JP3720231B2 - Shaft arrangement method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shaft arrangement method, and more particularly, to a shaft arrangement method suitable for use in arranging a shaft that movably supports an object such as a carriage.
[0002]
[Prior art]
Conventionally, as a mechanism for movably supporting an object such as a carriage in a predetermined direction, a mechanism using a linear guide and a rolling bearing is known, for example.
[0003]
Specifically, when the linear guide is disposed in a predetermined direction, the carriage is supported by the linear guide via a rolling bearing, and the carriage is energized by driving the motor, the carriage is moved along the linear guide. Move in the direction.
[0004]
However, according to the mechanism as described above, parts such as a linear guide are costly. If the linear guide is mounted on the apparatus, the manufacturing cost increases, and the apparatus must be expensive. There was a problem.
[0005]
Furthermore, since the rolling bearing is a component that is easily affected by dust, for example, when the above method is used in a cutting apparatus that cuts the workpiece by a cutting means such as a cutter, a cut piece of the workpiece Since the dust-proofing of the rolling bearing against the above is extremely difficult, there is a problem that the rolling bearing may be adversely affected by dust such as a cut piece of the workpiece.
[0006]
As a method for solving such a problem, a mechanism using a shaft and a sliding bearing instead of a linear guide and a rolling bearing is known.
[0007]
Specifically, when the shaft is arranged in a predetermined direction, the carriage is supported on the shaft via a slide bearing, and the carriage is urged by driving the motor, the carriage moves in the predetermined direction along the shaft. Is.
[0008]
This mechanism using a shaft and a sliding bearing can be used in a cutting device and is inexpensive because it does not use a linear guide, but in order to reduce the sliding resistance between the shaft and the sliding bearing. However, there is a problem in that a sufficient clearance between the shaft and the sliding bearing must be ensured, resulting in design limitations.
[0009]
On the other hand, when the clearance between the shaft and the sliding bearing is not sufficiently secured and the clearance between the sliding bearing and the shaft is small, the sliding resistance between the sliding bearing and the shaft is increased, and a sufficient motor・ Torque is required, and high-torque motors with large motor torque are expensive, so mounting such high-torque motors on equipment increases manufacturing costs and makes the equipment expensive. A new problem was to arise.
[0010]
In the above-described mechanism, when two shafts are arranged in a predetermined direction between the support members, and the carriage supported by the two shafts via the slide bearing is moved by the driving force of the motor. In this case, the two shafts must be arranged accurately in a predetermined direction, that is, in parallel within a certain parallelism range.
[0011]
However, in reality, the range of the certain parallelism is exceeded due to an error caused by component accuracy and the like, and the two shafts are not arranged in parallel to each other, but slip with the two shafts. A large sliding resistance was generated by friction with the bearing.
[0012]
For this reason, sufficient motor torque is required, and if a high torque motor is mounted on the apparatus, there is a problem that the manufacturing cost increases and the apparatus becomes expensive.
[0013]
[Problems to be solved by the invention]
The present invention has been made in view of the problems of the conventional techniques as described above, and an object thereof is to support an object such as a carriage movably without using a high torque motor. The two shafts that are arranged in parallel in a predetermined direction according to the movement of the object can reduce the manufacturing cost of the device in which the two shafts are arranged. It is an object of the present invention to provide a method for arranging a shaft.
[0014]
[Means for Solving the Problems]
  In order to achieve the above object, the invention according to claim 1 of the present invention is such that two shafts arranged in a predetermined direction between support members are arranged along the axial direction of the two shafts. In the shaft disposing method in which the two shafts are disposed when the object is movably supported, at least one of the two shafts has an opening formed in the supporting member. Is urged against the plane of the opening by the urging means, and is slidable on the plane against the urging force of the urging means. The rhombus-shaped opening formed in the support member is penetrated and arranged so as to be positioned at a V-shaped corner of the rhombus-shaped opening.
[0015]
Therefore, according to the first aspect of the present invention, at least one of the two shafts is positioned on the plane of the opening formed in the support member, and the biasing means. Is urged against the plane of the opening, but is movable on the plane against the urging force of the urging means, so that the slide of the one shaft on the plane is Errors caused by component accuracy and the like are absorbed, and the two shafts can be arranged in parallel within a certain parallelism range.
