JP4815896B2 - Machine Tools - Google Patents

Description

  The present invention relates to a machine tool, and in particular, after cutting a workpiece, when an operator performs a cleaning operation of spraying a coolant liquid from a nozzle gun or the like to clean chips and cutting chips, the outside of the coolant liquid used for cleaning It relates to the thing which prevented scattering to.

  Conventionally, a machine tool capable of numerical control (so-called NC control) is provided with a column on a pedestal base body, a spindle head mounted on the column, a work table for moving a mounted work, and the like. Based on the program, various cutting processes such as cutting, polishing and drilling can be performed on the workpiece by a tool mounted on the spindle head.

  For example, the machine tool (vertical machining center) of Patent Document 1 is provided with a column on the base that supports the spindle head so that the spindle head can move up and down, and a saddle and a work table that can be moved in the X and Y directions. While moving the table, various cutting processes are performed on the workpiece positioned and placed on the workpiece table.

  By the way, in general, this type of machine tool is provided with a plurality of cleaning nozzles directed toward a work table or a tool. During machining of a workpiece, a coolant generated by these cleaning nozzles causes cuttings generated during cutting. Cutting waste such as powder is cleaned. Therefore, the space on the front side of the column is covered with a splash cover (enclosure) so that the cutting waste generated during the cutting process and the coolant liquid during the cleaning are not scattered outside during such cleaning.

  Furthermore, after cutting the workpiece, a large amount of cutting waste generated during the cutting process is accumulated on the inclined bottom wall of the base, so the operator opens the open / close door provided on the front surface of the splash cover, Coolant liquid is sprayed from the cleaning nozzle with a hose, and the cutting waste accumulated on the bottom wall is pushed through the cleaning passages formed on the bottom walls on both the left and right sides of the column to the coolant tank provided on the rear side of the base. In other words, a so-called cleaning operation is performed.

However, when the operator opens the door on the front of the splash cover and performs the cleaning work in this way, the coolant splashed by the cleaning is blocked by the splash cover and is not scattered outside. Yes.
Japanese Patent Laying-Open No. 2005-22042 (pages 4-5, FIG. 2)

  In the machine tool and the like described in Patent Document 1, as described above, each time the operator finishes the cutting process, the operator opens the splash cover door and injects the coolant liquid from the cleaning nozzle to perform the cleaning operation. Since the space on the front side of the column is covered with the splash cover when performing the operation, the coolant liquid used for cleaning is prevented from splashing to the outside on the front side of the column.

  However, the lower end portion of the rear wall of the splash cover is located above the bottom wall so as not to block the cleaning passage. Further, of the cleaning passages formed on the left and right sides of the base, the upper side of the passage portion corresponding to the side portion of the column is open and does not cover anything. For this reason, when cleaning the rear side of the splash cover by spraying strong water coolant from the opening and closing door side, the splash of coolant liquid passes under the splash cover and There is a problem that the floor surface is scattered from the side portion and the floor surface is contaminated with the coolant liquid.

The machine tool according to claim 1 includes a pedestal base body, a column fixed to the pedestal base body, a spindle head mounted on the column, and a space fixed on the pedestal base body and covering a space on the front side of the column. In a machine tool having a splash cover, the pedestal base body is located between the mounting pedestal to which the column is fixed, the bottom wall, the left and right side walls, the front side wall, the mounting pedestal and the left and right side walls. A pair of coolant passages, and a pair of blocking plate members in a substantially horizontal position extending from the mounting base portion of the base base body to the left and right side walls are provided at height positions near the upper ends of the left and right side walls . The closing plate member is formed so as to cover the upper side of the pair of coolant passages on the rear side of the rear wall of the splash cover .

  The column equipped with the spindle head is fixed to the pedestal base body via the mounting pedestal, and the splash cover that covers the space on the front side of the column is fixed to the pedestal base body at the lower end. When the operator performs the cleaning operation by injecting the coolant liquid from the cleaning nozzle each time the cutting process is completed, the coolant liquid used for cleaning is not scattered outside on the front side of the column. Prevented by a splash cover.

