JP2011240445A - Tool for moving bottom block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool for moving a bottom block, for enabling to move a bottom block and clean on a table or a workpiece at the same time.SOLUTION: The tool 10 for moving a bottom block is provided for placing, on a table, the bottom block for supporting a workpiece with being spaced apart from the top surface of the table in a machine tool in which the main axis thereof and the table for placing the workpiece thereon are configured to be relatively movable in the three dimensional direction. The tool includes: a block holding part 13 disposed on the main axis, for holding the bottom block; fluid jet nozzles 131 provided in the bottom surface of the block holding part 13, the bottom surface facing the table; and a fluid flow chamber 14 provided in the block holding part 13, and communicating with the fluid jet nozzles 131.

Description

  The present invention relates to a spread block moving tool for moving a spread block for supporting a workpiece on a table.

Conventionally, in a machine tool, when a workpiece, that is, the vicinity of the bottom surface of a workpiece is machined, it is necessary to place the workpiece slightly away from the top surface of the table.
This will be described with reference to FIG. In FIG. 10A, the workpiece 100 is placed directly on the upper surface of the table 28. Therefore, if an attempt is made to process the vicinity of the bottom surface A of the workpiece 100 with the blade portion 200 of the tool 201 mounted on the spindle 30 of the machine tool, the upper surface of the table 28 is damaged by the blade portion 200, so Can not be processed.

  Therefore, as shown in FIG. 10B, the laying block 60 is used and the laying block 60 is laid under the work 100, so that the work 100 floats slightly away from the upper surface of the table 28. In this way, even when the vicinity of the bottom surface A of the workpiece 100 is machined, the upper surface of the table 28 is not damaged by the blade portion 200 of the tool 201.

A device using air pressure (see Patent Document 1) is known as such a device for placing a workpiece, that is, a device for floating and supporting the workpiece from the upper surface of the table (see Patent Document 1). Specifically, a hard block is laid under the work.
Such a block used for the purpose of being placed under the work is referred to herein as a “laying block”, and many are made of metal or iron. This is because it is convenient to obtain various shapes. As the shape of the floor block, various forms such as solid solid, hollow, frame-shaped, box-shaped, rod-shaped, plate-shaped, rail-shaped, and T-groove-shaped types are adopted.

JP 2000-219308 A

However, when the above-described floor block is arranged on the upper surface of the table, if dust or dust is scattered on the upper surface of the table, the floor block cannot be stably placed on the table. In addition, after processing the workpiece, scraps generated by the processing are scattered on the table or the workpiece. Therefore, a configuration capable of cleaning these dusts, dust, debris, etc. with a simple configuration is desired.
In order to solve the above problems, an object of the present invention is to provide a floor block moving tool capable of cleaning a table and a workpiece simultaneously with the movement of the floor block.

  The floor block moving tool of the present invention supports a work table in which the work table is separated from the upper surface of the table in a machine tool configured such that the table on which the work is placed and the spindle are relatively movable in a three-dimensional direction. A laying block moving tool for laying a laying block on the upper surface of the table, provided on the spindle and provided on a block holding part for holding the laying block and on a lower surface of the block holding part facing the table. A fluid ejection port and a fluid channel provided in the block holding portion and communicating with the fluid ejection port are provided.

In the present invention, the laying block can be moved to a desired position by holding the laying block with the block holding portion provided on the fulcrum and moving the main shaft in the triaxial direction. Further, a fluid ejection port is provided on the lower surface of the block holding portion of the tool, and a fluid flow path is communicated with the fluid ejection port. Therefore, by introducing, for example, air as a fluid into the fluid flow path, air can be ejected from the fluid ejection port, and dust or the like below the block holding portion can be blown away. In addition, a cleaning liquid such as water can be introduced as the fluid, and in this case, the liquid can be ejected from the fluid ejection port to clean the lower portion of the block holding portion. Moreover, a coolant etc. can also be introduce | transduced as a liquid introduce | transduced into a fluid flow path. In this case, for example, after holding the work on the floor block, coolant or the like can be sprayed onto the work, and heat generation during work processing can be suppressed.
That is, with the configuration as described above, the spread block moving tool of the present invention not only moves the spread block to a desired position, but also cleans the table before moving the spread block, and the spread block placed on the table. The top cleaning, the cleaning of the work placed on the floor block, the injection of coolant, and the like can be performed, and the stable placement of the floor block and the processing of the processing waste after the work processing can be performed.

