JP3054115U - Cleaning tools for lathes - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a cleaning tool capable of effectively removing chips remaining on various parts of a machine or a work after completion of machining by a lathe. SOLUTION: A shank portion S attachable to a machine frame of a lathe M.
The first part, turning M or the workpiece W at least one of the cleaning section jet nozzles N ₁ to N ₃ capable of ejecting the cutting fluid toward the
Are detachably mounted, and the injection nozzles N _{1 to} N ₃ are
It is connected to an external cutting fluid supply source 12 via a cutting fluid passage 10 formed in the shank S.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lathe such as an NC lathe, which is used for each part of a lathe after processing (for example, a cover, around a chuck, etc.) and for each part of a work (for example, the inner and outer peripheral surfaces of a work, grooves formed on those peripheral surfaces, etc.). The present invention relates to a cleaning tool used for removing remaining chips.

[0002]

[Prior art]

 In the above-mentioned conventional lathe, after processing is completed, high-pressure gas is ejected at high speed from a high-pressure gas injection means such as air blow toward the work fixed to the chuck and around the chuck, so that it is generated during processing and remains on the work and the like. The swarf was blown off vigorously for cleaning, and after the cleaning, the next work was set on the chuck.

[0003]

[Problems to be solved by the invention]

 However, when the cleaning is performed by the high-pressure gas injection means such as the air blow after the work is completed as described above, there are the following problems. After the machining is completed, the cleaning work by air blow or the like needs to be performed specially before setting the next work. Therefore, it takes a relatively long time to resume the machining and the work efficiency is poor. The chips blown off adhere to and accumulate on the walls and covers that define the machining area of the lathe during the cleaning by air blow, etc., so that the machining area cannot be kept clean. If rust is generated in the powder, the working area will be soiled. The cutting fluid used during processing also blows off along with the chips along with the cleaning by air blow, etc. Cleaning fluid is dirty or sticky, and the cleaning work is troublesome, and the mist of the cutting fluid diffuses and the worker sucks a large amount.

The present invention has been made in view of such circumstances, and has as its object to provide a cleaning tool for a lathe that can solve the above-described conventional problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the invention of claim 1 is directed to injecting a cutting fluid toward a portion to be cleaned of at least one of the lathe and the work at a tip of a shank portion that can be attached to a machine frame of the lathe. The injection nozzle obtained is detachably mounted, and the injection nozzle is connected to an external cutting fluid supply source via a cutting fluid passage formed in the shank portion. In addition to the features of the invention of claim 1, in addition to the features of the invention, there are provided a plurality of the spray nozzles, which are arranged so as to be able to respectively spray the cutting fluid toward the lathe and a plurality of different portions to be cleaned of the work. The plurality of injection nozzles are connected in parallel to the cutting fluid passage in the shank portion. The invention of claim 3 further includes at least one injection nozzle in addition to the features of the invention of claim 2. At the tip of the shank The outer surface is a nozzle body which is screwed into the screw hole provided so as to open, the screw holes, characterized in that the plug body may screwed thereto is closable.

[0006]

[Embodiment of the invention]

 Embodiments of the present invention will be specifically described below based on embodiments of the present invention illustrated in the accompanying drawings.

In the accompanying drawings, FIG. 1 is a front view showing a relationship between a cleaning tool and a lathe / work according to a first embodiment of the present invention, FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1, and FIG. FIG. 4 is a vertical sectional view of the cleaning tool according to the first embodiment, and FIG. 5 is a vertical sectional view of the cleaning tool according to the second embodiment of the present invention. FIG. 6 is a sectional view taken along line 6-6 in FIG. 5, and FIG. 7 is a longitudinal sectional view of a main part of the cleaning tool according to the second embodiment.

First, a first embodiment shown in FIGS. 1 to 4 will be described. The NC lathe M as a lathe is provided with a chuck C for detachably holding the work W as conventionally known, and this chuck C is linked to a rotation driving means (not shown) to rotate around a predetermined axis L. It is driven to rotate with the work W.

A tool post (not shown) provided with a feed mechanism is attached to the machine frame of the lathe M. The tool post includes a plurality of types of cutting tools for cutting the workpiece W. A tool (not shown) and a cleaning tool T are radially arranged and detachably fixed. Accordingly, one of the cutting tools or the cleaning tool T can be selectively made to face the workpiece W by rotating and displacing the tool rest. Then, the work W is driven to rotate, and in a state where one of the cutting tools faces the work W, a feed motion is provided to the tool post toward the work W to press the cutting tool against the outer periphery of the work W. In addition, the outer periphery of the work W can be cut.

