JP5597035B2 - Work rest - Google Patents

Description

  The present invention relates to a work rest for supporting a long object to be processed.

  In the process of obtaining a long cutting tool such as a drill or a reamer, the cutting tool is ground with a grindstone. At the time of this grinding process, for example, as shown in FIG. 1 or FIG. 6 of Patent Document 1, the cutting tool is held at the tip of the shank part by the chuck and supported by the work rest. Is done.

  When performing the grinding process, it is necessary to accurately position the cutting tool. When the positioning accuracy is low, grinding is performed on a portion different from the original portion to be machined, so that the machining accuracy of the blade portion is reduced. When cutting is performed using a cutting tool having such a blade portion, the processing accuracy at this time is low.

  Therefore, attempts have been made to improve the positioning accuracy of the cutting tool. For example, in Patent Document 2, a translation component for performing translational movement, a first rotation component for rotating along a vertical plane, and a second rotation for rotating along a horizontal plane Work rests (rest devices) having components have been proposed. According to Patent Document 2, as described above, it is possible to perform position adjustment with extremely high accuracy and high resolution by using a deformable component having a considerable frequency division.

JP-A-62-4564 Special table 2008-535684 gazette

  In the case of a long object such as a cutting tool, the tip of one end is inevitably pinched by the chuck in a slightly inclined state. Further, the tip of the other end may be bent downward in the vertical direction due to its own weight. For these reasons, the problem that it is not easy to make the longitudinal direction of a long object coincide with the horizontal direction has become apparent.

  It is considered that by supporting the long object on the work rest, the longitudinal direction of the long object coincides with the horizontal direction. However, when the support part itself of the work rest does not extend along the horizontal direction, it is difficult to make the longitudinal direction of the long object coincide with the horizontal direction.

  The present invention has been made to solve the above-described problems, and it is easy to make the longitudinal direction of a long object coincide with the horizontal direction, and for this purpose, the original part to be processed is accurately processed. The purpose is to provide a work rest that is possible.

In order to achieve the above object, the present invention provides a work rest that supports the long object from below when processing a long object whose one end is held by a holding unit of a processing device .
A height direction position adjustment stage having a vertical movement table that moves along the vertical direction and is close to the elongated object ;
Is supported by the vertical movement table, the vertical displacement of the vertical direction following the displacement of the vertical movement table to Rutotomoni, a swingable swing table so as to be inclined against the horizontal direction An angle adjustment stage having ;
Wherein said supported on the oscillating table, the following the oscillation of the oscillating table against horizontally to swing to Rutotomoni, the long object is a groove extending along the longitudinal direction are formed of A support member for supporting the long object by accommodating the long object in the groove ;
Equipped with a,
The longitudinal angle relative to the horizontal direction of the long product, is adjusted by the oscillating table is swung toward the vertical direction, the Rukoto substantially aligned in the longitudinal direction of the long object in a horizontal direction Features.

  In the height direction position adjustment stage, the vertical movement table follows the minute feed and moves along the vertical direction. Therefore, the vertical position of the vertical movement table can be adjusted with high accuracy.

  The angle adjustment stage tilts or swings as the table follows the minute feed. Accordingly, the angle formed by the table with respect to the horizontal direction can be accurately adjusted.

  As can be understood from the above, by configuring the work rest so as to include the height direction position adjustment stage and the angle adjustment stage, the height direction position of the long object supported by the support member by the work rest, and It becomes possible to adjust the angle with respect to the horizontal direction with high accuracy. That is, it becomes easy to adjust the position in the height direction, and it becomes easy to make the longitudinal direction of the long object coincide with the horizontal direction, so that the long object can be easily positioned after all.

  Therefore, since it becomes easy to process the original part which should process in a long thing, the processing precision with respect to a long object improves. For this reason, a workpiece with good dimensional accuracy can be obtained.

