JPH07274316A - Housing for control board and assembling method therefor - Google Patents

Abstract

PURPOSE:To eliminate the need of temporary welding by positioning each member of housing for control board accurately while standing and then securing each member in place. CONSTITUTION:The housing for control board comprises right and left side boards 23, a ceiling board 25 and a bottom board 22 secured to the side boards 23 at the upper and lower ends thereof, a front door 30 at the opening of housing, and a lower flange member 27 constituting the front flange at the opening of the housing along with the ceiling board 25 and the side boards 23. A bent down parts 23C is formed on the inner face of the bottom board at the lower end of each side board 23 and the lower flange member 27 is provided with a horizontal leg 2-7A bonded at least to the surface of the bottom board and a vertical leg 27B rising between the side boards 23. Positioning protrusions 27D are provided at the bent clown parts 23C of the side boards 23 and at the opposite ends of the horizontal leg 27A and fitted in the positioning recesses on the surface of the bottom board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control panel or the like for a CNC machine tool such as a laser processing machine or an electric discharge machine, and more particularly to a control panel housing thereof.

[0002]

2. Description of the Related Art An example of a conventional control panel housing is shown in FIGS.
This will be described with reference to FIG. In the figure, 101 is a control panel casing, and 1 is a welded and assembled casing which is the main part thereof. The housing 1 includes a bottom plate 2, symmetrical side plates 3 and 3, a top plate 5,
It has a back plate 6 and a flange member 7. The bottom plate 2 is formed in a box shape with four sides bent downward, and has a depth dimension that protrudes from the front ends of the left and right side plates 3 to support the door 8 as described later. The side plate 3 has front and rear bent portions 3A, 3A at its front and rear ends.
The inner bent portions 3B and 3B from the end edge are bent and formed. A lower bent portion 3C is formed at the lower end, and an upper bent portion 3D and an inner bent portion 3E (see FIG.
2) has been formed. The left and right side plates 3 are arranged on both sides of the upper surface of the bottom plate 2 and are joined by welding beats 41 and 42. The top plate 5 has bent portions 5A, 5A and inner bent portions 5B, 5B formed at its front and rear ends, and side end bent portions 5C, 5 at its left and right ends.
C is formed. The top plate 5 is disposed between the left and right side plates 3 and 3 and is joined to the left and right side plates 3 by welding beats 46 and 47.

The back plate 6 has left and right bent portions 6A, 6A at both ends.
However, upper and lower bent portions 6B, 6B are formed at the upper and lower ends. The back plate 6 is a bottom plate 2, left and right side plates 3, 3 and a top plate 5.
And are joined to these members by a welding beat 48. The lower flange member 7 includes a horizontal leg 7A fixed to the upper surface of the bottom plate 2 and a vertical leg 7 located between the left and right side plates 3,3.
Have B. The vertical leg 7B constitutes a front flange (door contact surface) of the housing opening together with the front bent portions of the left and right side plates 3 and the top plate 5. Notches 7C are provided at the left and right ends of the horizontal leg 7A to avoid the welding bit 41, and are joined to the bottom plate 2 by the welding bit 43. Also, the side plate 3
Is joined to the side plate 3 by a welding beat 45 so as to fill the V-shaped groove formed at the joint between the arc portion of the front bent portion 3A and the inner bent portion 3B and the edge of the vertical leg 7B. ing.
Since the welding beat 45 is located on the door contact surface,
It has a flat grinder finish.

Reference numeral 8 denotes a door, which has inwardly bent portions 8A formed on three sides and has a thin first packing 61 attached thereto. The inner bent portion 8B on the hinge side is formed so as to have a large gap with the side plate 3, and a thick second packing 62 is attached. This allows the door 8 to rotate smoothly. A hinge pin 9 is welded to the lower end of the door 8 and inserted into the pin hole 2A of the bottom plate 2. Further, the shaft 10 is provided inside the upper end.
Is welded and the upper hinge pin 12 fixed to the hinge fitting 11 is inserted. Upper bending part 3D of the left side plate 3
And the nut member 14 is welded to the inner surface of the top plate 5,
The hinge fitting 11 is fastened and fixed by a bolt member 13 screwed with the nut member 14. This makes the door 8
Is rotatably supported on the upper surface of the bottom plate 2 and can be closed by using an appropriate locking means. A nut member 15 is welded to the inner surface of the upper bent portion 3D of the left right side plate 3, and a lifting eye bolt 16 is screwed into the nut member 15.

Next, the procedure for welding and assembling the casing 1 will be described. Usually, the housing 1 has a height dimension larger than a depth dimension and a width dimension. In order to easily set each heavy member, the back plate 6 side is the bottom surface, and the assembling work is performed in a state in which the housing opening portion is the top surface and is lying down. In this laid state, temporary welding is performed from the inside of the opening of the housing 1 while positioning the bottom plate 2, the left and right side plates 3, 3, the top plate 5, and the flange member 7. This tack welding means arc welding with a short beat at a place where the positioning of each member can be maintained. Next, after the case 1 in the temporarily attached state is erected and conveyed to a predetermined section, the arc welding robot is used to perform the operation shown in FIG.
Final welding is performed as shown in FIG. The reason why robot welding is performed in the standing state is that the robot arm exceeds the movable range and the work and transfer space becomes large in the horizontal state.

After the transfer to another section, finishing work is performed. This includes a grinder finish of the weld beat 45. In addition, at the joint between the top plate 5 and the side plate 3, a bending coil
Since the V-shaped groove is formed on the outer surface by the circular arc portion, at least the portion forming the front flange of the housing opening portion is
It is necessary to flatten the surface with a caulking material such as putty so that no gap is created between the packing 61 and the packing 61. Although not shown, the joints between the members are
Seal with King material. Usually, this seal is applied on the inner surface side so as to connect the intermittently welded portions in order to omit the flat finish.

