JP4336466B2 - Processing tool cleaning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a processing tool cleaning apparatus that is attached to a processing apparatus or a polishing apparatus and that can clean and clean dirt on its surface during processing by a processing tool, thereby maintaining and improving processing quality. The present invention relates to a processing tool cleaning apparatus having a mechanism for cleaning a processing part of a processing tool with a cleaning unit containing a processing liquid to clean the surface of the processing tool and reliably recovering used processing liquid, chips, and the like.
[0002]
[Prior art]
Various means have been proposed in the past as means for cleaning the processing surface of a processing tool during processing to prevent sharpness deterioration and improve processing quality. Examples thereof include JP-A-5-57610, JP-A-7-249601, and JP-A-9-47962. Japanese Patent Laid-Open No. 5-57610 discloses a “grinding method” in which a grinding liquid is sprayed onto an abrasive grain portion of a grinding wheel while being oscillated by an ultrasonic oscillator to clean the abrasive grain portion. In addition, the “grinding device” disclosed in JP-A-7-249601 automatically cleans the grinding wheel surface by automatically positioning the cleaning nozzle at a position opposite to the grinding wheel surface of the grinding wheel. It is what makes you wait. Japanese Patent Application Laid-Open No. 9-47962 discloses a dressing apparatus and a dressing method for a metal bond grindstone, in which a dressing electrode is disposed in the vicinity of the outer periphery of a grindstone that is in contact with a workpiece and grinding. While the electrolytic solution is injected into the gap between the grindstone and the grindstone, a sliding contact member for wiping away the adhering matter of the grindstone is interposed in the gap to clean the grindstone.
[0003]
[Problems to be solved by the invention]
All of the above known techniques have the effect of removing deposits adhering to the grindstone, but the cleaning means are all located away from the grindstone and are cleaned only by cleaning with a liquid such as a cleaning liquid. Is. For this reason, the grinding stone is not necessarily completely cleaned. Moreover, all the cleaning liquids used are in a flowing state, and this recovery is not performed. If the cleaning liquid is not collected, there is a problem that the cleaning liquid flows down to the processing surface and the like, stains the processing surface and degrades the processing quality, and the processing and regeneration of the cleaning liquid become insufficient.
[0004]
The present invention has been invented in view of the above circumstances, and the processing site of the processing tool is reliably cleaned, and foreign matter such as chips and used processing fluid are also reliably recovered and recycled. It is an object of the present invention to provide a processing tool cleaning apparatus that can be manufactured in a compact manner and can be manufactured relatively inexpensively.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a processing tool cleaning apparatus according to claim 1 , wherein a brush for cleaning the surface of the grinding tool by being pressed against the supply of the processing liquid and the grinding tool, and the processing liquid on the brush is provided. A supply section for supplying the tray and a tray disposed below the brush, the grinding tool is rotated on an axis parallel to the surface of the workpiece, and the brush and the tray are rotated in the rotational direction of the grinding tool. On the other hand, the tray and the brush are arranged in this order . Since the brush containing the cleaning liquid directly hits the processing site of the grinding tool , the processing site is reliably cleaned. In addition, the used machining fluid is reliably collected by the tray , so that the machining fluid treatment and its recycling can be reliably performed. Moreover, since the brush is used, the stain on the processed part is surely removed by the brush. Moreover, since a brush is used, it can be used relatively inexpensively.
[0006]
Further, in the processing tool cleaning device according to claim 2, the grinding tool is attached to a tip end of a tool spindle, and the brush is attached to a tip end side of a support tool whose base end side is held on a side surface of the tool spindle. Features .
[0008]
The processing tool cleaning apparatus according to claim 3 is characterized in that the processing liquid is supplied dropwise to the brush. Since cleaning is performed with the brush wetted with the processing liquid after the processing liquid is supplied dropwise to the brush, more reliable cleaning can be performed.
[0009]
The processing tool cleaning apparatus according to a fourth aspect is characterized in that the processing liquid is supplied into the brush. Since the processing liquid is directly supplied to the portion of the brush, the brush is sufficiently wet with the processing liquid, and the processing surface is more reliably cleaned. Further, since the machining fluid is almost completely absorbed into the brush, there is no waste.
[0010]
Further, in the processing tool cleaning apparatus according to claim 5 , the receiving tray has a receiving portion such as chips and processing liquid disposed below the brush , and a distal end side of the receiving portion is disposed close to the grinding tool. It consists of a saucer-like member . Machining fluid and chips, etc. already use is almost entirely recovered by pan-like member, waste does not occur.
[0011]
According to a sixth aspect of the present invention, there is provided the processing tool cleaning apparatus, wherein the tray-like member is provided with a discharging means for discharging the processing liquid. By this discharging means, the processing liquid, chips and the like accumulated in the tray member are reliably discharged to the discharge location.
