JP3341006B2 - Pin hand and pin insertion / extraction device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pin hand for establishing electrical continuity by inserting it into an existing difference hole in a matrix board, and more particularly to an automatic wiring management system for automatically installing and switching communication lines in buildings and the like. The present invention relates to a pin hand used in a system and a pin insertion / extraction device using the same.

[0002]

2. Description of the Related Art A main distributing frame (MDF) has been used as an automatic wiring apparatus for automatically installing and switching a communication line, which has been performed manually.
As the conventional pin hand used for this MDF,
There is a structure shown in FIG. This will be described with reference to the same drawing. Reference numeral 2 denotes a matrix board in which printed boards are laminated in multiple layers, and an intersection point printed vertically and horizontally is passed through a hole called a difference point hole 3 and then subjected to a plating process or the like. By inserting and removing the pins 4 having electrically conductive portions in the holes 3, conduction and disconnection processing between printed wirings arranged in multiple layers is performed. The pin 4 has a flange portion 5 and a small diameter portion 6. A pin hand, generally designated by the reference numeral 40, includes a housing 41, a pin finger support 42 suspended by springs 43 in X, Y, and Z directions, and a support shaft 4 mounted on the pin finger support 42.
5 and a gripping portion 44a and a protruding portion 44
b, and a solenoid 46 having a neck-shaped drive shaft 47 fixed in the pin finger support 42 and fitted with the protruding portion 44b of the pin finger 44. In such a configuration, when the solenoid 46 operates and the drive shaft 47 moves in the vertical direction in the figure, the protrusion 44 b fitted with the drive shaft 47 also moves up and down, and the pin finger 44 , The grip portion 44a opens and closes to grip or release the small diameter portion 6 of the pin 4. here,
When the pin finger 44 grips and releases the pin 4, if there is a misalignment between the axis of the pin 4 and the axis of the pin 4, the pin finger support 42 that supports the pin finger 44 is The spring 43 bends and moves so as to follow the center position.

FIG. 6 shows a pin inserting / extracting device for inserting / extracting the pins 4 using the above-described pin hand 40. In the figure, a pin hand 40 is supported on a base 48 by rollers 52 so as to be movable in the vertical direction in the figure. 49 is the base 48
A DC motor 50 is fixed to the housing 41 via a bracket, and a ball screw 51 is screwed into the screw portion 41a of the housing 41.
This is a ball screw feed mechanism provided with: When the DC motor 49 is rotated forward and backward, the rotation is performed by the ball screw feed mechanism 5.
0 is converted into a linear motion, and the pin hand 40 moves up and down, so that the pin 4 is inserted and withdrawn.

[0004]

The above-described conventional pin hand has a structure in which the pin finger 44 is swingably supported around the support shaft 45, so that the mechanism itself becomes large, and the pin finger 44 is conventionally mounted on the floor of an office building. The automatic wiring management system could not be installed in the installed wiring processing box, and new investment was required, which was uneconomical. Further, the above-described pin insertion / extraction device includes a pin hand 40,
Since the ball feed screw mechanism 50 and the DC motor 49 are arranged in series and the respective components themselves are enlarged, there is a disadvantage that mounting in a narrow space is impossible.

Accordingly, the present invention has been made in view of the above-mentioned conventional drawbacks, and an object of the present invention is to reduce the size of an existing wiring box installed in an office building. It is an object of the present invention to provide a pin hand and a pin insertion / extraction device which realize a highly reliable automated wiring management system.

[0006]

In order to achieve this object, a pin hand according to the present invention is divided into a plurality of portions so that one end can be freely opened and closed in a radial direction, and a pin holding portion is formed. A tapered portion is formed on the outer surface of the portion,
A pin gripping member, the other end of which is supported by a pin insertion shaft, is provided with an engagement surface surrounding the pin gripping member, slidably with respect to the pin gripping member, and engaging with a tapered portion of the pin gripping member. Cylindrical slide drum, a solenoid that releases the engagement between the engagement surface of the slide drum and the tapered portion of the pin gripping member, and resists the suction force of the solenoid inserted into the slide drum. And a coil spring. Further, the pin insertion / extraction device according to the present invention is a guide mechanism that guides the pin hand toward and away from the matrix board, and enables a pin gripped by the pin hand to be freely inserted into and removed from a difference hole of the matrix board, and a driving source. It comprises a ball screw mechanism for converting the rotation of the motor into a linear motion, and a connecting member for connecting the ball screw mechanism and the guide mechanism. The guide mechanism, the ball screw mechanism and the motor are provided side by side.