[0007]

When the housing 1 is welded, the parts of each member bent inside the housing, for example, the inner bent portion 3B.
Since the bent portion 6A, the inner bent portion 3E, and the side end bent portion 5C are formed, welding burn (roughness due to oxidation or dent due to contraction after cooling) does not occur on the outer surface. Therefore, there is an effect that it is not necessary to grind the above-mentioned weld burn before painting. However, since the tack welding is performed in the state of being laid down, the respective members are moved toward the rear side of the casing 1 by their own weight, and the dimensional errors of the respective members are accumulated on the side of the casing opening so that the door and the front flange have a predetermined size. It was difficult to get the interval.

[0008] Further, it is difficult to obtain the dimensional accuracy of the housing because the positioning of each member is not taken into consideration, and the man-hours for temporary welding are large.

Further, since the tack welding is performed in a state of being laid down, it is necessary to erect the housing after the tack welding, and the work is complicated. Furthermore, the V-shaped groove of the front flange was flat-finished manually.

The nut member 14 for the hinge fitting is difficult to weld because it is welded to the corners of the inner surfaces of the side plate 3 and the top plate 5.
In this way, the number of man-hours required for manual work was large, and the effect of introducing the welding robot could not be fully exhibited.

In recent years, it has become necessary to provide a heat exchanger heat transfer plate on the entire back side of the housing for indirect air cooling even in a control panel that generates a large amount of heat. In this case, the housing rear plate is arranged as a partition plate in front of the rear end of the side plate, and a ventilation section having a short depth is formed between the partition plate and the back plate arranged at the rear end of the side plate to form the ventilation section. It is necessary to be able to easily dispose the heat transfer plate inside.

Further, in order to reduce the space required for opening and closing the door, there has been a demand for a double door that can reduce the width of the door.

Further, since the top plate 5 is disposed between the left and right side plates 3 and 3 and joined to the left and right side plates 3 by the welding beats 46 and 47, the top plate 5 is joined to the left and right side plates 3 in the joining work. Three
The work of arranging between the two and supporting the weight of the top plate 5 was complicated.

The present invention has been made in order to solve the above problems, and a first object thereof is to omit temporary welding, position and fix each member of the housing in a standing state, and immediately perform a welding robot. The purpose is to obtain a highly accurate control panel housing with high productivity, which can be permanently welded and the number of manual work steps can be reduced.

A second object is to eliminate the flat finish of the V-shaped groove of the front flange and prevent dust and the like from entering through the V-shaped groove.

A third object is to eliminate the work of supporting the weight of the top plate when the top plate is arranged between the left and right side plates.

A fourth object is to easily fix the hinge fittings to the corners of the inner surfaces of the side plate and the top plate.

A fifth object is to easily form a ventilation section on the entire back side of the housing.

A sixth object is to obtain a control panel housing suitable for having a double door.

[0020]

A control panel housing according to a first aspect of the present invention includes a left and right side plate, a top plate and a bottom plate fixed to the upper and lower ends of the left and right side plates, and a front housing. In a control panel housing having a door in the opening, and a lower flange member that constitutes a front flange of the housing opening together with the top plate and the left and right side plates, a bottom plate is provided at the lower end of each of the left and right side plates. A lower bent portion is formed on the inner surface, and the lower flange member includes at least a horizontal leg fixed to the upper surface of the bottom plate and a vertical leg formed to rise between the left and right side plates. And one of a positioning recess or a positioning projection is formed at the left and right ends of the horizontal leg of the lower flange member, and the positioning recess and the positioning projection are fitted to each other on the upper surface of the bottom plate. It is characterized in.

A control panel housing according to a second aspect of the present invention includes left and right side plates, a top plate and a bottom plate fixed to the upper and lower ends of the left and right side plates, and a door at the front housing opening. ,
In a control panel housing including a lower flange member that forms a front flange of the housing opening together with the top plate and the left and right side plates, the door is provided around the front facing flange of the housing opening. A bent portion is formed, and the front edge of each of the left and right side plates has a front bent portion and an inner bent portion, and is formed to be bent into a substantially U-shaped cross section, and the front bent portion and the inner bent portion are bent. A square hole is formed in the corner portion, and the lower flange member includes a horizontal leg fixed to the upper surface of the bottom plate and a vertical leg raised between the left and right side plates. Protrusions are formed on the left and right ends, respectively, and the protrusions are fitted into the square holes. A packing is attached to the inner bent portion of the door at the fitting portions of the protrusions and the square holes. It is characterized by that.

A control panel housing according to a third aspect of the present invention includes left and right side plates, a top plate and a bottom plate fixed to the upper and lower ends of the left and right side plates, and a door at the front housing opening. In a control panel housing provided with the above, each of the left and right side plates has an upper bent portion formed at an upper end thereof, and a corner member having a vertical leg and a horizontal leg formed so as to project from an edge of the upper bent portion of the side plate. The vertical legs of the corner member are closely contacted with the insides of the upper portions of the left and right side plates, and the horizontal legs of the corner member are closely contacted with the upper bent portions of the left and right side plates. Is placed on the upper surface of the horizontal leg of the corner member, and the left and right edges of the top plate are abutted and fixed to the edges of the upper bent portions of the left and right side plates, respectively.

A control panel housing according to a fourth aspect of the present invention has a structure in which a door for closing the opening of the housing is rotatably supported by hinge pins at the top and bottom, and a hinge fitting fixed to the top of the housing by screws. The hinge pin is fixed to the hinge fitting and fitted on the upper surface of the door, and the hinge fitting is screwed to the horizontal leg of the corner member.

