Cutter for removing redundant tin on end face of cable in threaded sleeve hole

Abstract

The utility model relates to the field of manufacturing or repairing of wires and cables, and discloses a cutter for removing redundant tin on the end face of a cable in a threaded sleeve hole, which comprises a cutter handle and a cutter body. A first round hole is formed in the front end of the cutter handle; the knife body is provided with a second round hole used for reserving a space for a cable core wire part; the circular hole section of the cutter body is provided with a semi-circular-arc-shaped notch and a semi-circular-arc-shaped cutter head. The hollow knife handle is used for containing the knife body, the knife body is fixed through the threaded hole, it is guaranteed that the knife body cannot loosen or fall off, and disassembly and replacement are convenient after use; the cutter utilizes the notch and the cutter head to rotationally cut the end face of the cable. The device is reasonable in design, practical and convenient, aims to be more flexibly matched with a connecting structure of a cable and a thread sleeve, can efficiently remove redundant tin on the end face of the cable in a thread sleeve hole, and effectively reduces the risk of cable damage caused by cutting eccentricity.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable production scrape redundant equipment, especially in kind of tool that removes the redundant tin of cable end face in screw bush hole. BACKGROUND

[0002] The cable is opened and a layer of shielding layer is made of metal wire, tin is used to weld the scattered shielding layer together in order to prevent the scattering of the shielding layer, and the tin of the shielding layer is melted and flows to the left end face of the bush during the welding of the cable core wire and the jack, so that the tin needs to be removed by the tin scraping knife.

[0003] The existing tin scraping knife is designed in one piece of handle and head, made of stainless steel, and the head part is short and small, the spiral cutting edge is flat and narrow, the service life is limited, and the tin scraping knife cannot be used normally after wearing and consuming to a certain extent. Although the grinding table of the grinding tool can be positioned and ground, the service life is very limited. And it is very inconvenient to disassemble and replace, and it takes time and effort to reassemble and debug.

[0004] In summary, a tool for removing redundant tin on the end face of the cable in the screw bush hole is needed to ensure that the shielding layer of the cable remains tight after connection, the connection end face of the cable is clean, and the core wire part is fully exposed, so that the performance of the cable is stable and the conduction is good. The utility model discloses a tin scraping knife according to the above-mentioned needs. UTILITY MODEL CONTENTS

[0005] In order to solve the existing problems, the utility model provides a kind of tool for removing redundant tin on the end face of the cable in screw bush hole with reasonable design and practical convenient, to more flexible cooperation cable and screw connection structure, and can efficiently remove redundant tin on the end face of the cable in screw bush hole, and effectively reduce the risk of damaging cable caused by cutting eccentricity.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A kind of tool for removing redundant tin on the end face of the cable in screw bush hole, including handle and body;The front end of the handle is provided with first round hole;The body is provided with second round hole, for leaving space for cable core wire part;The round hole section of the body is provided with semicircular notch and semicircular head.

[0008] As a further improvement of the utility model, the end of the semicircular head is provided with a circular ring inclined surface, and the circular ring inclined surface and the horizontal section of the body form an angle of 15°±1°.

[0009] As a further improvement of the utility model, the material of the body is alloy material.

[0010] As a further improvement of the utility model, the cooperation gap between the outer diameter of the blade body and the inner sleeve of the screw sleeve is 0.01-0.03mm.

[0011] As a further improvement of the utility model, the hollow cavity in the round hole section of the blade body is cylindrical, and the inner diameter of the cylindrical column and the cooperation gap of the cable core part are 0.01-0.05mm.

[0012] As a further improvement of the utility model, the material of the blade handle is brass.

[0013] As a further improvement of the utility model, the knurl pattern is arranged on the outer surface of the blade handle for preventing slipping.

[0014] As a further improvement of the utility model, the elongated blade handle is further arranged, and the outer thread is arranged on the end of the blade handle away from the blade body for connecting with the inner threaded hole arranged on the elongated blade handle.

