JP4367194B2 - Processing roller and manufacturing method thereof - Google Patents

Description

  The present invention is made of cemented carbide, high speed steel, ceramics, etc., and forms fine recesses (oil sumps) for reducing friction on the surface of a workpiece, for example, the outer peripheral surface of a cylindrical member such as a crankpin, a journal or a cam journal. The present invention relates to a processing roller used in the manufacturing process and a manufacturing method thereof.

  Conventionally, the processing roller described above has fine irregularities on the outer peripheral surface thereof, and the fine concaves and convexes are pressed against the surface of the workpiece, for example, the outer peripheral surface of the cylindrical member with a constant load, so that the fine concave portions are formed on the outer periphery of the cylindrical member. It is formed on the surface.

JP 2002-46001 A

  However, in the above-described conventional processing roller, when a concave portion such as a through hole such as an oil hole or a key groove is formed on the outer peripheral surface of the cylindrical member as a workpiece, a fine concave portion is formed on the outer peripheral surface of the cylindrical member. During processing, fine convexes and concaves may fall into concave parts such as the above-mentioned through holes and key grooves, and impact force is applied to the convex parts located before and after the concave convex parts, or the convex parts are holes. There is a problem that chipping may occur due to contact with the edge of the keyway or the key groove, and it has been a conventional problem to solve this problem.

  The present invention has been made paying attention to the above-described conventional problems, and in the case where a concave portion such as a through hole such as an oil hole or a key groove is formed on the outer peripheral surface of a cylindrical member as a workpiece, the outer peripheral surface Provided are a processing roller and a manufacturing method of the processing roller that are capable of forming a fine recess on the outer peripheral surface of a cylindrical member while preventing a problem such as chipping from occurring in the fine unevenness of the cylindrical member and extending the life. The purpose is that.

  As a result of intensive studies to achieve the above object, the present inventors have provided the buffer body such as an elastic member in the concave portion of the fine unevenness on the outer peripheral surface of the roller body of the processing roller. It has been found that this has been achieved, and the present invention has been completed.

  That is, the processing roller of the present invention is a processing roller that has fine irregularities on the outer peripheral surface of a disk-shaped roller body and presses the fine irregularities against the work to form fine concaves on the surface of the work, It is characterized in that a buffer made of a material softer than the material of the roller main body is arranged in the concave portion of the fine irregularities on the outer peripheral surface of the roller main body. As a means to solve the problem.

  On the other hand, the manufacturing method of the processing roller of the present invention has a configuration in which fine irregularities are formed on the outer peripheral surface of the disk-shaped roller body, and after the buffer is filled in the concaves of the fine irregularities, barrel processing is performed. The configuration of the manufacturing method of the processing roller is a means for solving the above-described conventional problems.

  According to the processing roller of the present invention, since it has the above-described configuration, for example, when forming a fine recess on the outer periphery of a cylindrical member provided with a recess such as a through hole such as an oil hole or a key groove, the outer periphery Even if the projections and recesses of the fine irregularities fall into the through-holes and depressions, it is possible to prevent defects such as chipping from occurring in the fine irregularities and to prevent spills when attaching and detaching tools. As a result, it is possible to achieve a very excellent effect that a long life can be realized.

  In the processing roller of the present invention, a disk whose outer peripheral edge is located radially inward from the fine irregularities on the outer peripheral surface of the roller body is provided adjacent to both side surfaces of the roller body, and is buffered by these disks. The structure which pinches | interposes a body can be employ | adopted and it becomes possible to prevent the buffer body arrange | positioned in the recessed part of a fine unevenness | corrugation from dropping in this case.

  Further, in the processing roller of the present invention, a disk-shaped disc made of a material softer than the material of the roller main body and having an outer peripheral edge located radially outside the bottom portion of the concave portion of the fine irregularities on the outer peripheral surface of the roller main body. The buffer body can be provided adjacent to the side surface of the roller body, or the buffer body can be positioned between the adjacent roller bodies. In this case, the roller body having a plurality of convex portions in the rotation axis direction can be provided. Mounting of the shock absorber becomes easy.

