JPH038397A - Hand head for printed board insertion and pull out device - Google Patents

Abstract

PURPOSE:To insert and pull out easily in simple construction by making an end face of a hand head abut on a front panel of a printed board, attracting a contact side with a projecting piece of the printed board, and allowing an electromagnetic plunger to be inserted into and pulled out from a projecting piece hole. CONSTITUTION:An end face 11 of a hand head 10 mounted with a handler 35 which may make a reciprocating motion vertically, horizontally and in front and rear freely, is made to abut on a front panel 3 of a printed board 2 so that a contact side of the hand head 10 may be adhered with a projecting piece 4 of the printed board 2. When an electromagnetic plunger is arranged to go through a penetration hole 5 of the projecting piece 4 and the handler 35 is moved backward, the printed board 2 can be easily pulled out from an electronic device rack 1. The printed board can be inserted in a similar manner, which makes it possible to insert and pull out the printed board easily and definitely in simple construction.

Description

[Detailed Description of the Invention] [Summary] A hand for a printed board insertion/extraction device with a simple structure and low cost, which relates to a handler that inserts/extracts printed boards arranged in parallel to an electronic device rack, and in particular relates to a hand head attached to the head of the handler. The head is equipped with a handler that reciprocates as desired in the vertical, horizontal, and front-back directions, and is installed on the front of an electronic device rack to insert and remove printed boards mounted in parallel on the electronic device rack. In the apparatus, a hand head is attached to the head of the handler in order to grip and hold the printed board, the head end surface contacting the front plate of the printed board, and the side surface of the protrusion plate part of the front plate. An electromagnetic plunger that can be inserted into and removed from the through hole of the protrusion plate is provided on the adhesion side, and an electromagnet that can be freely attracted to the protrusion plate is attached to the adhesion side. with the head end surface in contact with the front plate, the electromagnet is actuated to attract the contact side surface to the projecting plate part, and the electromagnetic plunger is fitted into the through hole. , the printed board is gripped and held.

[Industrial Field of Application] The present invention relates to a handler that inserts and removes printed boards arranged in parallel on an electronic device rack, and particularly relates to a hand head that is attached to the head of the handler.

In recent years, electronic devices in which a large number of printed circuit boards are mounted in parallel on a rack have been widely used.

In such electronic devices, a large number of installed printed boards may be replaced in order to deal with failures or change functions.

[Prior art] Conventionally, such printed board replacement work was done by manually pulling out the printed board inserted into the electronic device rack and inserting it while looking at the printed board layout design drawing. It was inserted into the guide rail of the electronic equipment rack that was to be replaced and plugged into the connector mounted on the backboard.

However, replacing a large number of printed boards manually is very labor intensive, so in recent years, a frame equipped with a handler that reciprocates as desired in the vertical, horizontal, and front-back directions is installed on the front of the electronic equipment rack. A printed board insertion/extraction device is being provided in which a hand head for gripping and holding one roll of pudding is attached to the head of the handler, and the printed board is automatically replaced.

[Problems to be Solved by the Invention] In this case, there is a problem in that making the hand head a robot structure equipped with a sensor etc. increases the equipment cost.

The present invention was created in view of these points, and an object of the present invention is to provide a hand head for a printed board insertion/extraction device that has a simple structure and is low in cost.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a handler 35 that reciprocates as desired in the vertical, horizontal, and front-back directions, as illustrated in FIG. In an insertion/extraction device for inserting/extracting printed boards 2 mounted in parallel on a rack 1, a hand head 10 is mounted on the head of a handler 35 in order to grip and hold the printed boards 2.

The hand head 10 has a front plate 3 attached to a printed board 2.
It has a head end surface 11 that comes into contact with the head end surface 11, and a close contact side surface 12 that comes into close contact with the side surface portion of the protrusion plate part 4 of the printed board 2 formed by extending a part of the front plate 3 toward the front side.

An electromagnetic plunger 15 that can be inserted into and removed from the through hole 5 of the protrusion plate part 4 is provided on the contact side surface 12 of the hand head 10, and an electromagnet 18 that can be freely attracted to the protrusion plate part 4 is provided on the contact side surface 12. Provided for.