[0016]
For this reason, the occurrence of a large sliding resistance due to friction between the two shafts and the object is avoided, and the object can be moved along the two shafts without using a high torque motor or the like. Therefore, the apparatus in which the two shafts are arranged can be made inexpensive.
[0017]
According to a second aspect of the present invention, in the first aspect of the present invention, the object supported by the two shafts is a shaft of the two shafts according to a predetermined driving force. When moving along the direction, the one shaft is slid on the plane of the opening so as to approach or separate from the other shaft against the urging force of the urging means, and Two shafts are positioned in parallel.
[0018]
Therefore, according to the second aspect of the present invention, when the object supported by the two shafts moves along the axial direction of the two shafts according to a predetermined driving force, The one shaft is slid on the plane of the opening so that the one shaft approaches or separates from the other shaft against the urging force of the urging means, and the two shafts are positioned in parallel. Therefore, errors such as component accuracy are absorbed by the slide, and the two shafts can be arranged in parallel within a certain parallelism range.
[0019]
  Further, in the invention according to claim 1 or 2 as in the invention according to claim 3 of the present invention, the biasing means is a coil spring, and the other shaft The fixing means may be fixed by a hook spring.
[0020]
Further, as in the invention described in claim 4 of the present invention, in the invention described in claim 1, claim 2, or claim 3, the one shaft is a cylindrical body. It may be.
[0021]
In this way, the frictional resistance between the shaft and the plane against which the shaft is pressed is reduced, and the shaft can slide on the plane more smoothly.
[0022]
Further, in the invention according to any one of claims 1, 2, 3, or 4, as in the invention according to claim 5, the object is a sliding bearing. And may be supported so as to be movable along the axial direction of the two shafts.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of a shaft arranging method according to the present invention will be described in detail with reference to the accompanying drawings.
[0024]
FIG. 1 shows a schematic configuration explanatory diagram of a cutting apparatus in which an example of an embodiment of a shaft arranging method according to the present invention is implemented.
[0025]
The cutting apparatus 10 includes a fixed base member 12, side members 14L and 14R disposed at right and left ends of the base member 12 and orthogonal to the base member 12, and two left and right side members 14L and 14R. The rear member 16 to be connected and the two rails 18-extending on the base member 12 in the Y-axis direction (refer to the reference diagram showing the coordinate system in FIG. 1) and arranged in parallel with each other. 1 and 18-2, a table 20 disposed on the two rails 18-1 and 18-2 so as to be movable in the Y-axis direction, and the Y-axis direction between the left and right side members 14L and 14R. A front shaft 22 and a rear shaft extending in the orthogonal X-axis direction (refer to a reference diagram showing a coordinate system in FIG. 1) and arranged in parallel to each other to connect the left and right side members 14L and 14R. 2 In addition, the front shaft 22 and the rear shaft 24 are fixedly arranged on a wire (not shown) which is arranged to be movable in the X-axis direction via a slide bearing and parallel to the rear member 16. The provided carriage 28 and the carriage 28 extend in the X-axis direction and the Z-axis direction orthogonal to the Y-axis direction (refer to the reference diagram showing the coordinate system in FIG. 1) and are arranged in parallel to each other. The right shaft 30 and the left shaft 32, the support member 34 disposed on the right shaft 30 and the left shaft 32 via a slide bearing so as to be movable in the Z-axis direction, and the table 20 are supported. And a cutter 36 fixedly disposed on the member 34.
[0026]
In addition, this cutting device 10 shall be controlled by the microcomputer about the whole operation | movement including drive control of a motor (not shown).
[0027]
Further, the three-dimensional workpiece 100 is fixedly placed on the table 20.
[0028]
The carriage 28 is disposed on the front shaft 22 and the rear shaft 24 so as to be movable in the X-axis direction via sliding bearings. More specifically, the wire (not shown) is fixedly disposed on the wire (not shown) by driving the wire (not shown) by a predetermined driving force of a motor (not shown) controlled by a microcomputer. The carriage 28 moves in the X-axis direction via a sliding bearing along the axial direction of the front shaft 22 and the rear shaft 24 which are two shafts in accordance with the driving of the wire (not shown). is there.
[0029]
The front shaft 22 and the rear shaft 24 are inserted tightly into the inner diameter side of the sliding bearing disposed in the carriage 28.
