Precise rose reamer for coaxial semi-steel cable

Abstract

The utility model discloses a coaxial semi-steel cable precision chamfering tool which comprises a fixed tool apron, a connecting rod is arranged on one side of the fixed tool apron, four sets of fixing holes are formed in the outer wall of the fixed tool apron, the four sets of fixing holes are evenly distributed in the circumferential direction of the fixed tool apron, and the connecting rod is connected with the connecting rod. A fixing hole is formed in the fixing tool apron, a fixing screw is arranged in the fixing hole, four sets of alloy blades are arranged in the center of the interior of the fixing tool apron, and the four sets of alloy blades are symmetrically arranged in the circumferential direction of an inner cavity of the fixing tool apron. And the problems of eccentricity, rough chamfering surface and hemming in the chamfering process of the inner conductor of the semi-steel cable are effectively solved. The precise grinding of the alloy blade ensures that the cutting edge is sharp and free of burrs, so that the smoothness of the chamfer surface is ensured. In addition, the design also optimizes the return loss, and improves the mechanical phase stability of the semi-steel coaxial cable assembly.

Description

Technical Field

[0001] The utility model relates to the field of chamfering tools, and more specifically, to a precision chamfering tool for coaxial semi-rigid cables. Background Art

[0002] In the module interconnection and antenna array interconnection of microwave radars / radio frequency instruments and meters, semi-rigid coaxial cable assemblies have become the preferred solution for in-cabinet interconnection applications due to their excellent mechanical phase stability. In the manufacturing process of semi-rigid coaxial cable assemblies, the inner conductor of the cable can be directly used as the inner conductor of the connector male head, which simplifies the process and optimizes the return loss. This poses strict requirements for the chamfering of the inner conductor of the cable.

[0003] After retrieval, the existing patent authorization publication number: CN219874840U discloses a chamfering tool for the semi-conductive shielding layer of a cable, including a base, a pressing plate, and a blade; the base is U-shaped; one end of the pressing plate is hinged to one end of the base, and the other end of the pressing plate is detachably buckled and connected to the other end of the base. In the buckled state, the pressing plate and the base enclose a locking space adapted to the cable; the blade is fixed on the pressing plate and extends out of one side edge of the locking space. This product not only has the characteristics of convenient construction for cable accessories, labor-saving, fast installation speed, smooth and durable cutting, etc., but also brings guarantee to the safe operation of the cable and greatly improves the process and quality of cable joints. The utility model not only has a small volume, light weight, is not easy to be damaged, and can be reused, effectively solves various drawbacks existing in the current production of cable accessories, can greatly improve the construction speed and process quality, can be widely used in the production and installation of various cable accessories, and minimizes the labor intensity of workers. The inventor found the following problems in the process of implementing the utility model:

[0004] When the existing chamfering tool processes the inner conductor of a semi-rigid cable, there are technical problems such as eccentricity of the chamfer of the inner conductor of the semi-rigid cable, rough chamfer surface, and chamfer curling.

[0005] Therefore, a precision chamfering tool for coaxial semi-rigid cables is proposed to solve the above problems. Summary of the Utility Model

[0006] In order to overcome the above defects of the prior art, the utility model provides a precision chamfering tool for coaxial semi-rigid cables to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A precision chamfering tool for coaxial semi-rigid cables, comprising a fixed tool holder. One side of the fixed tool holder is provided with a connecting rod. Fixing holes are provided on the outer wall of the fixed tool holder. There are four groups of the fixing holes, and the four groups of fixing holes are evenly arranged along the circumferential direction of the fixed tool holder. Fixing screws are arranged inside the fixing holes. An alloy blade is arranged at the center inside the fixed tool holder. There are four groups of the alloy blades, and the four groups of alloy blades are symmetrically arranged along the circumferential direction of the inner cavity of the fixed tool holder.

[0008] Preferably, the fixed tool holder can be arranged on a special turntable through the connecting rod, so that the fixed tool holder drives the alloy blade to rotate, and its rotation speed is above 8000.

[0009] Preferably, a cutting edge is provided on one side of the alloy blade, and the cutting edge is processed by precision grinding, so that the cutting edge is sharp and free of burrs.

[0010] Preferably, the four groups of alloy blades are fixed in the fixed tool holder through the combination of the fixing screws and the fixing holes, and the cutting edges on the outer walls of the four groups of alloy blades are concentrically arranged.

[0011] Preferably, a semi-rigid cable is provided on one side of the fixed tool holder, and the alloy blade drives through the fixed tool holder to perform cutting operations on the semi-rigid cable.

[0012] Preferably, a connector body is provided on one side of the semi-rigid cable, a connector housing is provided on the outer wall of the connector body, and the inner conductor chamfer of the semi-rigid cable is cut by the alloy blade to fit the connector body.

