Machining machine and slide mechanism

Abstract

The processing machine is provided with: a cover body (21) provided with an opening portion, which divides a processing area (110); a first door (31) capable of sliding along the horizontal direction between a first position (J) of opening the opening portion and a second position (K) of blocking the opening portion; a second door (41) configured to overlap the first door (31) from the inside of the processing area (110) and capable of sliding along the horizontal direction between the first position (J) of opening the opening portion and a third position (L) located on the opposite side of the first position (J) relative to the second position (K), at which the second door (41) blocks the opening portion together with the first door (31); and a rail member (61) including a groove portion (62) engaged with the first door (31) and an abutting portion (63) provided on the second door (41) and configured to enable the second door (41) to slide relative to the first door (31) in the horizontal direction. The groove portion (62) and the abutting portion (63) are configured on the outside of the processing area (110).

Description

Technical Field

[0001] The invention relates to a processing machine and a sliding mechanism. Background Art

[0002] For example, Japanese Patent Application Laid-Open No. 2013-193197 (Patent Document 1) discloses a machine tool equipped with an opening and closing door. The opening and closing door is supported by guide rails and door rollers that slide on the guide rails so as to be slidable left and right.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2013-193197 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] As disclosed in Patent Document 1, a processing machine having a door slidably supported by a track member is known. In such a processing machine, due to the layout of the track member, the track member may be exposed to foreign matter such as chips and cutting oil generated during workpiece processing within the processing area. In this case, it is difficult to slide the door smoothly.

[0008] In addition, in the machine tool disclosed in above-mentioned patent document 1, guide rail is arranged on the frame (base member) that supports the opening and closing door to be slidable. In this case, various problems such as the space for arranging the guide rail as the longitudinal body may be generated and need to be ensured in the base member.

[0009] Therefore, an object of the present invention is to provide a processing machine that solves the above-mentioned problem and enables a door to slide smoothly. In addition, another object of the present invention is to provide a sliding mechanism that can eliminate various problems that may arise from providing a track member on a base member that supports a movable body in a slidable manner.

[0010] Solutions for solving problems

[0011] The processing machine according to the present invention comprises: a cover having an opening for defining a processing area; a first door capable of sliding in a predetermined direction between a first position for opening the opening and a second position for blocking the opening; a second door disposed from the inside of the processing area so as to overlap with the first door and capable of sliding in a predetermined direction between the first position for opening the opening and a third position, the third position being located on the opposite side of the first position relative to the second position, in which the second door and the first door block the opening; and a rail member including an engaging portion for engaging with the first door, the rail member being disposed on the second door and capable of sliding the second door relative to the first door in the predetermined direction. The engaging portion is disposed outside the processing area.

[0012] According to the processing machine thus constructed, the engaging portion of the track member engaging with the first door is arranged outside the processing area, thereby preventing the engaging portion from being exposed to foreign matter such as chips or cutting oil generated during workpiece processing within the processing area. As a result, the engaging portion remains clean, thereby enabling the second door to slide smoothly relative to the first door.

[0013] Furthermore, it is preferable that the second door includes an outer surface facing the first door when the first door and the second door are positioned at the first position. The rail member is provided on the second door so as not to protrude from the outer surface toward the first door.

[0014] According to the processing machine configured in this manner, the first door and the second door can be provided closer to each other, thereby improving the sealing performance of the processing area.

[0015] Furthermore, it is preferred that the engaging portion include an open end portion that is disposed opposite the first door when the first door is positioned in the second position and the second door is positioned in the third position, and is open toward a direction along the predetermined direction. The second door further includes: a door body portion on which the track member is disposed; and a cover member mounted on the door body portion to close the opening formed by the open end portion.

[0016] According to the processing machine constructed in this manner, when assembling the processing machine, the first door can be engaged with the engaging portion via the opening end. Moreover, by attaching the cover member to the door body, the opening formed by the opening end is blocked, thereby preventing foreign matter such as chips or cutting oil from entering the engaging portion.

[0017] Furthermore, it is preferable that the cover member includes a labyrinth portion extending toward the first door and forming a labyrinth structure together with the first door.

[0018] According to the processing machine configured in this manner, the labyrinth portion for providing the labyrinth structure is integrally provided on the cover member that closes the opening formed by the opening end portion, thereby reducing the number of parts.

[0019] In addition, it is preferred that the predetermined direction is a horizontal direction. The opening portion includes: a front opening portion, which is arranged in front of the machine in the processing area; and an upper opening portion, which is connected to the front opening portion and is arranged above the processing area. The second door includes a front door portion that blocks the front opening portion when positioned at the third position and an upper door portion that blocks the upper opening portion. A track member is provided on the front door portion of the front door portion and the upper door portion.

[0020] According to the processing machine thus constructed, the front door portion blocks the front opening portion in front of the machine disposed in the processing area, so that foreign matter such as chips and cutting oil tends to fly toward the front door portion. Therefore, it is possible to more effectively prevent the track member from being exposed to foreign matter such as chips and cutting oil due to the track member being disposed in the front door portion of the front door portion and the upper door portion.

