3. The transmission end of the transmission shaft 2 is driven by an electric wrench to realize the rotation of the transmission shaft 2, and the milling cutter 3 is driven to rotate synchronously through the linkage end. A positioning sleeve 4 is arranged on the tooling body 1, and the milling cutter 3 extends into the positioning sleeve 4. The positioning sleeve 4 positions and limits the connector horn sleeve, and then the rotating milling cutter 3 cuts the connector shielding layer and the end face of the horn sleeve to achieve flat trimming.

[0034] Specifically, the tool body 1 includes a large sleeve 101 and a small sleeve 102, the left end of the large sleeve 101 is integrally connected with the positioning sleeve 4, and the small sleeve 102 is fixedly sleeved in the large sleeve 101. Specifically, the left end of the small sleeve 102 is limited by the large sleeve 101, and the large sleeve 101 and the middle of the small sleeve 102 are fixed by a locking mechanism 104, preferably using locking screws symmetrically arranged on both sides. The tool body 1 is divided into an upper part, the large sleeve is convenient for integral molding with the positioning sleeve, and the small sleeve is convenient for the arrangement and installation of the internal transmission shaft 2, etc.

[0035] The transmission shaft 2 and the milling cutter 3 are rotatably sleeved in the small sleeve body 102, and a bearing 105 is arranged between the small sleeve body 102 and the transmission shaft 2 to realize the rotation arrangement of the transmission shaft 2 in the small sleeve body 102. Specifically, two bearings 105 are arranged, and the bearing at the left end is limited by the small sleeve body 102, and the right end of the small sleeve body 102 is threadedly connected with the locking nut 103, and the locking nut 103 limits the bearing 105 at the right end in the small sleeve body 102. The small sleeve body 102 and the locking nut 103 are fixed by a locking mechanism 104, and preferably locking screws symmetrically arranged on both sides are used to ensure the stability and reliability of the locking nut 103.

[0036] The linkage end of the transmission shaft 2 is connected to the linkage end of the milling cutter 3 through the linkage mechanism 106, and the linkage mechanism 106 is used to realize the power transmission between the transmission shaft 2 and the milling cutter 3. The transmission end of the transmission shaft 2 is provided with a clamping plane 201 located on the side, which facilitates the clamping action of the electric wrench on the transmission shaft 2 to improve the clamping stability during rotation.

[0037] The cutting end of the milling cutter 3 is a trimming ring, and the internal channel of the trimming ring facilitates the insertion of other connector components to ensure accurate positioning of the connector horn sleeve. The end face of the trimming ring is provided with a number of evenly arranged cutting edges 301, which are integrally formed with the trimming ring. The cutting edges 301 are used to directly act on the shielding layer of the connector horn sleeve to achieve the purpose of cutting and leveling.

[0038] A positioning wall 401 for circumferentially limiting the connector is formed inside the positioning sleeve 4 (i.e., the inner wall), and the positioning wall 401 is set on the outer periphery of the horn sleeve to achieve circumferential positioning of the connector. A positioning end face 402 for axially limiting the connector is formed inside the positioning sleeve 4, and the positioning end face 402 fits the end face of the horn sleeve to achieve axial positioning of the connector. The cutting edge 301 of the milling cutter 3 is located at the positioning end face 402, and the cutting edge 301 can be slightly higher than the positioning end face 402 to facilitate cutting. An observation groove 403 that runs through the inside and outside is formed on the positioning sleeve 4, and the observation groove 403 facilitates observation of the positioning and operation of the internal horn sleeve.

[0039] The transmission end of the transmission shaft 2 is installed on the detachable rotating head of the electric wrench. It is necessary to loosen the detachable rotating head first, then insert the transmission shaft 2 into the detachable rotating head, and then clamp the transmission shaft 2 with the detachable rotating head and hold it tightly. At this time, insert the connector horn sleeve into the positioning sleeve 4, turn on the electric wrench to realize the phase repair operation.

