WO2014045872A1

WO2014045872A1 - Machine tool installation structure

Info

Publication number: WO2014045872A1
Application number: PCT/JP2013/073832
Authority: WO
Inventors: 佐々木　久雄; 正弥大橋
Original assignee: コマツＮｔｃ株式会社
Priority date: 2012-09-20
Filing date: 2013-09-04
Publication date: 2014-03-27
Also published as: JP2014061563A; JP5938320B2

Abstract

A machining center (1) is installed on an installation surface (F) such that a first foundation block (11) is installed between the installation surface (F) and a bed (3) on which the machine main body (2) of the machining center (10) is placed. A height position adjustment unit (10), which can adjust the position of the bed (3) in the height direction and which is linked to the bed (3) and the first foundation block (11), is disposed between the bed (3) and the first foundation block (11). Moreover, a horizontal position adjustment unit (20) which can adjust the position of the bed (3) in the horizontal direction and which is linked to the installation surface (F) and the first foundation block (11) is provided.

Description

Machine tool installation structure

The present invention relates to an installation structure for a machine tool such as a machining center or a lathe, and more specifically, a machine tool is installed on the installation surface by providing a foundation block between the bed and the installation surface of the machine tool. Related to the structure.

This type of machine tool installation structure is described in Patent Document 1, for example. In the installation structure, as shown in FIG. 9, a plurality of flat foundation blocks 111 are placed on an installation surface F such as a floor surface. The machine tool includes a bed 103 having a plurality of screw holes, and bolts 119 extending in the vertical direction are screwed into the screw holes. The tip of the bolt 119 is supported by the top surface of each foundation block 111. In this way, the machine tool is installed on the installation surface F with the foundation block 111 interposed between the installation surface F and the bed 103.

In such an installation structure, the level of the machine tool is adjusted by changing the tightening amount of each bolt 119 to adjust the position in the height direction of the portion where each bolt 119 is provided.

Japanese Patent Application Laid-Open No. 6-281094

In the conventional structure as described above, the bolt 119 is supported by the top surface of the foundation block 111. Therefore, for example, when the installation surface F is vibrated greatly due to an earthquake, the bolt 119 and the foundation block 111 are relatively displaced, the bolt 119 falls off the foundation block 111, and the entire machine tool including the bed 103 is in a predetermined installation position. There is a risk of displacement.

An object of the present invention is to provide a machine tool installation structure capable of suppressing displacement of a bed relative to a foundation block even when the installation surface vibrates greatly.

To achieve the above object, a machine tool installation structure according to the present invention includes a foundation block interposed between a machine tool bed and an installation surface. The installation structure is disposed between a bed and a foundation block, is connected to the bed and the foundation block, and is capable of adjusting a position in the height direction of the bed, and the installation A horizontal position adjusting unit connected to the surface and the base block and capable of adjusting the position of the bed in the horizontal direction.

According to such a configuration, the bed and the base block are integrally connected by the height position adjusting unit. Therefore, even when the installation surface is vibrated greatly due to, for example, an earthquake, the bed is preferably prevented from being displaced with respect to the foundation block. Moreover, the installation surface and the foundation block are integrally connected with the foundation block placed at a desired position in the horizontal direction by the horizontal position adjusting unit. For this reason, the force along the horizontal direction does not directly act on the bed from the unit that adjusts the position of the bed in the horizontal direction, and distortion of the bed can be suppressed.

As described above, according to the present invention, even when the installation surface vibrates greatly, it is possible to suitably suppress the displacement of the bed with respect to the foundation block.

The side view of the machine tool which concerns on one Embodiment of this invention. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. It is the side view seen from the direction of arrow B1 about the B section of Drawing 2, and is a figure showing a section in part. (A) is sectional drawing of the height position adjustment unit in embodiment of FIG. 1, (b) is an expanded sectional view of the vicinity of the front-end | tip of a 1st volt | bolt. FIG. 4 is a plan view showing the vicinity of a first basic block and a first fixed block viewed from the direction of arrow D in FIG. 3. The side view seen from the direction of arrow C1 about the C section of FIG. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. FIG. 7 is a plan view showing the vicinity of a second basic block and a second fixed block viewed from the direction of arrow G in FIG. 6. Sectional drawing which shows the installation structure of the conventional machine tool.

