Enclosure unit, enclosure, and molding apparatus

Abstract

To provide an enclosure unit with high assembly precision, a housing efficiently assembled from the enclosure unit, and a molding apparatus equipped with the enclosure.SOLUTION: Enclosure units 2 and 3 that constitute an enclosure body, the enclosure units 2 and 3 are provided with joining plates 2a and 3a at the joint surfaces with other enclosure units to improve the assembly accuracy of the enclosure body, and the joining plates 2a and 3a have their joint surfaces with other enclosure units machined.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a housing unit, a housing formed by assembling housing units, and a molding apparatus including the housing. [Background technology]

[0002] The housing that constitutes the structure is manufactured by combining multiple frames or pillars. If the assembly precision between the frames or pillars is low, the components will shrink or expand, causing the housing to deform. Housing deformation has a negative impact on the processing precision of the objects to be processed, especially in processing equipment that processes workpieces.

[0003] In order to improve the assembly accuracy of structures, for example, Patent Document 1 describes a method of forming a truss structure by joining and connecting frames having elongated joint surfaces to provide a structure that is less likely to deform. Also, Patent Document 2 describes a method of attaching corner fittings that intersect perpendicularly to the corners of a cabinet for a panel device to prevent the cabinet from deforming. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2023-165104 [Patent Document 2] Japanese Patent Application Publication No. 2017-225283 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the invention disclosed in Patent Document 1 is an invention in which tetramodules are formed using frames with elongated joint surfaces at the ridges of tetrahedrons, and the tetramodules are joined and connected to each other to form a delta polyhedron block. This type of structure cannot be applied to structures that are intended to be used as enclosures.

[0006] Furthermore, the invention disclosed in Patent Document 2 is an invention that improves assembly precision by using corner fittings, but the process of assembling the housing requires attaching many corner fittings one by one, which is time-consuming and complicated work.

[0007] In view of the above, an object of the present invention is to provide a housing unit with high assembly accuracy, a housing formed by efficiently assembling housing units, and a molding apparatus including the housing. [Means for solving the problem]

[0008] A housing unit according to a first aspect of the present invention comprises: A housing unit constituting a housing, The joints with other housing units are equipped with joining plates that improve the assembly accuracy of the housing. The joining plate has a cutting surface that joins with the other housing unit.

[0009] Since the housing unit includes a joining plate having a machined joining surface, the housing unit itself has high horizontal and vertical accuracy, so there is no need to adjust the horizontal and vertical accuracy between other housing units. This allows the housing to be assembled efficiently.

[0010] The joining plate is attached to a part of the joining portion, This may also be the case.

[0011] By attaching it to a part of the joint, the area of ​​the joint surface that needs to be machined is reduced, which not only reduces costs but also shortens the work time.

[0012] The joining surfaces are subjected to cutting processing to improve the assembly accuracy of any one of parallelism, squareness, flatness, or arithmetic mean roughness. This may also be the case.

[0013] By specifying the precision of the geometric intersection of the joint surfaces at the design stage, it is possible to provide a housing unit with appropriate horizontal precision and vertical precision.

[0014] A housing according to a second aspect of the present invention comprises: A housing assembled from housing units, a bottom housing unit that forms the bottom surface of the housing; a side housing unit that forms a side surface of the housing; and a work head for processing the workpiece.

[0015] By assembling the housing using a bottom housing unit and a side housing unit with high assembly precision, the completion precision of the workpiece processed by the working head can be improved.

[0016] a mounting table on which the workpiece is placed; and a lifting means attached to the side housing for lifting and lowering the table, the lifting means includes a support plate for supporting the mounting table, and a joining plate is attached to a joining surface between the support plate and the mounting table; This may also be the case.

[0017] When the workpiece placed on the table is moved up and down by the lifting means for processing, the workpiece is processed with appropriate horizontal and vertical accuracy, thereby improving the accuracy of the completed workpiece.

[0018] A modeling apparatus according to a third aspect of the present invention comprises: Equipped with a housing, The work head processes the workpiece and forms a shaped object.