[0021] The sliding mechanism according to the present invention includes: a base member; a movable body slidable in a predetermined direction; and a rail member provided on the movable body and engaged with the base member so that the movable body can slide in the predetermined direction relative to the base member.

[0022] According to the sliding mechanism constructed in this way, the rail member is provided on the moving body, thereby eliminating the need to provide the rail member on the base member.

[0023] Effects of the Invention

[0024] As described above, according to the present invention, a processing machine that can make a door slide smoothly can be provided. In addition, according to the present invention, a sliding mechanism that can eliminate various problems that may arise due to the track component being arranged on the base component that supports the mobile body to be slidable can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a perspective view showing a processing machine in an embodiment of the present invention.

[0026] Figure 2 It is aimed at Figure 1 A perspective view of the processing machine in FIG. 1 showing the first and second doors in an open state.

[0027] Figure 3 It is aimed at Figure 1 The processing machine in FIG is a perspective view showing a closed state of the first door and the second door.

[0028] Figure 4 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of the IV-IV line.

[0029] Figure 5 Yes Figure 4 A stereoscopic view of the traveling wheel provided to the first door and the mounting structure of the traveling wheel.

[0030] Figure 6 Yes Figure 4 Another stereoscopic view of the traveling wheel set to the first door and the mounting structure of the traveling wheel.

[0031] Figure 7 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of the VII-VII line.

[0032] Figure 8 yes Figure 7 Exploded assembly view of door 2 shown in .

[0033] Figure 9 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of the IX-IX line.

[0034] Figure 10 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of XX line.

[0035] Figure 11 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of the XI-XI line. DETAILED DESCRIPTION

[0036] The embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings referred to below, the same or corresponding components are denoted by the same reference numerals.

[0037] Figure 1 It is a perspective view showing a processing machine in an embodiment of the present invention. Figure 2 It is aimed at Figure 1 A perspective view of the processing machine in FIG. 1 showing the first and second doors in an open state. Figure 3 It is aimed at Figure 1 The processing machine in FIG is a perspective view showing a closed state of the first door and the second door.

[0038] Reference Figures 1 to 3 The processing machine 100 is an NC (Numerically Controlled) processing machine that automates various operations for workpiece processing through numerical control performed by a computer. The processing machine 100 is a combination machine tool having a turning function using a fixed tool and a milling function using a rotating tool.

[0039] In addition, in this specification, the axis parallel to the left-right direction (width direction) of the processing machine 100 and extending in the horizontal direction is called the "Z axis", the axis parallel to the front-back direction (depth direction) of the processing machine 100 and extending in the horizontal direction is called the "Y axis", and the axis extending in the vertical direction is called the "X axis". Figure 1 The right direction in is called "+Z axis direction", and the left direction is called "-Z axis direction". Figure 1 The front direction of the paper is called the "+Y axis direction", and the back direction is called the "-Y axis direction". Figure 1 The upward direction in the diagram is referred to as the "+X axis direction," and the downward direction is referred to as the "-X axis direction." The X axis, Y axis, and Z axis are three axes that are orthogonal to each other.

[0040] The processing machine 100 includes a housing 21. The housing 21 defines a processing area 110 and constitutes the exterior appearance of the processing machine 100. The processing area 110 is a space where a workpiece is processed and is substantially sealed to prevent foreign matter such as chips and cutting oil generated during workpiece processing from leaking outside the processing area 110.

[0041] like Figure 2 As shown, the cover 21 is provided with an opening 50. The opening 50 is an opening that connects the inside of the processing area 110 with the outside of the processing area 110. An operator can access the inside of the processing area 110 from the outside of the processing area 110 through the opening 50.

[0042] The opening 50 includes a front opening 51 and an upper opening 52. The front opening 51 is located in front of the machine (on the +Y axis side) of the processing area 110. The upper opening 52 is located above the processing area 110 (on the +X axis side). The upper opening 52 is connected to the front opening 51.

[0043] The cover body 21 includes a first door 31 , a second door 41 , a side cover 27 , and a magazine cover 26 .

[0044] The first door 31 and the second door 41 are arranged at the opening 50. The first door 31 is slidable in a predetermined direction between a first position J, which opens the opening 50, and a second position K, which blocks the opening 50. The second door 41 is arranged to overlap the first door 31 from the inside of the processing area 110. The second door 41 is slidable in a predetermined direction between the first position J, which opens the opening 50, and a third position L, which is located on the opposite side of the second position K. At the third position L, the second door 41 blocks the opening 50 together with the first door 31.

[0045] The first door 31 and the second door 41 can slide independently of each other. The first door 31 and the second door 41 can slide in the same direction. The first door 31 and the second door 41 can slide in the horizontal direction. The first door 31 and the second door 41 can slide in the Z-axis direction.

