KR102399498B1 - How to make the housing - Google Patents

Abstract

A method of manufacturing a housing in which an orthogonal relationship is maintained between adjacent surfaces is provided. In the manufacturing method of the housing, the molten metal is injected into the cavity of the inside of the first mold having the first mold and the second mold corresponding to the first part having two plate parts connected so that the angle formed by the main surface is 90 degrees, , a first part forming step of forming a first part by molding two main surfaces of the two plate parts with only one of the first and second molds, and two plate parts connected so that the angle between the main surfaces is 90 degrees Molten metal is poured into the cavity of the second mold having the third mold and the fourth mold corresponding to the second part having A second part forming step of forming a second part by molding only with a mold is provided.

Description

How to make the housing

The present invention relates to a method of manufacturing a housing for manufacturing a housing by die casting.

Conventionally, in manufacturing a housing for accommodating a control board, there is a case where the housing is manufactured by die casting. Patent Document 1 discloses that a housing for accommodating a control board is manufactured by die casting. In Patent Document 1, a housing is manufactured by die casting using aluminum.

Japanese Patent Laid-Open No. 2001-357925

In Patent Document 1, a plurality of parts configured in a U-shape are manufactured by die-casting, and a housing is manufactured by assembling the manufactured U-shaped parts.

In order to manufacture a component by die-casting, the process of taking out the component manufactured by die-casting from a metal mold|die is required. Generally, when manufacturing a part by die-casting, it becomes necessary to form a draw-out gradient in a part so that it may withdraw|derive from a metal mold|die. Accordingly, it becomes necessary for the part to be formed having a tapered shape.

However, if the part is formed into a tapered shape to be taken out of the mold, there is a possibility that the perpendicular relationship between the adjacent sides of the housing cannot be maintained. In particular, when a part has three faces and a U-shaped shape is formed by those three faces, there is a possibility that the relationship between the three faces of the part where adjacent faces intersect at right angles cannot be maintained. there is. Therefore, as a result of the housing being assembled and manufactured, there is a possibility that the relationship in which adjacent faces intersect at right angles may not be maintained.

It is conceivable that the housing housing the control board is arranged not only with the wide surface grounded in some cases, but also with the narrow surface grounded and erected by changing its posture in consideration of the arrangement space. In such a case, the housing may be considered to be disposed in an inclined state if a vertical relationship is not maintained between adjacent sides of the housing. If the housing is disposed at an angle, it may fall over while the housing is installed, and the shock at this time may cause a malfunction of the housing.

In addition, since the part is formed in a tapered shape to be taken out from the mold, as a result of assembling the housing by the part taken out from the mold, the inner surfaces facing the housing are not parallel, and some space inside the housing is narrowed. case can be considered. In this case, when the space inside the housing becomes narrow, there is a possibility that the capacity that can be accommodated in the housing decreases.

Accordingly, an object of the present invention is to provide a method of manufacturing a housing in which a vertical relationship is maintained between adjacent surfaces in view of the above circumstances.

The manufacturing method of the housing of this invention is a 1st type|mold and a 2nd type|mold corresponding to the 1st part provided with the 2 plate part connected so that the angle formed by the main surface may become 90 degrees, The 1st type is provided. 1 A first part forming process in which molten metal is poured into a cavity inside a mold, and the two main surfaces of the two plate parts are molded with only one of the first and second molds to form the first part; , molten metal is poured into the cavity of the second mold having the third mold and the fourth mold corresponding to the second part having two plate parts connected so that the angle formed by the main surface is 90 degrees, and the two plate parts a second part forming process of forming the second part by molding the two main surfaces with only one of the third and fourth molds; the first part obtained in the first part forming process; A housing forming member assembling step of forming a housing forming member having three plate portions by assembling the second component obtained in the second component forming step, and using the housing forming member obtained in the housing forming member assembling step and a housing forming step of forming a housing by doing so is provided.

In the manufacturing method of the housing of the said structure, the molten metal in the cavity inside the 1st mold provided with the 1st type|mold and 2nd type|mold corresponding to the 1st part provided with two plate parts connected so that the angle formed by the main surface may become 90 degrees. By injecting and molding the two main surfaces in the two plate parts with only one of the first and second molds, the first part is formed in the first part forming process of forming the first part, and the main surface is Molten metal is poured into the cavity inside the second mold having the third mold and the fourth mold corresponding to the second part having two plate parts connected so that the angle formed is 90 degrees, and the two main surfaces in the two plate parts Since the second part is formed in the second part forming process of forming the second part by molding only one of the 3rd and 4th molds, 2 connected so that the angle formed by each main surface is 90 degrees It is possible to form a first part and a second part having four plate parts. Accordingly, the housing formed using these parts is formed so that the angle formed by the main surface in the adjacent surface is 90 degrees.

In addition, in the first part forming process and the second part forming process, each cavity has an intersection formed by intersecting the main surfaces of the two plate parts in each of the first mold and the second mold is the lowermost part It may be formed so as to be located in

Since the intersection line formed by intersecting the main surfaces of the two plate parts inside the first mold and the second mold is located at the lowest side, the separation of the first part and the second part from the first mold and the second mold is reduced. can be performed smoothly.