[0007]

According to the present invention, the engagement surface of the slide drum is engaged with the tapered portion of the pin holding member by the coil spring,
When the pin gripper is closed and grips the pin and the solenoid is actuated, the engagement between the engagement surface of the slide drum and the tapered portion of the pin gripper is released against the coil spring, and the pin gripper is opened to release the pin. release. Further, according to the present invention, since the guide mechanism, the ball screw mechanism, and the motor are provided side by side, the total length of the pins in the insertion / removal direction is reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a pin hand according to the present invention, and FIG. 2 is an overall perspective view of the same pin finger. In these figures, a pin hand indicated by reference numeral 10 is a cylindrical slide drum 11 having a bottom, a hollow pin finger 12 as a pin holding member, and a coil spring 16 inserted into the pin finger 12. , Abut the pin 4 and the head and insert the pin 4
It is roughly constituted by a pin insertion shaft 23 inserted into the inside and an electromagnetic coil 18 constituting a solenoid. At the center of the bottom surface of the slide drum 11, a hole 11a having a tapered peripheral end surface is formed.

At the lower end of the pin finger 12, a pin grip 13 is formed, which is divided into a plurality of strips and has a tapered portion 13a having the same gradient as the hole 11a on the outer peripheral surface, and a cylindrical portion 14 is formed at the upper end. Slide bearing 15 formed and fixed to cylindrical portion 14
Thereby, the slide drum 11 is movable with respect to the pin finger 12 in the axial direction thereof. As shown in detail in FIG. 2, the pin finger 12 is formed such that the upper end side, which is the base of the pin gripping portion 13, is formed in a thin shape, and has elasticity so that the pin gripping portion 13 opens in a radially outward direction. The slide drum 11 is urged in the direction A by the coil spring 16,
As a result, the hole 11a engages with the tapered portion 13a to close the pin holding portion 13 in the radial direction. 17 is the slide drum 1
1 is an armature fixed to the upper end surface of the armature 1 so as to face the electromagnetic coil 18. 19 is a base, 20 is an insertion block, 21 is an insertion detecting spring interposed between the base 19 and the insertion block 20, and 22 is an insertion sensor. The pin insertion shaft 23 is inserted into the hollow portion of the pin finger 12, and has a step portion 23 a that engages with the cylindrical portion 14 of the pin gripping member 12 and a step portion 23 b that engages with the base 19. In addition, a flange 23c facing the insertion sensor is formed at the upper end.

Next, a pin gripping operation by the pin hand configured as described above will be described. When no current is supplied to the electromagnetic coil 18, the armature 17 is released as shown in FIG. When the armature 17 is released, that is, separated from the electromagnetic coil 18, there is no binding force on the coil spring 16, and the coil spring 16
The slide drum 11 is pushed down by the spring force of. This spring force engages the hole 11a of the slide drum 11 with the tapered portion 13a of the pin finger 12, pushes the pin grip 13 of the pin finger 12 radially inward to grip the small diameter portion 6 of the pin 4. Works like that.

On the other hand, a pin insertion shaft 23 is in contact with the head of the pin 4. In this state, the insertion block 20
When it moves downward, that is, in the insertion direction of the pin 4, the movement is transmitted to the insertion detection spring 21. Here, the insertion detecting spring 21 is provided with a preload that exceeds an insertion force caused by friction or the like generated between the pin 4 and the difference hole 3 when the pin 4 is inserted into the matrix board 2. Therefore, the insertion detection spring 21 transmits the movement of the insertion block 20 to the base 19 without being deformed. Base 19 at step 23b
The movement of the base 19 is transmitted to the pin insertion shaft 23, and the pin insertion shaft 23 pushes down the head of the pin 4 while the pin finger 12 is holding the pin 4 and the pin 4 is attached. Insert into hole 3.

When the flange 5 of the pin 4 comes into contact with the surface of the matrix board 2, the pin 4 is prevented from advancing in the insertion direction and stops. Even if the pin 4 is stopped, if the insertion block 20 further continues to move downward, the pin insertion shaft 23 also stops moving forward due to the stop of the pin 4, and the displacement of the insertion block 20 that continues moving forward is reduced. This is accumulated as bending of the insertion detection spring 21. When the insertion detection spring 21 bends, the gap between the insertion sensor 22 provided integrally with the insertion block 20 and the flange 23c of the pin insertion shaft 23 decreases. The insertion sensor 22 detects the change in the gap, detects whether the insertion of the pin 4 into the matrix board 2 is completed, or determines whether the pin 4 cannot be inserted due to another trouble, and stops the insertion block 20 from moving forward.

