Workstation device

Abstract

The table device has: a base portion; a first direct-acting mechanism including a first guide rail and a first slider; a support portion including: a first support surface mounted to the first slider; and a second support surface arranged at a spaced interval from the first support surface in a direction perpendicular to the base surface; movable along a first direction together with the first slider; a second direct-acting mechanism including a second guide rail and a second slider; a table portion including: a first table surface, a second table surface, a third table surface, and a fourth table surface, movable along a second direction together with the second slider; a third direct-acting mechanism including a third guide rail and a third slider; a fourth direct-acting mechanism including a fourth guide rail mounted to the fourth table surface and a fourth slider; a first drive portion causing a first moving portion mounted to the third slider to perform linear reciprocating motion in the first direction; and a second drive portion causing a second moving portion mounted to the fourth slider to perform linear reciprocating motion in the first direction.

Description

Technical Field

[0001] This disclosure relates to a workbench device. This application claims priority based on Japanese Application No. 2023-005776, filed on January 18, 2023, and incorporates all the contents of that Japanese application. Background Technology

[0002] A worktable device including a worktable that can move in the horizontal and vertical directions is disclosed (see, for example, Patent Document 1).

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2011-112625 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In a table device, there are situations where the table can move horizontally (X-direction) and orthogonally (Y-direction). Such a table device requires a low cross-section.

[0008] Therefore, one of the objectives of this disclosure is to provide a worktable device that enables the reduction of the cross-section of the device.

[0009] Technical means to solve the problem

[0010] The workbench device disclosed herein has the following features:

[0011] The base portion has a base surface;

[0012] The first direct-acting mechanism includes: a first guide rail mounted on the base surface and extending along a first direction; and a first slider mounted on the first guide rail and capable of moving along the first direction.

[0013] The support includes: a first support surface facing the base surface and mounted on the first slider; and a second support surface spaced apart from the first support surface in a direction perpendicular to the base surface; the support is movable together with the first slider in a first direction.

[0014] The second linear motion mechanism includes: a second guide rail mounted on a second support surface and extending along a second direction intersecting the first direction; and a second slider mounted on the second guide rail and capable of moving along the second direction.

[0015] The worktable includes: a first worktable surface facing a second support surface and mounted on a second sliding member; a second worktable surface spaced apart from the first worktable surface in a direction perpendicular to the base surface; a third worktable surface intersecting the first and second worktable surfaces respectively; and a fourth worktable surface intersecting the first, second, and third worktable surfaces respectively; and is capable of moving together with the second sliding member along a second direction.

[0016] The third linear motion mechanism includes: a third guide rail mounted on the third worktable and extending along a third direction that intersects the first and second directions respectively; and a third slider mounted on the third guide rail and capable of moving along the third direction.

[0017] The fourth linear motion mechanism includes: a fourth guide rail, mounted on the fourth worktable and extending along a fourth direction that intersects the first direction, the second direction and the third direction respectively; and a fourth slider, mounted on the fourth guide rail and capable of moving along the fourth direction;

[0018] A first driving unit includes a first moving part mounted on a third sliding member, which causes the first moving part to perform linear reciprocating motion in a first direction; and

[0019] The second drive unit includes a second moving part mounted on the fourth slider, which causes the second moving part to perform linear reciprocating motion in a first direction.

[0020] Invention Effects

[0021] The aforementioned workbench device enables the device to achieve a low cross-section. Attached Figure Description

[0022] Figure 1 This is a schematic perspective view of the workbench apparatus in Embodiment 1 of this disclosure.

[0023] Figure 2 yes Figure 1 A schematic top view of the workbench assembly shown.

[0024] Figure 3 yes Figure 1 A schematic side view of the workbench assembly shown.

[0025] Figure 4 yes Figure 1 A schematic front view of the workbench assembly shown.

[0026] Figure 5 Is Figure 2 A rough cross-sectional view of the section cut off at the point indicated by arrow VV.

[0027] Figure 6 Is Figure 1A schematic perspective view of the worktable assembly shown, with the worktable section described later removed.

[0028] Figure 7 yes Figure 6 A schematic top view of the workbench assembly shown.

[0029] Figure 8 yes Figure 6 A schematic side view of the workbench assembly shown.

[0030] Figure 9 yes Figure 6 A schematic front view of the workbench assembly shown.

[0031] Figure 10 Is Figure 6 A schematic perspective view of the worktable assembly shown with the support section and the second linear motion device (described later) removed.

[0032] Figure 11 yes Figure 10 A schematic top view of the workbench assembly shown.

[0033] Figure 12 yes Figure 10 A schematic side view of the workbench assembly shown.

[0034] Figure 13 yes Figure 10 A schematic front view of the workbench assembly shown.

[0035] Figure 14 This is a schematic top view of the worktable device when the worktable section moves in the direction indicated by arrow D1 in the first direction.

[0036] Figure 15 This is a schematic top view of the worktable device when the worktable section moves in the direction indicated by arrow D2 in the first direction.

[0037] Figure 16 This is a schematic top view of the worktable device when the worktable section moves in the direction indicated by arrow D3 in the second direction.

[0038] Figure 17 This is a schematic top view of the worktable assembly when the worktable section moves in the direction indicated by arrow D4 in the second direction.

[0039] Figure 18 This is a schematic perspective view of the workbench device in Embodiment 2 of this disclosure.

[0040] Figure 19 yes Figure 18 A schematic top view of the workbench assembly shown.

[0041] Figure 20 yes Figure 18 A schematic side view of the workbench assembly shown.

[0042] Figure 21 yes Figure 18 A schematic front view of the workbench assembly shown.

[0043] Figure 22 Is Figure 18 A schematic perspective view of the worktable assembly shown, with the rotary table (described later) removed.

[0044] Figure 23 yes Figure 22 A schematic top view of the workbench assembly shown.

[0045] Figure 24 yes Figure 22 A schematic side view of the workbench assembly shown.

[0046] Figure 25 yes Figure 22 A schematic front view of the workbench assembly shown.

[0047] Figure 26 This is a schematic perspective view showing the rotary table, which will be described later, included in the worktable assembly.

[0048] Figure 27 This is a schematic perspective view of the worktable device that shows the state in which the rotary table described later rotates.

[0049] Figure 28 yes Figure 27 A schematic top view of the workbench assembly shown.

[0050] Figure 29 yes Figure 27 A schematic side view of the workbench assembly shown.

[0051] Figure 30 yes Figure 27 A schematic front view of the workbench assembly shown. Detailed Implementation

[0052] [Summary of Implementation Methods]

[0053] The workbench device disclosed herein has the following features:

[0054] The base portion has a base surface;

[0055] The first direct-acting mechanism includes: a first guide rail mounted on the base surface and extending along a first direction; and a first slider mounted on the first guide rail and capable of moving along the first direction.

[0056] The support includes: a first support surface facing the base surface and mounted on the first slider; and a second support surface spaced apart from the first support surface in a direction perpendicular to the base surface; the support is movable together with the first slider in a first direction.

[0057] The second linear motion mechanism includes: a second guide rail mounted on a second support surface and extending along a second direction intersecting the first direction; and a second slider mounted on the second guide rail and capable of moving along the second direction.

[0058] The worktable includes: a first worktable surface facing a second support surface and mounted on a second sliding member; a second worktable surface spaced apart from the first worktable surface in a direction perpendicular to the base surface; a third worktable surface intersecting the first and second worktable surfaces respectively; and a fourth worktable surface intersecting the first, second, and third worktable surfaces respectively; the worktable is movable together with the second sliding member along a second direction.

[0059] The third linear motion mechanism includes: a third guide rail mounted on the third worktable and extending along a third direction that intersects the first and second directions respectively; and a third slider mounted on the third guide rail and capable of moving along the third direction.

