JPH07250411A - Tool and method for terminating coaxial cable - Google Patents

Abstract

PURPOSE:To perform the enlarging work of outer conductor and the cutting work of insulator simultaneously by arranging an annular intermediate cutter part having the same width as an insulator for cutting the insulator in the peripheral direction at a position projecting forward in the axial direction from the outer cutter part on the radial inside thereof. CONSTITUTION:The tool 1 has an outer cutter part 5 having outer diameter substantially equal to that of the outer conductor 101 of a coaxial cable 100. The outer cutter part 5 comprises an annular cutter having a diameter decreasing toward the forward end of the tool and a covering the maximum and minimum diameters of the outer conductor 101. The outer cutter part 5 is provided, at the forward end thereof, with an intermediate cutter part 6 having width substantially equal to that of an insulator 103 in the coaxial cable 100. Another inner cutter part 7 is provided on the inside of the intermediate cutter part 6 and on the rear thereof in the axial direction. The tool 1 is applied to the cut end part of the coaxial cable 100 and driven by means of an electric drill A. The outer cutter part 101 enlarges and deburr the outer conductor 101 while the intermediate cutter part 6 cuts the insulator 103 and the inner cutter part 7 deburrs the inner conductor 102 thus terminating a cable efficiently.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a coaxial cable terminal treatment for expanding the outer conductor terminal of the coaxial cable and cutting off the insulator at the terminal portion thereof in order to connect the coaxial cable to a connector or the like. The present invention relates to a tool and a terminal processing method using this tool.

[0002]

2. Description of the Related Art Conventionally, when a coaxial cable 100 having an outer conductor 101 made of a tubular body with a ring-shaped wave is connected to an antenna or the like, the end of the coaxial cable 100 is
The connector 50 shown in FIG. 9 was attached. In the figure, 51 is a crimping flange, 52 is a body, 53 is a connection metal object, 54 is an insulator, 55 is a contact, 56 is a support body, 57 is a sandwiching body, and 102 is a tubular body coaxially arranged inside the outer conductor 101. An inner conductor, 103 is an insulator filled between the inner conductor 102 and the outer conductor 101, 1
Reference numeral 04 is a coating that covers the outside of the outer conductor 101.

In the connection between the coaxial cable 100 and the connector 50, the end of the outer conductor 101 is connected by being held by the support 56 and the holding member 57, and therefore the end of the outer conductor 101 is expanded. It had to be opened.

Therefore, conventionally, the coaxial cable 100 including the expansion processing of the end of the outer conductor 101 is performed as follows.
Was handling the terminal. That is, the coaxial cable 100
After correcting the bending habit at the terminal part of about 300 mm, cut off the exposed end of the cable end,
Further, the coating 104 of the coaxial cable 100 is peeled off with a cutter knife or the like at a width of 50 mm from the cut-off end face.

After such treatment, the exposed outer conductor 101 is cut with a pipe cutter leaving a predetermined width from the end surface of the coating 104. At this time, the outer conductor 101 is cut at the maximum diameter position (mountain portion) of the wave shape. Furthermore, after cutting the insulator 103 by inserting a knife along the cutting line of the outer conductor 101 and pulling it with pliers or the like, the cut portions of the outer conductor 101 and the insulator 103 are removed from the coaxial cable 100. Then, the exposed inner conductor 102 is cut with a gold saw while leaving 2 mm from the cut end face, and burrs generated at the time of cutting are removed with a file. (Fig. 1
0) Furthermore, using the tool 60, the inner peripheral surface of the outer conductor 101,
Then, the insulator 103 near the outer conductor 102 is removed.
That is, the tool 60 has a pair of triangular blades 62 facing each other with a diameter of the inner surface of the outer conductor 101 facing the tip of a rod-shaped main body 61, and a guide pin 63 is fitted into the inner conductor 102 so that the triangular blade 62 is external. By rotating the main body 61 in a state of being in contact with the inner peripheral surface of the conductor 101, the outer conductor 1
While removing the insulator 103 near 01, the outer conductor 1
01 Cutting burrs on the inner peripheral surface are removed. (Refer to FIG. 11) Since the insulator 103 attached to the inner peripheral surface of the outer conductor 101 cannot be removed by the tool 60, it is scraped off later with a knife.