With reference to FIGS. 1 to 8, an installation structure of a machining center (machine tool) 1 according to an embodiment of the present invention will be described.

As shown in FIGS. 1 and 2, two left and right first foundation blocks 11 are disposed on the installation surface F below the front portion of the machining center 1, and two right and left second foundation blocks are disposed below the rear portion of the machining center 1. A block 31 is arranged. The machining center 1 includes a substantially rectangular parallelepiped bed 3, and the bed 3 is supported on the first foundation block 11 and the second foundation block 31. The first foundation block 11 and the second foundation block 31 are arranged corresponding to the four corners of the bed 3. The machining center 1 includes a machine body 2 on a bed 3.

The installation structure including the first basic block 11 will be described.

As shown in FIG. 3, the installation structure is arranged between the bed 3 and the first foundation block 11 and is connected to the bed 3 and the first foundation block 11 and adjusts the position of the bed 3 in the height direction. A possible height position adjustment unit 10 is provided.

Also, the installation structure includes a horizontal position adjustment unit 20 that is connected to the installation surface F and the first base block 11 and that can adjust the position of the bed 3 in the horizontal direction.

The configuration of the height position adjustment unit 10 will be described.

As shown in FIGS. 4A and 4B, a conical recess 11b is formed in the top surface 11a of the first base block 11, and a second vertical screw hole is formed at the center of the conical recess 11b. 11c is formed.

An extended portion 4 extends from the bed 3, and an insert member 5 is fixed to the extended portion 4. The insert member 5 is formed with a first vertical screw hole 5a. A hollow first bolt 13 is screwed into the first vertical screw hole 5a. An insertion hole 13b extending along the axial direction is formed at the center of the first bolt 13, and a female screw portion 13c is formed at the lower end of the insertion hole 13b. The first bolt 13 has a hemispherical tip, and the tip is supported by the conical recess 11 b of the first base block 11.

The second bolt 15 is inserted into the insertion hole 13b of the first bolt 13 from the base end, that is, the upper end. The screw portion at the tip of the second bolt 15 is screwed into the female screw portion 13c and the second vertical screw hole 11c. And the position of the height direction of the bed 3 in the position of the said 1st foundation block 11 is adjustable according to the tightening amount of the 1st volt | bolt 13 with respect to the 1st vertical screw hole 5a. Further, the first foundation block 11 and the first bolt 13 are fixed by screwing the second bolt 15 into the female screw portion 13c of the first bolt 13 and the second vertical screw hole 11c. As a result, the first foundation block 11 and the extending portion 4 of the bed 3 are fixed.

Further, a lock nut 17 is screwed to the first bolt 13 on the upper side of the insert member 5. When the lock nut 17 is tightened, the rotation of the first bolt 13 is prevented.

The configuration of the horizontal position adjustment unit 20 will be described.

As shown in FIGS. 3 and 5, a first lateral screw hole 11 d extending along the horizontal direction is formed on the front surface (side surface) of the first foundation block 11.

The second screw member 25 is screwed into the first horizontal screw hole 11d. A lock nut 27a is screwed onto the second screw member 25, and the rotation of the second screw member 25 is prevented by tightening the lock nut 27a.

A second lateral screw hole 25 a extending along the axial direction of the second screw member 25 is formed at the base end of the second screw member 25. The tip of the first screw member 23 is screwed into the second lateral screw hole 25a.

The first fixing block 21 is fixed on the installation surface F by anchor bolts 29. The first fixed block 21 is formed with an insertion hole 21a extending along the horizontal direction. The insertion hole 21a has an oval shape that is long in the vertical direction. The first screw member 23 is inserted into the insertion hole 21a.

Further, a pair of lock nuts 27 b are screwed to the first screw member 23 via a pair of washers 28 so as to sandwich the first fixed block 21. By tightening the lock nut 27b, the rotation of the first screw member 23 is prevented.

The position of the bed 3 in the horizontal direction can be adjusted according to the tightening amount of the first screw member 23 with respect to the second lateral screw hole 25a.

The installation structure including the second basic block 31 will be described. As shown in FIG. 2, the installation structure including the second foundation block 31 is symmetrical.