  Further, in the processing roller according to the present invention, it is desirable that the buffer body is made of an elastic member such as rubber, and the buffer body made of this elastic member is preferably protruded radially outward from the convex portion of the fine unevenness. For example, when the processing roller and the outer peripheral surface of the cylindrical member are in contact with each other and the processing roller is rotated by the rotation of the cylindrical member, even if oil mist or the like is supplied, there is no slippage. Thus, an accurate one-to-one rotation without deviation is performed.

  On the other hand, in the manufacturing method of the processing roller according to the present invention, a buffer is filled in a minute uneven recess formed on the outer peripheral surface of the disk-shaped roller body, and is sandwiched from both sides by the disk, or is buffered on the side surface of the roller body. It is possible to adopt a configuration in which barrel processing is performed after the body is adjacent or the buffer body is positioned between adjacent roller bodies, and in this case, it is possible to efficiently remove the excess buffer body Thus, the cost of the processing roller can be reduced.

  EXAMPLES Hereinafter, although an Example demonstrates this invention still in detail, this invention is not limited to a following example.

[Example 1]
As shown in FIG. 1, the processing roller 1 has fine irregularities 2b on the outer peripheral surface 2a of a roller body 2 having a disc shape, and as shown in FIG. 3, the convex portions of the fine irregularities 2b. The tip is pressed against a cylindrical member W as a workpiece to form a fine recess on the outer peripheral surface Wa.

  In this case, a buffer body 3 made of an elastic member softer than the material of the roller body 2 is disposed in the recess 2c of the fine unevenness 2b of the outer peripheral surface 2a of the roller body 2, and as shown in FIG. The buffer body 3 is protruded radially outward from the convex part 2d of the fine irregularities 2b.

  When manufacturing the processing roller 1, first, the fine irregularities 2b are formed on the outer peripheral surface 2a of the disk-shaped roller body 2, and subsequently, the buffer 3 is formed in the concave portions 2c of the fine irregularities 2b. After being filled, barrel processing is performed, whereby it is possible to efficiently remove the excess buffer body 3 and to reduce the cost.

  When the fine recess is formed on the outer peripheral surface Wa of the cylindrical member W provided with the oil hole Wb as shown in FIG. 3 using the processing roller 1 described above, the portion without the oil hole Wb is shown in FIG. As described above, since the buffer body 3 made of an elastic member is in pressure contact with the outer peripheral surface Wa of the cylindrical member W, even if oil mist or the like is supplied, the fine recess is reliably processed without slipping.

  On the other hand, in the portion with the oil hole Wb, as shown in FIG. 5, even if the convex portion 2d of the fine unevenness 2b of the outer peripheral surface 2a falls into the oil hole Wb, the buffer body 3 made of an elastic member falls. Since the convex part 2d and the convex part 2d before and behind it prevent the direct contact with the peripheral edge of the oil hole Wb, it is possible to avoid problems such as chipping in the fine irregularities 2b, and in addition, when attaching / detaching the tool As a result, the life of the processing roller 1 can be extended.

[Example 2]
As shown in FIG. 6, in this processing roller 11, the disks 4 are located on both sides of the roller body 2 with the outer peripheral edge 4 a positioned radially inward of the convex part 2 d of the fine unevenness 2 b of the outer peripheral surface 2 a of the roller body 2. It is provided adjacent to the surface, and the buffer 3 is sandwiched between these disks 4 and 4, and the other configurations are the same as those of the first embodiment.

  In the processing roller 11 of this embodiment, by adopting the above-described configuration, it is possible to prevent the buffer body 3 disposed in the concave portion 2c of the fine unevenness 2b from dropping off.

[Example 3]
As shown in FIG. 7, in this embodiment, the case where the processing roller 21 is an all-round processing roller is shown. In this processing roller 21, the rotation axis direction (the left-right direction in the drawing) of the outer peripheral surface 22a of the roller body 22 is shown. The buffer body 23 made of an elastic member is attached with the plurality of convex portions 22d arranged in the left and right.

[Example 4]
As shown in FIG. 8, the processing roller 31 has two roller main bodies 32, and a buffer 33 is positioned between the roller main bodies 32 and 32.

  In the processing roller 31 of this embodiment, by adopting the above configuration, the buffer body 33 can be easily attached to the roller body 32 having a plurality of fine irregularities 32b in the rotation axis direction.