Further, in the first part forming process and the second part forming process, each cavity has an extension direction of one plate part from the intersection in each of the first mold and the second mold is inclined with respect to the horizontal plane You may provide so that a said 1st component and a said 2nd component may be formed in an attitude|position.

In the interior of the first mold and the second mold, the first part and the second part are formed in a posture in which the extending direction of one plate part is inclined with respect to the horizontal plane from the intersection formed by intersecting the outer surfaces of the two plate parts, Separation of the first part and the second part from the first mold and the second mold can be performed more smoothly.

Further, the molten metal may be formed by melting aluminum.

Since the molten metal is formed by melting aluminum, the manufactured housing is formed of aluminum. Since the housing is made of aluminum, heat generated inside the housing can be efficiently radiated to the outside.

Further, the housing may be a housing for a controller that accommodates the control board.

Since the housing is a housing for a controller accommodating the control board, it becomes possible in the housing for the controller to be formed so that, between adjacent outer surfaces, the outer surfaces are at right angles.

In addition, the control board may be a control board for controlling the robot.

Since the housing is a controller accommodating the control board for controlling the robot, in the housing for the controller accommodating the control board for controlling the robot, it is possible to form between adjacent outer surfaces so that the outer surfaces are at right angles will do

Further, in the manufacturing method of the housing of the present invention, the cavity of the third mold having the fifth mold and the sixth mold corresponding to the third part having two plate parts connected so that the angle formed by the main surface is 90 degrees a third part forming step of pouring molten metal into the molten metal and forming the third part by molding the two main surfaces of the two plate parts with only one of the fifth and sixth molds; and forming the third part; A housing forming member assembling step of forming a housing forming member including three plate portions by assembling two of the third components using two of the second parts obtained in the step, and the housing forming member assembling step; and a housing forming step of forming a housing using the housing forming member obtained in .

In the method for manufacturing the housing having the above configuration, the molten metal is placed in a cavity inside a third mold having molds 5 and 6 corresponding to the third part having two plate parts connected so that the angle formed by the main surface is 90 degrees. At the same time, the third part is formed in the third part forming step of forming the third part by injecting the Since two third parts are used to assemble the two third parts to form a housing forming member having three plate parts, two three third parts may be formed. Accordingly, the housing formed by using the two third parts is formed so that an angle between the main surfaces of the adjacent surfaces is 90 degrees.

According to the present invention, since the housing formed so that the angle formed by the main surface is 90 degrees on the adjacent surface is manufactured, it is possible to provide a housing that can be arranged in a stable state even if the grounding surface is changed.

1 is a perspective view of a housing manufactured by a method of manufacturing a housing according to an embodiment of the present invention.
FIG. 2 is a block diagram of a housing and a robot when the housing of FIG. 1 is used as a housing for a robot controller.
3 is a perspective view of a housing forming member positioned under the housing of FIG. 1 .
FIG. 4 is a perspective view of the housing forming member in a state in which the housing forming member of FIG. 3 is divided into two parts;
Fig. 5 shows a cross section of a mold and a part when the parts constituting the housing forming member of Fig. 3 are formed by die casting.
Fig. 6 (a) to (d) are block diagrams showing each process when the parts constituting the housing forming member of Fig. 3 are formed by die casting.
7 is a flowchart illustrating a flow when the housing of FIG. 1 is manufactured.
Fig. 8 is a side view showing the parts in each process when the accessories are installed inside the parts constituting the housing forming member of Fig. 3;

Hereinafter, a method of manufacturing a housing according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 shows a perspective view of a housing 100 manufactured by a method of manufacturing a housing according to an embodiment of the present invention.

According to the present embodiment, the housing 100 has a rectangular parallelepiped shape. Accordingly, the housing 100 is formed so that adjacent surfaces intersect at right angles. The housing 100 accommodates the control board of the robot therein and is configured as a housing of a robot controller that controls the robot.

Fig. 2 shows a configuration diagram in a case where the housing 100 of the present embodiment is used as a housing of a robot controller that controls the robot 60. As shown in FIG.

As shown in FIG. 2 , the housing 100 of this embodiment accommodates a control board 80 for controlling the operation of the robot 60 therein. Accordingly, the housing 100 functions as a housing for the controller accommodating the control board 80 . According to this embodiment, the robot 60 is used as a multi-axis industrial robot.

Here, according to the present embodiment, the robot controlled by the control board accommodated in the housing is described as an industrial robot, but the present invention is not limited to the above embodiment. The robot controlled by the control board accommodated inside the housing may be another type of robot. The robot may be of any type as long as it is controlled by a control board inside the housing. In addition, the control board accommodated inside the housing may not be for controlling the robot. A control board for controlling things other than the robot may be housed inside the housing. In addition, it is not necessary that the control board is accommodated inside the housing. The present invention may be applied to a housing for housing other than a control board.

According to this embodiment, the housing 100 is formed of aluminum. When the housing 100 is used as a robot controller, large heat is generated from the control board 80 while the robot 60 is operating. Accordingly, the housing 100 is made of aluminum with high heat dissipation properties.