  In the floor block moving tool of the present invention, it is preferable that the fluid flow path passes through a connection portion that connects the main shaft and the block holding portion, and communicates with a fluid introduction means provided on the main shaft.

  In this invention, the fluid flow path is formed in a so-called center-through type that communicates with the fluid introducing means of the main shaft through the inside of the block holding portion and the inside of the connecting portion. In such a center-through type fluid flow path, it is not necessary to provide a tube for introducing a fluid, and the configuration can be simplified.

  In the spread block moving tool of the present invention, the block holding portion is provided with a wiper that protrudes toward the table on a lower surface facing the table.

  In this invention, the wiper is provided on the lower surface of the block holding portion. For this reason, by moving the main shaft parallel to the surface direction of the target object while the wiper is in contact with the target object such as a table, a floor block, or a workpiece, dust and dirt adhering to these target objects are removed. Can be scraped off with a wiper. In particular, when oil such as coolant or cleaning liquid is used during workpiece processing, the processing waste adheres to the object due to these oil or cleaning liquid, and the processing waste may not be removed simply by blowing air. Even in such a case, in the present invention, it is possible to efficiently scrape and remove the processing waste adhering to an object such as a work or a table with the wiper.

  The floor block moving tool of the present invention supports a work table in which the work table is separated from the upper surface of the table in a machine tool configured such that the table on which the work is placed and the spindle are relatively movable in a three-dimensional direction. A laying block moving tool for laying a laying block on the upper surface of the table, provided on a block holding part for holding the laying block and a lower surface of the block holding part facing the table, and facing the table side. And a wiper that protrudes.

In the present invention, the laying block can be moved to a desired position by holding the laying block with the block holding portion provided on the fulcrum and moving the main shaft in the triaxial direction. Further, a wiper is provided on the lower surface of the block holding portion of the tool, and the wiper can scrape and remove dust and the like adhering to an object such as a workpiece, a floor block, or a table below the block holding portion. .
That is, with the configuration as described above, the spread block moving tool of the present invention not only moves the spread block to a desired position, but also cleans the table before moving the spread block, and on the spread block placed on the table. The cleaning of the workpiece placed on the floor block can be performed, and the stable placement of the floor block and the processing of the processing waste after the workpiece processing can be performed.

  In the spread block moving tool of the present invention, the spread block includes a bottom wall portion placed on the table, a top wall portion provided parallel to and spaced from the bottom wall portion, and the bottom. A wall section and a side wall section connecting both ends of the upper wall section, and is formed in a rectangular frame shape having a space inside, and the block holding section includes an extension piece section orthogonal to the upper surface of the table In addition, it is preferable to include an insertion piece portion that is provided substantially perpendicular to the extension piece portion from the distal end of the extension piece portion and can be inserted into the space of the floor block.

  In the present invention, the floor block is formed in a rectangular frame shape having a space inside, and the block holding portion includes an insertion piece portion that can be inserted into the space of the floor block. For this reason, this insertion piece part can be inserted in the space of a floor block, and a floor block can be lifted. Therefore, the lifting work of the floor block can be easily performed, and the insertion piece portion can be easily pulled out from the space of the floor block at the target position. Therefore, the floor block can be moved by a simple operation.

  In the spread block moving tool of the present invention, the block holding portion is located at a position separated from the position at which the insertion piece portion of the extension piece portion is provided by at least the thickness dimension of the upper wall portion. It is preferable to provide a mounting piece portion provided in parallel with the portion.

  In this invention, the block holding part is formed in a substantially U-shaped cross section by the extension piece part, the insertion piece part, and the attachment piece part. Therefore, the floor block can be lifted up by a simple operation as in the above-described invention. Further, the upper wall portion of the floor block can be sandwiched between the attachment piece portion and the insertion piece portion. Thereby, even when the laying block moves on the projection and moves away from the table during the movement of the laying block, for example, it can be suppressed by the mounting piece, and the falling off during the laying block movement can be prevented. .

  In the spread block moving tool of the present invention, the upper wall portion of the spread block and the insertion piece portion of the block holding portion are engaged with the upper wall portion on the insertion piece portion. It is preferable that a locking projection to be stopped is provided, and an insertion hole into which the locking projection can be inserted is provided on the other side.

  Here, when the opening end surface of the floor block or a part thereof is held in contact with the extension piece by the block holding portion, one insertion piece is provided on either the block holding portion or the insertion piece portion. A portion may be provided, and one insertion hole may be provided on the other. Further, in the case where the floor block is not brought into contact with the extension piece, it is sufficient that at least two or more locking projections and insertion holes are provided. In such a configuration, when the laying block is held by the block holding unit, the movement of the laying block in a two-dimensional plane parallel to the table surface can be restricted, and the laying block is accurately moved to a desired position. Can be made.