[0030]
Similar to the carriage 28, the support member 34 is disposed on the right shaft 30 and the left shaft 32 through a sliding bearing so as to be movable in the Z-axis direction. By a predetermined driving force of a motor (not shown) to be controlled, the support member 34 moves along the right shaft 30 and the left shaft 32, which are two shafts, in the Z-axis direction via a sliding bearing. .
[0031]
The right shaft 30 or the left shaft 32 is inserted tightly into the inner diameter side of the slide bearing disposed on the support member 34.
[0032]
The cutter 36 is driven by a motor (not shown) controlled by a micro computer to cut the workpiece 100.
[0033]
The front shaft 22 and the rear shaft 24 disposed in parallel with each other in the X-axis direction, and the right shaft 30 and the left shaft 32 disposed in parallel with each other in the Z-axis direction are all cylindrical bodies. .
[0034]
Here, FIGS. 2 (a) and 2 (b) show a partially enlarged view as viewed in the direction of arrow A in FIG. 1, and FIG. 2 (a) shows a front shaft disposed on the side members 14L and 14R. 22 and the rear shaft 24 are shown, and in FIG. 5B, the front opening 40 formed in the side members 14L and 14R._left, 40_rightAnd rear opening 50_left, 50_rightIs shown.
[0035]
FIG. 3 is an explanatory view schematically showing a state in which the front shaft 22, the rear shaft 24, the right shaft 30, and the left shaft 32 are disposed.
[0036]
The front shaft 22 is a rectangular front opening 40 formed in each of the left and right side members 14L and 14R._left, 40_rightThrough the front opening 40._left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightIt is designed to be positioned above (see FIG. 2B and FIG. 3).
[0037]
At this time, the front shaft 22 is connected to the front opening 40._left, 40_rightFront side surface portion 40b_left40b_rightAnd the side part 40d on the rear side_left40d_rightAnd upper surface portion 40c._left40c_rightAnd a predetermined gap.
[0038]
The front opening 40_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightHave the same height in the Z-axis direction.
[0039]
And the front opening 40_left, 40_rightA coil spring 42 as a biasing means is provided at the end 22a of the front shaft 22 passing through_left, 42_rightOne end of the coil spring 42 is locked._left, 42_rightThe other end of the front opening 40 in the Z-axis direction_left, 40_rightThe locking screw 44 located below_left44_right(See FIG. 2A).
[0040]
This coil spring 42_left, 42_rightHas an urging force (spring force) in the contraction (compression) direction._left, 42_rightThe forward shaft 22 is urged in the direction indicated by the arrow C in FIG. 2B, that is, the downward direction in the Z-axis direction by the urging force (spring force) of the_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightIt is pressed on and pressed.
[0041]
Further, the coil spring 42_left, 42_rightThe magnitude of the urging force (spring force) can withstand the cutting load when the cutter 36 cuts the workpiece 100 in the cutting apparatus 10 and the carriage according to a predetermined driving force of a motor (not shown). When 28 moves along the front shaft 22 and the rear shaft 24, the coil spring 42_left, 42_rightThe front opening 40 so that the front shaft 22 approaches or separates from the rear shaft 24 against the biasing force (spring force) of_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightSuppose that it is set to slide on.
[0042]
That is, the front shaft 22 has a coil spring 42._left, 42_rightIs pulled in the direction of gravity (in the direction of arrow C in FIG. 2 (b) and on the base member 12 side of the cutting apparatus 10) with a spring force sufficient to withstand the cutting load. Withstand the cutting load of the cutting at the time of cutting, the front opening 40_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightTherefore, the rigidity of the front shaft 22 required for cutting is maintained.
[0043]
On the other hand, when the carriage 28 moves in the X-axis direction along the front shaft 22 and the rear shaft 24 according to a predetermined driving force of a motor (not shown), the carriage 28 is supported by the front shaft 22 and the rear shaft 24. Depending on the position of the carriage 28 in the X-axis direction, the front shaft 22 has a front opening 40._left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightIt slides in the direction of arrow B (see FIG. 2B).
[0044]
That is, the front shaft 22 has a coil spring 42._left, 42_rightThus, the coil spring 42 is positioned while cutting._left, 42_rightFront opening 40 against the urging force of_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightThe upper part is slidable and is arranged so as not to be completely fixed to the side members 14L, 14R.
[0045]
In the present specification, the “state in which the shaft is arranged so as not to be completely fixed in a slidable state” is appropriately referred to as a “semi-fixed state”.