A control panel housing according to a fifth aspect of the present invention includes left and right side plates, a top plate and a bottom plate fixed to the upper and lower ends of the left and right side plates, and a door at the front housing opening. In the control panel housing provided with, the door has an inner bent portion formed around the front opening flange of the housing opening, and a packing is attached to the inner bent portion of the door. A bent portion is formed, the front bending portion is provided with an opening for positioning, and the opening is located at a contact surface of the packing against which the packing of the door is pressed or a position inside the board from the contact surface. It is a thing.

According to a sixth aspect of the present invention, there is provided a method of assembling a control panel housing, wherein right and left side plates, a top plate and a bottom plate fixed to upper and lower end portions of the left and right side plates, respectively, and a front housing opening portion. A door, the front surface of the bottom plate is projected to at least the same surface as the front surface of the door, and the hinge pin provided on the lower surface of the door is fitted into the pin hole formed in the front projection of the bottom plate. In the method for assembling the panel housing, the left and right side plates are positioned at right angles to the top surface of the bottom plate by fitting the pin holes in the bottom plate and fitting the openings for positioning the front bent portions of the left and right side plates. And
It is characterized in that the right and left side plates are assembled by using a jig for clamping the bottom plate.

A control panel housing according to a seventh aspect of the present invention includes left and right side plates, a top plate and a bottom plate joined to the upper and lower ends of the left and right side plates, and a door at the front housing opening. In the control panel housing provided with, the left and right side plates, the top plate, the four side edges fixed to the inner surface of the bottom plate is provided with a wall plate having vertical and horizontal bent portions, and the upper and lower bent portions of the wall plate are The top plate and the bottom plate are joined to each other, and the left and right bent portions of the wall plate are joined to the inner surfaces of the left and right side plates with an adhesive tape or an adhesive.

In the control panel housing according to the eighth aspect of the present invention, the front edge portion of the top plate has a front bent portion and an inner bent portion, and the vertical cross section of the front edge portion is bent and formed into a substantially U shape. The door that closes the housing opening is divided into two left and right, and in the control panel housing in which the middle pillar is arranged at the joint between the left and right doors, the middle pillar has a front leg and left and right side legs. The lateral leg is formed in a U shape, the upper and lower ends of the side leg are formed with protrusions, the inner bent portion of the top plate is formed with a square hole, and the horizontal leg is formed with a square hole. A lower flange member, wherein the lower end projection is fitted into a square hole of a horizontal leg of the lower flange member, and the upper projection is fitted into a square hole of an inwardly bent portion of the top plate. It is a feature.

[0028]

According to the control panel housing of the first aspect of the present invention, the downwardly bent portions of the left and right side plates and the positioning recesses and the positioning projections formed at the left and right ends of the horizontal legs of the lower flange member are fitted to each other. Thereby, the space between the left and right side plates is positioned, and at the same time, the front and rear positions of the lower flange member can be positioned.

According to the control panel housing of the second aspect of the present invention, the bending coil of the left and right side plates is formed by bending the lateral cross section into a substantially U shape.
By fitting projections formed on the left and right ends of the lower flange member into the square holes formed in the corner portion, a V-shape generated between the packing attached to the door and the bending corner portion. The groove is closed.

According to the control panel housing of the third aspect of the present invention, the top plate is arranged on the upper surface of the horizontal leg of the corner member which is disposed above the left and right side plates and projects from the edge of the upper bent portion of the side plate. By being installed, the top plate can be set without having to support its weight.

According to the control panel housing of the fourth aspect of the present invention, the screw hole for fixing the hinge fitting to which the upper hinge pin is fixed is provided in the horizontal leg of the corner member arranged on the upper side of the left and right side plates. Since it is screwed, welding of the nut member to the inner surfaces of the side plate and the top plate can be omitted, and at the same time, the rigidity of the housing is improved.

According to the control panel housing of the fifth aspect of the present invention, the positioning opening is formed in or on the packing contact surface attached to the door below the front bending portion of each of the left and right side plates. As a result, the positioning jig attached to the opening can be easily set from the front of the housing, and the opening is closed by the packing in the door closed state.

According to the control panel housing of the sixth aspect of the present invention, the positioning jig is fitted into the pin hole for the door hinge formed in the bottom plate and set, so that the side plate is positioned relative to the bottom plate. Are positioned so that the distance between the door and the side plate has a predetermined dimension.

According to the control panel housing of the seventh aspect of the present invention, in the wall plate having the bent portions formed on the four sides, the upper and lower bent portions of the wall plate are joined to the top plate and the bottom plate, respectively. By joining the left and right bent parts of the face plate to the inner faces of the left and right side plates, the rigidity of the housing is not deteriorated, and welding on the side surfaces of the left and right side plates can be eliminated, so that the finishing work on the outer surface of the side plate can be eliminated and The joint with the side plate is securely sealed.

According to the control panel housing of the eighth aspect of the present invention, the protrusions formed on the upper and lower ends of the middle pillar having a substantially U-shaped cross section are formed on the horizontal legs of the top plate and the lower flange member. By being fitted into the formed square hole, it is possible to stand and set between the top plate and the lower flange member without using a jig or the like.

[0036]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to FIGS. In the figure, 102 is a control panel housing,
Reference numeral 21 denotes a welded and assembled casing which is the main part of the casing. The housing 21 includes a bottom plate 22, laterally symmetrical side plates 23, 23, and a top plate 2.
5, it has a partition plate 26 and a flange member 27. Bottom plate 22
Is formed in a box shape with four sides bent downward, and pin holes 22A, 22A are provided at both ends of the upper surface portion of the side plate 23 protruding from the front end.
, And notches 22B are provided on both sides of the lower end. The side plate 23 has front and rear bent portions 23 at its front and rear ends.
A, 23A and inward bends 23B, 23 from their edges
B is formed in a U-shaped cross section. A lower bent portion 23C is formed at the lower end and an upper bent portion 23D is formed at the upper end. The upper part of the front bending part 23A has an upper bending part 2 having a small width.
The notch 23E is formed so as to match the width of 3D. Reference numeral 24 is a corner member, and its vertical leg 24A is spot-welded to the inner surface of the upper portion of the side plate 23 as shown by 49 in FIG. Further, the horizontal leg 24B is in close contact with the inner surface of the upper bent portion 23D, and protrudes inward from the edge of the horizontal leg 24B. Further, a hinge fixing portion 24C is formed at the front end of the horizontal leg 24B, and a reinforcing leg 24B1 is bent downward from the end edge of the horizontal leg 24B so as to leave the hinge fixing portion 24C. The left and right side plates 23, 23 are bottom plates 22.
Are arranged on both sides of.