Then, with the head end surface 11 in contact with the front plate 3,
The electromagnet 18 is actuated to attract the contact side surface 12 to the projecting piece plate part 4, and the electromagnetic plunger 15 is fitted into the through hole 5, thereby gripping and holding the printed board 2.

[Function] As described above, the hand head according to the present invention includes a head end surface 11 that comes into contact with the front plate 3 of the printed board 2, and a projecting plate portion formed by extending a part of the front plate 3 toward the front side. 4, and an electromagnetic plunger 15 that can be freely fitted into and removed from the through hole 5 of the protrusion plate part 4 of the printed board 2 on the contact side face 12, and It is equipped with an electromagnet 18 that can be freely attracted to.

Therefore, in order to remove the printed circuit board 2 from the electronic equipment rack 1, the handler 35 is moved vertically and horizontally to a position facing the printed board 2 to be removed as shown in FIG. The head end face 11 is brought into contact with the front plate 3 by moving it forward.

Then, the electromagnet 18 is turned on to cause the contact side surface 12 to be attracted to the side surface of the protrusion plate part 4, and the solenoid 16 of the electromagnetic plunger 15 is turned off and the electromagnetic plunger 15 is attached to the protrusion plate part 4.
into the through hole 5 of.

With this, the hand head 10 grips and holds the pudding 1 and 2.

Therefore, by retreating the handler 35, the printed board 2 can be removed from the electronic device rack 1.

Furthermore, in order to insert the printed circuit board 2 gripped by the hand head IO into the electronic equipment rack l, the handler 35 is driven vertically and horizontally as desired as shown in FIG. The printed board 2 is pushed forward into the guide rail of the electronic device rack 1 and plugged into the connector mounted on the backboard.

Thereafter, the electromagnet 18 is turned off to release the adhesion to the side surface of the protrusion plate part 4, and the solenoid 16 of the electromagnetic plunger 15 is turned on to move the electric plunger 15 into the through hole of the protrusion plate part 4. Pull it out and release the grip of the printed board 2.

Then, the handler 35 is moved backward and separated from the electronic device rack 1.

As described above, the function of gripping and releasing the printed board 2 is obtained by the electromagnetic plunger 15 and the electromagnet 18. That is, the hand head of the printed board insertion/extraction device of the present invention has a simple structure and is low in cost.

〔Example〕

The present invention will be specifically described below with reference to the drawings. Note that the same reference numerals indicate the same objects throughout the figures.

FIG. 1 is a diagram of an embodiment of the present invention, (a) is a perspective view, (b)
) is a partially cutaway view, and FIG. 2 is a diagram illustrating the present invention.

In FIG. 2, by inserting a printed board 2 into each of the guide rails arranged in parallel on the electronic device rack 1 and plugging it into a connector mounted on a backboard, a large number of printed boards 2 can be arranged in parallel to form an electronic device rack. It is housed inside.

30 is located at a predetermined position (
This is a frame for a printed board insertion/extraction device that can be vertically mounted at the position indicated by the chain line.

35 is a handler attached to the frame 30 that reciprocates as desired in the vertical, horizontal, and front-back directions.

The lower end portion is supported by the lower frame substrate of the frame frame 30, the upper end portion is supported by the upper frame member of the frame frame 30, and the prism 31 is slid back and forth on the lower frame substrate in the left and right direction (X-axis direction in the figure). The handler 35 is attached to the frame 30 freely, and the handler 35 is attached to the prism 31 so that it can freely slide back and forth in the vertical direction (Z-axis direction in the figure) along the prism 31.
It is attached to.

The handler 35 mounted horizontally on the prism 31 is, for example, a pneumatic cylinder, and the hand head 10 is attached to the head of a piston rod that reciprocates in the front-rear direction (Y-axis direction in the figure).
It is configured to be installed.

In detail, by screwing the lower end of the square column 31 into a feed screw (not shown) attached to the lower frame board, and rotating this feed screw with a step motor (not shown), the square column 31 can be mounted on an electronic device rack. 1 to a predetermined position in the left and right direction.

