KR100732103B1 - Machine tool - Google Patents

Abstract

The present invention is a pedestal base member (2), a column fixed to the pedestal base member (2), a spindle head mounted on the column, and a pedestal base member (2), and the front side space of the column A machine tool provided with a splash cover for covering the pedestal, wherein the pedestal base member (2) is installed so that the splatter coolant does not scatter from outside between the column and the side wall of the pedestal base member during the cleaning operation of the cutting chip using the coolant. A pair of membrane plate members 15 and 16 in a substantially horizontal posture extending from the pedestal portions 2g and 2h to the left and right side walls 2c and 2d are respectively installed at height positions near the upper ends of the left and right side walls 2c and 2d. At the same time, the left diaphragm member 15 is integrally formed with the mounting pedestal portion 2g and the left wall 2c, and the right diaphragm member 16 is fitted with the mounting pedestal portion 2h and the right wall 2d. It is configured integrally.

Pedestal, Splash Cover, Column, Coolant, Pedestal Base Member

Description

Machine tool {MACHINE TOOL}

1 is a perspective view of a machine tool according to an embodiment of the present invention.

2 is a right side view of the machine tool.

3 is a perspective view from behind of the pedestal base member;

4 is a plan view of a pedestal base member;

Fig. 5 is a side elevational view taken along line E-E of Fig. 4;

Fig. 6 is an end side view of the F-F line of Fig. 2;

Fig. 7 is a diagram corresponding to Fig. 3 according to the modification.

<Explanation of symbols for the main parts of the drawings>

1: machine tool

2: pedestal base member

3: working table

4 column

5: spindle head

6: tool changer

7: control box

15: left side plate member

16: right side plate member

17: reinforcement plate

[Document 1] Japanese Unexamined Patent Publication No. 22042

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine tool, and in particular, when an operator sprays a coolant from a nozzle gun or the like to clean a cutting powder or a cutting chip after cutting a workpiece, the scattering of the coolant used for cleaning is prevented. To a machine tool.

Background Art Conventionally, a machine tool capable of numerical control (so-called NC control) has a column, a spindle head equipped with the column, a work table for moving a loaded work piece, and the like, on a pedestal base member. In such a machine tool, various cutting processes, such as cutting, grinding | polishing, hole formation, etc. can be given to a workpiece | work by the tool attached to the spindle head based on a predetermined process program.

For example, the machine tool (vertical machining center) described in Japanese Patent Laid-Open No. 20054242 has a column that supports the spindle head on the base so as to be movable up and down, and is movable in the X direction and the Y direction. Saddles and work tables are provided. The machine tool performs various cutting operations on the work piece positioned on the work table while moving the work table.

Machine tools of this kind generally have a plurality of cleaning nozzles facing the work table or the tool. The said machine tool wash | cleans cutting chips, such as the cutting powder which generate | occur | produced at the time of cutting, by spraying a cooling liquid from these washing | cleaning nozzles during the process of a workpiece. In such cleaning, a splash cover (enclosure) covers the space on the front side of the column so that the cutting chips generated during cutting and the cooling liquid during cleaning do not scatter to the outside.

After cutting of the work piece, a large amount of cutting chips generated during the cutting work are gathered on the inclined bottom wall of the base, so that the worker performs cleaning. Specifically, the operator opens and closes the opening / closing door provided on the front face of the splash cover, injects a coolant from the cleaning nozzle with a hose, and cleans the cutting chips collected on the bottom wall to the bottom wall of the left and right sides of the column. It flows to the cooling tank installed in the back side of a base via a channel | path, and it wash | cleans.

However, when the worker performs the cleaning operation by opening the opening / closing door of the splash cover front surface in this manner, the above-described splash cover prevents the splashing liquid from splashing by the cleaning so as not to scatter to the outside. On the front face side of the column, the splash cover covers the space on the front face side of the column, thereby preventing scattering of the cooling liquid used for cleaning.

However, the lower end of the rear wall of the splash cover is located above the bottom wall so as not to block the cleaning passage. Of the washing passages formed on both the left and right sides of the base, the upper side of the passage portion corresponding to the side portion of the column is opened so as not to be covered at all. Therefore, when an operator injects a strong hydraulic pressure cooling liquid from the cleaning nozzle and cleans the rear side of the splash cover from the opening / closing door side, the splatter cooling liquid flows from the side of the column to the outside through the lower side of the splash cover. Thereby, there is a problem that the bottom surface is contaminated with the cooling liquid.