[0013] The technical effects and advantages of the present utility model:

[0014] Compared with the prior art, through the symmetrical arrangement and precision grinding of the four alloy blades, the precision chamfering tool for coaxial semi-rigid cables ensures the precision symmetry after assembly, effectively avoids the eccentricity problem during the chamfering process. At the same time, the cutting edge is processed by precision grinding, which is sharp and free of burrs, ensuring the smoothness of the chamfered surface and solving the problem of rough chamfered surface caused by traditional chamfering tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional exploded structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the alloy blade of the present utility model.

[0017] Figure 3 It is a schematic diagram of the structure of the connector body and the connector housing of the present utility model.

[0018] Figure 4 This is a schematic diagram of the semi-rigid cable structure of the present utility model.

[0019] The reference numerals are: 1, fixed tool holder; 2, connecting rod; 3, fixing hole; 4, fixing screw; 5, alloy blade; 6, cutting edge; 7, semi-rigid cable; 8, connector body; 9, connector housing. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment 1

[0022] As shown in the attached Figures 1 to 4 The precision chamfering tool for coaxial semi-rigid cables shown includes a fixed tool holder 1. The fixed tool holder 1 is made of high-strength steel material, which plays a role in supporting the alloy blade 5 and at the same time standardizes the accuracy of the position of the alloy blade 5. A connecting rod 2 is provided on one side of the fixed tool holder 1. The connecting rod 2 is also made of high-strength steel material, so that the fixed tool holder 1 can be installed on a special turntable through the connecting rod 2 to achieve high-speed rotation. Such a configuration allows the alloy blade 5 to maintain high precision and high stability during the chamfering process. Fixing holes 3 are provided on the outer wall of the fixed tool holder 1. There are four groups of fixing holes 3, and the four groups of fixing holes 3 are evenly arranged along the circumferential direction of the fixed tool holder 1. Each fixing hole 3 must be precisely machined to reach the required size and shape to ensure a tight fit with the fixing screw 4, thereby providing sufficient supporting force and stability. At the same time, this uniform distribution of the fixing holes 3 ensures the balance of the fixing of the alloy blade 5 and avoids the eccentricity problem caused by uneven distribution of the fixing points. A fixing screw 4 is provided inside the fixing hole 3. The fixing screw 4 is made of hard alloy steel material to ensure that it will not loosen during high-speed rotation and cutting. During assembly, it is necessary to ensure that all the fixing screws 4 are evenly tightened to avoid unnecessary stress concentration, which may affect the service life of the alloy blade 5 or the chamfering quality. An alloy blade 5 is provided at the center of the inner part of the fixed tool holder 1. There are four groups of alloy blades 5, and the four groups of alloy blades 5 are symmetrically arranged along the circumferential direction of the inner cavity of the fixed tool holder 1. The alloy blade 5 is made of hard alloy material. The shape design of the alloy blade 5 needs to precisely match the chamfering requirements of the inner conductor of the semi-rigid cable 7. The cutting edge 6 of each group of alloy blades 5 needs to face the same center of the circle to ensure the concentricity and uniformity of the chamfering.

[0023] Embodiment 2

[0024] Based on Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as Figures 1 to 4 shown, and the details are described below:

[0025] As a preferred embodiment, the fixed tool holder 1 can be arranged on a special turntable through the connecting rod 2, so that the fixed tool holder 1 drives the alloy blade 5 to rotate, and its rotation speed is above 8000. Further, the high rotation speed significantly improves the chamfering speed, and at the same time, the cutting force is minimized, ensuring that the chamfer does not curl. Moreover, the cutting force generated by the high-speed rotation is small, which can reduce the potential damage to the inner conductor of the semi-steel cable during the chamfering process. The smaller cutting force means a more precise and cleaner chamfer.

[0026] As a preferred embodiment, a cutting edge 6 is arranged on one side of the alloy blade 5. The cutting edge 6 is processed by precision grinding to make the cutting edge 6 sharp and without burrs. Further, through precision grinding, the cutting edge 6 reaches extremely high smoothness and sharpness, enabling precise material removal during the chamfering process. This high-precision cutting reduces processing errors and ensures the processing quality of the inner conductor of the semi-steel cable 7. Since there are no burrs on the cutting edge 6, the surface of the inner conductor after chamfering is smoother, and almost no additional polishing or cleaning work is required, which reduces the post-processing steps and improves production efficiency.

[0027] As a preferred embodiment, the four alloy blades 5 are fixed in the fixed tool holder 1 through the combination of fixing screws 4 and fixing holes 3, and the cutting edges 6 on the outer walls of the four alloy blades 5 are concentrically arranged. Further, due to the concentric arrangement of the cutting edges 6 of the four alloy blades 5, it is ensured that during the chamfering process, the acting force of each alloy blade 5 on the inner conductor of the semi-steel cable 7 is consistent. This not only ensures the uniformity of the chamfer but also improves the processing accuracy, avoiding the problem of uneven processing caused by the position deviation of the alloy blade 5. This design makes the replacement work of the alloy blade 5 simple and fast. The fixing screw 4 allows for quick disassembly and reinstallation of the blade 5, facilitating maintenance by the staff.

