JP5856496B2 - Cutting fluid supply device - Google Patents

Description

  The present invention relates to a cutting fluid supply apparatus that can be suitably used when supplying a cutting fluid or a coolant to a workpiece or a tool during operation of a machine tool, for example.

  For example, a cutting fluid supply device that supplies cutting fluid or coolant fluid to a workpiece or tool during operation of a machine tool is known (see Patent Document 1). This cutting fluid supply device includes a spherical tank, a nozzle for injecting the cutting fluid provided in the tank, a fluid supply pipe for supplying cutting fluid from a cutting fluid supply source to the tank, and two motors for rotating the tank. The cutting fluid is supplied.

JP 7-185992 A

  In the cutting fluid supply apparatus described above, the tank is rotationally driven by two motors, and the spraying direction of the cutting fluid can be changed. In such a cutting fluid supply apparatus, it is necessary to dispose two motors for changing the direction of the coolant spray nozzle in two directions in directions different from each other by 90 °. For this reason, the arrangement (position) of the motor is limited, and it is difficult to reduce the size of the apparatus.

  Therefore, although not yet known at the time of filing of the present invention, a cutting fluid supply device 7 related to the present invention as shown in FIG. 10 is considered. Here, FIG. 10 is an explanatory view of the cutting fluid ejection device 7 related to the present invention, and is a front view showing a configuration in the vicinity of the cutting fluid ejection nozzle 710.

  The cutting fluid supply device 7 includes a cutting fluid ejection nozzle 710 that ejects the cutting fluid, a cutting fluid supply hose (not shown) that supplies the cutting fluid to the cutting fluid ejection nozzle 710, and three bevel gears 721, 722, and 723. (720), a bracket 740 for supporting them, and a first motor 731 (730) and a second motor 732 (730) for driving the first and second bevel gears 721 and 722, respectively. As a result, the cutting fluid is supplied from a cutting fluid supply hose (not shown) to the cutting fluid injection nozzle 710 and is injected from the tip toward the tool or workpiece. Then, the tip of the cutting fluid injection nozzle 710 rotates in the left-right direction in FIG. 10 or in the up-down direction depending on the combination of the rotation directions of the bevel gear 720 that rotates by driving the motor 730. It has become.

  The cutting fluid supply device 7 related to the present invention having such a configuration arranges the first motor 731 and the second motor 732 so as to face each other with the cutting fluid injection nozzle 710 interposed therebetween, and Since the cutting fluid injection nozzle 710 is moved using the bevel gear 720, the structure can be simplified and the apparatus can be miniaturized, and the above-described problems of the prior art can be solved.

  However, since the direction of the cutting fluid supply hose connection portion of the cutting fluid supply device changes over a wide range of angles during the operation of the cutting fluid supply device 7, the cutting fluid injection nozzle 710 and a not shown cutting fluid supply tank (cutting fluid) The cutting fluid supply hose that is long to some extent must be connected to the supply source), and the cutting fluid supply hose moves greatly as the cutting fluid injection nozzle 710 operates. Therefore, when installing this cutting fluid supply device 7, it is necessary to ensure a sufficient movable region of the cutting fluid supply hose (a space in which the cutting fluid supply hose itself moves) so as not to interfere with the cutting device or other equipment. In addition, it is difficult to save the space for arranging the cutting fluid supply device 7 and the cutting fluid supply tank.

  Moreover, since the cutting fluid supply hose is pulled vigorously as the cutting fluid injection nozzle 710 rotates, it is necessary to frequently perform maintenance due to deterioration of the cutting fluid supply hose.

  In addition, since the direction of the cutting fluid supply hose connection portion of the cutting fluid supply device 7 changes over a wide range of angles during the operation of the cutting fluid supply device 7, a long cutting fluid supply hose is used as the cutting fluid supply device 7. If the cutting fluid supply hose moves vigorously in a wide space, it is not preferable in terms of the working environment.

The object of the present invention is to make the space for moving the cutting fluid supply hose connected to the cutting fluid supply device as small as possible during operation of the cutting fluid supply device, and to simplify the structure in the vicinity of the cutting fluid injection nozzle, thereby narrowing the machine tool. An object of the present invention is to provide a cutting fluid supply device that reliably supplies cutting fluid to a part.