As shown in FIG. 6, the installation structure is arranged between the bed 3 and the second foundation block 31 and is connected to the bed 3 and the second foundation block 31 and adjusts the position of the bed 3 in the height direction. A possible height position adjustment unit 30 is provided. The height position adjusting unit 30 has the same configuration as the height position adjusting unit 10 described above.

Further, the installation structure includes a fixing unit 40 that is connected to the installation surface F and the second foundation block 31 and fixes the second foundation block 31 to the installation surface F.

The configuration of the fixed unit 40 will be described.

6 to 8, a plate 43 is connected to the rear surface of the second base block 31 by at least one bolt (in the illustrated embodiment, two) bolts 44. The plate 43 extends from the rear surface of the second base block 31 toward the outside of the bed 3 along the horizontal direction, and includes a first end and a second end facing each other along the horizontal direction. The plate 43 is connected to the rear surface of the second foundation block 31 at the first end.

The second fixed block 41 is fixed on the installation surface F with anchor bolts 49. The second end of the plate 43 is connected to the second fixed block 41 by at least one bolt 45 (two in the illustrated embodiment).

Next, the operation of this embodiment will be described.

When adjusting the level of the machine body 2, the lock nut 17 is loosened in the required base blocks 11, 31 of the four base blocks 11, 31, and the second bolt 15 is connected to the second vertical screw. It is removed from the hole 11c. In this state, the position of the bed 3 in the height direction at the position of the base blocks 11 and 31 is adjusted by changing the tightening amount of the first bolt 13 with respect to the first vertical screw hole 5a. Then, after the position of the bed 3 in the height direction is adjusted, the lock nut 17 is tightened and the second bolt 15 is tightened in the second vertical screw hole 11c.

In this state, the bed 3 is connected to the foundation blocks 11 and 31 via the height

position adjustment units

10 and 30. Therefore, even when the installation surface F vibrates greatly due to an earthquake or the like, the bed 3 is preferably suppressed from being displaced with respect to the foundation blocks 11 and 31.

Further, in the state where the lock nut 27b is loosened, the tightening amount of the first screw member 23 with respect to the second lateral screw hole 25a is adjusted, and the position of the bed 3 in the horizontal direction is adjusted according to the tightening amount. Is done. For example, the installation surface F has fine irregularities, and there may be a difference between the height of the first basic block 11 and the height of the first fixed block 21. Even in this case, the shift between the height of the first screw member 23 connected to the first base block 11 and the height of the first fixing block 21 is absorbed by the oval insertion hole 21a.

According to the machine tool installation structure according to the present embodiment described above, the following effects can be obtained.

(1) In the installation structure of the machining center 1, the machining center 1 is installed on the installation surface F through the foundation blocks 11 and 31 between the bed 3 on which the machine body 2 is mounted and the installation surface F. Further, between the bed 3 and the foundation blocks 11 and 31, there are provided height

position adjustment units

10 and 30 which are connected to the bed 3 and the foundation blocks 11 and 31 and can adjust the position of the bed 3 in the height direction. It has been. Further, a horizontal position adjusting unit 20 that is connected to the installation surface F and the first foundation block 11 and that can adjust the position of the bed 3 in the horizontal direction is provided.

According to such a configuration, the bed 3 and the foundation blocks 11 and 31 are integrally connected. Therefore, even if the installation surface F vibrates greatly due to, for example, an earthquake, the bed 3 is preferably suppressed from being displaced with respect to the foundation blocks 11 and 31. Moreover, the installation surface F and the 1st foundation block 11 are integrally connected by the horizontal position adjustment unit 20 in the state by which the 1st foundation block 11 was arrange | positioned in the desired position in the horizontal direction. For this reason, the force along the horizontal direction does not directly act on the bed 3 from the unit that adjusts the position of the bed 3 in the horizontal direction, and distortion of the bed 3 can be suppressed.

Therefore, even if the installation surface F vibrates greatly, the bed 3 can be suitably prevented from being displaced with respect to the foundation blocks 11 and 31.

(2) The position of the bed 3 in the horizontal direction can be adjusted according to the tightening amount of the first screw member 23 with respect to the second lateral screw hole 25a. For this reason, for example, the machining center 1 can be installed better than when an adjustment unit that adjusts the bed 3 by directly pressing or pulling the bed 3 is used. That is, the position of the bed 3 is preferably suppressed from being displaced with respect to the horizontal position adjustment unit 20, and excessive stress from the horizontal position adjustment unit 20 on the bed 3 is suppressed. Therefore, it can suppress suitably that a bed 3 becomes distorted.