In addition, according to the present embodiment, the housing 100 having a rectangular parallelepiped shape is formed by using the housing forming member 10 having a U-shaped cross section.

3 is a perspective view of two housing forming members 10 constituting the housing 100 . The housing forming member 10 is provided with a grounding surface at the lower portion of the housing 100 .

The housing forming member 10 is formed in a U-shape in cross section by vertically connecting three plate-shaped portions, respectively. In addition, the housing forming member 10 having a U-shaped cross section is formed by assembling two L-shaped parts.

Fig. 4 shows a perspective view of the housing-forming member 10 in a state in which the housing-forming member 10 is divided into two parts (a first part and a second part) 11 and 12 .

The parts 11 and 12 are respectively connected so that the angle formed by the main surface in the plate part of two plate-shaped parts becomes 90 degrees, and the cross section is formed in L-shape. According to this embodiment, the component 11 is connected so that the angle between the main surfaces of the two plate portions 11a and 11b is 90 degrees, so that the cross section is formed in an L-shape. That is, the two plate parts 11a, 11b are connected so that the angle which the main surface makes may become 90 degrees. According to the present embodiment, the main surface of the two plate portions 11a and 11b is the outer surface of the plate portions 11a, 11b. Similarly, the component 12 is connected so that the angle formed by the main surfaces of the two plate parts 12a and 12b becomes 90 degrees, so that the cross section is formed in an L-shape. That is, the two plate parts 12a, 12b are connected so that the angle formed by a main surface may become 90 degrees. According to the present embodiment, the main surface of the two plate portions 12a, 12b is the outer surface of the plate portions 12a, 12b.

Next, a method of manufacturing the housing 100 will be described.

According to this embodiment, a part 30 constituting a part of the housing forming member 10 and having an L-shaped cross section is formed by die casting. The part 30 is comprised so that the cross section may become L-shaped by the two plate parts 30a, 30b orthogonal to it.

Fig. 5 shows a cross-sectional view of the mold 50 and the part 30 when the part 30 is formed by die casting.

The mold (1st mold) 50 is equipped with the upper mold (1st mold) 51 and the lower mold (2nd mold) 52. The upper mold 51 and the lower mold 52 are configured to be relatively close and spaced apart.

Between the upper die 51 and the lower die 52 , a cavity 53 is formed corresponding to the shape of the component 30 . The cavity 53 is for forming the part 30 formed by the two orthogonal plate parts 30a, 30b by die-casting. When the component 30 is manufactured, the molten aluminum molten metal is press-fitted into the cavity 53 . Then, the molten metal is cooled inside the cavity 53, and the component 30 is formed by solidifying the molten metal there. Accordingly, as a result, a part 30 having a shape according to the shape of the cavity 53 and formed of aluminum is formed.

The cavity 53 is formed in the metal mold|die 50 corresponding to the component 30, and is provided with the cavities 53a, 53b for board parts corresponding to two board parts 30a, 30b orthogonal to it. The cavity 53 is formed so that the intersection line l formed by intersecting the main surfaces of the two plate portions 30a and 30b inside the mold 50 is disposed at the lowermost position. That is, the cavity 53 is formed so that the position corresponding to the intersection line l formed by crossing the two plate parts is located at the lowermost side in the mold 50 . Moreover, the cavity 53 is formed so that the component 30 may be formed in the attitude|position inclined with respect to the horizontal plane in the extending direction of the one board part 30b from the intersection line l. Accordingly, in the cavity 53 , the position corresponding to the intersection line l formed by crossing the two plate portions 30a and 30b is the lowermost position. Moreover, in the cavity 53, the extending direction of the site|part forming the board part 30b is inclined with respect to the horizontal plane from the intersection line 1, and is formed.

Therefore, according to the present embodiment, among the two plate parts 30a and 30b formed on the part 30, the extending direction of the plate part 30b located on the lower side in the mold 50 is inclined with respect to the horizontal plane, the part (30) is formed. According to this embodiment, the component 30 is formed in a posture in which the extending direction of the plate portion 30b is inclined at an angle α of 1 degree or more and 2 degrees or less to the horizontal plane.

In addition, since the two plate parts 30a and 30b formed in the part 30 are orthogonal to each other, among the two plate parts 30a and 30b formed in the part 30, the plate part located at the upper side in the mold 50 ( The component 30 is formed in an inclined position with respect to the vertical direction also with respect to the extension direction of 30a). According to this embodiment, the component 30 is formed in a posture in which the extending direction of the plate portion 30a is inclined at an angle α of 1 degree or more and 2 degrees or less with respect to the vertical direction. In particular, it is preferable that the angle α at which the plate part 30b is inclined with respect to the horizontal plane and the extension direction of the plate part 30a is inclined with respect to the vertical direction is 1.5 degrees or more. Here, when it inclines too much, it may become difficult to take out from a metal mold|die by the shape, such as a screw hole formed in the board part. Accordingly, in this embodiment, the angle α at which the plate portion 30b is inclined with respect to the horizontal plane and the angle α at which the extending direction of the plate portion 30a is inclined with respect to the vertical direction is preferably an angle of 1 degree or more and 2 degrees or less. .