After removing the insulator 103 near the outer conductor 101, the crimp flange 51 of the connector 50 is inserted into the coaxial cable 100 from the end portion, and in this state,
The end portion of the coaxial cable 100 is fixed by the fixing clamp 70, and the expanding tool 71 is brought into contact with the end surface of the fixed coaxial cable 100. The expansion tool 71 is
A holder 74 that is driven forward at a slight speed while rotating around a guide pin 72 inserted into the inner conductor 102 as a rotation center is provided, and the rotary roller 7 is provided on the front end surface of the holder 74.
5, the rotary roller 75 revolves around its own axis and gradually moves forward, whereby the outer conductor 101
The ends are pushed open from the inside and spread out. (See FIG. 12) Then, by expanding the outer conductor 101, as a result, the insulator 103 that protrudes forward is cut off with a knife. (See FIG. 13) After the insulator 103 is cut off, the end of the coaxial cable 100 is covered with the protrusion allowance gauge 76, and the protrusion allowance gauge 76 is screwed to the crimp flange 51. When the protrusion allowance gauge 76 is attached, the inner conductor 102 protrudes from the insertion hole 77 of the gauge 76, so that the excess inner conductor 102 is removed by cutting the inner conductor 102 along the surface of the protrusion allowance gauge 76 with a gold saw. Remove. And the inner conductor 10
File on the cut surface of No. 2 and project the cut surface to the projection allowance gauge 76
Make flush with the surface. (See FIG. 14) Further, after removing the protrusion allowance gauge 76, burrs on the end surface of the internal conductor 102 are removed with a file.

[0007]

By the way, in the conventional coaxial cable terminal treatment carried out in this way, the number of steps is long and it takes a long time for processing, and also many dedicated tools are required, so that the processing cost is reduced. There was the problem of being expensive.

Therefore, it is an object of the present invention to reduce the processing cost by shortening the processing time and reducing the number of dedicated tools.

[0009]

In order to achieve such an object, in the first aspect of the present invention, an inner conductor is coaxially provided inside an outer conductor formed of a tubular body with a ring-shaped wave. A coaxial cable terminal processing tool for expanding a terminal of the outer conductor of a coaxial cable having an insulator provided between an inner conductor and an outer conductor and cutting off an insulator at the terminal portion is configured as follows. did.

That is, the outer conductor is provided in an annular shape having the same diameter as that of the outer conductor, and the inner end in the radial direction is inclined so as to project forward in the axial direction from the outer end in the radial direction. An outer blade portion having a cutting direction, and a radially inner side of the outer blade portion, at a position projecting from the outer blade portion to the front side in the axial direction, provided in an annular shape having the same width as the insulator,
In addition, it is configured by including a middle blade portion whose circumferential direction is the cutting direction.

An inner blade is provided radially inside the middle blade portion, axially rearward of the middle blade portion, in an annular shape having the same diameter as the inner conductor, and the circumferential direction of which is the cutting direction. Preferably, the outer blade portion and the middle blade portion each have one of the opposing circumferential directions as a cutting direction and the other as a non-cutting direction, and cutting. It is preferable that the directions are different from each other.

In the second invention, a coaxial cable is provided in which an inner conductor is coaxially provided inside an outer conductor formed of a ring-shaped corrugated tubular body, and an insulator is provided between the inner conductor and the outer conductor. The method of treating the end of the coaxial cable, in which the end of the outer conductor is expanded and the insulator at the end is cut off, is configured as follows.

That is, after the coating at the end of the coaxial cable is peeled off by a certain width, the outer conductor, the insulator, and the inner conductor are cut at the outer conductor maximum diameter position on the end side of the predetermined width from the end of the coating. And a circular shape having the same diameter as that of the outer conductor, the radial inner end of the outer conductor is inclined so as to project forward in the axial direction from the radial outer end, and the circumferential direction is cut. With the outer blade part that is oriented
Inside the outer blade portion in the radial direction, at a position projecting to the front side in the axial direction from the outer blade portion, provided with an annular ring having the same width as the insulator, and a middle blade portion with the circumferential direction as the cutting direction. A coaxial cable terminal processing tool is provided, and the outer blade portion is brought into contact with the end portion of the outer conductor, and the middle blade portion is brought into contact with the end portion of the insulator, respectively, and then the coaxial cable terminal processing tool is provided. And a step of rotating the coaxial cable about the axis of the coaxial cable as a rotation center.