The cleaning tool T is for cleaning and removing chips remaining on each part of the lathe M and the work W after cutting, and is detachably mounted on a dedicated mounting holder H. The mounting holder H is fixed to a predetermined position of the tool rest by a suitable fixing means (not shown).

The cleaning tool T includes a shank portion S to which a rod-shaped base can be mounted on the mounting holder H, and a plurality of spray nozzles N _{1 to} N ₃ provided at a tip end of the shank portion S. I have. In the illustrated example, the mounting holder H can removably hold a shank S between the side walls 1a and 1b of the holder main body 1 having a U-shaped cross section fixed to the tool rest in the illustrated example. It comprises a clamping means 2.

The clamping means 2 includes a support plate 3 that overlaps and abuts on the inner surface of one side wall 1 b of the holder body 1 and a plurality of engagement bolts 4 screwed into the plate 3 at intervals. Prepare. Each of the engaging bolts 4 is screwed so as to protrude toward the shank portion S, and the head of the bolt is pressed against the shank portion S. And can be clamped and held integrally between them.

At the tip of the shank S, a first injection nozzle N ₁ capable of injecting a cutting fluid toward an outer peripheral groove Go, which is a portion to be processed on the outer periphery of the workpiece W, and a portion toward a periphery of the chuck C of the lathe M. only in a second injection nozzle N ₂ capable of jetting the cutting fluid, a third injection nozzle N ₃ capable of ejecting the cutting fluid is disposed at a distance from each other toward the cover 5 of the lathe M.

In the illustrated example, the second and third injection nozzles N ₂ and N ₃ are constituted by a commercially available nozzle body which is detachably attached to the tip of the shank portion S. Tapered holes 6 ₂ which opens in the outer surface thereof is formed on the tip portion of the Yanku portion S, it is engaged 6 ₃ Niso respectively directly screwed. In this way, by appropriately selecting a commercially available nozzle body (such as a straight nozzle or a fan nozzle) as the second and third injection nozzles N ₂ and N ₃ , the injection characteristics (eg, injection angle and injection strength) are appropriately changed. can do. If at least one of the second and third injection nozzles N ₂ and N ₃ is unnecessary, a plug (similar to the plug 8 shown in FIG. 4) is replaced with a screw hole 6 instead of the unnecessary nozzle. _2, by screwing in 6 _3, at least one of the screw holes 6 _2, 6 ₃ can be closed at any time.

At the tip of the shank S, a stepped hole 7 having a small diameter hole 7a is formed at the tip end surface thereof, and the large diameter hole 7b of the stepped hole 7 connected to the small diameter hole 7a. the first injection nozzle N ₁ of circular cylindrical is fitted. The tip portion back of the shank portion S, the screw holes ₆₁ corresponding to the stepped hole 7 are opened and formed, the plug 8 is screwed into the screw hole ₆₁ (tapered plug in the illustrated example) is pressing the first discharge nozzle N ₁ through the spring 9 in the intermediate step portion 7c of the stepped hole 7 and holds the fitting state between the nozzle N ₁ and the large-diameter hole portion 7b.

[0016] Note that when the first discharge nozzle N ₁ so as to replace the different other nozzles of performance characteristics, remove with the spring 9 by loosening the plug 8, the nozzle N ₁ through screw holes ₆₁ outside To take out. The time of extraction of the nozzles N _1, for example from the small-diameter hole portion 7a side of the stepped hole 7, lightly the pin or the like by inserting the thick pins or the like than the thinner and the nozzle diameter of the nozzle N ₁ than the small diameter hole portion 7a The nozzle 8 may be pushed out of the large-diameter hole portion 7b by tapping or the like.

As the first injection nozzle N ₁ , similarly to the _second and third injection nozzles N ₂ and N ₃ , a commercially available nozzle body may be used. , And at least one of the third injection nozzles N ₂ and N ₃ may have the same structure as the first injection nozzle N ₁ .

The shank portion S is provided with a cutting fluid passage 10 for guiding a cutting fluid (also referred to as a coolant) as a cleaning fluid to each of the injection nozzles N _{1 to} N ₃ after the completion of the cutting. One end of the cutting fluid passage 10 is connected to an external cutting fluid supply source 12 via a connection passage 11 and a pipe provided in the other side wall 1 a of the holder body 1. A seal ring 13 surrounding the cutting fluid passage 10 is provided between the abutting surfaces of the shank portion S and the mounting holder H, and seals the communicating portion between the two passages 10 and 11.