Each process when the component 30 is formed by die-casting is demonstrated with reference to FIGS. 6(a) - (d). In addition, FIG. 7 shows a flowchart of a flow when the housing 100 is manufactured by the manufacturing method of the housing 100 of the present embodiment.

First, as shown in FIG. 6( a ), the upper mold 51 and the lower mold 52 are brought into close proximity in the mold 50 , and as shown in FIG. 6( b ), the upper mold 51 and the lower mold 52 . ) to be in contact. The cavity 53 is formed between the upper die 51 and the lower die 52 when the upper die 51 and the lower die 52 come into contact with the die 50 to be in a closed state.

When the cavity 53 is formed, as shown in FIG. 6(c) , aluminum is heated inside the cavity 53 inclined in the mold 50 and molten molten metal is injected. Here, the molten metal is injected into the cavity 53 in a state in which pressure is applied to the molten metal so that the molten metal touches all corners of the cavity 53 . In this way, the molten metal is press-fitted into the cavity 53 (S1).

When the molten metal is press-fitted into the cavity 53 and the mold 50 is cooled, the molten metal solidifies inside the mold 50 to form the part 30 in a shape corresponding to the cavity 53 . Accordingly, a part 30 having a desired shape is formed inside the cavity 53 .

When the part 30 is formed in the cavity 53 , the upper mold 51 and the lower mold 52 are spaced apart from each other in the mold 50 ( S2 ). When the upper mold 51 and the lower mold 52 are spaced apart, as shown in FIG. 6( d ), the part 30 formed between the upper mold 51 and the lower mold 52 is extracted from the cavity 53 . According to this embodiment, when the upper mold 51 and the lower mold 52 are relatively spaced apart, the part 30 is extracted from the cavity 53 with the part 30 attached to the upper mold 51 . When the part 30 is extracted from the cavity 53 , the part 30 is separated from the upper mold 51 , and the part 30 is extracted from the mold 50 ( S3 ).

At this time, the mold 50 is divided into two into an upper mold 51 and a lower mold 52 , and the two outer surfaces (main surfaces) of the two plate parts 30a and 30b are formed by the upper mold 51 and the lower mold 52 . ), the part 30 is formed by molding with only one of the molds. According to the present embodiment, two outer surfaces (main surfaces) are formed in the two plate portions 30a and 30b by molding the lower die 52 .

In this way, according to the present embodiment, the component 30 is manufactured by die casting. According to this embodiment, a plurality of parts 30 of different types are formed by die casting, and one part 11 of the parts 30 is the parts 11 and 12 constituting the housing forming member 10 . It functions as one part (1st part) 11 in one. In addition, the metal mold|die which forms the one part 11 functions as one metal mold|die (1st metal mold|die) 50. In this way, one of the components 11 and 12 constituting the housing forming member 10 is formed by die casting (a first component forming step). When the one component 11 is formed inside the one metal mold|die 50, the one component 11 will be extracted from the one metal mold|die 50 (S3).

When one component 11 is formed by die-casting, the other component (2nd component) 12 is formed among the components 11 and 12 which comprise the housing forming member 10. As shown in FIG.

As shown in Fig. 4, since one part 11 and the other part 12 have different shapes, the mold used to produce one part 11 when producing the other part 12 ( The other mold (2nd mold) different from 1st mold) is used. However, since the one component 11 and the other component 12 have substantially the same structure, in the manufacturing process of the other component 12, the same manufacturing process as the manufacturing process of the one component 11 is used. . Therefore, also in the case of manufacturing the other component 12, it is manufactured by the manufacturing process shown in FIG.6(a)-(d).

That is, as shown in FIG. 6(a), in a state where the upper mold (third mold) and the lower mold (fourth mold) of the other mold (second mold) are spaced apart, as shown in FIG. 6(b) Similarly, the upper mold and the lower mold of the other mold abut, and a cavity is formed therebetween. When a cavity is formed between the upper and lower molds of the other mold, as shown in FIG. 6(c), the molten metal is press-fitted into the cavity formed at an angle in the other mold (S4). When the molten metal is press-fitted into the other mold, the other mold is cooled there, and the molten metal solidifies inside the other mold to form the other part. Thereby, the other component (2nd component) is formed in the inside of a cavity (2nd component formation process). When the other part is formed inside the cavity, the upper mold and the lower mold are separated from the other mold (S5). As the upper and lower molds are separated from each other, as shown in Fig. 6(d), the other part formed between the upper and lower molds attaches to the upper mold and is extracted from the cavity. When the other part is extracted from the cavity, the other part is separated from the upper mold, and the other part is extracted from the other mold (S6).

Here, according to the present embodiment, a configuration in which the two parts 11 and 12 have different shapes is described. Therefore, the form in which the shape of a cavity differs between one metal mold|die (1st metal mold|die) for forming the component 11, and the other metal mold|die (2nd metal mold|die) for forming the component 12 is demonstrated. However, the present invention is not limited to the above embodiment. The shape of the component 11 (1st component) and the shape of the component 12 (2nd component) may be the same shape.