The perspective view which shows schematic structure of the tool for floor block movement used by 1st embodiment which concerns on this invention. The perspective view of the floor block used by 1st embodiment. Sectional drawing of the tool for floor block movement of 1st embodiment. The conceptual diagram which shows one Embodiment of the machine tool provided with the floor block moving tool of 1st embodiment. The figure which showed the arrangement | positioning state of the floor block on the table of 1st embodiment. The perspective view which shows the floor block moving tool of the 1st modification of this invention. The perspective view which shows a part of block holding part of the floor block moving tool of the 2nd modification of this invention, and a floor block. The perspective view which shows a part of block holding part of the floor block moving tool of the 3rd modification of this invention, and a floor block. Sectional drawing of the spread block moving tool of the 4th modification of this invention. The figure which shows the example of arrangement | positioning of the problem in workpiece processing, and a floor block.

[First embodiment]
Hereinafter, a first embodiment according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a floor block moving tool 10 used in the first embodiment, and adopts the same shape as a tool used for automatic tool change used in a machine tool. It can be handled in the same way as other tools.

  The floor block moving tool 10 is mainly considered to correspond to the frame-shaped floor block 60, and includes a main shaft mounting portion 11, a separator portion 12, and a block holding portion 13 which are connection portions of the present invention. Composed. Here, as shown in FIG. 2, the floor block 60 includes a bottom wall portion 60A placed on the table of the machine tool, and an upper wall portion provided parallel to and spaced from the bottom wall portion 60A. 60B and a side wall portion 60C that connects both ends of the bottom wall portion 60A and the upper wall portion 60B, and is formed in a rectangular frame shape having a space 60D inside.

  The spindle mounting portion 11 can be mounted on the spindle of a machine tool, similarly to a processing tool having a cutting blade such as a general drill or cutter, and therefore, the taper shank 16 inserted into the spindle, the taper. A chuck top 17 provided on the small-diameter portion side of the shank 16 and a tool grip ring portion 18 provided on the large-diameter portion side of the tapered shank 16 are provided.

  The separator part 12 is a cylindrical shape provided between the spindle mounting part 11 and the block holding part 13, and the axial dimension of the spindle mounting part 11 is adapted so that it can be adapted to the size and thickness of the floor block 60. There are various lengths.

The block holding part 13 is formed in a U shape. Specifically, an attachment piece 13A that is horizontally attached to the lower surface of the separator portion 12, an extension piece 13B that extends from one end of the attachment piece 13A in the axial direction of the spindle mounting portion 11, and the extension piece 13B. It is formed in a U-shape having an insertion piece portion 13C provided substantially perpendicular to the extension piece portion 13B from the tip and parallel to the attachment piece portion 13A and capable of being inserted into the space 60D of the floor block 60. Yes.
The length of the extension piece portion 13B, that is, the distance between the attachment piece portion 13A and the insertion piece portion 13C is formed to be larger than the thickness of the frame portion (upper wall portion 60B) of the floor block 60. Therefore, the upper wall portion 60B of the floor block 60 is inserted between the mounting piece portion 13A and the insertion piece portion 13C, and the upper wall portion 60B of the floor block 60 is lifted by the insertion piece portion 13C. Move.

FIG. 3 is a cross-sectional view of the spread block moving tool 10.
As shown in FIG. 3, a plurality of jets 131 (fluid jets of the present invention) are provided on the bottom surface of the insertion piece 13 </ b> C of the block holding unit 13. A fluid flow path 14 communicating with these jets 131 is formed.
Specifically, the chuck top 17 of the main shaft mounting portion 11 is formed with a first series passage 141 communicating with a fluid introduction means (not shown) provided on the main shaft, and in the taper shank 16 and the separator portion 12, A second communication path 142 connected to the first series path 141 is formed, and a chamber 143 is provided in the second communication path 142. Further, the block holding portion 13 is formed with a third communication passage 144 that communicates the chamber 143 and the ejection port 131. The fluid flow path 14 of the present invention includes a first series passage 141, a second communication path 142, a chamber 143, and a third communication path 144.
In such a spread block moving tool 10, the fluid introduced from the ejection port 131 is ejected by introducing the fluid into the fluid flow path 14 from the fluid introduction means. Here, examples of the fluid to be introduced include air, cleaning liquid, and coolant.