[0046] The first door 31 and the second door 41 may be manual doors that slide manually, or may be automatic doors that slide using an actuator such as a cylinder or a motor.

[0047] like Figure 1 and Figure 3As shown, when the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the opening 50 is closed. The first door 31 is positioned adjacent to the second door 41 in the +Z axis direction. The first door 31 and the second door 41, together with the inner covers arranged on the left and right sides of the machine within the processing area 110, the telescopic cover arranged inside the processing area 110 and capable of deforming in response to the movement of the tool spindle (not shown) in the X and Z axes, and the top cover arranged above the processing area 110, define the processing area 110.

[0048] The first door 31 includes a front door portion 32 and an upper door portion 33. When the first door 31 is positioned at the second position K, the front door portion 32 is closed. Figure 2 The front opening 51 shown is blocked by the upper door 33 Figure 2 The front door portion 32 has a plate shape parallel to the X-axis-Z-axis plane. A transparent window 34 (see Figure 1 The upper door portion 33 has a plate shape as a whole that is parallel to the Y-axis-Z-axis plane. The upper end portion of the front door portion 32 is connected to the front end portion (end in the +Y-axis direction) of the upper door portion 33 to form a corner portion.

[0049] The second door 41 includes a front door portion 42 and an upper door portion 43. When the second door 41 is positioned at the third position L, the front door portion 42 is closed. Figure 2 The front opening 51 shown is blocked by the upper door 43 Figure 2 The front door portion 42 has a plate shape parallel to the X-axis-Z-axis plane. A transparent window 44 (see Figure 1 The upper door portion 43 has a plate shape as a whole that is parallel to the Y-axis-Z-axis plane. The upper end portion of the front door portion 42 is connected to the front end portion (end in the +Y-axis direction) of the upper door portion 43 to form a corner portion.

[0050] The first door 31 positioned at the second position K and the second door 41 positioned at the third position L overlap with each other in the first range 310 in the Z-axis direction.

[0051] More specifically, the end of the second door 41 in the +Z-axis direction overlaps with the end of the first door 31 in the -Z-axis direction from the inside of the processing area 110. The end of the front door portion 42 of the second door 41 in the +Z-axis direction and the end of the front door portion 32 of the first door 31 in the -Z-axis direction are opposite to each other in the Y-axis direction. The end of the upper door portion 43 of the second door 41 in the +Z-axis direction and the end of the upper door portion 33 of the first door 31 in the -Z-axis direction are opposite to each other in the X-axis direction.

[0052] like Figures 1 to 3As shown, the side covers 27 and the tool magazine cover 26 are respectively provided on either side of the opening 50 in the Z-axis direction. The side cover 27 is provided adjacent to the first door 31, which is positioned at the second position K, in the +Z-axis direction. A workpiece spindle for rotating a workpiece, a tailstock for supporting the workpiece's center of rotation, and the like are housed inside the side cover 27. The tool magazine cover 26 is provided adjacent to the second door 41, which is positioned at the third position L, in the -Z-axis direction. A tool magazine, etc., for accommodating a plurality of tools for machining the workpiece, is housed inside the tool magazine cover 26.

[0053] like Figure 2 As shown, when the first door 31 and the second door 41 are positioned at the first position J, the opening 50 is in the open state. The first door 31 and the second door 41 are arranged inside the side cover 27. The processing area 110 is open to the outside of the processing area 110 through the opening 50 in the open state.

[0054] The first door 31 positioned at the first position J and the second door 41 positioned at the first position J overlap each other in the second range 320 in the Z-axis direction. The length of the second range 320 in the Z-axis direction is greater than Figure 3 The first range 310 shown has a large length in the Z-axis direction. The end portion of the first door 31 in the −Z-axis direction protrudes from the side cover 27. The end portion of the second door 41 in the −Z-axis direction protrudes from the first door 31.

[0055] Figure 4 It means along Figure 3 A cross-sectional view of the processing machine viewed along the IV-IV line in FIG. Figure 3 and Figure 4 The second door 41 has an outer surface 46 and an inner surface 47. When the second door 41 is positioned at the third position L, the outer surface 46 is located outside the processing area 110. The inner surface 47 is located behind the outer surface 46 and inside the processing area 110.

[0056] The inner surface 47 faces the -Y axis direction, and the outer surface 46 faces the +Y axis direction. When the first door 31 and the second door 41 are positioned at the first position J, the outer surface 46 faces the -Y axis direction. Figure 2 The second range 320 shown faces the first door 31. When the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the outer surface 46 is Figure 3 The first range 310 shown faces the first door 31 .

[0057] The second door 41 includes a door body 45 . When the second door 41 is positioned at the second position K, the door body 45 constitutes a main portion of the second door 41 that closes the opening 50 . The door body 45 is composed of a front door 42 and an upper door 43 .