[0060] The fourth linear motion mechanism includes: a fourth guide rail, mounted on the fourth worktable and extending along a fourth direction that intersects the first direction, the second direction and the third direction respectively; and a fourth slider, mounted on the fourth guide rail and capable of moving along the fourth direction;

[0061] A first driving unit includes a first moving part mounted on a third sliding member, which causes the first moving part to perform linear reciprocating motion in a first direction; and

[0062] The second drive unit includes a second moving part mounted on the fourth slider, which causes the second moving part to perform linear reciprocating motion in a first direction.

[0063] According to the worktable device of this disclosure, by controlling the linear reciprocating motion of the first moving part performed by the first drive unit and the linear reciprocating motion of the second moving part performed by the second drive unit, and by utilizing the guidance of the third and fourth linear mechanisms, the worktable part can be moved to any position in the first and second directions on a plane defined by the first and second directions. In this case, the movement of the worktable part in the first direction is guided by the first linear mechanism, and the movement of the worktable part in the second direction is guided by the second linear mechanism, thus enabling smooth movement of the worktable part. Here, a first sliding member included in the first linear mechanism is mounted on the first support surface of the support part, and a second guide rail included in the second linear mechanism is mounted on the second support surface of the support part, thus reducing the size of the mechanism for moving the worktable part in the first and second directions in the direction perpendicular to the base surface. Therefore, according to such a worktable device, a low cross-section of the device can be achieved.

[0064] In the aforementioned worktable device, the first direction and the second direction can also be orthogonal. This allows for more efficient movement of the worktable portion in the aforementioned plane in both the first and second directions.

[0065] In the aforementioned worktable device, the third and fourth directions can also be orthogonal. This allows for more efficient movement of the worktable section in the aforementioned plane in both the first and second directions.

[0066] In the aforementioned worktable device, the first direct-acting mechanism may also include a plurality of first guide rails and a plurality of first sliding members. In this way, by utilizing a plurality of first guide rails and a plurality of first sliding members, the movement of the worktable in the first direction can be performed more stably.

[0067] In the aforementioned worktable device, the second linear motion mechanism may also include a plurality of second guide rails and a plurality of second sliding members. In this way, by utilizing a plurality of second guide rails and a plurality of second sliding members, the movement of the worktable in the second direction can be performed more stably.

[0068] In the aforementioned worktable device, at least one of the first and second drive units may also include: a ball screw having a screw shaft and a nut; and a motor to rotate the screw shaft. This makes it easier to more precisely control the linear reciprocating motion of at least one of the first and second moving units. Therefore, precise positioning of the worktable section becomes easier.

[0069] In the aforementioned worktable device, the third and fourth worktable surfaces can also be orthogonal. This allows for more efficient movement of the worktable portion in the aforementioned plane in both the first and second directions.

[0070] In the aforementioned worktable device, the first drive unit and the second drive unit can also be arranged spaced apart in the second direction. This allows the extension directions of the cables connected to the first drive unit and the second drive unit to be aligned, simplifying cable handling during installation. Therefore, it is easier to achieve a lower cross-section for the device.

[0071] In the aforementioned worktable assembly, the first direct-acting mechanism may also include a pair of first guide rails and a pair of first sliding members. The second direct-acting mechanism may also include a pair of second guide rails and a pair of second sliding members. The pair of first guide rails may be arranged in parallel. The pair of second guide rails may be arranged in parallel. The second guide rails may also be orthogonal to the first guide rails. In this way, the loads on the first and second direct-acting mechanisms in the directions orthogonal to the base surface can be appropriately distributed. Therefore, the movement of the worktable section in the first and second directions can be controlled more stably.

[0072] In the aforementioned worktable assembly, the third and fourth worktable surfaces can also extend in a direction perpendicular to the base surface, forming the sides of the worktable section. This allows for a simpler structure to be formed of the worktable section. Therefore, the structure of the worktable assembly can be further simplified.

[0073] In the aforementioned worktable assembly, the first drive unit may also include a fifth linear motion mechanism. The second drive unit may also include a sixth linear motion mechanism. The fifth linear motion mechanism may also include: a fifth guide rail, mounted on the base surface and extending along a first direction; and a fifth slider, mounted on the fifth guide rail and capable of moving along the first direction. The first moving part may also be mounted on the fifth slider. The sixth linear motion mechanism may also include: a sixth guide rail, mounted on the base surface and extending along the first direction; and a sixth slider, mounted on the sixth guide rail and capable of moving along the first direction. The second moving part may also be mounted on the sixth slider. In this way, in the first drive unit, the first moving part can be smoothly moved along the first direction using the fifth linear motion mechanism. Furthermore, in the second drive unit, the second moving part can be smoothly moved along the first direction using the sixth linear motion mechanism. Therefore, the movement of the worktable can be performed more smoothly.

[0074] The aforementioned worktable device may further include: a third drive unit, comprising a third moving unit capable of moving along a third direction intersecting the first direction, causing the third moving unit to perform linear reciprocating motion in the third direction; a shaft extending in a direction perpendicular to a plane defined by the first direction and the third direction; a rotating unit mounted on the third moving unit and rotating about the shaft as the third moving unit moves; and a rotary table disposed on a second worktable surface, mounted on the rotary unit, and capable of rotating as the third moving unit moves. This allows the rotary table to rotate in a plane defined by the first direction and the third direction. Consequently, the worktable can move along the first and second directions, causing the rotary table to rotate. Therefore, improved convenience can be achieved.

[0075] In the aforementioned worktable device, the third direction can also be orthogonal to the first direction, and be the same direction as the second direction. This reduces the possibility of interference between the third drive unit and the rotary table when the rotary table is rotated, allowing it to rotate efficiently.

[0076] In the aforementioned worktable assembly, the third drive unit may also include a seventh linear motion mechanism. The seventh linear motion mechanism may also include: a seventh guide rail, mounted on the base surface and extending in a third direction; and a seventh slider, mounted on the seventh guide rail and capable of moving in a third direction. The third moving part may also be mounted on the seventh slider. In this way, in the third drive unit, the seventh linear motion mechanism can smoothly move the third moving part in a third direction. Therefore, the rotation of the rotary table can be performed more smoothly.

[0077] In the aforementioned worktable assembly, the rotating part may also include a bearing supporting the shaft. This allows for smoother rotation of the rotating part, and consequently, smoother rotation of the rotary table.

[0078] In the aforementioned worktable assembly, the rotating part may also include: a mounting part mounted on the side of the rotary table; and an eighth linear motion mechanism. The eighth linear motion mechanism may also include: an eighth guide rail mounted on the mounting part and extending radially along the rotary table; and an eighth sliding member mounted on the eighth guide rail, capable of moving radially along the rotary table. A third moving part may also be mounted on the eighth sliding member. This allows for smoother movement of the mounting part. Therefore, the rotary table can rotate more smoothly.

[0079] [Specific examples of implementation methods]

[0080] Next, an example of a specific embodiment of the workbench device of this disclosure will be described with reference to the accompanying drawings. In the following drawings, the same or equivalent parts will be given the same reference numerals and their descriptions will not be repeated.

[0081] (Implementation Method 1)

[0082] First, the implementation method of this disclosure, namely Implementation Method 1, will be described. Figure 1 This is a schematic perspective view showing the workbench apparatus in Embodiment 1 of this disclosure. Figure 1 In the diagram, arrow X indicates the direction from the front of the worktable assembly towards the back, arrow Y indicates the direction from the left side of the worktable assembly towards the right side, and arrow Z indicates the direction from the bottom of the worktable assembly towards the top. The direction indicated by arrow Z is defined as the height direction of the worktable assembly. The same applies to the following attached diagrams.