According to the machine tool according to claim 1 of the present invention, in the machine tool provided with a pedestal base member, a column, a spindle head, and a splash cover, the pedestal base member includes an installation pedestal part for fixing a column, a bottom part wall, and a left wall. And a right side wall and a front side wall, and a pair of membrane plate members extending from the mounting pedestal portion of the pedestal base member to the left and right side walls at a height position near the upper end of the left and right side walls. This ensures that the splash cover ensures that the coolant used for cleaning is scattered to the outside on the front surface side of the column when the operator sprays the cooling liquid from the cleaning nozzle every time the cutting processing is finished. Can be prevented.

When the operator sprays the coolant to clean the rear side of the splash cover, even if the splatter coolant passes through the lower side of the splash cover, the cooling liquid from the side of the column to the upper side of the column in the cleaning passages formed on the left and right sides of the pedestal base member, respectively. Shattering can be reliably prevented with a pair of membrane members. Therefore, at the time of washing | cleaning operation, the cooling liquid used for washing | cleaning makes sure of the countermeasure which does not scatter from any part of a machine tool to the outside, and can prevent the contamination of a floor surface reliably.

According to the machine tool according to claim 2 of the present invention, the left membrane plate member is integrally formed with the mounting pedestal portion and the left wall, and the right membrane plate member is integrally formed with the mounting pedestal portion and the right wall. As a result, the connection strength between the mounting pedestal portion and the left wall is greatly improved, and the connection strength between the mounting pedestal portion and the right wall is significantly improved. Therefore, even if the load accompanying cutting process acts on a column, stability of a column, ie, cutting precision, can be improved. In addition, it exhibits the same effect as that of claim 1.

According to the machine tool according to claim 3 of the present invention, the left and right membrane plate members are provided at a lower height position from the upper end portions of the left and right side walls. As a result, even when the coolant leaks from the rear end of the splash cover and falls on the left side plate member, the leaked coolant is cooled by the left trough formed of the left wall, the mounting pedestal portion, and the lower left side plate member. Guided towards the tank. Even if the leaked coolant falls on the right side plate member, the leaked coolant is led to the cooling tank by the right trough formed by the right side wall, the mounting pedestal portion, and the lower right side plate member. Therefore, outflow of the cooling liquid which fell on these left and right membrane plate members to outside can be reliably prevented. In addition, the same effects as in Claim 2 can be obtained.

According to the machine tool according to claim 4 of the present invention, the left side plate member is detachably provided at the upper end of the mounting pedestal portion and the left wall. The right side plate member is detachably provided at the mounting pedestal part and the upper end of the right wall. As a result, when the worker performs the cleaning operation using the cooling liquid, scattering of the cooling liquid from the passage portion corresponding to the side of the column among the cleaning passages formed on each of the left and right sides of the pedestal base member to the outside by the membrane plate member. It can be reliably prevented.

The operator can remove the membrane plate member from time to time as necessary when the membrane plate members on both the left and right sides are disturbed, such as when cleaning the bottom wall. In addition, it exhibits the same effect as that of claim 1.

According to the machine tool of Claims 5 and 6 of the present invention, the left and right membrane plate members each have a concave groove of an orientation parallel to the longitudinal direction of the pedestal base member. As a result, even if the coolant leaked from the rear end of the splash cover falls on the left and right faceplate members, the outflow of the coolant to the outside can be reliably prevented by the gutter function by the recessed groove formed in the faceplate member. have. In addition, the same effects as in Claims 1 to 4 are exhibited.

The machine tool in the present embodiment includes a pair of membrane plate members extending from the mounting pedestal portion provided on the pedestal base member to the column base member at a height position near the upper end of the left and right side wall. As a result, when the operator injects the cooling liquid from the cleaning nozzle to perform the cleaning operation, the membrane plate member blocks the upper side of the cleaning cooling passage so that the cleaning cooling liquid does not scatter to the outside.

The machine tool 1 which is a vertical machining center is demonstrated.

As shown in Figs. 1 to 3, the machine tool 1 is provided with a base member 2 having a substantially rectangular shape when viewed from a plane on the bottom surface. The bottom wall 2a of the pedestal base member 2 is provided with a pair of left and right guide rail pedestals 2e and 2f each having guide rails formed in the front-rear direction. On these guide rails, the Y direction drive mechanism (not shown) which moves the worktable 3 for positioning and placing a workpiece (not shown) in the Y direction (front and rear direction), and the work table 3 in the X direction (left and right) Direction) is provided with an X-direction driving mechanism (not shown).

