JP2009196067A - Cutting and grinding tool, cutting and grinding machine, and cutting and grinding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting and grinding tool capable of processing a workpiece with various removal stocks by one tool. <P>SOLUTION: The cutting and grinding tool has at least one cutting edge face 11 and one grinding wheel face 13, which are the surfaces of a cylindrical pillar and are lined in the axial direction of the cylindrical pillar. The cutting edge face 11 has a first cutting edge face with a first cutting edge and a second cutting edge face with a second cutting edge wherein the depth of the edge is shorter than that of the first cutting edge. The grinding wheel face 13 has a first grinding wheel face made of first abrasive grains, and a second grinding wheel face made of second abrasive grains smaller than those of the first abrasive grains. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cutting grinding tool, a cutting grinding apparatus, and a cutting grinding method.

Conventionally, in order to process a plurality of processed surfaces, there is an apparatus provided with a plurality of grindstones having a grinding degree corresponding to each processed surface (for example, Patent Documents 1 and 2).
JP 2006-15432 A JP 2007-196302 A

  However, these conventional techniques merely attach a plurality of cutting blades and grindstones to one apparatus in accordance with the shape of the surface to be processed and the required roughness. Therefore, as a tool, a cutting tool having a cutting blade and a grindstone are separately required.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cutting and grinding tool capable of machining different machining allowances with a single tool, a cutting and grinding apparatus using the cutting and grinding tool, and a cutting and grinding method.

  The cutting and grinding tool of the present invention for solving the above-described problems has a cylindrical surface and has at least one cutting blade surface and at least one grinding wheel surface aligned in the axial direction of the circular cylinder. Features.

  Moreover, the cutting grinding apparatus of the present invention for solving the above-mentioned problems is a cutting and grinding method comprising at least one cutting blade surface and at least one grinding wheel surface that are aligned on the surface of a cylinder in the axial direction of the cylinder. A tool, rotating means for attaching the cutting and grinding tool so that the cutting blade surface comes closer to the workpiece, and tool feeding means for advancing the cutting and grinding tool attached to the rotating means in the direction of the workpiece. It is characterized by having.

  Further, the cutting and grinding method of the present invention for solving the above problems is a cutting and grinding method comprising at least one cutting blade surface and at least one grinding wheel surface, which are the surface of a cylinder and aligned in the axial direction of the cylinder. A method of processing a workpiece using a tool, wherein the cutting and grinding tool is rotated, the workpiece is cut using the cutting blade surface, and then the cutting processing is performed using the grinding wheel surface. It is characterized by grinding the part which performed.

  According to the present invention, it is possible to perform machining according to the workpiece shape and required surface roughness with a single tool with a very simple configuration.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective view of a cutting and grinding tool according to Embodiment 1 to which the present invention is applied.

This cutting and grinding tool (hereinafter simply referred to as tool 1) has a cylindrical shape as shown in the figure. The tool surface is divided into two regions. One region is a cutting blade surface 11 having a cutting blade 12 for performing cutting. Another area is a grinding wheel surface 13 composed of an abrasive surface 14 for grinding. The cutting blade surface 11 and the grinding wheel surface 13 are provided side by side in the columnar upper axial direction of the tool 1. The cutting blade surface 11 and the grinding wheel surface 13 are provided on the entire surface in the circumferential direction, and are used by rotating around the axis of a cylinder during processing.

  The cutting allowance of the cutting blade surface 11 and the grinding wheel surface 13 is larger than the grinding wheel surface 13 on which the cutting blade surface 11 that performs cutting with the cutting blade 14 performs grinding with the abrasive surface 14.

  Thus, by having the cutting blade surface 11 and the grinding wheel surface 13 in one tool 1, two different machining allowances can be processed.

  FIG. 2 is a drawing for explaining an example of machining using the tool 1. FIG. 3 is a schematic view of the cutting and grinding apparatus using the tool 1 as viewed from the front, and FIG. 4 is a schematic view of the cutting and grinding apparatus as viewed from the side.

  In this processing example, the R-shaped portion 105 (concave portion) of the cam which is the workpiece 101 (or 102) is processed. For example, as shown in FIGS. 3 and 4, the cutting and grinding apparatus 100 for performing this processing includes two workpiece fixing jigs 111 and 112 so that the two workpieces 101 and 102 can be processed simultaneously. The workpieces 101 and 102 are fixed to the workpiece fixing jigs 111 and 112, respectively, and pressed from above and below by the clamp mechanism 113 so that the R-shaped portions 105 face each other.

  The tool 1 is attached to a rotating mechanism 120 (rotating means) including a motor 121 and rotates around the axis of the tool 1. The rotating mechanism 120 is mounted on a slider 125 (tool feeding means), and is movable in a direction (arrow shown) close to and away from the workpieces 101 and 102 by a slider motor (not shown). . The tool 1 is attached to a tool attachment portion (not shown) of the rotating mechanism 120 so that the cutting blade surface 11 comes closer to the workpieces 101 and 102.