[0083] Figure 2 yes Figure 1 The diagram shows a schematic top view of the workbench assembly. Furthermore, regarding the cables described later, only... Figure 2 , Figure 7 and Figure 11 The illustration in the middle is omitted from other illustrations. Figure 3 yes Figure 1 A schematic side view of the workbench assembly shown. Figure 4 yes Figure 1 A schematic front view of the workbench assembly shown. Figure 5 Is Figure 2 A rough cross-sectional view of the section cut off at the point indicated by arrow VV. Figure 6 Is Figure 1 A schematic perspective view of the worktable assembly shown, with the worktable section described later removed. Figure 7 yes Figure 6 A schematic top view of the workbench assembly shown. Figure 8 yes Figure 6 A schematic side view of the workbench assembly shown. Figure 9 yes Figure 6 A schematic front view of the workbench assembly shown. Figure 10 Is Figure 6 A schematic perspective view of the worktable assembly shown with the support section and the second linear motion device (described later) removed. Figure 11 yes Figure 10 A schematic top view of the workbench assembly shown. Figure 12 yes Figure 10 A schematic side view of the workbench assembly shown. Figure 13 yes Figure 10 A schematic front view of the workbench assembly shown.

[0084] Reference Figures 1 to 13 In Embodiment 1 of this disclosure, the workbench device 10 moves the workbench section 13 (described later) along a first direction, namely the X direction, and a second direction, namely the Y direction, thereby determining its position.

[0085] The worktable assembly 10 includes a base portion 11, a support portion 12, and a worktable portion 13. The base portion 11 is plate-shaped. In this embodiment, when viewed from the height direction, i.e., the thickness direction (Z direction), of the worktable assembly 10, the base portion 11 is a rectangle whose length in the X direction is longer than its length in the Y direction. The base portion 11 includes a base surface 14 located on one side of the thickness direction. The base surface 14 is a surface on which the first linear mechanism, etc., described later, is mounted. The base surface 14 is a plane, parallel to the XY plane.

[0086] The support portion 12 includes: a first support surface 15 facing the base surface 14; and a second support surface 16 spaced apart from the first support surface 15 in the Z direction, which is perpendicular to the base surface 14. The support portion 12 is spaced apart from both the base portion 11 and the worktable portion 13 in the Z direction. That is, the support portion 12 is positioned between the base portion 11 and the worktable portion 13 in the Z direction.

[0087] The worktable section 13 includes: a first worktable surface 21 facing the second support surface 16; a second worktable surface 22 spaced apart from the first worktable surface 21 in the Z direction; a third worktable surface 23 intersecting the first worktable surface 21 and the second worktable surface 22 respectively; and a fourth worktable surface 24 intersecting the first worktable surface 21, the second worktable surface 22, and the third worktable surface respectively. Objects are placed on the second worktable surface 22 or mounted using the four mounting holes 27 provided from the opening of the second worktable surface 22. That is, the second worktable surface 22 functions as a worktable surface for placing objects in the worktable assembly 10. The third worktable surface 23 and the fourth worktable surface 24 extend in a direction perpendicular to the base surface 14. The third worktable surface 23 and the fourth worktable surface 24 are arranged adjacent to each other. The third worktable surface 23 and the fourth worktable surface 24 respectively form the sides of the worktable section 13. The structure of these support sections 12 and the worktable section 13 will be described in detail later.

[0088] The worktable device 10 includes a first direct drive mechanism 31, a second direct drive mechanism 32, a third direct drive mechanism 33, and a fourth direct drive mechanism 34. Additionally, the worktable device 10 includes a first drive unit 61 and a second drive unit 62.

[0089] The first direct-acting mechanism 31 is mounted on the base 11. The first direct-acting mechanism 31 includes: first guide rails 41a and 41b extending along a first direction, i.e., the X direction; and first sliding members 51a and 51b, each mounted on the first guide rails 41a and 41b, capable of moving along the first direction, i.e., the X direction. That is, the first guide rails 41a and 41b are respectively configured such that their length direction is the X direction. In this embodiment, the worktable device 10 includes a plurality of first guide rails 41a and 41b, specifically including a pair (two) of first guide rails 41a and 41b. The first guide rails 41a and 41b are respectively mounted on the base surface 14. The first guide rails 41a and 41b are respectively fixed to the base surface 14 by bolts (not shown). The pair of first guide rails 41a and 41b are arranged parallel to each other with a gap in the Y direction. Guide rail surfaces are provided on both sides of the first guide rails 41a and 41b in the Y direction. These guide rail surfaces are used for the rolling elements, which are balls in this embodiment, to roll.

[0090] The first slider 51a, mounted on the first guide rail 41a, is movable in the X direction. The first slider 51a can smoothly reciprocate linearly in the X direction using a plurality of ball bearings disposed between the first slider 51a and the guide rail surface of the first guide rail 41a. The first slider 51b, mounted on the first guide rail 41b, also moves in the X direction in the same way as the first slider 51a. The first slider 51b can smoothly reciprocate linearly in the X direction using a plurality of ball bearings disposed between the first slider 51b and the guide rail surface of the first guide rail 41b.

[0091] The support portion 12 is flat. When viewed from a direction perpendicular to the base surface 14, the support portion 12 has its four corners removed, resembling a rectangle. The support portion 12 is mounted to the first sliding members 51a and 51b. Specifically, the first support surface 15 of the support portion 12, facing the base surface 14, is mounted on the first sliding members 51a and 51b. The support portion 12 is fixed to the first sliding members 51a and 51b by bolts (not shown). Since the support portion 12 is mounted to the first sliding members 51a and 51b, it is guided by the first direct-acting mechanism 31 when the support portion 12 moves in the X direction. That is, the support portion 12 can move together with the first sliding members 51a and 51b in the first direction, i.e., the X direction.

[0092] The second linear motion mechanism 32 is mounted on the support portion 12. The second linear motion mechanism 32 includes: second guide rails 42a and 42b extending along a second direction, i.e., the Y direction; and second sliding members 52a and 52b, each mounted on the second guide rails 42a and 42b, capable of moving along the second direction, i.e., the Y direction. That is, the second guide rails 42a and 42b are respectively configured such that their length direction is the Y direction. In this embodiment, the worktable device 10 includes a plurality of second guide rails 42a and 42b, specifically including a pair (two) of second guide rails 42a and 42b. The second guide rails 42a and 42b are respectively mounted on the second support surface 16. The second guide rails 42a and 42b are respectively fixed to the second support surface 16 by bolts (not shown). The pair of second guide rails 42a and 42b are arranged parallel to each other at intervals in the X direction. Furthermore, the second guide rails 42a and 42b are each orthogonal to the first guide rails 41a and 41b. Guide rail surfaces are provided on both sides of the second guide rails 42a and 42b in the X direction, which are used for the rolling elements, which in this embodiment are balls, to roll.

[0093] The second slider 52a, mounted on the second guide rail 42a, is movable in the Y direction. The second slider 52a can smoothly reciprocate linearly in the Y direction using a plurality of ball bearings disposed between the second slider 52a and the guide rail surface of the second guide rail 42a. The second slider 52b, mounted on the second guide rail 42b, is also movable in the Y direction, similarly to the second slider 52a. The second slider 52b can smoothly reciprocate linearly in the Y direction using a plurality of ball bearings disposed between the second slider 52b and the guide rail surface of the second guide rail 42b.