The top plate 25 has a front bent portion 25A and an inner bent portion 25B which is notched on both sides at the front end thereof.
The sides are flat. The top plate 25 is the left and right corner members 2
4 is placed on the horizontal leg 24B, and both ends thereof are closely attached to the edges of the upper and lower bent portions 23D of the left and right side plates, and both ends of the front bent portion 25A and the inner bent portion 25B are also cut out portions 23E of the left and right side plates. It is in close contact with the inner bent portion 23B. The nut member 15 is welded to the inner surface of the horizontal leg 24B of the corner member, and the semicircular groove 23 is formed in the side plate and the top plate in correspondence with the nut member 15.
F and 25C are provided and one lifting eyebolt 1
6 is screwed. When two eyebolts 16 are provided on one side as in the conventional example or when the weight of the control panel is light, the reinforcing leg 24B1 of the corner member can be omitted from the viewpoint of strength.

The partition plate 26 has bent portions 26A, 26 on four sides.
B is formed, and the bottom plate 2 is provided in front of the rear surface of the housing 21.
2, between the left and right side plates 23, 23 and the top plate 25. A ventilation section 103 is formed between the partition plate 26 and a back plate 29 provided on the back surface of the housing 21.
A heat transfer plate (not shown) for a heat exchanger may be disposed in the ventilation compartment 103. The position of the rear end of the top plate 25 coincides with the partition plate 26, and the ceiling of the ventilation section 103 is open. A second cutout portion 23H is provided behind the lower bent portion 23C of the side plate, and both ends of the lower bent portion 26B of the partition plate 26 are fitted to each other. An outside air fan duct 32 (FIG. 5) is provided on the ceiling of the ventilation section 103, and an outside air intake port is provided below the back plate 29 (not shown), while the partition plate 26 is provided with an intake and exhaust port for inside air. Is provided and an inside air fan is attached to the inside of the panel to form a heat exchanger.

The lower flange member 27 has a horizontal leg 27A fixed to the bottom plate 22 and a vertical leg 27B forming a part of the front flange of the housing opening. The both ends of the horizontal leg 27A are a notch portion 27C for avoiding a welding beat described later and a positioning protrusion protruding from the vertical leg 27B.
A protrusion 27D is formed, and the first protrusion 27D is fitted in a first cutout portion 23G which is a positioning recess provided in front of the downward bending portion 23C of the side plate. In addition, second protrusions 27E are formed at both ends of the vertical leg 27B, and inside the corner square hole 23J formed in the arc portion of the bending corner between the front bending portion 23A and the inner bending portion 23B of the side plate. It is fitted.

Reference numerals 30 and 31 denote left and right double-door doors, and the central joint is closed by appropriately extending a flange portion from either the left or right door. Others are configured as in the conventional example, and the inner bent portions 30 are provided above and below the doors 30 and 31, respectively.
A and 31A are formed and a thin first packing 61 is attached. Also, on the hinge side, the inner bent portions 3
0B and 31B are formed, and the second packing 62 is attached. Further, hinge pins 9 welded to the lower ends thereof are respectively inserted into the left and right pin holes 22A of the bottom plate. Further, the upper hinge pins 12 of the pair of left and right hinge fittings 11 are inserted into the shafts 10 respectively welded to the upper ends. The hinge fitting 11 is arranged so as to straddle the side plate 23 and the top plate 25, and is tightened and fixed by a bolt member 13 that is screwed into a screw hole provided in the hinge fixing portion 24C of the corner member. Since the width of the doors 30 and 31 is as small as almost half the width of the housing 21, the floor space required for opening and closing can be reduced.

Next, the procedure for welding and assembling the casing 21 will be described. Prior to welding and assembling the casing 21, the corner member 24 is spot-welded to the side plate 23. Case 21 according to the present invention
The welding and assembling are characterized in that they are carried out in the same standing state as the use state of the control panel, as described in detail below. First, the jig 65 shown in the basic principle diagram in FIGS. 6 and 7 is erected and set on the front upper surface of the horizontally installed bottom plate 22. Reference numeral 66 denotes a frame of the jig 65, and in the example shown in the figure, it has a frame shape having substantially the same size as the front flange of the opening of the housing 21.
A first pin 67 is fixed to the lower surface of the frame 66 and is fitted in the left and right pin holes 22A of the bottom plate. As a result, the jig 65 is positioned and set on the bottom plate 22.
Reference numeral 68 is a second pin fixed to the upper left and right sides of the frame 66. Reference numeral 70 denotes a slide plate mounted via support pins 71 in through-grooves 66A provided on the left and right sides of the frame 66, and a hook portion 70A is formed on the rear side. 72
Is a rotary hook attached to the front side of the slide plate 70, and has a hook portion 72A formed at the lower end. The slide plate 70 and the rotary hook 72 can be operated in combination with an appropriate toggle clamp mechanism (not shown).