Further, a pair of blocking plate members having a substantially horizontal posture is provided at a height position near the upper ends of the left and right side walls from the mounting base portion of the pedestal base body to the left and right side walls, and the pair of blocking plate members. Is formed so as to cover the upper side of the pair of coolant passages on the rear side of the rear wall of the splash cover, so that when the operator cleans the rear side of the splash cover, splashing of the coolant is caused by the splash cover. Even when it passes through the lower side of the pedestal base body, in the cleaning passages formed respectively on the left and right sides of the pedestal base body, the splashing of the coolant liquid from the side of the column upward is prevented by the closing plate member. Therefore, the splash of the coolant used for cleaning does not scatter to the outside from any part of the machine tool, and the floor surface is not soiled.

  The machine tool according to claim 2 is the invention according to claim 1, wherein the left closing plate member is integrally formed with the mounting base and the left side wall, and the right closing plate member is integrated with the mounting base and the right side wall. It is configured.

  According to a third aspect of the present invention, in the machine tool according to the second aspect, the left and right closing plate members are disposed at a height one step lower than the upper ends of the left and right side walls.

  According to a fourth aspect of the present invention, there is provided the machine tool according to the first aspect of the invention, wherein the left closing plate member is detachably provided at the upper end of the mounting base and the left side wall, and the right closing plate member is the mounting base and the right side wall. The upper and lower ends are detachably provided, and each of the left and right closing plate members is formed with a concave groove in a direction parallel to the length direction of the pedestal base body.

According to the first aspect of the present invention, in the machine tool including the pedestal base body, the column, the spindle head, and the splash cover, the pedestal base body includes the mounting base portion to which the column is fixed, the bottom wall, the left side wall, A pair of blocking plate members having a right side wall, a front side wall, a pair of coolant passages between the mounting base and the left and right side walls, and having a substantially horizontal posture extending from the mounting base of the base base body to the left and right side walls Is provided at a height position near the upper ends of the left and right side walls, and the pair of closing plate members are formed so as to cover the upper side of the pair of coolant passages on the rear side of the rear wall of the splash cover , respectively. Every time the cutting process is completed, when the operator sprays the coolant liquid from the cleaning nozzle and performs the cleaning work, the coolant used for cleaning is scattered outside the column on the front side. It can be reliably prevented by plush cover.

Further, when the operator to clean the rear side of the splash cover by injecting a coolant, even if the splashes of coolant passes through the bottom of the splash cover, which is respectively formed on left and right sides of the pedestal base body coolant Spattering of the coolant liquid from the side of the column in the passage can be reliably prevented by the pair of closing plate members in a substantially horizontal posture. For this reason, during the cleaning operation, it is possible to take measures to prevent the coolant used for cleaning from scattering from any part of the machine tool to the outside, and the floor surface can be reliably prevented from being contaminated.

  According to the invention of claim 2, since the left closing plate member is integrally formed with the mounting base and the left side wall, and the right closing plate member is integrally formed with the mounting base and the right side wall, the mounting base is provided. The connection strength between the portion and the left side wall is remarkably improved, and the connection strength between the mounting base and the right side wall is remarkably improved. Therefore, even when a load associated with cutting is applied to the column, the stability of the column, that is, the cutting accuracy can be increased. Other effects similar to those of the first aspect are obtained.

  According to the invention of claim 3, since the left and right closing plate members are arranged at a height position one step lower than the upper ends of the left and right side walls, the coolant liquid leaks from the rear end of the splash cover, and Even when it falls on the closing plate member, the leaked coolant liquid is one step lower than the left side wall, the mounting base and the left side closing plate formed by the lower left closing plate member, and one step lower than the right side wall and the mounting base. Since the right side hooks formed with the right closing plate member are respectively guided toward the coolant tank, it is possible to reliably prevent the coolant liquid falling on the left and right closing plate members from flowing out to the outside. . Other effects similar to those of the second aspect are achieved.

  According to the invention of claim 4, the left closing plate member is detachably provided on the mounting base and the upper end of the left side wall, and the right closing plate member is removable on the mounting base and the upper end of the right side wall. Since each of the left and right closing plate members is provided with a concave groove in a direction parallel to the length direction of the pedestal base body, the pedestal base body is used when the operator performs a cleaning operation using the coolant liquid. It is possible to reliably prevent the coolant liquid from splashing from the passage portion corresponding to the side portion of the column among the cleaning passages formed on the left and right sides of each of the cleaning passages with the plate member.

  Moreover, when the closing plate members on both the left and right sides are in the way, such as when cleaning the bottom wall, the closing plate members can be removed as needed. Furthermore, even if the coolant leaking from the rear end of the splash cover falls onto the left and right closing plate members, the coolant function ensures that the coolant liquid flows out to the outside by the groove function formed in the closing plate members. Can be prevented. Other effects similar to those of the first aspect are obtained.