  In addition, a wiper 15 is provided at one end of the lower surface of the insertion piece portion 13C of the block holding portion 13 on the extension piece portion 13B side. The wiper 15 is formed in a longitudinal shape in a direction orthogonal to the protruding direction of the insertion piece 13C protruding from the extension piece 13B. For example, in the example shown in FIG. 3, the insertion piece 13 </ b> C protrudes leftward from the extension piece 13 </ b> B. In this case, the wiper 15 is formed in the longitudinal direction in the direction perpendicular to the paper surface in FIG. 3. The wiper 15 is a spatula-like member that protrudes downward from the insertion piece 13C, and is formed of a flexible member such as synthetic resin.

FIG. 4 is a view showing a machine tool 20 for placing the floor block 60 using the above-mentioned floor block moving tool 10.
The machine tool 20 is a portal machine tool, and includes a left column 22, a right column 23, and a cross beam 24, which are integrally formed of a casting so as to increase mechanical rigidity. Yes.
A spindle head 25 is assembled to the cross beam 24 so as to be movable in the left-right direction in the figure as an X-axis by a servo motor or the like. A spindle 30 as a spindle is incorporated in the spindle head 25 by a ram 26 so as to be movable in the vertical direction as a Z axis. The spindle 30 includes a servo motor whose rotational position is detected so that continuous rotation and rotational positioning can be performed as a C-axis (a rotation axis parallel to the Z-axis).
On the upper surface of the bed 29 between the left column 22 and the right column 23, a table 28 on which a workpiece is placed is provided as a Y axis so as to be movable in the front-rear direction (direction perpendicular to the paper surface in FIG. 4). . Accordingly, the table 28 on which the workpiece is placed and the spindle 30 constituting the main shaft are configured to be movable in the three-dimensional directions of the X, Y, and Z axes by a relative movement mechanism (not shown).

A block storage area for installing a plurality of floor blocks 60 (61 to 66) is provided on a part of the table 28, here, on the back side of the upper surface of the table 28 (on the Y axis coordinate side in the table minus direction). ing.
A tool magazine 40 and an automatic tool changer 50 are attached to the left column 22 side. The tool magazine 40 stores a floor block moving tool 10 and a number of machining tools mounted on a spindle 30 as a main shaft. The automatic tool changer 50 attaches any tool specified from the floor block moving tool 10 and the processing tool stored in the tool magazine 40 to the spindle 30 which is the main spindle, and is attached to the spindle 30. The active tool is operated to be collected in the tool magazine 40. That is, the tool is exchanged between the tool magazine 40 and the spindle 30 that is the spindle.

FIG. 5 is a diagram showing a state of the upper surface of the table 28 in the machine tool 20.
FIG. 5A is a diagram of the table 28 viewed from the top, and FIG. 5B is a diagram of the table 28 viewed from the front. In the block storage area 28A of the table 28, six floor blocks 60 (
61-66) are installed at regular intervals. The installation locations of these floor blocks 61 to 66 are defined by coordinates (X11, Y11, Z11) to (X16, Y16, Z16) as coordinates of the center position of the upper surface.
FIG. 5C shows the arrangement position after the six floor blocks 61 to 66 installed in the block storage area 28A are moved. Here, six floor blocks 61 to 66 are arranged at predetermined angular intervals on the same circumference at the workpiece placement position 28 </ b> B of the table 28. The installation locations of the floor blocks 61 to 66 at this time are defined by coordinates (X21, Y21, Z21) to (X26, Y26, Z26) as coordinates of the center position of the upper surface.

[Explanation of how to place the floor block]
Hereinafter, a method for arranging the floor blocks 61 to 66 by the machine tool 20 will be described. Here, as an example, a method of operating manually or by MDI (manual data input), that is, a manual or semi-automatic arrangement method will be described. The layout method of the floor blocks 61 to 66 is not limited to the manual or semi-automatic control described below. For example, the floor blocks 61 to 66 are formed by an automatic program using an NC machining program used in a numerical controller. You may arrange.

(1) In order to move the floor blocks 61 to 66 manually or by MDI, first, the floor blocks 61 to 66 are installed in the block storage area 28A within a range that can be held by the spindle 30 as the main shaft (block preparation). Process).
Here, six floor blocks 61 to 66 are installed on the back side of the upper surface of the table 28 (the table minus direction movement side in the Y-axis coordinates).