In this case, the metal mold|die for forming the component 11 and the metal mold|die for forming the component 12 may be common. Two parts (third part) having the same shape are produced by a common mold (third mold) having a common upper mold (fifth mold) and a lower mold (6th mold) to constitute the housing forming member 10 Two parts may be formed. That is, the process (3rd component formation process) of forming two common components (3rd component) is repeated twice, and two common components are formed. In this way, since the two parts (third part) are produced by a common mold, the number of necessary molds can be reduced, and the manufacturing cost of the housing 100 can be suppressed to a small extent.

When both of the two components 11 and 12 constituting the housing forming member 10 are formed by die casting, the housing forming member 10 is formed by assembling the components 11 and 12 (housing forming). member assembly process) (S7). According to this embodiment, the housing forming member 10 is assembled by fastening the two parts 11 and 12 to each other with screws.

Here, when two parts are formed by a common metal mold|die, the housing forming member 10 may be formed by using two common parts obtained there and assembling two parts. At this time, the housing forming member 10 may be assembled by fastening two common components with a screw.

By fastening the two parts 11 , 12 to each other, the housing forming member 10 is formed. According to this Example, the board part 11b of the two board parts 11a, 11b with which one component 11 is equipped, and the board part 12a of the board parts 12a, 12b with which the other component 12 is equipped. are connected to each other to form one plate portion 13 . Accordingly, as a result, the housing forming member 10 is provided with the three plate portions 11a, 13 and 12b.

Since the plate part 11a and the plate part 11b which comprise one component 11 are connected so that the angle which a main surface makes may become 90 degrees, the board part 11a and the plate part 13 are the angles which the outer surfaces make. It is connected so that it may become this 90 degree|times. In addition, since the plate part 12a and the plate part 12b which comprise the other component 12 are connected so that the angle formed by the outer surfaces may become 90 degrees, the plate part 11a and the plate part 13 are the outside They are connected so that the angle formed by the planes becomes 90 degrees. Accordingly, the three plate portions 11a, 13, and 12b constituting the housing forming member 10 are each configured such that the angle formed by the outer surfaces is 90 degrees, and are connected in a U-shape.

After the housing forming member 10 is formed, the housing 100 is formed using the housing forming member 10 (housing forming process) (S8). According to the present embodiment, the housing 100 is formed by attaching the other side to the U-shaped housing forming member 10 , while mounting the surface positioned above the housing 100 .

As shown in FIG. 1 , in the housing 100 , a surface F1 that is grounded to become a bottom surface, a surface F2 adjacent to the surface F1 , and a surface facing the surface F2 (not shown) This, as the housing forming member 10, is integrally formed by die-casting. A surface other than the surface F1 , the surface F2 , and the surface facing the surface F2 is mounted on the housing forming member 10 to form the housing 100 .

In this way, the parts 11 and 12 obtained by die casting are assembled to form the housing forming member 10 , and the housing forming member 10 is used to form the housing 100 .

Here, according to the above embodiment, a form in which the housing forming member 10 is formed by assembling the two parts 11 and 12 by fastening with screws is described. However, the present invention is not limited to the above embodiment, and the assembly between the parts may be made by a method other than fastening with screws. For example, the assembly between the parts may be made by other methods such as adhesion with an adhesive.

According to the present embodiment, the parts 11 and 12 are formed by die casting, and the housing forming member 10 is formed by assembling the parts 11 and 12 . The housing forming member 10 is formed by respective die-casting of the parts 11 and 12 to be divided. Therefore, when manufacturing the components 11 and 12 by die-casting, in order to manufacture the components 11 and 12 comprised with two board parts, respectively, the L-shape to which the two board parts were connected to the components 11 and 12, respectively. It can be formed in the shape of a mold. In addition, since each of the parts 11 and 12 has two plate parts and is formed in an L-shape, the two plate parts are connected in a state that the relationship such that the angle between the outer surfaces is 90 degrees is maintained, (11, 12) can be formed. In this way, between the adjacent surfaces of the housing forming member 10, the outer surfaces are connected so that the angle formed by 90 degrees, the housing 100 is formed. Therefore, in the housing 100, between the adjacent plate members, the outer surfaces are connected so that the angle formed by 90 degrees. Accordingly, in the housing 100 , the relationship in which the angle formed by the outer surfaces between the adjacent plate members is 90 degrees is maintained.

In particular, the plate parts 11a, 13, 12b are connected to each other so that the angle formed by the outer surfaces of the three plate parts 11a, 13, 12b constituting the housing forming member 10 is 90 degrees. Since the relationship in which the angle between adjacent surfaces of the housing 100 is 90 degrees is maintained, even if the grounding surface of the housing 100 is changed, the housing 100 can be disposed in a stable state. Even if the position of the housing 100 is changed to match the installation space of the housing 100 , the housing 100 can be stably arranged. When a small space for placing the housing 100 is empty, the empty space The housing 100 may be disposed by changing the posture to suit. For example, even when there is no installation space outside of an elongated narrow space, the housing 100 can be stably arranged while changing the posture of the housing 100 to match the installation space. Accordingly, the space for the installation of the housing 100 can be used more efficiently. In addition, since the housing 100 can be stably disposed, it is possible to suppress the housing 100 from falling down, thereby improving the reliability of the housing 100 . Therefore, when the housing 100 is used as a controller of the robot, the reliability of the controller can be improved.

