JP2016175154A - Loader device and manufacturing method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loader device which enables work to be conducted in a short time at low costs even when a stroke of a slider is extended in the loader device included in a machine tool, and to provide a manufacturing method of the loader device.SOLUTION: A loader device 30 includes: a body side rail 41 disposed in a machine tool body 10; body side guides (a first body side guide 42 and a second body side guide 43) which are formed in the body side rail 41 excluding a predetermined length from an end part 41a of the body side rail 41; auxiliary guides (a first auxiliary guide 45 and a second auxiliary guide 46) which are formed in the body side rail 41 so as to extend from the body side guide to an area near the end part of the body side rail 41 and removable from the body side rail 41; and a slider 40 which may move along the body side guides and the auxiliary guides while holding a workpiece W.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a loader device and a method for manufacturing the loader device.

  It is known that a machine tool such as a lathe includes a loader device for transporting a workpiece between a spindle that holds the workpiece to be machined and a workpiece loading / unloading unit. This loader device has a guide formed on a rail arranged in the machine tool main body, and includes a slider that can move along the guide while holding a workpiece, and is provided between the main shaft and the loading / unloading portion. The workpiece is transported (see, for example, Patent Document 1).

  In recent years, it has been proposed to perform different types of machining on workpieces, and machining workpieces using a plurality of machine tools. For example, a machining center including a drilling center and a tapping machine is added around the lathe described above, and a workpiece is machined in each machine tool. In addition, various devices such as a measuring device may be added adjacent to the machine tool. The loader device needs to extend the slider stroke (movable range) in order to allow workpieces to be transferred to and from peripheral devices such as other machine tools and various devices. Usually, when extending the stroke of the slider, the entire rail including the guide is replaced.

JP 2003-136371 A

  However, when exchanging the whole rail, after removing the slider from the rail of the machine tool main body, it is necessary to remove the existing rail from the machine tool main body and attach a new rail. For this reason, not only does the replacement work take time, but a long rail is attached, which increases the burden on the operator. In addition, since a new long rail is required, the cost is increased, and the disposal of the removed rail and the like is also required.

  In view of the circumstances as described above, the present invention provides a loader device provided in a machine tool, and a loader device capable of performing work in a short time and at a low cost even when the slider stroke is extended. The purpose is to provide.

  A loader device according to the present invention includes a main body side rail disposed on a machine tool main body, a main body side guide formed on the main body side rail excluding a predetermined length from an end of the main body side rail, and a main body side guide. An auxiliary guide formed on the main body side rail so as to extend to the vicinity of the end of the main body side rail and removable from the main body side rail, and a slider capable of holding the workpiece and moving along the main body side guide and the auxiliary guide, Prepare.

  In addition, the auxiliary guide may be attached to the main body side rail at a plurality of positions spaced apart from each other. Further, the predetermined length may be set longer than the dimension of the slider. The main body side guide is a first main body side guide and a second main body side guide that are parallel to each other, and the auxiliary guide is a first auxiliary guide and a second main guide that are connected to the first main body side guide and the second main body side guide, respectively. Two auxiliary guides may be used. The first main body side guide and the second main body side guide are formed in different lengths, and the first auxiliary guide and the second auxiliary guide correspond to the first main body side guide and the second main body side guide, respectively. Different lengths may be formed. Further, the distance between the connecting portion of the first main body side guide and the first auxiliary guide and the connecting portion of the second main body side guide and the second auxiliary guide may be set larger than the dimension of the slider. Further, the slider includes a plurality of guide bearings that contact each of the first main body side guide and the second main body side guide with an interval in the traveling direction, and a connection portion of the first main body side guide and the first auxiliary guide; The distance between the second main body side guide and the connecting portion of the second auxiliary guide may be set larger than the width of the guide bearing and smaller than the distance between the guide bearings.

  Further, a loader device according to the present invention includes a main body side rail disposed on the machine tool main body, an extension rail connected to the main body side rail for conveying a workpiece to peripheral devices arranged on the machine tool main body, and a main body The main body side guide formed on the main body side rail excluding a predetermined length from the end of the side rail, the extension guide formed from the extension rail to the main body side rail so as to be connected to the main body side guide, and holding the work And a slider movable along the main body side guide and the extension guide.

  The loader device manufacturing method according to the present invention includes a main body side rail disposed in the machine tool main body, and a main body side guide formed on the main body side rail excluding a predetermined length from the end of the main body side rail. Auxiliary guides that are formed on the main body side rail so as to extend from the main body side guide to the vicinity of the end of the main body side rail and can be detached from the main body side rail, and can be moved along the main body side guide and the auxiliary guide while holding the workpiece The auxiliary guide is removed from the loader device including a slider, the extension rail is connected to the main body side rail, and the main body side guide is connected so as to correspond to peripheral devices arranged on the machine tool main body. Forming an extension guide from the extension rail to the main body side rail.