[0015] As a further improvement of the utility model, the plurality of screws are further arranged, the plurality of threaded holes are arranged on the round hole section of the blade handle for fixedly connecting the blade handle and the blade body, and the threaded holes on the round hole section of the blade handle penetrate the round hole, and the number of the threaded holes is half of the number of the screws.

[0016] As a further improvement of the utility model, the surface roughness of the annular inclined surface is less than 1.6.

[0017] The utility model has the following beneficial effects:

[0018] The utility model has the following beneficial effects:

[0019] Preferably, the specific annular inclined surface angle helps to control the tin scraping force, can more effectively remove the redundant tin layer on the cable end face, and reduces the damage to the cable end face base material.

[0020] Preferably, the alloy material has high strength, high hardness and wear resistance, can prolong the service life of the blade head, and maintains the sharp cutting edge.

[0021] Preferably, the knurl pattern increases the friction between the blade handle and the user's hand, reduces the slipping phenomenon in the use process, and improves the operation safety.

[0022] Preferably, the design of the elongated blade handle facilitates the operation in the deep place difficult to reach, improves the use range and flexibility of the tool.

[0023] Preferably, the shank is fixed with the blade body by threaded holes, ensuring that the blade body will not loosen or fall off during use, the number of threaded holes is half the number of screws, this design reduces the number of threaded holes, thereby simplifying the manufacturing process and reducing costs, while still maintaining sufficient connection strength; At the same time, the opposite screws at both ends facilitate bidirectional position adjustment, ensuring concentricity and clamping force, preventing use of force and slipping. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings described herein are for illustrative purposes only and in no way limit the scope of the present disclosure. In addition, the shapes and proportions of the components in the drawings are only illustrative and are used to help understand the present application, and are not specific limitations on the shapes and proportions of the components of the present application. In the drawings:

[0025] Figure 1 A tool structure for removing excess tin on the end face of a cable in a screw hole is shown in the figure;

[0026] Figure 2 A tool structure for removing excess tin on the end face of a cable in a screw hole is shown in the figure;

[0027] Wherein, 1. shank, 2. screw, 3. blade body, 4. semicircular arc-shaped blade head, 5. circular ring inclined surface, 6. knurling, 7. excess tin layer, 8. cable, 9. screw, 10. bushing, 11. cable core portion, 12. connecting element jack, 13. tin scraping knife. DETAILED DESCRIPTION

[0028] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0029] It should be noted that when an element is referred to as "disposed on" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1

[0032] like Figure 2 The tool shown is for removing excess solder from the cable end face inside a screw sleeve hole. It includes a handle 1, several screws 2, and a blade 3. The front end of the handle 1 has a first circular hole. Several threaded holes are provided on the circular hole section of the handle 1 for fixing the handle 1 and the blade 3 together. The threaded fixing involves placing the blade 3 inside the handle 1 to secure it, preventing the blade 3 from rotating and failing to achieve the desired solder removal purpose. This ensures the blade will not loosen or fall off during use and facilitates disassembly and replacement after use. The threaded holes on the circular hole section of the handle 1 penetrate the circular hole, and the number of threaded holes is half the number of screws 2. This design reduces the number of threaded holes, thereby simplifying the manufacturing process and reducing costs, while still maintaining sufficient connection strength. Simultaneously, the opposing screws at both ends facilitate bidirectional position adjustment, ensuring concentricity and clamping force, preventing inconvenience in applying force and slippage during use.

[0033] The blade 3 is Φ4.08 ± 0.01mm in diameter and 250mm in length; the inner diameter of the blade 3 and the inner bushing of the threaded sleeve is Φ4.1mm ± 0.03mm. The clearance between the outer diameter of the blade and the inner bushing of the threaded sleeve is 0.01~0.03mm, which ensures the effective removal of excess tin layer 7 from the cable end face. Otherwise, the residual tin layer will hinder the closure of the cable insulation sheath, and in severe cases, cause signal attenuation and current leakage.

