JPH0760595A - Cover device for transfer machine - Google Patents

Abstract

(57) [Summary] [Purpose] After the machine inspection, work inspection, or work removal work, the top cover may be closed while the side cover remains open, and the machining operation may start. To prevent. A cover device of a transfer machine includes a plurality of processing stations 1 arranged at predetermined intervals, a transfer mechanism 3 for transferring a work to the processing stations 1 all at once, and an outside of a work transfer path between the processing stations 1. And a fixed cover 4 for covering. Openings 5 and 9 are provided on the upper surface and at least one side surface of the fixed cover 4. A top cover 6 is attached to the top opening 5 so as to be openable and closable. A side cover 11 is openably and closably attached to the side opening 9. A blocking mechanism 14 is provided between the upper surface cover 6 and the side surface cover 11 to prevent the upper surface cover 6 from being closed when the side surface cover 11 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer machine, and more particularly to a cover device for covering a work transfer path.

[0002]

2. Description of the Related Art Generally, a transfer machine has a plurality of processing stations arranged at predetermined intervals along a work transfer path, and the transfer mechanism simultaneously transfers the work to the respective processing stations to perform processing. It is supposed to be done. In addition, a fixed cover is arranged between the processing stations, and the work transfer path is covered from the outside by the fixed cover. Then, an opening for inspecting the work is formed on the upper surface of the fixed cover,
A cover is openably and closably attached to the opening.

In the cover device of this type of transfer machine, an opening is often provided only on the upper surface of the fixed cover. Therefore, when inspecting a machine or a work, or when performing work in and out for inspecting a work or the like, there is a problem that the work direction is limited only to the upper side and the work is troublesome. In order to solve such a problem, there is also proposed a structure in which openings are provided on the side surfaces of the fixed cover and the covers are attached to the openings so that the covers can be opened and closed.

[0004]

However, in such a structure, after the machine and the work are inspected, the top cover is closed with the side opening left open without forgetting to close the side cover. , There was a risk of starting the processing operation. In this way, if the machining operation is started with the side cover left open, not only is there a danger of the operator touching the moving parts, but coolant and chips, etc. scatter outside the fixed cover through the side opening. There was a problem.

In order to solve such a problem, it may be considered that the top cover and the side cover are integrally formed so that the top opening and the side opening can be opened and closed at the same time. However, in the case of such a configuration, there is a new problem that the entire cover becomes large and heavy, and the opening and closing operation of the cover becomes heavy and difficult.

The present invention has been made by paying attention to the problems existing in such conventional techniques. An object of the present invention is to provide a cover device in a transfer machine that can easily handle the work by opening the top opening and the side opening of the fixed cover when inspecting a machine or a work. .

Another object of the present invention is to prevent the risk of starting the machining operation by closing the top cover with the side cover left open after the inspection work of the machine and the work. It is an object of the present invention to provide a cover device in a transfer machine that can be used.

A further object of the present invention is to provide a cover device in a transfer machine which can open and close the upper cover and the side cover independently and easily.

[0009]

In order to achieve the above object, according to the present invention, a plurality of processing stations are arranged at predetermined intervals along a work transfer path, and a work is simultaneously transferred to each processing station. In a cover device in a transfer machine, which includes a transfer mechanism for controlling the work transfer path and a fixed cover that covers the work transfer path from the outside between the processing stations, an opening for inspection is provided on the upper surface and at least one side surface of the fixed cover. , The upper surface cover is openably and closably attached to the upper surface opening, and the side surface cover is openably and closably attached to the side surface opening. The gist of the invention is to provide a blocking mechanism for blocking the cover from being closed.

Further, the gist of the present invention is that the upper surface opening and the side surface opening are continuous. Further, in the present invention, the engaging member fixed to the lower surface of the upper cover and the inner surface of the fixed cover are provided so as to interlock with the opening / closing operation of the side cover, and when the side cover is moved to the open position, The blocking mechanism is configured by a blocking member that is disposed within the movement locus of the engagement member and that deviates from the movement locus when the side cover is moved to the closed position, and engages when the side cover is in the open state. The gist of the present invention is that the member is configured to be engageable with the blocking member such that the top cover cannot be moved in the closing direction.