[0019] Using a molding device with high assembly accuracy, it is possible to create objects with high completion accuracy. [Effects of the Invention]

[0020] According to the present invention, it is possible to provide a housing unit with high assembly accuracy, a housing formed by efficiently assembling housing units, and a molding apparatus including the housing. [Brief explanation of the drawings]

[0021] [Figure 1] 1A and 1B are diagrams illustrating the concept of the present invention, in which (a) is an external view of the housing, (b) is an external view of the bottom unit, and (c) is an external view of the side unit. [Figure 2] 1 is an external view of a molding apparatus according to an embodiment of the present invention. [Figure 3] 1 is an external view of a bottom housing unit and an upper pillar unit of a molding apparatus according to an embodiment of the present invention; [Figure 4] FIG. 2 is an external view of a pair of side housing units. [Figure 5] FIG. 2 is an external view showing the upper housing unit. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0022] (Embodiment 1) A housing unit and a housing according to an embodiment of the present invention will be described with reference to the drawings. First, the concept of the present invention will be explained using a schematic housing and housing unit, and then the specific contents of the housing and housing unit will be explained using a modeling apparatus as an example.

[0023] (Concept of the enclosure and enclosure unit) The housing according to the present invention is assembled by combining multiple housing units. When manufacturing a housing by combining housing units, it is necessary to maintain horizontal and vertical accuracy between each housing unit. If the housing units are assembled without maintaining horizontal and vertical accuracy between each housing unit, the strength of the housing will be weakened. Furthermore, if distortion occurs in the housing, the processing accuracy of the workpieces when processing them within the housing will decrease, leading to a decrease in the quality of the processed workpieces. The present invention provides a housing with high horizontal and vertical accuracy by simply assembling housing units with high horizontal and vertical accuracy at the assembly site. To improve the assembly accuracy of the housing, the present invention is characterized in that a joining plate that improves assembly accuracy is attached to the joining surface of another housing unit. The joining surface of the joining plate is machined to have geometric intersections such as flatness, parallelism, and squareness, and arithmetic surface roughness.

[0024] "Flatness" is a numerical value that indicates the smoothness (uniformity) of a plane, and is the degree to which the flat portion of a part fits between two parallel surfaces without protruding. "Parallelism" is a numerical value that indicates how parallel two or more planes or lines are. It refers to the degree of deviation of a linear or planar shape that should be parallel from a geometric line or geometric plane that is parallel to a reference datum line or datum plane. "Squareness" refers to the degree of deviation of a linear or planar shape that should be perpendicular from a geometric line or geometric plane that is perpendicular to a reference datum line or datum plane. "Arithmetic surface roughness" is an index that indicates surface roughness and is expressed as Ra. To achieve the specified flatness, parallelism, squareness, and arithmetic surface roughness, the joining surfaces of joining plates are cut using a cutting machine.

[0025] Fig. 1 is a diagram illustrating the concept of the present invention. As shown in Fig. 1(a), a housing 1 is manufactured by combining multiple housing units. The multiple housing units include a bottom housing unit 2 that forms the bottom of the housing 1, a pair of side housing units 3, 3 that form the sides of the housing 1, and upper pillar units 4, 4 that connect the pair of side housing units 3, 3. The bottom housing unit 2 and the side housing unit 3 are each formed in a rectangular shape.

[0026] As shown in FIG. 1(b), four joining plates 2a are attached to the four corners of the top surface of the bottom housing unit 2, and face the joining surfaces of the bottom surface of the side housing unit 3. Four joining plates 2b are attached to the four corners of the bottom surface of the bottom housing unit 2, and face the installation surface of the housing 1. In addition to the joining plates 2a and 2b, joining plates may be attached to locations where joining to other housing units is expected.

[0027] As shown in FIG. 1(c), four joining plates 3a are attached to the four corners of one side of the side housing unit 3, and the upper two joining plates 3a face the joining surfaces of a pair of upper pillar units 4, 4. The lower two joining plates 3a face another unit (not shown). Two joining plates 3b are attached to the underside of the side housing unit 3. The two joining plates 3b face the joining plates 2a of the bottom housing unit 2. Furthermore, although not shown, joining plates that face the upper joining plates 3a, 3a of the side housing unit 3 are attached to both ends of the upper pillar unit 4. In addition to the joining plates 3a, 3b, joining plates may be attached to locations where joining to other housing units is expected.

