JPH0142479B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coaxial cable processing machine for processing the terminals of flexible type coaxial cables used for electrical connections between devices in telecommunications equipment.

Flexible coaxial cables are composed of materials such as a jacket, shield braid, insulator, and center conductor, and when used to connect devices, it is necessary to solder a connector to the end of the coaxial cable. be. To do this, a long coaxial cable must be cut to the specified dimensions, both ends of the cable must be stripped, and the ends must be processed by pre-soldering the center conductor or the center conductor and the shield braid. It won't happen.

Conventionally, there is no method for cutting the ends of coaxial cables that can be performed automatically and continuously, and workers can cut coaxial cables using simple jigs and tools, commercially available strippers for coaxial cables, soldering irons, etc. , a method is used in which both terminals are sequentially processed by stripping and pre-soldering.

FIG. 1 shows the end of a coaxial cable, which is also a workpiece. Figure a is a side view showing a part of the coaxial cable 10 before processing, and figure b is the jacket 11, shield braid 12,
FIG. 2 is a side view showing a part of a processed coaxial cable 16 in cross section, in which a solder film 15 is formed on a center conductor 14 after stripping an insulator 13; However, with these conventional methods, workers have to manually hold the coaxial cable and jigs in their hands to fix and process the coaxial cable, which causes a great deal of burden and fatigue on the workers. However, it also has the drawbacks of inefficient work, poor product yield, and high product costs. Furthermore, because the process is performed manually by an operator, the accuracy of the finished dimensions of the product deteriorates, and when the connector is later assembled, corrections must be made, which requires extra effort.

An object of the present invention is to eliminate the above-mentioned drawbacks, to propose a coaxial cable processing machine that processes the end portion of a coaxial cable with high precision and efficiency, and that can be easily handled by an operator.

The present invention includes a strainer mechanism that removes bends in a coaxial cable and sends it horizontally, and a strainer mechanism that is arranged adjacent to the strainer mechanism in the traveling direction of the coaxial cable so that the coaxial cable fed by the strainer mechanism has a predetermined dimension. a sizing feed mechanism that feeds the sizing feed; and a cutting mechanism that is arranged adjacent to the sizing feeding mechanism in the traveling direction of the coaxial cable and cuts the coaxial cable fed the sizing feed into the predetermined size. is arranged adjacent to the cutting mechanism in the traveling direction of the coaxial cable, and is capable of moving downward while holding the vicinity of both end portions of the coaxial cable cut to the predetermined size; a chuck mechanism that can change the direction of the terminal portion downward; and a chuck mechanism that allows the chuck mechanism to move downward, and at a predetermined position where the chuck mechanism moves downward, the coaxial cable is placed on the extended axis of the coaxial cable cut to a predetermined size. a stripping mechanism that pinches a cable and disposes it facing each other and moves along the axis of the coaxial cable to cut off the outer sheath, shield braid, and insulator of both ends of the coaxial cable by predetermined dimensions; The solder dip bath is disposed below the stripping mechanism and solders both ends of the coaxial cable processed by the stripping mechanism by changing the direction downward by the chuck mechanism. This is a coaxial cable processing machine.

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

FIG. 2 shows a perspective view of an embodiment of the invention. A strainer mechanism 20 is disposed on the front surface of a casing 21 of the coaxial cable processing machine to guide the coaxial cable 10 in the horizontal direction and transport it to a subsequent processing mechanism. A plurality of strainer mechanisms 20 are arranged in a staggered manner with the coaxial cable 10 in between, and each strainer mechanism 20 includes a pulley 22 whose contact surface with the coaxial cable 10 is concave, and a support rod 23 that supports the pulley 22 on the housing 21. configured.

A fixed length feed mechanism 25 is arranged adjacent to the strainer mechanism 20 in the traveling direction of the coaxial cable 10. The fixed size feed mechanism 25 shown in FIG.
is connected to the first clamp stand 26 via the first support shaft 27 and is driven by the first drive cylinder 28.
A first clamper 29 swings in the direction shown by arrow a around a support shaft 27, and a first clamper 29 is disposed adjacent to the first clamp stand 26 and is connected to a second drive cylinder 30 for reciprocating motion in the direction shown by arrow b. A second clamp stand 31 is connected to the second clamp stand 31 via a second support shaft 32 and is driven by a third drive cylinder 33 to swing in the direction shown by arrow c about the second support shaft 32. and a second clamper 34.

