JP3081545B2 - High-frequency coaxial cable terminal processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal processing for attaching a connector to a high-frequency coaxial cable, and more particularly to a terminal processing apparatus for peeling off an end of an outer sheath.

[0002]

2. Description of the Related Art As shown in FIG. 8, a high-frequency coaxial cable has an inner conductor a, an insulator b covering the inner conductor a, and an outer conductor c comprising a ring-shaped corrugated tube covering the insulator b. And a sheath sheath d for covering the outer conductor c. A connector is attached to an end of the cable for use.

When a connector is attached to the end of the cable, first, the state shown in FIG.
As shown in FIG. 8B, the outer sheath d is peeled off from the end face by a predetermined length, and further, as shown in FIG. 8C, the end of the insulator b is removed and the outer conductor c is removed. It was necessary to perform the flaring process to expand the end portion. However, conventionally, the operation of peeling the outer sheath d has been performed manually using a knife or the like. When a conventional stripping tool was used, a coaxial cable with a ring-shaped corrugated tube whose outer diameter and wall thickness fluctuated as the outer conductor could not be used due to damage to the outer conductor and mispeeling. .

[0004]

Accordingly, in the prior art, work efficiency was poor and skill was required. Therefore, an object of the present invention is to provide a high-frequency coaxial cable terminal processing device capable of easily and surely peeling off an outer sheath by a predetermined length.

[0005]

In order to achieve the above-mentioned object, a high frequency coaxial cable terminal processing apparatus according to the present invention comprises a cylindrical inner conductor, an insulator covering the inner conductor, and an insulator covering the inner conductor. A terminal processing device for performing terminal processing for attaching a connector to a high-frequency coaxial cable including an outer conductor formed of a ring-shaped corrugated tube and a sheath sheath covering the outer conductor, wherein the end of the high-frequency coaxial cable has A guide cylinder inserted into the outer peripheral surface of the outer sheath and slidably in contact with the outer peripheral surface of the outer sheath; a first portion of the outer peripheral sheath spirally formed by rotation of the guide cylinder about an axis thereof; And an L-shaped sheath peeling blade for separating the outer sheath from the outer conductor to the outer diameter side, and a second portion separated from the guide tube by a predetermined dimension to form an end face of the high-frequency coaxial cable. By contact A regulating member for regulating the release dimensions Kigaihi sheath, in which and a shaft member for axial alignment of the high-frequency coaxial cable is inserted into the inner conductor while being protruded from the regulating member.

Another high-frequency coaxial cable terminal processing apparatus includes an outer conductor composed of an inner conductor, an insulator covering the inner conductor, a ring-shaped corrugated tube covering the insulator, and an outer sheath covering the outer conductor. A terminal processing device for performing terminal processing for attaching a connector to a high-frequency coaxial cable provided with a sheath, comprising: a guide cylinder body into which an end of the high-frequency coaxial cable is inserted and an outer peripheral surface of an outer sheath slides; A first portion is provided on the distal end surface side of the cylindrical body, and the first portion cuts the outer sheath in a spiral shape by rotation about the axis of the guide cylinder, and a second portion separates the outer sheath from the outer conductor by an outer diameter. and L-shaped sheath stripping cutting blade for separating the side, a regulating member for regulating the release dimension of the outer skin sheath by abutment of the end face of the high-frequency coaxial cable separated by a predetermined distance from the guide cylinder, the regulating Cable end outer skin sheath is peeled off together is projecting from the timber is inserted to restrict the outer conductor
And a cylindrical regulating member for performing axial alignment of the high-frequency coaxial cable .

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 and FIG. 2 show a main part of a high-frequency coaxial cable terminal processing apparatus according to the present invention. (See FIG. 4). Incidentally, the high-frequency coaxial cable 1 is shown in FIG.
As shown in FIG. 3, a cylindrical inner conductor 3, an insulator 4 covering the inner conductor 3, an outer conductor 5 composed of a ring-shaped corrugated tube covering the insulator 4, and an outer conductor 5 covering the outer conductor 5 are provided. And the outer sheath 2 described above. Note that the high-frequency coaxial cable 1 is cut at the top of the peak of the outer conductor 5.