[0094] The worktable portion 13 is flat. When viewed from a direction perpendicular to the base surface 14, the worktable portion 13 is rectangular. The worktable portion 13 is mounted on the second sliding members 52a and 52b. Specifically, the first worktable surface 21 of the worktable portion 13, facing the second support surface 16, is mounted on the second sliding members 52a and 52b. Furthermore, the third worktable surface 23 and the fourth worktable surface 24 of the worktable portion 13 are inclined at 45 degrees relative to the X and Y directions, respectively. The worktable portion 13 is fixed to the second sliding members 52a and 52b by bolts (not shown). Since the worktable portion 13 is mounted on the second sliding members 52a and 52b, it is guided by the second direct-acting mechanism 32 when moving in the Y direction. That is, the worktable portion 13 can move together with the second sliding members 52a and 52b in the second direction, i.e., the Y direction. Furthermore, since the worktable 13 is mounted on the support 12, which is movable in the X direction, it can move together with the support 12 in the X direction. That is, the worktable 13 can move in both the X and Y directions. When the worktable 13 moves in the X direction, it is guided by the first direct-acting mechanism 31, and when the worktable 13 moves in the Y direction, it is guided by the second direct-acting mechanism 32.

[0095] A third linear motion mechanism 33 is mounted on a third worktable surface 23. The third linear motion mechanism 33 includes: a third guide rail 43a extending along a third direction that intersects the first direction (X-direction) and the second direction (Y-direction); and a third sliding member 53a mounted on the third guide rail 43a and movable along the third direction. In this embodiment, the third direction is a direction inclined at 45 degrees relative to both the X and Y directions. The third guide rail 43a is configured such that its length direction is inclined at 45 degrees relative to both the X and Y directions. In this embodiment, the third guide rail 43a is fixed to the third worktable surface 23 by bolts (not shown). Guide rail surfaces are provided on both sides of the third guide rail 43a, which are rolling surfaces for the rolling element (in this embodiment, a ball bearing) to roll.

[0096] A fourth linear motion mechanism 34 is mounted on a fourth worktable surface 24. The fourth linear motion mechanism 34 includes: a fourth guide rail 44a extending along a fourth direction that intersects the first direction (X-direction), the second direction (Y-direction), and a third direction; and a fourth sliding member 54a mounted on the fourth guide rail 44a and movable along the fourth direction. In this embodiment, the fourth direction is a direction inclined at 45 degrees relative to both the X and Y directions, and is orthogonal to the third direction. The fourth guide rail 44a is configured such that its length direction is inclined at 45 degrees relative to both the X and Y directions. In this embodiment, the fourth guide rail 44a is fixed to the fourth worktable surface 24 by bolts (not shown). Guide rail surfaces are provided on both sides of the fourth guide rail 44a, which are rolling surfaces for the rolling element (in this embodiment, a ball bearing) to roll.

[0097] The first drive unit 61 and the second drive unit 62 are respectively mounted on the base unit 11. Specifically, the first drive unit 61 and the second drive unit 62 are arranged at a distance from each other in the second direction, i.e., the Y direction.

[0098] The first drive unit 61 includes a first moving part 63a. The first moving part 63a is block-shaped and includes a first mounting surface 25 facing the third worktable surface 23. The first mounting surface 25 is a plane, inclined at 45 degrees with respect to both the X and Y directions. In this embodiment, the first mounting surface 25 and the third worktable surface 23 are parallel. The first moving part 63a is mounted to the third sliding member 53a. In this case, it is also mounted using bolts (not shown).

[0099] The first drive unit 61 includes: a ball screw 65a having a screw shaft 64a and a nut 67a; and a motor 66a that rotates the screw shaft 64a. The nut 67a is mounted on the screw shaft 64a. A first moving part 63a is mounted on the nut 67a. By supplying power to the motor 66a, the rotation shaft of the motor 66a is rotated, thereby rotating the screw shaft 64a. The motor 66a can also rotate the screw shaft 64a in the reverse direction. That is, the motor 66a can rotate the screw shaft 64a in either the forward or reverse direction. A cable 68a, connected to the first drive unit 61 and extending from the side of the motor 66a opposite to the motor 66b, extends from the motor 66a in the direction of arrow Y (see in particular). Figure 2 , Figure 7 and Figure 11 ).

[0100] Additionally, the first drive unit 61 includes a fifth linear motion mechanism 35. The fifth linear motion mechanism 35 is mounted on the base unit 11. The fifth linear motion mechanism 35 includes: a fifth guide rail 45a extending along a first direction, i.e., the X direction; and a fifth sliding member 55a mounted on the fifth guide rail 45a, capable of moving along the first direction, i.e., the X direction. That is, the fifth guide rail 45a is configured such that its length direction is the X direction. The fifth guide rail 45a is mounted on the base surface 14. The fifth guide rail 45a is fixed to the base surface 14 by bolts (not shown). Guide rail track surfaces are provided on both sides of the fifth guide rail 45a in the Y direction, and these guide rail track surfaces are for the rolling elements, in this embodiment, to roll on.

[0101] The fifth slider 55a, mounted on the fifth guide rail 45a, is movable in the X direction. The fifth slider 55a can smoothly perform linear reciprocating motion in the X direction using a plurality of ball bearings disposed between the fifth slider 55a and the guide rail surface of the fifth guide rail 45a. The first moving part 63a is mounted on the fifth slider 55a. When the first moving part 63a performs linear reciprocating motion in the X direction, it is appropriately guided by the fifth linear motion mechanism 35.

[0102] The second drive unit 62 includes a second moving part 63b. The second moving part 63b is block-shaped and includes a second mounting surface 26 facing the fourth worktable surface 24. The second mounting surface 26 is a plane, inclined at 45 degrees relative to both the X and Y directions. Furthermore, the second mounting surface 26 is orthogonal to the first mounting surface 25. In this embodiment, the second mounting surface 26 and the fourth worktable surface 24 are parallel. The second moving part 63b is mounted to the fourth sliding member 54a. In this case, it is also mounted using bolts (not shown).

[0103] The second drive unit 62 includes: a ball screw 65b having a screw shaft 64b and a nut 67b; and a motor 66b that rotates the screw shaft 64b. The nut 67b is mounted on the screw shaft 64b. A second moving part 63b is mounted on the nut 67b. By supplying power to the motor 66b, the rotation shaft of the motor 66b is rotated, which in turn rotates the screw shaft 64b. The motor 66b can also rotate the screw shaft 64b in the opposite direction. That is, the motor 66b can rotate the screw shaft 64b in either the forward or reverse direction. A cable 68b, connected to the second drive unit 62 and extending from the side of the motor 66b opposite to the motor 66a, extends from the motor 66b in the direction of arrow Y (see in particular). Figure 2 , Figure 7 and Figure 11 ).

[0104] Additionally, the second drive unit 62 includes a sixth linear motion mechanism 36. The sixth linear motion mechanism 36 is mounted on the base unit 11. The sixth linear motion mechanism 36 includes: a sixth guide rail 46a extending along a first direction, i.e., the X direction; and a sixth slider 56a mounted on the sixth guide rail 46a, capable of moving along the first direction, i.e., the X direction. That is, the sixth guide rail 46a is configured such that its length direction is the X direction. The sixth guide rail 46a is mounted on the base surface 14. The sixth guide rail 46a is fixed to the base surface 14 by bolts (not shown). Guide rail track surfaces are mounted on both sides of the sixth guide rail 46a in the Y direction, and these guide rail track surfaces are for the rolling elements, in this embodiment, to roll on.

[0105] The sixth slider 56a, mounted on the sixth guide rail 46a, is movable in the X direction. The sixth slider 56a can smoothly perform linear reciprocating motion in the X direction using a plurality of ball bearings disposed between the sixth slider 56a and the guide rail surface of the sixth guide rail 46a. The second moving part 63b is mounted on the sixth slider 56a. When the second moving part 63b performs linear reciprocating motion in the X direction, it is appropriately guided by the sixth linear motion mechanism 36.