[0028] The joining surfaces of these joining plates 2a, 2b, 3a, and 3b are cut using a cutting machine so that they have the specified flatness, parallelism, squareness, and arithmetic surface roughness. In this way, the bottom housing unit 2, side housing unit 3, and upper column unit 4, to which joining plates with machined joining surfaces are attached, each independently satisfy horizontal accuracy and vertical accuracy. Furthermore, although the joining plates described here are attached in a predetermined number at predetermined positions on the joining surfaces, the attachment positions may be on part or the entire joining surface, and the number of plates is not limited.

[0029] Because each of the housing units, the bottom housing unit 2, the side housing unit 3, and the upper pillar unit 4, has high assembly precision, it is possible to complete the housing 1 with high assembly precision simply by assembling these housing units at the assembly site without adjusting the assembly precision. Furthermore, because the bottom housing unit 2, the side housing unit 3, and the upper pillar unit 4 each have high horizontal precision and vertical precision on their own, each housing unit can also be assembled with housing units other than the housing units described here, improving the efficiency of the assembly work.

[0030] (Configuration of the molding device) The housing according to this embodiment will be described using a housing used in a modeling device as an example. The modeling device is a device (3D printer) that models three-dimensional objects using additive manufacturing. Thermoplastic resin is used as the modeling material, and the object is modeled by stacking layers of thermoplastic resin. The modeling device used in this embodiment uses fused deposition modeling (FDM) and uses pellets made of thermoplastic resin.

[0031] In the following description, the X direction is defined as the "left-right direction," the Y direction is defined as the "front-rear direction," and the Z direction perpendicular to the X and Y directions is defined as the "up-down direction," based on the X, Y, and Z axes in Figure 2.

[0032] FIG. 2 shows an external view of the modeling apparatus 100. The modeling apparatus 100 is formed by assembling multiple housing units. The modeling apparatus 100 includes a bottom housing unit 10, a pair of side housing units 20, a pair of upper pillar units 30 connecting the pair of side housing units 20, an upper housing unit 40 equipped with a first print head 60 and a second print head 61 as work heads, and a modeling table 50 on which a model is placed. The first print head 60 and the second print head 61 melt pellets made of thermoplastic resin, which is a modeling material, and eject them toward the modeling table 50. The bottom housing unit 10, the side housing unit 20, the upper pillar units 30, the upper housing unit 40, and the modeling table 50 are housing units that form a housing known as the modeling apparatus 100.

[0033] The bottom casing unit 10 forms the bottom surface of the modeling apparatus 100, and is formed by assembling and welding together a plurality of iron pillars. The other casing units of the modeling apparatus 100 are also formed by welding together iron pillars in a similar manner. As shown in FIG. 3 , the bottom casing unit 10 includes a first frame portion 11 having a rectangular outline formed by connecting four pillars, a pair of columnar first support members 12 arranged inside the first frame portion 11, a plurality of columnar second support members 13 arranged between the pair of first support members 12, a bottom plate 14 that is the bottom surface of the bottom casing unit 10, and a reinforcing member 15 attached to the back surface of the bottom plate 14.

[0034] The first frame portion 11 is assembled by combining a pair of short-side pillar members 11a that form the short sides of a rectangle and are arranged opposite each other in the left-right direction of Figure 3, and a pair of long-side pillar members 11b that form the long sides of a rectangle and are arranged opposite each other in the front-to-back direction of Figure 3.

[0035] A pair of first support members 12 are arranged parallel to a pair of long-side pillars 11b, and a modeling table 50 is placed inside. A plurality of second support members 13 are arranged parallel to the short-side pillars 11a inside the pair of first support members 12, reinforcing the structural strength of the bottom housing unit 10. Reinforcing members 15 are attached to the back surface of the bottom plate 14 of the bottom housing unit 10, reinforcing the structural strength of the bottom housing unit 10. Installation members 16, which are casters that come into contact with the installation surface, are attached to the four corners of the bottom plate 14 of the bottom housing unit 10.

[0036] 2, the pair of side housing units 20 are installed on the upper surface of the bottom housing unit 10 and form the side surfaces of the modeling apparatus 100. As shown in FIG. 4, each of the pair of side housing units 20 includes a bottom pillar 21, a side pillar 22, a lifting mechanism 200, and a lifting mechanism support pillar 23.