  According to the present invention, since the auxiliary guide is detachably formed on the main body side rail, the normal stroke of the slider can be secured by the auxiliary guide when the stroke of the slider is not extended. When extending the stroke of the slider, the auxiliary guide is removed, the extension rail is connected to the main body side rail, and the extension guide is formed from the extension rail to the main body side rail. Thus, the stroke of the slider can be extended in a state where the rail connection portion and the guide connection portion are displaced. Thus, it is not necessary to replace the entire main body side rail, and when extending the slider stroke, the work can be performed in a short time and at a low cost.

  In addition, when the auxiliary guide is attached to the main body side rail at a plurality of intervals, it is possible to prevent the auxiliary guide from rotating, and when the extension guide is attached, there is sufficient space on the main body side rail. Since the mounting area is secured, the mounting rigidity and mounting accuracy of the extension guide can be improved. In addition, when the auxiliary guide is set longer than the size of the slider, it is possible to prevent the rail connecting portion and the guide connecting portion from being reached at the same time when the slider is moved. Can disperse vibrations.

  The main body side guide is a first main body side guide and a second main body side guide that are parallel to each other, and the auxiliary guide is connected to the first main body side guide and the second main body side guide, respectively. In the case of the two auxiliary guides, since the slider moves along a plurality of guides, the slider can be moved with high accuracy. The first main body side guide and the second main body side guide are formed in different lengths, and the first auxiliary guide and the second auxiliary guide correspond to the first main body side guide and the second main body side guide, respectively. If the sliders are formed to have different lengths, it is possible to prevent the sliders from reaching the connecting portions of the plurality of guides at the same time, and to disperse the vibration received when the slider passes through the connecting portions. If the distance between the connecting portion of the first main body side guide and the first auxiliary guide and the connecting portion of the second main body side guide and the second auxiliary guide is set larger than the size of the slider, the slider is connected to these. This prevents the slider from passing simultaneously, so that the vibration received by the slider can be dispersed. Further, the slider includes a plurality of guide bearings that come into contact with each of the first main body side guide and the second main body side guide with an interval in the traveling direction, and a connection portion between the first main body side guide and the first auxiliary guide, If the distance between the guide part of the second main body side guide and the second auxiliary guide is set to be larger than the width of the guide bearing and smaller than the distance between the guide bearings, one of the guide bearings contacts the connecting part. In this case, the other guide bearing can be prevented from coming into contact with the connecting portion, and the vibration received by the slider can be dispersed.

  According to the loader device of the present invention, since the extension guide is formed from the extension rail to the main body side rail, the connection portion between the main body side rail and the extension rail, and the connection portion between the main body side guide and the extension guide, This prevents the slider from coming into contact with these connecting portions at the same time, and can disperse the vibration that the slider receives when passing through the connecting portion.

  Further, according to the method for manufacturing the loader device according to the present invention, the extension guide is formed from the extension rail to the main body side rail after connecting the extension rail to the main body side rail and then removing the auxiliary guide. Therefore, it is not necessary to replace the entire rail on the main body side, and the loader device can be manufactured in a short time and at a low cost.

An example of the loader device concerning an embodiment is shown, (A) is a front view and (B) is a top view. The example of the principal part of a loader apparatus is shown, (A) is sectional drawing seen from the X direction, (B) is the front view seen from the Z direction, (C) is a figure which shows a main body side rail. It is a figure which shows an example of the loader apparatus at the time of adding a peripheral device. An example of the connection part of a main body side rail and an extension rail is shown, (A) is the figure seen from the front upper part, (B) is the figure seen from the back lower part. It is a figure which shows an example of the connection part of a main body side guide and an extension guide. It is a figure which shows the other example of the connection part of a main body side guide and an extension guide. (A) And (B) is a figure which shows the other example of the connection part of a main body side guide and an extension guide, respectively. It is a flowchart which shows an example of the manufacturing method of the loader apparatus which concerns on embodiment. The connection part of a main body side guide and an extension guide is shown, (A) is a figure explaining a comparative example, (B) is a figure explaining this embodiment. FIG. 4 shows an example of the operation of the loader device shown in FIG. 3, (A) is a diagram corresponding to the machine tool body, and (B) is a diagram corresponding to a peripheral device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to this. Further, in the drawings, in order to describe the embodiment, the scale is appropriately changed and expressed by partially enlarging or emphasizing the description. In the following drawings, directions in the drawings will be described using an XYZ coordinate system. In this XYZ coordinate system, a plane parallel to the horizontal plane is defined as an XZ plane. An arbitrary direction parallel to the XZ plane is expressed as a Z direction, and a direction orthogonal to the Z direction is expressed as an X direction. The direction perpendicular to the XZ plane is denoted as the Y direction. In each of the X direction, the Y direction, and the Z direction, the direction of the arrow in the figure is the + direction, and the direction opposite to the arrow direction is the − direction.

