JP2001038577A - Column moving type machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make structure, blocking lateral, outward, and rearward flying of chips and cutting oil, excellent in durability and besides to reduce a cost and to decrease the lateral width of the whole. SOLUTION: A slide is longitudinally movable over a bed 1, a column 6 is laterally movably mounted on the slide, and the blade tool mounting end part of a main spindle 10 is vertically movably mounted on the front of the column 6. Further, when partition plate devices 16 and 16 to longitudinally partition a space above the bed 1 are mounted on the right and left side of the front of the column 6, the partition plate devices 16 use hinges 18 and 26, an inner partition plate 19, and the outer partition plate 22 and are intercoupled in an inverted V-shape to effect butterfly 2 operation. These devices are mounted among rise members 24 erected in three spots on the right and let vertical side edges of the column 6 and at the slide on the side positioned facing the vertical side edges.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable column type machine tool.

[0002]

2. Description of the Related Art A feed bar is mounted on a bed so that it can move back and forth, and a column can be mounted on the feed bar so that it can move left and right.
2. Description of the Related Art There is a column moving type machine tool in which a cutting tool mounting end of a spindle is vertically movably mounted on a front surface of a column.

[0003]

In such a machine tool, it is inevitable that cutting chips are scattered over a wide area including the left and right side portions of the column and the rear portion thereof. It will accumulate.

[0004] Cleaning of the cutting debris accumulated in such a manner requires a lot of trouble, and impairs efficient use of labor. In addition, the scattering of cuttings over a wide range is not limited to the front of the column, the side and rear configuration,
It is necessary to provide a structure for the accumulation of cutting chips. In order to cope with such an actual situation, a machine tool equipped with a left-right partition plate device for partitioning a bed back and forth on the front surface of a column or on each side of the column has been developed.

Heretofore, as this partition plate device, conventionally, a structure in which a plurality of slide-type covers are stacked in multiple stages so as to be able to expand and contract in the left-right direction, and a flexible partition plate is wound up and down in the left-right direction and stored. There are structures that make it possible. In the former case, the structure is complicated and heavy and expensive, and the machine width becomes large because the overall width in the left-right direction is not smaller than the left-right width of one cover. In the case of the latter, the partition plate is thin, so that the durability is inferior, and the winding operation is liable to be impaired due to the attachment of cutting chips and the like. An object of the present invention is to provide a movable column machine tool provided with a partition plate device capable of reasonably coping with such a situation.

[0006]

According to a first aspect of the present invention, to achieve the above object, as described in claim 1, a feed base can be moved back and forth on a bed, and a column can be moved right and left by a feed base. In addition to being movably mounted, the cutting tool mounting end of the main spindle is vertically movably mounted on the front of the column, and further, partitioning devices are provided on each of the left and right sides of the front of the column to partition the bed back and forth. Each partition plate device uses a hinge, an inner partition plate, and an outer partition plate, and is configured to be connected in an inverted V-shaped cross section to operate a butterfly wing. It is attached between the upright members erected at the feed stand location on the side facing the edge.

According to a second aspect of the present invention, as described in claim 2, a feed base is mounted on a bed so as to be movable back and forth, and a column is mounted on the feed base so as to be movable left and right.
The cutting tool mounting end of the main shaft is mounted on the front surface of the column so as to be vertically movable, and further, on each of the left and right sides of the front surface of the column, a partition plate device for partitioning the bed back and forth is provided. Is connected between one vertical edge of the column and an upright member erected on the corresponding side of the feed stand so that two to six rectangular partition plates can be folded in a left-right direction 99/99. The partition plate means is mounted.

According to the first or second aspect of the present invention, the width of the partition plate device in the left-right direction is equal to the sum of the thicknesses of the outer and inner partition plates under the condition that the column is moved to the shortest position by the left-right movement. It can be approximated to the extent,
The left and right width of the machine tool is greatly reduced. In addition, the partition plate device is excellent in durability by forming the outer and inner partition plates as rigid plates, has a simple structure, maintains smooth operation for a long time, and is manufactured at low cost. Will be. Further, the left and right partition plate devices protrude forward at the left and right sides of the main shaft, so that cutting chips and the like generated by the cutting tool fixed to the front end of the main shaft and scattered right and left rear project to the left and right front. And is prevented from flying not only to the rear but also to the right and left outward.

[0009]

1 is a plan view showing a machining center which is a kind of machine tool according to the present invention, FIG. 2 is a side view of the machining center, and FIG. 3 is a front view of the machining center. An embodiment of the present invention will be described based on FIG.