[0046]
On the other hand, the rear shaft 24 has a rhombus-shaped rear opening 50 formed in each of the left and right side members 14L and 14R._left, 50_rightThrough the rear opening 50._left, 50_rightV-shaped corner 50a on the lower side of the_left50a_right(Refer to FIG. 2B).
[0047]
And the rear opening 50_left, 50_rightThe end portion 24a of the rear shaft 24 penetrating the shaft has a hook spring 52._left, 52_rightIs wound, and the saddle spring 52_left, 52_rightThe both ends of each are fixing screws 54_left, 54_right, 56_left, 56_right(See FIG. 2A).
[0048]
Accordingly, the rear shaft 24 has a saddle spring 52._left, 52_rightBy the corner 50a_left50a_rightAnd are arranged so as to be completely fixed to the side members 14L, 14R.
[0049]
The front opening 40_left, 40_rightAnd rear opening 50_left, 50_rightAnd the front opening 40, respectively._left, 40_rightFront shaft 22 and rear opening 50 penetrating through_left, 50_rightThe right and left two side members 14L and 14R are sized and drilled so that the rear shaft 24 penetrating through the rear shaft 24 is positioned in parallel on the same height plane in the Z-axis direction.
[0050]
Next, as described above, the right shaft 30 and the left shaft 32 extend in the Z-axis direction and are arranged in parallel with each other, and the right shaft 30 includes the above-described front shaft 22 and the left shaft. The shaft 32 has a structure common to the rear shaft 24 described above.
[0051]
Accordingly, the right shaft 30 is provided with a coil spring 62 as an urging means._top62_bottomThe right opening 60 with a spring force sufficient to withstand the cutting load._top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomIs pulled in a direction perpendicular to the extending direction (in the direction of arrow E in FIG. 3 and on the rear member 16 side of the cutting device 10), the cutting load of the cutting when the cutter 36 cuts the workpiece 100. Withstand the right opening 60_top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomTherefore, the rigidity of the right shaft 30 necessary for cutting is maintained.
[0052]
On the other hand, when the support member 34 moves along the right shaft 30 and the left shaft 32 in the Z-axis direction according to a predetermined driving force of a motor (not shown), the support member 34 is supported by the right shaft 30 and the left shaft 32. Depending on the position of the support member 34 in the Z-axis direction, the right shaft 30 has the right opening 60._top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomIt slides in the direction of arrow D (see FIG. 3).
[0053]
That is, the right shaft 30 has a coil spring 62._top62_bottomThus, the coil spring 62 is positioned while being cut._top62_bottomRight opening 60 against the urging force of_top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomThe upper part is slidable, and is arranged in a semi-fixed state so as not to be completely fixed to the carriage 28.
[0054]
On the other hand, in the same manner as the rear shaft 24, the left shaft 32 has two upper and lower left openings 70 formed in the carriage 28._top70_bottomThe left opening 70 of the rhombus_top70_bottomV-shaped corner 70a on the rear side of the_top70a_bottom(Refer to FIG. 3).
[0055]
And the left opening 70_top70_bottomThe end 32a of the left shaft 32 that passes through_top, 72_bottomIs wound, and the saddle spring 72_top, 72_bottomBy the corner 70a_top70a_bottomIs arranged so as to be completely fixed to the carriage 28.
[0056]
The right opening 60_top, 60_bottomAnd left opening 70_top70_bottomAnd right opening 60, respectively._top, 60_bottomRight shaft 30 and left opening 70 penetrating through_top70_bottomThe left shaft 32 penetrating therethrough is sized and drilled in the carriage 28 so as to be positioned in parallel on the same height plane in the Y-axis direction.
[0057]
In the above configuration, when the workpiece 100 is cut by the above-described cutting apparatus 10, the driving of the motor is controlled according to predetermined data based on the control of the micro computer, and the predetermined driving of the motor is performed. By the driving force, the support member 34 on which the cutter 36 is fixedly moved is moved in the Z-axis direction along the right shaft 30 and the left shaft 32, and the carriage 28 is moved along the front shaft 22 and the rear shaft 24. The table 20 on which the workpiece 100 is disposed is moved in the Y-axis direction along the two rails 18-1 and 18-2.
[0058]
As a result, the workpiece 100 is cut by the cutter 36 in accordance with predetermined data.
