Cleaning Tools

Abstract

A cleaning tool that reduces the workload involved in cleaning the periphery of a spindle and can easily and accurately remove foreign matter from the periphery of a spindle. [Solution] A cleaning tool for cleaning the periphery of a spindle of a machine tool, comprising an attachment shaft part 2 attached to the spindle of the machine tool, and a head part 3 disposed at the tip of the attachment shaft part 2. The attachment shaft part 2 has a cleaning liquid flow path 4 that introduces cleaning liquid CL supplied from the machine tool to the head part 3. The head part 3 has a cleaning liquid reservoir 5 communicating with the cleaning liquid flow path 4, and has a plurality of jet nozzles 6 that spray the cleaning liquid CL supplied into the cleaning liquid reservoir 5 to the outside. The jet nozzles 6 provided in the head part 3 are composed of a group of jet nozzles 6a that spray the cleaning liquid CL in the radial direction, and another group of jet nozzles 6b that spray the cleaning liquid CL towards the spindle side.

Description

[Technical field]

[0001] This invention relates to a cleaning tool, and more particularly to a cleaning tool for cleaning the periphery of a spindle of a machine tool. [Background technology]

[0002] To achieve high-precision machining in machine tools such as machining centers, high-precision tooling that can hold the tool securely even when rotating at high speeds and has little tool runout is required. Low-precision tooling causes vibration, which reduces machining precision and shortens tool life.

[0003] As a tool holder for realizing high-precision tooling, for example, a tool holder equipped with a two-surface constrained shank with a tapered portion and a flange portion, such as an HSK shank or a BBT shank, is preferably used, but with this type of tool holder, if foreign matter such as cutting chips gets mixed into the constrained surface of the shank when changing the tool, the tool will be attached to the spindle in a tilted state with respect to the spindle, resulting in a decrease in machining accuracy. Therefore, for this type of machine tool, a machine tool equipped with a spray nozzle inside the device housing of the machine tool that sprays cleaning liquid toward the tool changing position has been proposed (see Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-37581 Summary of the Invention [Problem to be solved by the invention]

[0005] However, such conventional machine tools have the following problems, and improvements thereto are desired.

[0006] That is, in conventional machine tools, the cleaning liquid injection nozzle is located on the machine tool housing side, so the distance between the cleaning liquid injection nozzle and the constraint surface of the shank of the tool holder is large, and the periphery of the spindle head, including the constraint surface of the shank, cannot be sufficiently cleaned. In other words, in conventional machine tools, foreign matter such as cutting chips may remain around the spindle head, which may result in a decrease in the machining accuracy of the machine tool.

[0007] Therefore, in conventional machine tools, the method of removing foreign matter around the spindle head involved manually spraying cleaning fluid using a coolant gun or the like, but this cleaning work involved a large workload.

[0008] The present invention was made in consideration of these problems, and its purpose is to provide a cleaning tool that reduces the workload involved in cleaning the area around the spindle and can easily and accurately remove foreign matter around the spindle. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, one embodiment of the cleaning tool of the present invention is a cleaning tool for cleaning the periphery of a spindle of a machine tool, comprising a mounting shaft portion attached to the spindle of the machine tool and a head portion disposed at the tip of the mounting shaft portion, the mounting shaft portion having a cleaning liquid flow path that introduces cleaning liquid supplied from the machine tool into the head portion, the head portion having a cleaning liquid reservoir that communicates with the cleaning liquid flow path and having a plurality of spray nozzles that spray the cleaning liquid supplied into the cleaning liquid reservoir to the outside, the spray nozzles being arranged to spray the cleaning liquid in the direction of the spindle side.

[0010] According to this embodiment, the cleaning liquid supplied from the machine tool is introduced into a cleaning liquid reservoir in the head section through a cleaning liquid flow path in the mounting shaft section, and is then sprayed to the outside from multiple jet nozzles provided in the head section through the cleaning liquid reservoir. The multiple jet nozzles are arranged to spray the cleaning liquid toward the spindle side, so that the cleaning liquid sprayed from these jet nozzles is sprayed from the head section toward the spindle side. Therefore, in a machine tool equipped with the cleaning tool according to the present invention, the cleaning liquid is sprayed around the tip of the spindle (around the spindle head), which automatically cleans and removes foreign matter such as cutting chips adhering to the periphery of the spindle head.