The control system detects the amount of movement of the insertion block 20 from the intended position based on information from the insertion sensor 22 to determine whether the insertion of the pin 4 has been successfully completed or not due to a trouble. Is set to make a judgment. When the insertion is completed, when the electromagnetic coil 18 is energized, the armature 17 is attracted to the electromagnetic coil 18. When the armature 17 is sucked and moves upward, the armature 1
The slide drum 11 integrated with the pin 7 is lifted upward, the tapered portion 13a of the pin finger 12 engaged with the hole 11a of the slide drum 11 is released, and the pin finger 12 is released from the restrained state. The pin 4 is released from the pin finger 12 by the elastic deformation of the pin grip 13 that opens radially outward. After the pin 4 is released, the insertion block 20 is retracted, whereby the insertion of the pin 4 into the matrix board 2 is completed. The operation of pulling out the pin 4 from the matrix board 2 is also performed by a combination of the operations described above. In addition,
If the control system determines that there is a pin 4 insertion trouble, the pin block 12 is retracted while holding the pin 4 with the pin finger 12.

FIG. 3 shows second and third embodiments of the present invention. In the second embodiment shown in FIG. 3A, a hole 11a of a slide drum 11 and a tapered portion 1 of a pin finger 12 are formed.
In order to reduce the frictional force of the engaging portion with the tapered portion 3a,
A ring-shaped projection 13b is provided on 3a. Similarly, in the third embodiment shown in FIG. 2B, the hole 11a of the slide drum 11 and the tapered portion 13a of the pin finger 12 are formed.
A ring-shaped projection 11b is provided in the hole 11a in order to reduce the frictional force of the engaging portion with the hole.

FIG. 4 is a side view of a pin insertion / extraction device according to the present invention using the pin hand 10 described above. In the figure, 25 is a drive motor, 26 is a motor pulley of the drive motor 25, 27 is a motor pulley 26 and a ball screw mechanism 29.
, A drive transmission toothed belt stretched between the pulleys 28, 30 is a ball screw shaft, and 31 is a ball nut.
Reference numeral 32 denotes a guide fixing portion fixed to a base arm 33 directly connected to a base of an intra-office wiring box (not shown). A guide sliding member 34 is supported movably in the direction of arrow B. The pin hand 10 attached to the pin 34 is also movable in the direction B, that is, the pin grip portion 13 of the pin finger can approach and separate from the matrix board 2. Slide member 34 and ball nut 3
1 is arranged side by side by a connecting bar 35 in a direction orthogonal to the moving direction B of the pin hand 10, and the ball screw mechanism 29 and the drive motor 25 are also arranged in the same direction in the moving direction B of the pin hand 10. The overall length, the overall length in the guide direction B of the slide member 34, and the overall length in the height direction of the ball screw mechanism 29 and the drive motor 25 are substantially the same. With such a configuration, the direction orthogonal to the surface of the matrix board 2, that is, the height direction can be reduced, and it can be housed in a limited box for intra-office wiring. Become.

Next, the pin insertion / extraction operation of the pin insertion / extraction device having such a configuration will be described. When the drive motor 25 rotates,
The rotational force drives the pulley 28 of the ball screw mechanism 29 to rotate via the toothed belt 27 stretched over the motor pulley 27. The rotational force causes the ball screw nut 31 to linearly move up and down via the ball screw shaft 30. The linear driving force applied to the ball screw nut 31 is transmitted to the connection bar 35 connected to the ball screw nut 31 to move the pin hand 10 in the B direction, and the pin hand 10 is moved by the pin grip 13 of the pin hand 10 described above. The operation of inserting and removing the pins 4 from the matrix board 2 is performed.

[0017]

As described above, according to the present invention, one end is divided into a plurality of parts so as to be freely opened and closed in the radial direction to form a pin holding part, and a tapered part is formed on the outer surface of the pin holding part. A pin gripping member having the other end supported by the pin insertion shaft, and an engaging surface surrounding the pin gripping member, slidably with respect to the pin gripping member, and engaging with the tapered portion of the pin gripping member. A cylindrical slide drum provided; a solenoid for releasing the engagement between the engagement surface of the slide drum and the tapered portion of the pin gripping member; and a suction force of the solenoid fitted and inserted into the slide drum. With a coil spring that resists, the opening and closing of the gripper that grips the pin is not performed by a swing mechanism as in the past, but by a cam mechanism between the tapered part provided on the outer surface and the engagement surface of the slide drum. It was small, It is possible to build an automated wiring system by the pin insertion / extraction method using the limited space in the wiring box installed in the office building, without making new investment. In addition, costs can be reduced by labor saving.

