JP3725646B2 - Safety device for electronic component mounting machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a safety device for an electronic component mounting machine that can safely and smoothly perform various operations on the electronic component mounting machine when mounting electronic components.
[0002]
[Prior art]
Conventionally, in an electronic component mounting machine used in the industry such as mounting and assembly of electronic components, an operator's hand enters the movable part during operation or standby of the mounting machine in order to ensure the safety of the worker. This insertion space is equipped with an openable / closable safety guard. When performing various operations on the mounting machine, the operator opens the safety guard to operate the microswitch, The power supply to the drive power supply was canceled so that the power supply for operation was not turned on. (For example, refer to Japanese Patent Laid-Open No. 62-163217).
[0003]
However, this device is a hinged door type in which the safety guard described above is attached to the body of the mounting machine, so that during the work in the mounting machine, the knob of the microswitch hits the operator's hand or body, or from the outside If an operator accidentally touches an open safety guard, the safety guard closes, the microswitch is operated, and power is supplied to the drive power supply of the mounting machine, which may cause harm to the worker who is working. It was.
[0004]
In addition, when a large-scale operation such as adjustment or replacement is performed on the inside of the mounting machine, the opened safety guard cannot be performed smoothly because it interferes with these operations.
[0005]
In particular, the concealment by this safety guard is only for the insertion space where the operator's hand etc. is inserted, so the parts feeders that stick out of the main body of the mounting machine are exposed. Touching your body or clothes may cause an unexpected accident.
Etc. have various problems.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above-described problems, and is provided with a detachable casing that closes and opens in correspondence with an opening for working of an electronic component mounting machine. Switching means for performing on / off switching of operation / stop of each driving means of the machine at the same time is provided on the mounting machine side, and an operating means for the switching means is provided on the housing. Each drive means is turned on at the time of facing up, and each drive means is turned off at the time of non-facing, so that the mounting machine can be made compact, and large-scale adjustment and replacement work is smooth and reliable. It is an object of the present invention to provide a safety device for an electronic component mounting machine that can be performed.
[0007]
[Means for Solving the Problems]
The means of the present invention for achieving the above-mentioned object is as follows:
Corresponding to the opening for working with respect to the mounting portion provided in the electronic component mounting machine, a detachable housing for closing and opening the opening from the outside, and provided in the electronic component mounting machine Switching means for collectively switching on / off of operation / stop of each driving means in the electronic component mounting machine, and each drive provided at the casing and moving to the switching means when facing the switching means Means for turning on and each driving means being turned off at the time of non-facing,
It is in the structure of the safety device for electronic component mounting machines provided with.
[0008]
Also,
Corresponding to the opening for working with respect to the mounting portion provided in the electronic component mounting machine, a detachable housing for closing and opening the opening from the outside, and provided in the electronic component mounting machine Switching means for collectively switching on / off operation / stop of each driving means in the electronic component mounting machine, operating means provided in the casing corresponding to the switching means, and provided in the casing A work window for working with respect to the mounting part through the opening, and when the work window is opened by being provided rotatably on the work window, the outside of the housing and the opening are in communication with each other and closed. An opening / closing body whose opening is cut off from the outside of the housing, and when the opening / closing body rotates and closes the work window in conjunction with the opening / closing body, the driving means are turned on, Interlocking means in which each driving means is turned off when opened; and
It is in the structure of the safety device for electronic component mounting machines provided with.
[0009]
Furthermore,
In a safety device for an electronic component mounting machine comprising an electronic component mounting machine and a housing that can be moved toward and away from the electronic component mounting machine,
The drive source of each drive means and its wiring / pipe in the electronic component mounting machine are provided on the electronic component mounting machine side or in the vicinity of the electronic component mounting machine.
[0010]
The electronic component mounting machine and the housing are provided with fixing means for making the electronic component mounting machine and the housing detachable by operating means.
[0011]
The opening / closing body is partially or entirely formed of a permeable member.
[0012]
【Example】
Next, an embodiment of a safety device for an electronic component mounting machine according to the present invention will be described with reference to the drawings.
