JP3130916U - Cutting table - Google Patents

Abstract

Disclosed is a cutting table that provides excellent workability and a machined object with high dimensional accuracy when a machined object is cut.
A cutting table for fixing and cutting a workpiece to be cut,
At least one selected from the group consisting of a mechanical gripping and fixing means for fixing the workpiece, a decompression fixing means and a magnetic force fixing means, and an upper surface end of the cutting table for positioning the workpiece A work stopper installed on the part, and a scale installed on the upper surface end of the cutting table,
The shape of the upper surface of the cutting table after being rotated 180 degrees and the shape of the upper surface of the cutting table before being rotated by 180 degrees are based on the normal direction to the upper surface of the cutting table. A cutting table.
[Selection] Figure 1

Description

  The present invention relates to a cutting table for fixing a workpiece to be cut, which is preferably used in a cutting apparatus.

When cutting a workpiece such as metal, the workpiece is usually fixed to a cutting table provided in a cutting device.
Specifically, the workpiece to be cut fixed to the cutting table is cut while supplying cutting oil by a cutting means such as an end mill, a milling cutter or a cutting tool provided in the cutting device. Thus, the workpiece can be cut to a predetermined thickness.
However, when cutting is performed while pressing a rotating end mill, a milling cutter or the like against the workpiece, a considerable force is applied to the workpiece.
For this reason, when the work piece is not sufficiently fixed, a minute change occurs in the position of the work piece before and after the cutting process, and as a result, the dimensional accuracy of the work piece after cutting is as a result. May decrease. In order to prevent this dimensional accuracy from being lowered, it is necessary to securely fix the workpiece to be cut to the cutting table.
Furthermore, in actual work sites, the size and shape of the workpiece to be cut often vary from one cutting process to another.
Thus, when cutting the workpiece, there is an operation of positioning the workpiece at an accurate location on the cutting table and firmly fixing the workpiece to the cutting table. Since this is necessary, there is a problem that workability of the cutting process is lowered.
In order to cope with this problem, it has been proposed to employ mechanical gripping fixing means, vacuum fixing means, magnetic force fixing means, and the like as means for fixing the workpiece to be cut to the cutting table (Patent Document 1). ).
JP 2006-281350 A

However, when positioning the workpiece on the cutting table, the workpiece is often positioned at a specific location on the cutting table from the viewpoint of workability. May go faster.
As this wear progresses, the flatness of the entire cutting table surface is impaired, and there is a problem that the dimensional accuracy of the obtained workpiece to be cut decreases.
An object of the present invention is to provide a cutting table that provides excellent workability and a machined object with high dimensional accuracy when the machined object is cut.

  As a result of intensive studies by the present inventors to solve the above-mentioned problems, a cutting table having the same surface shape even when rotated 180 degrees about the normal direction to the surface of the cutting table as a central axis is the object of the present invention. We found that it was suitable and came to complete this invention.