[0011] In another embodiment, the cleaning tool of the present invention is a cleaning tool for cleaning the periphery of a spindle of a machine tool, comprising a mounting shaft portion mounted on the spindle of the machine tool and a head portion disposed at the tip of the mounting shaft portion, the mounting shaft portion having a cleaning liquid flow path that introduces cleaning liquid supplied from the machine tool into the head portion, the head portion having a cleaning liquid reservoir communicating with the cleaning liquid flow path and having a plurality of jet nozzles that spray the cleaning liquid supplied into the cleaning liquid reservoir to the outside, the jet nozzles being composed of a group of jet nozzles that spray toward the spindle side and another group of jet nozzles that spray the cleaning liquid in a radial direction.

[0012] According to this embodiment, the cleaning liquid supplied from the machine tool is introduced into the cleaning liquid reservoir of the head part through the cleaning liquid flow path of the mounting shaft part, and is then sprayed to the outside from the multiple jet nozzles provided in the head part through the cleaning liquid reservoir. The multiple jet nozzles are composed of a group of jet nozzles that spray the cleaning liquid in the radial direction and another group of jet nozzles that spray the cleaning liquid toward the spindle side, so that the cleaning liquid sprayed from these jet nozzles is sprayed in the radial direction of the head part and in the spindle side direction. Therefore, in a machine tool equipped with the cleaning tool according to the present invention, the cleaning liquid is sprayed around the spindle tip and around the spindle tip (around the spindle head), and thus foreign matter such as chips attached around the spindle tip and around the spindle head are automatically washed and removed.

[0013] As a preferred embodiment, the present invention has the following configuration. (1) The head portion is in the form of a disk having the cleaning liquid reservoir therein, and the spray nozzles are arranged at equal intervals on the side surface thereof.

[0014] According to this embodiment, the multiple spray nozzles provided in the head portion are arranged at equal intervals on the side of the head portion, so that the cleaning liquid can be sprayed evenly and without unevenness at least around the spindle head, thereby preventing leakage of cleaning liquid around the spindle head.

[0015] (2) The jet nozzles constituting the one jet nozzle group and the jet nozzles constituting the other jet nozzle group are arranged alternately.

[0016] According to this embodiment, the jet nozzles which spray cleaning liquid radially and the jet nozzles which spray cleaning liquid toward the spindle side are arranged alternately on the side of the head portion, so that the cleaning liquid can be sprayed evenly around the tip of the spindle and around the spindle head, and both the periphery of the tip of the spindle and the periphery of the spindle head can be cleaned without bias.

[0017] (3) The spray nozzle is configured as a spherical nozzle having a spray flow path, one end of which is connected to the cleaning liquid reservoir and the other end of which is connected to a spray outlet of the cleaning liquid, and the head portion is formed with a nozzle accommodating portion that rotatably accommodates the spherical nozzle.

[0018] According to this embodiment, the spray nozzle configured as a sphere is rotatably accommodated within the nozzle accommodating portion of the head portion, so that the spray nozzle within the nozzle accommodating portion can be moved freely and the direction of the spray outlet (the direction in which the cleaning liquid is sprayed) can be adjusted to any direction.

[0019] (4) The nozzle housing is characterized by having a fixing part for fixing the orientation of the spherical nozzle. According to this device, since the adjusted spray direction can be fixed, for example, the spray nozzle can be fixed in a desired direction so that the cleaning liquid is sprayed intensively in areas with a large amount of foreign matter. Effect of the Invention

[0020] According to this invention, the head of the cleaning tool attached to the spindle of the machine tool is equipped with multiple spray nozzles that spray cleaning liquid toward the spindle, so that the cleaning liquid can be sprayed around the spindle head, thereby accurately and easily cleaning and removing foreign matter such as cutting chips that have adhered to the periphery of the spindle head.

[0021] In another embodiment of the present invention, the multiple jet nozzles are configured with one group of jet nozzles that jet in the spindle side direction and another group of jet nozzles that jet cleaning fluid in the radial direction, so that cleaning fluid can be sprayed around the spindle head and around the tip of the spindle. Therefore, according to this embodiment, foreign matter such as cutting chips that have adhered to the periphery of the spindle head and around the tip of the spindle can be accurately and easily washed away.