[0037] The pair of bottom pillars 21 are pillars extending in the front-rear direction and are disposed at the bottom of the modeling apparatus 100, facing each other in the left-right direction. The pair of bottom pillars 21 sandwich a pair of short-side pillars 11a of the bottom housing unit 10 from the left and right. Each side pillar 22 includes a pair of pillar units 22a, 22b, which are disposed facing each other in the front-rear direction. The pair of pillar units 22a, 22b are attached to the front-rear end portions of each bottom pillar 21, standing upright. The side housing unit 20 further includes a pair of lifting mechanism support pillars 23, which are disposed facing each other in the left-right direction and are attached to the inside of the pair of side pillars 22, 22, to support the lifting mechanism 200. Each lifting mechanism support pillar 23 extends in the front-rear direction and includes a pair of pillar units 23a, 23b facing each other in the up-down direction, and the lifting mechanism 200 is attached to the center of the pillar units 23a, 23b.

[0038] The pair of lifting mechanisms 200 raise and lower the modeling table 50. Each lifting mechanism 200 includes a support plate 201 that supports one end of the modeling table 50, a lead screw 202 rotatably held by the support plate 201, and a motor 203 that rotates the lead screw 202. The two lifting mechanisms 200 can be driven independently. Each lifting mechanism 200 further includes a guide mechanism 205, and each guide mechanism 205 includes a guide rail 206 and a guide block 207 that engages with the guide rail 206. When the motor 203 is driven and the lead screw 202 rotates, the modeling table 50, which is attached to the guide block 207 of the guide mechanism 205, is guided by the guide rail 206 and moves up and down.

[0039] 2 and 3, the pair of upper pillar units 30 extend in the left-right direction and are arranged opposite each other in the front-rear direction above the upper pillar unit 23a of the lifting mechanism support pillar 23. The pair of upper pillar units 30 connect the upper portions of the side pillars 22 of the pair of side housing units 20.

[0040] As shown in FIG. 5, the upper housing unit 40 includes a second frame portion 41 and a print head drive mechanism 400 disposed on the upper surface of the second frame portion 41. The second frame portion 41 is rectangular and assembled by welding a pair of short-side pillars 41a, which form the short sides of the rectangle and are arranged opposite each other in the left-right direction of FIG. 5, and a pair of long-side pillars 41b, which form the long sides of the rectangle and are arranged opposite each other in the front-rear direction of FIG. 5. Of the long-side pillars 41b, the front long-side pillar 41b is composed of two pillars 41bf-1 and 41bf-2 arranged in parallel, with pillar 41bf-1 being disposed in front. The rear long-side pillar 41b is composed of two pillars 41bb-1 and 41bb-2 arranged in parallel, with pillar 41bb-1 being disposed in front.

[0041] The print head drive mechanism 400 includes a first print head drive mechanism 410 that drives the first print head 60 shown in FIG. 2 and a second print head drive mechanism 420 that drives the second print head 61. The first print head 60 is moved in the front-to-back and left-to-right directions by the first print head drive mechanism 410, as indicated by the solid arrows in FIGS. 2 and 5. The second print head 61 is moved in the front-to-back and left-to-right directions by the second print head drive mechanism 420, as indicated by the dotted arrows in FIGS. 2 and 5. In this embodiment, the modeling apparatus 100 is a dual-head modeling apparatus equipped with two print heads, but a single print head is also acceptable.

[0042] 5, the first print head drive mechanism 410 includes X-direction movement mechanisms 411a and 411b that move the first print head 60 in the left-right direction, and a Y-direction movement mechanism 412 that moves the first print head 60 in the front-back direction. The X-direction movement mechanism 411a is installed on pillar 41bf-1, and the X-direction movement mechanism 411b is installed on pillar 41bb-1.

[0043] The second print head drive mechanism 420 includes X-direction movement mechanisms 421a and 421b that move the second print head 61 in the left-right direction, and a Y-direction movement mechanism 422 that moves the second print head 61 in the front-back direction. The X-direction movement mechanism 421a is installed on pillar 41bf-2, and the X-direction movement mechanism 421b is installed on pillar 41bb-2.