[0013]
In FIG. 1 to FIG. 3, A is a safety device for an electronic component mounting machine, which receives an electronic component b such as a chip component or an IC component from its supply unit m consisting of a part feeder, a component placement unit, and the like, to a mounting unit n. The electronic component mounting machine S is used for transporting and mounting a predetermined number on a printed circuit board c at an appropriate position. The electronic component mounting machine S is configured such that the mounting head e of the electronic component b is predetermined by each driving means. Operated with high precision by numerical control in the direction.
[0014]
The configuration of each driving means is such that a movable body f, to which a plurality of sets of mounting heads e having suction nozzles (not shown) by pneumatic pressure are attached, is moved in the front-rear direction by advancing and retreating means g and moved in the left-right direction by moving means h It is attached freely.
[0015]
The mounting head e is attached to the movable body f by an elevating means j and a rotating means k so as to be movable up and down and rotatable. In addition, an operating means (not shown) for a supply switching valve of the suction nozzle In addition, for the drive system necessary for the operation of the electronic component mounting machine S such as the conveyance means for the printed circuit board c, the above-mentioned drive means is a target.
[0016]
And the safety device A for electronic component mounting machines of the Example of this invention is fundamentally comprised by the housing 1, the switching means 2, and the action | operation means 3. FIG.
[0017]
Among these, the above-described casing 1 is formed in a rectangular box shape, and corresponds to the opening 4 for work with respect to the mounting portion n provided in the electronic component mounting machine S. As shown in FIGS. 1 and 2, it is provided for each of the openings 4 before and after the electronic component mounting machine S (only one of the front and rear may be provided). As shown in FIG. 4, a work window 5 a having one side wall communicating with the opening 4 and a work window 5 b opened at the upper portion of the housing 1 are provided.
[0018]
Further, on the lower side, a rolling member 6 made of a wheel with a stopper such as a low-friction free wheel (caster) is attached, and the casing 1 is provided so as to be able to contact and separate, that is, to be movable. As shown in FIGS. 2 and 3 (b), when the housing 1 corresponds to the opening 4, the opening 4 is closed to prevent entry of an operator's hand or the like from the opening 4. As shown in FIG. 3A, when the housing 1 is separated from the electronic component mounting machine S and is removed and moved to another place, the obstruction of the opening 4 is released and opened.
[0019]
For this movement, it is convenient to operate with a pulling handle 30 provided on the front side of the housing 1.
[0020]
The switching means 2 described above is provided in the electronic component mounting machine S, and on / off switching of operation / stop of each of the driving means g, h, j, k and the other driving systems described above in the electronic component mounting machine S is performed. Is fixed to the side wall of the body 7 in the electronic component mounting machine S, and a conventional sensor such as a limit switch or a proximity switch is used. This detection signal is not shown. It is sent to the control means and becomes the basis of the control of each driving means described above.
[0021]
The actuating means 3 described above is attached to the side wall of the housing 1, and each driving means described above is turned on when facing the switching means 2, and each driving means is turned off when not facing each other. The key switch body 10 corresponding to the detection hole 9 of the switching means 2 is fixed to the tip of the main body 8.
[0022]
The first and second examples of the operation of the operating means 3 with respect to the switching means 2 are as follows: the housing 1 is separated from the electronic component mounting machine S by the movement of the rolling member 6; In addition, the switching means 2 and the operating means 3 are brought into and out of engagement with each other by being close to the electronic component mounting machine S, that is, when the housing 1 is moved.
[0023]
In the second example, the operating means 3 is advanced or retracted with respect to the switching means 2 via the linkage means by an opening / closing operation of the opening / closing body described later.
[0024]
The first example described above is an example in which the entire housing 1 moves. When the housing 1 is attached to the electronic component mounting machine S, the electronic device mounting machine S and the housing 1 are connected to the operating means. 11, the fixing means 12 which makes these electronic component mounting machines S and the housing 1 detachable is provided.
[0025]
The fixing means 12 regulates the movement of the casing 1 in the front-rear direction with respect to the electronic component mounting machine S, and two sets are provided on both sides of the working window 5a of the casing 1, and FIG. As shown in an enlarged view in FIG. 5, a substantially annular receiving member 14 is fixed to a side wall of the body 7 of the electronic component mounting machine S via an attachment member 13, and a lever 15 corresponding to the receiving member 14 is attached to the lever 15. On the other hand, a stop member 16 that is rotated in the direction indicated by the arrow p in FIG.