As shown in FIGS. 1 and 2, this device is provided on the guide cylinder 7 into which the end of the high-frequency coaxial cable 1 is inserted, and is attached to the distal end surface 7a of the guide cylinder 7. 5, an end surface 1a of the inner conductor 3 of the cable 1 comes in contact with the L-shaped sheath peeling cutting blade 8, and a flange-like contact surface 29 that regulates the peeling dimension H of the outer sheath 2 as shown in FIG.
b having a shaft member b.

That is, the inner diameter of the guide cylinder 7 is
The outer diameter of the high-frequency coaxial cable 1 to be processed is set to be equal to or slightly larger than the outer diameter of the high-frequency coaxial cable 1. When the high-frequency coaxial cable 1 is inserted into the guide cylinder 7, the outer peripheral surface of the outer sheath 2 comes into sliding contact. That is, the high-frequency coaxial cable 1 can be inserted into the guide cylinder 7 without any axial deviation. Further, since the outer sheath 2 of the cable 1 is in sliding contact with the guide cylinder 7, it is preferably formed of a synthetic resin, but may be made of metal.

The distal end surface 7a of the guide cylinder 7 has
As shown in FIG. 2 and the like, the cutting blade holding frame 10 is fixed by bolts or the like, and the cutting blade holding frame 10 has a pair of connecting frames 11, 11.
, A bearing housing case 9 is integrally connected. The cutting blade holding frame 10 is formed of a ring body, and has an inclined surface portion 12 provided at a tip end surface thereof, and the cutting blade 8 for sheath stripping is attached to the inclined surface portion 12. In the illustrated example, the connecting frames 11 are arranged in a pair at a pitch of 180 ° in the circumferential direction. However, the number of connecting frames 11 is not limited to this and may be three or more.

That is, a recess 13 is provided in a part of the inclined surface portion 12, and the sheath peeling cutting blade 8 is fitted in the recess 13 in a fitting manner. This sheath stripping cutting blade 8 is shown in FIG.
As shown in FIG. 1, a first part 15 along the inclined surface part 12 and the first part
A second part 16 erected from the first part 15;
Is composed of a blade portion 15a and a mounting portion 15b, and the second portion 16 is formed of a rectangular piece having a blade portion 16a at the tip. Then, as shown in FIG. 2, the angle θ between the blade portion 15a of the first portion 15 and the blade portion 16a of the second portion 16 is about 85 ° so that the blade does not hit the outer conductor 5 after the sheath is peeled off. The mounting portion 15b of the first portion 15 is provided with a through hole 17, and a bolt member 18 (see FIG. 1) such as a hexagon socket bolt inserted into the through hole 17 is screwed to the cutting blade holding frame 10. By doing this, the cutting blade 8 is
Attached to In this case, as shown in FIG. 1, it is preferable that the head of the bolt member 18 be housed in the cutout portion 14 of the first portion 15.

Incidentally, the inclination angle α of the inclined surface portion 12 (FIG. 1)
) Is, for example, 5 ° to 10 °, and the first
The inclination angle β (see FIG. 1) of the blade portion 15a of the portion 15 is, for example,
20 ° to 30 °. Therefore, in this case, the inclined surface of the blade portion 15a is set to α with respect to a plane orthogonal to the axis of the guide cylinder 7.
It is inclined at an angle of + β. Furthermore, the blade portion 16a of the second part
The inclination angle γ (see FIG. 3) is, for example, 20 ° to 30 °, and the cutting edge of the blade portion 16a of the second part has an inclination angle δ (the angle with respect to the axis of the guide cylinder 7) (see FIG. 1). ) Is the same as the above-mentioned inclination angle α, and is, for example, 5 ° to 10 °.

In this case, when viewed from the axial direction, the cutting portion of the cutting blade 8 is inserted into the hole 19 of the guide cylinder 7 through the hole 20 of the holding frame 10.
The corners (corners) of 15a and 16a protrude. The amount of protrusion is 50% or more of the thickness of the outer conductor convex portion of the outer sheath 2.
80%. Generally, the inner peripheral surface of the connection frame 11 is a curved surface 21 and is continuous with the inner peripheral surface of the holding frame 10. That is, the radius of curvature of the curved surface 21 and the radius of curvature of the inner peripheral surface of the holding frame 10 are set to be the same, but even if the curved surface 21 of the sheath peeling cutting blade 8 on the bearing housing side is substantially the same as the outer diameter of the outer conductor. good. Further, a tapered portion 19a that sequentially expands toward the base end is provided at the base end opening of the guide cylinder 7. This is to facilitate insertion of the cable 1 into the hole 19 of the guide cylinder 7.