  The machine tool according to the present embodiment includes a pair of closing plate members in a substantially horizontal posture extending from a mounting base portion provided on a base base body to the left and right side walls for mounting a column, and a height position near the upper ends of the left and right side walls. When the operator performs the cleaning operation by spraying the coolant from the cleaning nozzle, the upper side of the cleaning coolant passage is blocked so that the cleaning coolant does not splash outside.

A machine tool 1 that is a vertical machining center will be described.
As shown in FIGS. 1 to 3, a pedestal base body 2 having a substantially rectangular shape in plan view is installed on a floor surface, and a pair of left and right rail pedestals 2e and 2f each having a guide rail are provided on a bottom wall 2a thereof. A Y-direction drive mechanism (not shown), which is formed in the front-rear direction and moves a work table 3 for positioning and placing a work (not shown) on these guide rails in the Y direction (front-rear direction), and a work table 3 An X-direction drive mechanism (not shown) that moves in the X direction (left-right direction) is provided.

  A pair of left and right mounting bases 2g and 2h, which are integrally provided on the bottom wall 2a, are provided on the rear part of the base 2 in the front-rear direction, and columns are provided on the mounting bases 2g and 2h. 4 is erected and fixed. A spindle head 5 is supported on the column 4 so as to be vertically movable.

  The machine tool 1 is provided with a tool changer 6 that selectively switches a plurality of tools mounted on the spindle head 5 as necessary. On the rear side of the column 4, a control box 7 having a control device for controlling the machine tool 1 is provided.

  As shown in FIG. 3, the pedestal base body 2 includes a substantially rectangular bottom wall 2 a provided over the whole, a vertically oriented front side wall 2 b integrally formed on the front side of the bottom wall 2 a, A vertically oriented left side wall 2c integrally formed on the left side of the bottom wall 2a and a vertically oriented right side wall 2d integrally formed on the right side of the bottom wall 2a are provided. However, as shown in FIG. 5, the bottom wall 2a is disposed in a backward downward gradient.

  As shown in FIGS. 1 and 2, a coolant tank 10 is provided on the rear side of the pedestal base body 2 to store a coolant liquid for use in cooling and cleaning. The coolant stored in the coolant tank 10 is circulated and supplied to a cleaning nozzle (not shown) by a circulation pump 12 driven by a pump motor 11.

  That is, although not shown, a number of nozzles such as an injection nozzle directed to the cutting tool mounted on the spindle head 5 and an injection nozzle directed to the work table 3 are provided. In addition to cooling the tool and the workpiece, the coolant liquid is sprayed from the coolant, and the cutting waste generated during the cutting process is washed out to the coolant tank 10 through the left and right cleaning coolant passages 2i and 2j.

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

  However, as shown in FIGS. 1 and 2, the rear wall of the splash cover 13 extends to the front surface of the column 4, and the lower end of the splash cover 13 does not block the cleaning coolant passages 2i and 2j described later. It is located on the upper side.

  Here, as shown in FIG. 3 to FIG. 5, the cleaned coolant liquid is supplied to the coolant tank 10 between the left rail pedestal portion 2 e erected on the bottom wall 2 a and between the mounting pedestal portion 2 g and the left side wall 2 c. A left-side cleaning coolant passage 2i for flowing is formed. Further, a right cleaning coolant passage 2j for flowing the cleaned coolant liquid to the coolant tank 10 is formed between the right rail pedestal portion 2f and the mounting pedestal portion 2h erected on the bottom wall 2a and the right side wall 2d. ing.

  By the way, as shown in FIGS. 3 and 6, a left blocking plate member 15 having a substantially horizontal posture is provided at a height position one step lower than the upper end of the left side wall 2 c from the left mounting base 2 g to the left side wall 2 c. The left closing plate member 15 is formed integrally with the mounting base 2g and the left side wall 2c, respectively. On the other hand, a right closing plate member 16 having a substantially horizontal posture is provided from the right mounting pedestal portion 2h to the right side wall 2d at a height position one step lower than the upper end of the right side wall 2d, and the right closing plate member 16 is attached to the mounting pedestal portion. 2h and the right side wall 2d are integrally formed.