[0014]

According to the first aspect of the invention, after cutting the end of the coaxial cable at the large diameter position of the outer conductor, the coaxial cable end processing tool is brought into contact with the coaxial cable end and rotated. Then, the outer blade portion comes into contact with the inner peripheral surface of the outer conductor to expand the outer conductor. At this time, at the same time, the cutting burrs remaining on the end face of the outer conductor are cut off by the outer blade portion. Further, since the outer blade portion cuts while pushing the outer conductor open outward, the cut surface itself also has a shape pushed outward. On the other hand, at this time, at the same time, the insulator is scraped off by the middle blade portion.

Further, when the inner blade portion is provided, the cutting burr of the inner conductor is simultaneously cut off by the inner blade portion.

Furthermore, if the outer blade portion and the middle blade portion are set so that one of the opposing circumferential directions is the cutting direction and the other is the non-cutting direction, and the cutting directions are different from each other. It is possible to divide the work depending on the rotation direction, such as performing the cutting deburring work with the rotation driving torque in one direction and performing the insulator cutting work with the rotation driving torque in the other direction. Therefore, the rotating torque used for each work increases correspondingly, and the reliability of the work increases.

According to the second aspect of the invention, since the outer conductor expanding work and the insulator cutting work can be carried out from the state in which the tool simply cuts the end of the coaxial cable, the pretreatment of these works is as follows. Only the step of cutting the end of the coaxial cable is sufficient.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a coaxial cable terminal processing tool according to an embodiment of the present invention, and FIG. 2 is a partially cutaway side view thereof. The terminal treatment tool 1 includes an inner conductor 10 made of a cylindrical tube inside an outer conductor 101 made of a ring-shaped corrugated tube.
This is a tool used when the coaxial cable 100 is provided with an insulator 103 between the inner conductor 102 and the outer conductor 101 while the two are coaxially provided.

The tool 1 is attached to the tip of the electric drill A and has a cylindrical main body 2 having an outer diameter substantially equal to the outer diameter of the coaxial cable 100. A mounting shaft 3 to be mounted on an electric drill is provided on the base end side of the main body portion 2, and a guide pin 4 for supporting the tool 1 by being inserted into the inner conductor 102 is provided on the tip end side. . The outer blade portion 5, the middle blade portion 6, and the inner blade portion 7 are provided on the end surface of the main body portion 2 on the tip side.

The outer blade portion 5 is formed in a ring shape at the outermost peripheral position of the end face of the body portion 2 and has the same diameter as the outer conductor 101. That is, the outer blade portion 5 is the outer conductor 101.
Is formed in an annular shape having a width that covers the minimum diameter and the maximum diameter of the. The outer blade portion 5 is inclined such that the radially inner end 5a projects axially toward the distal end side from the radially outer end 5b. The inclination angle θ is, as shown in FIG.
The angle α is set to be slightly larger than the angle α formed between the tangential direction C on the inflection point B of the corrugated curve 101a of 01 and the axial direction D of the coaxial cable 100. Specifically, about θ = α + 5 degrees is appropriate.

Further, the outer cutter portion 5 has a total of four outer cutter bodies 8 formed at an angle of 90 degrees. These outer blade body 8
Has a steep angle with respect to one of the circumferential directions facing each other on the outer blade portion 5 arranged in a ring shape,
It has a gentle angle to the other. Therefore, one rotation direction of the tool 1 is the cutting direction, and the other rotation direction is the non-cutting direction.

An annular base 9 is provided inside the outer blade portion 5 in the radial direction. The annular base 9 is formed so as to project axially forward from the outer blade portion 5, and the insulator 1 of the coaxial cable 100 is formed.
03 has the same width in the radial direction. The middle blade portion 6 is provided on the tip end surface of the annular base 9 formed in the radial direction thereof. Further, the middle blade portion 6 has a middle blade main body 10 formed on the annular base 9 at an angle of 120 degrees, for a total of three pieces. These middle blade main bodies 10 have a steep angle with respect to one of the circumferential directions facing each other on the annular base 9, and have a gentle angle with respect to the other. Therefore, one rotation direction of the tool 1 is the cutting direction, and the other rotation direction is the non-cutting direction. Further, the cutting direction of the middle blade portion 6 is opposite to that of the outer blade portion 5.