[0026]
As shown in FIG. 5, the stopper member 16 has a U-shaped locking portion formed on the receiving member 14, and is pivotally supported by the frame member 31. When the U-shaped opening of the stopper member 16 is opposed to the receiving member 14, the stopper member 16 is rotated by extending the stopper member 16 toward the receiving member 14. Then, as shown in FIG. 5, the receiving member 14 and the stopper member 16 are connected.
[0027]
The second operation example of the operating means 3 includes an opening / closing body 17 linked to the operating means 3 and an interlocking means 18.
[0028]
The opening / closing body 17 is formed so as to have a substantially “cross-sectional shape” and can be pivoted upwardly by a pivotal mounting member 19 such as a hinge on the work window 5b at the upper part of the housing 1. When the work window 5b is opened, the outside of the housing 1 communicates with the opening 4 via the work window 5a. When the work window 5b is closed, the opening 4 is blocked from the outside of the housing 1. An opening / closing handle 20 is provided below the rising piece of the body 17.
[0029]
The opening / closing body 17 is partially or entirely formed of a permeable member such as an acrylic plate or a wire mesh, and the state of the mounting portion n in the electronic component mounting machine S through the work window 5a and the opening 4 is a box. 1 It is made visible from outside.
[0030]
Furthermore, the opening limit position of the opening / closing body 17 can be fixed between the middle of the opening / closing body 17 and the housing 1 by a stopper 21 with a gas damper.
[0031]
Further, as shown in FIG. 4, the interlocking means 18 is connected to the opening / closing body 17 and the actuating means 3 so that when the opening / closing body 17 rotates and closes the work window 5b, each driving means is turned on. Each driving means is configured to be in an off state when the working window 5b is opened.
[0032]
The structure is such that the main body 8 of the actuating means 3 is attached to the horizontal guide 22 so as to be able to advance and retreat, and one end of a bell crank 24 that rotates about the pivot shaft 23 is pivotally supported on the main body 8.
[0033]
The other end of the bell crank 24 is supported by the other end of a link bar 25 whose one end is pivotally supported by the opening / closing body 17, and the link bar 25 and the bell crank 24 are rotated by the opening / closing body 17. By moving the main body 8 of the actuating means 3 back and forth, the key switch body 10 of the actuating means 3 faces the detection hole 9 of the switching means 2 directly or non-facing.
[0034]
In addition, by providing the electronic component mounting machine S and the casing 1 with positioning means 26 for positioning when connecting the electronic component mounting machine S and the casing 1, the fixing means 12 can easily couple the S and 1, and the left and right sides of the casing 1 can be easily connected. In addition, the movement in the vertical direction is restricted, and it is preferably provided on both sides of the surface of the housing 1 corresponding to the electronic component mounting machine S.
[0035]
And this positioning means 26 is comprised by providing the positioning pin 28 provided in the housing 1 in the receiving hole 27 drilled in the attachment member 13 of the electronic component mounting machine S so that engagement / disengagement is possible.
[0036]
The above-described releasing operation of the fixing means 12 can be performed by the operating means 11 remotely from the fixing means 12, and as shown in FIG. 35, one end of the operating rod 35 is engaged with the lever 15 of the fixing means 12, and the other end of the operating rod 35 is engaged with the push piece 36 provided on the upper portion of the pull handle 30 of the housing 1. I'm allowed.
[0037]
When the fixing means 12 is in operation, when the pressing piece 36 is pushed while holding the pulling handle 30, the operating rod 35 rotates about the rotation shaft 34, and the lever 15 of the fixing means 12 is moved to the arrow p in FIG. Unlocking is done by pushing in the direction shown in.
[0038]
It should be noted that the drive means g, h, j, k in the electronic component mounting machine S, the driving sources of other driving systems, and the wiring / piping and switch members are connected to the electronic component mounting machine S side or the electronic component mounting machine. Provided in the vicinity of S, that is, by not providing the drive means g, h, j, k and other drive system drive sources and wiring / piping thereof on the housing 1 side during operation, An accident in which these members malfunction due to the body hitting these members is prevented in advance.
[0039]
Next, the operation of the safety device A for an electronic component mounting machine according to the embodiment of the present invention configured as described above will be described based on the example shown in FIGS.