[0011]

[Operation] With the cover device for the transfer machine configured as described above, when performing machine inspection work or work loading / unloading work for work inspection, etc., after stopping the machining operation of the work, Open the cover and side cover respectively. As a result, both the top opening and the side opening of the fixed cover are opened, and the inspection work of the machine and the work, the work work of the work and the like can be easily performed through the both openings. In this case, if the upper surface opening and the side surface opening are continuous, a large opening is formed from the upper surface to the side surface of the cover.

After the inspection of the machine and the work, the side cover and the top cover are closed, and the work machining operation is started. At this time, if an attempt is made to close the upper cover with the side cover still open, the closing mechanism prevents the closing movement of the upper cover. Therefore, it is possible to prevent the risk of starting the processing operation by closing the upper cover with the side cover kept open. Therefore, it is possible to reliably prevent the worker from coming into contact with the movable portion and splashing of coolant, chips, and the like to the outside of the fixed cover through the side opening in the open state due to the machining operation.

Further, since the top cover and the side cover are separately attached to the top opening and the side opening of the fixed cover, the top cover and the side cover are independent from each other when inspecting the machine or the work. Then, it can be opened and closed lightly and easily.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a cover device in a transfer machine embodying the present invention will be described in detail below with reference to FIGS.

As shown in FIGS. 1 to 3, a plurality of processing stations 1 are installed at predetermined intervals, and a processing machine 2 is arranged opposite to each of the processing stations 1. A transfer mechanism 3 including a transfer bar and the like is arranged so as to extend through each processing station 1, and the work W1 is sequentially transferred to each processing station 1 by the transfer mechanism 3 and processed by each processing machine 2. To be done. The fixed cover 4 is arranged between the processing stations 1 so as to cover the work transfer path from the outside, and the work W1 is transferred in the fixed cover 4.

The upper surface opening 5 is formed on the upper surface of the fixed cover 4 between the processing stations 1. The upper surface cover 6 is attached to the upper surface opening 5 via a hinge 7 so as to be openable and closable, and a handle 8 is projectingly provided on the upper surface on the free end side thereof. Then, the upper cover 6 can be rotated by the handle 8 so that the upper cover 6 can be arranged at a position where the upper opening 5 is closed and a position where the upper opening 5 is opened.

A pair of side surface openings 9 are formed in a concave shape on both side surfaces of the fixed cover 4 so as to be continuous with both sides of the upper surface opening 5, and a support frame 10 is fixed to the inner surface of the fixed cover 4 along the opening edges. Has been done. The pair of side covers 11 are attached to the side opening 9 so as to be vertically movable between the support frame 10 and the inner surface of the fixed cover 4 so as to open and close.
A bent portion 12 is formed outward at the upper end thereof, and a handle 13 is projectingly provided on the outer surface of the upper end portion.

Then, the operator holds the handle 13 to disengage the bent portion 12 from the upper edge of the fixed cover 4 and move the side cover 11 up and down along the support frame 10 to close the side opening 9. It can be arranged in the open position and the open position. Further, when the side cover 11 is moved to the upper closed position, the side cover 11 can be held in the closed position by engaging the bent portion 12 with both side edges of the upper end of the side plate of the fixed cover 4. Then, when the side cover 11 is moved downward along the support frame 10 and the side cover 11 is supported by the lower end portion of the support frame 10, the side opening 9 is completely opened.

The blocking mechanism 14 is provided at two places between the upper surface cover 6 and the both side surface covers 11. And
When the upper surface cover 6 is closed while the side surface cover 11 is still open, the blocking mechanism 14 blocks the closing operation of the upper surface cover 6. The detection switch 15 is arranged at the opening edge of each upper surface opening 5, and when the upper surface cover 6 is completely closed, the detection switch 1
A closing completion detection signal is output from 5 to a controller (not shown).

Next, the blocking mechanism 14 will be described in detail. As shown in FIGS. 4 to 7, the support bracket 18 is attached to the inner surface of the side wall of the fixed cover 4 by a pair of screws 19. The rod 20 is supported by the support bracket 18 so as to be vertically movable, and has a large-diameter engagement portion 20a formed at the lower end thereof. The regulating plate 21 is attached to the rod 20 by the nut 22.
Is fixed to the upper end of the, and a restricting piece 21a as a blocking member is projectingly provided on the inner end thereof.