[0040] The working process of the utility model is as follows: the tool is connected to the electric tool through the transmission shaft, and the rotation direction of the milling cutter is adjusted (rotating to the right); the horn cover with the adjusted shielding layer size is put into the outer jacket, and the electric tool is started. It only takes 3 to 5 seconds to complete the work of trimming the shielding layer and leveling the horn cover.

[0041] The innovative features of this utility model:

[0042] (1) The specially designed rotating cutter head can effectively trim only the shielding layer and the end surface of the horn sleeve without damaging the cable medium and inner conductor, while ensuring the flatness of the shielding layer and the end surface of the horn sleeve.

[0043] (2) When repairing the cable assembly system of SBMA / JF type connector + 3449 cable, the shield layer and horn sleeve can be trimmed conveniently, quickly and reliably to achieve the purpose of rapid repair and improve work efficiency by more than 3 times.

[0044] (3) The present invention can be extended to the finishing and modification of the end faces of the horn sleeves and shielding layers of other connectors with similar structures.

[0045] The above basic examples and further optional examples of the utility model can be freely combined to form multiple embodiments, which are all embodiments that can be adopted and claimed for protection by the utility model. In the scheme of the utility model, each optional example can be arbitrarily combined with any other basic examples and optional examples.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A special tool for trimming the end face of a cable connector, comprising a tool body (1), Features: The tool body (1) is provided with a rotating transmission shaft (2) and a milling cutter (3); the transmission end of the transmission shaft (2) extends out of the tool body (1); the linkage end of the transmission shaft (2) is connected to the milling cutter (3); a positioning sleeve (4) is provided on the tool body (1); and the milling cutter (3) extends into the positioning sleeve (4).

2. The special tool for trimming the end face of a cable connector according to claim 1, Features: The tool body (1) comprises a large sleeve (101) and a small sleeve (102); the large sleeve (101) is connected to a positioning sleeve (4); the small sleeve (102) is fixedly sleeved in the large sleeve (101); and the transmission shaft (2) and the milling cutter (3) are rotatably sleeved in the small sleeve (102).

3. The special tool for trimming the end face of a cable connector according to claim 2, Features: A bearing (105) is provided between the small sleeve (102) and the transmission shaft (2).

4. The special tool for trimming the end face of a cable connector according to claim 3, Features: The large sleeve (101) and the small sleeve (102) are fixed via a locking mechanism (104); the small sleeve (102) is connected to a locking nut (103); the locking nut (103) limits the bearing (105) in the small sleeve (102); and the small sleeve (102) and the locking nut (103) are fixed via the locking mechanism (104).

5. The special tool for trimming the end face of a cable connector according to claim 1, Features: The transmission shaft (2) is connected to the milling cutter (3) via a linkage mechanism (106).

6. The special tool for trimming the end face of a cable connector according to claim 1, Features: The transmission end of the transmission shaft (2) is provided with a clamping plane (201) located on the side.

7. The special tool for trimming the end face of a cable connector according to claim 1, Features: The cutting end of the milling cutter (3) is a trimming ring, and the end surface of the trimming ring is provided with a cutting edge (301).

8. The special tool for trimming the end face of a cable connector according to claim 1, Features: The positioning sleeve (4) is formed with a positioning wall surface (401) for circumferentially limiting the connector, and the positioning sleeve (4) is formed with a positioning end surface (402) for axially limiting the connector, and the cutting edge (301) of the milling cutter (3) is located at the positioning end surface (402).

9. The special tool for trimming the end face of a cable connector according to claim 1 or 8, Features: The positioning sleeve (4) is formed with an observation groove (403) that penetrates inside and outside.

10. The special tool for trimming the end face of a cable connector according to claim 1, Features: It also comprises an electric wrench, wherein the transmission end of the transmission shaft (2) is mounted on a detachable rotating head of the electric wrench.

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