An annular hole 11 is formed between the guide pin 4 and the radially inner side of the annular base 9. The maximum diameter of the hole 11 is set to be slightly larger than the diameter of the inner conductor 102 of the coaxial cable 100. The hole 11 is bored to the axial outer blade portion forming position, and the bottom surface of the hole 11 is formed along the radial direction. The inner blade portion 7 is provided on the bottom surface of the hole 11. The inner blade portion 7 has a plurality of inner blade bodies 13 provided on the bottom surface of the hole 11 in the circumferential direction. These inner blade bodies 13
Has a steep angle with respect to one of the opposite circumferential directions on the bottom surface of the hole 11, and has a gentle angle with respect to the other. Therefore, one rotation direction of the tool 1 is the cutting direction, and the other rotation direction is the non-cutting direction. Further, the cutting direction of the inner blade portion 7 is opposite to that of the middle blade portion 6.

The coaxial cable end treatment tool 1 thus constructed is made of carbon tool steel or alloy steel.

Next, a method of processing the end of the coaxial cable 100 using the coaxial cable end processing tool 1 having the above configuration will be described.

First, after correcting the bending tendency at the terminal portion of the coaxial cable 100 for about 300 mm,
Cut off the exposed edge, and further cut off 5 from the edge.
At a width of 0 mm, the polyethylene coating 104 of the coaxial cable 100 is peeled off with a cutter knife or the like. At this time,
The stripped end surface 104a of the coating 104 is set at the minimum diameter position (valley portion) of the outer conductor 101.

After such treatment, as shown in FIG. 4, the portion where the coating 104 is peeled off is covered with the coating end surface 104.
The outer conductor 101, the insulator 103, and the inner conductor 102 are collectively cut while leaving a predetermined width from a. As the predetermined width,
A pitch width of four and a half maximum diameter positions (mountain portions) of the outer conductor 101 from the coated end surface 104a is suitable. Therefore, the cutting position is the top of the fifth outer conductor maximum diameter position (mountain portion) from the coated end surface 104a. Cutting at the top of the peak of the outer conductor 101 is important for facilitating the expansion work to be performed later.

This cutting operation can be performed by using, for example, the clamp jig 20 having the guide groove 24 shown in FIG. That is, the clamp jig 20 includes a pair of split clamps 21,2.
1 is housed in the frame 22 and is provided with a screw tightening body 23 that holds the split clamps 21 and 21.
00, the coaxial cable 100 is fixed by tightening the split clamps 21 and 21 with the screw tightening body 23.
After fixing the, frame 22 and split clamps 21,
By driving a gold saw or an electric cutter along a guide groove 24 formed over the coaxial cable 1
00 is cut at a predetermined position.

This cutting operation can be performed by the coaxial cable dedicated pipe cutter 30 shown in FIG. In the pipe cutter 30, a receiving roller 32 is provided inside one end of a C-shaped frame 31, while a support shaft 33 that is extendable toward the receiving roller 32 is provided at the other end. And
A disc-shaped pipe cutter blade 3 that is rotatable on the inner end of the support shaft 33.
Attach 4. The pipe cutter blade 34 is the coaxial cable 1
A radius equal to that of 00 is used.

The coaxial cable 100 is attached to the pipe cutter 30 thus constructed and cut. That is, the support shaft 33 is moved outward and the coaxial cable 100
It is placed on the receiving roller 32. Then, by moving the support shaft 33 inward, the pipe cutter blade 34 is made to bite into the coaxial cable 100. The receiving roller 32 and the pipe cutter blade 34 are arranged so as to rotate along the circumferential direction of the coaxial cable 100, and in this state, the frame 31
Is rotated along the circumferential direction of the coaxial cable 100 to cut the outer conductor 101 over the entire circumference. Then, by moving the support shaft 33 inward and further rotating the frame 31, the insulator 103 and the internal conductor 10 are rotated.
Cut 2 in order.

After cutting the ends of the coaxial cable 100 in a lump, as shown in FIG. 5, the coaxial cable terminal processing tool 1 attached to the tip of the electric drill A is attached to the coaxial cable 10.
Abutting on the end face of 0. At this time, the inner conductor 102
Since the guide pin 4 is fitted into and guided by the guide pin 4, there is no axial misalignment between them. When the tool 1 is brought into contact with the end of the coaxial cable 100 in this way, the inner blade portion 7 is moved to the inner conductor 1
02, the middle blade portion 6 contacts the insulator 103, and the outer blade portion 5 contacts the outer conductor 101. Since the outer conductor 101 is cut at the maximum diameter position (mountain portion), the outer blade portion 5 comes into contact with the inner peripheral surface of the outer conductor 101.