[0044] The X-direction movement mechanism 411a of the first print head drive mechanism 410 includes two pulleys 413a and 413b mounted on a pillar 41bf-1, a belt 414 stretched between the two pulleys 413a and 413b, and a motor (not shown) for rotating the pulleys 413a and 413b. A portion of the belt 414 is fixed to the first print head 60. A guide rail 415 is attached to the pillar 41bf-1 below the belt 414. When the motor is driven, the belt 414 moves, and the first print head 60 moves left and right, guided by a guide block (not shown) attached to the guide rail 415. The X-direction movement mechanism 411b mounted on a pillar 41bb-1 also has a similar structure.

[0045] The Y-direction movement mechanism 412 of the first print head drive mechanism 410 includes a suspension frame 416 and is installed above the short-side pillar 41a, stretching between pillars 41bf-1 and 41bb-1. The Y-direction movement mechanism 412 includes two pulleys (not shown) and a belt 417 stretched between the two pulleys. The belt 417 is connected to the first print head 60. Each of the two pulleys is supported by the suspension frame 416 at both ends so that the pulleys can rotate about the vertical axis. A pair of guide rails 418a and 418b are installed on either side of the belt 417. The rotation of the two pulleys moves the belt 417, and the first print head 60 is guided by the guide rails 418a and 418b and moves in the front-to-rear direction.

[0046] 5, the second print head drive mechanism 420 includes X-direction movement mechanisms 421a and 421b that move the second print head 61 in the left-right direction, and a Y-direction movement mechanism 422 that moves the second print head 61 in the front-rear direction. The X-direction movement mechanism 421a is installed on pillar 41bf-2, and the X-direction movement mechanism 421b is installed on pillar 41bb-2.

[0047] The X-direction movement mechanism 421a of the second print head drive mechanism 420 includes two pulleys 423a and 423b mounted on a pillar 41bf-2, a belt 424 stretched between the two pulleys 423a and 423b, and a motor (not shown) for rotating the pulleys 423a and 423b. A portion of the belt 424 is indirectly fixed to the second print head 61. A guide rail 425 is attached to the pillar 41bf-2 below the belt 424. When the motor is driven, the belt 424 moves, and the second print head 61 moves left and right, guided by a guide block (not shown) attached to the guide rail 425. The X-direction movement mechanism 421b installed on the pillar 41bb-2 has a similar structure.

[0048] The Y-direction movement mechanism 422 of the second print head drive mechanism 420 includes a suspension frame 426, which is installed above the short-side post 41a, spanning between post 41bf-2 and post 41bb-2. The Y-direction movement mechanism 422 has the same structure as the Y-direction movement mechanism 412, so a detailed description will be omitted. The second print head 61 is moved in the front-to-rear direction by the Y-direction movement mechanism 422.

[0049] The modeling table 50 is a mounting table on which a model is placed, and as shown in FIG. 6, includes a base 51 and a table 52 that is placed on the base 51 and on which the model is placed. The base 51 is formed of a rectangular frame, and the inside of the frame is hollow. The hollow reduces the load when the modeling table 50 is raised and lowered. The base 51 includes protruding plates 53 that protrude outward from the ends of the opposing short sides. The protruding plates 53 are attached to the support plate 201 of the side housing unit 20. The protruding plates 53 are formed with a recess 53a through which the lead screw 202 of the lifting mechanism 200 passes, and a through-hole 53b through which the guide rail 206 passes.

[0050] The table 52 is a plate-like member, and is positioned by a positioning pin (not shown) attached to the inside of the frame of the base 51, and is placed on the base 51. The table 52 is held on the base 51 without being fastened to the base 51 by a fastening member such as a screw.

[0051] 2, the molding apparatus 100 is provided with a plate-shaped reinforcing member 70 on the outside of the molding apparatus 100 in order to reinforce the joint between the bottom case unit 10 and the side case unit 20. Furthermore, the molding apparatus 100 is provided with a plate-shaped reinforcing member 71 on the outside of the molding apparatus 100 in order to reinforce the joint between the side case unit 20 and the upper column unit 30.

[0052] (Installation position of the joint plate and horizontal and vertical accuracy) In this embodiment, each housing unit is characterized by having a joining plate with a machined joining surface welded to the joint between the housing units. The mounting position of the joining plate in each housing unit and the method for ensuring horizontal and vertical accuracy will be described for each housing unit.