[0059]
At this time, as described above, the two shafts of the front shaft 22 and the rear shaft 24 arranged in parallel to the side members 14L and 14R are accurately parallel to each other due to errors caused by component accuracy. If not disposed, the front shaft 22 disposed in a semi-fixed state is moved by the coil spring 42 as the carriage 28 moves._left, 42_rightAgainst the biasing force of the front opening 40_left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightSlide up in the Y-axis direction (FIG. 2 (b) and FIG. 3 arrow B direction).
[0060]
As a result, the front opening portion 40 is arranged so that the front shaft 22 is close to or separated from the rear shaft 24 so as to be parallel to each other._left, 40_rightFlat surface 40a of the bottom surface of_left40a_rightSince the slide is performed above, an error caused by component accuracy or the like is absorbed, and the two shafts are arranged in parallel within a certain parallelism range.
[0061]
For this reason, it is avoided that a large sliding resistance due to friction between the two shafts of the front shaft 22 and the rear shaft 24 and the carriage 28 is generated, and the carriage 28 can be moved without using a high torque motor or the like. It can move along the front shaft 22 and the rear shaft 24.
[0062]
The coil spring 42 disposed on the front shaft 22 is also provided._left, 42_rightHas an urging force sufficient to withstand the cutting load when the cutter 36 cuts the workpiece 100. Therefore, when the cutter 36 cuts the workpiece 100, the front shaft 22 has a cutting load. Thus, the cutting accuracy of the workpiece 100 can be maintained.
[0063]
On the other hand, as in the case of the front shaft 22 and the rear shaft 24 in the X-axis direction described above, the right shaft 30 and the left shaft 32 arranged in parallel with each other on the carriage 28 in the Z-axis direction as described above. If the two shafts are not arranged in parallel with each other due to an error caused by component accuracy or the like, the right shaft 30 arranged in a semi-fixed state as the support member 34 moves. However, the coil spring 62_top62_bottomAgainst the urging force of the right opening 60_top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomSlide up in the X-axis direction (arrow D direction in FIG. 3).
[0064]
As a result, the right opening 30 is arranged so that the right shaft 30 is close to or separated from the left shaft 32 so as to be parallel to each other._top, 60_bottomFlat surface 60a of the bottom surface of_top60a_bottomSince the slide is made upward, errors caused by component accuracy and the like are absorbed, and the two shafts are arranged in parallel within a certain parallelism range.
[0065]
For this reason, it is avoided that a large sliding resistance due to friction between the two shafts of the right shaft 30 and the left shaft 32 and the support member 34 occurs, and the support member is used without using a high torque motor or the like. 34 can be moved along the right shaft 30 and the left shaft 32.
[0066]
The coil spring 62 disposed on the right shaft 30 is also provided._top62_bottomHas an urging force sufficient to withstand the cutting load when the cutter 36 cuts the workpiece 100. Therefore, when the cutter 36 cuts the workpiece 100, the right shaft 30 has a cutting load. Thus, the cutting accuracy of the workpiece 100 can be maintained.
[0067]
As described above, in the cutting apparatus 10 that realizes the shaft arrangement method according to the present invention, the front shaft 22 is connected to the coil spring 42 in the X-axis direction._left, 42_rightThe rear shaft 24 is disposed in a semi-fixed state that is slidable against the urging force of the shaft, and the rear shaft 24 is disposed in a completely fixed state._top62_bottomSince the left shaft 32 is disposed in a semi-fixed state that is slidable against the urging force caused by the movement of the carriage 28, the front shaft 22 and the rear shaft 24 are moved together with the movement of the carriage 28. Further, as the support member 34 moves, the right shaft 30 and the left shaft 32 can be easily arranged in parallel within a certain parallelism range. A large sliding resistance is generated by friction between the two shafts and the sliding bearing of the carriage 28 and between the two shafts of the right shaft 30 and the left shaft 32 and the sliding bearing of the support member 34. Therefore, it is not necessary to mount a high-torque motor on the cutting device 10, and the cutting device 10 can be made inexpensive.
[0068]
Further, according to the configuration of the cutting device 10 described above, the front shaft 22, the rear shaft 24, the right shaft 30, and the left shaft 32 are inserted tightly into the inner diameter side of the slide bearing. It is not necessary to secure a sufficient clearance between the two, and there is no design limitation.