  The processing of the workpiece using the cutting and grinding apparatus 100 is advanced in the workpiece direction together with the rotating mechanism 120 by the slider 125 while rotating the tool 1. First, the R-shaped portion 105 of the workpieces 101 and 102 is cut by the cutting blade surface 11. At this time, the R-shaped portion 105 of the workpieces 101 and 102 is always pressed against the cutting blade surface 11 by the pressing force of the clamp mechanism 113. By this cutting process, a rough R shape is formed.

  Next, the tool 1 is further advanced by the slider 125, and grinding is performed so that the grinding wheel surface 13 contacts the R-shaped portion 105. Also at this time, the R-shaped portion 105 of the workpieces 101 and 102 is pressed against the grinding wheel surface 13 by the pressing force of the clamp mechanism 113. Thereby, the R-shaped portion 105 is ground so as to be smooth.

  In this way, machining with different machining allowances can be performed with one tool 1 by the cutting and grinding apparatus 100 using the tool 1 of the first embodiment.

By using the above-described machining method, the problem in the case of trying to machine one machining site with one tool in the above-described machining example is solved. That is, in the R-shaped machining, a tool whose diameter is usually smaller than the machining site is used. If it does so, the peripheral speed of the grinding wheel surface of a tool cannot be raised. For this reason, in the initial stage of machining with a large machining allowance, the same grinding wheel surface is used for a long time, and there is a problem that the abrasive grain surface is worn and the holding of the tool is bad. In this regard, in the tool 1 according to the first embodiment, the cutting blade surface 11 suitable for the large machining allowance is used in the initial stage of such a large machining allowance. For this reason, the wear of the tool 1 is small even with a large machining allowance. And since a fine process can be continuously performed by the grinding wheel surface 13 thereafter, a processed surface having a desired roughness (smoothness) can be obtained. Therefore, even if the machining from a large machining allowance to a small machining is continuously performed, the wear of the tool 1 can be reduced.

(Embodiment 2)
FIG. 5 is a perspective view showing the tool 2 of the second embodiment.

  The tool 2 has a first cutting blade surface 21, a second cutting blade surface 22, a first grinding wheel surface 23, and a second grinding wheel surface 24. These are provided side by side in the axial direction on the surface of the cylindrical tool 2.

  The depth of the second cutting blade 32 of the second cutting blade surface 22 is shorter than the depth of the first cutting blade 31 of the first cutting blade surface 21. The interval between the second cutting blades 32 is also shorter than the interval between the first cutting blades 31. Therefore, when machining, the machining allowance is less when machining with the second cutting blade surface 22 than with the first cutting blade surface 21.

  The second abrasive grain 34 on the second grinding wheel surface 24 is finer than the first abrasive grain 33 on the first grinding wheel surface 23. Accordingly, the machining allowance for the processing by the second grinding wheel surface 24 is less than that for the first grinding wheel surface 23 in processing.

  Therefore, the machining allowance for the first cutting blade surface 41, the second cutting blade surface 42, the first grinding wheel surface 43, and the second grinding wheel surface 44 is the first cutting blade surface 41, the second cutting blade surface 42, The number decreases in the order of the first grinding wheel surface 43 and the second grinding wheel surface 44.

  The processing method according to the second embodiment is basically the same as that of the first embodiment. That is, first, the tool 2 is attached to the cutting grinding apparatus 100 described above. Then, the tool 2 is rotated in the direction of the workpiece, and roughing with the first cutting blade surface 21 is performed. Subsequently, the tool 2 is advanced so that the second cutting blade surface 22 comes into contact with the workpiece, and finish cutting is performed. Subsequently, the tool 2 is further advanced to perform rough grinding with the first grinding wheel surface 23 and finally finish grinding with the second grinding wheel surface 24.

  Thereby, it is possible to perform with one tool 2 in the order of rough cutting with large machining allowance, finish cutting, rough grinding, and finish grinding. Moreover, since the first cutting blade surface 21, the second cutting blade surface 22, the first grinding wheel surface 23, and the second grinding wheel surface 24 are arranged in this order in the direction of the cylindrical axis, the tool is advanced in one direction. Thus, rough cutting, finish cutting, rough grinding, and finish grinding can be sequentially performed by moving the tool 2 in one direction.

(Embodiment 3)
FIG. 5 is a side view showing the tool of the third embodiment.

  The tool 3 of the third embodiment has a first cutting blade surface 41, a second cutting blade surface 42, a first grinding wheel surface 43, and a second grinding wheel surface 44. These are provided side by side in the axial direction on the surface of the cylindrical tool 3. The cutting blade surfaces of the first cutting blade surface 41 and the second cutting blade surface 42 and the abrasive surfaces of the first grinding wheel surface 43 and the second grinding wheel surface 44 are all the same as in the second embodiment.