(2) Next, the floor block moving tool 10 is mounted on the spindle 30 which is the main shaft (tool mounting step).
For this purpose, the machine tool 20 is used and the floor block moving tool 10 is selected in the same manner as the tool change. That is, a tool change command is issued and the floor block moving tool 10 is mounted on the spindle 30. Alternatively, the floor block moving tool 10 may be mounted on the spindle 30 completely manually instead of using a tool change command.

(3) Next, the base block moving tool 10 is moved on the table 28 by relative movement of the relative movement mechanism, and the table 28 is cleaned (first cleaning step).
For this purpose, the machine tool 20 is operated and the floor block moving tool 10 is moved to one vertex of the table 28. At this time, the Z-axis coordinate of the floor block moving tool 10 is adjusted to a height position where the wiper 15 contacts the upper surface of the table 28. Then, the machine tool 20 is operated to move the floor block moving tool 10 in a direction intersecting the longitudinal direction of the wiper 15, and air is introduced from the main shaft to the fluid flow path 14, Air is blown out.
For example, when the wiper is disposed along the Y-axis direction, the floor block moving tool 10 is moved along the + X direction. When the floor block moving tool 10 is moved to the other end of the table 28, the tool is rotated by 180 degrees around the C axis and moved by the longitudinal dimension of the wiper 15 in the Y axis direction. Then, the floor block moving tool 10 is moved along the −X axis direction. Further, at the time of the movement, for example, air is always introduced from the fluid introduction means into the fluid flow path 14 and the air is ejected from the ejection port 131. By repeatedly performing the above operation, dust, dust, and deposits can be removed from the entire surface of the table 28 by the air and the wiper 15 ejected from the ejection port 131.
In addition, although the operation | movement which cleans the whole upper surface of the table 28 was illustrated here, you may perform the operation | movement which cleans only the position vicinity which arrange | positions the floor blocks 61-66, for example.
Alternatively, the first cleaning step may be performed by performing an operation of cleaning the table 28 by spraying a cleaning liquid or the like from the ejection port 131 instead of air and scraping the cleaning liquid with the wiper 15.

(4) Next, the base block moving tool 10 is moved on the table 28 by the relative movement of the relative movement mechanism, and the base block is moved by the block holding portion 13 of the base block moving tool 10. After holding 61, the floor block 61 is placed at a preset work placement position 28B on the upper surface of the table 28 (block placement step).
Specifically, the following operation is performed.
(4-1) The machine tool 20 is manually operated to move the spread block moving tool 10 to the vicinity of the block storage area 28A where the spread block 61 is installed. Again, manual or MDI may be used (approach to the floor block 61). For example, to move the laying block 61 first, the laying block moving tool 10 is moved and positioned near P1a in FIG.
(4-2) Here, it is examined whether the direction of the block holding portion 13 of the spread block moving tool 10 is rotated in such a direction as to lift the frame portion of the spread block 61. When the orientation of the block holding portion 13 is not so as to lift the frame portion of the spread block 61, the direction is changed to the lift direction by rotating the C axis of the spindle 30 (confirming the direction of the spread block moving tool).
(4-3) Further, the height of the floor block 61 can be lifted, that is, after adjusting the position in the Z-axis direction, the X-axis is moved and the insertion of the floor block moving tool 10 is performed. The one portion 13C is inserted into the space 61D of the floor block 61. After that, the Z-axis is moved so as to lift the frame body of the spread block 61 by the block holding portion 13 of the spread block moving tool 10, and the spread block 61 is lifted (approach and lifting of the spread block moving tool). This is performed at the position P1U in FIG.
(4-4) The laying block moving tool 10 is moved to the workpiece placement position 28B, and after adjusting the orientation of the laying block 61 by rotating the C axis at that position, the laying block 61 is lowered by lowering the Z axis. (Layout block placement). This is the position of P1d as the floor block 61 in FIG.
(4-5) The spindle 30 is moved so that the floor block moving tool 10 is pulled out from the moved floor block 61.

(5) Next, after the second laying block 62 is moved to the work placing position 28B in the same manner as the first moved first laying block 61, a predetermined position of the work placing position 28B is obtained. And place in the orientation.
If this is repeated up to the desired last floor block 66, the plurality of floor blocks 61 to 66 are arranged in a predetermined orientation at the workpiece placement position 28B.