[0069]
Further, in the cutting device 10 described above, instead of the linear guide and the rolling bearing, a shaft (front shaft 22, rear shaft 24, right shaft 30 and left shaft 32) and a sliding bearing which are less expensive than the linear guide are provided. The use of the linear guide avoids that the cutting device 10 is expensive and that it is not necessary to protect against dust such as a cutting piece of the workpiece 100 like a rolling bearing. be able to.
[0070]
Furthermore, in the above-described cutting device 10, the rear of the two shafts, the front shaft 22 and the rear shaft 24 that are arranged in parallel with each other in the X-axis direction, increases the load on the structure of the cutting device 10. Since the shaft located on the side, that is, the rear shaft 24 close to the rear member 16 is completely fixed, the workpiece 100 can be cut in a more stable state, and the cutting of the workpiece 100 is performed. Accuracy can be maintained.
[0071]
Further, in the above-described cutting apparatus 10, rattling due to an error caused by component accuracy or the like can be absorbed by the movement of the front shaft 22 and the right shaft 30, and thus is disposed in the cutting apparatus 10. Even when the component accuracy is slightly reduced, the cutting accuracy of the workpiece 100 in the cutting apparatus 10 is within the range in which the decrease in the component accuracy is eliminated by the movement of the front shaft 22 and the right shaft 30. Can be maintained.
[0072]
Further, in the above-described cutting apparatus 10, rattling due to an error caused by component accuracy or the like can be absorbed by the movement of the front shaft 22 and the right shaft 30. Therefore, when the cutting apparatus 10 is assembled, The work for confirming the balance between the various parts constituting the cutting apparatus 10 is not necessary, and the work efficiency of the assembling work of the cutting apparatus 10 can be improved.
[0073]
Moreover, in the above-described cutting apparatus 10, since the front shaft 22 and the right shaft 30 are cylindrical bodies, the front shaft 22 and the front opening 40 against which the front shaft 22 is pressed._left, 40_rightFlat surface 40a of the bottom surface of_{le ft}40a_rightOr the right opening 30 to which the right shaft 30 and the right shaft 30 are pressed_top, 60_bottommtFlat surface 60a of the bottom surface of_top60a_bottom, And the front shaft 22 and the right shaft 30 are more smoothly connected to the bottom surface plane 40a._left40a_right60a_top60a_bottomYou can slide up.
[0074]
Specifically, in the cutting apparatus as described above, in the case of the conditions as shown in FIG. 4A, that is, the front shaft 22 (right shaft 30) and the front opening 40._left, 40_right(Right opening 60_top, 60_bottom) Side part 40b_left40b_right(Side portion 60b_top60b_bottom) Is approximately 1 mm, and the side surface portion 40d_left40d_right(Side portion 60d_top60d_bottom) And the upper surface portion 40c._left40c_right(Upper surface portion 60c_top60c_bottom) Can be eliminated in the range of about 0.1 to 0.05 mm.
[0075]
The embodiment described above may be modified as described in the following (1) to (7).
[0076]
(1) In the above-described embodiment, the front opening 40_left, 40_right(Right opening 60_top, 60_bottom) Is formed in a rectangular shape, but it is not limited to this. For example, it is formed in a semicircular shape as shown in FIG. In other words, that is, the bottom surface plane 40a ′ where the front shaft 22 (right shaft 30) is located._left, 40a ’_right(Flat surface 60a 'of the bottom surface portion_top, 60a ’_bottom).
[0077]
(2) In the above-described embodiment, the right shaft 30 is disposed in a semi-fixed state and the left shaft 32 is completely fixed and disposed in the Z-axis direction. Of course, the left shaft 32 may be arranged in a semi-fixed state and the right shaft 30 may be arranged completely fixed.
[0078]
(3) In the above-described embodiment, the front shaft 22 and the right shaft 30 are disposed in a semi-fixed state, while the rear shaft 24 and the left shaft 32 are disposed completely fixed. Of course, the present invention is not limited to this, and the front shaft 22 and the right shaft 30 may be disposed in a semi-fixed state, and the rear shaft 24 or the left shaft 32 may be disposed in a semi-fixed state. .
[0079]
(4) In the above-described embodiment, the cylindrical shafts (front shaft 22, rear shaft 24, right shaft 30, and left shaft 32) are used. However, the present invention is not limited to this. For example, a prismatic body shaft may be used, and the prismatic body shaft may be arranged in a semi-fixed state.