In order to solve the above-described problem, a cutting fluid supply apparatus according to claim 1 of the present invention is provided.
In a cutting fluid supply device that supplies cutting fluid and coolant fluid to workpieces and tools of machine tools,
A base portion having an installation surface for a machine tool; a first motor attached to the base portion;
A second motor attached to the base portion alongside the first motor such that a rotation center axis line coincides with a rotation center axis line of the first motor;
A housing attached to the base portion and having a bevel gear inside;
A flow path forming member that is attached to a bevel gear provided in the housing and that enables cutting fluid flowing from a cutting fluid supply hose connected to the housing to be sprayed in a desired direction, and a cutting fluid spray nozzle are provided.
The second motor includes a hollow output shaft that transmits the output of the second motor, and includes an output transmission shaft that passes through the hollow output shaft and transmits the output of the first motor.
The bevel gear is pivotally supported in the housing and has a first bevel gear whose axis coincides with the output shaft of the first motor, and an output shaft orthogonal to the output shaft of the first bevel gear. And a second bevel gear pivotally supported in the housing in a state of meshing with the first bevel gear,
A part of the flow path forming member is formed so that a central axis thereof corresponds to a central axis of the first bevel gear, and a remaining part of the flow path forming member has a central axis of the first bevel gear. Formed to correspond to the central axis of the second bevel gear,
The first bevel gear rotates according to the rotation of the output transmission shaft connected to the output shaft of the first motor, and meshes with the first bevel gear according to the rotation of the first bevel gear. When the second bevel gear rotates, the cutting fluid injection nozzle rotates about the central axis of the second bevel gear and the cutting fluid is injected in a predetermined direction around the central axis, When the hollow output shaft of the second motor is rotated, the entire cutting fluid injection nozzle is rotated around the central axis of the first bevel gear, and the cutting fluid is supplied in a predetermined direction around the central axis. It is characterized by being injected.

When the cutting fluid supply device according to claim 1 has such a configuration, it is possible to minimize the movement of the cutting fluid supply hose connecting the cutting fluid supply source and the cutting fluid supply passage of the cutting fluid supply device. it can. Thereby, the arrangement space between the cutting fluid supply device and the cutting fluid supply source can be made as small as possible.

Moreover, since it is not necessary to arrange | position a 1st motor and a 2nd motor on both sides of a cutting fluid injection nozzle, cutting fluid can be supplied also to the narrow site | part of the processing apparatus which is the target object which supplies cutting fluid.

Further, since the direction of the cutting fluid supply device equipped with switching Kezueki supply hose connection during operation of the cutting fluid supply device is facing a certain direction, cutting fluid supplying device a longer cutting fluid supply hose lengths and It is not necessary to provide between the cutting fluid supply sources, and it is possible to avoid the deterioration of the working environment due to such intense movement of the long cutting fluid supply hose in a wide space.

Moreover, the cutting fluid supply device according to claim 2 of the present invention is the cutting fluid supply device according to claim 1,
The base part is composed of an elongated plate-like base plate,
The first motor is fixed to the base plate via a first support member,
The second motor is fixed to the base plate via a second support member,
The housing includes a gear box that houses the first and second bevel gears, and is pivotally supported by the base plate via a third support member.
The flow path forming member includes a first flow path forming member, a second flow path forming member, and a third flow path forming member,
The first flow path forming member extends in the gear box so that a central axis thereof coincides with a central axis of the first bevel gear, and is provided in the gear box. A cutting fluid inflow through hole for allowing the cutting fluid to flow into the second flow path forming member is formed at the tip of the forming member,
The second flow path forming member is provided in the gear box so that a central axis thereof coincides with a central axis of the second bevel gear, and the second flow path forming member is disposed on the proximal end side of the second flow path forming member. A distal end portion of the first flow path forming member is inserted, and the second flow path forming member is arranged around the central axis of the first bevel gear on the base end side. Can be rotated integrally with the gear box,
The third flow path forming member is attached so as to rotate together with the second bevel gear together with the cutting fluid injection nozzle, and a base end portion thereof is a distal end portion of the second flow path forming member. And its tip is connected to the cutting fluid injection nozzle,
Between the base end side of the second flow path forming member and the front end side of the first flow path forming member is sealed so that the cutting fluid does not leak outside,
Between the base end side of the third flow path forming member and the front end side of the second flow path forming member is sealed so that the cutting fluid does not leak to the outside,
The cutting fluid is prevented from leaking to the outside between the distal end portion side of the third flow path forming member and the proximal end portion side of the cutting fluid injection nozzle.