[0106] Next, the operation of the worktable assembly 10 with the above-described structure will be explained. The worktable assembly 10 positions the worktable section 13 by moving it in the first direction (X-direction) and the second direction (Y-direction). When the motor 66a rotates, the ball screw 65a moves the first moving part 63a mounted on the nut 67a in the direction indicated by arrow X or the opposite direction. Furthermore, when the motor 66b rotates, the ball screw 65b moves the second moving part 63b mounted on the nut 67b in the direction indicated by arrow X or the opposite direction. Linked to the movement of the first moving part 63a and the second moving part 63b, the movement of the worktable section 13 is guided by the third direct-acting mechanism 33 and the fourth direct-acting mechanism 34, enabling the worktable section 13 to move in the XY plane.

[0107] Next, the specific movements of the worktable section 13 during its movement will be explained. Figures 14-17 This is a schematic top view of the workbench assembly 10, showing a further simplified view. Figure 2 The state of the workbench device 10 shown. Figure 14 This is a schematic top view of the worktable device 10 when the worktable section 13 moves in the direction indicated by arrow D1 in the first direction. Figure 15 This is a schematic top view of the worktable device 10 when the worktable section 13 moves in the direction indicated by arrow D2 in the first direction. Figure 16 This is a schematic top view of the worktable device 10 when the worktable section 13 moves in the direction indicated by arrow D3 in the second direction. Figure 17 This is a schematic top view of the worktable assembly 10 when the worktable section 13 moves in the direction indicated by arrow D4 in the second direction. Figures 14-17 In the diagram, the reference line 70a, indicated by a dashed line, represents the reference position of the worktable section 13 in the X direction, and the center line 71a, indicated by a double-dash line, represents the center position of the worktable section 13 in the X direction. Similarly, the reference line 70b, indicated by a dashed line, represents the reference position of the worktable section 13 in the Y direction, and the center line 71b, indicated by a double-dash line, represents the center position of the worktable section 13 in the Y direction. Arrows D1 and D2 are opposite in the first direction (X direction). Arrows D3 and D4 are opposite in the second direction (Y direction).

[0108] First, refer to Figure 14When it is desired to move the worktable section 13 in the direction indicated by arrow D1 in the first direction, for example, the motor 66a is rotated in the positive direction, causing the lead screw shaft 64a to rotate in the positive direction. Then, the first moving part 63a moves in the direction indicated by arrow V1. Alternatively, for example, the motor 66b is rotated in the positive direction, causing the lead screw shaft 64b to rotate in the positive direction. Then, the second moving part 63b moves in the direction indicated by arrow W1. In this way, in the first direction (X direction), the worktable section 13 with a stroke length L1 can be moved in the direction indicated by arrow D1.

[0109] Next, refer to Figure 15 When it is desired to move the worktable section 13 in the direction indicated by arrow D2 in the first direction, for example, the motor 66a is rotated in the opposite direction, causing the lead screw shaft 64a to rotate in the opposite direction. Then, the first moving part 63a moves in the direction indicated by arrow V2. Alternatively, for example, the motor 66b is rotated in the opposite direction, causing the lead screw shaft 64b to rotate in the opposite direction. Then, the second moving part 63b moves in the direction indicated by arrow W2. In this way, in the first direction (X direction), the worktable section 13 with a stroke length L2 can be moved in the direction indicated by arrow D2.

[0110] Next, refer to Figure 16 When it is desired to move the worktable section 13 in the direction indicated by arrow D3 in the second direction, for example, the motor 66a is rotated in the opposite direction, causing the lead screw shaft 64a to rotate in the opposite direction. Then, the first moving part 63a moves in the direction indicated by arrow V3. Alternatively, for example, the motor 66b is rotated in the forward direction, causing the lead screw shaft 64b to rotate in the forward direction. Then, the second moving part 63b moves in the direction indicated by arrow W3. In this way, in the second direction (Y direction), the worktable section 13 with a stroke length L3 can be moved in the direction indicated by arrow D3.

[0111] Next, refer to Figure 17 When it is desired to move the worktable section 13 in the direction indicated by arrow D4 in the second direction, for example, the motor 66a is rotated in the positive direction, causing the lead screw shaft 64a to rotate in the positive direction. Then, the first moving part 63a moves in the direction indicated by arrow V4. Alternatively, for example, the motor 66b is rotated in the opposite direction, causing the lead screw shaft 64b to rotate in the opposite direction. Then, the second moving part 63b moves in the direction indicated by arrow W4. In this way, in the second direction (Y direction), the worktable section 13 with a stroke length L4 can be moved in the direction indicated by arrow D4.

[0112] According to the above-described worktable device 10, by controlling the linear reciprocating motion of the first moving part 63a driven by the first drive unit 61 and the linear reciprocating motion of the second moving part 63b driven by the second drive unit 62, and by utilizing the guidance of the third linear motion mechanism 33 and the fourth linear motion mechanism 34, the worktable part 13 can be moved to any position in the first and second directions on the plane defined by the first and second directions. In this case, the movement of the worktable part 13 in the first direction is guided by the first linear motion mechanism 31, and the movement of the worktable part 13 in the second direction is guided by the second linear motion mechanism 32, enabling the worktable part 13 to move smoothly. Here, the first sliding members 51a and 51b included in the first linear motion mechanism 31 are mounted on the first support surface 15 of the support part 12, and the second guide rails 42a and 42b included in the second linear motion mechanism 32 are mounted on the second support surface 16 of the support part 12. Therefore, the mechanism for moving the worktable part 13 in the first and second directions can be reduced in the direction perpendicular to the base surface 14. Therefore, with such a worktable device 10, a low cross-section of the device can be achieved. That is, with such a worktable device 10, the length in the direction perpendicular to the XY plane, i.e., the Z direction, can be reduced.

[0113] In this embodiment, the first direction and the second direction are orthogonal. Therefore, the movement of the worktable 13 in the aforementioned plane (XY plane) in the first direction and in the second direction can be performed more efficiently.

[0114] In this embodiment, the third and fourth directions are orthogonal. Therefore, the movement of the worktable 13 in the first direction and the movement in the second direction within the aforementioned plane (XY plane) can be performed more efficiently.

[0115] In this embodiment, the first direct-acting mechanism 31 includes a plurality of first guide rails 41a, 41b and a plurality of first sliding members 51a, 51b. Therefore, by utilizing the plurality of first guide rails 41a, 41b and the plurality of first sliding members 51a, 51b, the movement of the worktable section 13 in the first direction can be performed more stably.

[0116] In this embodiment, the second linear motion mechanism 32 includes a plurality of second guide rails 42a, 42b and a plurality of second sliders 52a, 52b. Therefore, by utilizing the plurality of second guide rails 42a, 42b and the plurality of second sliders 52a, 52b, the movement of the worktable section 13 in the second direction can be performed more stably.

[0117] In this embodiment, both the first drive unit 61 and the second drive unit 62 include: ball screws 65a and 65b with screw shafts 64a and 64b; and motors 66a and 66b that rotate the screw shafts 64a and 64b. Therefore, it is easier to more precisely control the linear reciprocating motion of both the first moving part 63a and the second moving part 63b. Consequently, precise positioning of the worktable part 13 can be achieved more easily.

[0118] In this embodiment, the third worktable surface 23 and the fourth worktable surface 24 are orthogonal. Therefore, the movement of the worktable portion 13 in the aforementioned plane (XY plane) in the first direction and in the second direction can be performed more efficiently.