When the electric drill A is driven in this state,
The inner blade portion 7 cuts the cut end surface of the internal conductor 102 and cuts the cutting burr generated in the cutting step which is the previous step to level the end surface of the internal conductor 102. Further, the middle blade portion 6 cuts the insulator 103 to form a cavity between the inner conductor 102 and the outer conductor 101.

Further, the outer blade portion 5 which is in contact with the inner peripheral surface of the outer conductor 101 pushes the outer conductor 101 from the inside to slightly open it. The outer blade portion 5 can expand the outer conductor 101, as described above, because the inclination angle θ is between the tangential direction C on the inflection point B in the corrugated curve 101a of the outer conductor 101 and the axial direction D. This is because the angle is set to be slightly larger than the angle α formed in the.

Then, the outer conductor 101 is cut from the inside while the outer conductor 101 is slightly expanded by the outer blade portion 5. Then, the cutting burr of the outer conductor 101 is removed, and further, the inside of the end surface of the outer conductor 101 is chamfered along the inclination angle θ of the outer blade portion 5. That is, the outer conductor 101 is
Although it is not a right angle to the outside, it is expanded at a considerable angle, and the inner surface of the end face is chamfered while being pushed open along the expansion angle.

Incidentally, the electric drill A is normally driven in forward and reverse directions, but since the outer blade portion 5, the middle blade portion 6 and the inner blade portion 6 have different machinable directions from each other, for example, they are driven in forward rotation. Sometimes the outer conductor 101 is cut open and the inner conductor 102 is cut, while the insulator 1
Only the cutting work of 03 will be performed. Therefore, the number of works to be performed by the rotational torque generated when the rotary drive is performed in one direction is reduced, and each work can be performed without difficulty, so that each work is ensured accordingly.

After the processing by the coaxial cable end processing tool 1 is completed, the insulator 1 adhered to the outer peripheral surface of the inner conductor 102 and the inner peripheral surface of the outer conductor 101 at the end portion.
The residue of 03 is scraped off with a knife. This completes the terminal processing of the coaxial cable 100.

FIG. 8 shows a state in which the connector 50 is attached with the coaxial cable 100 which has been subjected to the terminal treatment as described above. In this terminal treatment method, the end portion of the outer conductor 101 is
The tangential direction C of the inflection point B on the corrugated curve 101a
The end of the outer conductor 101 is chamfered along the opening angle even when the end of the outer conductor 101 is chamfered along the opening angle, and the end of the outer conductor 101 is supported by the support member 56. Since it is reliably sandwiched between the holding body 57 and the holding body 57, and both of them come into surface contact with each other, a sufficient electrical connection can be obtained.

[0038]

As described above, according to the first aspect of the present invention, the outer conductor is expanded by merely bringing the tool of the present invention into contact with the end face of the cut coaxial cable terminal and rotating the end face. Work and insulation reduction work can now be done at the same time. Therefore, since these work steps that have been performed separately in the past can be performed in one work step, the work time can be shortened, and the processing cost can be reduced accordingly.

Furthermore, since a single dedicated tool can perform most of the work instead of the dedicated tool for each work as in the conventional case, the number of dedicated tools required for terminal processing can be reduced, and the processing cost can be reduced by this amount. The reduction of

Further, by providing the inner blade portion, the cutting burr of the inner conductor can be cut off at the same time, so that the working time can be further shortened and the processing cost can be reduced.

Further, when the outer blade portion and the middle blade portion respectively have one of the opposing circumferential directions as a cutting direction and the other as a non-cutting direction, and the cutting directions are different from each other, rotation occurs. Depending on the direction, the work can be shared, the rotational torque used for each work increases, and the work reliability increases. Therefore, the improvement of the certainty of the work leads to the reduction of the work time, and further, the processing cost can be reduced.

According to the second invention, the outer conductor expanding work and the insulator cutting work can be performed from the state where the tool of the present invention simply cuts the end of the coaxial cable. The process of cutting the end of the coaxial cable just got better. In this way, the outer conductor expansion work
Since the number of pretreatment steps for the insulator cutting work can be reduced, the working time can be shortened, and the processing cost can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a perspective view of a coaxial cable terminal treatment tool according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of a coaxial cable terminal processing tool.