The diameters of the first cutting blade surface 41, the second cutting blade surface 42, the first grinding wheel surface 43, and the second grinding wheel surface 44 are gradually reduced by the amount of the machining allowance. Here, A to D in the figure show the respective machining allowances, and the diameter is smaller by this amount. The machining allowance decreases in the order of A>B>C> D.

  By reducing the tool diameter by the machining allowance in this way, the machining with less machining allowance can be performed with a tool having a small tool diameter.

  In addition, since the processing method using this tool 3 is the same as that of Embodiment 2, description is abbreviate | omitted.

  As described above, in the third embodiment, from the roughing process to the finishing process can be performed with one tool, as in the first and second embodiments. Further, in the third embodiment, the tool diameter of the part to be cut and ground is changed by one tool 3, so that machining of machining allowance according to the work details can be performed by one tool 3.

  As described above, according to the first and second embodiments, it is possible to machine the workpiece surface with a plurality of different machining allowances. In particular, since the cutting surface and the grinding wheel surface are held by one tool, it is possible to carry out from roughing to grinding finishing with one tool.

  In addition, since the cutting surface and grinding wheel surface are lined up in the axial direction of the cylindrical tool from the larger machining allowance to the smaller machining tool, the tool can be advanced in one direction and the machining can be performed from a machining with a large machining allowance to a small machining. Can be performed in order.

  Further, as in the second embodiment, two cutting blade surfaces and two grinding wheel surfaces are provided in one tool, so that two steps of cutting and two steps of grinding can be performed with one tool. it can.

  Further, as in the third embodiment, by changing the tool diameter of the part where cutting and grinding are performed, it is possible to perform processing according to the fineness of the work with one tool 3.

  Although the embodiments to which the present invention is applied have been described above, the present invention is not limited to these embodiments. For example, the combination of the cutting blade surface and the grinding wheel surface may be various combinations in addition to the embodiment shown as the embodiment. For example, one cutting blade surface with a large machining allowance and three grinding wheel surfaces for carrying out stepwise grinding, or three cutting blade surfaces with stepped machining allowance, and further grinding in stages It is preferable to have various cutting blade surfaces and grinding wheel surfaces according to the application, such as three grinding wheel surfaces for performing the above.

It is a perspective view of the cutting grinding tool in Embodiment 1 to which the present invention is applied. It is explanatory drawing for demonstrating the example of a process. It is a front schematic diagram of a cutting grinding device using a cutting grinding tool. It is a side schematic diagram of a cutting grinding device using a cutting grinding tool. It is a perspective view which shows the cutting grinding tool of Embodiment 2 to which this invention is applied. It is explanatory drawing for demonstrating the cutting grinding tool of Embodiment 3 to which this invention is applied.

Explanation of symbols

1 tool,
11 Cutting blade surface,
12 cutting blade 13 grinding wheel surface,
14 Abrasive surface,
21, 41 first cutting blade surface,
22, 42 Second cutting blade surface,
23, 43 The first grinding wheel surface,
24, 44 Second grinding wheel surface,
100 cutting and grinding equipment,
105 R-shaped part,
120 Rotating mechanism.

Claims (5)

It is the surface of the cylinder and aligned in the axial direction of the cylinder,
At least one cutting blade surface;
At least one grinding wheel surface;
A cutting and grinding tool comprising: The cutting blade surface has a first cutting blade surface having a first cutting blade and a second cutting blade surface having a second cutting blade whose depth is shorter than that of the first cutting blade. ,
The grinding wheel surface has a first grinding wheel surface made of a first abrasive grain and a second grinding wheel surface made of a second abrasive grain smaller than the first abrasive grain. The cutting and grinding tool according to claim 1.   The first cutting blade surface, the second cutting blade surface, the first grinding wheel surface, and the second grinding wheel surface are arranged in the order of the cylindrical axis. 2. The cutting and grinding tool according to 2. A cutting / grinding tool having at least one cutting blade surface and at least one grinding wheel surface which is a surface of a cylinder and aligned in the axial direction of the cylinder;
Rotating means for attaching the cutting and grinding tool so that the cutting blade surface comes to the side closer to the workpiece,
Tool feeding means for advancing the cutting and grinding tool attached to the rotating means in the workpiece direction;
A cutting and grinding apparatus comprising: A method of machining a workpiece using a cutting and grinding tool having a surface of a cylinder and having at least one cutting blade surface and at least one grinding wheel surface aligned in the axial direction of the cylinder,
The cutting is performed by rotating the cutting and grinding tool, cutting the workpiece using the cutting blade surface, and subsequently grinding the cut portion using the grinding wheel surface. Grinding method.

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