  Since the cutting fluid supply apparatus according to the second aspect has such a configuration, the operation of the first aspect can be reliably generated with a simple structure and at a low cost.

According to the present invention, the space for moving the cutting fluid supply hose connected to the cutting fluid supply device during operation of the cutting fluid supply device is reduced as much as possible, and the structure near the cutting fluid injection nozzle is simplified to make a narrower part of the machine tool. Moreover, the cutting fluid supply apparatus which can supply a cutting fluid reliably can be provided.

It is a perspective view which shows the cutting fluid supply apparatus which concerns on one Embodiment of this invention. It is a side view of the cutting fluid supply apparatus shown in FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 2. FIG. 4 is a cross-sectional view showing a 90 ° rotation around a motor output axis relative to the cross-sectional view in FIG. 3. FIG. 4 is an enlarged cross-sectional view of a gear box and a cutting fluid supply channel portion in FIG. 3. FIG. 5 is an enlarged cross-sectional view of a gear box and a cutting fluid supply channel portion in FIG. 4. FIG. 7 is a sectional view taken along the line VII-VII in FIG. 2 (FIG. 7A) and a sectional view taken along the line VIII-VIII (FIG. 7B). It is IX-IX sectional drawing in FIG. It is a disassembled side view corresponding to FIG. 2 of the cutting fluid supply apparatus shown in FIG. It is explanatory drawing of the cutting fluid injection apparatus relevant to this invention.

  Hereinafter, a cutting fluid supply apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a cutting fluid supply apparatus 1 according to an embodiment of the present invention. FIG. 2 is a side view of the cutting fluid supply apparatus 1 shown in FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a cross-sectional view rotated 90 ° around the motor output axis with respect to the cross-sectional view shown in FIG. FIG. 5 is an enlarged cross-sectional view of the gear box 300 and the cutting fluid supply channel 400 in FIG. FIG. 6 is an enlarged cross-sectional view of the gear box 300 and the cutting fluid supply channel 400 in FIG. FIG. 7A is a sectional view taken along line VII-VII in FIG. Moreover, FIG.7 (b) is VIII-VIII sectional drawing in FIG. 8 is a cross-sectional view taken along the line IX-IX in FIG. The arrow R in the figure indicates the flow of the cutting fluid.

  A cutting fluid supply device 1 according to an embodiment of the present invention is a device that supplies cutting fluid or coolant fluid (hereinafter collectively referred to as “cutting fluid”) to a workpiece or tool of a machine tool, and has a sufficient thickness. A base plate (base portion) 100 made of an elongated rectangular metal plate and having an installation surface for a machine tool, and a first motor 210 attached to the base plate 100 via a first support member 110. (200) is attached to the base plate 100 via the second support member 120, and the first motor 210 is attached to the base plate 100 so that the rotation center axis coincides with the rotation center axis of the first motor 210. And a second motor 220 (200) attached side by side in the longitudinal direction of the base plate 100, and a gear box (housing) 30 attached to the base plate 100 via a third support member 130. The has. The gear box 300 is attached to the third support member 130 so as to be rotatable in the longitudinal direction of the base plate 100. The rotation center axis of the gear box 300 matches the rotation center axis of the first motor 210 and the second motor 220. The gear box 300 is located on the opposite side of the first motor 210 across the second motor 220 in the longitudinal direction of the base plate 100, and includes a cutting fluid supply channel 400 (see FIGS. 3 to 7A) and A cutting fluid injection nozzle 500 is provided. A gear box cover 301 is provided on the support member 130 side of the gear box 300. The gear box cover 301 rotates together with the hollow output shaft 221 of the second motor 220.