The pedestal base member 2 has a pair of left and right mounting pedestals 2g and 2h which are integrally vertically mounted on the bottom wall 2a along the front-rear direction at the rear portion. The mounting pedestals 2g and 2h are fixed by mounting the column 4 vertically. The column 4 supports the spindle head 5 so as to be movable up and down.

This machine tool 1 is equipped with the tool changer 6 which alternately switches the some tool attached to the spindle head 5 as needed. The machine tool 1 has a control box 7 incorporating a control device for controlling the machine tool 1 on the rear side of the column 4.

As shown in Fig. 3, the pedestal base member 2 is provided with a bottom wall 2a, a front side wall 2b, a left wall 2c, and a right wall 2d. The bottom wall 2a has a substantially rectangular shape, and spans the entire pedestal base member 2. The front side wall 2b integrally formed in the vertical direction is provided in the front side of the bottom part wall 2a. On the left side of the bottom part wall 2a, the left side wall 2c integrally formed in the vertical orientation is provided. The right side wall 2d integrally formed in the vertical orientation is provided on the right side of the bottom wall 2a. However, as shown in FIG. 5, the bottom part wall 2a is provided with the downward gradient toward back.

As shown in Figs. 1 and 2, the pedestal base member 2 is provided with a cooling tank 10 for storing a cooling liquid for use for cooling and washing on the rear side thereof. The circulation pump 12 which drives the cooling liquid stored in the cooling tank 10 by the pump motor 11 circulates and supplies to a washing | cleaning nozzle (not shown).

That is, although illustration is abbreviate | omitted, this machine tool 1 is equipped with many nozzles, such as the spray nozzle toward the cutting tool attached to the spindle head 5, and the spray nozzle toward the work table 3. As shown in FIG. These nozzles spray coolant during the cutting of the workpiece to not only cool the tool or the workpiece, but also cool the cooling chips through the cleaning cooling passages 2i and 2j on both the left and right sides, which will be described later. Rinse with tank 10 to flow.

As shown in FIG. 1, this machine tool 1 is provided with the large splash cover 13 which covers the front side space of the column 4. As shown in FIG. The splash cover 13 is a box-shaped cover which opens the lower side and the upper side. The lower end of the front side wall of the splash cover 13 is fixed to the inner surface of the front side wall 2b. The lower left wall portion of the splash cover 13 is fixed to the inner surface of the left wall 2c. The lower end of the right wall of the splash cover 13 is fixed to the inner surface of the right wall 2d.

1 and 2, however, the rear wall of the splash cover 13 reaches the front surface of the column 4. The lower end of the splash cover 13 is located above the bottom wall 2a so as not to block the cleaning cooling passages 2i and 2j described later.

3 to 5, the pedestal base member 2 includes a left guide rail pedestal portion 2e, a mounting pedestal portion 2g, and a left wall 2c which are vertically installed on the bottom wall 2a. The left side cooling cooling path 2i for flowing the cooling liquid wash | cleaned between the inside and outside into the cooling tank 10 is provided. The pedestal base member 2 allows the cooling guide 10 to flow the coolant cleaned between the right guide rail pedestal 2f and the mounting pedestal 2h and the right wall 2d vertically installed on the bottom wall 2a. The right side washing | cleaning cooling path 2j for this is provided.

As shown in Figs. 3 and 6, the pedestal base member 2 is positioned substantially horizontally at a lower height position from the upper end of the left wall 2c, from the left mounting pedestal portion 2g to the left wall 2c. The left membrane plate member 15 is provided. The left membrane plate member 15, the mounting pedestal portion 2g, and the left wall 2c are integrated. The pedestal base member 2 is provided with the right sideboard member 16 in a substantially horizontal position from the upper end of the right wall 2d to the lower height position from the right mounting pedestal portion 2h to the right wall 2d. have. The right side plate member 16, the mounting pedestal portion 2h, and the right side wall 2d are integrated.