[0058] The processing machine 100 further includes a rail member 61. The rail member 61 is provided on the second door 41. The rail member 61 is provided on the door body 45. The rail member 61 is provided on the front door 42. The rail member 61 is provided on the front door 42 of the front door 42 and the upper door 43.

[0059] The rail member 61 has a vertically long shape with the Z-axis direction being the longitudinal direction. The rail member 61 is provided at a position closer to the lower end than the upper end of the front door portion 42 in the X-axis direction.

[0060] The track member 61 is provided on the second door 41 so as not to protrude from the outer surface 46 toward the first door 31. An internal space 115 is formed between the inner surface 47 and the outer surface 46. The track member 61 is accommodated in the internal space 115. A notch portion 49 opening on the outer surface 46 is provided on the second door 41. The internal space 115 and the processing area 110 are separated from each other by the inner surface 47. The internal space 115 is connected to the outside of the processing area 110 via the notch portion 49.

[0061] The processing machine 100 has a plurality of track members 61 (61A, 61B). The track members 61A and 61B are arranged relative to each other in the vertical direction in the internal space 115. The track member 61B is arranged above the track member 61A. The track member 61A is arranged directly below the opening formed by the notch portion 49. The track member 61B is arranged directly above the opening formed by the notch portion 49.

[0062] The track member 61A is composed of a plurality of straight-line bent plate members extending in the Z-axis direction, while the track member 61B is composed of a block.

[0063] The track member 61A has a groove portion 62. The groove portion 62 is in the shape of a groove extending in the Z-axis direction. The groove portion 62 is open toward the +X-axis direction (upward). The track member 61B has a contact portion 63. The contact portion 63 is in the shape of a plane extending in the Z-axis direction. The contact portion 63 is composed of a plane facing the -X-axis direction (downward) and parallel to the YZ-axis plane.

[0064] The groove portion 62 and the contact portion 63 are arranged outside the processing area 110. The groove portion 62 and the contact portion 63 are arranged in the internal space 115. The groove portion 62 and the contact portion 63 are separated from the processing area 110 by the inner surface 47. The groove portion 62 and the contact portion 63 correspond to the "engaging portion" in the present invention.

[0065] Figure 5 and Figure 6 Yes Figure 4 A perspective view of the travel wheel installed on the first door and the mounting structure of the travel wheel. Figures 4 to 6The processing machine 100 further includes first traveling wheels 64 ( 64A, 64B) and second traveling wheels 65 .

[0066] The first running wheel 64 and the second running wheel 65 are provided on the first door 31 . The first running wheel 64 and the second running wheel 65 are provided on the front door portion 32 .

[0067] The first and second traveling wheels 64 and 65 are arranged closer to the lower end of the front door portion 32 in the X-axis direction than the upper end of the front door portion 32. The first and second traveling wheels 64 and 65 are arranged closer to the end of the first door 31 in the -Z-axis direction than the end of the first door 31 in the +Z-axis direction. Figure 3 As shown, when the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the first and second traveling wheels 64 and 65 are arranged in the first range 310. The first and second traveling wheels 64 and 65 are constituted by cam followers, for example.

[0068] The first traveling wheel 64 is provided so as to be rotatable about a rotation axis 121 extending in the X-axis direction. The first traveling wheel 64A and the first traveling wheel 64B are arranged with a gap therebetween in the Z-axis direction.

[0069] The second traveling wheel 65 is rotatable about a rotation axis 122 extending in the Y-axis direction. The second traveling wheel 65 is located above the first traveling wheel 64. The second traveling wheel 65 is located between the first traveling wheel 64A and the first traveling wheel 64B in the Z-axis direction.

[0070] The groove portion 62 and the contact portion 63 engage with the first door 31. The rail member 61 allows the second door 41 to slide relative to the first door 31.

[0071] More specifically, the first traveling wheel 64 is engaged with the groove portion 62. The first traveling wheel 64A and the first traveling wheel 64B are engaged with the groove portion 62 at positions spaced apart from each other along the Z-axis direction. The first traveling wheel 64 is engaged with the groove portion 62, thereby limiting the mutual positional relationship of the first door 31 and the second door 41 in the Y-axis direction. The second traveling wheel 65 is arranged below the abutting portion 63. The second traveling wheel 65 abuts against the abutting portion 63. The second traveling wheel 65 abuts against the abutting portion 63, thereby limiting the mutual positional relationship of the first door 31 and the second door 41 in the X-axis direction.

[0072] The first traveling wheels 64 (64A, 64B) move along the groove portion 62 while rotating about the rotation axis 121, and the second traveling wheels 65 move along the contact portion 63 while rotating about the rotation axis 122, so that the second door 41 is supported to be slidable in the Z-axis direction.

[0073] The processing machine 100 further includes a first block 66 and a second block 69. The first traveling wheel 64 and the second traveling wheel 65 are attached to the first door 31 (front door portion 32) via the first block 66 and the second block 69.