Thus, after arrange | positioning the floor blocks 61-66 in the workpiece | work mounting position 28B, the 2nd cleaning process which cleans the top of the floor block 60 is implemented. In the second cleaning step, the Z coordinate of the spread block moving tool 10 is adjusted to a position where the wiper 15 can contact the upper surface of the upper wall portion 60B of the spread blocks 61 to 66. Then, the floor block moving tool 10 is moved on these floor blocks 61 to 66, and the upper surface of the upper wall portion 60B of the floor blocks 61 to 66 is cleaned. As described in the first cleaning step, this cleaning is performed by ejecting air, cleaning liquid, or the like from the ejection port 131 and scraping off dust, dirt, deposits, cleaning liquid, or the like with the wiper 15.
In addition, although the example which implements a 2nd cleaning process after moving all the floor blocks 61-66 was shown here, every time the movement of each floor blocks 61-66 is completed, a 2nd washing process is performed. You may implement.

And after carrying out the upper surface cleaning of the floor blocks 61-66, a workpiece | work is mounted on the floor blocks 61-66 and it processes. At this time, since the upper surfaces of the floor blocks 61 to 66 are cleaned, foreign matters such as dust, dust, and adhering matter are not interposed between the floor blocks 61 to 66 and the work, and the work is placed on the floor blocks 61 to 61. 66 can be stably placed on 66.
In machining, instead of the floor block moving tool 10, a machining tool for machining a workpiece is mounted on the spindle 30, and then the workpiece is machined by the machining tool. In addition, you may implement the workpiece | work cleaning process which wash | cleans a workpiece | work by the method similar to a 1st cleaning process or a 2nd cleaning process before mounting | wearing a processing tool before a process of a workpiece | work. Further, in the work cleaning process, coolant may be injected from the ejection port 131. In this case, the coolant can suppress heat generation during work processing and improve processing efficiency.

(6) After finishing the workpiece machining, the floor block moving tool 10 is mounted on the spindle 30 instead of the machining tool for machining the workpiece (tool changing step).
For this purpose, the machine tool 20 is used and the floor block moving tool 10 is selected in the same manner as the tool change. That is, a tool change command is issued and the floor block moving tool 10 is mounted on the spindle 30. Alternatively, the spread block moving tool 10 may be mounted on the spindle 30 completely manually instead of using a tool change command.
(7) Next, the work is cleaned by moving the floor block moving tool 10 relatively (third cleaning step). This operation is performed in the same manner as the first cleaning process and the second cleaning process. That is, the machine tool 20 adjusts the Z coordinate of the floor block moving tool 10 to a height position at which the wiper 15 can contact the upper surface of the workpiece. Then, air, cleaning liquid, or the like is ejected from the ejection port to remove dust, dust, and deposits on the workpiece as well as machining waste generated during machining. Further, when a liquid such as a coolant is used when machining the workpiece, the liquid can be removed by the wiper 15.
(8) After that, by relative movement, the block holding unit 13 of the floor block moving tool 10 holds the floor blocks 61 to 66 arranged at the workpiece placement position 28B, and then the floor blocks 61 to 66 are restored to the original positions. It collects in block storage area 28A (block collection process). Thereby, a series of operations of arrangement of the floor blocks 61 to 66, processing of the workpiece, and recovery of the floor blocks 61 to 66 are completed. In addition, you may clean the table 28 by the cleaning process similar to a 1st-3rd cleaning process after a series of work completion.

[Operational effects of the first embodiment]
As described above, the spread block moving tool 10 of the first embodiment includes the insertion piece portion 13C of the block holding portion 13 that holds the spread block, and a plurality of jets are formed on the lower surface of the insertion piece portion 13C. Outlets 131 are provided, and these jets 131 communicate with the main shaft via a fluid flow path 14 formed inside the block holding portion 13 and the main shaft mounting portion 11. For this reason, fluids such as air, coolant, and cleaning liquid can be ejected from the ejection port 131 from the main shaft. Accordingly, by moving the main shaft to a desired position and ejecting air and cleaning liquid from the ejection port 131, for example, the table 28, the floor block 60, and the workpiece can be cleaned. In addition, before machining the workpiece, coolant can be injected onto the workpiece, and the workpiece machining efficiency can be improved.