In particular, when installing a robot, the installation space of the housing 100 as a controller housing the control board 80 may be limited depending on the place where the robot is installed. In such a case, it is required to change the posture to fit the limited space, and to arrange the housing 100 to fit the space. For example, when the installation space has an elongated shape, in the state of the housing 100 shown in FIG. 1 , it is conceivable to change the posture to arrange the housing 100 in the installation space. In the state shown in FIG. 1 , the housing 100 is disposed in a state where the face F1 is grounded, but it is conceivable to change the posture to arrange the face F2 in a grounded state. In this way, by changing the posture of the housing 100 to be disposed, when the installation space is long and thin, the housing 100 can be arranged to fit the long and thin installation space. Thereby, the installation space can be used efficiently.

In addition, since the orthogonal relationship between the adjacent surfaces of the housing 100 is maintained, the quality of the design surface of the housing 100 can be improved.

In addition, according to this embodiment, the mold 50 is divided into two into an upper mold 51 and a lower mold 52, and the two outer surfaces (main surfaces) in the two plate parts 30a and 30b are formed by the upper mold 51 . And the component 30 is formed by shape|molding with only one type|mold among the lower die 52. Accordingly, in the plate portions 30a and 30b, the outer surface as the main surface is molded and formed by one die (lower die 52). Accordingly, it is possible to precisely form the outer surface of the plate portion (30a, 30b) in the plate portion (30a, 30b) so that the angle formed by the outer surface as the main surface of the plate portion (30a, 30b) is 90 degrees.

In addition, the component 30 is formed in an inclined posture inside the mold 50 . In the inside of the mold 50, an intersection line l formed by intersecting the outer surfaces of the two plate portions 30a and 30b is disposed at the lowest position, and from the intersection line 1, one plate portion 30b The cavity 53 is formed so that the part 30 is formed in a posture in which the extension direction of is inclined with respect to the horizontal plane. Therefore, the cavity 53 is formed so that it may become a convex shape downward toward the inside of the metal mold|die 50. As shown in FIG. In the cavity 53, it is comprised so that each of the part corresponding to the board parts 30a, 30b may have a subtraction gradient. Accordingly, in the component 30 manufactured by the mold 50 , even if the two plate portions 30a and 30b are formed so as to be orthogonal to each other, a subtraction gradient when the component 30 is taken out from the mold 50 is secured. Since the surface of the outer side of the board part 30a is inclined with respect to the vertical direction, and the surface of the outer side of the board part 30b is inclined with respect to the horizontal direction, the subtraction gradient of the component 30 is ensured. Accordingly, when the part 30 is manufactured by die casting and the part 30 is extracted from the mold 50 , the part 30 can be smoothly extracted from the mold 50 .

In addition, since the orthogonal relationship between the two plate portions is maintained in each of the parts 11 and 12 manufactured by die casting, as well as the outer surface, the housing forming member ( The orthogonal relationship between the adjacent plate members of 10) is maintained. Accordingly, when the housing 100 is assembled, an orthogonal relationship between the adjacent plate members in the housing 100 is maintained. At this time, the orthogonal relationship between the plate members constituting the housing forming member 10 in the housing 100 is maintained.

In addition, according to this embodiment, since there is no need to form a subtraction gradient in the part and it is not necessary to form the side surface of the plate part constituting the part in a tapered shape, the plate thickness of each plate part can be formed uniformly. . Accordingly, the quality of the design surface of the housing 100 can be further improved. Further, since the thickness of the plate parts constituting the part can be uniformly formed, the periphery of the portion to which the plate parts are connected is finished without being thickly formed. Accordingly, it is possible to secure a larger space in the periphery of the portion to which the plate portions are connected. Accordingly, accessories can be accommodated in the space around the portion to which the plate portions are connected, and more can be accommodated as a housing. In this way, the space inside the housing can be used more efficiently.

In general, when a housing is used as a controller of a robot, there is a high possibility that the housing becomes relatively large. If the housing is small, even if there is a difference of 90 degrees in the angle between the adjacent faces of the housing to form a draft from the mold, it is not a problem because the effect thereof is small. However, when the size of the housing becomes large, even if the angle formed by the adjacent faces slightly differs from 90 degrees, the influence thereof increases. When the size of the housing is large, even if the angle formed by the adjacent faces is slightly different at 90 degrees, the size of the gradient caused by the difference increases, so the difference in height between the ends of the opposite faces increases. Therefore, when the attitude is changed so as to change the grounding surface of the housing, since the grounding surface of the housing is inclined, the housing arrangement may become unstable. Since the housing is arranged in an unstable state, there is a possibility that the housing may topple over when there is a contact or vibration while the housing is arranged.

Conventionally, in the case of manufacturing a relatively large housing by die-casting, by forming a subtractive gradient, the angle of intersection of adjacent faces differs from a right angle. there was. Accordingly, it is possible to manufacture a housing in which the angle formed by the adjacent surfaces is maintained at 90 degrees. However, as a method of removing the protruding portion by cutting as described above, a step of removing the protruding portion from the housing is required, and unnecessary effort is required. In addition. The part to be removed is wasted useless, and the manufacturing cost of the extra material is increased.