As shown in FIG. 2, the bearing housing case 9 includes an outer frame 23, a disc-shaped body 24 provided inside the outer frame 23, and a lid 25 for covering the opening of the outer frame 23. And. The outer frame 23 includes a peripheral wall 23a and a disk-shaped bottom wall 23b. The connection frame 11 is continuously formed on the bottom wall 23b, and is integrated with the disk-shaped body 24 by bolts (not shown). . Further, the lid 25 includes a disc-shaped substrate 25a and the disc-shaped substrate 25a.
a base portion 27a of a shaft 27 is inserted and fixed in a hole 26 of the lid 25. Then, the lid 25 is fixed to the disc-shaped body 24 with bolts 28, and the outer frame 23
And the disc-shaped body 24 and the lid 25 are integrated. In this case, the outer frame
The inner diameter of the bottom wall 23b of the 23 is the same as the inner diameter of the connection frame 11.

The bearing housing case 9 is provided with a shaft member 29 protruding toward the guide cylinder 7. That is, one end 29a of the shaft member 29 is rotatably fitted to the shaft hole 30 of the disk-shaped body 24 as a bearing housing via the bearing 32. Therefore, the axis of the shaft member 29 coincides with the axis of the bearing housing case 9, the holding frame 10, and the guide cylinder 7. In this case, the outer diameter of the shaft member 29 is the cable 1
The inner diameter of the inner conductor 3 is set to be equal to or slightly smaller than that of the inner conductor 3 so that the shaft member 29 can be inserted into the inner conductor 3. That is, the shaft center of the cable 1 is aligned by inserting the shaft member 29 into the inner conductor 3. A flange is provided on the side of the guide member 7 of the shaft member 29, and an exposed surface thereof serves as a contact surface 29b with which the end surface 1a of the internal conductor 3 of the cable 1 inserted into the guide tube 7 contacts. In other words, the contact surface 29b is a regulating member that regulates the peel size of the outer sheath of the cable 1 by the contact of the end surface 1a of the cable 1 with a predetermined distance from the guide cylinder 7. In the illustrated example, the length of the shaft member 29 is such that the other end slightly enters the guide cylinder 7, but the other end reaches the base end face 7b of the guide cylinder 7. Is also good. The other end of the shaft member 29 is a tapered portion 31.

Next, the peeling operation (peeling) of the outer sheath 2 of the high-frequency coaxial cable 1 using the high-frequency coaxial cable terminal processing apparatus configured as described above will be described. First,
A shaft 27 protruding from the bearing housing case 9 is inserted and fixed to a rotation shaft portion 33a of a rotation driving mechanism 33 as shown by a virtual line in FIG. The bearing housing case 9 and the like are set so as to rotate integrally around the axis L. In this case, the rotation drive mechanism 33 can reciprocate along the axis L direction. That is, the rotation drive mechanism 33 allows the guide cylinder 7 and the bearing housing case 9 and the like to reciprocate along the axis L along with the rotation about the axis L.

Then, with the rotation stopped, the end of the cable 1 is inserted into the guide cylinder 7 from the base end face 7b side. (In this case, the guide cylinder 7 is moved with respect to the cable 1. On the contrary, the cable 1 is moved with respect to the guide cylinder 7.
The guide cylinder 7 and the cable 1 may be set so as to be moved in a direction approaching each other. The cable 1 is clamped by a clamp mechanism (not shown), and the axis of the end of the cable 1 coincides with the axis L.

In this state, the rotation drive mechanism 33 is driven,
While rotating the guide cylinder 7 and the bearing housing case 9 around the axis L as indicated by the arrow A, the guide cylinder 7 and the like are pressed against the cable 1 in the arrow B direction. Thereby, first, a part of the end surface of the outer sheath 2 comes into contact with a part of the back surface of the first portion of the cutting blade 8 protruding toward the inner diameter side,
From this state, the arrow B is applied while further rotating in the direction of arrow A.
When the feed in the direction is given, the outer sheath 2 is cut from a part of the end face by the blade portion 15a of the first portion 15. Also,
The outer sheath 2 is separated from the outer conductor 5 to the outer diameter side by the blade portion 16a of the second portion 16. In this case, since the head of the bolt member 18 is housed in the cutout portion 14 of the first portion 15 of the cutting blade 8, the cut outer sheath 2 does not catch on the bolt member 18 and is cut smoothly. go.