[0053] <Bottom housing unit> As shown in FIG. 3, two bottom joining plates 17a are attached by welding to the top surfaces of each of a pair of short-side pillars 11a of the bottom housing unit 10. The two bottom joining plates 17a are attached to the joining surfaces with the lower pillar unit 23b of the side housing unit 20, which is placed on the top surface of the bottom housing unit 10. The short-side pillars 11a and pillar unit 23b are in contact with each other at continuous joining surfaces, but the bottom joining plates 17a do not need to be attached to the entire joining surface. In this embodiment, the two bottom joining plates 17a are attached at positions equidistant from the center positions of the short-side pillars 11a.

[0054] Two bottom joint plates 17b, 17b are attached to each of the longitudinally opposing side surfaces of a pair of long side pillars 11b of the bottom housing unit 10. The bottom joint plates 17b are attached to the joint surfaces with the bottom pillars 21 of the side housing unit 20 placed on the top surface of the bottom housing unit 10. In addition, a bottom joint plate 17c is attached to the joint surface with the installation member 16 on the back surface of the bottom plate 14.

[0055] Joint surfaces 17aa of the four bottom joining plates 17a are cut, for example, with a parallelism of 0.05 and a flatness of 0.05 relative to the bottom plate 14, which serves as the reference surface of the bottom housing unit 10. Joint surfaces 17bb of the four bottom joining plates 17b are cut, for example, with a perpendicularity of 0.1 and a flatness of 0.05. Joint surface 17cc of bottom joining plate 17c is cut, for example, with a parallelism of 0.05 and a flatness of 0.05. By cutting the bottom joining plates 17a, 17b, and 17c, the bottom housing unit 10 can have appropriate horizontal and vertical accuracy as a single housing unit.

[0056] <Side chassis unit> As shown in FIG. 4, four side joint plates 24a are attached to the joint surface of the upper part of the side columns 22 with the upper column unit 30. Two side joint plates 24b are attached to the upper surface of the upper column unit 23a of each lifting mechanism support column 23, on the surface that joins with the upper housing unit 40. The column unit 23a and the short-side column 41a of the upper housing unit 40 come into contact with each other at a continuous joint surface, but the side joint plates 24b do not need to be attached to the entire joint surface. In this embodiment, the two side joint plates 24b are attached at positions equidistant from the center position of the column unit 23a. A side joint plate 24c is attached to the joint surface of the support plate 201 with the modeling table 50. Although not shown, a joining plate is attached to the back surface of the lower pillar unit 23b in a position facing the bottom joining plate 17a of the bottom housing unit 10, and a joining plate is also attached in a position facing the bottom joining plate 17b. In addition, side joining plates 24d and 24e are attached to the side surfaces of the side pillar 22 in anticipation of joining to other housing units.

[0057] The joining surfaces 24aa of the four side joining plates 24a are cut with, for example, a perpendicularity of 0.1 and a flatness of 0.05. The joining surfaces 24bb of the two side joining plates 24b are cut with, for example, a parallelism of 0.05 and a flatness of 0.05 relative to the bottom surface, which serves as the reference surface of the side housing unit 20. The joining surface 24cc of the side joining plate 24c is cut with, for example, a parallelism of 0.05 and a flatness of 0.05 relative to the bottom surface, which serves as the reference surface of the side housing unit 20. The joining surfaces 24dd and 24ee of the side joining plates 24d and 24e are cut with, for example, a perpendicularity of 0.1 and a flatness of 0.05. By performing this cutting process, the side housing unit 20 can have appropriate horizontal and vertical accuracy as a single housing unit.

[0058] A side joining plate 24c is attached to the upper surface of the support plate 201 of the lifting mechanism 200 in a position opposite the protruding plate 53 of the modeling table 50, and a joining plate (not shown) that joins to the side joining plate 24c is attached to the back surface of the protruding plate 53.

[0059] <Upper column unit> As shown in FIG. 3, an upper joining plate 31a is attached to the right end face of each upper column unit 30, and an upper joining plate 31b is attached to the left end face. The upper joining plate 31a is joined to the side joining plate 24a of the right-side side column 22, and the upper joining plate 31b is joined to the side joining plate 24a of the left-side side column 22. The joining surfaces 31aa and 31bb of the upper joining plates 31a and 31b are cut to a flatness of 0.05 and a squareness of 0.1, for example. By performing this cutting process, the upper column unit 30 can have appropriate horizontal and vertical accuracy as a single housing unit.