[0022] In addition, the cleaning tool of the present invention is equipped with multiple spray nozzles that spray the cleaning liquid supplied from the machine tool toward the spindle side, which is the opposite direction to the supply direction of the cleaning liquid. Therefore, cleaning and removal of foreign matter adhering to the area around the spindle head, which was previously done manually using a coolant gun, can be performed automatically and effectively, significantly reducing the workload required for cleaning around the spindle head. [Brief description of the drawings]

[0023] [Figure 1] 1 is a perspective view showing one embodiment of a cleaning tool according to the present invention, the cleaning tool being viewed from the mounting shaft side. FIG. [Diagram 2] FIG. 2 is a perspective view showing one embodiment of the cleaning tool, in which the cleaning tool is viewed from the head portion side. [Diagram 3]FIG. 2 is a front view of one embodiment of the cleaning tool. [Figure 4] FIG. 2 is a left side view of the cleaning tool according to an embodiment of the present invention. [Diagram 5] FIG. 4 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. [Figure 7] 1 is a front view showing a state in which a cleaning tool according to the present invention is attached to a vertical shaft type main shaft of a machine tool; [Figure 8] FIG. 2 is a perspective view showing another embodiment of the cleaning tool according to the present invention, the cleaning tool being viewed from the mounting shaft side. [Figure 9] FIG. 11 is a perspective view showing another embodiment of the cleaning tool, the cleaning tool being viewed from the head portion side. [Figure 10] FIG. 4 is a front view of another embodiment of the cleaning tool. [Figure 11] FIG. 2 is a right side view of the cleaning tool according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In this specification and the drawings, components having substantially the same functional configurations are designated by the same reference numerals, and duplicated explanations will be omitted.

[0025] EMBODIMENT 1 The cleaning tool 1 of the present invention is a cleaning tool for cleaning the area around the spindle of a machine tool (e.g., a machining center), and as shown in Figures 1 to 7, has as its main parts a mounting shaft portion 2 that is mounted on the spindle 101 of the machine tool 100, and a head portion 3 that is disposed at the tip of the mounting shaft portion 2.

[0026] The mounting shaft 2 is a portion that constitutes a shank for mounting the cleaning tool 1 to a tool holder 102, and this mounting shaft 2 is mounted to a spindle 101 of the machine tool 100 via the tool holder 102. Specifically, as shown in Figures 1 and 5, the mounting shaft 2 is formed of a hollow, substantially cylindrical metal member, and a space portion that passes through the center of the mounting shaft 2 in the axial direction (longitudinal direction) constitutes a cleaning liquid flow path 4 that introduces a fluid (cleaning liquid CL) supplied from the machine tool 100 to the head portion 3.

[0027] The head portion 3 is the part that sprays the cleaning liquid CL supplied from the mounting shaft portion 2 to the outside, and is made of a metal member having a cleaning liquid reservoir 5 that communicates with the above-mentioned cleaning liquid flow path 4, and a plurality of spray nozzles 6, 6, ... that spray the cleaning liquid CL supplied into the cleaning liquid reservoir 5 to the outside.

[0028] In this embodiment, as shown in Figs. 1 and 5, the head portion 3 has a disk-like shape arranged perpendicular to the mounting shaft portion 2, and a space constituting the cleaning liquid reservoir 5 is formed inside the head portion 3. The cleaning liquid reservoir 5 is formed by forming a concave recess at the tip side of the head portion 3, the bottom of which communicates with the cleaning liquid flow path 4, and attaching a lid body 7 to this recess. As shown in Fig. 5, the lid body 7 is in the form of a fitting lid that fits around the periphery of the concave recess, and has a sealed structure that prevents the cleaning liquid CL in the cleaning liquid reservoir 5 from leaking out. In the figures, reference numeral 8 denotes a hexagonal socket head screw that detachably attaches the lid body 7 to the head portion 3.

[0029] In this embodiment, the structure of the head portion 3 is shown as being an integrated structure in which the bottom side of the head portion 3 is integrally formed with the tip side of the mounting shaft portion 2 (see Figure 6), but for example, the head portion 3 may be formed separately from the mounting shaft portion 2 and attached to the tip side of the mounting shaft portion 2 by screwing or welding, etc.