  The angle adjustment stage can be constituted by a gonio stage, for example. By swinging the swing table of the gonio stage, it is possible to easily adjust the angle of the support member provided on the swing table, and thus the long object supported by the support member, with respect to the horizontal direction.

The work rest further vertical movement table while supporting, be further included a horizontal position you adjust the horizontal direction position adjusting stage of elongated article by the horizontal moving table which moves along the horizontal direction Good. In this case, the horizontal movement table follows the minute feed and moves along the horizontal direction. Therefore, the horizontal position of the horizontal movement table, and thus the horizontal position of the long object can be adjusted with high accuracy.

  The horizontal position adjustment stage can be constituted by, for example, an XY axis stage. In this case, it is possible to move the horizontal movement table, and thus the long object, in any direction in the horizontal direction and in two horizontal directions orthogonal to the above direction only by the XY axis stage.

  The horizontal position adjustment stage may be an X-axis stage. In this case, the horizontal movement table of the X-axis stage, that is, the long object is moved in any direction in the horizontal direction. Then, the X-axis stage itself may be moved in the horizontal direction orthogonal to the direction in which the horizontal movement table moves (the direction in which the height direction position adjustment stage is displaced).

  In the present invention, the work rest is configured to include the height direction position adjustment stage and the angle adjustment stage. The height direction position adjustment stage makes it possible to accurately adjust the height direction position of the long object supported by the support member, while the angle adjustment stage accurately adjusts the angle of the long object with respect to the horizontal direction. Since it is possible to adjust well, it becomes easy to make the longitudinal direction of the long object coincide with the horizontal direction.

  As described above, since it becomes possible to easily position the long object, it becomes easy to process the original part to be processed. As a result, the processing accuracy for a long product is improved, and a workpiece with good dimensional accuracy can be obtained.

  Therefore, when the long object is a cutting tool, the processing accuracy at the time of cutting using the cutting tool is improved.

It is a principal part schematic side view of the grinding processing apparatus comprised including the work rest which concerns on embodiment of this invention. It is a whole schematic perspective view of the work rest of FIG. It is a principal part side surface schematic diagram which shows typically the rocking | fluctuation operation | movement of the rocking | fluctuation table which comprises a gonio stage. It is a principal part enlarged side view which shows the state which adjusted the angle with respect to the perpendicular direction of the drill (elongate thing) inclined vertically downward by rocking | fluctuating a rocking | fluctuating table. It is a principal part enlarged side view which shows the state which adjusted the angle with respect to the perpendicular direction of the drill (elongate thing) inclined vertically upward by rocking | fluctuating a rocking | fluctuating table. It is a whole schematic perspective view of the work rest which concerns on another embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a work rest according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic side view of a main part of a grinding apparatus 12 configured to include a work rest 10 according to the present embodiment. The grinding device 12 includes a chuck 16 for holding a drill 14 (long object) as a workpiece, and a grinding wheel 18 for grinding the drill 14 in addition to the work rest 10. In the drill 14, the tip end of the shank portion 20 is held by the chuck 16, and the tip end of the blade portion 22 is supported by the work rest 10 from below, and in this state, grinding is performed by the grinding wheel 18.

  In this case, the work rest 10 includes an XY axis stage 24 that is positioned and fixed on a base 23 that constitutes the grinding apparatus 12, a Z axis stage 26 that is disposed on the XY axis stage 24, and the Z axis. A gonio stage 28 disposed on the stage 26 and a support member 32 disposed on the gonio stage 28 and having a V-shaped groove 30 formed thereon.

  As shown in FIGS. 1 and 2, the XY axis stage 24 is a horizontal position adjusting stage for moving both the upper Z axis stage 26 and the gonio stage 28 along the horizontal direction.