[0012]
According to a seventh aspect of the present invention, there is provided the processing tool cleaning apparatus, wherein the tray-like member forms at least two downward inclined surfaces, and the discharge means is connected to the downward end portion of the inclined surface. And By forming the inclined surface, the used machining fluid, chips and the like are collected, and are collected without waste and smoothly.
[0013]
In the processing tool cleaning apparatus according to claim 8 , the tip side of the tray is always arranged at a position spaced apart from the grinding tool by a gap adjusting means. Even if the grinding tool is worn, etc., the tray is held in a fixed position, so that stable recovery is performed.
[0014]
According to a ninth aspect of the present invention, there is provided the processing tool cleaning apparatus, wherein the pressure contact force between the brush and the grinding tool is variably formed. The brush can be brought into pressure contact with the grinding tool in an appropriate pressure state, and the cleaning effect of the processed surface can be ensured and stabilized.
[0015]
According to a tenth aspect of the present invention, there is provided a processing tool cleaning apparatus, wherein the variable means for changing the pressure contact force uses an elastic force of an elastic member such as a spring or rubber. By using the elastic member, an unreasonable pressure contact force is not transmitted to the grinding tool side. Thereby, stable cleaning is performed.
[0016]
In the processing tool cleaning apparatus according to claim 11 , the rotation direction of the grinding tool is a direction in which the cleaning position of the grinding tool moves from the lower side to the upper side of the brush that is in contact with the grinding tool. It is characterized by. By setting the engagement position between the brush and the grinding tool as described above, it is possible to stabilize the brush effect and improve its durability.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a processing tool cleaning apparatus according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing an overall structure of a processing tool cleaning apparatus according to the present invention and an engaged state between a grinding tool which is one of the processing tools and the processing tool cleaning apparatus. A grinding tool 6 that is one of the processing tools is attached to the tip of a tool spindle 7. The tool spindle 7 is mounted on a main shaft of a grinding device (not shown). The grinding tool 6 is rotationally driven by a rotational driving means (not shown). Further, the grinding tool 6 is pressed against the surface of the workpiece 8 to grind the workpiece 8.
[0018]
The processing tool cleaning apparatus 1 is roughly divided into a brush 2 that is one of cleaning means, a processing liquid supply unit 4 that supplies the processing liquid 5, and a recovery mechanism unit that recovers the processing liquid 5, chips, and the like. It consists of a certain saucer-like member 3 grade | etc.,. The brush 2 is attached to the distal end side of a support 9 whose base end side is held on the tool spindle 7 side, and the distal end portion is pressed against and engaged with the outer periphery of the grinding tool 6. Further, the saucer-like member 3 is also attached below the brush 2 on the tip side of the support 9, and the tip portion is positioned at a position close to the outer periphery of the grinding tool 6. As shown in the figure, a gap δ is formed between the tip of the receiving part 10 of the saucer-like member 3 and the outer periphery of the grinding tool 6.
[0019]
With the above structure, chips and the like generated by grinding the workpiece 8 adhere to the outer peripheral surface of the grinding tool 6, but the chips and the like are removed by the brush 2 that is in pressure contact with the grinding tool 6. Since the machining fluid 5 is supplied from the machining fluid supply unit 4 to the brush 2, the brush 2 is held in a wet state, and the grinding tool 6 can be cleaned reliably and smoothly. Chips and the like and the used machining fluid 5 removed from the outer periphery of the grinding tool 6 by the brush 2 fall on the receiving portion 10 of the saucer-like member 3 and are processed.
[0020]
FIG. 2 shows an embodiment of the machining fluid supply unit 4. The machining fluid supply unit 4a includes a flexible hose 11 and a machining fluid supply source (not shown). The flexible hose has an outlet 12 at the tip thereof disposed above the brush 2. Further, the machining fluid 5 from the machining fluid supply source is supplied to the flexible hose 11 and discharged from the tip portion thereof. This flexible hose 11 is supported by a support 9 as shown in the figure.
[0021]
The machining liquid 5 sent by the flexible hose 11 with the above structure falls from the outlet 12 at the tip of the flexible hose 11 and is supplied dropwise to the brush 2. As a result, the brush 2 is wetted by the working fluid 5. Thereby, the grinding tool 6 can be more reliably cleaned.
[0022]
FIG. 3 shows another embodiment of the machining fluid supply unit. The machining fluid supply unit 4b is configured to communicate the tip of the flexible hose 11b with the interior of the brush 2. Due to this structure, the processing liquid 5 is supplied not directly to the brush 2 but directly to the brush 2 unlike the one shown in FIG. For this reason, the brush 2 is sufficiently wet, and the processing liquid 5 is not contaminated, thereby preventing waste.