[0030] The jet nozzle 6 is a nozzle for jetting the cleaning liquid CL supplied from the machine tool 100 through the cleaning liquid flow path 4 to the outside, and in this embodiment, is composed of a group of jet nozzles 6a that jets the cleaning liquid CL toward the spindle side (see arrow A in FIG. 7) and another group of jet nozzles 6b that jets the cleaning liquid CL in the radial direction (a direction substantially perpendicular to the spindle direction: see arrow B in FIG. 7). Here, the group of nozzles 6a and the other group of nozzles 6b are classifications of the jet nozzles 6 based on the jet direction of the cleaning liquid CL, and the specific configurations of the individual jet nozzles 6 that constitute each of the nozzle groups 6a and 6b are common. Therefore, the configuration of one of the jet nozzles 6 will be described below, and a duplicated description of the other jet nozzles 6 will be omitted.

[0031] As shown in Fig. 1 and Fig. 5, the spray nozzle 6 is in the form of a spherical nozzle in which the nozzle itself is configured as a sphere. Specifically, the spray nozzle 6 is configured as a metallic sphere having a spray flow path 10, one end of which communicates with the cleaning liquid reservoir 5 and the other end of which communicates with a spray outlet 9 of the cleaning liquid CL (see Fig. 5). This spherical spray nozzle 6 is accommodated in a nozzle accommodation hole (nozzle accommodation section) 11 formed on the side surface of the head section 3. The nozzle accommodation hole 11 is configured as a spherical recessed section that corresponds to the outer shape of the spherical spray nozzle 6, and by accommodating the spray nozzle 6 in this recessed section, the spray nozzle 6 is held in the head section 3 without falling off, and the spray nozzle 6 is rotatably held so that the direction of the spray outlet 9 opened on the surface of the sphere can be freely changed.

[0032] In relation to this, the cleaning tool 1 shown in this embodiment is provided with a fixing screw (fixing part) 12 for fixing the movement of the spray nozzle 6 at a position adjacent to the nozzle receiving hole 11. In this embodiment, a hexagonal socket head screw is used as the fixing screw 12, and by screwing in this hexagonal socket head screw, the head (countersunk head) of the screw tightens and fixes the surface of the spray nozzle 6 to the head part 3 side (see FIG. 5). By providing the fixing screw 12 for fixing the orientation of the spray nozzle 6 in this way, the position of each spray nozzle 6, i.e., the orientation of the spray port 9, can be adjusted and set to any orientation.

[0033] The injection nozzle 6 configured in this manner is arranged on the side surface of the head portion 3, with the injection nozzles 6, 6, ... constituting the above-mentioned group of injection nozzles 6a and the injection nozzles 6, 6, ... constituting the other group of injection nozzles 6b each being equally spaced apart, and the injection nozzles 6, 6, ... constituting the group of injection nozzles 6a and the injection nozzles 6, 6, ... constituting the other group of injection nozzles 6b being alternately arranged.

[0034] Specifically, in this embodiment, as shown in Fig. 4, 12 jet nozzles 6, 6, ... are provided on the side of the head unit 3, and these 12 jet nozzles 6, 6, ... are arranged at equal intervals, and the jet nozzles 6 constituting one jet nozzle group 6a are arranged at a position adjacent to the jet nozzles 6 constituting another jet nozzle group 6b, and the jet nozzles 6 constituting each nozzle group 6a, 6b are arranged alternately. In this way, by arranging the jet nozzles 6 at equal intervals, it is possible to spray the cleaning liquid evenly around the tip of the spindle and around the spindle head, as described later. Also, by arranging the jet nozzles 6 constituting each nozzle group 6a, 6b alternately, it is possible to spray the cleaning liquid CL evenly around the tip of the spindle and around the spindle head.

[0035] Next, a procedure for cleaning the periphery of the spindle of a machine tool 100 using the cleaning tool 1 according to the present invention will be described with reference to Fig. 7. The machine tool 100 used here has a fluid supply function for supplying a cleaning liquid (for example, a cleaning detergent, a coolant for cooling, or other fluid) CL from the tip of the spindle 101.

[0036] When using the cleaning tool 1, first, the mounting shaft part 2 of the cleaning tool 1 is mounted on the tool holder 102 of the machine tool 100. As is well known, the tool holder 102 is a holder for mounting a tool on the spindle 101 of the machine tool 100 in an exchangeable manner. The standard (taper standard) of the shank part of the tool holder 102 to which the cleaning tool 1 is mounted is not limited, but a tool holder equipped with a two-face restraint shank part such as an HSK shank or a BBT shank is used as a tool holder compatible with high-precision tooling. Meanwhile, the chuck mechanism of the tool holder 102 may be any chuck mechanism as long as it is capable of mounting the mounting shaft part 2. For example, a collet chuck mechanism or the like is used.