  The base plate 100 has base plate mounting holes 105 for mounting the base plate 100 to a cutting device (not shown) at predetermined positions, and the base plate mounting holes 105 on both sides in the longitudinal direction of the base plate 100. A support member mounting hole 101 for supporting the first motor is formed at one end portion in the longitudinal direction of the base plate 100 so as to be sandwiched between the two, and a support member for supporting the second motor is formed in the longitudinal center portion of the base plate 100. A mounting hole 102 is formed, and a supporting member mounting hole 103 for mounting a supporting member 130 that rotatably supports the gear box 300 is formed at the other end in the longitudinal direction.

  Then, the first motor 210 and the second motor 220 are firmly fixed to the base plate 100 with the hexagon socket bolt 109 via the first support member 110 and the second support member 120, and the cutting fluid is supplied. The gear box 300 provided with the flow path 400 and the cutting fluid injection nozzle 500 can be rotated within a predetermined angle range around the output shaft of the first motor 210 by the hexagon socket head bolt 109 via the third support member 130. It is being fixed to the base board 100 so that it may become. The base plate 100 can be firmly fixed to the cutting apparatus with fasteners such as bolts (not shown) through attachment holes 105 formed at the four corners thereof.

  The first motor 210 is a stepping motor, and the motor output shaft 211 projects toward the adjacent second motor 220 as shown in FIGS. 3 and 4. The second motor 220 is a stepping motor, has a hollow output shaft 221 that transmits the output of the second motor 220, and an output that transmits the output of the first motor 210 through the hollow output shaft 221. A transmission shaft 225 is provided. The tip of the motor output shaft 211 of the first motor 210 is provided with a key 211a, and the end of the output transmission shaft 225 of the first motor 210 inserted through the hollow output shaft 221 of the second motor 220. A key groove 225a corresponding to the key 211a described above is formed (see FIGS. 3 and 4).

  As a result, the rotational force of the output shaft 211 of the first motor 210 can be transmitted to the output transmission shaft 225 as rotational torque after the cutting fluid supply device 1 is assembled. In the present embodiment, the output transmission shaft 225 is made of metal, and a solid structure shaft is used. The hollow output shaft 221 is made of metal, and the inner diameter of the hollow output shaft 221 is slightly larger than the outer diameter of the output transmission shaft 225. When relative rotation occurs between the hollow output shaft 221 and the output transmission shaft 225, one output shaft does not hinder the rotation of the other output shaft.

  The gear box 300 that is biased and arranged on one side in the longitudinal direction of the base plate 100 is made of metal, the second motor 220 side is closed by the gear box cover 301, and each gear box 300 is made of metal. A pair of bevel gears are housed. The pair of bevel gears has a first bevel gear 310 pivotally supported in the gear box 300, a rotation center axis perpendicular to the rotation center axis of the first bevel gear 310, and a gear. A second bevel gear 320 is rotatably supported in the box 300. In the present embodiment, the first bell gear 310 and the second bevel gear 320 have the same module and the same number of teeth.

  Further, the cutting fluid supply channel 400 accommodated and arranged in a predetermined path in the gear box 300, and the tip portion protrudes outside the gear box 300 and is connected to the cutting fluid supply channel 400 in a desired direction. Is provided with a cutting fluid injection nozzle 500 that enables the injection of.

  The cutting fluid supply flow path 400 is made of metal, and as shown in FIGS. 5 to 7A, a first flow path forming member 410 having a cylindrical shape, made of metal, having a cylindrical shape, and a longitudinal shape. A second flow path forming member 420 having a bulging portion 425 (see FIGS. 5 and 7A) having a circular cross section at the center in the direction, and a third flow path forming made of metal and having a cylindrical shape A member 430 is provided.

  The first flow path forming member 410 extends into the gear box 300 in a state in which the central axis thereof coincides with the central axial line of the first bevel gear 310 and the base end thereof is fixed to the third support member 130. Exist. A proximal end portion of the first flow path forming member 410 is connected to a cutting fluid supply hose connection portion 450 protruding to the opposite side of the third support member 130.

