JP2010253574A - Device and nozzle of supplying grinding liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grinding liquid supply device more surely supplying a grinding liquid to a grinding point without being affected by an air stream flowing around by rotation of a grind stone while suppressing an installation cost, and also to provide a grinding liquid supply nozzle. <P>SOLUTION: The grinding liquid supply device 100 is provided in a grinder employing the grind stone 30 having a circumferential surface 32 formed for grinding a workpiece by turning at a high speed and supplies the grinding liquid to the grinding point P of the material to be machined. The grinding liquid supply device 100 is equipped with: a supply pipe 110 in which the grinding liquid is supplied; and a discharge nozzle 120 coupled with the supply pipe 110 for discharging the grinding liquid therefrom. The discharge nozzle 120 has: a block wall 122 provided adjacently to the circumferential surface 32 of the grind stone 30 for blocking the air stream flowing around by the rotation of the grind stone 30; and an outlet port 124 provided closer from the block wall 122 to the rotation direction R of the grind stone 30 for discharging the grinding liquid toward the circumferential surface 32 of the grind stone 30. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention is provided in a grinding machine using a grinding wheel having an outer peripheral surface for grinding a workpiece by rotating at a high speed, and supplying a grinding fluid toward a grinding point of the workpiece The present invention relates to a supply device and a grinding fluid supply nozzle.

  In general, a grinding machine using a grinding wheel for grinding a workpiece is provided with a grinding fluid supply device that supplies a grinding fluid toward an outer peripheral surface of the grinding wheel, that is, toward a grinding point.

  Since the grinding wheel rotates at a high speed, an air flow that is rotated along with the rotation of the grinding wheel is formed on the outer peripheral surface of the grinding wheel. For this reason, there arises a problem that the grinding fluid does not reach the grinding point due to the air flow. Therefore, there is known a grinding fluid supply device in which a blocking plate for blocking the air flow is provided so as to be adjacent to the outer peripheral surface of the grinding wheel, and a discharge nozzle for the grinding fluid is provided closer to the rotation direction of the grinding wheel than the blocking plate. (For example, Patent Document 1).

JP 62-43834 A (2nd page, Fig. 4)

  However, the above-described conventional grinding fluid supply apparatus has the following problems. That is, in order to provide a blocking plate in accordance with the shape and structure of the grinding machine, a precise design and installation work is required for each grinding machine, and there is a problem that the installation cost is increased.

  Therefore, the present invention provides a grinding fluid supply device capable of more reliably supplying the grinding fluid toward the grinding point without being affected by the air flow that is rotated along with the rotation of the grinding wheel while suppressing the installation cost. The purpose is to provide a grinding fluid supply nozzle.

  In order to solve the above-described problems, the present invention has the following features. First, the first feature of the present invention is that a grinding wheel (grinding wheel 30) on which a circumferential surface (circumferential surface 32) for grinding a workpiece (workpiece 20) is formed by rotating at a high speed. A grinding liquid supply apparatus (grinding liquid supply apparatus 100) that is provided in the used grinding machine (grinding machine 10) and supplies a grinding liquid toward a grinding point (grinding point P) of a workpiece, The liquid supply apparatus includes a supply pipe (supply pipe 110) to which a grinding liquid is supplied, and a discharge nozzle (for example, discharge nozzle 120) that is connected to the supply pipe and discharges the grinding liquid. A blocking wall portion (for example, blocking wall portion 122) that is provided adjacent to the circumferential surface of the grindstone and blocks the air flow that is accompanied by the rotation of the grinding wheel, and the rotation of the grinding wheel from the blocking wall portion. Direction (rotation direction R) and close to the circumferential surface of the grinding wheel Discharge port portion for discharging the grinding fluid Te (e.g., discharge port portion 124) to increase the and a.

  According to this feature, the discharge nozzle of the grinding fluid supply apparatus includes the blocking wall portion and the discharge port portion. The blocking wall portion can block the air flow that is rotated along with the rotation of the grinding wheel. As a result, the discharge port is provided closer to the rotation direction of the grinding wheel than the blocking wall, so that the circumferential surface of the grinding wheel is not affected by the air flow that is accompanied by the rotation of the grinding wheel. Grinding fluid can be discharged toward

  In other words, since the discharge nozzle is equipped with a blocking wall instead of the blocking plate that has been provided according to the shape and structure of the grinding machine, a precise design and installation work for each grinding machine becomes unnecessary. The position of the blocking wall is also adjusted only by adjusting the position of the discharge nozzle.

  Therefore, it is possible to provide a grinding fluid supply apparatus that can more reliably supply the grinding fluid toward the grinding point without being affected by the air flow that is rotated along with the rotation of the grinding wheel while suppressing the installation cost.