Further, in FIG. 2, a cutting mechanism 36 is arranged at a position adjacent to the sizing feed mechanism 25 in the traveling direction of the coaxial cable 10. Cutting mechanism 3 shown in FIG.
6 is a coaxial cable 10 fixed to the front of the housing 21.
A die 38 having a guide hole 37 along the advancing direction of the die 38
and a cutter 40 disposed adjacent to the die 38, connected to a fourth drive cylinder 39, and movable up and down in the direction indicated by arrow d.

Furthermore, in FIG. 2, a chuck mechanism 42 is disposed adjacent to the cutting mechanism 36 in the traveling direction of the coaxial cable 10. The chuck mechanism 42 shown in FIG. 21, a movable base 48 connected to a drive motor 46 fixed to a base 44 via a feed screw 47, and reciprocating in the direction of arrow f; A second chuck portion 49 is disposed protruding from the front surface of the housing 21 near the upper end of the base 48.
The first chuck portion 45 includes a third clamp base 53 connected to a first rotational drive source 52 fixed to the base 44, and a third support shaft 54 connected to the third clamp base 53.
The second chuck portion 49 is connected to a third clamper 56 and is driven by a sixth drive cylinder 55 to swing in the direction indicated by an arrow g about a third support shaft 54. A fourth clamp table 59 is connected to a second rotary drive source 58 fixed to the moving table 48, and a fourth support shaft 6 is attached to the fourth clamp table 59.
0, and a fourth clamper 62 that is driven by a seventh drive cylinder 61 and swings in the direction indicated by an arrow h about a fourth support shaft 60.

On the other hand, in FIG. 2, a strip mechanism 65 is disposed below the chuck mechanism 42 so as to face the axis of extension of the coaxial cable 10 when the chuck mechanism 42 is lowered. This strip mechanism 65
The first and second strippers 66 and 67 have a built-in blade for cutting off the outer sheath, shield braid, and insulator of the terminal portion of the coaxial cable, and a rotary drive motor for rotating the blade. , 67, and first and second rails 70, which guide the movement of the first and second strippers 66, 67 in the direction of arrow j, respectively. 71.
Furthermore, the housing 2 is located below the strip mechanism 65.
A solder dip tank 73 is arranged in front of the solder plate 1.
This solder dip tank 73 contains solder 75 in a tank 74 and has a built-in heater.

FIG. 6 is a process diagram showing the processing process performed by the coaxial cable processing machine shown in FIG. 2. Figure a
The coaxial cable 10 before processing is sent to the fixed length feed mechanism 25.
The process in which the first clamper 29 of the fixed-length feed mechanism 25 opens and the second clamper 34 holds the coaxial cable 10 and starts fixed-length feeding is shown in FIG. A process in which the fourth clamper 62 holds the coaxial cable 10 by feeding it by a fixed length, and d in the same figure shows a process in which the second chuck portion 49 of the chuck mechanism 42 is fed to set the coaxial cable 10 to the length to be processed. e is a process in which the cutter 40 of the cutting mechanism 36 cuts the coaxial cable 10;
Figure 1 shows the process of cutting and holding the coaxial cable 10 to a fixed size, Figure 1g shows the process of stripping the coaxial cable 10, Figure 1H shows the process of applying a solder dip to the end of the cable 10, and Figure i shows the process of processing the coaxial cable 10 into strips. All machining has been completed.