[0034] The center hole on the cutter body 3 is Φ1.5+0.01mm and 10mm deep. The hollow cylindrical cutter body, utilizing a notch and annular bevel, performs rotary cutting on the cable end face, protecting the cable core from damage while efficiently removing excess solder from the remaining surface of the cable. The center hole can also be a through-hole penetrating the cutter body 3, drilled using electrical discharge machining (EDM), allowing for a longer length that can be ground later. The center hole in the cutter body 3 is used to set a cutting edge that avoids the cable core.

[0035] The round hole section of the blade body 3 is provided with a semicircular notch and a semicircular blade head 4; the end of the semicircular blade head 4 is provided with a circular ring bevel 5; the end of the semicircular blade head 4 is provided with a circular ring bevel 5, and the cross section is 15°±1°. This angle ensures the sharpness of the blade head, which can more effectively remove the excess tin layer on the cable end face, and avoid incomplete tin scraping or local over-deep scraping damage to the substrate.

[0036] The semicircular notch can be cut using a water jet, and the end circular ring bevel 5 can be polished using a grinding machine. The length difference between the start and end of the circular ring bevel 5 is 2mm, and smooth transition is required.

[0037] The material of the blade body 3 is an alloy material. The alloy material has high strength, high hardness and wear resistance, which can prolong the service life of the blade head while maintaining its sharp cutting edge. Compared with existing tools, it is more wear-resistant, has a longer service life, and the cost is controllable.

[0038] The hollow cavity in the round hole section of the blade body 3 is cylindrical, and the inner diameter of the cylindrical column and the cable core part is 0.01-0.05mm.

[0039] The material of the tool handle is brass, which is wear-resistant and corrosion-resistant, and durable.

[0040] The outer surface of the tool handle is provided with knurling 6, which increases the friction between the tool handle and the user's hand, reduces the slipping phenomenon during use, and improves the safety of operation.

[0041] The tool for removing excess tin on the cable end face in the screw hole can also include an extended handle, and the end of the tool handle 1 away from the blade body 3 is provided with external threads for connecting with the internal threaded hole provided on the extended handle. The extended handle is convenient for workers to take, can operate in deep places that are difficult to reach, and improves the use range and flexibility of the tool.

[0042] The surface roughness of the circular ring bevel 5 is less than 1.6. The tin scraping knife is used in rotation, and the top cutting edge works; the excess material dropped during tin scraping can be blown clean using an air gun, and the judgment standard after tin scraping is that the tin scraping surface is flat and has no excess material, but the surface roughness of the substrate surface and the substrate around the substrate is 1.6, which can be qualified.

[0043] During use, the blade body only needs to be inserted into the screw sleeve and rotated gently for 2-3 turns to achieve tin scraping. The tool has short use time and high efficiency, lays a foundation for subsequent cable production processes, and saves time.

[0044] As Figure 2As shown, the excess tin layer 7 is on the end face A-A of the cable 8; and the end face of the cable 8 is sleeved by the bushing 10 to form a hole containing the central protruding core wire part 11. In the assembly connection, the cable core wire part 11 extends into the connecting element socket 12, and the screw sleeve 9 is connected with the outer sleeve of the connecting element. The tin scraping knife 13 in the embodiment is used to scrape the excess tin layer 7 on the end face of the cable 8 before the cable 8 is assembled with the connecting element, so that the end face of the connecting element is flatly attached to the end face of the cable, and the outer sleeve is accurately buckled with the screw sleeve 9.

[0045] Specific use principle:

[0046] Check whether there is an excess tin layer on the end face of the cable in the screw sleeve hole;

[0047] After the knife 3 is installed in the hollow cylindrical segment of the knife handle 1, the screw 2 is screwed into the threaded hole of the circular hole segment to fix the knife body 3;

[0048] Hold the knife handle 1 and extend the knife body 3 to the end face of the cable in the screw sleeve hole, and rotate the circular ring bevel to contact the end face of the cable;

[0049] Repeat the above operation until the excess tin layer on the end face of the cable in the screw sleeve hole is completely removed.