  The second flow path forming member 420 has a central axis that matches the central axis of the second bevel gear 320, is fixed in the gear box 300, and the second flow path forming member 420 has a circular bulge in cross section. The tip of the first flow path forming member 410 is inserted into the part 425. The distal end portion of the first flow path forming member 410 and the proximal end portion of the second flow path forming member 420 are sealed. Further, the bulging portion 425 of the second flow path forming member 420 is positioned so as to surround the four through holes 411 formed in the first flow path forming member 410, and the gap between them is cut. A liquid movement space 421 is formed.

  The third flow path forming member 430 is integrally attached to the second bevel gear 320 and is rotatably attached to the gear box 300, and the base end portion is connected to the second flow path forming member 420. In addition, the tip is connected to the cutting fluid injection nozzle 500.

  The second flow path forming member 420 rotates around the central axis of the first bevel gear 310 located on the proximal end side thereof and rotates around the first flow path forming member 410 in conjunction with the gear box 300. It is possible to move.

  The first O-ring 621 (see FIG. 5) prevents the cutting fluid from leaking to the outside between the distal end side of the first flow path forming member 410 and the proximal end side of the second flow path forming member 420. ).

  The third flow path forming member 430 rotates together with the cutting fluid injection nozzle 500 in accordance with the rotation of the second bevel gear 320. Further, the second O-ring 622 (FIG. 7A) prevents the cutting fluid from leaking to the outside between the base end portion of the third flow path forming member 430 and the front end portion of the second flow path forming member 420. ))). Further, the cutting fluid does not leak to the outside through a fastening structure with screws between the distal end portion side of the third flow path forming member 430 and the proximal end portion side of the cutting fluid injection nozzle 500.

  The first support member 110 includes a bearing 611 that rotatably supports the output shaft 211 of the first motor 210. Further, the second support member 120 is provided with a bearing 612 that pivotally supports the output shaft 221 of the second motor 220. Further, a bearing 613 is interposed between the gear box cover 301 and the output transmission shaft 225 to enable relative rotation of both. Further, a bearing 614 is interposed between the gear box 300 and the first flow path forming member 410 to enable relative rotation of both. Further, a bearing 615 is interposed between the gear box 300 and the third flow path forming member 430 to enable relative rotation of both.

  The cutting fluid injection nozzle 500 is made of metal, and as shown in FIG. 7A, a cylindrical nozzle base end portion 510 having a female screw on the base end side and a male screw on the base end side and having a male screw on the front end side. It comprises a nozzle tip 520 that injects a cutting fluid in a predetermined direction with respect to the center axis of the nozzle base end 510 at a predetermined angle (90 degrees in this embodiment) with the center axis of the nozzle base end 510. Then, the central axis of the nozzle base end 510 coincides with the central axis of the second bevel gear 320, and around the central axis from the nozzle tip 520 of the cutting fluid ejection nozzle 500 according to the rotation of the second bevel gear 320. The cutting fluid is sprayed in a desired direction.

  Specifically, when only the second motor 220 rotates, the hollow output shaft 221 of the second motor 220 is in a state where the first bevel gear 310 and the second bevel gear 320 do not rotate relative to each other. Further, the cutting fluid injection nozzle 500 itself integrated with the gear box 300 is rotated together with the entire gear box 300 around the central axis of the first bevel gear 310.

  On the other hand, when only the first motor 210 rotates, the output transmission shaft 225 connected to the output shaft of the first motor 210 rotates integrally, and the first bevel gear 310 rotates accordingly. At the same time, the second bevel gear 320 meshed with the first bevel gear 310 is rotated according to the rotation of the first bevel gear 310. Accordingly, the central axis of the cutting fluid ejection nozzle 500 rotates around the central axis of the second bevel gear 320, and the direction of the nozzle tip 520 of the cutting fluid ejection nozzle 500 is around the central axis of the second bevel gear 320. It is designed to rotate within a predetermined angle range. In addition, when the 1st motor 210 and the 2nd motor 220 rotate simultaneously, the cutting fluid injection nozzle 500 performs the two rotation operation | movement mentioned above in combination.