[0074] The first block 66 is mounted on the front door portion 32. The first block 66 is disposed opposite the opening formed by the cutout portion 49 in the Y-axis direction. The second block 69 is mounted on the first block 66. The second block 69 protrudes from the first block 66 in the -Y-axis direction and enters the internal space 115 through the cutout portion 49. The first and second running wheels 64, 65 are mounted on the second block 69.

[0075] The processing machine 100 further includes a frame 67 and a bolt 68. The frame 67 is attached to the front door 32. The frame 67 is disposed below the first block 66. The bolt 68 extends in the X-axis direction. The end of the bolt 68 in the +X-axis direction is fastened to the first block 66. The end of the bolt 68 in the -X-axis direction is fastened to the frame 67.

[0076] With this structure, the X-axis position (height) of the first block 66 can be changed by changing the protruding length of the bolt 68 from the frame 67. This allows the vertical positions of the first and second traveling wheels 64 and 65 to be adjusted.

[0077] According to such a structure, the groove portion 62 and the contact portion 63 of the track member 61 are arranged outside the processing area 110. Figure 3 As shown, when the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L and workpiece processing is performed in the processing area 110, the groove portion 62 and the abutment portion 63 can be prevented from being exposed to foreign matter such as chips or cutting oil generated as the workpiece is processed. As a result, the first traveling wheel 64 and the second traveling wheel 65 can rotate smoothly along the groove portion 62 and the abutment portion 63, respectively, so that the reliability of the sliding action of the second door 41 can be improved. In particular, in the present embodiment, the structure in which the groove portion 62 and the abutment portion 63 of the track member 61 are arranged on the outside of the processing area 110 is adopted in the front door portion 42 where foreign matter such as chips or cutting oil are easily scattered. Therefore, the effect of improving the reliability of the sliding action of the second door 41 can be achieved more effectively.

[0078] Furthermore, the rail member 61 is arranged so as not to protrude from the outer surface 46 of the second door 41 toward the first door 31. This configuration allows the first door 31 and the second door 41 to be positioned closer together. Therefore, when the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the airtightness of the processing area 110 can be improved. This makes it possible to more reliably prevent foreign matter such as chips and cutting oil from leaking out of the processing area 110.

[0079] The track member 61 is provided on the second door 41, which is a movable body that can slide in the Z-axis direction. According to such a structure, it is not necessary to provide the track member 61, which is a longitudinal body, on the first door 31, which is a base member that supports the second door 41 so that it can slide. Therefore, the design constraints of the first door 31 can be reduced.

[0080] Figure 7 It means along Figure 3 A cross-sectional view of the processing machine viewed in the direction of the VII-VII line. Figure 8 yes Figure 7 Exploded assembly view of door 2 shown in .

[0081] Reference Figure 7 and Figure 8 The door body 45 (front door portion 42) further includes a side surface 48. The side surface 48 faces the +Z axis direction. The end of the side surface 48 in the -Y axis direction is connected to the inner surface 47, and the end of the side surface 48 in the +Y axis direction is connected to the outer surface 46.

[0082] The groove portion 62 and the contact portion 63 have an open end portion 70. When the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the open end portion 70 is located at Figure 3 The end of the first range 310 shown. The opening end 70 is arranged opposite the first door 31 in the Y-axis direction. The opening end 70 opens in a direction along the Z-axis direction. The opening end 70 opens in the +Z-axis direction. The opening end 70 forms an opening in the side surface 48.

[0083] The second door 41 further includes a cover member 71. The cover member 71 is attached to the door main body 45. The cover member 71 is detachably mounted to the door main body 45 using bolts or the like. The cover member 71 is mounted to the front door 42. The cover member 71 is provided to close the opening formed by the opening end 70.

[0084] The cover member 71 includes a cover body 72 and a labyrinth 73. The cover body 72 has a plate shape parallel to the X-axis-Y-axis plane. The cover body 72 overlaps the side surface 48 to close the opening formed by the opening end 70.

[0085] The labyrinth 73 extends from the cover body 72 toward the first door 31 and bends at its tip to protrude in the -Z direction. The labyrinth 73 has a bent structure in which a plate parallel to the X-Y plane and a plate parallel to the X-Z plane form a corner.

[0086] The first door 31 has an inner surface 37. The inner surface 37 faces the outer surface 46 of the second door 41. The first door 31 has a labyrinth member 76. The labyrinth member 76 extends from the inner surface 37 toward the second door 41 (outer surface 46), and bends at its top end to protrude in the +Z-axis direction. When the first door 31 is positioned in the second position K and the second door 41 is positioned in the third position L, the labyrinth portion 73 and the labyrinth member 76 face each other with gaps in the Z-axis and Y-axis directions, forming a labyrinth structure.