In addition, the side surface of the cylinder of the handler 35 is attached to the prismatic column 31.
The handler 35 is screwed into a feed screw (not shown) installed along the electronic device rack 1, and by rotating this feed screw with a step motor (not shown), the handler 35 is placed in a predetermined position in the vertical direction on the front of the electronic equipment rack 1. It is configured to move.

On the other hand, a flange 36 is provided on the head side of the handler 35,
The hand head 10 is attached to this flange 36.As shown in detail in FIG. 1, the hand head 10 has a head end surface 11 on the electronic device rack l side.
A part of the handler 3 is cut out to provide a close contact side surface 12 parallel to the protrusion plate part 4 attached to the printed board 2.
It has a substantially prismatic shape with a flange 20 provided on the 5 side.

The hand head 10 has a ring-shaped elastic body 22 made of elastic rubber, for example, interposed between both flanges 20.36, and the four corners are connected with bolts 21, so that the handler 3
It is attached to the head of 5.

On the other hand, a front plate 3 is attached to each printed board 2 so as to be perpendicular to the front side edge thereof.

Then, a part of the front plate 3 is extended toward the front side to provide a rectangular protrusion plate part 4 parallel to the mounting surface of the printed board 2, and the electromagnetic part of the hand head lO is placed in the center of this protrusion plate part 4. A through hole 5 into which the plunger 15 can be fitted and removed in a gate-like manner is provided, and a pair of guide holes 6 are provided symmetrically with the through hole 5 in between.

This guide hole 6 is a hole into which a guide pin 19 protruding from the contact side surface 12 of the hand head 10 is fitted.

A solenoid 16 is embedded in the center of the contact side surface 12 of the hand head 10, and an electromagnetic plunger 15 made of a magnetic rod is inserted into the axial hole of the solenoid 16.
6 is turned on, the electromagnetic plunger 15 is drawn into the solenoid 16.

A thin flanged pin (not shown) made of a non-magnetic material is attached to the rear of the electromagnetic plunger 15, and a compression coil spring 17 is attached to the outer periphery of the pin portion of the flanged bottle.

Therefore, when solenoid 16 is off, spring 17
Due to the elasticity, the tip of the electromagnetic plunger 15 protrudes from the contact side surface 12 and fits into the through hole 5 of the protrusion plate portion 4.

Note that when the solenoid 16 is off, the electromagnetic plunger 15 is pulled out from the axial hole of the solenoid 16 toward the front because the flange of the flanged bottle engages the rear end surface of the yoke provided on the outer periphery of the solenoid 16. is prevented from coming out.

Further, a pair of electromagnets 18 are attached to the hand head IO symmetrically with the electromagnetic plunger 15 in between so that the magnetic pole faces substantially coincide with the contact side surfaces 12.

Hereinafter, the action of removing the printed board 2 of the hand head 10 configured as described above will be explained with reference to FIG. 3.

As shown in FIG. 3(a), the handler 35 is driven vertically and horizontally to move to a position facing the printed board 2 to be removed. After that, the handler 35 is moved forward.

At this time, the solenoid 16 is turned on to draw the electromagnetic plunger 15 into the contact side surface 12, and the electromagnet 18 is turned off to eliminate the attraction force.

In this state, when the handler 35 is further advanced, the third
As shown in Figure (b), the head end surface II of the hand head 10
comes into contact with the front surface of the front plate 3, and the forward movement of the hand head IO is completed.

Next, as shown in FIG. 3(C), first, the electromagnet 18 is turned on, and the contact side surface 12 is attracted to the side surface of the protrusion plate part 4.

At this time, the handler 35 and the hand head 10 are connected via a plurality of ring-shaped elastic bodies 22 (see FIG. 1(b)). Therefore, by appropriately contracting each ring-shaped elastic body 22, the contact side surface 12 is tilted freely to a certain extent, so that the side surface of the protrusion plate portion 4 of the printed board 2 and the contact side surface 12 of the hand head IO are brought into close contact. .

Furthermore, since the guide pin 19 (shown in FIG. 1(a)) is inserted into the guide hole 6 of the protrusion plate portion 4, the electromagnetic plunger 1
5 and the axis of the through hole 5 coincide with each other.

Thereafter, the solenoid 16 is turned off, the electromagnetic plunger 15 is caused to protrude by the spring pressure of the spring 17, and the tip of the electromagnetic plunger 15 is fitted into the through hole 5 of the projecting piece plate portion 4.