[0037] Once the attachment of the cleaning tool 1 to the tool holder 102 is complete, the tool holder 102 to which the cleaning tool 1 is attached is then attached to the spindle 101 of the machine tool 100. This attachment can be performed manually or automatically. For example, if the machine tool 100 is equipped with an automatic tool changer (ATC) (not shown), the tool holder 102 to which the cleaning tool 1 is attached is attached to the spindle 101 of the machine tool 100 by the automatic tool changer.

[0038] 7 shows a state in which a tool holder 102 to which a cleaning tool 1 is attached is attached to a spindle 101 of a machine tool 100. In the illustrated example, the spindle 101 is a vertical axis, and as shown in this figure, the cleaning tool 1 attached to the spindle 101 is arranged such that the nozzles 9 of the jet nozzles 6 of one jet nozzle group 6a that sprays the cleaning liquid CL toward the spindle side are arranged directly above the head unit 3 as indicated by arrow A in the figure, and the nozzles 9 of the jet nozzles 6 of another jet nozzle group 6b that sprays the cleaning liquid CL in the radial direction are arranged horizontally as indicated by arrow B in the figure.

[0039] Then, when the attachment of the tool holder 102 to the spindle 101 is completed, the cleaning liquid CL is supplied from the spindle 101 to the attachment shaft portion 2 of the cleaning tool 1 using a fluid supply function provided in the machine tool 100. As a result, the cleaning liquid CL supplied to the attachment shaft portion 2 is introduced into the cleaning liquid reservoir 5 of the head portion 3 via the cleaning liquid flow path 4, and the cleaning liquid CL introduced into the cleaning liquid reservoir 5 is supplied to each jet nozzle 6 communicating with the cleaning liquid reservoir 5. Thus, the cleaning liquid CL supplied to each jet nozzle 6 is jetted outward from the jet port 9 via the jet flow path 10 of the jet nozzle 6.

[0040] As a result, the cleaning liquid CL is sprayed from each of the jet nozzles 6 of the jet nozzle group 6a provided on the head portion 3 of the cleaning tool 1 in a direction directly above the head portion 3, and foreign matter such as chips adhering to the connection portion between the tool holder 102 and the spindle 101 and its surroundings (i.e., around the spindle head) is washed away by the cleaning liquid CL, and at the same time, the cleaning liquid CL is sprayed from each of the jet nozzles 6 of the other jet nozzle group 6b in a horizontal direction, and foreign matter such as chips adhering to the wall surfaces around the head portion 3 (i.e., around the tip of the spindle) is washed away by the cleaning liquid CL. Note that at this time, by rotating the spindle 101, the cleaning liquid CL is sprayed evenly around the tip of the spindle and around the spindle head, and an even more excellent cleaning effect is achieved compared to when the spindle 101 is not rotating.

[0041] In this way, according to the cleaning tool 1 of the present invention, the cleaning liquid CL supplied from the machine tool 100 is introduced into the cleaning liquid reservoir 5 of the head section 3 via the cleaning liquid flow path 4 of the mounting shaft section 2, and then sprayed to the outside from the multiple spray nozzles 6, 6, ... provided on the head section 3 via the cleaning liquid reservoir 5, thereby automatically cleaning the area around the tip of the spindle and the area around the spindle head of the machine tool 100. Therefore, the spray nozzle 9 for the cleaning liquid CL can be positioned near the area around the tip of the spindle or the area around the spindle head, and foreign matter such as chips adhering around the tip of the spindle or the area around the spindle head can be easily and accurately removed.

[0042] In particular, the cleaning tool 1 of the present invention is equipped with a group of spray nozzles 6a that spray the cleaning liquid CL supplied from the machine tool 100 toward the spindle side, which is the opposite direction to the supply direction of the cleaning liquid. As a result, foreign matter adhering to the periphery of the spindle head, which was previously cleaned manually, can be automatically and effectively removed, significantly reducing the workload required for cleaning the periphery of the spindle head.