Next, the operation of each part of the coaxial cable processing machine in the above steps will be explained in detail. The unprocessed coaxial cable 10 shown in FIG. 1a is fed through the strainer mechanism 20 as shown by the arrow k in FIG.
After the coaxial cable 10 is held by the clamper 29, the second clamper 34 holds the coaxial cable 10 by driving the third drive cylinder 33, as shown in FIG. 6b. Next, the first clamper 29 is brought into an open state by driving the first drive cylinder 28. Next, the second clamp stand 3
1 is moved by the drive of the second drive cylinder 30 and sends the coaxial cable 10 to the third clamp table 53 and fourth clamp table 59 of the chuck mechanism 42, as shown in FIG. 6c. When the coaxial cable 10 fed into the chuck mechanism 42 is held by the fourth clamper 62 of the second chuck section 49, and the first clamper 29 and the second clamper 34 of the sizing feed mechanism 25 release the coaxial cable 10, the coaxial cable 10 is released. As shown in FIG. 6d, the movable table 48 is moved by the drive motor 46 while holding the coaxial cable 10, and sets the coaxial cable 10 to a predetermined processing length. Mobile platform 4
8 finishes moving, the third chuck part 45
The clamper 56 holds the coaxial cable 10, and the first clamper 29 holds the first drive cylinder 28.
The coaxial cable 10 is held by driving. Note that the coaxial cable 10 is connected to the strainer mechanism 20.
The bend is corrected while passing through. The coaxial cable 10 held by the third clamper 56 and the fourth clamper 62 of the chuck mechanism 42 is cut at its rear end by the cutter 40 driven by the fourth drive cylinder 39, as shown in FIG. 6e. During work, the second clamp stand 31 is moved backward by the drive of the second drive cylinder 30. As shown in FIG. 6f, the coaxial cable 10 is held by the third clamper 56 and the fourth clamper 62 of the chuck mechanism 42, and the coaxial cable 10 cut into a predetermined length is held by the third clamper 56 and the fourth clamper 62.
2 and is lowered by the drive of the fifth drive cylinder 43. Both ends of the coaxial cable 10 that has descended are connected to first and second strippers 6 that reciprocate by being driven by eighth and ninth drive cylinders 68 and 69, respectively.
6 and 67, the outer sheath 11, shield braid 12, and insulator 13 are removed to predetermined dimensions as shown in FIGS. 1b and 6g. When the stripping process is completed, the movable table 48 is moved to the first chuck portion 45 by the drive motor 46.
The first and second chuck parts 45 and 49 are rotated by the first and second rotational drive sources 52 and 58, respectively, while the coaxial cable 10 is moved in the direction of Turn both ends of the coaxial cable 10 downward and show the striped ends of the coaxial cable 10 in Fig. 6h.
It is immersed in a solder dip tank 73 as shown in FIG. Next, the first and second chuck parts 45, 49
are returned to their original orientations by driving the first and second rotational drive sources 52 and 58, respectively, and the movable table 48 is returned to its original position by movement of the drive motor 46,
Coaxial cable 1 processed as shown in Figure 6i
Fix the slack in 6. Next, the first chuck portion 45,
The second chuck portion 49 is returned to its original height by driving the fifth drive cylinder 43, and the third clamper 56 and fourth clamper 62 are opened to remove the coaxial cable 10.
The operation of this device ends when the is released.

With the present invention, it is possible to automatically and continuously repeat the process of correcting bends in the coaxial cable to be processed, cutting it to a predetermined length, stripping both ends, and soldering dip processing, eliminating the need to measure the length of the coaxial cable. At the same time, there is no error caused by visual measurement by the operator, and there is no fatigue for the operator. Therefore, it is possible to produce high-quality products with good dimensional accuracy in a very efficient manner, and there is also an effect that the number of defects during processing is reduced, the yield is improved, and the product price can be lowered.

[Brief explanation of drawings]

1A and 1B are side views showing a part of the terminal portion of the coaxial cable before and after processing; FIG. 2 is a perspective view showing the main structure of an embodiment of the present invention; FIG.
Figures 4 and 5 are perspective views showing the configurations of the fixed size feed mechanism, cutting mechanism, and chuck mechanism in Figure 2, respectively, and Figure 6 is a process for explaining the operation of the embodiment in Figure 2. It is a diagram. 10... Coaxial cable, 16... Processed coaxial cable, 20... Strainer mechanism, 25...
Fixed size feed mechanism, 36...cutting mechanism, 42...chuck mechanism, 65...stripping mechanism, 73...solder dip bath.

Claims (1)

[Claims] 1. A strainer mechanism that removes bends in the coaxial cable and sends it horizontally; and a strainer mechanism that is arranged adjacent to the strainer mechanism in the traveling direction of the coaxial cable and sizing the coaxial cable fed by the strainer mechanism by a predetermined dimension. a fixed-length feeding mechanism that feeds the coaxial cable; and a cutting mechanism that is arranged adjacent to the fixed-length feeding mechanism in the traveling direction of the coaxial cable and cuts the coaxial cable that has been fed the fixed-length feed into the predetermined size. The coaxial cable is disposed adjacent to the cutting mechanism in the traveling direction of the coaxial cable, and is capable of moving downward while holding the vicinity of both end portions of the coaxial cable cut to the predetermined size. a chuck mechanism that can change the direction of the coaxial cable downward; and at a predetermined position where the chuck mechanism moves downward, the coaxial cable is placed on the extended axis of the coaxial cable cut to a predetermined size. a stripping mechanism that is arranged narrowly and facing each other and moves along the axis of the coaxial cable to cut off the outer sheath, shield braid, and insulator at both ends of the coaxial cable by predetermined dimensions; and the stripping mechanism. and a solder dip bath for soldering both terminal parts of the coaxial cable processed by the stripping mechanism and turned downward by the chuck mechanism. Processing machine.