[0080]
(5) In the above-described embodiment, the shaft disposing method according to the present invention is realized in the cutting apparatus 10, but it is not limited to this. For example, in the printing apparatus The shaft that supports the print head may be fixed by the shaft disposing method according to the present invention.
[0081]
(6) In the above-described embodiment, the coil spring 42 is used as the urging means._left, 42_right62_top62_bottomHowever, the present invention is not limited to this. For example, various springs such as a disc spring and a leaf spring, and other elastic bodies can be used.
[0082]
(7) You may make it combine the above-mentioned embodiment and the modification shown in said (1) thru | or (6) suitably.
[0083]
【The invention's effect】
Since the present invention is configured as described above, two shafts that movably support an object such as a carriage without using a high-torque motor are provided in accordance with the movement of the object. As a result of being arranged in parallel in the direction, there is an excellent effect that the manufacturing cost of the device in which the two shafts are arranged can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic configuration explanatory view showing an example of a cutting apparatus in which an example of an embodiment of a shaft arranging method according to the present invention is implemented, and a reference view showing a coordinate system thereof.
FIG. 2 is a partially enlarged view taken along arrow A in FIG. 1, wherein (a) is an explanatory view showing a front shaft and a rear shaft disposed on the side member, and (b) is a side member. It is explanatory drawing which shows the front opening part and back opening part which were pierced in, and the reference drawing which shows the coordinate system.
FIG. 3 is an explanatory diagram schematically showing a state in which a front shaft, a rear shaft, a right shaft, and a left shaft are arranged, and a reference diagram showing a coordinate system thereof.
FIG. 4A is an explanatory view showing specific conditions of a shaft disposing method according to the present invention, and FIG. 4B shows another embodiment of a shaft disposing method according to the present invention. It is explanatory drawing.
[Explanation of symbols]
10 Cutting device
12 Base member
14L, 14R Side member
16 Rear member
18-1, 18-2 rail
20 tables
22 Front shaft
22a end
24 Rear shaft
24a end
28 Carriage
30 Right shaft
30a end
32 Left shaft
32a end
34 Support members
36 cutter
40_left, 40_right            Front opening
40a_left40a_right        Bottom plane
40b_left40b_right40d_left40d_rightSide part
40c_left40c_rightTop surface
42_left, 42_right62_top62_bottom       Coil spring
44_left44_right, 64_top, 64_bottom       Locking screw
50_left, 50_right            Rear opening
50a_left50a_right        Corner
52_left, 52_right, 72_top, 72_bottom       Saddle spring
54_left, 54_right, 56_left, 56_right74_top74_bottom76_top76_bottom                Fixing screw
60_top, 60_bottommt           Right opening
60a_top60a_bottom       Bottom plane
60b_top60b_bottom60d_top60d_bottomSide part
60c_top60c_bottomTop surface
70_top70_bottom           Left opening
70a_top70a_bottom       Corner
100 Workpiece

Claims (5)

When the object is movably supported along the axial direction of the two shafts by the two shafts arranged in a predetermined direction between the support members, the shaft of the two shafts is arranged. In the arrangement method,
At least one shaft of said two shafts, as well as positioned on the plane of the opening that is formed in the support member, is biased to the plane of the opening by a biasing means, wherein It is slidable on the plane against the biasing force of the biasing means ,
The other shaft passes through a rhombus-shaped opening formed in the support member, and is disposed so as to be positioned at a V-shaped corner of the rhombus opening. Method. The shaft disposition method according to claim 1,
When the object supported by the two shafts moves along the axial direction of the two shafts according to a predetermined driving force, the one of the ones against the biasing force of the biasing means. A shaft arrangement method in which a shaft is slid on the plane of the opening so as to approach or separate from the other shaft, and the two shafts are positioned in parallel. In the shaft arrangement method according to any one of claims 1 and 2,
The biasing means is a coil spring ;
The other shaft fixing means is a shaft arrangement method in which the other shaft fixing means is fixed by a saddle spring . In the shaft arrangement method according to any one of claims 1, 2 and 3,
The said one shaft is the arrangement | positioning method of the shaft which is a cylindrical body. In the shaft arrangement method according to any one of claims 1, 2, 3, and 4,
A method of arranging a shaft, wherein the object is supported movably along an axial direction of the two shafts via a sliding bearing.

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