  Then, the assembly | attachment procedure of the cutting fluid supply apparatus 1 which concerns on one Embodiment of this invention is demonstrated. FIG. 9 is an exploded side view corresponding to FIG. 2 of the cutting fluid supply apparatus 1 shown in FIG.

  In assembling the cutting fluid supply device 1 according to an embodiment of the present invention, first, the base plate 100, the first motor 210, the second motor 220, and the gear box 300 are prepared. In the present embodiment, the first support member 110 is attached in advance to the first motor 210, and the second support member 120, the gear box cover 301, and the first bevel gear 310 are attached to the second motor 220 in advance. Install it. A second bevel gear 320 is attached to the gear box 300 in advance, and the third support member 130, the first to third flow path forming members 410, 420, 430, the cutting fluid injection nozzle 500, the cutting fluid, and the like. The supply hose connection part 450 is attached.

Next, the output transmission shaft 225 of the first motor 210 is inserted through the hollow output shaft 221 of the second motor 220 (see FIG. 9). Then, one end of the output transmission shaft 225 of the first motor 210 is connected to the output shaft 211 of the first motor 210 and the other end of the output transmission shaft 225 of the first motor 210 is connected to the first bevel gear 310. To do. The same time the end of the hollow output shaft 22 1 of the second motor 220, coupled to gearbox 300 via a gear box cover 301. Then, the first motor 210, the second motor 220, and the gear box 300 are attached to the base plate 100 with the hexagon socket bolt 109 via the first to third support members 110, 120, 130, and the cutting fluid is supplied. The assembly work of the device 1 is completed.

In the cutting and feeding apparatus 1 assembled in this way, the first bevel gear 310 rotates in accordance with the rotation of the output transmission shaft 225 connected to the output shaft 211 of the first motor 210, and the first In response to the rotation of the bevel gear 310, the second bevel gear 320 engaged therewith rotates. As a result, the central axis of the cutting fluid injection nozzle 500 rotates around the central axis of the second bevel gear 320, and the direction of the nozzle tip 520 of the cutting fluid injection nozzle 500 is around the central axis of the second bevel gear 320. In a predetermined angle range. When only the second motor 220 rotates, the output shaft of the first motor 210, that is, the first bevel gear 310 and the second bevel gear 320 do not rotate relative to each other. The cutting fluid injection nozzle 500 itself rotates together with the entire gear box 300 around the central axis of the bevel gear 310. In the case where the first motor 210 and the second motor 220 is rotated at the same time, cutting Eki噴 morphism nozzle 500 is adapted to perform a rotation that combines two turning operation described above.

  Hereinafter, the flow of the cutting fluid (see arrow R in the figure) in the cutting fluid supply apparatus 1 according to the above-described embodiment will be described. The cutting fluid indicated by the arrow R in the figure flows into the first flow path forming member 410 via the cutting fluid supply hose connection portion 450 connected to the cutting fluid supply hose. Then, it flows into the cutting fluid movement space 421 of the second flow path forming member 420 fixed to the gear box 300 through the plurality of through holes 411 formed on the front end side of the first flow path forming member 410. At this time, the cutting fluid flows from the first flow path forming member 410 to the second flow path forming member 420 without leaking to the outside by the first O-ring 621 (see FIG. 5). In the present embodiment, the number of through holes is four, but it is needless to say that the number is not limited to this number.

Then, the cutting fluid flows from the second flow path forming member 420 into the third flow path forming member 430 that can rotate relative to the gear box 300. At this time, the cutting fluid supply liquid flows from the second flow path forming member 420 to the third flow path forming member 430 without leaking to the outside by the second O-ring (see FIG. 7A). Then, the cutting fluid is ejected from the third flow path forming member 430 to the processing portion from the distal end portion 520 of the cutting fluid ejection nozzle 500 via the proximal end portion 510 of the cutting fluid ejection nozzle 500. At this time, since the distal end side of the third flow path forming member 430 and the proximal end side of the cutting fluid injection nozzle 500 are screwed together, the cutting fluid does not leak from this portion.