  More specifically, the XY axis stage 24 includes a horizontal movement table 34, a first horizontal movement knob 36, and a second horizontal movement knob 38. When the operator rotates the first horizontal movement knob 36, the horizontal movement table 34 moves in a direction toward or away from the chuck 16 (arrow X direction). On the other hand, when the second horizontal movement knob 38 is rotated, the horizontal movement table 34 moves in an arrow Y direction (see FIG. 2) orthogonal to the arrow X direction. Since the Z-axis stage 26 is connected to the horizontal movement table 34, the Z-axis stage 26 and the gonio stage 28 follow the movement of the horizontal movement table 34 along the arrow X direction or the arrow Y direction in this way. The support member 32 and the drill 14 move integrally with the horizontal movement table 34 along the arrow X direction or the arrow Y direction.

  The Z-axis stage 26 forms a height direction position adjustment stage for moving the gonio stage 28 along the arrow Z direction, that is, the vertical direction (height direction). The Z-axis stage 26 has a vertical movement table 40 and a vertical movement knob 42. When an operator rotates the vertical movement knob 42, the vertical movement table 40 is directed in the arrow Z direction, which is the vertical direction. Then move. Along with this, the gonio stage 28 connected to the vertical movement table 40, and thus the support member 32 and the drill 14 move along the arrow Z direction integrally with the vertical movement table 40.

  The gonio stage 28 has a swing table 44 and a swing knob 46. As shown in FIG. 3, when the operator rotates the swing knob 46, the swing table 44 swings about a point O located above the swing table 44 as a swing center. By this swing, the support member 32 connected to the swing table 44 swings integrally, and as a result, the support member 32 forms a predetermined angle with respect to the horizontal direction. As can be understood from this, the gonio stage 28 functions as an angle adjustment stage that adjusts the angle of the support member 32 and consequently the drill 14 supported by the support member 32 with respect to the horizontal direction.

  When a vertical line L is drawn vertically downward from the point O and the intersection of the vertical line L and the swing table 44 is a point A, the length H from the point O to the point A varies. This is the swing center height of the moving table 44.

  The XY axis stage 24, the Z axis stage 26, and the gonio stage 28 are well known, and therefore detailed description thereof is omitted. As these stages 24, 26, and 28, there are various advantages such as following a minute feed accurately and exhibiting high rigidity, and therefore, a cross roller type is preferable. It is not limited.

  The support member 32 has a substantially rectangular parallelepiped shape, and a lower end surface thereof is coupled to the swing table 44 of the gonio stage 28. On the other hand, as described above, the V-shaped groove 30 having a V-shaped cross section is formed in the upper end surface facing vertically upward along the longitudinal direction.

  The work rest 10 according to the present embodiment is basically configured as described above. Next, the function and effect will be described in relation to the operation of the grinding apparatus 12.

  The grinding process for the drill 14 using the grinding apparatus 12 described above is performed as follows.

  First, the tip of the shank portion 20 of the drill 14 is clamped by the chuck 16. Thereafter, the work rest 10 is brought close to the blade portion 22 of the drill 14. At this time, the vertical movement table 40 of the Z-axis stage 26 is set to be positioned below the drill 14 such as the lowest point. The swing table 44 of the gonio stage 28 is set at a position where the vertical line L is formed between the point O and the point A shown in FIG.

  During this approach, the first horizontal movement knob 36 and the second horizontal movement knob 38 of the XY axis stage 24 constituting the work rest 10 are appropriately rotated by the operator. Thereby, the horizontal movement table 34 moves along the arrow X direction and the arrow Y direction shown in FIGS. 1 and 2, and as a result, the gonio stage in which the support member 32 is connected to the vertical movement table 40 of the Z-axis stage 26. It moves so that it may be located below the blade part 22 of the drill 14 in one with 28. FIG. Of course, depending on the position of the drill 14, it may not be necessary to move the horizontal movement table 34 in either the arrow X direction or the arrow Y direction or both.

  Next, the worker rotates the vertical movement knob 42 to move the vertical movement table 40 so as to be directed vertically upward. Along with this movement, the gonio stage 28 and the support member 32 move vertically upward, and the side wall of the blade portion 22 contacts the side wall of the V-shaped groove 30 of the support member 32.