Next, one side plate 23 is set on the bottom plate 22, and an opening (hole) 23 is formed in the upper portion of the front bending portion 23A.
The second pin 68 is fitted to L, and the hook portion 70A of the slide plate is fitted to the opening 23K formed in the lower portion, and is engaged with the back side of the front bending portion 23A by the pushing down operation. At the same time, the hook portion 72A of the turning hook is engaged with the notch portion 22B of the bottom plate 22. As described above, the side plate 23 can be erected at a right angle on the upper surface of the bottom plate 22 to perform the positioning clamp.
Distance G between the bottom plate pin hole 22A and the outer surface of the side plate front bending portion 23A
(FIG. 7) is determined by the accuracy of the jig 65, and there is almost no error in the distance G.

Next, the partition plate 26 is bonded to the inner surface of the standing side plate 23 by using a structural adhesive tape or a structural adhesive 63. The lower portion of the partition plate 26 can be positioned by fitting it into the first cutout portion 23G of the side plate and the upper portion thereof in close contact with the rear end of the corner member 24. With this, the one side plate 23 and the partition plate 26 are combined in a T-shape and can stand up. As the structural adhesive tape 63, various product numbers under the trade name "VHB bonding material" manufactured by Sumitomo 3M Limited can be used. As the structural adhesive 63, various product numbers under the trade name "Hardlock" manufactured by Denki Kagaku Kogyo Co., Ltd. can be used. Both are room temperature curing,
It withstands the high temperatures of the painting process.

Next, the lower flange member 27 is set on the one side plate 23. This is done by fitting the first protrusion 27D and the second protrusion 27E of the lower flange member 27 to the side plate as described above. Next, the side plate 23 on the opposite side is bonded and joined to the partition plate 26 while fitting the partition plate 26 and the lower flange member 27. And the jig 6
Positioning clamp is performed with respect to the bottom plate 22 by 5. As a result, the left and right side plates 23, 23 and the partition plate 26 are combined in an H shape and positioned to stand up, and the lower flange member 27 can be positioned and set between the left and right side plates 23, 23.

Next, the top plate 25 is placed on the left and right side plates 23. Since both ends of the top plate 25 are located on the horizontal legs 24B of the corner member, it is not necessary to support the weight of the top plate 25, and the positioning can be easily performed so that the top plate 25 closely contacts the side plate 23. After positioning, as shown in FIG. 8, the top plate 25 is tightened and fixed by the painting process eyebolts 73. Eyebolt 7 above
Reference numeral 3 denotes a pedestal of the regular lifting eyebolt 16 in which a lower surface side of the pedestal is notched to form a small diameter portion 73A.
The small-diameter portion 73A includes side plate semicircular grooves 23F and top plate semicircular grooves 25.
Since it has the smallest diameter that can tighten the edge of C, the unpainted part after removing the eyebolt 73 is the regular eyebolt 16
Covered by the pedestal.

As described above, the housing 21 in which each member is positioned and set in the upright state without temporary welding is conveyed to the robot welding section. Unlike the conventional method, since temporary welding is not performed in the state of being laid down, the work space is small and the transportation distance can be shortened, and the transportation can be performed with the positioning setting described above. It is recommended to use a general-purpose toggle clamp for restraining. The bottom plate 22 and the side plate 23 are welded to each other by robot welding.
They are joined at 1, 42. The lower flange member 27 is a welding beam.
It is joined to the bottom plate 22 at the joint 43 and to the inner bent portion 23B of the side plate at the welding bit 44. The lower end of the partition plate 26 is joined to the bottom plate 22 by a welding beat 50. The side plate 23 and the top plate 25 are joined together by welding beats 46 and 47, and the top ends of the top plate 25 and the partition plate 26 are joined together by a welding beat 51. After the above robot welding is completed, the robot can be conveyed to the coating section as it is, and can be lifted up in the automatic coating line using the eyebolt 73 for the coating process to complete the coating.

Next, the function and effect of the present invention will be described in more detail. The lower bent portions 23C of the left and right side plates 23 and the both ends of the horizontal legs 27A of the lower flange member 27 can be set in a short time because the positioning recesses and protrusions are fitted to each other. Thereby, the space between the left and right side plates 23 can be positioned, and at the same time, the movement of the lower flange member 27 in the front-rear direction can be restricted. Therefore, temporary welding of the lower flange member 27 can be omitted. Note that the positioning recess and protrusion may be provided on either the side plate 23 or the lower flange member 27, and the shape thereof may be appropriately selected.

The V-shaped groove formed between the corner of the inner bent portion 23B of the side plate 23 and the lower flange member 27 and the packing 61 attached to the door has a corner angle of the side plate. Since it is closed by the second protrusion 27E of the lower flange member 27 fitted in the hole 23J, it is not necessary to manually finish the V-shaped groove with a putty or the like. Further, the edge of the front bent portion 25A of the top plate is in close contact with the edge of the upper cutout portion 23E of the side plate so that the V-shaped groove is not formed unlike the conventional example. The reason why this configuration cannot be adopted for the lower flange member 27 is that the lower end of the inner bent portion 23B of the side plate is cut out, and the welding of the welding beat 41 which requires the highest joint strength cannot be performed. By the way, the lower flange member 2
7 may be fixed to the bottom plate 22 with screws so that it can be attached and detached for the convenience of insertion and withdrawal of devices attached to the upper surface of the bottom plate 22. Also in this case, the corner square hole 23
A combination of J and the second protrusion 27E can be adopted, and the inside of the housing 21 can be sealed. However, in order to make it easy to put on and take off, the horizontal leg 2
The fitting between both ends of 7A and the lower bent portion 23C of the side plate is removed.

The top plate 25 is a core of the left and right side plates 23 which are erected.
Since it can be set on the horizontal leg 24B of the corner member and fixed by fastening with the eye bolt 73, temporary welding of the top plate 25 can be eliminated. Further, the top plate 25 is formed in a flat plate shape except for the front surface side, and is placed on the left and right side plates 23 and the partition plate 26 that are erected and positioned, so that the weight of the top plate 25 closely adheres to those members and a gap is generated. Absent. Therefore, the application of the seal material can be omitted. Further, the eyebolt 73 does not need to be removed until the painting is completed.