[0040]
First, referring to FIG. 2, an example in which the apparatus A of the present embodiment is attached to the right side of the electronic component mounting machine S will be described. The housing 1 is held by the handle 30 and corresponds to the opening 4 of the mounting machine S. The housing 1 is directly opposed to the correct mounting position by the engagement by the positioning means 26, and the fixing means 12 has the U-shaped opening of the stopper member 16 abutted against the receiving member 14, Further, when the housing 1 is pushed in, the stop member 16 rotates, and as shown in FIG. 5, the stop member 16 and the receiving member 14 are connected, and the mounting machine S and the housing 1 are integrated. .
[0041]
As a result, the opening 4 is concealed by the housing 1 so that there is no gap for the operator's hand or body to enter, and also the entry of other objects is prevented, and the electronic component mounting machine S is in operation. In addition, the operator's accident to the movable part is prevented in advance, and there is no damage to the mounting machine S due to mixing of other objects, and from the opening / closing body 17 formed to be permeable, through the work window 5a and the opening part 4. Since the state of the movable part can be visually checked, a desired inspection or the like can be performed.
[0042]
In addition, since the drive means g, h, j, k of the movable part and the operation signals of the other drive systems are configured to be performed via the switching means 2, the circuit is configured as described above. When the body 1 faces the predetermined position of the mounting machine S and the operating means 3 of the housing 1 is engaged, the circuit for movement is turned on, and each driving means g, h, j, k and others The drive system is prepared for operation, and when the start switch is turned on, it operates according to a predetermined program input to the control means.
[0043]
When the electronic component mounting machine S is in operation, the opening / closing body 17 attached to the upper part of the housing 1 is opened and a predetermined operation is performed through the opening 4 from the work window 5 when replacing the feeder (feeder) for the electronic component b. Can be done.
[0044]
At this time, the switching means 2 is such that when the opening / closing body 17 is opened, the operating means 3 moves back along the horizontal guide 22 via the linkage means 11, and the key switch body 10 is removed from the detection hole 9 of the switching means 2. Therefore, the driving means g, h, j, k, and other driving system moving circuits are turned off, all driving is stopped, and the opening / closing body 17 is closed to operate. Since the drive circuit is not turned on at all until the means 3 is engaged with the switching means 2, the operator can perform desired work with peace of mind.
[0045]
In addition, when the relatively large-scale work is performed on the printed circuit board transport unit or the like located at the center of the mounting machine S, the opening 4 is inserted into the operator's head, body, hand, etc., and the work is relaxed. Space is required, and in this case, the case 1 can be solved by removing the housing 1 from the mounting machine S.
[0046]
The entire depth of the housing 1 is narrow due to a small amount of protrusion of the supply part m of the electronic component b, and the release operation of the fixing means 12 can be easily reached with respect to the lever 15.
[0047]
Therefore, if the lever 15 is operated in the direction of the arrow p in FIG. 5, the stop member 16 in the fixing means 12 is rotated and disengaged from the receiving member 14, so that the fixing of the housing 1 is released and the rolling means is released. Since the movement by 6 becomes easy, it can convey to the position which does not become obstructive to work.
[0048]
Next, referring to FIG. 2, an example in which the apparatus A of the present embodiment is attached to the left side of the electronic component mounting machine S will be described. The casing 1 is formed with a longer depth than the above-described one casing. This is effective when the amount of protrusion of the supply unit m from the mounting machine S is large, and the basic action is the same as in the above example.
[0049]
In this example, since the depth of the housing 1 is long, the releasing operation of the fixing means 12 can be performed remotely to facilitate the operation.
[0050]
When releasing the connection of the housing 1 with the electronic component mounting machine S, when the pressing piece 36 is pushed while holding the pulling handle 30, the operating rod 35 rotates around the rotation shaft 34, and the fixing means 12 is pressed. 5 is pushed in the direction indicated by the arrow p in FIG. 5 and the stop member 16 rotates, and the U-shaped opening faces the receiving member 14 side, so that the fixing of the stop member 16 and the receiving member 16 is released. This is done by pulling the housing 1 by the puller 30 and separating it from the mounting machine S.
[0051]
【The invention's effect】
As described above, according to the present invention, the opening made of the electronic component mounting machine is provided with a housing made of a separate member from the electronic component mounting machine that covers the opening so that each drive means can be moved. It can be turned on and off, and work safety can be obtained.Particularly, the member that protrudes to the outside of the mounting machine is covered with this housing, so the exposed movable part is no longer exposed and the operator can Of course, other workers traveling around the mounting machine will not accidentally touch this exposed part.