  At this time, when the side wall of the blade portion 22 is in contact with the side wall of the V-shaped groove 30 over the entire longitudinal direction, it can be determined that the longitudinal direction of the drill 14 substantially coincides with the horizontal direction. In this case, it is not particularly necessary to swing the swing table 44 of the gonio stage 28 from the initial position. That is, the adjustment angle of the swing table 44 is 0 °.

  On the other hand, when the drill 14 is inclined so that the tip of the blade portion 22 is below the shank portion 20 as shown in FIG. 4, only the tip side of the blade portion 22 is on the side wall of the V-shaped groove 30. Abut.

  In such a case, the operator rotates the swing knob 46 to swing the swing table 44 from the initial position in the direction of the arrow S1 in FIG. Of course, the swing table 44 swings about the point O in FIG. 3 as the swing center.

  With this swinging, the tip of the blade portion 22 is displaced vertically upward. On the other hand, the position of the shank portion 20 is unchanged. This is because the shank portion 20 is held by the chuck 16. That is, the drill 14 swings at a predetermined angle with the tip of the shank portion 20 held by the chuck 16 as the swing center. In FIG. 4, the swing angle of the swing table 44 and the swing angle θ1 of the drill 14 are exaggerated so that it is easy to grasp that the drill 14 swings. The moving angle is about 3 ° at the maximum, and the rocking angle θ1 of the drill 14 when the rocking knob 46 is rotated by one scale is about 35 ″ to 55 ″.

  In the process of swinging the drill 14 in this manner, the height direction positions of the blade portion 22 and the shank portion 20 come into substantially coincident contact with each other. By confirming this with an angle sensor or the like (not shown), it can be recognized that the longitudinal direction of the drill 14 is substantially coincident with the horizontal direction.

  On the contrary, when the drill 14 is inclined so that the tip of the blade portion 22 is located above the shank portion 20 as shown in FIG. 5, only the vicinity of the middle portion of the blade portion 22 is a V-shaped groove 30. Abuts against the side wall of In this case, the operator may swing the swing table 44 from the initial position in the direction of arrow S2 in FIG. 5 by rotating the swing knob 46. Of course, the center of oscillation in this case is also point O in FIG.

  Along with this swing, the drill 14 swings at a predetermined angle so that the tip of the shank portion 20 held by the chuck 16 is the swing center and the tip of the blade portion 22 is displaced vertically downward. The actual swing angle of the swing table 44 is about 3 ° at the maximum as described above, and the swing angle θ2 of the drill 14 when the swing knob 46 is rotated by one scale is about 35 ″ to 55 ″. However, also in FIG. 5, the swing angle θ2 is exaggerated.

  By oscillating the drill 14 in this manner, the height direction positions of the blade portion 22 and the shank portion 20 substantially coincide with each other, and the longitudinal direction of the drill 14 substantially coincides with the horizontal direction as described above. .

  In the present embodiment, since the XY axis stage 24 and the Z axis stage 26 are used, the horizontal position and the height direction position of the drill 14 can be adjusted in units of μm. Further, since the drill 14 is swung in units of 35 "to 55" using the gonio stage 28, it is extremely easy to make the longitudinal direction of the drill 14 substantially coincide with the horizontal direction. For this reason, the horizontal direction position, height direction position, and angle with respect to the horizontal direction of the above-described drill 14 can be adjusted with high accuracy, and the drill 14 can be positioned with high accuracy after all.

  Next, the grinding wheel 18 shown in FIG. 1 is brought close to the drill 14, and the blade 22 is ground. Since the drill 14 is positioned with high accuracy as described above, it is possible to perform grinding on the portion of the blade portion 22 to be processed. For this reason, the processing accuracy of the blade 22 is improved. Therefore, the drill 14 with good dimensional accuracy can be easily obtained.

  In addition, this invention is not specifically limited to above-described embodiment, A various change is possible in the range which does not deviate from the summary.