FIG. 3 is a diagram for explaining an inclination angle of an outer blade portion of a coaxial cable end processing tool.

FIG. 4 is a side view showing a first step of the coaxial cable terminal treatment method using the coaxial cable terminal treatment tool.

FIG. 5 is a partially cutaway side view showing a second step of the coaxial cable terminal treatment method using the coaxial cable terminal treatment tool.

FIG. 6 is a front view of a clamp jig used in the first step.

FIG. 7 is a front view of the pipe cutter used in the first step.

FIG. 8 is a cross-sectional view of an essential part showing a connection structure between a coaxial cable and a connector that have undergone terminal treatment by the coaxial cable terminal treatment method of the present invention.

FIG. 9 is a partially cutaway side view showing a connection structure between a coaxial cable and a connector that have been subjected to a terminal treatment by a conventional coaxial cable terminal treatment method.

FIG. 10 is a side view showing a first step of a conventional coaxial cable terminal treatment method.

FIG. 11 is a partially cutaway side view showing a second step of the conventional coaxial cable terminal treatment method.

FIG. 12 is a cross-sectional view showing a third step of the conventional coaxial cable terminal treatment method.

FIG. 13 is a partially cutaway side view showing a fourth step of the conventional coaxial cable terminal treatment method.

FIG. 14 is a cross-sectional view showing a fifth step of the conventional coaxial cable terminal treatment method.

[Explanation of symbols]

 5 Outer Blade 6 Middle Blade 7 Inner Blade 100 Coaxial Cable 101 Outer Conductor 102 Inner Conductor 103 Insulator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takumi Yamamoto 4-3 Ikejiri, Itami City, Hyogo Prefecture Mitsubishi Cable Industries, Ltd. Itami Works

Claims (5)

[Claims] 1. A terminal of the outer conductor of a coaxial cable in which an inner conductor is coaxially provided inside an outer conductor formed of a ring-shaped corrugated tubular body, and an insulator is provided between the inner conductor and the outer conductor. Is a coaxial cable terminal treatment tool for expanding and opening the insulator of the terminal portion, the tool being provided in an annular shape having the same diameter as the outer conductor, and the radial inner end of the coaxial cable end processing tool being greater than the radial outer end thereof. An outer blade portion that is inclined so as to project to the front side in the axial direction, and whose circumferential direction is the cutting direction, and a radially inner side of the outer blade portion that projects to the front side in the axial direction from the outer blade portion. A coaxial cable terminal treatment tool, characterized in that it is provided with an intermediate blade portion having a width equal to that of the insulator and having a circumferential direction as a cutting direction. 2. An inner blade provided radially inside the middle blade portion, axially rearward of the middle blade portion, and annularly having the same diameter as the inner conductor, and having a circumferential direction thereof as a cutting direction. The coaxial cable terminal treatment tool according to claim 1, further comprising a portion. 3. The outer blade portion and the middle blade portion each have one of opposing circumferential directions as a cutting direction and the other as a non-cutting direction, and the cutting directions are different from each other. The coaxial cable terminal processing tool according to claim 1, wherein 4. The outer blade portion, the middle blade portion, and the inner blade portion each have one of opposing circumferential directions as a cutting direction and the other as a non-cutting direction, and the cutting direction. 3. The coaxial cable end treatment tool according to claim 2, wherein the two are different from each other. 5. A terminal of the outer conductor of a coaxial cable in which the inner conductor is coaxially provided inside the outer conductor formed of a tubular body with a ring-shaped wave and an insulator is provided between the inner conductor and the outer conductor. Is a method of treating the end of the coaxial cable by removing the insulator at the end of the coaxial cable, the coating at the end of the coaxial cable is peeled off by a certain width, and then the end of the coating is separated from the end by a predetermined width. A step of cutting the outer conductor, the insulator, and the inner conductor at the outermost conductor maximum diameter position; An outer blade portion which is inclined so as to project to the front side and whose circumferential direction is the cutting direction, and a position radially inward of the outer blade portion and which projects axially forward from the outer blade portion. A ring of the same width as the insulator , A coaxial cable end treatment tool having a middle blade portion whose circumferential direction is the cutting direction is prepared, the outer blade portion being an end portion of the outer conductor, and the middle blade portion being the insulating member. After abutting on each end of the body,
A coaxial cable terminal treatment method, comprising: rotating the coaxial cable terminal treatment tool about an axis of the coaxial cable as a rotation center.