[0087] With this structure, when assembling the processing machine 100 (cover body 21), the first traveling wheel 64 and the second traveling wheel 65 can be inserted into the groove portion 62 and the abutment portion 63, respectively, via the opening end portion 70. Furthermore, the cover member 71 is attached to the cover body 72, and the cover body 72 seals the opening formed by the opening end portion 70, thereby preventing foreign matter such as chips and cutting oil from the processing area 110 from entering the groove portion 62.

[0088] Furthermore, the labyrinth portion 73 constituting the labyrinth structure together with the labyrinth member 76 of the first door 31 is integrally provided on the cover member 71. With such a configuration, it is possible to suppress an increase in the number of parts and reduce the manufacturing cost of the processing machine 100.

[0089] Figure 9 It means along Figure 3 A cross-sectional view of the processing machine viewed along the IX-IX line in FIG. Figure 3 and Figure 9 The processing machine 100 further includes a support member 80 , a lower rail 81 , and a plurality of traveling wheels 82 , 83 , and 84 .

[0090] The support member 80 is provided below the first door 31 and the second door 41. The support member 80 is fixed to an oil pan (not shown) within the processing area 110. The lower rail 81 is supported by the support member 80. The lower rail 81 extends in the Z-axis direction. The lower rail 81 extends between the first position J, the second position K, and the third position L in the Z-axis direction.

[0091] The running wheels 82 are provided on the second door 41. The running wheels 82 are provided on the front door portion 42. The running wheels 82 are provided below the track member 61. The running wheels 82 are provided closer to the end of the second door 41 in the -Z axis direction in the Z axis direction than to the end of the second door 41 in the +Z axis direction.

[0092] The traveling wheels 83 and 84 are provided on the first door 31. The traveling wheels 83 and 84 are provided on the front door portion 32. The traveling wheels 83 and 84 are provided at a position lower than the first traveling wheels 64 and the second traveling wheels 65. The traveling wheels 83 and 84 are provided separately from each other in the Z-axis direction. The traveling wheels 83 are provided at a position closer to the end of the first door 31 in the -Z-axis direction in the Z-axis direction than the end of the first door 31 in the +Z-axis direction. The traveling wheels 84 are provided at a position separated from the traveling wheels 83 in the +Z-axis direction. The traveling wheels 84 are provided at a position closer to the end of the first door 31 in the +Z-axis direction in the Z-axis direction than the end of the first door 31 in the -Z-axis direction.

[0093] The running wheels 82, 83, and 84 are rotatable about a rotation axis 123 parallel to the Y-axis. The running wheels 82, 83, and 84 are, for example, pulleys having grooves that are recessed radially inward from the rotation axis 123 and extend circumferentially around the rotation axis 123.

[0094] The running wheels 82, 83, and 84 are mounted on the lower rail 81. The running wheel 82 moves along the lower rail 81 while rotating about the rotation axis 123, thereby supporting the second door 41 so that it can slide in the Z-axis direction. The running wheels 83 and 84 move along the lower rail 81 while rotating about the rotation axis 123, thereby supporting the first door 31 so that it can slide in the Z-axis direction.

[0095] The first door 31 and the second door 41 are supported from below by a single lower rail 81. The running wheels 82, 83, and 84 are arranged in a row in the Z-axis direction. Regardless of the positions of the first door 31 and the second door 41, the running wheels 82 are positioned closer to the -Z-axis direction than the running wheels 83 and 84.

[0096] Figure 10 It means along Figure 3 A cross-sectional view of the processing machine viewed from the direction of the XX line in FIG. Figure 3 and Figure 10 The processing machine 100 further includes a rail member 86 and travel wheels 88 .

[0097] The track member 86 is provided on the first door 31. The track member 86 is provided on the upper door portion 33. The track member 86 has a longitudinal shape with the Z-axis direction being the longitudinal direction. The track member 86 has a groove portion 87. The groove portion 87 opens toward the +Y-axis direction and has a groove shape extending in the Z-axis direction.

[0098] The running wheel 88 is provided on the second door 41. The running wheel 88 is provided on the upper door portion 43. The running wheel 88 is provided at a position closer to the end of the second door 41 in the +Z axis direction than to the end of the second door 41 in the -Z axis direction. When the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the running wheel 88 is provided at Figure 3 The first range 310 in.

[0099] The running wheel 88 is provided so as to be rotatable about a rotation axis 124 extending in the Y-axis direction. The running wheel 88 is constituted by, for example, a cam follower. The rail member 86 receives the weight of the second door 41 via the running wheel 88 .

[0100] The groove portion 87 engages with the second door 41. More specifically, the running wheel 88 fits into the groove portion 87. The running wheel 88 moves along the rail member 86 while rotating about the rotation axis 124, thereby supporting the second door 41 so as to be slidable in the Z-axis direction.

[0101] According to such a structure, the rail member 86 provided on the first door 31 receives the weight of the second door 41 via the running wheel 88. Figure 3 When the first door 31 is positioned at the second position K and the second door 41 is positioned at the third position L, the end portion of the second door 41 in the +Z axis direction can be prevented from tilting downward.