  FIG. 1 is a diagram illustrating an example of a machine tool 100. 1A is a front view seen from the + Z side, and FIG. 1B is a plan view seen from the + Y side. As shown in FIG. 1, the machine tool 100 includes a machine tool main body 10 and a loader device 30. The machine tool body 10 is, for example, a parallel twin-axis lathe, and includes a processing unit 11 and a workpiece placement unit 12. The processing unit 11 includes main shafts 15 and 16 and turrets 17 and 18. The main shafts 15 and 16 are arranged side by side in the X direction, and can rotate around an axis parallel to the Z direction. Chuckes 13 and 14 having grasping claws 13a and 14a are arranged at the + Z side ends of the main shafts 15 and 16, respectively. The grasping claws 13a and 14a can hold the workpiece W by a chuck driving unit (not shown).

  The turrets 17 and 18 are disposed on the −X side of the main shaft 15 and the + X side of the main shaft 16, respectively. The turrets 17 and 18 are rotatable around an axis parallel to the Z direction. On the peripheral surfaces of the turrets 17 and 18, a plurality of cutting tools (tools) T1 are held. By rotating the turrets 17 and 18, a desired cutting tool T1 is selected. The cutting tool T1 held by the turrets 17 and 18 can be exchanged. As the cutting tool T1, a rotating tool such as a drill or an end mill may be used in addition to a cutting tool for cutting the workpiece W. Further, the turrets 17 and 18 are movable in the X direction and the Z direction by a driving device (not shown).

  A workpiece W to be processed is placed on the workpiece placement unit 12. For example, a fixed table on which a plurality of workpieces W are mounted is used as the workpiece mounting unit 12. However, the workpiece mounting unit 12 is not limited thereto, and a conveyor, a rotary table, or the like may be used.

  The loader device 30 includes a loader head 31 and a loader drive unit 32. The loader device 30 conveys the workpiece W between the workpiece mounting portion 12 and the spindles 15 and 16 described above. The loader head 31 has a loader chuck 33. The loader chuck 33 grips the workpiece W with a plurality of grasping claws 33a. The loader chuck 33 includes a mechanism that can rotate, for example, a posture in which the workpiece W is gripped and oriented in the −Y direction and a posture in the −Z direction (a posture in which the workpiece W is directed to the spindles 15 and 16). ing.

  The loader drive unit 32 includes an X drive unit 34, a Z drive unit 35, and a Y drive unit 36. The X drive unit 34 includes a slider 40 and a main body side rail 41. The main body side rail 41 is formed in a rectangular shape, and is arranged in a state extending in the X direction in the machine tool main body 10. The main body side rail 41 is provided with a first main body side guide (main body side guide) 42 and a second main body side guide (main body side guide) 43. The first main body side guide 42 is disposed on the upper surface (+ Y side surface) of the main body side rail 41. The second main body side guide 43 is disposed on the back surface (the surface on the −Z side) of the main body side rail 41. The first main body side guide 42 and the second main body side guide 43 are each provided in a straight line shape along the X direction, and both are in parallel with each other.

  2A and 2B are views showing the positional relationship between the slider 40 and the main body side rail 41. FIG. As shown in FIG. 2A, the slider 40 is formed in an L shape when viewed from the X direction. The slider 40 is formed to face the upper surface (+ Y side surface) and the back surface (−Z side surface) of the main body side rail 41. 2A and 2B, the slider 40 includes a pair of guide bearings 40a that contact the first body side guide 42 and a pair of guide bearings 40b that contact the second body side guide 43. And. As the guide bearings 40a and 40b, those having a width S in the traveling direction of the slider 40 are used. Further, the guide bearings 40a (40b) are arranged with an interval N in the traveling direction. The guide bearings 40a and 40b have the same dimensions, but may be different. The slider 40 is provided to be movable in the X direction along the first main body side guide 42 and the second main body side guide 43 by a drive source (not shown).

  FIG. 2C is a diagram illustrating the + X side end region TA of the main body side rail 41. As shown in FIG. 2C, the first main body side guide 42 and the second main body side guide 43 are formed on the main body side rail 41 except for a predetermined length from the end 41 a of the main body side rail 41. The first main body side guide 42 is fixed by a plurality of fixing members 44 such as bolts. The fixing members 44 are arranged side by side at a predetermined interval in the X direction. The second main body side guide 43 is also fixed by the fixing member 44. The first main body side guide 42 and the second main body side guide 43 are formed to have different lengths, and the length from the end portion 41 a of the main body side rail 41 is different. In the present embodiment, the length from the end 41a is longer in the first main body side guide 42 than in the second main body side guide 43, but is not limited to this, and the second main body side guide 42 is not limited thereto. 43 may be longer from the end portion 41 a than the first main body side guide 42.