That is, the present invention
[1] A cutting table for fixing and cutting a workpiece to be cut,
At least one selected from the group consisting of mechanical gripping and fixing means for fixing the workpiece, reduced pressure fixing means and magnetic force fixing means;
A work stopper installed at an upper surface end of the cutting table for positioning the workpiece to be cut;
A scale installed at an upper end of the cutting table;
Have
The shape of the upper surface of the cutting table after being rotated 180 degrees and the shape of the upper surface of the cutting table before being rotated by 180 degrees are based on the normal direction to the upper surface of the cutting table. And provide a cutting table,
[2] A cutting table for fixing and cutting a workpiece to be cut,
At least one selected from the group consisting of mechanical gripping and fixing means for fixing the workpiece, reduced pressure fixing means and magnetic force fixing means;
A work stopper installed at an upper surface end of the cutting table for positioning a workpiece to be cut;
A scale installed at an upper end of the cutting table;
Have
The shape of the upper surface end of the cutting table after being rotated 180 degrees with respect to the normal direction to the upper surface of the cutting table and the shape of the upper surface end of the cutting table before being rotated 180 degrees Providing a cutting table characterized by matching each other;
[3] The shape of the entire cutting table after being rotated 180 degrees and the shape of the entire cutting table before being rotated 180 degrees coincide with each other on the basis of the normal direction to the upper surface of the cutting table. The cutting table according to [1] or [2] above is provided, characterized in that
[4] The upper surface of the cutting table has a lattice-like groove portion and a plurality of holding portions defined by the groove portion,
The holding portion has a suction hole for fixing the workpiece to be cut under reduced pressure,
The cutting table has a reduced pressure fixing means and a reduced pressure display means communicating with the suction hole. The cutting table according to any one of the above [1] to [3] is provided. ,
[5] A combination cutting table in which two or more cutting tables for fixing and cutting a workpiece to be cut are combined such that all the upper surfaces of the respective cutting tables are on the same plane,
Each cutting table has at least one selected from the group consisting of a mechanical grip fixing means for fixing a workpiece to be cut, a reduced pressure fixing means, and a magnetic force fixing means,
A work stopper for positioning a workpiece to be cut, which is installed on the upper surface end of each of the combined cutting tables;
A scale installed at the upper surface end of each of the combined cutting tables;
Have
The shape of the upper surface of each of the combined cutting tables after being rotated by 180 degrees on the basis of the normal direction to the upper surface of the combined cutting tables as a reference, and the combination before being rotated by 180 degrees. In addition, the present invention provides a combined cutting table characterized in that the shape of the upper surface of each cutting table is the same as each other.
[6] A combined cutting table in which two or more cutting tables for fixing and cutting a workpiece to be cut are combined such that all the upper surfaces of the respective cutting tables are on the same plane,
Each cutting table has at least one selected from the group consisting of a mechanical grip fixing means for fixing a workpiece to be cut, a reduced pressure fixing means, and a magnetic force fixing means,
A work stopper for positioning a workpiece to be cut, which is installed on the upper surface end of each of the combined cutting tables;
A scale installed at the upper surface end of each of the combined cutting tables;
Have
The shape of the upper surface end of each of the combined cutting tables after being rotated 180 degrees with respect to the normal direction to the upper surface of the combined cutting tables as a reference, and the shape before rotating 180 degrees It is an object of the present invention to provide a combined cutting table characterized in that the shape of the upper end portion of each of the combined cutting tables coincides with each other.

The cutting table of the present invention includes at least one selected from the group consisting of mechanical gripping fixing means, reduced pressure fixing means and magnetic force fixing means as means for fixing the workpiece to be cut. The body can be easily attached and detached.
Further, since the cutting table of the present invention has a work stopper and a scale at the upper end portion thereof, the workpiece to be cut can be easily positioned with respect to the cutting table.
Furthermore, since the cutting table of the present invention matches the shape after rotating 180 degrees and the shape before rotating 180 degrees, the cutting table can be used while appropriately rotating, It is possible to delay the decrease in dimensional accuracy of the workpiece to be cut due to wear of only a specific portion of the cutting table.
In addition, since the combined cutting table of the present invention can combine two or more cutting tables, it is possible to provide an appropriate working environment according to the size of the planar shape of the workpiece. is there.
In addition, when using the combined cutting table of the present invention, it is possible to prevent wear of a specific part of each cutting table by rotating each cutting table 180 degrees as needed.
Due to the above action, according to the cutting table and the combined cutting table of the present invention, when cutting the workpiece, the cutting table that provides excellent workability and a workpiece with high dimensional accuracy. Can be provided.

Embodiments of the present invention will be described below in detail with reference to the drawings.
FIG. 1 is a schematic perspective view of a main part illustrating a cutting table according to the present invention.
As illustrated in FIG. 1, the cutting table 100 includes an upper pedestal 1 and a lower pedestal 2.

Work stoppers 3a and 3b are provided on the upper pedestal 1, and the work piece to be cut is brought into contact with the work stoppers 3a and 3b, whereby the position of the work piece to be cut with respect to the upper surface 50 of the cutting table 100 is determined. Easy to decide.
The work stoppers 3a and 3b are fixed to the upper base 1 in a detachable state. When the work stopper is not necessary, it is possible to remove the work stopper by releasing fixing means such as a bolt.

Further, a scale 4 is provided at an upper end portion of the cutting table 100.
A scale is displayed on the scale 4, and positioning of the workpiece to be cut with respect to the upper surface 50 of the cutting table 100 can be facilitated.

  An upper surface 50 of the cutting table 100 is provided with a suction hole 5 for fixing the workpiece to be cut under reduced pressure and a bolt hole 6 for fixing the workpiece to be chucked to mechanically grip the workpiece. It has been.

  Further, as illustrated in FIG. 1, the side surface of the cutting table 100 is provided with a pressure reducing pipe 7 and a pressure reducing gauge 8 for fixing the object to be cut to the upper surface 50 of the cutting table 100 under reduced pressure. It has been.

  Although not particularly illustrated, the decompression pipe 7 communicates with the suction hole 5 and the decompression gauge 8 inside the lower pedestal 2, and by connecting a vacuum pump to the decompression pipe 7, the suction hole The workpiece to be cut which is in contact with 5 can be fixed under reduced pressure.