[0060] <Upper housing unit> Although not shown in FIG. 5 , in the upper housing unit 40, joint plates are attached to the top surfaces of the pillars 41bf-1, 41bf-2, and pillars 41bb-1, 41bb-2. The joint plates are welded to the joint surfaces of the pillars 41bf-1, 41bf-2, and pillars 41bb-1, 41bb-2 with the guide rails 415, 425. Joint plates are also attached to the sides of the guide rails 415, 425. Furthermore, joint plates are attached between the guide rails 418a, 418b and the suspension frame 416, respectively. An upper joint plate 42 is attached to the back surface of the short-side pillar 41a in a position opposite the side joint plate 24b of the side housing unit 20. These joint plates are cut, for example, with a flatness of 0.05 and a parallelism of 0.05. By carrying out such cutting processing, the upper housing unit 40 can be provided with high horizontal precision and vertical precision as a single housing unit.

[0061] The joint surfaces of the joint plates attached to the bottom case unit 10, side case unit 20, upper pillar unit 30, and upper case unit 40 are all cut to have an arithmetic mean roughness Ra of 1.6 or less.

[0062] By combining all the housing units, the joining plates attached to the bottom housing unit 10, side housing unit 20, upper pillar unit 30, and upper housing unit 40 come into contact with each other without any gaps, thereby enabling the assembly of a molding device 100 with high horizontal and vertical accuracy.

[0063] (Effects of this embodiment) According to the invention of this embodiment, bottom joining plates 17a, 17b, and 17c with machined joining surfaces are attached to the bottom housing unit 10, so that the bottom housing unit 10 alone can provide a housing unit that satisfies horizontal and vertical accuracy.

[0064] Since side joint plates 24a, 24b, 24c, 24d, and 24e with machined joint surfaces are attached to the side housing unit 20, the side housing unit 20 alone can provide a housing unit that satisfies horizontal precision and vertical precision.

[0065] Since the upper joint plates 31a, 31b with processed joint surfaces are attached to the upper pillar unit 30, the upper pillar unit 30 alone can provide a housing unit that satisfies horizontal precision and vertical precision.

[0066] In the upper housing unit 40, joining plates with machined joining surfaces are attached to the pillar members 41bf-1, 41bf-2 and pillar members 41bb-1, 41bb-2, and an upper joining plate 42 with machined joining surfaces is attached to the short-side pillar member 41a, so that the upper housing unit 40 alone can provide a housing unit that satisfies horizontal accuracy and vertical accuracy.

[0067] The bottom housing unit 10, side housing unit 20, upper pillar unit 30, and upper housing unit 40 each satisfy horizontal and vertical accuracy on their own, so by assembling these housing units, a molding device 100 that satisfies horizontal and vertical accuracy can be easily assembled at the assembly site.

[0068] The bottom surface housing unit 10, the side surface housing unit 20, the upper pillar unit 30, and the upper surface housing unit 40 each satisfy horizontal precision and vertical precision individually, and can therefore be easily combined at the assembly site with other housing units that satisfy horizontal precision and vertical precision.

[0069] By placing a pair of side housing units 20 on the bottom housing unit 10 and then placing the upper housing unit 40 on top of those, the upper housing unit 40 is assembled in a state where horizontal precision and vertical precision are satisfied. The guide rails 415, 418a, 418b, and 425 are attached to the upper housing unit 40 via machined joining plates. Therefore, the first print head 60 and the second print head 61, which move while being guided by the guide rails 415, 418a, 418b, and 425, can move in a state where horizontal precision and vertical precision are satisfied, and a highly accurate object can be formed.

[0070] A pair of side surface housing units 20 are placed on the bottom surface housing unit 10, and the protruding plates 53 of the modeling table 50 are placed on the side joint plates 24c of the lifting mechanisms 200 of the pair of side surface housing units 20. Therefore, the modeling table 50 can be raised and lowered while satisfying horizontal and vertical accuracy, allowing for the formation of a highly accurate modeled object.

[0071] The present invention is not limited to the above-described embodiment, and various modifications and applications are possible. In the above-described embodiment, the modeling apparatus 100 is described as a fused deposition modeling method, but the present invention can also be applied to modeling apparatuses of other types.