  A first auxiliary guide (auxiliary guide) 45 and a second auxiliary guide (auxiliary guide) 46 are provided in the end region TA of the main body side rail 41. The first auxiliary guide 45 is provided on the upper surface (the surface on the + Y side) of the main body side rail 41. The first auxiliary guide 45 is formed corresponding to the first main body side guide 42. The first auxiliary guide 45 is disposed on the + X side of the first main body side guide 42, is in contact with the + X side end of the first main body side guide 42, and extends to the vicinity of the end 41 a of the main body side rail 41. Has been. By connecting the first auxiliary guide 45 to the first main body side guide 42, both are configured as one guide. The first auxiliary guide 45 is fixed to the main body side rail 41 by a fixing member 44. The first auxiliary guide 45 is attached by a plurality of fixing members 44 (for example, two places in FIG. 2C). For this reason, the first auxiliary guide 45 is secured in mounting rigidity and restricted in rotation.

  The second auxiliary guide 46 is provided on the back surface (the surface on the −Z side) of the main body side rail 41. The second auxiliary guide 46 is formed corresponding to the second main body side guide 43. The second auxiliary guide 46 is disposed on the + X side of the second main body side guide 43 and is formed so as to contact the + X side end of the second main body side guide 43 and extend to the vicinity of the end 41 a of the main body side rail 41. Has been. By connecting the second auxiliary guide 46 to the second main body side guide 43, both are configured as one guide. Further, the second auxiliary guide 46 may be attached at a plurality of positions by the fixing member 44 in the same manner as the first auxiliary guide 45.

  By attaching the first auxiliary guide 45 and the second auxiliary guide 46, the slider 40 can also move in the end region TA of the main body side rail 41, and extends over the entire length (the length in the X direction) of the main body side rail 41. Stroke is secured. Moreover, instead of using the guide bearings 40a, 40b, the slider 40 may use other forms of bearings, rollers, or the like.

  The first auxiliary guide 45 and the second auxiliary guide 46 are formed to have different lengths. In the present embodiment, the length from the + X side end portion of the first main body side guide 42 to the end portion 41a of the main body side rail 41 is longer than that of the second main body side guide 43. Is longer than the second auxiliary guide 46. When the length from the + X side end of the second main body side guide 43 to the end 41a of the main body side rail 41 is longer than the first main body side guide 42, the second auxiliary guide 46 is the first. It becomes longer than the auxiliary guide 45.

  Returning to FIG. 1, the Z drive unit 35 is formed on the slider 40. The Z driving unit 35 has a Z moving body 35a. The Z moving body 35a is provided so as to be movable in the Z direction along a guide portion (not shown) by a drive source (not shown). The Y drive part 36 is formed in the Z moving body 35a. The Y drive unit 36 includes a Y moving body 36a. The Y moving body 36a is provided so as to be movable in the Y direction along a guide portion (not shown) by a drive source (not shown).

  The loader head 31 is provided below the Y moving body 36a. The workpiece W gripped by the loader chuck 33 of the loader head 31 is driven by the X drive unit 34, the Z drive unit 35, and the Y drive unit 36, respectively, so that the X direction, the Z direction, the Y direction, or these are combined. Conveyed in the direction. The operation of the loader device 30 is comprehensively controlled by the control unit CONT. Further, the control unit CONT comprehensively controls the operation of the machine tool main body 10 based on a predetermined machining program.

  Although the control part CONT manages the stroke which the slider 40 can move as the above-mentioned 1st auxiliary guide 45 and the 2nd auxiliary guide 46 were attached to the main body side rail 41, it is not limited to this. For example, a sensor capable of recognizing the presence of the first auxiliary guide 45 and the second auxiliary guide 46 is provided in a part of the machine tool body 10, and the control unit CONT receives the first auxiliary guide 45 and the like by the output of the sensor. The stroke of the slider 40 may be determined by recognizing that there is.

  In the above-described machine tool 100, a measuring device that measures the dimensions and the like of the processed workpiece W, a processing device that performs different types of processing on the workpiece W, etc., adjacent to the existing machine tool body 10 Has been done. Examples of the processing apparatus added to the machine tool main body 10 include a machining center including a drilling center and a tapping machine. FIG. 3 is a diagram illustrating an example of a machine tool 100A in which a peripheral device 20 such as a machining center is added to the machine tool main body 10.

  As shown in FIG. 3, when the peripheral device 20 is added to the machine tool main body 10, the workpiece W needs to be transportable between the machine tool main body 10 and the peripheral device 20. Therefore, the loader device 30 is manufactured to have a configuration in which the stroke is extended so that at least the slider 40 can move between the machine tool main body 10 and the peripheral device 20. In this specification, the manufacture of the loader device 30 is used in the meaning including the operation of extending the stroke of the slider 40 with respect to the existing loader device 30.