Since the cutting blade 8 is attached to the inclined surface portion 12, the cutting line S of the outer sheath 2 by the blade portion 15a of the first portion 15 has a spiral shape as shown by an imaginary line in FIG. And
Cutting by the first portion 15 of the cutting blade 8 at a predetermined angle with respect to the axis of the outer sheath 2 and separation (separation) of the outer sheath 2 from the outer conductor 5 by the second portion 16 of the cutting blade 8. This is sequentially performed until the end surface 1a of the cable 1 contacts the shaft member 29 (specifically, the contact surface 29b). Further, at the time of this peeling, the shaft member 29 is sequentially inserted into the inner conductor 3, the axial center is adjusted, and the outer sheath 2 can be peeled in a stable state.

Accordingly, as shown in FIG. 5, the outer sheath 2 is peeled off from its end face by a predetermined dimension. That is, the peeling dimension H of the outer sheath 2 is determined by the contact surface 29b of the shaft member 29.
Is regulated, and the peeling dimension H is constant. When the cutting of the outer sheath 2 by the cutting blade 8 is completed, the guide cylinder 7 is cut.
When the cable is moved in the direction opposite to the arrow B with respect to the cable 1, the cable 1 from which the end of the outer sheath 2 has been peeled is pulled out from the guide cylinder 7, and the peeling operation is completed. In addition,
When the operation of peeling the outer sheath 2 is completed, the operation of removing the end of the insulator 4 and the flaring of the inner conductor 3 are performed by another process.

FIGS. 6 and 7 show another high-frequency coaxial cable terminal processing apparatus, which is used for peeling (peeling) the outer sheath 2 of the small-diameter cable 1. That is, the guide cylinder 7
The diameter of the hole 19 is smaller than that of the hole 19 of the guide cylinder 7 shown in FIG. 1 and the like, and the end of the cable 1 from which the outer sheath 2 has been peeled is inserted as a regulating member (that is, the contact surface 29b). A cylindrical regulating member 35 is provided.

In this case, the regulating member (that is, the contact surface 29)
b) shows an outer frame 36 and a disc-shaped body 37 provided inside the outer frame 36.
And a lid 38 for covering the opening of the outer frame 36. That is, like the outer frame 23 shown in FIG.
a and a bottom wall 36b, the connecting frame 11 is continuously formed on the bottom wall 36b, and a disc-shaped body 37 to be installed is integrated with a bolt (not shown). The lid 38 also includes a disk-shaped substrate 38a and a boss 38b protruding from the disk-shaped substrate 38a, and a shaft 40a is fixedly inserted into the hole 39 of the lid 38 to the handle 40. .

The cylindrical regulating member 35 having a blind hole 35a opening toward the guide cylinder 7 is protruded from an end surface 41 of the disc-shaped body 37 on the guide cylinder 7 side. Therefore, the end surface 1a of the cable 1 comes into contact with the bottom surface 42 of the blind hole 35a of the cylindrical regulating member 35. That is, the bottom surface 42 becomes a regulating member that is separated from the guide cylinder 7 by a predetermined dimension and regulates the peeling dimension of the outer sheath of the cable 1 by the contact of the end face 1a of the cable 1. Note that the lid 38 is fixed to the disk-shaped body 37 with the bolt 28, and the outer frame 36, the disk-shaped body 37, and the lid 38 are integrated. The other configuration is the same as that of the processing apparatus shown in FIG.

Therefore, even with this processing device, the guide tube 7 is inserted into the guide tube 7 at the end of the cable 1 and the handle 40 is rotated to rotate the guide tube 7 and the like.
Is pushed into the cable 1 so that the outer sheath 2 can be peeled off by the cutting blade 8. At this time, the outer sheath 2 can be peeled off in a range until the end surface of the cable 1 contacts the bottom surface 42 of the blind hole 35a of the cylindrical regulating member 35. That is, also in this case, the outer sheath 2 in a specified range can be reliably peeled off from the end face.