[0119] In this embodiment, the first drive unit 61 and the second drive unit 62 are arranged spaced apart in the second direction. Therefore, the extension direction (X direction) of the cable 68a connected to the first drive unit 61 and the extension direction (X direction) of the cable 68b connected to the second drive unit 62 can be aligned, simplifying the handling of the cables 68a and 68b during installation. This also makes it easier to achieve a lower cross-section for the device.

[0120] In this embodiment, the first direct-acting mechanism may also include a pair of first guide rails and a pair of first sliders. The second direct-acting mechanism may also include a pair of second guide rails and a pair of second sliders. The pair of first guide rails may be arranged in parallel. The pair of second guide rails may be arranged in parallel. The second guide rails may also be orthogonal to the first guide rails. In this way, the loads on the first and second direct-acting mechanisms in the directions orthogonal to the base surface can be appropriately distributed. Therefore, the movement of the worktable in the first and second directions can be controlled more stably.

[0121] In this embodiment, the third worktable surface 23 and the fourth worktable surface 24 extend in a direction perpendicular to the base surface 14, forming the side surfaces of the worktable portion 13. Therefore, the worktable portion 13 can be formed with a simpler structure. Thus, the structure of the worktable device 10 can be further simplified.

[0122] (Implementation Method 2)

[0123] The other implementation method, namely implementation method 2, will be described. Figure 18 This is a schematic perspective view of the workbench device in Embodiment 2 of this disclosure. Figure 19 yes Figure 18 A schematic top view of the workbench assembly shown. Figure 20 yes Figure 18 A schematic side view of the workbench assembly shown. Figure 21 yes Figure 18 A schematic front view of the workbench assembly shown. Figure 22 Is Figure 18 A schematic perspective view of the worktable assembly shown, with the rotary table (described later) removed. Figure 23 yes Figure 22 A schematic top view of the workbench assembly shown. Figure 24 yes Figure 22 A schematic side view of the workbench assembly shown. Figure 25 yes Figure 22 A schematic front view of the workbench assembly shown. Figure 26 This is a schematic perspective view showing the rotary table, described later, included in the worktable assembly. Furthermore, in Figure 19 In the diagram, the reference line 91a before rotation of the rotary table 77 and the mounting part 79 (described later) is indicated by a dashed line.

[0124] The worktable device 17 in Embodiment 2 has a structure that is substantially the same as that in Embodiment 1, and achieves the same effect. However, the difference between the worktable device 17 in Embodiment 2 and Embodiment 1 lies in the structure of the worktable section, which has a structure in which a rotary table mounted on the worktable section can rotate in the XY plane.

[0125] Reference Figures 18-26 The worktable device 17 in Embodiment 2 is similar to that in Embodiment 1, including a base portion 18, a support portion 12, a first direct-acting mechanism 31, a second direct-acting mechanism 32, a third direct-acting mechanism 33, a fourth direct-acting mechanism 34, a first drive portion 61, and a second drive portion 62. The structures of the support portion 12, the first direct-acting mechanism 31, the second direct-acting mechanism 32, the third direct-acting mechanism 33, the fourth direct-acting mechanism 34, the fifth direct-acting mechanism 35, the sixth direct-acting mechanism 36, the first drive portion 61, and the second drive portion 62 in the worktable device 17 are the same as in Embodiment 1. Furthermore, the base portion 18 in the worktable device 17 has the same structure as in Embodiment 1, except that its length in the longitudinal direction (X-direction) is longer than that of the base portion 11 in the worktable device 10 of Embodiment 1.

[0126] The worktable assembly 17 includes a worktable section 19. The worktable section 19 has a structure substantially the same as the worktable section 13 included in the worktable assembly 10 of Embodiment 1, but the structure of the second worktable surface differs from that of the worktable section 13 included in Embodiment 1. The second worktable surface 29 included in the worktable section 19 of the worktable assembly 17 is not only planar but also has a cylindrical recess 73. The recess 73 is located at the center of the second worktable surface 29. The recess 73 is the size of a cylindrical protrusion 74 that can be inserted into the back surface 86 of the rotary table 77 described later. Specifically, the diameter of the recess 73 is configured to be slightly larger than the diameter of the protrusion 74.

[0127] The worktable assembly 17 includes a third drive unit 69, a shaft unit 75, a rotating unit 76, and a rotary table 77. The third drive unit 69 includes a third moving part 63c capable of moving along a third direction intersecting the first direction. The third direction is orthogonal to the first direction (X-direction) and is the same direction as the second direction (Y-direction). The third drive unit 69 causes the third moving part 63c to perform linear reciprocating motion in the third direction (Y-direction). The third drive unit 69 is mounted on the base unit 18 in the same manner as the first drive unit 61 and the second drive unit 62. Specifically, the third drive unit 69 is arranged at a distance from the first drive unit 61 and the second drive unit 62 in the X-direction.

[0128] The third drive unit 69 includes: a ball screw 65c having a screw shaft 64c and a nut 67c; and a motor 66c that rotates the screw shaft 64c. Furthermore, regarding the motor 66c, the substantially rotating part is disposed inside it; reference numeral 66c indicates the frame portion. The same applies to the aforementioned motors 66a and 66b. The nut 67c is mounted on the screw shaft 64c. The third moving part 63c is mounted on the nut 67c. By supplying power to the motor 66c, the rotation shaft of the motor 66c is rotated, thereby rotating the screw shaft 64c. The motor 66c can also rotate the screw shaft 64c in the reverse direction. That is, the motor 66c can rotate the screw shaft 64c in either the forward or reverse direction. A cable 68c, connected to the third drive unit 69 and extending from the side of the motor 66c, extends from the motor 66c in the direction of arrow X.

[0129] The third moving part 63c is block-shaped. A rotating part 76 is mounted on the third moving part 63c. The third moving part 63c includes a seventh linear motion mechanism 37. The seventh linear motion mechanism 37 is mounted on the base part 18 in the same way as the first linear motion mechanism 31. The seventh linear motion mechanism 37 includes: a seventh guide rail 47a extending along the second direction, i.e., the Y direction; and a seventh slider 57a mounted on the seventh guide rail 47a, capable of moving along the second direction, i.e., the Y direction. That is, the seventh guide rail 47a is configured such that its length direction is the Y direction. In this embodiment, only one seventh guide rail 47a is provided and fixed on the base surface 28. The seventh guide rail 47a is provided at intervals in the X direction relative to a pair of first guide rails 41a, 41b on the extension line of the length direction of the first guide rails 41a, 41b. The seventh guide rail 47a extends in a direction orthogonal to the first guide rails 41a, 41b respectively. Guide rail surfaces are provided on both sides of the seventh guide rail 47a in the X direction. These guide rail surfaces are used for the rolling elements, which in this embodiment are balls, to roll.

[0130] The seventh slider 57a, mounted on the seventh guide rail 47a, is capable of moving in the Y direction. The seventh slider 57a can smoothly perform linear reciprocating motion in the Y direction using a plurality of ball bearings disposed between the seventh slider 57a and the guide rail surface of the seventh guide rail 47a. The third moving part 63c is mounted on the seventh slider 57a. When the third moving part 63c performs linear reciprocating motion in the Y direction, it is appropriately guided by the seventh linear motion mechanism 37.

[0131] The shaft portion 75 extends in a direction perpendicular to a plane defined by the first direction and the third direction. In this embodiment, it is provided to extend in a direction perpendicular to the XY plane. The shaft portion 75 is rod-shaped and is a solid cylindrical shape.