[0028] As a preferred embodiment, a semi-steel cable 7 is arranged on one side of the fixed tool holder 1, and the alloy blade 5 performs cutting operations on the semi-steel cable 7 driven by the fixed tool holder 1. Further, placing the semi-steel cable 7 on one side of the fixed tool holder 1 can better control the cutting position and method, thereby reducing potential safety hazards during the operation. This design method avoids direct contact between the operator and the cutting area, reducing the safety risk during work. At the same time, since the fixed tool holder 1 can adapt to different specifications of the semi-steel cable 7 and can achieve chamfers of different sizes and shapes through adjustment, this flexibility enables the equipment to meet different production requirements.

[0029] As a preferred embodiment, a connector body 8 is provided on one side of the semi-rigid cable 7, and a connector housing 9 is provided on the outer wall of the connector body 8. The inner conductor of the semi-rigid cable 7 is chamfered by the alloy blade 5 so that the inner conductor of the semi-rigid cable 7 fits with the connector body 8. Further, the connector body 8 of this type of straight-weld connector is usually made of a highly conductive material such as copper or aluminum to ensure excellent electrical performance. The connector housing 9 is made of a high-strength plastic material to protect the internal connection from the influence of the external environment. By precisely controlling the chamfering process of the inner conductor of the semi-rigid cable 7, a tight fit between the inner conductor and the connector body 8 is ensured. This precise fit reduces the resistance at the connection and enhances the current transmission efficiency, thereby optimizing the electrical performance of the entire system.

[0030] The working process of the present utility model is as follows: First, the semi-rigid cable 7 is precisely placed at the designated position of the fixed tool holder 1 to ensure the correct position of the semi-rigid cable 7 for precise chamfering. The fixed tool holder 1 is installed on a special turntable through a connecting rod 2. When the equipment is started, the turntable drives the fixed tool holder 1 and the alloy blade 5 to rotate at a high speed, and the rotational speed can reach more than 8000 revolutions per minute. The sharp alloy blade 5 gently touches the surface of the inner conductor of the semi-rigid cable 7 to start the chamfering process. The surface of the inner conductor after chamfering is very flat and the angle is precise, which enables a perfect fit when the semi-rigid cable 7 is mated with the connector body 8. The above is the working principle of this coaxial semi-rigid cable precision chamfering tool.

Claims

1. Precision chamfering tool for coaxial semi-steel cable, comprising a fixed tool holder (1), characterized in that: On one side of the fixed tool holder (1), a connecting rod (2) is provided. On the outer wall of the fixed tool holder (1), fixing holes (3) are provided. There are four groups of the fixing holes (3), and the four groups of the fixing holes (3) are evenly arranged along the circumferential direction of the fixed tool holder (1). Inside the fixing holes (3), fixing screws (4) are provided. At the center of the inside of the fixed tool holder (1), alloy blades (5) are provided. There are four groups of the alloy blades (5), and the four groups of the alloy blades (5) are symmetrically arranged along the circumferential direction of the inner cavity of the fixed tool holder (1).

2. The precision chamfering tool for coaxial semi-steel cable according to claim 1, wherein: The fixed tool holder (1) can be arranged on a special turntable through the connecting rod (2), so that the fixed tool holder (1) drives the alloy blades (5) to rotate, and its rotation speed is above 8000.

3. The precision chamfering tool for coaxial semi-steel cables according to claim 1, characterized in that: On one side of the alloy blade (5), a cutting edge (6) is provided. The cutting edge (6) is processed by precision grinding, so that the cutting edge (6) is sharp and has no burrs.

4. The precision chamfering tool for coaxial semi-steel cables according to claim 3, wherein: The four groups of alloy blades (5) are fixed in the fixed tool holder (1) through the combination of the fixing screws (4) and the fixing holes (3), and the cutting edges (6) on the outer walls of the four groups of alloy blades (5) are concentrically arranged.

5. The precision chamfering tool for coaxial semi-steel cables according to claim 1, characterized in that: On one side of the fixed tool holder (1), a semi-rigid cable (7) is provided. The alloy blades (5) drive through the fixed tool holder (1) to perform a cutting operation on the semi-rigid cable (7).

6. The precision chamfering tool for coaxial semi-steel cables according to claim 5, characterized in that: On one side of the semi-rigid cable (7), a connector body (8) is provided. On the outer wall of the connector body (8), a connector housing (9) is provided. After the semi-rigid cable (7) is cut by the alloy blades (5), the inner conductor chamfer of the semi-rigid cable (7) is fitted with the connector body (8).

Images