That is, as shown in Fig. 5, the right side plate member 16 is the rear side of the splash cover 13, is provided to cover the upper side of the right bottom part wall 2a of the column 4, and the mounting pedestal part 2h and the right side wall 2d are integrated. Similarly, the left membrane plate member 15k is also integrated with the mounting pedestal portion 2g and the left wall 2c. 3 to 6, when viewed from the front, a plurality of triangular reinforcement plates (ribs) 17 reinforce the horizontal left membrane plate member 15 and the left wall 2c. . When viewed from the front, a plurality of reinforcing plates (ribs) 18 having a triangular shape reinforce the horizontal right membrane plate member 16 and the right wall 2d.

Next, the operation and effect of the machine tool 1 will be described.

When the cutting processing is finished, the operator opens the opening / closing door provided at the front side of the splash cover 13 to inject the cooling liquid toward the rear from the cleaning nozzle (not shown) with the hose. By this injection, the cutting chip remaining on the upper surface or the bottom wall 2a of the work table 3 flows out to the left cleaning cooling passage 2i or the right cleaning cooling passage 2j. Then, the cooling liquid is caused to flow to the rear cooling tank 10 via the left and right cleaning cooling passages 2i and 2j to perform the cleaning operation.

Thus, every time a series of cutting processes is complete | finished, an operator injects a cooling liquid from the washing | cleaning nozzle with a hose, and performs a washing | cleaning operation. At this time, since the front-side space of the column 4 is covered with the splash cover 13, the splash cover 13 ensures that the splashed coolant is scattered to the outside by being used for cleaning by the cleaning nozzle with a hose. Can be prevented.

The pedestal base member 2 has a height near the upper end of the left and right sidewalls 2c and 2d from the mounting pedestals 2g and 2h to the left and right sidewalls 2c and 2d. Equipped at the location. Thereby, when an operator injects a coolant and wash | cleans the back side of the splash cover 13, even if the splatter coolant passes below the splash cover 13, washing | cleaning provided in the left and right both sides of the base base member 2 is carried out. In the cooling passages 2i and 2j, scattering to the outside of the cooling liquid from the side of the column 4 to the outside can be reliably prevented by the membrane plate members 15 and 16.

Therefore, at the time of a washing | cleaning operation, the countermeasure against scattering which does not scatter the coolant used for washing | cleaning from outside any part of the machine tool 1 is made perfect, and contamination of a floor surface can be prevented reliably.

The left side plate member 15 is integrally formed with the mounting pedestal portion 2g and the left side wall 2c, and the right side plate member 16 is integral with the mounting pedestal portion 2h and the right side wall 2d. It consisted of. As a result, the connecting strength between the mounting pedestal portion 2g and the left wall 2c is remarkably improved via the left side plate member 15, and the connecting strength between the mounting pedestal portion 2h and the right wall 2d is right. It is greatly improved through the membrane plate member 16.

The reinforcing plate 17 reinforces the connection strength between the left side plate member 15 and the mounting pedestal portion 2g, and the reinforcing plate 18 connects the right side plate plate member 16 with the mounting pedestal portion 2h. Reinforced. Thereby, even when the load accompanying cutting process acts on the column 4, stability of the column 4, ie, cutting precision, can be improved. However, these reinforcement boards 17 and 18 can be abbreviate | omitted.

The pedestal base member 2 has the left side plate member 15 and the right side plate member 16 at lower height positions from the upper ends of the left and right side walls 2c and 2d, respectively. As a result, even when the coolant leaks from the rear end of the splash cover 13 and falls on the left side plate member 15, the left side wall 2c, the mounting pedestal portion 2g, and the lower left side plate member ( The left trough formed by 115 leads the leaked coolant toward the rear cooling tank 10. Even when the leaked coolant falls on the right side plate member 16, the right trough formed by the right side wall 2d, the mounting pedestal portion 2h, and the lower right side plate member 16 receives the leaked coolant. Guide towards the rear cooling tank 10. For this reason, the outflow of the cooling liquid which fell on these left and right membrane plate members 15 and 16 can be reliably prevented.

Next, the modified form of the said embodiment is demonstrated.

1) The left side plate member 15 and the right side plate member 16 described above may be slightly inclined to the rear. In this case, the coolant dropped on the left membrane plate member 15 or the right membrane plate member 16 can be quickly discharged to the cooling tank 10 at the rear, and the dischargeability of the coolant can be improved.

2) The left side plate member 15A and the right side plate member 16A are separate members from the pedestal base member 2 and may be detachably fixed to the pedestal base member 2, respectively. However, about the member similar to the said Example, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

That is, as shown in Fig. 7, the left side plate member 15A has the same gap shape as the gap between the left side mounting pedestal portion 2g and the left side wall 2c, and the left side plate member 15A The end of the left wall 2c extends to the upper end surface of the left wall 2c. The right side plate member 16A has the same gap shape as the gap between the right side mounting pedestal portion 2h and the right side wall 2d, and the end of the right side wall 2d of the right side plate member 16A is the right side wall. It reaches to the upper end surface of (2d).