  In the present embodiment, as illustrated in FIG. 3, the extension portion 50 is connected to the + X side of the loader device 30. The extension portion 50 includes a column part 51, an extension rail 52, a first extension guide (extension guide) 53, and a second extension guide (extension guide) 54. The extension rail 52 is supported by the column portion 51 and is disposed above the peripheral device 20 so as to be substantially along the X direction. Note that whether or not the extension rail 52 is supported by the column portion 51 is arbitrary.

  The extension rail 52 is connected to the + X side of the main body side rail 41 in order to transport the workpiece W to the peripheral device 20. The extension rail 52 is formed in a rectangular shape, and the dimension in the Y direction and the Z direction is substantially equal to that of the main body side rail 41. Therefore, in a state where the extension rail 52 is connected to the main body side rail 41, the upper surface (+ Y side surface) and the rear surface (-Z side surface) of the extension rail 52 are the same as the upper surface and the rear surface of the main body side rail 41, respectively. Become. Note that the extension rail 52 is not limited to the one having dimensions in the Y direction and the Z direction substantially equal to those of the main body side rail 41. For example, an L-shaped member that is flush with the upper surface and the rear surface of the main body side rail 41 may be used as the extension rail.

  4A and 4B are perspective views illustrating an example of a connection portion between the main body side rail 41 and the extension rail 52. FIG. 4A is a view as seen from above the front, showing the front (+ Z side surface) and the upper surface (+ Y side surface) of the connecting portion. FIG. 4B is a view as seen from below the back surface, and shows the back surface (the surface on the −Z side) and the bottom surface (the surface on the −Y side) of the connection portion.

  As shown in FIGS. 4A and 4B, the main body side rail 41 and the extension rail 52 are connected by a plurality of connecting members 61 at the rail connecting portion C. Each of the connecting members 61 is a plate-like member. The connecting member 61 is disposed on each of the three surfaces of the main body side rail 41 and the extension rail 52 on the + Y side surface, the + Z side surface, and the −Y side surface. 41 and the extension rail 52, respectively. Thereby, the main body side rail 41 and the extension rail 52 are firmly connected. The means for connecting the main body side rail 41 and the extension rail 52 is not limited to using the connecting member 61. For example, the end of the extension rail 52 may be fitted into the main body side rail 41 and the overlapped portion may be fixed with a bolt or the like. Further, the extension rail 52 is not limited to be connected to the end portion 41a of the main body side rail 41, and may be connected to the main body side rail 41 with a gap between the end portion 41a. Good.

  FIG. 5 is a plan view showing an example of connection between the main body side guide and the extension guide. In addition, illustration of the connection member 61 is abbreviate | omitted in FIG. As shown in FIG. 5, the first extension guide 53 and the second extension guide 54 are provided from the extension rail 52 to the end region TA of the main body side rail 41. The first extension guide 53 is disposed on the + Y side surfaces of the main body side rail 41 and the extension rail 52. The first extension guide 53 is formed linearly along the X direction and is connected to the first main body side guide 42 at the first connection portion C1. Thereby, the 1st main body side guide 42 and the 1st extension guide 53 are constituted as one guide.

  The first extension guide 53 is connected in contact with the first main body side guide 42. Thereby, when the slider 40 passes the 1st connection part C1, it can avoid giving a vibration to the slider 40. FIG. Further, the portion of the first extension guide 53 on the −X side enters the end region TA and is attached. Therefore, as shown in FIG. 5, the first connection portion C <b> 1 is set at a position separated from the end portion 41 a of the main body side rail 41 by the length L in the −X direction. As a result, the rail connection portion C and the first connection portion C1 are shifted in the X direction.

  Further, as shown in FIG. 5, the length L is set to be larger than the dimension W of the slider 40 in the X direction. Therefore, when the slider 40 moves in the X direction, it is possible to prevent the guide bearings 40a and 40b of the slider 40 from simultaneously contacting the rail connecting portion C and the first connecting portion C1. Thereby, the vibration received when the slider 40 passes the rail connection part C and the 1st connection part C1 can be disperse | distributed.

  The second extension guide 54 is disposed on the −Z side surface of the main body side rail 41 and the extension rail 52. The second extension guide 54 is formed linearly along the X direction and is connected to the second main body side guide 43 at the second connection portion C2. Thereby, the 2nd main body side guide 43 and the 2nd extension guide 54 are comprised as one guide. The second extension guide 54 is connected in contact with the second main body side guide 43. Further, the −X side portion of the second extension guide 54 enters and is attached to the end region TA, but is set to a different length from the end 41 a of the main body side rail 41 with respect to the first extension guide 53. ing. As a result, the second connection portion C2 is set at a position separated from the first connection portion C1 by a distance M in the + X direction. The distance M is set larger than the width S of the guide bearings 40a and 40b. Thereby, when the slider 40 moves, it can prevent that the guide bearing 40a (or 40b) contacts the 1st connection part C1 and the 2nd connection part C2 simultaneously, and the vibration given to the slider 40 can be disperse | distributed.