[0072] In the above embodiment, the modeling apparatus 100 has been described as an example. However, the present invention is not limited to the modeling apparatus 100, and can be applied to various mechanical devices equipped with housings, such as processing devices and cutting devices.

[0073] In the above embodiment, it was explained that the two bottom joining plates 17a are attached at positions equidistant from the center position of the short side column material 11a, but the bottom joining plates 17a may be attached at any position on the short side column material 11a, and there may be two or more.

[0074] In the above embodiment, the two side joint plates 24b are described as being attached at positions equidistant from the center position of the pillar unit 23a, but the side joint plates 24b may be attached at any position on the pillar unit 23a, and there may be two or more of them.

[0075] In the above embodiment, plate-shaped reinforcing members are used as the reinforcing members 70 and 71, but instead of plate-shaped members, braces that connect two members with lines may also be used.

[0076] In the above embodiment, the flatness, parallelism, squareness, and arithmetic surface roughness of each housing unit are described by specifying specific numerical values, but the values ​​are not limited to the described numerical values, and the designer can freely set numerical values ​​that can maintain the desired horizontal accuracy and vertical accuracy.

[0077] In the above embodiment, the first print head 60 and the second print head 61 have been described as examples of work heads, but the present invention can be applied to various other work heads, such as laser heads for laser processing.

[0078] The features described in the above-described embodiments and modifications can be combined in any manner unless they are inconsistent. [Industrial Applicability]

[0079] The present invention can be used in a housing unit, a housing formed by assembling housing units, and a modeling apparatus having a housing. [Explanation of symbols]

[0080] 1 chassis 2, 10 Bottom housing unit 2a, 2b, 3a, 3b joint plate 3, 20 Side housing unit 4, 30 Upper column unit 40 Upper housing unit 11 First frame section 41 Second frame section 11a, 41a short side pillars 11b, 41b Long side column material 12 first support member 13 Second support member 14 Bottom plate 15 Reinforcement member 16 Installation materials 17a, 17b, 17c Bottom joint plate 24a, 24b, 24c, 24d, 24e Side joint plates 31a, 31b, 42 Upper joint plate 17aa, 17bb, 17cc, 24aa, 24bb, 24cc, 24dd, 24ee, 31aa, 31bb joint surface 21 Bottom pillar material 22 Side pillar 22a, 22b, 23a, 23b Pillar unit 23 Lifting mechanism support column material 41bf-1, 41bf-2, 41bb-1, 41bb-2 Pillar material 50 Modeling stand 51 Foundation 52 tables 53 Protruding plate 53a Recess 53b Through hole 60 First Print Head 61 Second print head 100 Modeling equipment 200 Lifting mechanism 201 Support plate 202 Lead screw 203 Motor 205 Guide mechanism 206, 415, 418a, 418b, 425 guide rails 207 Guide Block 400 Printhead drive mechanism 410 First Print Head Drive Mechanism 411a, 411b, 421a, 421b X direction movement mechanism 412, 422 Y direction movement mechanism 413a, 413b, 423a, 423b pulleys 414, 417, 424 Belts 416, 426 suspension frame 420 Second print head drive mechanism

Claims

1. A housing unit constituting a housing, The joints with other housing units are equipped with joining plates that improve the assembly accuracy of the housing. the joining plate has a cutting-processed joining surface with the other housing unit; Housing unit.

2. The joining plate is attached to a part of the joining portion, The housing unit according to claim 1 .

3. The joining surfaces are subjected to cutting processing to improve assembly accuracy of any one of parallelism, squareness, flatness, or arithmetic mean roughness. The housing unit according to claim 1 .

4. A housing assembled from housing units according to any one of claims 1 to 3, a bottom housing unit that forms the bottom surface of the housing; a side housing unit that forms a side surface of the housing; a work head for processing the workpiece; Case.

5. a mounting table on which the workpiece is placed; and a lifting means attached to the side housing for lifting and lowering the table, the lifting means includes a support plate for supporting the mounting table, and a joining plate is attached to a joining surface between the support plate and the mounting table; The housing of claim 4.

6. A housing according to claim 4, The work head for processing the workpiece forms a molded object. Modeling equipment.

Images