In the housing 100 of the present embodiment, even in the case of a large housing 100, a gradient of subtraction from the mold 50 is ensured while the orthogonal relationship between the plate portions 30a and 30b is maintained. Since the relationship in which the angle formed between the plate parts 30a and 30b is 90 degrees is maintained, as a result, the relationship in which the angle formed between adjacent surfaces in the housing 100 is 90 degrees is maintained. Accordingly, even when the posture is changed to change the grounding surface of the housing 100 , the housing 100 can be disposed in a stable state.

Also, it is conceivable to change the structure of the mold in order to maintain the relationship in which the angle between adjacent surfaces is 90 degrees without forming a subtraction gradient. It is conceivable to maintain a perpendicular relationship between adjacent faces in a member by changing the mode and operation of clamping and closing between the dies in the mold. However, when die casting is performed by changing the mode and operation of clamping and clamping between the dies in the mold to correspond to the member, the shape and operation of the mold become complicated. Therefore, the manufacturing cost of a metal mold|die may become large.

According to this embodiment, the mold 50 is divided into two into an upper mold 51 and a lower mold 52, and the two outer surfaces (main surfaces) in the two plate parts 30a and 30b are formed by the upper mold 51 and the lower mold. The part 30 is formed by molding with only one mold in 52. The mold 50 is divided into two into the upper die 51 and the lower die 52, so that the angle between the outer surfaces as main surfaces in the plate portions 30a and 30b is 90 degrees, the outer surface in the plate portions 30a and 30b Since this is precisely formed, it is possible to precisely form a part that intersects so that the angle formed by the outer surfaces is 90 degrees by the mold 50 having a simple configuration. Since the configuration of the mold 50 can be simplified, the manufacturing cost of the housing 100 can be reduced.

Further, according to the present embodiment, the components 30 for forming the housing 100 are each formed of aluminum, and consequently the housing 100 is formed of aluminum. Accordingly, the housing 100 maintains high heat dissipation performance.

According to this embodiment, the housing 100 accommodates the control board 80 for controlling the operation of the robot 60 therein, and is configured as a robot controller. Accordingly, a large amount of heat is generated in the control board 80 . According to the present embodiment, since the housing 100 is formed of aluminum, heat generated from the control board 80 is efficiently discharged to the outside of the housing 100 . Therefore, the influence of heat on the function of the control board 80 can be suppressed to a small extent. In addition, since the housing 100 is made of aluminum, it is possible to reduce the weight of the housing 100 . Accordingly, it is possible to facilitate transportation of the housing 100 .

Further, according to this embodiment, the component 30 formed of aluminum is manufactured by die casting. Therefore, the parts 30, which are products of aluminum, can be mass-produced at low cost by die casting.

In addition, since the U-shaped housing forming member 10 is formed by assembling the L-shaped parts 30 and the box-shaped housing 100 is formed using the housing forming member 10, the L-shaped In the step of the component 30 of the component 30 may perform the operation of mounting the board or accessories. Since the board or accessory is mounted on the part 30 in the step of the L-shaped part 30 , the mounting operation of the board or accessory to the part 30 can be performed in an upwardly open space. Accordingly, it is easy to perform a mounting operation of the substrate or accessories to the housing 100 , and assembly including the mounting operation can be facilitated.

In addition, according to the present embodiment, as shown in FIG. 4 , various processing is performed on the inner surface of the housing 100 . In particular, when the housing 100 is used as a controller of the robot, when the substrate is mounted inside the housing 100 , heat generated from the substrate is transferred to the side surface of the housing 100 and the heat is transferred to the housing 100 side. It absorbs, and a part of the side surface of the housing 100 may be used as a heat sink (heat sink). In such a case, since a portion for placing a substrate and a portion for functioning as a heat sink are formed inside the side surface of the housing 100 , the inner shape of the side surface of the housing 100 may be complicated.

When the inner side of the side surface of the housing 100 is made into a complicated shape in this way, the processing of the inner side of the side surface of the housing 100 may be performed by machining. When processing for making the inner surface of the housing 100 into a complex shape is performed by machining, the blade of the cutting machine is put into the space surrounded by the plate-shaped member, so that the blade collides with the inner surface of the plate-shaped member Needs to be. When the member is formed in a U-shape, the space for inserting the blade is limited, and it may be difficult to put the blade into the space surrounded by the plate-shaped member.

According to this embodiment, processing may be performed on the inner surface in the step of the part 30 . According to the present embodiment, in the intermediate stage of manufacturing the housing 100 , the U-shaped housing forming member 10 is divided into L-shaped parts 30 . In the step of the L-shaped part 30 , since it is possible to perform processing on the inner surface, it is possible to perform processing on the inner surface of the component 30 without limiting the space in which the upper side is opened. Accordingly, the processing of the inner surface of the component 30 can be easily and precisely performed.