The inclination angle α of the holding frame 10 and the inclination angles β and γ of the blade portions 15 a and 16 a of the first and second portions 15 and 16 of the cutting blade 8.
And the like can be freely changed depending on the type of the cable 1 and the like, and the pushing speed of the guide cylinder 7 in the direction of the arrow B also depends on the type of the cable 1 and the blade portions of the first and second portions 15 and 16 of the cutting blade 8. Fifteen
a, 16a can be changed according to the inclination angles β, γ, and the like.

[0027]

Since the present invention is configured as described above, the following effects can be obtained.

According to the high-frequency coaxial cable end processing device of the first aspect, the cutting blade 8 does not eccentrically separate the outer sheath 2 from the cable 1 from the end surface with respect to the cable 1 and reliably and stably peels off. can do. According to the high-frequency coaxial cable terminal processing apparatus of the second aspect, even if the cable has a small diameter, the outer sheath 2 can be peeled off by a predetermined amount in a stable state.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a high-frequency coaxial cable terminal processing apparatus according to the present invention.

FIG. 2 is a plan view of an essential part shown in a partial cross section.

FIG. 3 is a perspective view of a cutting blade.

FIG. 4 is a side view of a main part showing a use state.

FIG. 5 is a plan view of a main part showing a partial cross section showing a use state.

FIG. 6 is a side view of a main part of another high-frequency coaxial cable terminal processing apparatus.

FIG. 7 is a plan view of a main part shown in a partial cross section.

FIG. 8 is an explanatory diagram of a method for processing a terminal of a high-frequency coaxial cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High frequency coaxial cable 2 Outer sheath 3 Inner conductor 4 Insulator 5 Outer conductor 7 Guide cylinder 7a Tip surface 8 Sheath stripping cutting blade 15 First part 16 Second part 29 Shaft member 29b Contact surface (restriction member) 35 tubes Shape regulating member 42 Bottom (regulating member)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-226213 (JP, A) JP-A-5-191910 (JP, A) JP-A-4-101213 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) H02G 1/12 H01R 24/02

Claims (2)

(57) [Claims] 1. A high-frequency coaxial comprising a tubular inner conductor, an outer conductor comprising an insulator covering the inner conductor, a ring-shaped corrugated tube covering the insulator, and an outer sheath covering the outer conductor. A terminal processing device for performing terminal processing for attaching a connector to a cable, wherein a guide cylindrical body into which an end of a high-frequency coaxial cable is inserted and an outer peripheral surface of an outer sheath slides, and a distal end surface side of the guide cylindrical body An L-shape in which a first portion of the guide sheath is spirally cut by the rotation of the guide cylinder about its axis, and a second portion separates the sheath from the outer conductor to the outer diameter side. A cutting member for separating the sheath sheath, a restricting member for restricting the peeling dimension of the outer sheath by contacting the end face of the high-frequency coaxial cable at a predetermined distance from the guide cylinder, and a restricting member protruding from the restricting member. said inner conductor within A high frequency coaxial cable terminal processing apparatus, comprising: a shaft member inserted into the shaft for performing axial alignment of the high frequency coaxial cable. 2. A high-frequency coaxial cable having an inner conductor, an insulator covering the inner conductor, an outer conductor comprising a ring-shaped corrugated tube covering the insulator, and an outer sheath covering the outer conductor. A terminal processing device that performs terminal processing for attaching a, a guide cylindrical body into which the end of the high-frequency coaxial cable is inserted and the outer peripheral surface of the outer sheath slides,
The first portion is provided on the distal end surface side of the guide cylinder and the first portion spirally cuts the outer sheath by rotation about the axis of the guide cylinder, and the second portion disconnects the outer sheath from the outer conductor. An L-shaped sheath cutting blade for separating to an outer diameter side,
A regulating member that regulates the peeling dimension of the outer sheath by abutting the end face of the high-frequency coaxial cable at a predetermined distance from the guide cylinder, and an outer sheath projected from the regulating member and the outer sheath. A high-frequency coaxial cable terminal processing device, comprising: a tubular restricting member into which a peeled cable end is inserted to regulate an external conductor and align a high-frequency coaxial cable.