[0050] The size of the embodiment is designed for the QJB SMA-JB3 cable product, but it should be noted that the tin scraping knife 13 is suitable for all cable assemblies that need to scrape tin, and the diameter and central circular hole of the tin scraping knife 13 can be replaced according to the size of the bushing 10 hole diameter and the core wire part 11 in the tin scraping process. The device structure of the utility model has good universality, can realize multi-project turnover and reuse, and has good economy.

[0051] In summary, the utility model part is simple, clear structure, utilize hollow handle to accommodate sword body, and use screw hole to fix, ensure that sword body will not loosen or fall off in the course of using, also convenient for use dismounting and refitting after using; Hollow cylindrical sword body, utilize the gap and the cutter head, carry out rotary cutting to the cable end face, can protect the core part of cable from being damaged, also can save the tin layer of cable surface redundancy. Specific ring inclined surface cutter head helps to control the scraping tin strength, can remove the redundant tin layer on the cable end face more effectively, at the same time reduces the damage to cable end face base material. Alloy material has high strength, high hardness and wear resistance, can prolong the service life of cutter head, at the same time keeps its sharp cutting edge. Knurling increases the friction between handle and user's hand, reduces the skidding phenomenon in the course of using, improves the safety of operation. The design of lengthened handle is convenient for operating in the deep place difficult to reach, improves the use range and flexibility of tool. The screw hole is half of the number of screws, this design reduces the number of screw holes, thereby simplifies the manufacturing process and reduces the cost, still keeps enough connecting strength, at the same time, two ends of opposite screws are convenient for bidirectional position adjustment, guarantees the concentricity and clamping strength, prevents the use of force and skidding.

[0052] The above embodiment is only one of the implementation manners capable of realizing the technical scheme of the utility model, and the range of the utility model claimed to be protected is not limited by the embodiment, but also includes the changes, replacements and other implementation manners easily thought of by any person skilled in the art within the technical range disclosed by the utility model. Although the embodiment of the utility model has been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiment without departing from the principles and spirits of the utility model, and the range of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tool for removing excess solder from the end face of a cable in a ferrule bore, characterized by: It includes a handle (1) and a blade body (3); the front end of the handle (1) is provided with a first round hole; the blade body (3) is provided with a second round hole for leaving space for cable core part; the round hole section of the blade body (3) is provided with a semicircular notch and a semicircular blade head (4).

2. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The end of the semicircular blade head (4) is provided with a circular ring bevel (5), and the circular ring bevel (5) and the transverse section of the blade body (3) form an angle of 15°±1°.

3. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The material of the blade body (3) is alloy material.

4. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The fitting gap between the outer diameter of the blade body (3) and the inner sleeve of the screw sleeve is 0.01-0.03mm.

5. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The hollow cavity in the round hole section of the blade body (3) is cylindrical, and the fitting gap between the inner diameter of the cylindrical column and the cable core part is 0.01-0.05mm.

6. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The material of the handle (1) is brass.

7. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, The outer surface of the handle (1) is provided with knurling (6) for preventing slipping.

8. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, It also includes an extended handle, and the end of the handle (1) away from the blade body (3) is provided with external threads for connecting with the internal threaded hole of the extended handle.

9. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 1, wherein, It also includes a plurality of screws; the round hole section of the handle (1) is provided with a plurality of threaded holes for fixedly connecting the handle (1) and the blade body (3); the threaded holes on the round hole section of the handle (1) penetrate the round hole, and the number of threaded holes is half of the number of screws (2).

10. The tool for removing excess solder from the end of a cable in a cable gland bore according to claim 2, wherein, The surface roughness of the circular ring bevel (5) is less than 1.6.

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