Since the screw holes for bolting the hinge fitting 11 are formed in the hinge fixing portions 24C of the left and right corner members 24, the troublesome welding of the nut member can be eliminated. Further, since the hinge fixing portion 24C is provided across the side plate 23 and the top plate 25, the corner of the housing 21 is reinforced and the rigidity of the housing 21 is improved. Further, an appropriate pin member may be inserted into the screw hole of the hinge fixing portion 24C penetrating the top plate 25 to assist in the temporary fixing of the top plate 25 by the eye bolt 73.

Since the jig openings 23K and 23L formed in the front bending portion 23A of the side plate 23 are located within the packing contact surface 64 shown by the two-dot chain line in FIG. 4, the door 30,
It is closed in the state where 31 is closed, and the dustproof property of the housing 21 is not impaired. The openings 23K and 23L may be located on the inner side of the board with respect to the packing contact surface 64. Since the jig 65 has a frame shape and is arranged around the opening of the housing 21, it does not prevent the arm of the welding robot from approaching the inside of the housing 21. The jig 65 has its frame 66 left and right so that it can be used for housings of different widths.
It may be divided into U-shapes or L-shapes. In this case, if auxiliary pins 69 are provided on the lower surface of the frame 66, the positioning can be accurately performed with respect to the bottom plate 22 similarly to the frame-shaped ones.

The left and right bent portions 26A of the partition plate 26 and the side plate 23
Since the joint portion with the inner surface is not pressed by its own weight at the time of positioning setting, a gap is likely to be formed as in the conventional positioning setting in the laid state. However, since the structural adhesive tape or the structural adhesive 63 has excellent flexibility, the gap is closed and the two are joined. Since the peeling load is not applied to the joining portion, the characteristic of the adhesive joining that the shearing load is larger than the peeling load can be exhibited, and the rigidity of the housing 21 is sufficiently secured. As a matter of course, finishing work on the outer surface of the side plate 23 is unnecessary. Since the welding points shown in FIGS. 2 and 3 are on the ceiling surface and the bottom surface of the housing 21, the welding burn points are not noticeable in appearance, and the removing work can be omitted. Further, the side plate 23, the partition plate 26, and the joint portion of the bottom plate 22 have their own weight in the upright state, like the top plate 25, so that they adhere to each other and do not form a gap. Therefore, the application of the seal material can be omitted. Thus, all finishing work after robot welding can be eliminated.

Example 2. The second embodiment of the present invention will be described below with reference to FIGS. 9 and 10. In the figure, reference numeral 34 is a center pillar arranged at the joint of the double door. The inner pillar 34 is provided when the width of the housing 33 is large and rigidity needs to be increased, or when it is necessary to support the internal storage device.
The middle pillar 34 has a U-shaped cross section, and has a front leg 34A.
And a pair of left and right side legs 34B. Left and right side legs 34
A pair of upper protrusions 34C are formed at the upper end of B, and the front leg 3
It is shorter than the upper end of 4A by a dimension T (FIG. 9). A pair of lower protrusions 34D are formed at the lower ends of the left and right side legs 34B, and a notch 34E is provided at the lower ends of the front legs 34A.

The inner bent portion 25B of the top plate 25 is provided with a square hole 25D on the front side. The square hole 25D is formed by cutting out the front bent portion 25A by the same size as the above T. The bottom plate 22 is provided with a square hole 22C having the same width as the width of the middle pillar 34 and the same depth as the depth of the lower protrusion 34D. On the other hand, the horizontal leg 27 of the lower flange member 27
A has a pair of right and left square holes 27F that are in contact with the inner surface of the side leg 34B and have the same depth as the depth dimension of the lower protrusion 34D. The square holes 22C and 27F are overlapped,
Two square holes 35 that correspond to the cross section of the lower protrusion 34D are formed. This is because when drilling with a turret punch press, narrow-width machining such as the square hole 35 is difficult in terms of punch life.

First, the lower pillar 34D of the center pillar 34 can be inserted into the square hole 35 to stand upright. Next, the top plate 25 is set on the left and right side plates 23 as in the first embodiment so that the upper protrusion 34C is fitted in the square hole 25D of the top plate 25, and the upper ends of the front legs 34A are squared. Hole 25
The lower end of the front leg 34A is in close contact with the front edge of D and the upper edge of the vertical leg 27B of the lower flange member to form a flat door contact surface. As described above, the center pillar 34 can be positioned and set without using any jig, and tack welding is unnecessary. Then, robot welding is performed at the upper and lower ends of the side legs 34B like the welding beat 52 (FIG. 10). Since the other parts are the same as those in FIGS. 1 to 8, the description thereof will be omitted. When performing the setting of the top plate 25 and the center pillar 34 at the same time, the height of the lower protrusion 34D may be lowered so that the square hole 22C of the bottom plate is not provided and only the square hole 27F is fitted.

In the above embodiments, the control panel housing in which the ventilation compartment is formed on the back side of the housing has been described, but the same can be applied to the control panel housing in which it is not necessary to form the ventilation compartment as in the conventional example. . The simplest configuration in this case is
Bent portion 23A and inner bent portion 23B on the rear side of the left and right side plate 23
The partition plate 26 is disposed on the rear surface of the housing, and the depths of the corner member 24 and the top plate 25 are extended to the rear surface of the housing. Further, since the partition plate 26 serves as a housing back plate, the back plate 29 is unnecessary. Therefore, in the present invention, the name of the partition plate 26 when the presence or absence of the ventilation section is not distinguished is referred to as "wall plate". Furthermore, the first to eighth inventions can be applied independently to the conventional casings to form various partially improved embodiments, and the same effects can be partially obtained. is there.