The cutting fluid supply source 12 includes, for example, a cutting fluid storage tank 14 mounted on a lathe, and a pump P for pumping the cutting fluid in the tank 14 to the cutting fluid passage 10 side. One supply source and a second supply source composed of a high-pressure coolant unit CU capable of supplying a high-pressure cutting fluid are selectively used as needed. Incidentally, one of the first and second supply sources may be omitted.

Next, the operation of the above embodiment will be described. When the cutting of the work W (for example, the groove processing of the outer periphery of the work) is performed by a cutting tool (not shown), the processed portion of the work W and its surroundings, various parts of the lathe M, for example, the periphery of the chuck portion C and the cover 5 are involved. And a large amount of swarf adheres.

Then, when the cutting is completed, the tool rest (not shown) is rotated so that the front end of the cleaning tool T faces the work W, and then the high-pressure coolant unit CU or the pump P of the cutting fluid supply source 12 is operated. Is started, and the work W is also kept in a rotationally driven state. The cutting fluid pressure-fed from the cutting fluid supply source 12 passes through the external pipe, the connection passage 11 and the cutting fluid passage 10 and from the first to third injection nozzles N _{1 to} N ₃ , the workpiece W to be processed ( Since the jet is sprayed toward the outer peripheral groove Go), around the chuck portion C of the lathe M, and toward the cover 5, it is possible to clean the chips remaining in these portions after cutting, and to wash away the chips without scattering to the outside. Can be.

[0022] Accordingly, chips can be removed without performing a cleaning operation using a special high-pressure gas injection means such as an air blow as in the past, so that the time between the completion of processing and the setting of the next work is reduced. Can be shortened as much as possible and processing can be resumed quickly. In addition, since the cleaning operation by air blow or the like can be omitted, the adhesion and accumulation of chips on the cover 5 and the like that define the processing area of the lathe M can be effectively avoided, so that the processing area is always kept clean. And it can keep it clean, and also effectively prevents chips and cutting fluid from jumping out to the periphery of the lathe M, effectively preventing the floor and walls around the lathe M from becoming dirty or sticky with the cutting fluid. As much as possible, diffusion of cutting fluid mist can be avoided as much as possible.

Further, since the injection mode can be easily and easily changed only by replacing the injection nozzles N _{1 to} N ₃ with other injection nozzles having different performance characteristics. It is possible to always select the optimum injection nozzle according to the performance and the processing mode of the work, etc., so that an accurate cleaning effect can always be obtained.

FIGS. 5 to 7 show a second embodiment of the present invention. This embodiment is an embodiment in which the inner peripheral surface of a cylindrical workpiece W is cut (inner diameter processing), and a shank S of a cleaning tool T is provided along an axis of a workpiece W. and, on the tip portion of the shank portion S, the nozzle N ₁ morphism injection (in the illustrated example the inner peripheral groove Gi) to be processed portion of the workpiece W periphery may injected toward the is provided. Mounting structure of the injection nozzle N ₁ is basically the same first an injection nozzle N ₁ of the previous embodiment. A cutting fluid passage 10 similar to that of the previous embodiment is formed in the shank portion S, and the shank portion S is detachably attached to a tool post with a feed mechanism mounted at an appropriate position of the machine frame of the lathe M. Fixed.

In this embodiment, the cutting fluid is sprayed from the spray nozzle N ₁ of the cleaning tool T toward the inner circumferential groove Gi after the cutting of the inner circumferential groove Gi on the workpiece W is completed. Chips adhered and deposited in the inner circumferential groove Gi are effectively washed away.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various design changes can be made. For example, in the above-described embodiment, an NC lathe having a numerical control function is used, and the tool post has a plurality of types of cutting tools and a cleaning tool T arranged in a radial manner and fixed by the rotational displacement of the table itself. A structure in which one of the cutting tools or the cleaning tool T can be selectively made to face the work W, and automatically switches the operation position between the cutting tool and the cleaning tool T after the completion of the cutting process based on a predetermined program. The present invention can be applied to ordinary lathes other than NC lathes, and the turret is a common turret that can selectively mount a cutting tool and a cleaning tool T. Alternatively, a dedicated tool rest for the cutting tool and a dedicated support stand for the cleaning tool T may be separately provided on the machine frame of the lathe M. In this case, the switching of the operating position between the cutting tool and the cleaning tool after the completion of the cutting may be performed automatically by a robot or the like, or may be performed manually.