  A wiper 15 is provided on the lower surface of the insertion piece 13C. The wiper 15 is formed in the longitudinal direction in the width direction (Y-axis direction) orthogonal to the protruding direction of the insertion piece 13C at the end of the insertion piece 13C on the extension piece 13B side. For this reason, when inserting 13 C of insertion pieces in the internal space 60D of the floor block 60, the wiper 15 does not contact | abut the bottom wall part 60A of the floor block 60, and does not become obstructive when holding a floor block. In addition, by adjusting the Z-axis position of the spindle, the wiper 15 is brought to a height position where it comes into contact with an object to be cleaned such as the table 28, the floor block 60, and a workpiece, and the floor block moving tool 10 is moved in the X-axis direction. The wiper 15 that is long along the Y-axis direction can scrape off deposits, dust, and dust adhering to the surface to be cleaned. For this reason, the dust and dust to be cleaned can be more reliably removed. Moreover, when liquids, such as a washing | cleaning liquid and a coolant, are jetted from a jet nozzle, these liquids can be scraped and removed by the wiper 15.

  Furthermore, the block holding part 13 is provided with the insertion piece part 13C substantially orthogonal to the extension piece part 13B. In such a configuration, the insertion piece 13C is inserted into the internal space 60D of the floor block 60, and the floor block moving tool 10 is moved upward (in the + Z-axis direction) to easily lift and move the floor block 60. Can be made.

  Here, the block holding portion 13 includes the attachment piece portion 13A, and in a state where the floor block 60 is held by the block holding portion 13, the upper wall portion 60B is sandwiched between the insertion piece portion 13C and the attachment piece portion 13A. It becomes. For this reason, the floor block 60 can be securely held. For example, even when the bottom wall 60A rides on another member and is pushed upward while the floor block 60 is moving, the floor block 60 is attached to the mounting piece 13A. The upper wall portion 60B can be pressed, and inconveniences such as dropping of the floor block 60 can be avoided.

[Other Embodiments]
It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.

For example, the structure shown in FIGS. 6 to 8 may be used as the spread block moving tool.
FIG. 6 is a diagram illustrating a first modification of the spread block moving tool.
That is, in the spread block moving tool 10, the shape of the block holding portion 13 may be as shown in FIG.
This floor block moving tool 10A includes an L-shaped block holding portion 113C. Specifically, an extension piece 13B extending in the axial direction of the main shaft mounting part 11 from the lower surface of the separator part 12, and the extension block 13B is provided at a substantially right angle from the tip of the extension piece part 13B to the extension piece part 13B. It is formed in an L shape having an insertion piece portion 13C that can be inserted into the space 60D.
Therefore, according to the floor block moving tool 10A, after the insertion piece 13C is inserted into the space 60D of the floor block 60, the floor block 60 can be lifted and moved to the workpiece placement position 28B. An extremely simple and inexpensive configuration can be achieved.

In the floor block moving tool 10 of the first embodiment, the configuration in which both the ejection port 131 communicating with the fluid flow path 14 and the wiper 15 are provided on the lower surface of the insertion piece 13C is described. 15 may be provided, and only the ejection port 131 communicating with the fluid flow path 14 may be formed.
Further, for example, as in the second modification shown in FIG. 7, the jet 131 and the fluid flow path 14 may not be formed, and only the wiper 15 may be provided. Even in this case, only the wiper 15 is provided. Thus, the cleaning process can be performed.

FIG. 8 is a view showing a third modification of the spread block moving tool.
The floor block moving tool 10 </ b> C includes, for example, a columnar locking protrusion 132 that protrudes toward the separator portion 12 on the insertion piece portion 13 </ b> C of the block holding portion 13.
Further, the floor block 60 includes an insertion hole 601 through which the locking projection 132 can be inserted at a substantially planar center position of the upper wall portion 60B.
In such a spread block moving tool 10C, the insertion block portion 13C is inserted into the space 60D of the spread block 60, and the spread block moving tool 10C is in a state where the end surface 602 of the spread block 60 is in contact with the extension piece 13B. Is moved upward (+ Z direction), the locking projection 132 is inserted into the insertion hole 601. Therefore, the floor block 60 is positioned by both the locking projection 132 and the extension piece portion 13B, and can be reliably held on the insertion piece portion 13C.

Further, in the example shown in FIG. 8, the cylindrical locking protrusion 132 is configured to be inserted into the circular insertion hole 601. For example, the locking protrusion having a rectangular cross section is inserted into the insertion hole having a rectangular cross section. It is good also as the structure etc. which are penetrated. In this case, the floor block 60 can be positioned and securely held without causing the end surface 602 of the floor block 60 to contact the extension piece 13B.
Furthermore, as shown in the example shown in FIG. 9, a plurality of (for example, two) locking protrusions 132 are provided on the insertion piece portion 13 </ b> C, and the upper wall portion 60 </ b> B of the floor block 60 corresponds to these locking protrusions 132. The insertion hole 601 may be formed. Even in this case, the floor block 60 can be securely held by the block holding unit 13, and for example, it is possible to avoid inconveniences such as dropping of the floor block 60 from the block holding unit 13 during the movement of the floor block 60. it can.