Further, in the embodiment, the control panel housing for assembling by welding in the standing state and the assembling method thereof have been described, but the welding and assembling may be performed with the left side plate 23 or the right side plate 23 facing down. In this case, there are still drawbacks such as an increase in the number of spacers and a time-consuming task of standing up after welding and assembly, but the other effects are similar to those of the embodiment.

[0058]

In the control panel housing according to the first aspect of the present invention, a lower bent portion is formed on the inner surface of the bottom plate at the lower ends of the left and right side plates, and the lower flange member is at least between the horizontal leg fixed to the upper surface of the bottom plate and the left and right side plates. A vertical leg that is formed upright is formed, and one of a positioning recess or a positioning protrusion is formed at the left and right ends of the left and right side plates and the left and right ends of the horizontal leg of the lower flange member. Since the positioning recess and the positioning projection are fitted to each other, each member of the housing can be accurately positioned and fixed in the upright state, temporary welding can be omitted, and the welding robot can immediately perform the final welding. The subsequent finishing can be omitted, and there is an effect that the control panel housing with high productivity and high accuracy can be obtained.

In the control panel housing according to the second aspect of the present invention, the door has an inner bent portion formed around the front opening flange of the housing opening, and the front edge portions of the left and right side plates have the front bent portion and the inner bent portion. And has a substantially U-shaped cross section, and square holes are formed in the bending corner portions of the front bending portion and the inner bending portion, and the lower flange member is fixed to the upper surface of the bottom plate. A horizontal leg and a vertical leg that is formed to rise between the left and right side plates; protrusions are formed at the left and right ends of the vertical legs of the lower flange member; the protrusions are fitted into the square holes; Since a packing is attached to the inner bent portion of the protrusion at the fitting portion of the projection and the square hole, a V-shaped groove formed between the packing attached to the door and the curved corner arc portion. Since it is blocked, there is an effect that a dustproof structure can be obtained.

In the control panel housing according to the third aspect of the present invention, the left and right side plates have upper bent portions formed at the upper ends thereof, and have vertical legs and horizontal legs formed so as to project from the edges of the upper bent portions of the side plates. -A vertical member of the corner member is closely contacted with the inside of the upper portion of the left and right side plates, and a horizontal leg of the corner member is closely contacted with the inside of the upper bent portion of the left and right side plates. The plate is placed on the upper surface of the horizontal leg of the corner member, and the weight of the top plate fixed to the left and right edges of the top plate by abutting the upper bent portions of the left and right side plates is fixed by the horizontal leg of the corner member. Since it supports, workability is improved.

In the control panel housing according to the fourth aspect of the present invention, the hinge metal fitting screwed and fixed to the top of the housing and the hinge pin are fixed to the hinge metal fitting and fitted on the upper surface of the door. Since the corner member is screwed into the horizontal leg, welding of the nut member to the inner surfaces of the side plate and the top plate can be omitted, and the rigidity of the housing is improved.

In the control panel housing according to the fifth aspect of the present invention, the door has an inner bent portion formed around the front opening flange of the housing opening, and packing is attached to the inner bent portion of the door, and left and right side plates are attached to the door. Is formed with a front bending portion, and the front bending portion is provided with an opening for positioning, and the opening is for positioning at a contact surface of the packing against which the packing of the door is pressed or a position inside the board from the contact surface. Since the opening is closed by the packing in the door closed state, there is an effect that a dustproof structure can be obtained.

In the method of assembling the control panel housing according to the sixth aspect of the present invention, the left and right side plates are fitted with the pin holes of the bottom plate and the openings for positioning the front bent portions of the left and right side plates. Since they are positioned at a right angle to the upper surface and are assembled by using a jig that clamps each of the left and right side plates to the bottom plate, there is an effect that the distance between the door and the side plate can be set to a predetermined dimension.

The control panel housing according to the seventh aspect of the present invention comprises a wall plate having left and right side plates, a top plate, and four side walls fixed to the inner surfaces of the bottom plate and having left and right bent portions formed therein. Since the bent portions of are joined to the top plate and the bottom plate respectively, and the left and right bent portions of the wall plate are joined to the inner surfaces of the left and right side plates with adhesive tape or adhesive, the wall plate and the left and right side plates are welded. There is an effect that can be made unnecessary.

In a control panel housing according to an eighth aspect of the present invention, the center column has a front leg and left and right side legs, and is formed in a U-shaped cross section, and protrusions are formed at the upper and lower ends of the side leg. A bottom flange member in which a square hole is formed in an inwardly bent portion of the top plate and a square hole is formed in a horizontal leg, and the projection at the lower end is a square hole in the horizontal leg of the lower flange member. Since the protrusion at the upper end is fitted into the square hole of the inner bent portion of the top plate, the center pillar can be easily fitted to the lower flange member, so that the double door can be easily opened. is there.

[Brief description of drawings]

FIG. 1 is a partially exploded perspective view of a first embodiment of a control panel housing according to the present invention.

2 is a cross-sectional view taken along the line AA shown in FIG.

FIG. 3 is a cross-sectional view taken along the line BB shown in FIG.

FIG. 4 is a partially cutaway front view of the first embodiment of the control panel housing according to the present invention.

FIG. 5 is an external perspective view of the first embodiment of the control panel housing according to the present invention.

FIG. 6 is a partially cutaway front view showing a state in which the jig of Example 1 of the control panel housing according to the present invention is mounted.

FIG. 7 is a partially cutaway vertical sectional view showing a state in which the jig of Example 1 of the control panel housing according to the present invention is mounted.

FIG. 8 is a longitudinal sectional view of a main part of the control panel housing according to the first embodiment of the present invention.

FIG. 9 is a perspective view of essential parts of a second embodiment of the control panel housing according to the present invention.

FIG. 10 is a plan view of an essential part of FIG.

FIG. 11 is a partially exploded perspective view of a conventional control panel housing.

FIG. 12 is a cross-sectional view taken along the line DD shown in FIG.