That is, as shown in FIG. 5, the left and right closing plate members 15, 16 are located on the rear side of the rear surface wall of the splash cover 13 and are connected to the bottom walls 2 a on the left and right sides of the column 4. The mounting bases 2g and 2h and the left and right side walls 2c and 2d are integrally formed. Further, as shown in FIGS. 3 to 6, the horizontal left closing plate member 15 and the left side wall 2 c are reinforced by a plurality of reinforcing plates (ribs) 17 having a triangular shape in front view, and the horizontal right closing plate member 16. And the right side wall 2d are reinforced by a plurality of reinforcing plates (ribs) 18 having a triangular shape in front view.

Next, the operation and effect of the machine tool 1 configured as described above will be described.
When the cutting process is completed, the operator opens the open / close door provided on the front side of the splash cover 13 and sprays the coolant liquid backward from a cleaning nozzle with a hose (not shown), so that the work table 3 The cutting waste remaining on the top surface and the bottom wall 2a flows out to the left cleaning coolant passage 2i and the right cleaning coolant passage 2j, and is moved to the rear coolant tank 10 through the left and right cleaning coolant passages 2i and 2j. In this way, the cleaning operation is performed.

  In this way, each time a series of cutting processes is completed, when the operator performs the cleaning operation by injecting the coolant liquid from the cleaning nozzle with a hose, the space on the front side of the column 4 is covered with the splash cover 13. Therefore, the splash cover 13 can reliably prevent splashing of the coolant used for cleaning by the cleaning nozzle with a hose.

  Further, the pair of blocking plate members 15 and 16 in a substantially horizontal posture extends from the mounting base portions 2g and 2h of the base base body 2 to the left and right side walls 2c and 2d. Therefore, when the operator sprays the coolant and cleans the rear side of the splash cover 13, even if the splash of the coolant passes under the splash cover 13, the pedestal base body 2 of the coolant passages 2i and 2j formed on the left and right sides of the column 2 can be reliably prevented by the plate members 15 and 16 from being scattered from the side of the column 4 to the outside.

  For this reason, during the cleaning operation, it is possible to take measures to prevent the coolant used for cleaning from scattering from any part of the machine tool 1 to the outside, and the floor surface can be reliably prevented from being contaminated.

  Further, the left closing plate member 15 is integrally formed with the mounting base portion 2g and the left side wall 2c, and the right closing plate member 16 is integrally formed with the mounting base portion 2h and the right side wall 2d. The connection strength between the pedestal 2g and the left side wall 2c is remarkably improved through the left closing plate member 15, and the connection strength between the mounting base 2h and the right side wall 2d is remarkably improved through the right closing plate member 16. To do.

  Moreover, the reinforcing plate 17 reinforces the connection strength between the left closing plate member 15 and the mounting base portion 2g, and the reinforcing plate 18 reinforces the connection strength between the right closing plate member 16 and the mounting base portion 2h. Even when the accompanying load acts on the column 4, the stability of the column 4, that is, the cutting accuracy can be increased. However, these reinforcing plates 17 and 18 can be omitted.

  Further, since the left closing plate member 15 and the right closing plate member 16 are respectively arranged at a position one step lower than the upper ends of the left and right side walls 2c, 2d, the coolant liquid leaks from the rear end of the splash cover 13. Even when the liquid drops on the left and right closing plate members 15 and 16, the leaked coolant liquid is caused by the left side wall formed by the left side wall 2c, the mounting base 2g, and the left closing plate member 15 which is one step lower, and Since the right side wall formed by the right side wall 2d, the mounting base 2h, and the lower right closing plate member 16 is guided toward the coolant tank 10 on the rear side, It is possible to reliably prevent the coolant liquid falling on the outside from flowing out.

  Next, a modified form of the embodiment will be described.

1] The left closing plate member 15 and the right closing plate member 16 described above may be inclined slightly rearward. In this case, the coolant liquid that has fallen on the left and right closing plate members 15 and 16 can be quickly discharged to the coolant tank 10 on the rear side, and the discharge performance of the coolant liquid can be improved.

2] The left and right closing plate members 15A, 16A are separate from the pedestal base body 2 and may be detachably fixed to the pedestal base body 2. However, the same members as those in the above embodiment are denoted by the same reference numerals and the description thereof is omitted.