  Simultaneously with the flow of the cutting fluid, the cutting fluid injection nozzle 500 operates as follows. When the cutting fluid supply device 1 is operated, the rotation of the output shaft 211 of the first motor 210 is transmitted to the output transmission shaft 225 inserted through the hollow output shaft 221 of the second motor 220, and this is rotated. The first bevel gear 310 fixed to the output transmission shaft 225 is rotated, the second bevel gear 320 engaged with the first bevel gear 310 is rotated, and the second bevel gear 320 is fixed. The third flow path forming member 430 rotates, the third flow path forming member 430 rotates the cutting fluid ejection nozzle 500, and the nozzle tip 520 performs the left-right operation in FIG.

  On the other hand, when the second motor 220 is rotated, the gear box cover fixed to the hollow output shaft 221 is rotated, and the gear box 300 integrated therewith is rotated to cut the cutting fluid injection nozzle. 500 is moved up and down in FIG. 1, and the nozzle tip 520 is also turned up and down accordingly.

  Note that when the rotational operation of the first motor 210 and the rotational operation of the second motor 220 are combined and operated, the cutting fluid can be sprayed in a desired direction as described above.

  According to the cutting fluid supply apparatus 1 according to the present embodiment described above, the movable range of the cutting fluid supply hose that connects the cutting fluid supply channel 400 and the cutting fluid supply tank of the cutting fluid supply device 1 (the area in which the cutting fluid supply hose moves). Can be minimized. Thereby, the arrangement space of the cutting fluid supply device 1 and the cutting fluid supply tank can be reduced as much as possible, and the entire cutting device can be reduced in size.

  Moreover, since it is not necessary to arrange the first motor 210 and the second motor 220 on both sides of the cutting fluid injection nozzle 500, it is possible to supply the cutting fluid to a narrow part of the processing apparatus that is an object to which the cutting fluid is supplied. .

  Further, since the direction of the cutting fluid supply hose connection part 450 of the cutting fluid supply device 1 is in a certain direction during the operation of the cutting fluid supply device 1, a long cutting fluid supply hose is used as the cutting fluid supply device 1. And the cutting fluid supply tank need not be provided, and the deterioration of the working environment due to the movement of the cutting fluid supply hose having such a long length in a wide space can be avoided.

  In addition, the motor used by this invention is not limited to a stepping motor like the above-mentioned embodiment, Various motors, such as a (brush, brushless) DC motor, can be used.

  In addition, the first support member 110 and the second support member 120 are not necessarily required in the present invention, and the motor itself has a mounting base, and the center axis of the output shaft of each motor and the rotation of the housing by a spacer or the like. You may adjust so that a dynamic center axis line may correspond.

  In addition, the shape, dimensions, numerical values, and materials of each component introduced in the above-described embodiment are merely exemplary, and various shapes, dimensions, numerical values, and materials can be selected as appropriate without departing from the scope of the present invention. Needless to say. Specifically, in the above-described embodiment, the base plate, the support member, the gear box, and the bevel gear are made of metal. However, the material is not necessarily limited to metal as long as the function of the present invention can be achieved. Alternatively, other materials such as a resin excellent in strength and moldability may be used. Further, the number of mounting holes formed in the base plate and the number of flow path holes formed in the first flow path forming member is not limited to the number of the present embodiment.

  Further, in the present embodiment, the cutting fluid is sprayed from the tip of the cutting fluid spray nozzle to the workpiece or tool of the machine tool, but is not necessarily limited to such a cutting fluid. Cutting oil, polishing liquid, cooling liquid (coolant liquid), or cooling oil (coolant oil) may be supplied to the workpiece or tool of the machine tool from the nozzle tip of the coolant nozzle. That is, in this embodiment, the cutting fluid is sprayed from the nozzle tip to the tool or workpiece. However, the grinding fluid may be supplied to the tool or workpiece differently.