  For example, in the above-described embodiment, the XY axis stage 24 is adopted as the horizontal position adjustment stage. However, as shown in FIG. 6, the work rest 51 is configured to adopt the X axis stage 50. You may make it do. In this case, the X-axis stage 50 may be disposed on the support pedestal 52 and the support pedestal 52 may be displaced along the arrow Y direction under the action of a displacement mechanism (such as a cylinder) not shown. At this time, the support pedestal 52 is guided by guide rails 56 a and 56 b that are provided on the base 23 and engage with recesses 54 a and 54 b formed on the lower end surface of the support pedestal 52. Further, the horizontal movement table 58 moves only along the arrow X direction when the horizontal movement knob 60 is rotated.

  Conversely, the X-axis stage 50 is installed in the direction in which the horizontal movement table 58 is displaced along the direction of the arrow Y in FIG. 6, and the support pedestal 52 is placed under the action of a displacement mechanism (not shown) in FIG. You may make it displaceable along the arrow X direction. That is, when the X-axis stage 50 is employed, the X-axis stage 50 is moved in a direction (in the direction of the arrow X in FIG. 6 or the direction in which the horizontal movement table 58 can displace the Z-axis stage 26 by a displacement mechanism. What is necessary is just to set so that it can displace to the direction (arrow Y direction or arrow X direction in FIG. 6) orthogonal to the arrow Y direction.

  Further, the horizontal position adjustment stage is not an essential component. That is, the work rest may be configured to include only two stages, that is, a height direction position adjustment stage and an angle adjustment stage.

  Furthermore, the angle adjustment stage is not limited to the gonio stage 28, and may be an inclined stage.

  And the workpiece | work (long object) supported by the work rests 10 and 51 is not specifically limited to the drill 14, Other long objects may be sufficient.

DESCRIPTION OF SYMBOLS 10, 51 ... Workrest 12 ... Grinding processing device 14 ... Drill 16 ... Chuck 18 ... Grinding wheel 20 ... Shank part 22 ... Blade part 24 ... XY axis stage 26 ... Z axis stage 28 ... Goniometer stage 30 ... V-shaped groove 32 ... Support members 34, 58 ... Horizontal movement table 40 ... Vertical movement table 44 ... Swing table 50 ... X-axis stage 52 ... Support base 56a, 56b ... Guide rail

Claims (5)

In the work rest that supports the long object from below when processing one end of the long object held by the holding unit of the processing device ,
A height direction position adjustment stage having a vertical movement table that moves along the vertical direction and is close to the elongated object ;
Is supported by the vertical movement table, the vertical displacement of the vertical direction following the displacement of the vertical movement table to Rutotomoni, a swingable swing table so as to be inclined against the horizontal direction An angle adjustment stage having ;
Wherein said supported on the oscillating table, the following the oscillation of the oscillating table against horizontally to swing to Rutotomoni, the long object is a groove extending along the longitudinal direction are formed of A support member for supporting the long object by accommodating the long object in the groove ;
Equipped with a,
The longitudinal angle relative to the horizontal direction of the long product, is adjusted by the oscillating table is swung toward the vertical direction, the Rukoto substantially aligned in the longitudinal direction of the long object in a horizontal direction A featured work rest.   The work rest according to claim 1, wherein the angle adjustment stage is a gonio stage. In work rest according to claim 1 or 2, wherein, with supporting the vertical movement table, further comprising a horizontal positioning stage having a horizontal moving table which moves along the horizontal direction, the horizontal position of the long product and the horizontal moving table is characterized that you adjusted by displacement in the horizontal direction work rest.   4. The work rest according to claim 3, wherein the horizontal position adjustment stage comprises an XY axis stage. 4. The workrest according to claim 3, wherein the horizontal position adjustment stage includes an X-axis stage, and the X-axis stage displaces the height-direction position adjustment stage in the horizontal direction under the action of a displacement mechanism. A work rest that is displaced in a direction perpendicular to the direction .

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