[0023]
4 and 5 show one embodiment of the saucer-like member 3. The saucer-like member 3c is made of a dish-like member that receives the used machining fluid 5, and as one embodiment thereof, is formed of two inclined surfaces 13, 13 (inclination angle θ). A hose 15, which is one of discharge means, is connected to the descending end portion 14 of the inclined surfaces 13 and 13. With the structure described above, the used machining fluid 5 and the chips 16 that have fallen on the tray-like member 3c gather at the descending end portion 14 from the inclined surface 13 and are discharged from the hose 15.
[0024]
As shown in FIG. 6, there is a gap δ between the tip of the receiving portion 10 of the tray-like member 3 that is one of the collection mechanisms and the outer periphery of the grinding tool 6, but this gap δ is always constant. It is necessary to be retained. The outer peripheral dimension of the grinding tool 6 is gradually reduced by grinding the workpiece 8. For this reason, if the receiving part 10 of the saucer-like member 3 is always fixed at a fixed position, the value of the gap δ gradually increases. When the gap δ increases, the recovery of the machining fluid 5, the chips 16 and the like becomes uncertain, and some drops from the gap. For this reason, the gap adjusting means 17 that always holds the gap δ at a constant dimension is required.
[0025]
FIG. 7 shows an embodiment of the gap adjusting means 17. A substrate 18 is fixed to the outer periphery of the tool spindle 7, and the support 9 is screwed to the substrate 18 by bolts 19 on the substrate side. An adjustment screw 20 is interposed between the support tool 9 and the substrate 18, and the distance between the substrate 18 and the support tool 9 can be changed by appropriately operating the adjustment screw 20. Since the saucer-like member 3 is fixed to the support 9, the saucer-like member 3 can be moved by adjusting the adjustment screw 20, and as a result, the gap δ between the saucer-like member 3 and the grinding tool 6 is increased. It can be adjusted to a certain value.
[0026]
FIG. 8 shows one embodiment of the pressing force adjusting means 21 for adjusting the pressing force of the brush 2 to the grinding tool 6. In this device, a spring 22 which is one of elastic members is interposed between the substrate 18 and the support 9, and the reaction force of the spring 22 is adjusted by tightening the bolt 23, whereby the brush 2 and the grinding tool 6 are adjusted. Is always kept constant. Of course, the elastic member may not be the spring 22, and the means for keeping the pressure constant is not limited to the structure described above.
[0027]
FIG. 9 shows the relationship between the rotation direction of the grinding tool 6 and the overall arrangement of the processing tool cleaning apparatus 1. In the case of the arrangement of the processing tool cleaning apparatus 1 as shown in FIG. 9, it is desirable that the grinding tool 6 rotates in the direction of arrow A, that is, in the clockwise direction. Thereby, the grinding tool 6 hits the brush 2 from the lower side of the brush 2 and is driven to rotate. Chips adhere to the outer periphery of the grinding tool 6 due to grinding of the workpiece 8, but the chips are partially removed from the outer periphery of the grinding tool 6 when the grinding tool 6 hits the lower part of the brush 2 and remain. The chips are removed before the grinding tool 6 advances to the upper side of the brush 2. That is, by maintaining the engagement relationship between the grinding tool 6 and the brush 2 in this manner, removal of chips and the like is more reliably performed.
[0028]
While various embodiments have been described above, the present invention is not limited to the above embodiments, and other embodiments can of course be applied within the scope of the present invention. Moreover, although the case where the grinding tool 6 was used as a processing tool was demonstrated, it is not limited to this.
[0029]
【The invention's effect】
1) According to the processing tool cleaning apparatus of claim 1 of the present invention, cleaning is performed by bringing a brush containing a processing liquid into contact with a grinding tool , so foreign matters such as chips adhering to the grinding tool are eliminated, Since the grinding tool can always be kept clean, the machining accuracy of the workpiece can be improved. In addition, the removed foreign matter can be smoothly processed by the tray and can be recycled.
2) Moreover, since it is applied to grinding, highly accurate and highly efficient grinding can be performed.
3) In addition, a brush is used, which can be implemented at low cost and can be reliably cleaned.
4) According to the processing tool cleaning apparatus of the third aspect of the present invention, the processing liquid is dropped and supplied to the brush, and the brush can always be kept in an appropriate wet state.
5) According to the processing tool cleaning apparatus of claim 4 of the present invention, since the processing liquid is directly supplied to the inside of the brush, the processing liquid is prevented from being wasted. Further, the brush can be wetted uniformly in a constant state.
6) According to the processing tool cleaning apparatus of the fifth aspect of the present invention, since the receiving tray-like member is arranged close to the workpiece as a receiving tray, the used processing liquid, chips, etc. are reliably collected.
7) According to the processing tool cleaning apparatus of the sixth aspect of the present invention, the used processing liquid and chips are discharged more smoothly and reliably by providing the discharging means.