The machine tool installation structure according to the present invention is not limited to the configuration exemplified in the above-described embodiment, and can be implemented as, for example, the following forms appropriately modified.

-The internal thread part 13c formed in the lower end part of the insertion hole 13b of the 1st volt | bolt 13 can also be abbreviate | omitted. In this case, the

bolts

13 and 15 can be fixed to each other by pressing the head portion 15a of the second bolt 15 against the head portion 13a of the first bolt 13 via the washer 15b.

In the above embodiment, the configuration including the two first basic blocks 11 and the two second basic blocks 31 is exemplified, but the second basic block may be replaced with the first basic block. That is, it may be configured to include three first basic blocks and one second basic block, or may be configured to include four first basic blocks without including the second basic block. Good.

・ The number of basic blocks is not limited to four, and may be three or five or more.

· An oil pan for collecting oil from the machine main body 2 can be provided immediately below the bed 3. In this case, the foundation blocks 11 and 31 may be disposed thereon with the inner bottom surface of the oil pan as the installation surface F.

DESCRIPTION OF SYMBOLS 1 ... Machining center (machine tool), 2 ... Machine main body, 3,103 ... Bed, 4 ... Extension part, 5 ... Insert member, 5a ... 1st vertical screw hole, 9 ... Oil pan, 10 ... Height

position adjustment Unit

11, 111... First foundation block 11 a. Top surface 11 b. Conical recess 11 c. Second vertical screw hole 11 d First lateral screw hole 13 13 First bolt 13 a Head 13b: insertion hole, 13c: female thread, 15 ... second bolt, 15a ... head, 15b ... washer, 17 ... lock nut, 20 ... horizontal position adjustment unit, 21 ... first fixed block, 21a ... insertion Hole, 23 ... 1st screw member, 25 ... 2nd screw member, 25a ... 2nd horizontal screw hole, 27a, 27b ... Lock nut, 28 ... Washer, 29 ... Anchor bolt, 30 ... Height position adjustment unit , 31 ... 2nd basis Rock, 31d ... horizontal screw hole, 40 ... fixing unit, 41 ... second fixed block, 43 ... plate, 44 ... bolt, 45 ... bolt, 49 ... anchor bolt, 119 ... bolt, F ... mounting surface.

Claims

In the machine tool installation structure for installing the machine tool on the installation surface with a foundation block interposed between the machine tool bed and the installation surface,
A height position adjustment unit disposed between the bed and the foundation block and connected to the bed and the foundation block and capable of adjusting a position in the height direction of the bed;
A machine tool installation structure comprising: a horizontal position adjustment unit coupled to the installation surface and the base block and capable of adjusting a horizontal position of the bed.
The basic block has a concave portion on a top surface thereof, and a second vertical screw hole formed at the center of the concave portion,
The height position adjustment unit includes:
An extending portion extending from the bed, the extending portion having a first vertical screw hole extending along a vertical direction;
A hollow first bolt that is screwed into the first vertical screw hole, the first bolt of which the tip is supported by the recess of the foundation block;
A second bolt that is inserted into the inside of the first bolt from its base end and is screwed into a second vertical screw hole of the foundation block to connect the first bolt and the foundation block; With
The machine tool installation structure according to claim 1, wherein a position of the bed in the height direction can be adjusted in accordance with a tightening amount of the first bolt with respect to the first vertical screw hole.
3. The machine tool installation structure according to claim 2, wherein a female screw portion into which the second bolt is screwed is formed in the hole of the first bolt.
The foundation block has a first lateral screw hole on its side surface,
The horizontal position adjustment unit includes:
A fixed block fixed to the installation surface, the fixed block having an insertion hole extending along a horizontal direction;
A first screw member inserted into the insertion hole;
A second screw member having a threaded portion that is screwed into the first transverse screw hole of the base block and having a second transverse screw hole formed at a proximal end thereof, wherein the second transverse screw The second screw member with which the tip of the first screw member is screwed into the hole;
The position in the horizontal direction of the bed can be adjusted according to the tightening amount of the first screw member with respect to the second lateral screw hole. The machine tool mounting structure described.