In addition, since the substrate or accessory is mounted on the part 30 in the step of the L-shaped part 30 , even when the accessory is mounted on the inner side of the housing 100 , the rear surface of the part 30 is grounded It is possible to perform the installation of accessories stably in the state of being

FIG. 8 is a side view showing the component 30 in each process when the accessory is attached to the component 30 . In FIG. 8 , a mode in which two upper and lower substrates are attached to the component 30 as accessories will be described.

First, as shown in Fig. 8(a) , the substrate 70 disposed below is mounted on the plate portion 30b on the grounded side of the component 30 . The substrate 70 is mounted along the inner surface of the plate portion 30b. At this time, the substrate 70 can be stably mounted to the plate part 30b in a state in which the surface of the outer side of the grounded plate part 30b is grounded.

When the mounting of the substrate 70 to the plate portion 30b on the grounded side is performed, as shown in FIG. 8(b) , the posture of the component 30 is changed and the grounded surface is changed. Accordingly, the plate portion 30b grounded when the substrate 70 is mounted is upright, and the upright plate portion 30a is grounded when the substrate 70 is mounted.

When the component 30 changes its posture and the plate portion 30a is grounded, the substrate 71 mounted above is attached to the plate portion 30a. The substrate 71 is mounted along the extending direction of the plate part 30b from the side surface of the plate part 30a. At this time, the substrate 71 can be stably mounted to the plate portion 30a in a state in which the surface of the outer side of the grounded plate portion 30a is grounded.

According to the present embodiment, in order to mount the substrate 71 to the plate portion 30a , the substrate 71 is mounted to the plate portion 30a via the support portion 72 . The substrate 71 is mounted on the support portion 72 , and the support portion 72 is mounted on the plate portion 30a by screws through a hole 73 formed in the support portion 72 . Therefore, the support part 72 can be attached to the board part 30a with a screw in the state orthogonal to the board part 30a with a screw. Accordingly, it is possible to perform the mounting of the support portion 72 to the plate portion 30a in a stable state.

Thus, according to this embodiment, since the accessory is mounted on the L-shaped component 30, it is possible to mount the accessory to the plate portion 30b in a state in which the outer surface of the plate portion 30b is grounded. In addition, accessories can be mounted on the inner surface of the plate portion 30a in a state in which the outer surface of the plate portion 30a is grounded. Therefore, with respect to both of the two board parts of the L-shaped component 30, a board part is grounded, and an accessory can be attached in the stable state. Accordingly, it is possible to facilitate the attachment of the accessory to the housing 100 . In addition, the accessory can be securely mounted to the housing 100 , thereby improving the reliability of the housing 100 .

Here, according to the embodiment, the molten metal is formed by melting aluminum, but the present invention is not limited to the embodiment. The molten metal may be formed of a material other than aluminum. Other types of molten metal may be used as long as the metal can form a housing.

30: parts
30a, 30b: Panbu
50: mold
53: cavity
100: housing

Claims (7)

Molten metal is injected into the cavity of the first mold having the first mold and the second mold corresponding to the first part having two plate parts connected so that the angle formed by the main surface, which is the outer surface of the plate part, is 90 degrees, a first part forming process of forming the first part by molding the two main surfaces of the two plate parts with only one of the first and second molds;
Molten metal is injected into the cavity of the second mold having the third and fourth molds corresponding to the second part having two plate parts connected so that the angle formed by the main surface, which is the outer surface of the plate part, is 90 degrees, a second part forming step of forming the second part by molding the two main surfaces of the two plate parts with only one of the third and fourth molds;
a housing forming member assembling step of assembling the first component obtained in the first component forming step and the second component obtained in the second component forming step to form a housing forming member having three plate portions; ,
and a housing forming step of forming a housing using the housing forming member obtained in the housing forming member assembling step. According to claim 1,
In the first part forming process and the second part forming process, each cavity is located in the lowermost part of the intersection formed by crossing the main surfaces of the two plate parts in each of the first mold and the second mold A method of manufacturing a housing, characterized in that it is formed to be. 3. The method of claim 2,
In the first part forming process and the second part forming process, each cavity is in a position in which the extending direction of one plate part from the intersection is inclined with respect to the horizontal plane in each of the first mold and the second mold The method of manufacturing a housing, characterized in that the first part and the second part are installed so as to be formed. 4. The method according to any one of claims 1 to 3,
The molten metal is a method of manufacturing a housing, characterized in that it is formed by melting aluminum. 4. The method according to any one of claims 1 to 3
The method of manufacturing a housing, characterized in that the housing is a housing for a controller accommodating the control board. 6. The method of claim 5,
The control board is a method of manufacturing a housing, characterized in that the control board for controlling the robot. Molten metal is injected into the cavity of the third mold having the fifth and sixth molds corresponding to the third part having two plate parts connected so that the angle formed by the main surface, which is the outer surface of the plate part, is 90 degrees, a third part forming process of forming the third part by molding the two main surfaces of the two plate parts with only one of the fifth and sixth molds;
a housing forming member assembling step of forming a housing forming member including three plate portions by assembling two third components using two of the third components obtained in the third component forming step;
and a housing forming step of forming a housing using the housing forming member obtained in the housing forming member assembling step.

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