The guide plate 23 is fixed to the inner end portion of the support bracket 18, and the upper end edge of the guide plate 23 engages with the regulating piece 21a to prevent the regulating plate 21 and the rod 20 from rotating. Are formed. The spring 24 is interposed between the spring receiver 25 on the rod 20 and the support bracket 18, and the rod 20 and the regulation plate 21 are urged downward by their own weight and the urging force of the spring 24. There is.

The projecting piece 26 is fixed to the inner surface of the side cover 11, and its tip extends laterally to a position where it can be engaged with the lower end engaging portion 20a of the rod 20. And FIG.
As shown in FIG. 5, when the side cover 11 is arranged at the upper closed position, the tip of the protruding piece 26 engages with the engaging portion 20 a of the rod 20, and the rod 20 and the regulating plate 21 have their own weight and the spring 24. Is moved to the upper position against the urging force of. Further, as shown in FIG. 7, when the side cover 11 is arranged at the lower open position, the protruding piece 26 causes the rod 2 to move.
The rod 20 and the regulation plate 21 are moved to the lower position by their own weight and the urging force of the spring 24, apart from the engaging portion 20a of 0.

The engaging arm 27 is fixed to the inner surface of the upper cover 6, and an engaging piece 27a serving as an engaging member engageable with the restricting piece 21a of the restricting plate 21 is formed at the tip thereof. Then, as shown in FIG. 5, when the side cover 11 is in the closed position and the regulation plate 21 is arranged in the upper position, the regulation piece 21 a of the regulation plate 21 engages with the engagement arm 27. The top cover 6 is allowed to open and close by being positioned outside the rotation locus L1 of the piece 27a. Also, FIG.
As shown in FIG. 3, when the side cover 11 is in the open position and the regulation plate 21 is arranged in the lower position, the regulation piece 21 a of the regulation plate 21 is engaged with the engagement piece 27 of the engagement arm 27.
Located in the rotation locus L1 of a, rotation of the top cover 6 in the closing direction is blocked.

Next, the operation of the cover device in the transfer machine configured as described above will be described.
Now, in the cover device of this embodiment, when performing the inspection work of the machine or the work, the inspection of the work W1, the work of putting in and out the work W1, etc., the machining operation of the work W1 at each machining station 1 is stopped, Stop the operation of the transfer machine. Then, the top cover 6
Is opened and rotated to open the upper surface opening 5 of the fixed cover 4, and the operator's side both side surface covers 11 are moved downward to be opened to open the both side surface openings 9 of the fixed cover 4.
Thereby, the upper surface opening 5 and the side surface opening 1 which are continuous with each other are provided.
1, the upper surface and both side surfaces of the work W1 are largely opened, and the transport mechanism and the work W are passed through these openings 5 and 9.
1 can be handled from above and from the side, and inspection work and work loading / unloading work can be easily performed.

After these operations are completed, the side cover 11 is moved upward to close the side opening 9, and the top cover 6 is closed and rotated to rotate the top opening 5.
To close. In this state, the detection switch 15 outputs a detection signal indicating that the top cover 6 is closed, whereby the operation of the transfer machine and the processing operation of the work W1 at each processing station 1 can be started.

On the other hand, in the closing operation of the covers 6 and 11, if the upper cover 6 is accidentally closed while the side cover 11 is still open, the blocking mechanism 1 is used.
4 prevents the top cover 6 from closing. That is, as shown in FIG. 7, when the side cover 11 is located at the open position, the restricting plate 21 of the blocking mechanism 14 is located at the lower position, and the restricting piece 21 a is the engaging piece of the engaging arm 27. It is located within the rotation locus L1 of 27a.
Therefore, when it is attempted to rotate the upper surface cover 6 from the open position to the closed position with the side surface cover 11 open, the engagement piece 27a engages with the restriction piece 21a to close the upper surface cover 6. Rotation is blocked.

Therefore, it is possible to surely prevent the risk that the upper surface cover 6 is accidentally closed and the machining operation of the work W1 is started while one or both side surface covers 11 are left open. it can. Therefore, it is possible to prevent a worker from touching the movable part during the machining operation, and prevent a situation in which the coolant, chips, and the like are scattered to the outside of the fixed cover 4 through the side opening 9 in the open state. can do.