Further, according to the present invention, since the ring-shaped projection is provided on the tapered portion of the pin gripping member or the engagement surface of the slide drum, the engagement between the tapered portion of the pin gripping member and the engagement surface of the slide drum is provided. In this case, the frictional force can be reduced, and the pin can be smoothly gripped and released by the pin gripping member.

Further, according to the present invention, there is provided a guide mechanism for guiding a pin hand to approach and separate from a matrix board, and a guide mechanism for allowing a pin gripped by the pin hand to be inserted into and removed from a difference hole of the matrix board, and a driving source. A ball screw mechanism for converting the rotation of the motor into a linear motion, and a connecting member for connecting the ball screw mechanism and the guide mechanism. Since the guide mechanism, the ball screw mechanism and the motor are provided side by side, the matrix board 2 The height direction of the wiring box can be reduced, and it can be stored in a limited box for intra-office wiring. A management system can be constructed, and costs can be saved by labor saving without making new investments.

[Brief description of the drawings]

FIG. 1 is a sectional view of a pin hand according to the present invention.

FIG. 2 is an overall perspective view of a pin finger of the pin hand according to the present invention.

FIG. 3A is a cross-sectional view of a second embodiment of the pin hand according to the present invention, and FIG. 3B is a cross-sectional view of the third embodiment.

FIG. 4 is a side view of the pin insertion / extraction device according to the present invention.

FIG. 5 is a sectional view of a conventional pin hand.

FIG. 6 is a side view of a conventional pin insertion / extraction device.

[Explanation of symbols]

2 ... matrix board, 3 ... difference hole, 4 ... pin, 10
... Pin hand, 11 ... Slide drum, 11b, 13b
... Protrusion, 12 ... Pin finger, 13a ... Tapered portion, 17 ... Armature, 18 ... Electromagnetic coil, 25 ... Drive motor, 29
... ball screw mechanism, 34 ... slide member, 35 ... connecting bar.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Hirono 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Makoto Asakawa 3-9-1 Midoricho, Musashino-shi, Tokyo (56) References JP-A-5-121112 (JP, A) JP-A-5-57640 (JP, A) JP-A 61-205774 (JP, U) JP-A 60-131367 (JP, U) Shokai Sho 53-111499 (JP, U) Shoko Sho 12-8855 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 43/20 H01R 43 / twenty two

Claims (6)

(57) [Claims] An end is divided into a plurality so that one end can be freely opened and closed in a radial direction to form a pin grip portion, and a tapered portion is formed on an outer surface of the pin grip portion, and the other end is supported by a pin insertion shaft. A cylindrical slide drum provided with an engaging surface surrounding the pin gripping member and slidable with respect to the pin gripping member and engaging with a tapered portion of the pin gripping member; A solenoid that releases the engagement between the engagement surface of the slide drum and the tapered portion of the pin gripping member, and a coil spring that resists the attraction force of the solenoid inserted into the slide drum. Characteristic pin hand. 2. The pin hand according to claim 1, wherein the pin holding portion of the pin holding member has an opening behavior. 3. The pin hand according to claim 1, wherein a ring-shaped projection is provided on a tapered portion of said pin gripping member. 4. The pin hand according to claim 1, wherein a ring-shaped projection is provided on an engagement surface of said slide drum. 5. A guide mechanism which guides the pin hand according to claim 1 so as to approach and separate from the matrix board, and enables a pin gripped by the pin hand to be inserted into and removed from a difference hole of the matrix board, and a motor as a drive source. A ball screw mechanism for converting the rotation of the ball screw into a linear motion, and a connecting member for connecting the ball screw mechanism and the guide mechanism, wherein the guide mechanism, the ball screw mechanism and the motor are juxtaposed. Insertion / extraction device. 6. The pin insertion / extraction device according to claim 5,
A pin insertion / extraction device, wherein a total length of the pin hand in the insertion / extraction direction, a total length of the guide mechanism in the guide direction, and a total length of the ball screw mechanism and the motor in the height direction are substantially the same.