  That is, as shown in FIG. 7, the left closing plate member 15A is formed in a gap shape similar to the gap between the left mounting base portion 2g and the left side wall 2c, and is made larger by the thickness of the left side wall 2c. The right closing plate member 16A is formed in a gap shape similar to the gap between the right mounting base 2h and the right side wall 2d by the thickness of the right side wall 2d.

  Furthermore, two concave grooves 15a are formed on the surface of the left closing plate member 15A substantially parallel to the surface portion in a direction parallel to the length direction (front-rear direction) of the pedestal base body 2. Further, the right closing plate member 16A has two concave grooves 16a formed substantially parallel to the surface portion thereof in a direction parallel to the length direction (front-rear direction) of the pedestal base body 2.

  Therefore, the left closing plate member 15A is fixed to the upper surface of the left side wall 2c with a plurality of bolts 20 in a state of covering the gap between the left mounting base 2g and the left side wall 2c. Further, the right closing plate member 16A is fixed to the upper surface of the right side wall 2d with a plurality of bolts 21 in a state of covering the gap between the right mounting base 2h and the right side wall 2d.

  In this manner, the left closing plate member 15A is detachably provided from the mounting base 2g to the upper end of the left side wall 2c, and the right closing plate member 16A is provided from the mounting base 2h to the upper end of the right side wall 2d. Since each of these left and right closing plate members 15A and 16A is provided with concave grooves 15a and 16a oriented in parallel to the length direction of the base base body 2, the operator can attach a hose. When performing the cleaning operation by injecting the coolant liquid from the cleaning nozzle, the coolant from the passage portion corresponding to the side portion of the column 4 of the cleaning coolant passages 2i and 2j formed on the left and right sides of the pedestal base body 2 respectively. The scattering of the liquid to the outside can be reliably prevented by these left and right closing plate members 15A and 16A.

  In addition, when the left and right closing plate members 15A and 16A are in the way, such as when cleaning the bottom wall 2a, the left and right closing plate members 15A and 16A can be removed as needed. Further, even when the coolant liquid leaking from the rear end of the splash cover 13 falls on the left and right closing plate members 15A and 16A, the plurality of concave grooves 15a and 16a formed in the left and right closing plate members 15A and 16A. The dredging function can reliably prevent the coolant liquid from flowing out.

3) The present invention is not limited to the above-described embodiments, and those skilled in the art can implement various modifications to the above embodiments without departing from the spirit of the present invention. The present invention includes those modifications.

It is a perspective view of the machine mechanism which concerns on the Example of this invention. It is a right view of a machine tool. It is a perspective view from the back of a base base body. It is a top view of a base base body. It is the EE line vertical side view of FIG. It is the FF line vertical side view of FIG. FIG. 4 is a diagram corresponding to FIG. 3 according to a modified embodiment.

DESCRIPTION OF SYMBOLS 1 Machine tool 2 Base base body 2a Bottom wall 2b Front side wall 2c Left side wall 2d Right side wall 2g Mounting base part 2h Mounting base part 4 Column 5 Spindle head 13 Splash cover 15 Left closing plate member 15A Left closing plate member 15a Concave groove 16 Right Closing plate member 16A Right closing plate member 16a Concave groove

Claims (4)

A machine tool comprising a pedestal base body, a column fixed to the pedestal base body, a spindle head mounted on the column, and a splash cover fixed to the pedestal base body and covering a space on the front side of the column In
The pedestal base body includes a pair of coolant passages between a mounting pedestal portion to which the column is fixed, a bottom wall, left and right side walls, a front side wall, and the mounting pedestal portion and the left and right side walls. And
A pair of blocking plates having a substantially horizontal posture extending from the mounting pedestal portion of the pedestal base body to the left and right side walls are provided at a height position near the upper ends of the left and right side walls, and the pair of blocking plate members are provided with the splash. Formed to cover the upper side of the pair of coolant passages on the rear side of the rear wall of the cover ,
A machine tool characterized by that.   2. The left closing plate member is configured integrally with a mounting base and a left side wall, and the right closing plate member is configured integrally with a mounting base and a right side wall. Machine Tools.   The machine tool according to claim 2, wherein the left and right closing plate members are arranged at a height position one step lower than the upper ends of the left and right side walls.   The left closing plate member is detachably provided on the mounting base and the upper end of the left side wall, and the right closing plate member is detachably provided on the mounting base and the upper end of the right side wall. The machine tool according to claim 1, wherein a concave groove is formed in each plate member in a direction parallel to a length direction of the pedestal base body.

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