  Further, the positional relationship between the rail connection portion C, the first connection portion C1, and the second connection portion C2 is not limited to the contents shown in FIG. FIG. 6 shows another example of the positional relationship between the connection portions. As shown in FIG. 6, the distance M1, which is the distance between the first connection portion C1 and the second connection portion C2, is set to be larger than the distance M shown in FIG. However, the distance M1 is set to be smaller than the interval N between the guide bearings 40a and 40b. That is, both the above-described distance M (FIG. 5) and distance M1 (FIG. 6) are set to be larger than the width S of the guide bearings 40a and 40b and smaller than the interval N between the guide bearings 40a and 40b.

  Accordingly, as shown in FIG. 6, when the slider 40 moves, for example, the guide bearing 40a (or 40b) in the front in the traveling direction and the guide bearing 40b (or 40a) in the rear in the traveling direction are simultaneously connected to the first connecting portion. Contact with C1 or the second connection portion C2 can be prevented, and vibration applied to the slider 40 can be dispersed.

  FIGS. 7A and 7B show another example of the positional relationship between the connection portions. As shown in FIG. 7A, the length (L1-M1) between the rail connection portion C and the second connection portion C2 may be set to be larger than the dimension W in the X direction of the slider 40. . According to this configuration, when the slider 40 moves in the X direction, the guide bearings 40a and 40b can be prevented from simultaneously contacting the rail connection portion C and the second connection portion C2. In the example shown in FIG. 7A, since the distance between the first connection portion C1 and the second connection portion C2 is set to the distance M, the guide bearings 40a and 40b are connected to the first connection portion C1 and the second connection. Simultaneous contact with the part C2 is prevented. In FIG. 7A, the distance M may be set to the distance M1 in FIG.

  Further, as shown in FIG. 7B, the distance M2 in the X direction between the first connecting portion C1 and the second connecting portion C2 is larger than the dimension W in the X direction of the slider 40, and the second connecting portion. The length (L2-M2) between C2 and the rail connection portion C may be set to be larger than the dimension W in the X direction of the slider 40. At this time, the length L2 from the rail connecting portion C to the first connecting portion C1 (from the end portion 41a of the main body side rail 41) is twice or more the dimension W in the X direction of the slider 40. According to this configuration, when the slider 40 moves in the X direction, the guide bearings 40a and 40b are prevented from simultaneously contacting two or more of the rail connection portion C, the first connection portion C1, and the second connection portion C2. be able to. Thereby, the vibration received from each connection part when the slider 40 moves to a X direction can be disperse | distributed further finely.

  Next, the manufacturing method of the loader apparatus 30 provided with the extension part 50 as mentioned above is demonstrated. FIG. 8 is a flowchart illustrating an example of a method for manufacturing the loader device 30. The peripheral device 20 may be installed either before or after the loader device 30 is manufactured. As shown in FIG. 8, first, the first auxiliary guide 45 and the second auxiliary guide 46 are removed from the main body side rail 41 of the loader device 30 in the state shown in FIG. 1 (step S01). The first auxiliary guide 45 and the like can be easily removed by removing bolts and the like, and since it is not necessary to remove the slider 40, the work can be performed in a short time. Moreover, since the removed first auxiliary guide 45 and second auxiliary guide 46 have small dimensions, storage and disposal are easy.

  Next, the extension rail 52 is connected to the main body side rail 41 so as to be compatible with the peripheral device 20 (step S02). The length of the main body side rail 41 in the X direction is determined corresponding to the peripheral device 20. Further, the alignment is performed between the main body side rail 41 and the extension rail 52 so that the + Y side surface and the −Z side surface are the same surface. Then, the main body side rail 41 and the extension rail 52 are connected using the connection member 61 (refer FIG. 4). Alternatively, the extension rail 52 may be supported by the column portion 51 (see FIG. 3) in advance and then connected to the main body side rail 41.

  Next, the first extension guide 53 and the second extension guide 54 are formed so as to be connected to the first main body side guide 42 and the second main body side guide 43, respectively (step S03). The first extension guide 53 and the second extension guide 54 are disposed from the extension rail 52 to the end region TA of the main body side rail 41, and are fixed to the extension rail 52 and the main body side rail 41 by a plurality of fixing members 44. . Thereby, the stroke of the slider 40 is extended to a range where the first extension guide 53 and the second extension guide 54 are formed.