Further, as the object to be cleaned by the cleaning tool T, in the first embodiment, a processed portion (outer peripheral groove Go) on the outer periphery of the work W, the periphery of the chuck C of the lathe M, and the cover 5 are selected, and in the second embodiment, Although the processed part (inner circumferential groove Gi) on the inner periphery of the work W is selected, the present invention is not limited to the above-described cleaning target, and any part of the work or the lathe can be selected as the cleaned part. The location of the injection nozzle is set in accordance with the cleaning location.

[0028]

[Effect of the invention]

 As described above, according to the invention of each claim, the cutting fluid remaining on the lathe or the work can be washed out and removed by simply jetting the cutting fluid from the injection nozzle after the processing is completed. Chips can be effectively removed without using special high pressure gas injection means such as air blow to perform cleaning work, so that the time between the completion of machining and the setting of the next workpiece is minimized. Processing can be shortened and processing can be resumed quickly, improving work efficiency. In addition, since the cleaning operation by air blow or the like can be omitted, the adhesion and accumulation of chips on the wall surface, cover, etc., which define the machining area of the lathe can be effectively avoided. Can be kept clean and clean at all times, and chips and cutting fluid on the periphery of the lathe are also effectively prevented from splashing out, so that the floor and walls around the lathe become dirty or sticky with the cutting fluid. And the diffusion of cutting fluid mist can be avoided as much as possible. Further, simply changing the injection nozzle to another injection nozzle having a different performance characteristic can easily and easily change the injection mode, so that, for example, the supply performance of the cutting fluid supply source and the processing mode of the work can be improved. In addition, the optimal injection nozzle can always be selected, and an accurate cleaning effect can always be obtained.

According to the invention of claim 2, the cutting fluid is sprayed from a plurality of spray nozzles corresponding to the plurality of cleaning target parts including the lathe and the work, respectively. Washing and removal can be performed accurately. Moreover, since the cutting fluid can be supplied to the plurality of injection nozzles from a common cutting fluid passage in the shank portion, the structure can be simplified accordingly.

Further, according to the invention of claim 3, since at least one injection nozzle is a nozzle body which is screwed into a screw hole provided at the front end of the shank portion so as to open to the outer surface thereof, it is commercially available. The various nozzle bodies can be used, and the mounting work and the replacing work can be performed easily and quickly. If there is an unnecessary injection nozzle, the corresponding screw hole can be easily closed with a plug.

[Brief description of the drawings]

FIG. 1 shows a cleaning tool and a lathe according to a first embodiment of the present invention.
Front view showing the relationship with the workpiece

FIG. 2 is a view taken in the direction of arrow 2 in FIG. 1;

FIG. 3 is a view taken in the direction of arrow 3 in FIG. 1;

FIG. 4 is a longitudinal sectional view of a main part of the cleaning tool according to the first embodiment.

FIG. 5 is a sectional view showing a relationship between a cleaning tool and a workpiece according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a longitudinal sectional view of a main part of a cleaning tool according to a second embodiment.

[Explanation of symbols]

NC lathe W as M ----- lathe ----- workpiece T ----- cleaning tool S ----- shank portion N ₁ to N ₃ · · first to third as the injection nozzle Injection nozzle 6 ₂ , 6 ₃ ··· Screw hole 10 ··· Cutting fluid passage 12 ··· Cutting fluid supply source

Claims (3)

[Utility model registration claims] 1. A cutting fluid is sprayed onto a tip portion of a shank portion (S) attachable to a machine frame of a lathe (M) toward at least one of the lathe (M) and the workpiece (W) to be cleaned. The injection nozzles (N _{1 to} N ₃ ) are detachably mounted, and the injection nozzles (N _{1 to} N ₃ ) are connected to an external through a cutting fluid passage (10) formed in the shank portion (S). Cleaning tool for lathes, characterized in that it is connected to a cutting fluid supply (12). 2. A plurality of injection nozzles (N _{1 to} N ₃ ), each of which can inject a cutting fluid toward a plurality of different portions to be cleaned of the lathe (M) and the workpiece (W). 2. The lathe according to claim 1, wherein the plurality of injection nozzles (N _{1 to} N ₃ ) are arranged in parallel with a cutting fluid passage (10) in the shank part (S). ₃ . Cleaning tools for. 3. At least one injection nozzle (N ₂ , N
₃ ) is a nozzle body which is screwed into a screw hole (6 ₂ , 6 ₃ ) provided at the tip of the shank portion (S) so as to open to the outer surface thereof, and the screw hole (6 ₂ , 6). _3. The cleaning tool for a lathe according to claim 2, wherein ₃ ) is closable by a plug (8) screwable thereto.