A second feature of the present invention relates to the first feature of the present invention, wherein the blocking wall portion is flat.
The gist is that the blocking wall extends along the radial direction (radial direction D) of the grinding wheel and the axial direction (axial direction t) of the grinding wheel.

  The third feature of the present invention uses a grinding wheel (grinding wheel 30) on which a circumferential surface (circumferential surface 32) for grinding a workpiece (workpiece 20) by rotating at high speed is formed. A grinding liquid supply nozzle (grinding liquid supply nozzle 120a), which is provided in a grinding machine, is supplied with a grinding liquid, and is discharged toward a grinding point of a workpiece. A blocking wall portion (blocking wall portion 122a) that is provided adjacent to the circumferential surface of the grindstone and blocks airflow that is accompanied by rotation of the grinding wheel, and closer to the rotation direction of the grinding wheel than the blocking wall portion And a discharge port portion (discharge port portion 124a) for discharging the grinding liquid toward the circumferential surface (circumferential surface 32) of the grinding wheel.

  According to the features of the present invention, the grinding fluid supply that can more reliably supply the grinding fluid toward the grinding point without being affected by the air flow that is accompanied by the rotation of the grinding wheel while suppressing the installation cost. An apparatus and a grinding fluid supply nozzle can be provided.

1 is a schematic perspective view of a grinding machine according to an embodiment of the present invention. It is an axial direction view of the grinding wheel in the grinding fluid supply apparatus concerning the embodiment of the present invention. It is a partial exploded front view of the grinding fluid supply device concerning the embodiment of the present invention. It is a perspective view of the grinding fluid supply apparatus concerning the embodiment of the present invention. It is a figure which shows the discharge nozzle from the grinding stone side about the discharge nozzle which concerns on embodiment of this invention. It is AA sectional drawing of the discharge nozzle shown in FIG. 5 about the discharge nozzle which concerns on embodiment of this invention. It is a B direction arrow line view of the discharge nozzle shown in FIG. 5 about the discharge nozzle which concerns on embodiment of this invention. The grinding fluid supply apparatus which concerns on other embodiment of this invention WHEREIN: The axial direction view of a grinding wheel is shown. (A), (b) In the grinding-fluid supply apparatus which concerns on other embodiment of this invention, the axial direction view of a grinding stone is shown. (C) It is a perspective view of the grinding fluid supply apparatus which concerns on other embodiment of this invention.

  Next, an embodiment of a grinding fluid supply apparatus according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

  A grinding machine according to the present invention will be described. Specifically, (1) Configuration of grinding machine, (2) Detailed configuration of grinding fluid supply device, (3) Detailed configuration of discharge nozzle, (4) Action and effect, and (5) Other embodiments will be described. To do.

(1) Configuration of Grinding Machine FIG. 1 is a schematic perspective view of a grinding machine according to an embodiment of the present invention. As shown in FIG. 1, the grinding machine 10 according to the present embodiment functions as a surface grinder. The grinding machine 10 uses a grinding wheel 30 on which a circumferential surface 32 for grinding the workpiece 20 is formed by rotating at a high speed. The grinding machine 10 includes a grinding fluid supply device 100 that supplies a grinding fluid toward the grinding point P of the workpiece 20. Further, the grinding machine 10 includes a grinding wheel 30, a blade 22 that supports the workpiece 20, a blade 22, and a bed 24 that supports the grinding wheel 30. The grinding wheel 30 has a predetermined thickness along the axial direction t, and rotates along the rotation direction R. The workpiece 20 is ground by the grinding wheel 30 at the grinding point P.

(2) Detailed Configuration of Grinding Fluid Supply Device FIG. 2 is a partially exploded front view of the grinding fluid supply device according to the embodiment of the present invention. As shown in FIG. 2, the grinding liquid supply apparatus 100 includes a supply pipe 110 to which a grinding liquid is supplied, and a discharge nozzle 120 that is connected to the tip of the supply pipe 110 and discharges the grinding liquid. The discharge nozzle 120 is formed in a hollow shape, and is connected to the supply pipe 110 by covering the supply port at the tip of the supply pipe 110. Since the discharge nozzle 120 is made of plastic such as acetal or polyester, the discharge nozzle 120 is elastically deformed when covering the supply pipe 110 and is easily fixed to the supply pipe 110. Moreover, the supply pipe | tube 110 is comprised with the coolant hose and can change the arrangement | positioning with respect to the circumferential surface 32 of the grinding stone 30 freely by changing the shape of a coolant hose.