13 is a cross-sectional view taken along the line EE shown in FIG.

[Explanation of symbols]

 21 case 22 bottom plate 22A pin hole 23 side plate 23A front and rear bending legs 23B inner bending portion 23C lower bending portion 23D upper bending portion 23E upper cutout portion 23F semicircular groove 23G first cutout portion 23H second cutout portion 23J -Na square hole 23K, 23L opening 24 Corner member 24A Vertical leg 24B Horizontal leg 24C Hinge fixing part 25 Top plate 25A Front bending part 25B Inner bending part 25C Semicircular groove 26 Partition plate 27 Lower flange member

Claims (8)

[Claims] 1. A left and right side plate, a top plate and a bottom plate fixed to upper and lower end portions of the left and right side plates respectively, a door at a front housing opening, the top plate and the left and right side plates. Also, in a control panel housing including a lower flange member that constitutes a front flange of the housing opening, a lower bent portion is formed on the inner surface of the bottom plate at the lower ends of the left and right side plates, and the lower flange member is at least the bottom plate. A horizontal leg fixed to the upper surface and a vertical leg that is formed between the left and right side plates are formed. The lower bent portions of the left and right side plates and the positioning recesses on the left and right ends of the horizontal leg of the lower flange member. Alternatively, one of the positioning protrusions is formed, and the positioning recess and the positioning protrusion are fitted to each other on the top surface of the bottom plate. 2. Right and left side plates, a top plate and a bottom plate fixed to upper and lower end portions of the left and right side plates, a door at a front housing opening, the top plate and the left and right side plates, respectively. In a control panel housing including a lower flange member that constitutes a front flange of the housing opening together with the door, an inner bent portion is formed around the door facing the front flange of the housing opening. The front edge of the side plate has a front bent portion and an inner bent portion, and is formed by bending it into a substantially U-shaped cross section. Square holes are formed in the bending corner portions of the front bent portion and the inner bent portion. The lower flange member is provided with a horizontal leg fixed to the upper surface of the bottom plate and a vertical leg formed to rise between the left and right side plates, and protrusions are formed at the left and right ends of the vertical leg of the lower flange member. , The protrusion is fitted into the square hole, and the inner bent portion of the door is Control panel housing, characterized in that it is attached packing paste located in the fitting portion of the projection and the angle hole. 3. A control panel housing having left and right side plates, a top plate and a bottom plate fixed to upper and lower end portions of the left and right side plates respectively, and a control panel housing provided with a door at a front housing opening. The side plate of the side plate is provided with an upper bent portion at its upper end, and is provided with a corner member having a vertical leg and a horizontal leg formed so as to project from the edge of the upper bent portion of the side plate. The legs are closely attached to the inside of the upper portions of the left and right side plates, and the horizontal legs of the corner members are closely attached to the inside of the upper bent portions of the left and right side plates, respectively, and the top plate is attached to the horizontal legs of the corner members. A control panel housing, which is mounted on a top surface and is fixed to the left and right edges of the top plate by abutting on the edges of the left and right side plates. 4. The door for closing the opening of the housing has a structure in which the top and bottom are rotatably supported by a hinge pin, and a hinge fitting fixed to the top of the housing by a screw and the hinge pin are fixed to the hinge fitting. The control panel housing according to claim 3, wherein the hinge fitting is fitted on the upper surface of the door, and the hinge fitting is screwed to a horizontal leg of the corner member. 5. A control panel housing having left and right side plates, a top plate and a bottom plate fixed to upper and lower end portions of the left and right side plates respectively, and a door at a front housing opening portion, wherein the door is provided. Is formed with an inner bent portion around the front opening flange of the housing opening, a packing is attached to the inner bent portion of the door, and front bent portions are formed on the left and right side plates, respectively. Has an opening for positioning,
The control panel housing is characterized in that the opening is located at a contact surface of the packing against which the packing of the door is pressed or a position inside the board from the contact surface. 6. A left and right side plate, a top plate and a bottom plate fixed to upper and lower end portions of each of the left and right side plates respectively, a front housing opening is provided with a door, and at least the front surface of the bottom plate is at least the above. In a method of assembling a control panel housing, the hinge plate provided on the lower surface of the door is fitted into the pin hole formed in the front surface protruding portion of the bottom plate, the pin hole of the bottom plate being provided. The left and right side plates are positioned at right angles to the top surface of the bottom plate, and the left and right side plates are clamped to the bottom plate. 6. The method of assembling a control panel housing according to claim 5, wherein the jig is assembled using a jig. 7. A control panel housing having left and right side plates, a top plate and a bottom plate joined to upper and lower end portions of the left and right side plates respectively, and a door at a front housing opening, wherein the left and right side plates are provided. A side plate, a top plate, and a wall plate having upper and lower bent portions formed on four sides fixed to the inner surfaces of the bottom plate, and the upper and lower bent portions of the wall plate are joined to the top plate and the bottom plate, respectively. The control panel housing according to any one of claims 1 to 6, wherein the left and right bent portions of the wall plate are joined to the inner surface of each of the left and right side plates with an adhesive tape or an adhesive. 8. The front edge portion of the top plate has a front bent portion and an inner bent portion, and the vertical cross section of the front edge portion is bent and formed into a substantially U shape. In a control panel housing, which is divided into a plurality of sheets and in which a central pillar is disposed at a joint between the left and right doors, the central pillar has a front leg and left and right side legs, and has a U-shaped cross section. Protrusions are formed at the upper and lower ends of the side legs, a square hole is formed in the inwardly bent portion of the top plate, and a lower flange member having square holes is formed in the horizontal leg is provided. 8. The projection part is fitted in a square hole of a horizontal leg of the lower flange member, and the projection part of the upper end is fitted in a square hole of an inwardly bent part of the top plate. Control panel housing described in one.