[0132] The rotating part 76 is mounted on the third moving part 63c. The rotating part 76 rotates in the XY plane about the center 90 of the rotary table 77. Specifically, the rotating part 76 oscillates about the center 90 as the third moving part 63c moves. This will be explained later. The rotating part 76 includes a circular plate part 88 and a bearing 78 supporting the shaft part 75 (see specifically). Figure 20 The circular plate portion 88 and the shaft portion 75 are integrally connected at one end, specifically the upper end in the Z direction. The bearing 78 is, for example, a rolling bearing, specifically a crossed roller bearing. The rotating portion 76 includes a shaft retaining portion 87. The bearing 78 is disposed in the shaft retaining portion 87, specifically on the inner side of the shaft retaining portion 87. The shaft retaining portion 87 is block-shaped and is mounted and fixed to the side of the third moving portion 63c. A through hole in the Z direction is provided in the shaft retaining portion 87, and the shaft portion 75 and the bearing 78 are disposed in the through hole. The shaft retaining portion 87 is a structure included in the rotating portion 76, but the shaft retaining portion 87 itself does not rotate and performs linear reciprocating motion in the third direction, i.e., the Y direction, together with the third moving portion 63c.

[0133] The rotating part 76 includes a mounting part 79. The mounting part 79 is plate-shaped with the Z-direction as its thickness direction, and includes a long first strip-shaped portion 81 and a second strip-shaped portion 82 extending in a direction orthogonal to the first strip-shaped portion 81. The mounting part 79 is approximately T-shaped when viewed from the thickness direction. The mounting part 79 is mounted on the side 83 of the rotating table 77.

[0134] The rotating part 76 includes an eighth linear motion mechanism 38. The eighth linear motion mechanism 38 is mounted on the mounting part 79. The eighth linear motion mechanism 38 includes an eighth guide rail 48a and an eighth slider 58a, mounted on the eighth guide rail 48a and movable along the eighth guide rail 48a. In this embodiment, only one eighth guide rail 48a is provided and fixed to the lower surface 84 in the mounting part 79. Guide rail surfaces are provided on both sides of the eighth guide rail 48a, which are rolling surfaces for the rolling element, in this embodiment, a ball bearing. The eighth slider 58a is mounted and fixed to the upper surface 89 of the circular plate part 88.

[0135] The eighth guide rail 48a is provided extending radially along the shaft portion 75. The eighth slider 58a, mounted on the eighth guide rail 48a, is capable of moving radially along the shaft portion 75. The eighth slider 58a is capable of smooth linear reciprocating motion along the radial direction of the shaft portion 75 by means of a plurality of balls disposed between the eighth slider 58a and the guide rail surface of the eighth guide rail 48a.

[0136] The rotary table 77 is circular, and its sides are arc-shaped except for the side 83 where the mounting part 79 is installed. The surface 85 of the rotary table 77 is flat. A protrusion 74 is provided on the back side 86 of the rotary table 77 as described above (see specific reference). Figure 26 The rotary table 77 is mounted by inserting a protrusion 74 on the back surface 86 into a recess 73 provided on the second worktable surface 29 of the worktable section 19. The protrusion 74 is inserted into the recess 73 via a rolling bearing (not shown). For example, a crossed roller bearing is used as the rolling bearing. With this structure, the rotary table 77 is rotatably supported by the worktable section 19.

[0137] Next, the action of rotating the rotary table 77 will be explained. Figure 27 This is a schematic perspective view of the worktable device 17, which shows the state in which the rotary table 77 is rotated. Figure 28 yes Figure 27 A schematic top view of the workbench assembly 17 shown. Figure 29 yes Figure 27 A schematic side view of the workbench assembly 17 shown. Figure 30 yes Figure 27 A schematic front view of the worktable assembly 17 is shown. Furthermore, in... Figure 28 The reference line 91b after the rotation of the rotary table 77 and the mounting part 79 is shown in the middle with a dashed line. Figures 27-30 The state after rotating the rotary table 77 by an angle θ relative to the reference line 91a is shown.

[0138] Simultaneously refer to Figures 27-30In the worktable assembly 17, the third drive unit 69 is driven, causing the third moving unit 63c to move in the Y direction. Specifically, the third moving unit 63c moves in the direction indicated by arrow Y. Following the movement of the third moving unit 63c in the direction indicated by arrow Y, the shaft holding unit 87 also moves in the direction indicated by arrow Y. Furthermore, the shaft 75 also moves in the direction indicated by arrow Y. Here, a force is applied to the circular plate unit 88, the eighth direct-acting mechanism 38, and the mounting unit 79, which are integrally formed with the shaft 75, to move in the direction indicated by arrow Y. However, the mounting unit 79 is mounted on the rotary table 77. Additionally, the shaft 75 is supported by the bearing 78 included in the rotating unit 76, and the eighth direct-acting mechanism 38 allows the rotary table 77 to move radially. Therefore, the mounting unit 79 and the eighth direct-acting mechanism 38 do not move in the direction indicated by arrow Y, but instead cause the rotary table 77 to rotate by an angle θ with its center 90 as the rotation center. In this way, the rotary table 77 rotates by an angle θ.

[0139] With this worktable device 17, the rotary table 77 can be rotated in the XY plane, which is defined by the first and third directions. Thus, the worktable section 19 can be moved along the first and second directions, causing the rotary table 77 to rotate. Therefore, greater convenience can be achieved.

[0140] In this embodiment, the third direction is orthogonal to the first direction and is the same as the second direction. Therefore, when the rotary table 77 is rotated, the possibility of interference between the third drive unit 69 and the rotary table 77 can be reduced, and efficient rotation can be achieved.

[0141] In this embodiment, the third drive unit 69 includes a seventh linear motion mechanism 37. The seventh linear motion mechanism 37 includes a seventh guide rail 47a, mounted on the base surface 28 and extending in a third direction; and a seventh slider 57a, mounted on the seventh guide rail 47a and movable in the third direction. The third moving part 63c is mounted on the seventh slider 57a. Therefore, in the third drive unit 69, the third moving part 63c can be smoothly moved in the third direction using the seventh linear motion mechanism 37. Thus, the rotation of the rotary table 77 can be performed more smoothly.

[0142] In this embodiment, the rotating part 76 includes a bearing 78 that supports the shaft part 75. Therefore, the rotation of the rotating part 76 can be performed more smoothly. Therefore, the rotation of the rotary table 77 can be performed more smoothly.

[0143] In this embodiment, the rotating part 76 includes: a mounting part 79 mounted on the side 83 of the rotary table 77; and an eighth linear motion mechanism 38. The eighth linear motion mechanism 38 includes: an eighth guide rail 48a mounted on the mounting part 79 and extending radially along the shaft 75; and an eighth slider 58a mounted on the eighth guide rail 48a, capable of moving radially along the rotary table 77. A third moving part 63c is mounted on the eighth slider 58a. Therefore, the movement of the mounting part 79 can be performed more smoothly. Therefore, the rotary table 77 can be rotated more smoothly.

[0144] (Other implementation methods)

[0145] Furthermore, in the above embodiments, the first and second directions may not be orthogonal. That is, the second direction may be an acute or obtuse angle relative to the first direction. Additionally, the third and fourth directions may also not be orthogonal. That is, the fourth direction may be an acute or obtuse angle relative to the third direction.

[0146] Furthermore, in the above embodiment, when viewed from a direction perpendicular to the base surface, the pair of first guide rails and the pair of second guide rails can be arranged at intervals. Even with such a structure, the loads on the first and second linear actuators in the direction orthogonal to the base surface can be appropriately distributed. Therefore, the movement of the worktable in the first and second directions can be controlled more stably.

[0147] Furthermore, in the above embodiment, at least one of the first drive unit and the second drive unit may include a ball screw with a lead screw shaft and an electric motor that rotates the lead screw shaft. This makes it easier to more precisely control the linear reciprocating motion of at least one of the first and second moving units. Therefore, it is easier to achieve precise positioning of the worktable.