  In addition, it is possible to confirm whether or not the workpiece to be cut is actually fixed to the upper surface 50 of the cutting table 100 by the decompression gauge 8.

  The decompression gauge 8 is an analog meter. However, the decompression display means represented by the decompression gauge 8 is not limited to this, and for example, a digital digital meter may be used instead. Good.

  Reference numeral 9 in FIG. 1 denotes a power switch for controlling an electromagnetic on-off valve for opening and closing the decompression pipe 7 provided on the cutting table 100, and a magnetic force fixing means provided on the cutting table 100. A power switch for controlling the power.

An electromagnetic on-off valve capable of opening and closing the decompression pipe 7 is provided inside the upper base 1, and the opening and closing of the decompression pipe 7 can be controlled by the power switch 9 and the like.
In addition, an opening / closing lever can be installed in place of the electromagnetic opening / closing valve to open / close the decompression pipe 7, and the opening / closing lever can be opened / closed by the movement of the opening / closing lever. The decompression pipe 7 can be opened and closed by installing and rotating the opening and closing valve appropriately.
Further, an electromagnet for magnetically fixing the workpiece to be cut is provided inside the upper pedestal 1, and a current is appropriately conducted to the electromagnet through the power switch 9 or the like, whereby the workpiece to be cut is provided. The body can be easily fixed to the upper surface 50 of the cutting table 100. When the workpiece to be cut is removed from the upper surface 50 of the cutting table 100, the current that is conducted to the electromagnet may be stopped by the power switch 9.

  In addition, a demagnetizing device is provided inside the upper pedestal 1, and the magnetism of the workpiece to be cut magnetized by the electromagnet can be demagnetized.

  As illustrated in FIG. 1, the upper surface 50 of the cutting table 100 is provided with a lattice-like groove 10 and a plurality of holding parts 11 partitioned by the groove 10.

  The upper surface of the holding portion 11 is a flat surface, and the upper surface of each holding portion 11 is arranged so as to be aligned on the same plane.

The shape of the groove portion 10 is appropriately selected in consideration of the properties and size of the workpiece to be used, and is usually in the range of 3 to 15 mm in depth, and in the range of 5 to 10 mm. preferable.
Moreover, the width | variety is the range of 3-15 mm normally, and if it is the range of 5-10 mm, it is preferable.

Further, the shape of the holding part 6 is appropriately selected in consideration of the properties and size of the workpiece to be used, and is usually a rectangle in the range of 5 to 50 mm in length and 5 to 50 mm in width. A range of 10-30 mm in length and 10-30 mm in width is preferable.
The upper surface shape of the holding part 11 is preferably a square.

FIG. 2 is a schematic cross-sectional view of an essential part illustrating the state where the upper base 1 is cut along a plane perpendicular to the upper surface 50 of the cutting table 100.
As illustrated in FIG. 2, the shape of the holding portion 11 is more preferably a trapezoidal shape.

  FIG. 3 is a schematic perspective view of a main part for explaining an operation of fixing the workpiece 200 to the upper surface 50 of the cutting table 100 by a decompression fixing means provided on the cutting table 100.

  A sealing material 20 formed of an elastic member such as silicon rubber is inserted into a lattice-like groove 10 provided on the upper surface 50 of the cutting table 100. At this time, the sealing material 20 prevents a gap from being formed between the groove 10 and the sealing material 20. For confirming the size of the cutting table 100 in advance to determine which groove 10 the sealing material 20 is to be inserted into, refer to the scale 4 installed at the upper end of the cutting table 100. By doing so, it can be easily determined.

  By placing the workpiece 200 on the seal material 20 and reducing the pressure inside the space surrounded by the seal material 20, the upper surface 50 and the workpiece 200 through the suction hole 5, The workpiece 200 can be fixed to the upper surface 50 of the cutting table 100.

  Each of the suction holes 5 is provided with an open / close valve, and the suction holes 5 other than the space surrounded by the sealing material 20, the upper surface 50 and the workpiece 200 are kept closed. It is.

  Whether or not the workpiece 200 is fixed to the upper surface 50 of the cutting table 100 can be confirmed by the degree of decompression indicated by the decompression gauge 8.

  FIG. 4 is a schematic perspective view of a main part for explaining an operation of fixing the workpiece 200 to the upper surface 50 of the cutting table 100 by mechanical gripping and fixing means provided on the cutting table 100. is there.

The chuck 30 can be fixed to the bolt hole 6 (see FIG. 1) provided on the upper surface 50 of the cutting table 100 using a bolt.
The chuck 30 can grip and fix the workpiece to be cut.
Since the bolt holes 6 are provided in large numbers on the upper surface 50 of the cutting table 100, the position of the chuck 30 can be adjusted as appropriate.