[0102] Figure 11 It means along Figure 3 A cross-sectional view of the processing machine viewed along the XI-XI line in FIG. Figure 3 and Figure 11 The processing machine 100 includes a support member 91, a top rail 92, a plurality of traveling wheels 94 (94A, 94B), a top rail 96, and a plurality of traveling wheels 98 (98A, 98B).

[0103] Support member 91 is provided adjacent to upper door 33 and upper door 43 in the -Y axis direction. Support member 91 is fixed to a frame member (not shown) disposed on the top of processing machine 100. Top rails 92 and 96 are provided on support member 91.

[0104] The top rail 92 is disposed opposite the upper door portion 43 in the Y-axis direction. The top rail 96 is disposed opposite the upper door portion 33 in the Y-axis direction. The top rail 92 is disposed below the top rail 96. The top rails 92 and 96 have a longitudinal shape with the Z-axis direction being the longitudinal direction. The top rail 92 is disposed so as to span between the first position J, the second position K, and the third position L in the Z-axis direction. The top rail 96 is disposed so as to span between the first position J and the second position K in the Z-axis direction.

[0105] Top rail 92 has multiple grooves 93 (93A, 93B). Grooves 93 are groove-shaped and extend in the Z-axis direction. Grooves 93 are located outside processing area 110. Grooves 93A open toward the -X-axis direction and extend in the Z-axis direction. Grooves 93B open toward the +Y-axis direction and extend in the Z-axis direction. Grooves 93A are located above grooves 93B.

[0106] Top rail 96 has multiple grooves 97 (97A, 97B). Grooves 97 are groove-shaped and extend in the Z-axis direction. Grooves 97 are located outside of processing area 110. Grooves 97A open toward the -X-axis direction and extend in the Z-axis direction. Grooves 97B open toward the +Y-axis direction and extend in the Z-axis direction. Grooves 97A are located above grooves 97B.

[0107] The running wheel 94 is provided on the second door 41. The running wheel 94 is provided on the upper door portion 43. The running wheel 94 is formed, for example, by a cam follower. The running wheel 94A is provided so as to be rotatable about a rotation axis 125 extending in the X-axis direction. The running wheel 94B is provided so as to be rotatable about a rotation axis 126 extending in the Y-axis direction. The running wheels 94A and 94B form a pair and are provided at two locations separated in the Z-axis direction.

[0108] The running wheels 94 are fitted into the groove 93. The running wheel 94A is fitted into the groove 93A, and the running wheel 94B is fitted into the groove 93B. The running wheel 94A moves along the groove 93A while rotating about the rotation axis 125, and the running wheel 94B moves along the groove 93B while rotating about the rotation axis 126. Thus, the second door 41 is supported so as to be slidable in the Z-axis direction.

[0109] The running wheels 98 are provided on the first door 31. The running wheels 98 are provided on the upper door portion 33. The running wheels 98 are formed, for example, by cam followers. The running wheel 98A is rotatable about a rotation axis 127 extending in the X-axis direction. The running wheel 98B is rotatable about a rotation axis 128 extending in the Y-axis direction. The running wheels 98A and 98B form a pair and are provided at two locations separated in the Z-axis direction.

[0110] The running wheels 98 are fitted into the groove 97. The running wheel 98A is fitted into the groove 97A, and the running wheel 98B is fitted into the groove 97B. The running wheel 98A moves along the groove 97A while rotating about the rotation axis 127, and the running wheel 98B moves along the groove 97B while rotating about the rotation axis 128. Thus, the first door 31 is supported so as to be slidable in the Z-axis direction.

[0111] The structure of the processing machine 100 and the structure of the sliding mechanism applied to the processing machine 100 described above will be summarized. The processing machine 100 in this embodiment includes: a cover 21 having an opening 50 and defining a processing area 110; a first door 31 capable of sliding in a predetermined horizontal direction between a first position J for opening the opening 50 and a second position K for blocking the opening 50; a second door 41 disposed from the inside of the processing area 110 so as to overlap with the first door 31 and capable of sliding in the horizontal direction between the first position J for opening the opening 50 and a third position L, the third position L being located on the opposite side of the first position J relative to the second position K. At the third position L, the second door 41 and the first door 31 block the opening 50; and a rail member 61 including a groove 62 and an abutment 63 as an engaging portion for engaging with the first door 31, disposed on the second door 41 and capable of sliding the second door 41 in the horizontal direction relative to the first door 31. The groove 62 and the abutment 63 are disposed outside the processing area 110.

[0112] In addition, the sliding mechanism of the processing machine 100 suitable for this embodiment includes: a first door 31 as a base member; a second door 41 as a movable body, which can slide in a horizontal direction as a predetermined direction; and a track member 61, which is arranged on the second door 41 and engages with the first door 31 in such a manner that the second door 41 can slide in a horizontal direction relative to the first door 31.