[0148] The embodiments disclosed herein are illustrative in all respects and should be understood as not limiting in any way. The scope of the invention is not limited by the foregoing description but is defined by the claims, which are intended to include all modifications of the same meaning and scope as the claims.

[0149] Explanation of reference numerals in the attached figures

[0150] 10, 17 Workbench assembly; 11, 18 Base section; 12 Support section; 13, 19 Workbench section; 14, 28 Base surface; 15 First support surface; 16 Second support surface; 21 First workbench surface; 22, 29 Second workbench surface; 23 Third workbench surface; 24 Fourth workbench surface; 25 First mounting surface; 26 Second mounting surface; 27 Mounting hole; 31 First direct-acting mechanism; 32 Second direct-acting mechanism; 33 Third direct-acting mechanism; 3 4. Fourth direct-acting mechanism; 35. Fifth direct-acting mechanism; 36. Sixth direct-acting mechanism; 37. Seventh direct-acting mechanism; 38. Eighth direct-acting mechanism; 41a, 41b. First guide rail; 42a, 42b. Second guide rail; 43a. Third guide rail; 44a. Fourth guide rail; 45a. Fifth guide rail; 46a. Sixth guide rail; 47a. Seventh guide rail; 48a. Eighth guide rail; 51a, 51b. First sliding member; 52a, 52b. Second sliding member; 53a. Third sliding member. ; 54a Fourth sliding member; 55a Fifth sliding member; 56a Sixth sliding member; 57a Seventh sliding member; 58a Eighth sliding member; 61 First drive unit; 62 Second drive unit; 63a First moving part; 63b Second moving part; 63c Third moving part; 64a, 64b, 64c Lead screw shaft; 65a, 65b, 65c Ball screw; 66a, 66b, 66c Motor; 67a, 67b, 67c Nut; 6 8a, 68b, 68c cables; 69 third drive unit; 70a, 70b, 91a, 91b reference lines; 71a, 71b center lines; 73 recess; 74 protrusion; 75 shaft; 76 rotating part; 77 rotary table; 78 bearing; 79 mounting part; 81 first strip; 82 second strip; 83 side; 84 lower surface; 85 surface; 86 back; 87 shaft holding part; 88 circular plate part; 89 upper surface; 90 center.

Claims

1. A worktable device, wherein, have: The base portion has a base surface; The first direct-acting mechanism includes: a first guide rail mounted on the base surface and extending along a first direction; and a first slider mounted on the first guide rail and capable of moving along the first direction. The support includes: a first support surface facing the base surface and mounted on the first slider; and a second support surface spaced apart from the first support surface in a direction perpendicular to the base surface; the support is movable together with the first slider along the first direction. The second linear motion mechanism includes: a second guide rail mounted on the second support surface and extending along a second direction intersecting the first direction; and a second slider mounted on the second guide rail and capable of moving along the second direction. The worktable includes: a first worktable surface facing the second support surface and mounted on the second sliding member; a second worktable surface spaced apart from the first worktable surface in a direction perpendicular to the base surface; a third worktable surface intersecting the first worktable surface and the second worktable surface respectively; and a fourth worktable surface intersecting the first worktable surface, the second worktable surface, and the third worktable surface respectively; the worktable is movable together with the second sliding member along the second direction; The third linear motion mechanism includes: a third guide rail mounted on the third worktable and extending along a third direction that intersects the first direction and the second direction respectively; and a third slider mounted on the third guide rail and capable of moving along the third direction. The fourth linear motion mechanism includes: a fourth guide rail, mounted on the fourth worktable and extending along a fourth direction that intersects the first direction, the second direction and the third direction respectively; and a fourth slider, mounted on the fourth guide rail and capable of moving along the fourth direction; A first driving unit includes a first moving part mounted on the third sliding member, which causes the first moving part to perform linear reciprocating motion in the first direction; and The second drive unit includes a second moving part mounted on the fourth slider, which causes the second moving part to perform linear reciprocating motion in the first direction.

2. The workbench device according to claim 1, wherein, The first direction and the second direction are orthogonal.

3. The workbench apparatus according to claim 1 or 2, wherein, The third direction and the fourth direction are orthogonal.

4. The workbench apparatus according to claim 1 or 2, wherein, The first linear motion mechanism includes a plurality of first guide rails and a plurality of first sliding members.

5. The worktable device according to claim 1 or 2, wherein, The second linear motion mechanism includes a plurality of second guide rails and a plurality of second sliding members.

6. The worktable apparatus according to claim 1 or 2, wherein, At least one of the first driving unit and the second driving unit includes: A ball screw, consisting of a screw shaft and a nut; and An electric motor causes the lead screw shaft to rotate.

7. The worktable apparatus according to claim 1 or 2, wherein, The third workbench surface and the fourth workbench surface are orthogonal.

8. The worktable apparatus according to claim 1 or 2, wherein, The first driving unit and the second driving unit are arranged at a distance from each other in the second direction.

9. The worktable apparatus according to claim 1 or 2, wherein, The first linear motion mechanism includes a pair of first guide rails and a pair of first sliding members. The second linear motion mechanism includes a pair of second guide rails and a pair of second sliding members. The first guide rails are arranged in parallel. The pair of second guide rails are arranged in parallel. The second guide rail is orthogonal to the first guide rail.

10. The worktable apparatus according to claim 1 or 2, wherein, The third and fourth worktable surfaces extend in a direction perpendicular to the base surface, forming the side surfaces of the worktable portion.

11. The worktable apparatus according to claim 1 or 2, wherein, The first drive unit includes a fifth linear motion mechanism. The second drive unit includes a sixth direct-acting mechanism. The fifth direct-acting mechanism includes: The fifth guide rail is mounted on the base surface and extends along the first direction; and The fifth sliding member is mounted on the fifth guide rail and is capable of moving along the first direction; The first moving part is mounted on the fifth sliding member. The sixth direct-acting mechanism includes: A sixth guide rail is mounted on the base surface and extends along the first direction; and The sixth sliding member is mounted on the sixth guide rail and is capable of moving along the first direction; The second moving part is mounted on the sixth sliding member.

12. The worktable apparatus according to claim 1 or 2, wherein, It also has: The third drive unit includes a third moving unit capable of moving along a third direction intersecting the first direction, causing the third moving unit to perform linear reciprocating motion in the third direction. The shaft extends along a direction perpendicular to a plane defined by the first direction and the third direction; A rotating part is mounted on the third moving part and rotates about the shaft part as the third moving part moves; as well as A rotary table is disposed on the second worktable, mounted on the rotating part, and is capable of rotating as the third moving part moves.

13. The workbench apparatus according to claim 12, wherein, The third direction is orthogonal to the first direction and is the same as the second direction.

14. The workbench apparatus according to claim 12, wherein, The third drive unit includes a seventh direct-drive mechanism. The seventh direct-acting mechanism includes: The seventh guide rail is mounted on the base surface and extends along the third direction; and The seventh slider is mounted on the seventh guide rail and is capable of moving along the third direction; The third moving part is mounted on the seventh sliding member.

15. The worktable apparatus according to claim 12, wherein, The rotating part includes a bearing that supports the shaft.

16. The worktable apparatus according to claim 12, wherein, The rotating part includes: The mounting part is installed on the side of the rotary table; and Eighth direct-acting mechanism; The eighth direct-acting mechanism includes: The eighth guide rail is mounted on the mounting portion and extends radially along the rotary table; and The eighth sliding member is mounted on the eighth guide rail and is capable of moving radially along the rotary table; The third moving part is mounted on the eighth sliding member.

Images