In the above-described embodiment, the floor block moving tool 10 is stored in the tool magazine 40 and mounted on the spindle 30 by changing the tool. It doesn't matter. Of course, the spindle 30 may be manually mounted without being stored in the tool magazine 40.
Further, a portal machine tool was used as the machine tool, and the orientation of the spread block moving tool 10 was controlled to correspond to the orientation of the spread block 60 (61 to 66) by using rotational positioning control of the C axis. However, the rotation control may be performed on the table side. In addition, in other types of machine tools such as a horizontal machining center, the rotation may be performed with other rotation axes, for example, the A axis and the B axis, or may be performed with the parallel axes, and is not limited to this embodiment.
In the above-described example, the block storage area 28A is the portion of the upper surface of the table 28. However, the present invention is not limited to this. The invention can be implemented.

  Moreover, in the above, the example in which the wiper 15 is provided along the one end edge on the extension piece portion 13B side in the lower surface of the insertion piece portion 13C has been shown. Any position may be provided as long as it does not contact the floor block 60 when inserted into 60D or does not hinder the insertion operation of the insertion piece 13C. Also, the number of wipers 15 may be configured to be provided with two or more, for example.

  In addition, the specific structure and procedure for carrying out the present invention can be appropriately changed to other structures and the like within a range in which the object of the present invention can be achieved.

  The present invention can be used for a machine tool in which a table and a spindle can be relatively moved in a three-dimensional direction.

  DESCRIPTION OF SYMBOLS 13 ... Block holding part, 13A ... Mounting piece part, 13B ... Extension piece part, 13C ... Insertion piece part, 20 ... Machine tool, 28 ... Table, 30 ... Spindle (main shaft), 60-66 ... Spreading block, 60A ... Bottom wall part, 60B ... Upper wall part, 60C ... Side wall part, 60D ... Space, 100 ... Workpiece, 131 ... Spout (fluid spout), 132 ... Locking projection, 601 ... Insertion hole.

Claims (7)

In a machine tool configured such that a table on which a workpiece is placed and a main shaft are relatively movable in a three-dimensional direction, a floor block that supports the workpiece in a state of being separated from the upper surface of the table is disposed on the upper surface of the table. A floor block moving tool,
A block holding portion provided on the main shaft and holding the floor block;
A fluid ejection port provided on the lower surface of the block holding part facing the table;
A fluid flow path provided in the block holding portion and communicating with the fluid ejection port;
A floor block moving tool characterized by comprising: In the spread block moving tool according to claim 1,
The fluid flow path passes through the inside of a connecting portion that connects the main shaft and the block holding portion, and communicates with fluid introducing means provided on the main shaft. In the spread block moving tool according to claim 1 or 2,
The block holding tool is provided with a wiper that protrudes toward the table on a lower surface facing the table. In a machine tool configured such that a table on which a workpiece is placed and a main shaft are relatively movable in a three-dimensional direction, a floor block that supports the workpiece in a state of being separated from the upper surface of the table is disposed on the upper surface of the table. A floor block moving tool,
A block holding unit for holding the floor block;
A wiper provided on a lower surface of the block holding portion facing the table, and protruding toward the table;
A floor block moving tool characterized by comprising: In the spread block moving tool according to any one of claims 1 to 4,
The floor block includes a bottom wall portion placed on the table, an upper wall portion provided parallel to and spaced from the bottom wall portion, and between the both ends of the bottom wall portion and the upper wall portion. And is formed in a rectangular frame shape having a space inside,
The block holding part includes an extension piece perpendicular to the upper surface of the table, and an insertion piece that is provided substantially perpendicular to the extension piece from the tip of the extension piece and can be inserted into the space of the floor block. A floor block moving tool characterized by comprising: In the floor block moving tool according to claim 5,
The block holding portion is a mounting piece portion provided in parallel with the insertion piece portion at a position separated from the position where the insertion piece portion of the extension piece portion is provided by at least the thickness dimension of the upper wall portion. A floor block moving tool characterized by comprising: In the floor block moving tool according to claim 5 or 6,
One of the upper wall portion of the floor block and the insertion piece portion of the block holding portion is provided with a locking projection for locking the upper wall portion to the insertion piece portion, An insertion hole into which the locking protrusion can be inserted is provided in the floor block moving tool.

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