[0043] Furthermore, by accurately removing foreign matter adhering to the periphery of the spindle head in this manner, in a machine tool 100 that uses a tool holder that achieves high-precision tooling (for example, a tool holder equipped with a two-face constraint type shank), it is possible to prevent foreign matter from getting into the shank constraint surface during tool replacement, thereby improving the machining accuracy of the machine tool 100.

[0044] EMBODIMENT 2 Next, another embodiment of the cleaning tool according to the present invention will be described with reference to FIGS. The cleaning tool 1'1 shown in the second embodiment has a head unit 3 equipped with a plurality of spray nozzles 6, 6, ..., which are configured only by a group of spray nozzles 6a that spray cleaning liquid CL in the spindle side direction, and the other configuration is common to the cleaning tool 1 shown in the above-mentioned embodiment 1. Therefore, the same reference numerals are used for the common parts, and the description thereof will be omitted.

[0045] The cleaning tool 1' shown in this embodiment is a cleaning tool for focusing on cleaning the area around the spindle head, and like the cleaning tool 1 in the above-mentioned embodiment 1, it has as its main parts a mounting shaft portion 2 that is mounted on the spindle 101 of the machine tool 100, and a head portion 3 that is disposed at the tip of the mounting shaft portion 2.

[0046] 8 and 11, all of the multiple jet nozzles 6, 6, ... provided on the head unit 3 are configured as jet nozzles 6 that jet the cleaning liquid CL in the spindle side direction. That is, in the above-mentioned embodiment 1, the head unit 3 is provided with a group of jet nozzles 6a that jet the cleaning liquid CL in the spindle side direction and another group of jet nozzles 6b that jet the cleaning liquid CL in the radial direction as the multiple jet nozzles 6, 6, ..., but in this embodiment, instead of the jet nozzles 6, 6, ... constituting the other group of jet nozzles 6b, all of the jet nozzles 6 are configured as the group of jet nozzles 6a that jet the cleaning liquid CL in the spindle side direction.

[0047] In this way, by configuring the jet nozzle 6 provided on the head unit 3 only with the jet nozzle 6 that jets the cleaning liquid CL in the spindle side direction, all of the cleaning liquid CL supplied from the machine tool 100 is jetted toward the periphery of the spindle head, so that foreign matter such as cutting chips adhering to the periphery of the spindle head can be intensively cleaned. Therefore, the cleaning tool 1' shown in this embodiment can effectively prevent foreign matter adhering to the periphery of the spindle head from getting into the shank constraint surface, and the machining accuracy of the machine tool 100 can be improved.

[0048] It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and the present invention is not limited to these, and various design modifications are possible within the scope of the present invention.

[0049] For example, in the above-described embodiment, all the jet nozzles 6 provided in the head unit 3 are configured as movable (rotatable) jet nozzles, but it is also possible to configure some of the jet nozzles 6 as movable jet nozzles and the other jet nozzles 6 as fixed jet nozzles. For example, it is also possible to adopt a configuration in which the jet nozzle 6 (6b) that jets the cleaning liquid CL in the radial direction is configured as a fixed jet nozzle, and the jet nozzle group 6 (6a) that jets the cleaning liquid CL toward the spindle side is configured as a movable jet nozzle.

[0050] In the above-described embodiment, the case where twelve jet nozzles 6 are arranged on the head unit 3 has been shown, but the number of jet nozzles 6 and the size of the jet nozzles 6 (the diameter of the jet orifice 9) can be appropriately changed depending on the environment in which the cleaning tool 1 is used. For example, when used in a machine tool 100 that generates a lot of foreign matter such as cutting chips, the cleaning tool 1 having a large number of jet nozzles 6 or the cleaning tool 1 having a large diameter of the jet orifice 9 can be used to effectively remove foreign matter adhering to the spindle head and its surroundings.

[0051] In the above embodiment, a spherical nozzle is used as the form of the injection nozzle 6, but it is of course possible to use a nozzle having a form other than a sphere. Furthermore, in the above embodiment, the fixing screw 12 is used as the fixing part for fixing the direction of the injection nozzle 6, but it is also possible to use a structure other than the fixing screw 12 as long as it is a fixing mechanism that can stop and fix the movement of the injection nozzle 6.

[0052] In addition, in the above-described embodiment, the head portion 3 is configured in a disk shape, but as long as the head portion 3 is configured to be capable of arranging multiple injection nozzles 6 on its side, its shape can be appropriately changed, for example, to a rectangular shape or a triangular shape when viewed from the axial direction.