[0113] Furthermore, in this embodiment, the first door 31 and the second door 41 are described as being slidable in the horizontal direction. However, the present invention is not limited thereto, and the first door and the second door in the present invention may be slidable in the vertical direction, for example.

[0114] In addition, the processing machinery in the present invention is not limited to a combination machine tool. For example, it can be a lathe, a vertical machining center or a horizontal machining center, or an AM / SM hybrid processing machine that can perform additional processing of workpieces (AM (Additive Manufacturing) processing) and removal processing of workpieces (SM (Subtractive Manufacturing) processing).

[0115] Furthermore, the sliding mechanism of the present invention is not limited to doors of processing machines, and can also be applied to doors of automobiles or automatic doors, for example.

[0116] The embodiments disclosed herein are to be considered in all respects as illustrative and non-restrictive. The scope of the present invention is indicated by the claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0117] Industrial applicability

[0118] The present invention is applicable to a processing machine having an openable and closable door or a sliding mechanism such as a door.

[0119] Description of Reference Numerals

[0120] 21. Cover; 26. Tool magazine cover; 27. Side cover; 31. First door; 32, 42. Front door portion; 33, 43. Upper door portion; 34, 44. Transparent window; 37, 47. Inner surface; 41. Second door; 45. Door body; 46. Outer surface; 48. Side; 49. Notch; 50. Opening; 51. Front opening; 52. Upper opening; 61, 61A, 61B, 86. Track member; 62, 87, 93, 93A, 93B, 97, 97A, 97B, Groove; 63. Abutment; 64, 64A, 64B. First travel wheel; 65. Second travel wheel; 66. First block; 67. Frame Frame; 68. Bolt; 69. Second block; 70. Open end; 71. Cover member; 72. Cover body; 73. Labyrinth; 76. Labyrinth member; 80, 91. Support member; 81. Lower rail; 82, 83, 84, 88, 94, 94A, 94B, 98, 98A, 98B, Traveling wheels; 92, 96. Top rail; 100. Processing machinery; 110. Processing area; 115. Internal space; 121, 122, 123, 124, 125, 126, 127, 128. Rotating axis; 310. First range; 320. Second range; J, First position; K, Second position; L, Third position.

Claims

1. A processing machine comprising: A cover body is provided with an opening portion to divide and form a processing area; a first door slidable in a predetermined direction between a first position for opening the opening and a second position for blocking the opening; a second door arranged to overlap with the first door from the inside of the processing area and slidable in the predetermined direction between the first position at which the opening is opened and a third position, the third position being located on the opposite side of the first position relative to the second position, and at the third position, the second door and the first door together block the opening; and a track member including an engaging portion engaged with the first door, provided on the second door, capable of sliding the second door relative to the first door along the predetermined direction; The engaging portion is arranged outside the processing area. The second door includes an outer surface and an inner surface, the outer surface is arranged outside the processing area, and when the first door and the second door are positioned at the first position, the outer surface faces the first door, and the inner surface is arranged on the inner side of the outer surface and is inside the processing area. The second door is provided with an internal space and a notch portion, wherein the internal space is located between the outer surface and the inner surface, the internal space and the processing area are separated from each other by the inner surface, and the notch portion opens on the outer surface and is connected to the internal space. The track member is accommodated in the internal space. The first door enters the internal space through the notch portion and engages with the engaging portion in the internal space.

2. The processing machine according to claim 1, wherein: The rail member is provided on the second door so as not to protrude from the outer surface toward the first door.

3. The processing machine according to claim 1 or 2, wherein: The engaging portion includes a groove portion in a groove shape extending in the predetermined direction; and an abutting portion in a plane shape extending in the predetermined direction. The engaging portion includes an opening end portion, which is arranged opposite to the first door when the first door is positioned at the second position and the second door is positioned at the third position, and is opened toward a direction along the predetermined direction. The second door further includes: a door body portion on which the rail member is mounted; and a cover member mounted on the door body portion to close the opening formed by the opening end portion.

4. The processing machine according to claim 3, wherein: The cover member includes a cover body portion and a labyrinth portion. The cover body portion closes the opening formed by the opening end portion. The labyrinth portion extends from the cover body portion toward the first door. The first door has a labyrinth member, and the labyrinth member extends toward the second door. The labyrinth portion is bent at its top end toward the labyrinth member side in the predetermined direction, The labyrinth member is bent at its top end toward the labyrinth portion in the predetermined direction. The labyrinth portion and the labyrinth member face each other with a gap therebetween, thereby forming a labyrinth structure.

5. The processing machine according to claim 1 or 2, wherein: The predetermined direction is a horizontal direction, The opening portion includes: a front opening portion, which is arranged in front of the machine in the processing area; and an upper opening portion, which is connected to the front opening portion and is arranged above the processing area. The second door includes a front door portion that blocks the front opening when positioned at the third position and an upper door portion that blocks the upper opening. The rail member is provided at the front door portion of the front door portion and the upper door portion.

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