In these figures, reference numeral 1 denotes a bed, and a part of the upper surface is formed as a column support surface 1a. 2 and 2 are guide rails fixed to the column support surface 1a in the front-back direction f1.

Reference numeral 3 denotes a feed table which is slidably engaged with the guide rails 2 and 2 and is driven and fed by a motor 4 in the front-rear direction f1. Guide rails 5 in the left and right direction are fixed to the feed base 3, and the columns 6 are engaged with the guide rails 5 and 5 so as to be slidably displaceable, and are driven by the motor 7 in the left and right direction f2. Has been made.

A spindle device 8 is mounted on the column 3 in a front-rear direction, and is driven by a motor 9 to be vertically driven on a fixed track. At this time, the spindle device 8 includes a front-rearward spindle 10 having a front end serving as a cutting tool mounting end.
, A bearing tube 11 supporting the main shaft 10, and a motor (not shown) for rotating the main shaft 10.

A cover device 12 is provided on the front surface of the column 6. The cover wall device 12 is formed by stacking a plurality of metal plates 13 a on a vertical movement path on each of the upper and lower sides of the main shaft 10 so as to be expandable and contractible. The telescopic wall 13 is provided so that when the main spindle device 8 moves up and down, the telescopic wall 13 expands and contracts up and down to cover the front surface of the column 6 at all times.

Reference numeral 14 denotes a cover device mounted on the front side of the feed base 3 so as to cover the guide rails 2 and 2, and slides a plurality of metal plate-like bodies 14a having an upper surface portion and left and right side portions in the front-rear direction f1. The column 6 is formed by being overlapped so that it can move freely.
Irrespective of the forward / backward movement of the guide rails 2, 2 is maintained.

Numerals 15 and 15 denote box-shaped covers fixed to the upper surface of the feed base 3. Side plates 15 a and 15 b for covering the left and right sides of the movable range space of the column 6, and top plates for covering the top surface of the space 15c and a rear plate 1 for covering the rear surface of the space.
5d. At this time, the top plate 15c is brought as close as possible to the upper surface of the column 6 so that foreign matter flying from the front end of the spindle 10 does not easily enter between the upper surface of the column 6 and the top plate 15c.

Reference numerals 16 and 16 denote a column 6 and left and right beds 1 respectively.
It is a pair of partition plate devices arranged on the left and right sides of the front surface of the column 6 to partition the upper part back and forth. The representative one of the pair of partition plate devices 16, 16 will be described as follows.

That is, the vertical edge on the rear side of the inner partition plate 19 is pivoted about one specific vertical axis 20 on one vertical side edge of the column 6 via the column mounting member 17 and the hinge 18 shown in FIGS. It is freely movable and pivotally attached to a state in which it protrudes obliquely outward, and the outer partition plate 22 is swingably and obliquely pivotable about a specific longitudinal axis 23 via a hinge 21 on the front vertical side edge of the inner partition plate 19. Pivot outwardly and outwardly. The front vertical side edge of the outer partition plate 22 is connected to a connecting piece 25 and a hinge 26 by an upright member 24 erected on the upper surface of the feed base 3 for supporting the corresponding side plate 15a. Are pivotally connected via a specific axis 27 so as to be swingable.

A rear extension plate 28, which extends the partition plate 19 somewhat rearward in the direction of the partition plate 19 and covers the hinge 18, is fixed to the rear vertical edge of the inner partition plate 19. A front extension plate is provided on the front vertical side edge of the inner partition plate 19 so as to further extend the partition plate 19 to the front side in the direction of the partition plate 19 to cover the hinge 21 from the center of the column 6. Fix 29.

At this time, the inner partition plate 19 and the outer partition plate 2
It is preferred that the upper edge 2 is such that its upper edge is as close as possible to the top plate 15c and the lower edge extends at least below the upper surface of the feed base 3. Reference numeral 30 denotes a work support fixed on the bed 1, and an automatic tool changer (ATC) (not shown) is provided at an appropriate position in relation to the spindle device 8.

Next, an example of use of the product of the present invention configured as described above will be described. When processing the work, for example, the work is held on the work support table 30, and after inputting necessary information to a control device (not shown), the operation is started. As a result, the necessary motors 4, 7, 9 are operated, and the main shaft 10 is fed forward and backward, left and right or up and down, and cutting oil is supplied to a cutting point of the work.
The cutting tool mounted on the cutting tool mounting end of the main shaft 10 is formed in the same shape as the main shaft 10 and is rotated by a motor (not shown) to automatically cut the work.