FIG. 5 is a schematic perspective view of the main part for explaining the features of the cutting table 100 of the present invention.
The cutting table 100 of the present invention includes the cutting table upper surface shape after being rotated 180 degrees with respect to the normal direction to the upper surface of the cutting table 100 and the cutting table upper surface shape before being rotated 180 degrees. Is a match.
Similarly, the shape of the upper end portion of the cutting table after being rotated 180 degrees coincides with the shape of the upper end portion of the cutting table before being rotated 180 degrees.

  Specifically, each of the cutting table 100 illustrated in FIG. 5 and the normal to the upper surface thereof, that is, the cutting table 101 illustrated in FIG. 5 rotated by 180 degrees by a one-dot broken line aa. The shape of the upper surface of the two coincides. Similarly, the shape of each upper surface edge part is also in agreement.

  Therefore, the mounting positions of the work stoppers 3a and 3b, the scale 4, the suction hole 5, the bolt hole 6, the groove portion 10 and the holding portion 11 provided on the cutting tables 100 and 101 are the cutting positions. Even when the table is rotated 180 degrees with respect to the normal line direction with respect to the surface of the table, the same position is provided.

FIG. 6 is a schematic perspective view of a main part illustrating a state in which a combined cutting table is formed by combining the cutting tables 100 to 105.
As illustrated in FIG. 6, the cutting table of the present invention can be used as a combined cutting table 500 by combining two or more.

  Even when the cutting tables 100 to 105 illustrated in FIG. 6 are rotated 180 degrees with respect to the normal direction with respect to the cutting table surface, the cutting table surface has exactly the same shape before being rotated 180 degrees. Become.

For this reason, it is possible to prevent the abrasion of a specific position on the surface of the cutting table from proceeding by appropriately rotating any of the cutting tables 100 to 105 by 180 degrees.
The work stoppers 3 a and 3 b are detachable and are attached to the outer periphery of the combined cutting table 500.
As described above, even when the work stoppers 3a and 3b are removed, the shape of the upper end portion of each cutting table is rotated 180 degrees even when the shape is rotated 180 degrees with respect to the normal direction to the cutting table surface. The same shape as before.

FIG. 7 is a schematic perspective view of a main part illustrating the connected state of the cutting table.
The cutting tables 100, 102, and 104 are provided with a connecting hole 12 in the lower pedestal 2.
On the other hand, the cutting tables 101, 103, and 105 are provided with a connecting protrusion 13 on the lower pedestal 2.
By fitting the connecting hole 12 and the connecting projection 13 together, the cutting tables 100 to 105 can be combined so that all the upper surfaces of the cutting tables 100 to 105 are aligned on the same plane.
The above relationship is the same even when the number of the cutting tables is changed.

FIG. 8 is a schematic perspective view of a main part illustrating the usage state of the cutting table of the present invention.
As illustrated in FIG. 8, the cutting table 100 is preferably used in a cutting device 600.

In the cutting apparatus 600, the workpiece 200 is fixed to the cutting table 100 by the pressure reducing means or magnetic force fixing means described above.
Specific examples of the workpiece to be cut include an iron plate, an aluminum plate, a copper plate, and a stainless plate.

  A cutting tool 610 is attached to the cutting device 600 and contacts the workpiece 200 while rotating the cutting tool 610 and continuously moves its position.

The cutting tool 610 is provided with a cutting blade (not shown) formed of super steel or the like, and the surface of the workpiece 200 can be cut with this cutting blade.
The rotational speed of the cutting tool 610 is usually in the range of 100 to 200 rpm.
By one movement of the cutting tool 610, the surface of the workpiece 200 can be cut within a range of about 0.1 to 1 mm.

  By repeating the movement of the cutting tool 610, the thickness of the workpiece 200 can be adjusted to a desired value.

It is preferable to use a cutting oil in order to smoothly cut during the cutting.
There is no limitation in particular in the said cutting oil, A normal commercial item can be used.

  Although not specifically shown, the piping and cables installed on the cutting table 100 are equipped with spring-like coils, and the piping and cables are damaged by cutting waste generated by cutting. Has been made to prevent.

When the number of times of cutting the surface of the workpiece 200 reaches a certain value, the cutting table 100 is rotated 180 degrees with respect to the normal direction of the surface of the cutting table 100 and used. It is possible to prevent a specific portion of the surface of the cutting table from being worn.
This relationship is the same in the case of the combination cutting table described above.