[0052]
In addition, the mounting machine body can be made compact by providing a separate housing for this on / off operation, and the movement of the housing by the rolling member facilitates the transportation of the housing and opens the opening. Since there is no obstacle to the part, various smooth operations can be performed in a large space.
[0053]
Since the casing is provided with an opening / closing body for the work window, and the opening / closing body is linked to the operating means for turning on / off each drive means, reliable safety is ensured even in simple work from the work window. Demonstrated.
[0054]
Therefore, the operator's work with respect to the electronic component mounting machine can be selectively performed by removing the housing or by opening the opening / closing body, and can select an efficient one according to the work content.
[0055]
By providing the drive source of each driving means and its wiring / pipe in the electronic component mounting machine on the electronic component mounting machine side or in the vicinity of the electronic component mounting machine, the housing is compactly formed and the opening / closing body is opened. When working from the work window, there is no erroneous activation of the drive source of each drive means due to contact of the body or the like.
[0056]
By providing the electronic component mounting machine and the housing with fixing means that allows the electronic component mounting machine and the housing to be detachable by the operating means, the connection of the housing to the electronic component mounting machine is ensured.
[0057]
By forming a part or all of the opening / closing body with a permeable member, the inside of the electronic component mounting machine can be visually inspected during operation.
It has a special effect such as.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a safety device for an electronic component mounting machine according to the present invention, with the top portion of the electronic component mounting machine cut away.
FIG. 2 is a side view of FIG.
3A and 3B are front views of FIG. 1, in which FIG. 3A shows a state in which the housing is removed, and FIG. 3B shows a state in which the housing is attached.
FIG. 4 is a longitudinal side view showing a main part of the apparatus in FIG. 1;
FIG. 5 is an explanatory diagram showing an enlarged main part in FIG. 4;
[Explanation of symbols]
S Electronic component mounting machine n Mounting part g, h, j, k Each drive means 1 Housing 2 Switching means 3 Actuating means 4 Openings 5a, 5b Work window 17 Opening / closing body 18 Interlocking means

Claims (5)

Corresponding to the opening for working with respect to the mounting portion provided in the electronic component mounting machine, a detachable housing for closing and opening the opening from the outside, and provided in the electronic component mounting machine Switching means for collectively switching on / off operation / stop of each driving means in the electronic component mounting machine, and each drive at the time of facing the switching means by providing the casing and moving the casing. A safety device for an electronic component mounting machine, comprising: an operating means in which the driving means is in an on state and each driving means is in an off state when not facing each other. Corresponding to the opening for working with respect to the mounting portion provided in the electronic component mounting machine, a detachable housing for closing and opening the opening from the outside, and provided in the electronic component mounting machine Switching means for collectively performing on / off switching of operation / stop of each driving means in the electronic component mounting machine, operating means provided in the casing corresponding to the switching means, and provided in the casing A working window for working with respect to the mounting portion through the opening, and the opening when the working window is opened by being provided rotatably on the working window; An opening / closing body whose portion is cut off from the outside of the housing, and when the opening / closing body rotates and closes the work window in conjunction with the opening / closing body, the driving means are turned on to open the work window. And interlocking means that each driving means is turned off. Preparative safety device for an electronic component mounting apparatus according to claim. In a safety device for an electronic component mounting machine comprising an electronic component mounting machine and a housing that can be moved toward and away from the electronic component mounting machine,
3. The electronic component mounting machine according to claim 1, wherein a driving source of each driving means and wiring / piping thereof in the electronic component mounting machine are provided on the electronic component mounting machine side or in the vicinity of the electronic component mounting machine. Safety device. In a safety device for an electronic component mounting machine comprising an electronic component mounting machine and a housing that can be moved toward and away from the electronic component mounting machine,
3. The safety for an electronic component mounting machine according to claim 1, wherein a fixing means is provided on the electronic component mounting machine and the housing so that the electronic component mounting machine and the housing are detachable by operating means. apparatus. The safety device for an electronic component mounting machine according to claim 2, wherein a part or all of the opening / closing body is formed of a permeable member.

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