The left membrane plate member 15A has two concave grooves 15a formed on the upper surface thereof in an orientation substantially parallel to the longitudinal direction (front and rear direction) of the pedestal base member 2. The right side plate member 16A has two concave grooves 16a formed on the upper surface thereof in an orientation substantially parallel to the longitudinal direction (front and rear direction) of the pedestal base member 2.

Thus, the plurality of bolts 20 fixes the left membrane plate member 15A in a state covering the gap between the left mounting pedestal portion 2g and the left wall 2c on the upper end surface of the left wall 2c. . The plurality of bolts 21 fixes the right side plate member 16A in a state covering the gap between the right side mounting pedestal portion 2h and the right side wall 2d on the upper end surface of the right side wall 2d.

In this way, the left membrane plate member 15A is detachably provided from the mounting pedestal portion 2g over the upper end surface of the left wall 2c. The right membrane plate member 16A is detachably provided from the mounting pedestal portion 2h over the upper end surface of the right wall 2d. These left and right membrane plate members 15A and 16A are each provided with concave grooves 15a and 16a substantially parallel to the longitudinal direction of the pedestal base member 2. Thereby, when an operator injects a cooling liquid from the washing nozzle with a hose and performs a washing | cleaning operation, the side part of the column 4 among the washing cooling passages 2i and 2j respectively formed in the left and right both sides of the base base member 2 is performed. Dispersion of the cooling liquid from the corresponding passage portion to the outside can be reliably prevented with these left and right membrane plate members 15A and 16A.

In the case where the left side plate member 15A and the right side plate member 16A interfere with each other, such as cleaning the bottom wall 2a, the operator may use the left side plate member 15A and the right side plate member (if necessary). 16A) may be removed from time to time. Further, even when the coolant leaked from the rear end of the splash cover 13 falls on the left side plate member 15A or the right side plate member 16A, the left side plate member 15A and the right side plate The outflow of the cooling liquid to the outside can be reliably prevented by the gutter function by the plurality of concave grooves 15a and 16A formed in the member 16A.

With the above configuration, every time the cutting processing is completed, the worker splashes the cooling liquid used for cleaning on the front surface side of the column when the operator sprays the cooling liquid from the cleaning nozzle to perform the cleaning operation. Can be reliably prevented, and when the operator injects the coolant to clean the rear side of the splash cover, even if the splatter coolant passes through the lower side of the splash cover, the cleaning passages respectively formed on the left and right sides of the pedestal base member. Splashing of the cooling liquid from the side of the column to the upper part can be reliably prevented by a pair of membrane plate members, so that the cooling liquid used for cleaning does not scatter from any part of the machine tool to the outside during the cleaning operation. It is possible to provide a machine tool capable of reliably preventing contamination of the bottom surface.

Claims (6)

A machine tool comprising a pedestal base member, a column fixed to the pedestal base member, a spindle head mounted on the column, and a splash cover fixed to the pedestal base member and covering the front side space of the column. In The pedestal base member includes an installation pedestal portion to which the column is fixed, a bottom wall, a left wall and a right wall, and a front side wall, And a pair of membrane plate members extending from the mounting pedestal portion of the pedestal base member to the left and right sidewalls at a height position near the upper end of the left and right sidewalls. The machine tool according to claim 1, wherein the left side plate member is integrally formed with the mounting pedestal portion and the left side wall, and the right side plate plate member is integrally formed with the mounting pedestal portion and the right side wall. The machine tool according to claim 2, wherein the left and right membrane plate members are arranged at a lower height position from an upper end of the left and right side walls. The left side membrane plate member is detachably installed at the upper end of the mounting pedestal portion and the left wall, and the right side membrane plate member is detachably installed at the upper end of the mounting base portion and the right side wall. One machine tool. The machine tool according to claim 4, wherein concave grooves in an orientation parallel to the longitudinal direction of the pedestal base member are formed in each of the left and right membrane plate members. The machine tool according to any one of claims 1 to 3, wherein concave grooves in an orientation parallel to the longitudinal direction of the pedestal base member are formed in each of the left and right membrane plate members.

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