  Thus, since the loader device 30 with the extended stroke of the slider 40 is manufactured using the existing main body side rail 41, the first main body side guide 42, and the second main body side guide 43, the work can be performed in a short time. Is completed, and the burden on the operator can be reduced because there is no need to handle heavy objects. Moreover, since the length of the extension rail 52, the first extension guide 53, and the second extension guide 54 to be prepared may be the length corresponding to the extension portion 50, the manufacturing cost can be reduced as compared with replacing the entire rail. .

  FIGS. 9A and 9B are diagrams illustrating a case where the extension rail is inclined with respect to the main body side rail. FIG. 9A shows a comparative example, in which the first main body side guide 142 and the second main body side guide 143 are formed up to the end portion 141 a of the main body side rail 141, and the first extension to the end portion of the extension rail 152 is performed. A guide 153 and a second extension guide 154 are formed. In this comparative example, as shown in FIG. 9A, when the extension rail 152 is inclined with respect to the main body side rail 141, not only a gap is generated in the rail connection portion C3, but also the first connection portion C4 and the second connection portion. A gap is also generated between the guides in the portion C5. If the slider 40 moves in this state, it will receive a large vibration by the gaps of the first connection part C4 and the like, which may affect the workpiece W being conveyed. In order to avoid such a situation, conventionally, a loader manufacturing method in which the main body side rail 141 is not extended and the main body side rail 141 is removed and replaced with a new long rail is employed.

  On the other hand, in the present embodiment, as shown in FIG. 9B, the first extension guide 53 and the second extension guide 54 are attached over the end region TA of the main body side rail 41. Thereby, even when the extension rail 52 is inclined with respect to the main body side rail 41, a gap is generated in the rail connection portion C, but the first extension guide 53 and the second extension guide 54 are curved in the rail connection portion C. Is still in a continuous state. For this reason, the slider 40 can be moved smoothly by the first extension guide 53 and the second extension guide 54 in the rail connection portion C, and the vibration applied to the slider 40 is suppressed.

  Next, the operation of the machine tool 100A in which the peripheral device 20 is added to the machine tool body 10 will be described. The following operations are performed according to instructions from the control unit CONT. Further, the following operation is an example, and the present invention is not limited to this operation. 10A and 10B show an example of the operation of the loader device 30 shown in FIG. 3. FIG. 10A shows a state in which the loader device 30 corresponds to the machine tool main body 10, and FIG. 10B shows the loader device 30 in the peripheral device 20. It is a figure of the state corresponding to.

  First, as illustrated in FIG. 10A, the loader device 30 conveys the workpiece W of the workpiece mounting unit 12 to the spindle 15 (or the spindle 16) of the processing unit 11 of the machine tool body 10. Subsequently, after cutting the workpiece W in the processing unit 11, the loader device 30 receives the workpiece W that has been processed or is being processed from the spindle 15 and transports it to the peripheral device 20. At this time, the slider 40 of the loader device 30 moves along the first extension guide 53 and the second extension guide 54 from the first main body side guide 42 and the second main body side guide 43. Since the rail connection portion C and the first connection portion C1 are displaced as described above (see FIG. 5 and the like), the slider 40 does not contact the rail connection portion C and the first connection portion C1 at the time of movement. . Furthermore, since the first connection portion C1 and the second connection portion C2 are displaced, the slider 40 does not pass through the first connection portion C1 and the second connection portion C2 at the same timing. As a result, the slider 40 can disperse vibration during movement and can stably transport the workpiece W.

  Next, as shown in FIG. 10B, after the loader device 30 transports the workpiece W to the peripheral device 20, if the peripheral device 20 is a machine tool, for example, the workpiece W is further processed. . Further, when the peripheral device 20 is, for example, a measurement device, a measurement process is performed on the dimensions of the workpiece W and the like. After the processing by the peripheral device 20 is completed, the loader device 30 receives the workpiece W from the peripheral device 20 and transports the workpiece W to a workpiece carry-out unit (for example, the workpiece placement unit 12).

  Note that the workpiece W received from the peripheral device 20 may be conveyed again to the machine tool body 10 and processed again. Further, the slider 40 of the loader device 30 moves from the first extension guide 53 and the second extension guide 54 along the first main body side guide 42 and the second main body side guide 43. The point which can convey W stably is the same as that of the above.

  The embodiment has been described above, but the present invention is not limited to the above description, and various modifications can be made without departing from the gist of the present invention. For example, in the above-described embodiment, the loader device 30 has been described using the configuration using one slider 40 as an example, but the present invention is not limited to this. For example, a configuration in which two or more sliders 40 are provided may be used. In this case, each slider 40 includes a loader head 31 that can hold the workpiece W. The control unit CONT may perform control so that the sliders 40 do not interfere with each other, such as setting the stroke of each slider 40 individually.