Further, in the cover device of this embodiment, the upper surface cover 6 and the side surface cover 11 are separately attached to the upper surface opening 5 and the both side surface openings 9 of the fixed cover 4. Therefore, when the machine is inspected, the work W1 is inspected, or the work W1 is put in or taken out, the top cover 6
Also, the both side surface covers 11 can be independently opened and closed, and the opening and closing operations thereof can be performed lightly and easily.

[0029]

Another Embodiment Next, another embodiment of the present invention will be described with reference to FIGS.
It will be described with reference to FIG. First, in the second embodiment shown in FIG. 8, a pair of upper surface covers 6 are attached to the upper surface opening 5 of the fixed cover 4 by hinges 7 so as to be openable and closable in a double door type. In this embodiment, the blocking mechanism 14 similar to that in the first embodiment is provided at four positions between each upper surface cover 6 and both side surface covers 11, and the upper surface cover 6 is closed when the side surface cover 11 is open. You can't.

Next, in the third embodiment shown in FIG.
A pair of locking pins 30 and 31 are provided at the opening edge of the upper surface opening 5, and engaging grooves 32 and 33 are formed on the lower surfaces of both ends of the upper surface cover 6 so that the locking pins 30 and 31 can be engaged and disengaged. ing. Then, the engagement pins 32, 33
By engaging 31 the top cover 6 can be held in the closed position. Further, in the third embodiment, the upper cover 6 is rotated by rotating the upper cover 6 about the other locking pin 31 while the one engaging groove 32 is disengaged from the locking pin 30. Can be opened and closed. In addition, the two locking grooves 32, 33 are connected to the locking pins 30, 31.
By removing the upper cover 6 from the upper opening 5
Can be removed from.

Also in this third embodiment, a blocking mechanism similar to that of the first embodiment is provided. Therefore, as is apparent from FIG. 7 of the first embodiment, the side cover 1
In the opened state of 1, the upper cover 6 can be opened / closed and attached / detached.

Next, in a fourth embodiment shown in FIG. 10, the top cover 6 is divided into two parts at the center, and the dividing members are foldably and rotatably connected by a hinge 34. Further, similarly to the third embodiment, a pair of locking pins 30 and 31 are provided at the opening edge of the upper surface opening 5.
And engaging grooves 32 and 33 are formed on the lower surfaces of both ends of the upper surface cover 6.

Therefore, also in the fourth embodiment, the third
Similar to the embodiment, the engaging grooves 32 and 33 and the locking pin 3
By engaging with 0, 31, the top cover 6 can be held in the closed position. Similarly, by disengaging the engaging grooves 32 and 33 from the locking pins 30 and 31, the upper surface cover 6 can be removed from the upper surface opening 5. Further, in a state where one engagement groove 32 is disengaged from the locking pin 30, the upper cover 6 is rotated about the other locking pin 31 to open the upper cover 6, The top cover 6 can be folded into a stacked state.

In the fourth embodiment, the engagement arms 27 of the blocking mechanism are provided on both split pieces of the top cover 6. In this case, in order to reduce the thickness of the upper surface cover 6 in the folded state, the position of each engagement arm 27 is set so that the engagement arm 27 of one division piece does not interfere with the engagement arm 27 of the other division piece. And the engaging arm 27
It is necessary to reduce the width of.

Next, in the fifth embodiment shown in FIG. 11, the top cover 6 is attached to the top opening 5 so as to be openable and closable. Then, when the side cover 11 is opened and the restriction plate 21 of the blocking mechanism 14 is moved to the lower position, the restriction piece 21 is positioned within the movement locus L2 of the engagement piece 27a of the engagement arm 27, Sliding of the top cover 6 to the closed position is restricted.

The present invention is not limited to the configuration of the above-described embodiment, and may be embodied by making the following arbitrary changes without departing from the spirit of the present invention.

(1) The side opening 9 is provided only on one side of the fixed cover 4, and the side cover 11 is attached to the side opening 9 so as to be openable and closable. (2) As shown in FIG. 12, the upper surface cover 6 is composed of a plurality of cover pieces so as to be telescopically expandable and contractible.