1 Cutting fluid supply device 100 Base plate (base part)
DESCRIPTION OF SYMBOLS 110 1st support member 120 2nd support member 130 3rd support member 210 (200) 1st motor 211 Motor output shaft 220 (200) 2nd motor 221 Hollow output shaft 225 Output transmission shaft 300 Gearbox ( housing)
301 gear box cover 310 first bevel gear 320 second bevel gear 400 cutting fluid supply channel 410 first channel forming member 411 through hole 420 second channel forming member 421 cutting fluid moving space 430 third Flow path forming member 450 Cutting fluid supply hose connection portion 500 Cutting fluid injection nozzle 510 Nozzle base end portion 520 Nozzle tip portion 611, 612, 613, 614, 615 Bearing

Claims (2)

In a cutting fluid supply device that supplies cutting fluid and coolant fluid to workpieces and tools of machine tools,
A base portion having an installation surface for a machine tool; a first motor attached to the base portion;
A second motor attached to the base portion alongside the first motor such that a rotation center axis line coincides with a rotation center axis line of the first motor;
A housing attached to the base portion and having a bevel gear inside;
A flow path forming member that is attached to a bevel gear provided in the housing and that enables cutting fluid flowing from a cutting fluid supply hose connected to the housing to be sprayed in a desired direction, and a cutting fluid spray nozzle are provided.
The second motor includes a hollow output shaft that transmits the output of the second motor, and includes an output transmission shaft that passes through the hollow output shaft and transmits the output of the first motor.
The bevel gear is pivotally supported in the housing and has a first bevel gear whose axis coincides with the output shaft of the first motor, and an output shaft orthogonal to the output shaft of the first bevel gear. And a second bevel gear pivotally supported in the housing in a state of meshing with the first bevel gear,
A part of the flow path forming member is formed so that a central axis thereof corresponds to a central axis of the first bevel gear, and a remaining part of the flow path forming member has a central axis of the first bevel gear. Formed to correspond to the central axis of the second bevel gear,
The first bevel gear rotates according to the rotation of the output transmission shaft connected to the output shaft of the first motor, and meshes with the first bevel gear according to the rotation of the first bevel gear. When the second bevel gear rotates, the cutting fluid injection nozzle rotates about the central axis of the second bevel gear and the cutting fluid is injected in a predetermined direction around the central axis, When the hollow output shaft of the second motor is rotated, the entire cutting fluid injection nozzle is rotated around the central axis of the first bevel gear, and the cutting fluid is supplied in a predetermined direction around the central axis. A cutting fluid supply device which is jetted. The base part is composed of an elongated plate-like base plate,
The first motor is fixed to the base plate via a first support member,
The second motor is fixed to the base plate via a second support member,
The housing includes a gear box that houses the first and second bevel gears, and is pivotally supported by the base plate via a third support member.
The flow path forming member includes a first flow path forming member, a second flow path forming member, and a third flow path forming member,
The first flow path forming member extends in the gear box so that a central axis thereof coincides with a central axis of the first bevel gear, and is provided in the gear box. A cutting fluid inflow through hole for allowing the cutting fluid to flow into the second flow path forming member is formed at the tip of the forming member,
The second flow path forming member is provided in the gear box so that a central axis thereof coincides with a central axis of the second bevel gear, and the second flow path forming member is disposed on the proximal end side of the second flow path forming member. A distal end portion of the first flow path forming member is inserted, and the second flow path forming member is arranged around the central axis of the first bevel gear on the base end side. Can be rotated integrally with the gear box,
The third flow path forming member is attached so as to rotate together with the second bevel gear together with the cutting fluid injection nozzle, and a base end portion thereof is a distal end portion of the second flow path forming member. And its tip is connected to the cutting fluid injection nozzle,
Between the base end side of the second flow path forming member and the front end side of the first flow path forming member is sealed so that the cutting fluid does not leak outside,
Between the base end side of the third flow path forming member and the front end side of the second flow path forming member is sealed so that the cutting fluid does not leak to the outside,
The cutting fluid does not leak to the outside between a distal end portion side of the third flow path forming member and a proximal end portion side of the cutting fluid injection nozzle . Cutting fluid supply device.

Images