(3) Detailed Configuration of Discharge Nozzle The discharge nozzle 120 will be further described with reference to FIGS. FIG. 3 is an axial view of the grinding wheel in the grinding fluid supply apparatus according to the embodiment of the present invention. FIG. 4 is a perspective view of the grinding fluid supply apparatus according to the embodiment of the present invention. FIG. 5 is a diagram showing a radial view of the grinding wheel of the discharge nozzle according to the embodiment of the present invention. In particular, FIG. 5 is a diagram showing a discharge nozzle from the grinding wheel side of the discharge nozzle according to the embodiment of the present invention. 6 is a cross-sectional view of the discharge nozzle according to the embodiment of the present invention, taken along line AA of FIG. FIG. 7 is a view in the direction of the arrow B of the discharge nozzle shown in FIG. 5 for the discharge nozzle according to the embodiment of the present invention.

  As shown in FIG. 3, the grinding fluid supply device 100 extends toward the grinding point P of the workpiece. The discharge nozzle 120 is provided adjacent to the circumferential surface 32 of the grinding wheel 30 by changing the shape of the supply pipe 110, and a blocking wall portion that blocks the air flow that is accompanied by the rotation of the grinding wheel 30. 122, and a discharge port portion 124 that is provided closer to the rotation direction R of the grinding wheel 30 than the blocking wall 122 and discharges the grinding liquid toward the circumferential surface 32 of the grinding wheel 30. The discharge port portion 124 is provided closer to the counter-rotation direction than the grinding point P of the workpiece 20, and discharges the grinding liquid toward the radial direction D of the grinding wheel 30.

  As shown in FIG. 4, the blocking wall 122 has a flat plate shape, and the blocking wall 122 extends along the radial direction D of the grinding wheel 30 and the axial direction t of the grinding wheel 30.

  The discharge nozzle 120 has a grinding fluid restricting portion 126 extending along the radial direction D of the grinding wheel 30 and the axial direction t of the grinding stone 30, and the grinding fluid restricting portion 126 is closer to the rotation direction than the blocking wall portion 122. Provided. The grinding fluid regulating unit 126 supplies the grinding fluid supplied along the rotation direction R along the radial direction D of the grinding wheel 30 via the supply pipe 110.

  As shown in FIG. 5, the discharge port portion 124 extends along the radial direction D of the grinding wheel 30 and the axial direction t of the grinding wheel 30. An opening 128 that opens toward the circumferential surface 32 of the grinding wheel 30 is formed in the discharge port portion 124.

  As shown in FIGS. 6 and 7, the end of the blocking wall 122 on the side of the grinding wheel 30 along the radial direction D of the grinding wheel 30 is closer to the circumferential surface 32 of the grinding wheel 30 than the discharge port portion 124.

(4) Action / Effect As described above, the discharge nozzle 120 of the grinding fluid supply apparatus 100 according to this embodiment includes the blocking wall portion 122 and the discharge port portion 124. The blocking wall part 122 can block the air flow that is rotated along with the rotation of the grinding wheel 30. Thereby, since the discharge port part 124 is provided closer to the rotation direction R of the grinding wheel 30 than the blocking wall part 122, the discharge port part 124 is ground without being affected by the air flow that is accompanied by the rotation of the grinding wheel 30. The grinding liquid can be discharged toward the circumferential surface 32 of the grindstone 30.

  In other words, since the discharge nozzle 120 includes the blocking wall 122 instead of the blocking plate conventionally provided in accordance with the shape and structure of the grinding machine, a precise design and installation work is not required for each grinding machine. Thus, only by adjusting the position of the discharge nozzle 120, the position of the blocking wall 122 is also adjusted.

  Therefore, there is provided a grinding fluid supply apparatus 100 that can more reliably supply the grinding fluid toward the grinding point P without being affected by the air flow that is accompanied by the rotation of the grinding stone 30 while suppressing the installation cost. it can.

  According to the present embodiment, the blocking wall portion 122 has a flat plate shape and extends along the radial direction of the grinding wheel 30 and the axial direction of the grinding wheel 30. For this reason, the blocking wall 122 can more effectively block the air flow that is rotated along with the rotation of the grinding wheel 30. Therefore, it is possible to supply the grinding liquid toward the grinding point P more reliably.

  According to the present embodiment, the discharge nozzle 120 has the grinding fluid restricting portion 126 extending along the radial direction D of the grinding wheel 30 and the axial direction t of the grinding stone 30, and the grinding fluid restricting portion 126 is a blocking wall portion. It is provided closer to the rotational direction R than 122. For this reason, the discharge nozzle 120 can reliably supply the grinding liquid along the radial direction D of the grinding wheel 30, and therefore can more reliably supply the grinding liquid toward the grinding point P.

  According to this embodiment, the discharge nozzle 120 is separate from the supply pipe 110 and covers the tip of the supply pipe 110. For this reason, the discharge nozzle 120 can be easily replaced. For example, discharge nozzles 120 having different shapes can be used depending on the application.