(3) The upper cover 6 is formed into a shutter-like shape that can be wound and housed with a large number of thin cover pieces, and the housing for the upper cover 11 is provided on the upper surface of the fixed cover 4. (4) The upper surface cover 11 is formed in a bellows shape.

(5) The side cover 11 is rotatably supported by a hinge so that the side cover 11 can be opened and closed like a door. In the case of such a configuration, during the closing operation of the side cover 11, the projecting piece 26 on the inner surface of the side cover 11 and the rod 20 on the fixed cover 4 side are smoothly engaged without interference. A cam surface is provided between the protruding piece 26 and the rod 20.

(6) The spring 24 for urging the rod 24 downward is omitted, and the rod 24 is configured to move downward only by its own weight.

[0041]

Since the present invention is configured as described above, it has the following excellent effects.

According to the present invention, when the inspection work of the machine such as the transport mechanism, the inspection work of the work, or the work removal of the work is performed, the upper surface opening and the side surface opening of the fixed cover are appropriately opened so that the machine and the machine are opened. It is possible to easily perform work of inspecting the work or taking in and out of the work. Moreover, according to the present invention, the opening can be made large, and the above-mentioned work can be performed more easily.

Further, according to the present invention, the interlock mechanism is provided so that the upper surface cover is not completely closed unless the side surface cover is closed. Therefore, after the work is inspected or taken out, the side surface is closed. It is possible to reliably prevent the risk of starting the processing operation by closing the top cover with the cover kept open.

Further, according to the present invention, the top cover and the side cover can be opened and closed independently and easily.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing a first embodiment of a cover device in a transfer machine embodying the present invention.

FIG. 2 is a partial plan view of a cover device in the transfer machine.

FIG. 3 is a partial front view of the cover device of the transfer machine.

FIG. 4 is a partial lateral cross-sectional view showing an enlarged main part of the cover device.

5 is a partial cross-sectional view taken along the line AA of FIG.

6 is a partial cross-sectional view taken along the line BB of FIG.

FIG. 7 is a partial cross-sectional view showing a state in which an upper cover and a side cover are opened corresponding to FIG.

FIG. 8 is a partial front view showing a second embodiment of the cover device in the transfer machine embodying the present invention.

FIG. 9 is a partial sectional view showing a third embodiment of the cover device of the same.

FIG. 10 is a partial sectional view showing a fourth embodiment of the cover device of the same.

FIG. 11 is a partial sectional view showing a fifth embodiment of the cover device of the same.

FIG. 12 is a partial cross-sectional view showing another example of the cover device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Processing station, 3 ... Transfer mechanism, 4 ... Fixed cover, 5 ... Top opening, 6 ... Top cover, 9 ... Side opening, 1
1 ... Side cover, 14 ... Blocking mechanism, 20 ... Rod, 21
... regulating plate, 21a ... regulating piece, 26 ... projecting piece, 27 ... engaging arm, 27a ... engaging piece, W1 ... work.

Claims (3)

[Claims] 1. A plurality of processing stations which are arranged at predetermined intervals along a work transfer path, a transfer mechanism which transfers the work to each processing station all at once, and a work transfer path between the processing stations which is located outside the work transfer path. In a cover device of a transfer machine having a fixed cover for covering from above, an opening for inspection is provided on the upper surface and at least one side surface of the fixed cover, and the upper surface cover is rotatably attached to the upper surface opening and side opening. A side cover openably and closably attached between the top cover and the side cover, and a blocking mechanism for preventing the top cover from being closed when the side cover is open. A cover device for a transfer machine. 2. The cover device in a transfer machine according to claim 1, wherein the upper surface opening and the side surface opening are continuous with each other. 3. An engaging member fixed to the lower surface of the upper cover, and an engaging member provided on the inner surface of the fixed cover so as to interlock with the opening / closing operation of the side cover, and the engaging member when the side cover is moved to the open position. The blocking mechanism is configured by a blocking member that is disposed in the movement locus of the member and that deviates from the movement locus when the side cover is moved to the closed position. When the side cover is in the open state, the engagement member is A cover device for a transfer machine, which is configured so that the top cover cannot be moved in the closing direction so as to be engageable with a blocking member.