  As mentioned above, although this invention was demonstrated by the specific embodiment, referring drawings, it cannot be overemphasized that this invention is not what is limited to this embodiment.

It is the model principal part perspective view which illustrated the cutting table of this invention. It is the typical principal part sectional view which illustrated signs that the upper base was cut by the plane perpendicular to the table top for cutting. It is a typical principal part perspective view for demonstrating operation which fixes a to-be-cut body by the decompression fixing means provided in the table for cutting. It is a typical principal part perspective view for demonstrating operation which fixes a to-be-cut body by the mechanical holding | grip fixing means provided in the table for cutting. It is a typical principal part perspective view for demonstrating the characteristic of the cutting table of this invention. It is the model principal part perspective view which illustrated the state which has formed the combination cutting table by combining the table for cutting. It is the model principal part perspective view which illustrated the connection state of the table for cutting. It is the model principal part perspective view which illustrated the use condition of the table for cutting of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper base 2 Lower base 3a, 3b Work stopper 4 Scale 5 Suction hole 6 Bolt hole 7 Pressure reducing pipe 8 Pressure reducing gauge 9 Power switch 10 Groove part 11 Holding part 12 Connection hole 13 Connection protrusion 20 Seal material 30 Chuck 50 Cutting table upper surface 100 to 105 Cutting table 200 Work piece 500 Combination cutting table 600 Cutting device 610 Cutting tool

Claims (6)

A cutting table for fixing and cutting a workpiece,
At least one selected from the group consisting of mechanical gripping and fixing means for fixing the workpiece, reduced pressure fixing means and magnetic force fixing means;
A work stopper installed at an upper surface end of the cutting table for positioning the workpiece to be cut;
A scale installed at an upper end of the cutting table;
Have
The shape of the upper surface of the cutting table after being rotated 180 degrees and the shape of the upper surface of the cutting table before being rotated by 180 degrees are based on the normal direction to the upper surface of the cutting table. A cutting table. A cutting table for fixing and cutting a workpiece,
At least one selected from the group consisting of mechanical gripping and fixing means for fixing the workpiece, reduced pressure fixing means and magnetic force fixing means;
A work stopper installed at an upper surface end of the cutting table for positioning a workpiece to be cut;
A scale installed at an upper end of the cutting table;
Have
The shape of the upper surface end of the cutting table after being rotated 180 degrees with respect to the normal direction to the upper surface of the cutting table and the shape of the upper surface end of the cutting table before being rotated 180 degrees A cutting table characterized by matching with each other.   The shape of the entire cutting table after being rotated 180 degrees and the shape of the entire cutting table before being rotated 180 degrees are based on the normal direction with respect to the upper surface of the cutting table. The cutting table according to claim 1 or 2. The upper surface of the cutting table has a grid-like groove portion and a plurality of holding portions partitioned by the groove portion,
The holding portion has a suction hole for fixing the workpiece to be cut under reduced pressure,
The cutting table according to any one of claims 1 to 3, wherein the cutting table includes a decompression fixing unit and a decompression display unit communicating with the suction hole. A combination cutting table in which two or more cutting tables for fixing and cutting a workpiece are combined so that all the upper surfaces of the respective cutting tables are on the same plane,
Each cutting table has at least one selected from the group consisting of a mechanical grip fixing means for fixing a workpiece to be cut, a reduced pressure fixing means, and a magnetic force fixing means,
A work stopper for positioning a workpiece to be cut, which is installed on the upper surface end of each of the combined cutting tables;
A scale installed at the upper surface end of each of the combined cutting tables;
Have
The shape of the upper surface of each of the combined cutting tables after being rotated by 180 degrees on the basis of the normal direction to the upper surface of the combined cutting tables as a reference, and the combination before being rotated by 180 degrees. A combined cutting table characterized in that the shape of the upper surface of each cutting table coincides with each other. A combination cutting table in which two or more cutting tables for fixing and cutting a workpiece are combined so that all the upper surfaces of the respective cutting tables are on the same plane,
Each cutting table has at least one selected from the group consisting of a mechanical grip fixing means for fixing a workpiece to be cut, a reduced pressure fixing means, and a magnetic force fixing means,
A work stopper for positioning a workpiece to be cut, which is installed on the upper surface end of each of the combined cutting tables;
A scale installed at the upper surface end of each of the combined cutting tables;
Have
The shape of the upper surface end of each of the combined cutting tables after being rotated 180 degrees with reference to the normal direction relative to the upper surface of the combined cutting tables as a reference, and the shape before rotating 180 degrees A combined cutting table, wherein the shape of the upper end portion of each of the combined cutting tables coincides with each other.

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