That is, the head end surface 11 of the hand head 10 is in contact with the front plate 3, the contact side surface 12 is attracted to the protrusion plate part 4, and the electromagnetic plunger 15 is fitted into the through hole 5 of the protrusion plate part 4. Therefore, the hand head 10 reliably grips the printed board 2 in a position that allows it to be inserted into or removed from the electronic device rack 1.

Then, as shown in FIG. 3(d), the printed board 2 can be removed from the electronic device rack 1 by moving the handler 35 backward.

Next, the operation of inserting the printed board 2 will be explained with reference to FIG.

As shown in FIG. 4(a), with the printed board 2 gripped by the hand head 10, the handler 35 is driven vertically and horizontally as desired to move it to a predetermined position to be inserted. Then, the handler 35 is moved forward and the printed board 2 is inserted into the guide rail of the electronic device rack 1.

At this time, 16 solenoids (15 electromagnetic plungers are turned off)
Of course, the electromagnet 18 is turned on and the contact side surface 12 is attracted to the protrusion plate part 4.

Then, the handler 35 is further advanced, and as shown in FIG. 4(b), the printed board 2 is pushed into the electronic device rack while pushing the front board 3 with the head end face 11, and the printed board 2 is plugged into the connector mounted on the back board. Let it in.

When the plug-in is completed, as shown in FIG. 4(C), the solenoid 16 of the electromagnetic plunger 15 is turned on and the electromagnetic plunger 15 is pulled out from the through hole 5 of the protrusion plate part 4, and the electromagnet 18 is turned off. Thus, the adhesion to the side surface of the protrusion plate part 4 is released.

Next, as shown in FIG. 4(d), the handler 35 is moved backward and separated from the electronic device rack 1.

〔Effect of the invention〕

As explained above, the present invention brings the end face of the hand head into contact with the front plate attached to the printed board, and makes the contact side surface of the hand head stick to the protrusion plate part of the printed board.
In addition, the hand head is configured to grip and hold a printed board by engaging an electromagnetic plunger with a hole in a protrusion plate, and has excellent practical effects such as simple structure and low cost. .

[Brief explanation of the drawing]

Fig. 1 is a diagram of an embodiment of the present invention, (a) is a perspective view, (b) is a partially cutaway view, and Fig. 2 is a diagram illustrating the structure of the insertion/extraction device according to the present invention for wood. It is. In the figure, ■ is an electronic device rack, 2 is a printed board, 4 is a protrusion plate, 6 is a guide hole, 11 is a head end face, 15 is an electromagnetic plunger 17 is a spring, 22 is a ring-shaped elastic body, 3 is a positive A face plate, 5 a through hole, 10 a hand head, 12 a contact side surface, 16 a solenoid, 2036 a flange, 30 a frame, and 35 a handler. (0-) Fig. 2 is a perspective view showing the structure of the insertion and removal of the 3rd insertion and removal of the 17th leap of the large stopper example of the present invention! -c〉Tohenoto

Claims (1)

[Scope of Claims] Prints that are equipped with a handler (35) that reciprocates as desired in the vertical, horizontal, and front-back directions, are installed in front of an electronic device rack (1), and are mounted in parallel on the electronic device rack (1). Board (2
), the hand head is attached to the head of the handler (35) in order to grip and hold the printed board (2), and the hand head is attached to the head of the handler (35), and the front plate (3) of the printed board (2)
), and a close contact side surface (12) that comes into close contact with the side surface of the protruding plate part (4) of the front plate (3), and the protruding plate part (4) has a penetrating surface. An electromagnetic plunger (15) that can be freely inserted into and removed from the hole (5) is provided on the adhering side surface portion, and an electromagnet (18) that can be freely attracted to the protrusion plate portion (4) is provided.
) is provided on the close contact side surface, and with the head end surface (11) in contact with the front plate (3), the electromagnet (18) is operated to close the close contact side surface (12).
is attracted to the projecting piece plate portion (4), and the electromagnetic plunger (15) is fitted into the through hole (5) to grip and hold the printed board (2). A hand head for a printed board insertion/extraction device.