8) According to the processing tool cleaning device of the seventh aspect of the present invention, since the inclined surface is formed in at least two places of the tray-like member and the structures are integrated at the descending end portion, the used processing liquid And chips are discharged more smoothly and reliably.
According to the processing tool cleaning device according to claim 8 of 9) the present invention, since the no saucer and the grinding tool relevant to wear of the grinding tool is maintained at a constant interval, it stable recovered at all times.
10) According to the processing tool cleaning apparatus of the ninth aspect of the present invention, since the pressure contact force between the brush and the grinding tool can be always kept constant, stable cleaning can be performed.
11) According to the processing tool cleaning device of the tenth aspect of the present invention, since the pressing force is adjusted by the elastic member, the pressing force can be adjusted without difficulty.
According to the processing tool cleaning device according to claim 11 of 12) the present invention, in the arrangement of the processing tool cleaning device and the grinding tool, the collection direction of the grinding tool, specific to such grinding tool strikes from the lower side of the brush Thus, more reliable cleaning can be performed.
[Brief description of the drawings]
FIG. 1 is a front view showing an overall structure of a processing tool cleaning device according to the present invention and an engaged state between the processing tool and the processing tool.
FIG. 2 is a partial front sectional view showing a dropping type processing liquid supply means.
FIG. 3 is a partial front sectional view showing an internal supply type machining fluid supply means.
FIG. 4 is a partial front cross-sectional view showing one embodiment of a recovery mechanism unit.
FIG. 5 is a schematic cross-sectional view showing a schematic structure of a recovery mechanism unit having two inclined surfaces.
FIG. 6 is a partial front cross-sectional view for explaining that the gap between the processing tool and the recovery mechanism is kept constant.
FIG. 7 is a partial cross-sectional view showing an embodiment of a gap adjusting means for keeping a gap between a processing tool and a recovery mechanism unit constant.
FIG. 8 is a partial cross-sectional view showing one embodiment using an elastic member in order to keep the applied pressure of the cleaning means constant.
FIG. 9 is a partial front cross-sectional view for explaining the relationship between the engagement state between the processing tool cleaning device and the processing tool and the rotation direction of the processing tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tool washing | cleaning apparatus 2 Brush 3 Dish-shaped member 4 Processing liquid supply part 4b Processing liquid supply part 5 Processing liquid 6 Grinding tool 7 Tool spindle 8 Work piece 9 Support tool 10 Receiving part 11 Flexible hose 11b Flexible hose 12 Outlet 13 Inclined surface 14 Downward end 15 Hose 16 Chip 17 Clearance adjusting means 18 Substrate 19 Bolt 20 Adjusting screw 21 Pressure contact adjusting means 22 Spring 23 Bolt

Claims (11)

A brush for cleaning the surface of the grinding tool by supplying a working fluid and pressing the grinding tool;
A supply unit for supplying a machining fluid to the brush;
A saucer disposed below the brush,
Rotating the grinding tool around an axis parallel to the surface of the workpiece;
The said tool and the said saucer are arrange | positioned in order of the said saucer and the said brush with respect to the rotation direction of the said grinding tool, The processing tool washing | cleaning apparatus characterized by the above-mentioned . 2. The processing tool cleaning according to claim 1, wherein the grinding tool is attached to a tip end of a tool spindle, and the brush is attached to a tip end side of a support tool whose base end side is held on a side surface of the tool spindle. apparatus. The working fluid, the working tool cleaning apparatus according to claim 1 or 2, characterized in that it is dropped supplied to the brush. The working fluid, the working tool cleaning apparatus according to claim 1 or 2, characterized in that it is supplied to the inside of the brush. The said tray is composed of a tray-like member in which a receiving portion such as chips and machining liquid is disposed below the brush and the tip side of the receiving portion is disposed close to the grinding tool. The processing tool washing | cleaning apparatus in any one of 1-4 . 6. The processing tool cleaning apparatus according to claim 5 , wherein a discharge means for discharging a processing liquid is attached to the tray-like member. 7. The processing tool cleaning apparatus according to claim 6 , wherein the tray-shaped member is formed of at least two descending inclined surfaces, and the discharge means is connected to the descending end of the inclined surface. . The processing tool cleaning apparatus according to any one of claims 1 to 7 , wherein the tray is always disposed at a position where a tip end side thereof is spaced apart from the grinding tool by a gap adjusting means. Processing tool cleaning apparatus according to any one of claims 1 to 8, characterized in that the contact pressure between the brush and the grinding tool is variably formed. 10. The processing tool cleaning apparatus according to claim 9 , wherein the variable means for changing the pressure contact force uses an elastic force of an elastic member such as a spring or rubber. Rotational direction of the grinding tool can be of any claim 1, wherein the cleaning position of the grinding tool from below of the brush in contact with the grinding tool upward is a direction to move to 10 processing tool cleaning device according to any.

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