[0053] In the above embodiment, the jet nozzles 6 of the jet nozzle group 6a that jets the cleaning liquid CL in the spindle side direction and the jet nozzles 6 of the other jet nozzle group 6b that jets the cleaning liquid CL in the radial direction are alternately arranged in a 1:1 ratio, but it is also possible to change the arrangement ratio of the jet nozzles 6 of the jet nozzle group 6a to the jet nozzles 6 of the other jet nozzle group 6b. For example, it is also possible to arrange the jet nozzles 6 of the jet nozzle group 6a to the jet nozzles 6 of the other jet nozzle group 6b in a 1:2 ratio, and by configuring in this way, it is also possible to configure so that more cleaning liquid CL is jetted in the spindle side direction than in the radial direction.

[0054] In the above embodiment, the cleaning tool 1 according to the present invention is applied to the vertical axis machine tool 100, but the cleaning tool 1 can also be applied to a horizontal axis machine tool with a horizontal spindle. In particular, in the case of a horizontal axis machine tool, chips generated during machining often scatter and adhere to the ceiling surface of the machining chamber. If the chips adhered to the ceiling surface are left alone, they may fall naturally and adhere to the tool holder 102 or be caught by the restraining surface of the tool holder 102. The cleaning tool 1 according to the present invention is configured to spray the cleaning liquid CL in the radial direction as well, so that by applying it to a horizontal axis machine tool, chips adhered to the ceiling surface of the machining chamber can be effectively cleaned and removed. [Explanation of symbols]

[0055] 1, 1′ Cleaning equipment 2 Mounting shaft 3 Head section 4. Cleaning fluid flow path 5. Cleaning solution reservoir 6. Injection nozzle 7 Lid 8 Hexagonal Socket Head Screw 9 Nozzle 10 Injection channel 11 Nozzle housing hole (nozzle housing part) 100 Machine tools 101 Main axis 102 Tool holder CL cleaning solution

Claims

1. A cleaning tool for cleaning the periphery of a spindle of a machine tool, comprising: The machine tool has a mounting shaft portion that is mounted on a spindle of a machine tool, and a head portion that is disposed at a tip of the mounting shaft portion, the mounting shaft portion has a cleaning liquid flow path that introduces a cleaning liquid supplied from the machine tool into the head portion, the head portion has a cleaning liquid reservoir communicating with the cleaning liquid flow path, and has a plurality of spray nozzles for spraying the cleaning liquid supplied into the cleaning liquid reservoir to the outside; The injection nozzle is disposed so as to inject the cleaning liquid in a direction toward the spindle side. A cleaning tool characterized by:

2. A cleaning tool for cleaning the periphery of a spindle of a machine tool, comprising: The machine tool has a mounting shaft portion that is mounted on a spindle of a machine tool, and a head portion that is disposed at a tip of the mounting shaft portion, the mounting shaft portion has a cleaning liquid flow path that introduces a cleaning liquid supplied from the machine tool into the head portion, the head portion has a cleaning liquid reservoir communicating with the cleaning liquid flow path, and has a plurality of spray nozzles for spraying the cleaning liquid supplied into the cleaning liquid reservoir to the outside; The jet nozzles are composed of a group of jet nozzles that jet in the direction of the spindle side and another group of jet nozzles that jet the cleaning liquid in a radial direction. A cleaning tool characterized by:

3. The head portion is in the form of a disk having the cleaning liquid reservoir therein, and the spray nozzles are arranged at equal intervals on the side surface of the head portion.

3. A cleaning tool according to claim 1 or 2.

4. The jet nozzles constituting the one group of jet nozzles and the jet nozzles constituting the other group of jet nozzles are arranged alternately.

3. A cleaning tool according to claim 2.

5. the spray nozzle is configured as a spherical nozzle having a spray flow passage, one end of which is connected to the cleaning liquid reservoir and the other end of which is connected to a spray port of the cleaning liquid; The head portion is formed with a nozzle housing portion that rotatably houses the spherical nozzle.

3. A cleaning tool according to claim 1 or 2.

6. The nozzle accommodating portion is provided with a fixing portion that fixes the orientation of the spherical nozzle.

6. A cleaning tool according to claim 5.

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