  In the above-described embodiment, the configuration of the two first main body side guides 42 and the second main body side guide 43 is described as an example of the main body side guide, but the present invention is not limited to this, and the main body side guide is not limited thereto. 1 or 3 or more may be provided. When there is one main body side guide, for example, the main body side rail 41 may be provided on the upper surface (the surface on the + Y side). Further, the two first main body side guides 42 and the second main body side guides 43 are not limited to be formed on the upper surface and the rear surface of the main body side rail 41, respectively. The first main body side guide 42 and the second main body side guide 43 may be provided.

  In the above-described embodiment, the configuration in which the peripheral device 20 is disposed on the + X side of the machine tool main body 10 as illustrated in FIG. 3 is described as an example. However, the present invention is not limited to this. The peripheral device 20 may be disposed on the −X side of the main body 10, and the peripheral device 20 may be disposed on both the + X side and the −X side of the machine tool main body 10. In this case, the extension rail 52 corresponding to the peripheral device 20 to be arranged is used.

  Further, in FIG. 10, the aspect in which the workpiece W after being processed by the machine tool main body 10 is conveyed to the peripheral device 20 has been described as an example. However, the embodiment is not limited thereto. The workpiece W may be processed by the peripheral device 20 and then conveyed to the machine tool body 10.

  W ... Work C ... Rail connection C1 ... First connection C2 ... Second connection L, L1, L2 ... Length 10 ... Machine tool body 20 ... Peripheral device 30 ... Loader device 40 ... Slider 40a, 40b ... Guide bearing DESCRIPTION OF SYMBOLS 41 ... Main body side rail 41a ... End 42 ... First main body side guide (main body side guide) 43 ... Second main body side guide (main body side guide) 44 ... Fixing member 45 ... First auxiliary guide (auxiliary guide) 46 ... First 2 Auxiliary guide (auxiliary guide) 50 ... Extension portion 52 ... Extension rail 53 ... First extension guide (extension guide) 54 ... Second extension guide (extension guide) 61 ... Connecting member 100, 100A ... Machine tool

Claims (9)

A main body side rail disposed in the machine tool main body,
A main body side guide formed on the main body side rail excluding a predetermined length from the end of the main body side rail;
An auxiliary guide formed on the main body side rail so as to extend from the main body side guide to the vicinity of the end of the main body side rail, and removable from the main body side rail;
A loader device comprising: a slider that holds a workpiece and is movable along the main body side guide and the auxiliary guide.   The loader device according to claim 1, wherein the auxiliary guide is attached to the main body side rail at a plurality of positions spaced apart from each other.   The loader device according to claim 1, wherein the predetermined length is set longer than a dimension of the slider. The main body side guide is a first main body side guide and a second main body side guide which are parallel to each other,
4. The auxiliary guide according to claim 1, wherein the auxiliary guide is a first auxiliary guide and a second auxiliary guide connected to the first main body side guide and the second main body side guide, respectively. 5. Loader device. The first main body side guide and the second main body side guide are formed in different lengths,
The loader device according to claim 4, wherein the first auxiliary guide and the second auxiliary guide are formed to have different lengths corresponding to the first main body side guide and the second main body side guide, respectively.   The distance between the connecting portion of the first main body side guide and the first auxiliary guide and the connecting portion of the second main body side guide and the second auxiliary guide is set larger than the size of the slider. The loader device described. The slider includes a plurality of guide bearings that come into contact with each of the first main body side guide and the second main body side guide at intervals in the traveling direction,
The distance between the connecting portion of the first main body side guide and the first auxiliary guide and the connecting portion of the second main body side guide and the second auxiliary guide is larger than the width of the guide bearing and the guide bearing. The loader device according to claim 5, wherein the loader device is set smaller than an interval between them. A main body side rail disposed in the machine tool main body,
An extension rail connected to the main body side rail to convey a workpiece to peripheral devices arranged in the machine tool main body,
A main body side guide formed on the main body side rail excluding a predetermined length from the end of the main body side rail;
An extension guide formed from the extension rail to the main body side rail so as to connect to the main body side guide;
A loader device comprising: a slider that holds the workpiece and is movable along the main body side guide and the extension guide. A main body side rail disposed on the machine tool main body, a main body side guide formed on the main body side rail excluding a predetermined length from an end of the main body side rail, and the main body side rail to the main body side rail. An auxiliary guide formed on the main body side rail so as to extend to the vicinity of the end portion and removable from the main body side rail; a slider capable of holding the workpiece and moving along the main body side guide and the auxiliary guide; Removing the auxiliary guide from a loader device comprising:
Connecting an extension rail to the main body side rail so as to correspond to peripheral devices arranged in the machine tool main body;
Forming an extension guide from the extension rail to the main body side rail so as to be connected to the main body side guide.

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