(5) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, the embodiment of the present invention can be modified as follows. The discharge nozzle 120 in the above-described embodiment is connected to the supply pipe 110, but is not limited to this. For example, as shown in FIG. 8, a grinding liquid supply nozzle 120a in which the discharge nozzle and the supply pipe are integrated. It may be. FIG. 8 shows an axial view of a grinding wheel in a grinding fluid supply apparatus according to another embodiment of the present invention.

  Specifically, the grinding liquid supply nozzle 120a is provided in the grinding machine 10 using the grinding wheel 30 on which the circumferential surface 32 that grinds the workpiece 20 by rotating at high speed is formed. The grinding fluid is supplied to the grinding fluid supply nozzle 120 a and is discharged toward the grinding point P of the workpiece 20. The grinding liquid supply nozzle 120 a is provided adjacent to the circumferential surface 32 of the grinding wheel 30, and includes a blocking wall portion 122 a that blocks an air flow that is accompanied by the rotation of the grinding wheel 30, and the blocking wall portion 122 a. Is also provided near the rotation direction R of the grinding wheel 30, and has a discharge port portion 124 a that discharges the grinding liquid toward the circumferential surface 32 of the grinding wheel 30.

  The blocking wall 122 in the above-described embodiment has a flat plate shape, and the blocking wall 122 extends along the radial direction D of the grinding wheel 30 and the axial direction t of the grinding wheel 30. The present invention is not limited to this, and the blocking wall portion is provided nearer to the counter-rotating direction of the grinding wheel than the discharge port portion, and is capable of blocking the air flow that is rotated along with the rotation of the grinding wheel. Good. For example, the shape shown in FIG. 9 may be used. FIGS. 9A and 9B show an axial view of a grinding wheel in a grinding fluid supply apparatus according to another embodiment of the present invention. FIG.9 (c) shows the perspective view of the grinding fluid supply apparatus which concerns on other embodiment of this invention.

  Specifically, as illustrated in FIG. 9A, the blocking wall portion 122 b may have a shape in which a part of the discharge nozzle 120 b swells along the radial direction D of the grinding wheel 30. As shown in FIG. 9B, in the discharge nozzle 120c, the blocking wall portion 122c may be adjacent to the discharge port portion 124c continuously. Further, as shown in FIG. 9C, in the discharge nozzle 120d, the blocking wall portion 122d may be separated from the discharge port portion 124d. According to this, by using the blocking wall portion 122d having a different shape according to the rotation condition and shape of the grinding wheel 30, the discharge port portion 124d is under the optimum condition and is not affected by the air flow. Can be more reliably supplied toward the grinding point P.

  The supply pipe 110 in the above-described embodiment is configured by a coolant hose, but is not limited thereto, and may be configured by a supply pipe made of metal.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

P ... grinding point, D ... radial direction, R ... rotation direction, t ... axial direction, 10 ... grinding machine, 20 ... workpiece, 22 ... blade, 24 ... bed, 30 ... grinding wheel, 32 ... circumferential surface DESCRIPTION OF SYMBOLS 100 ... Grinding fluid supply apparatus, 110 ... Supply pipe, 120, 120b, 120c, 120d ... Discharge nozzle, 120a ... Grinding fluid supply nozzle, 122, 122a, 122b, 122c, 122d ... Shut-off wall part, 124, 124a, 124c 124d: Discharge port, 126 ... Grinding fluid regulating part, 128 ... Opening

Claims (3)

Grinding fluid supply device that is provided in a grinding machine using a grinding wheel on which a circumferential surface for grinding a workpiece by rotating at high speed is used, and that supplies a grinding fluid toward a grinding point of the workpiece Because
The grinding fluid supply device comprises:
A supply pipe to which the grinding fluid is supplied;
A discharge nozzle connected to the supply pipe and discharging the grinding liquid;
The discharge nozzle is
A blocking wall that is provided adjacent to the circumferential surface of the grinding wheel and blocks an air flow that is accompanied by rotation of the grinding wheel;
A grinding fluid supply apparatus comprising: a discharge port portion that is provided closer to a rotation direction of the grinding wheel than the blocking wall portion and discharges the grinding fluid toward a circumferential surface of the grinding wheel. The blocking wall has a flat plate shape,
The grinding liquid supply device according to claim 1, wherein the blocking wall portion extends along a radial direction of the grinding wheel and an axial direction of the grinding wheel. It is equipped with a grinding machine that uses a grinding wheel with an outer peripheral surface that grinds the workpiece by rotating at high speed, and the grinding fluid is supplied and discharged toward the grinding point of the workpiece. A grinding fluid supply nozzle,
The grinding fluid supply nozzle is
A blocking wall that is provided adjacent to the circumferential surface of the grinding wheel and blocks an air flow that is accompanied by rotation of the grinding wheel;
A grinding liquid supply nozzle that is provided closer to the rotation direction of the grinding wheel than the blocking wall and has a discharge port that discharges the grinding liquid toward a circumferential surface of the grinding wheel.

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