  In the above-described embodiment, the case where the fine recesses are formed on the outer peripheral surface Wa of the cylindrical member W provided with the oil holes Wb using the processing roller 1 has been described as an example. It is possible to form fine concave portions on the outer peripheral surface Wa of the provided cylindrical member W in the same manner, and in this case, there is no problem such as chipping in the fine unevenness 2b. As a result, the life of the processing roller 1 is increased.

It is front explanatory drawing (a) and side explanatory drawing (b) which show one Example of the processing roller of this invention. Example 1 It is a partial expansion explanatory drawing of the fine unevenness | corrugation of the processing roller of FIG. Example 1 It is operation | movement explanatory drawing (a) from the front direction which shows the condition which forms a fine recessed part in the outer peripheral surface of a cylindrical member using the processing roller of FIG. 1, and end surface explanatory drawing (b) of a cylindrical member. Example 1 It is expansion operation explanatory drawing from the side surface direction which shows the condition which forms a fine recessed part in the outer peripheral surface of a cylindrical member using the processing roller of FIG. Example 1 It is expansion operation explanatory drawing from the side surface which shows the condition which forms a fine recessed part in the oil hole installation position in the outer peripheral surface of a cylindrical member using the processing roller of FIG. Example 1 It is the elements on larger scale from the side direction which shows the other Example of the processing roller of this invention. (Example 2) It is explanatory drawing. It is front explanatory drawing which shows other Example of the processing roller of this invention. (Example 3) It is front explanatory drawing which shows other Example of the processing roller of this invention. (Example 4)

Explanation of symbols

1,11,21,31 Processing roller 2,22,32 Roller body 2a, 22a Outer peripheral surface 2b, 32b Fine unevenness 2c Recessed portion 2d, 22d Convex portion 3,23,33 Buffer 4 Disk W Cylindrical member Wa Cylindrical member Outer surface Wb Cylindrical oil hole

Claims (10)

  A processing roller that has fine irregularities on the outer peripheral surface of a disk-shaped roller body and presses the convex portions of the fine irregularities against the work to form fine concaves on the surface of the work, the outer peripheral surface of the roller body A processing roller characterized in that a buffer body made of a material softer than the material of the roller body is arranged in the concave portion of the fine unevenness.   A disk in which an outer peripheral edge portion is located radially inward from a convex portion of fine irregularities on an outer peripheral surface of the roller body is provided adjacent to both side surfaces of the roller body, and a buffer body is sandwiched between these disks. 2. The processing roller according to 1.   A processing roller that has fine irregularities on the outer peripheral surface of a disk-shaped roller body, and presses the fine irregularities on the workpiece to form fine depressions on the surface of the workpiece. Also, a disc-shaped buffer body made of a soft material and having an outer peripheral edge portion positioned radially outside the bottom portion of the concave and convex portions on the outer peripheral surface of the roller body is provided adjacent to the side surface of the roller body. A processing roller characterized by that.   The processing roller according to claim 3, wherein the processing roller has two or more roller main bodies, and a buffer is positioned between adjacent roller main bodies.   The processing roller according to claim 1, wherein the buffer body is made of an elastic member.   The processing roller according to claim 5, wherein a buffer body made of an elastic member is protruded radially outward from a fine uneven projection.   In manufacturing the processing roller according to claim 1, forming a fine unevenness on the outer peripheral surface of the disk-shaped roller main body, filling a buffer in the concave portion of the fine unevenness, and then performing barrel processing. A method for manufacturing a processing roller.   When manufacturing the processing roller according to claim 2, fine irregularities are formed on the outer peripheral surface of the disk-shaped roller main body, and the concave portions of the fine irregularities are filled with a buffer and adjacent to both side surfaces of the roller main body. A method of manufacturing a processing roller, characterized in that barreling is performed after a buffer body is sandwiched between disks provided.   When manufacturing the processing roller according to claim 3, forming a fine unevenness on the outer peripheral surface of the disk-shaped roller main body, and adhering a buffer on the side surface of the roller main body, and then performing barrel processing. A method for manufacturing a processing roller. When manufacturing the processing roller according to claim 4, forming a fine unevenness on the outer peripheral surface of the disk-shaped roller body, positioning the buffer body between the adjacent roller bodies, and then performing barrel processing. A method for manufacturing a processing roller.

Images