When the column 6 is moved in the left-right direction f2, the partition plate device 16 is expanded and contracted in the left-right direction f2 because the inner and outer partition plates 19, 22 are swung around the hinges 18, 21, 26. Allow the move. At this time, the inner and outer partition plates 19 and 22 of the left and right partition plate devices 16 and 16 sandwiching the spindle device 8 are V-shaped in a plan view and are in a state of projecting forward on both left and right sides of the spindle 10. When the column 6 is moved in the front-back direction f1, the cover device 14 expands and contracts in the front-back direction f1 to allow the movement.

During the machining, the cutting oil is rushed toward the work and the cutting tool, so that the spray scatters the cutting chips of the work in all directions, and the rotation of the cutting tool similarly causes the cutting of the work. It scatters cutting chips and cutting oil.

A part of the cutting chips scattered in all directions collides with the front surface of the metal plate 13a of the cover device 12 and falls.
6 and 16 collides with the inner partition plates 19 and 19, and subsequently moves on the vertical surface of the partition plate 19 to the upper surface 1a of the bed 1 by its own weight or by being washed away by the cutting oil. It is not scattered to the left and right of the plate devices 16, 16 or to the rear of the partition plate devices 16, 16.

Cutting chips and cutting oil moving upward and rearward may enter the gap between the top plate 15c and the upper surface of the column 6 and the gap between the top plate 15 and the upper end edges of the partition plate devices 16, 16. However, since the amount is very small, there is practically no problem. Further, cutting chips and cutting oil are removed by the cover device 14.
But does not directly accumulate on the guide rails 2, 2.

Each of the partitioning devices 16 in the above embodiment can be modified as follows: one vertical edge of the column 6 and an upright standing at the corresponding feed base. An accordion-type partition plate means 16 in which two to six rectangular partition plates are connected so as to be able to fold in the left-right direction ninety-nine ninety is mounted between the member 24 and the member 24. At this time, it is preferable to provide a guide rail for guiding the plurality of rectangular partition plates in the left-right direction. Also according to this, the utility according to the above embodiment can be obtained.

FIG. 5 shows a double-type machining center obtained by modifying the machine tool, and the same reference numerals are given to substantially the same parts as those in the above embodiment.

[0027]

According to the first or second aspect of the present invention, when the left and right width of the partition device is set to the shortest state by the left and right movement of the column, it becomes significantly smaller than in the prior art. The left-right width of the machine tool that can obtain the same amount of column left-right movement can be significantly reduced.

Further, the partition plate device has excellent durability by forming the outer and inner partition plates as rigid plates, and has a simple structure, maintains smooth operation for a long period of time, and is inexpensive. It will be manufactured.

Further, since the left and right partition plate devices protrude forward at the right and left sides of the main shaft, cutting chips generated by the cutting tool at the front end of the main shaft and scattered left and right are blocked by the left and right partition plate devices. As a result, it is possible to effectively prevent scattering not only to the rear but also to the left and right.

[Brief description of the drawings]

FIG. 1 is a plan view showing a machining center which is a kind of machine tool according to the present invention.

FIG. 2 is a side view of the machining center.

FIG. 3 is a front view of the machining center.

FIG. 4 shows a partition plate device of the machining center,
Is a side view and B is a plan view.

FIG. 5 is a plan view showing a double-type machining center which is a kind of machine tool according to the present invention.

[Explanation of symbols]

 1 Bed 3 Feeder 6 Column 10 Main shaft 16 Partition device 19 Inner partition plate 20 Specific vertical axis 22 Outside partition plate 23 Specific vertical axis 24 Standing member

Claims (2)

[Claims] 1. A feed bar is mounted on a bed so as to be movable back and forth, and a column is mounted on the feed bar so as to be movable left and right.
At the front of the column, the cutting tool mounting end of the main shaft is installed so as to be able to move up and down, and further, at each of the left and right sides of the front of the column, partitioning devices that partition the bed back and forth are installed. A structure in which an inner partition plate and an outer partition plate are connected in a reverse v-shaped cross section to operate a butterfly wing, and a left and right vertical side edge of a column and a feed plate on a side facing the vertical side edge A movable column machine tool, which is mounted between standing members erected at locations. 2. A feed bar is provided on the bed so as to be movable back and forth, and a column is provided on the feed bar so as to be movable left and right.
The cutting tool mounting end of the main shaft is mounted on the front surface of the column so as to be vertically movable, and further, on each of the left and right sides of the front surface of the column, a partition plate device for partitioning the bed back and forth is provided. Is connected between one vertical edge of the column and an upright member erected on the corresponding side of the feed stand so that two to six rectangular partition plates can be folded in a left-right direction 99/99. A movable column machine tool having a configuration in which a partition means is mounted.