JP2006026713A - Working apparatus and working method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working apparatus for working the inside-wall surface of a tubular body with high accuracy. <P>SOLUTION: This working apparatus 1 for performing working to the inside surface B of a bore of a cylinder S is provided with a boring bar 10 which can be inserted into the bore of the cylinder S as being rotated, rough working edge 20 for rough working the inside surface B of the bore, rolling roller 30 for forming a plurality of recessed parts D on the inside surface B of the bore rough worked with the rough working edge 20, finishing edge 40 for finishing the inside surface B of the bore on which the concave parts are formed with the rolling roller 30, guide pad 50 for guiding the boring bar 10 along the inside surface B of the bore and fluid supplying machine 60 for supplying cutting fluid to the rough working edge 20 and the finishing edge 40. They are mounted to the same boring bar 10 in the order of the rough working edge 20, the rolling roller 30, the finishing edge 40 and the guide pad 50 from the side of the nose end toward the side of rear end. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a processing apparatus and a processing method for processing an inner wall surface of a cylindrical body such as a bore inner surface of a cylinder of an automobile engine.

  Conventionally, by forming a dimple-like recess in the bore inner surface of a cylinder of an automobile engine or the like and providing an oil sump, the piston sliding inside the cylinder is prevented from being seized and slidability is improved (reduction of friction and wear). ) (See, for example, Patent Document 1).

  The concave portion is formed on the inner surface of the bore by using, for example, a rolling process, a laser processing, a shot blasting process, etc., but burrs are generated at the peripheral edge of the concave portion due to these processes, so the concave portion is formed. In order to remove this burr later, it is generally performed to finish the inner surface of the bore.

However, since this finishing process is performed in a process different from the recess forming process, the processing axis in the recess forming and the processing axis in the finishing process are misaligned, and the depth of the recess is likely to vary. In some cases, it was not possible to ensure a proper burn-in prevention function.
Japanese Patent Laid-Open No. 2000-179397

An object of this invention is to provide the processing apparatus and processing method which can process the inner wall surface of a cylindrical body with high precision.
In order to achieve the above object, according to the present invention, there is provided a processing apparatus for processing an inner wall surface of a cylindrical body, which can be inserted into the inner hole of the cylindrical body while rotating. And a recess forming means for forming a plurality of recesses in the inner wall surface of the cylindrical body, and a finishing means for finishing the inner wall surface of the cylindrical body in which the recess is formed by the recess forming means. The recess forming means and the finishing means are provided in the boring bar, and the finishing means is provided on the rear end side of the boring bar from the recess forming means. The

  Moreover, in order to achieve the said objective, according to this invention, it is a processing method for processing with respect to the inner wall surface of a cylindrical body, Comprising: A several recessed part is formed in the inner wall surface of the said cylindrical body An inner hole of the cylindrical body while rotating a boring bar provided with a recess forming means and a finishing means arranged on the rear end side of the concave portion forming means for finishing the inner wall surface of the cylindrical body A processing method is provided for insertion into the.

  In the present invention, the recess forming means and the finishing means are provided in the same boring bar so that the finishing means is located on the rear end side of the recess forming means, and the inner portion of the cylindrical body is rotated while rotating the boring bar. Insert into the hole.

  As a result, it becomes possible to simultaneously perform the formation of the recess on the inner wall surface of the cylindrical body and the finishing process on the same axis, so that the machining axis in the recess formation and the machining axis in the finishing process are identical. In addition, the depth of the recess can be made constant without variation, and the inner wall surface of the cylindrical body can be processed with high accuracy.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a cross-sectional view showing an inner surface of a bore of a cylinder of an automobile engine and an enlarged cross-sectional view of a recess, and FIGS. 2A and 2B are views showing a processing apparatus according to a first embodiment of the present invention. 2 (A) is a front view thereof, FIG. 2 (B) is a side view thereof, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 4 is a cross-sectional view of the processing apparatus according to the first embodiment of the present invention. FIG. 5 is an enlarged view showing another rolling roller applicable to the processing apparatus according to the first embodiment of the present invention, and FIG. 6 is a processing apparatus according to the first embodiment of the present invention. FIG. 7 is a sectional view showing a fluid lubricating film formed between the guide pad and the bore inner surface of the processing apparatus according to the first embodiment of the present invention. is there.

  The processing apparatus 1 according to the first embodiment of the present invention is an apparatus for forming a plurality of dimple-shaped recesses in a spiral shape on a bore inner surface B of a cylinder S of an automobile engine, as shown in FIG. As shown in FIGS. 2A and 2B, a boring bar 10 that can be inserted into the bore of the cylinder S while rotating, a roughing blade 20 for roughing the bore inner surface B of the cylinder S, and the bore inner surface B A rolling roller 30 capable of forming a recess D in the surface, a finishing blade 40 for finishing the bore inner surface B in which the recess D is formed, a guide pad 50 for guiding the boring bar 10 along the bore inner surface B, And a fluid supply device 60 for supplying fluid such as cutting fluid to the roughing blade 20 and the finishing blade 40.

  The boring bar 10 of the processing apparatus 1 has a diameter smaller than the bore diameter of the cylinder S, and can be rotated around the axis L by a driving device (not shown) and the cylinder along the axis L. It is supported so as to be movable relative to S.

  A roughing blade 20 is attached to the tip of the boring bar 10. In addition, a rolling roller 30 is rotatably mounted on the boring bar 10 on the rear end side from the roughing blade 20. Further, a finishing blade 40 is attached to the boring bar 20 on the rear end side from the rolling roller 30. Therefore, in the processing apparatus 1 according to the present embodiment, these are mounted on the boring bar 10 in the order of the roughing blade 20, the rolling roller 30, and the finishing blade 40 from the front end side to the rear end side. Yes. In the present embodiment, the side where the boring bar 10 is inserted into the bore of the cylinder S is referred to as the tip end side of the boring bar 10, and the side where the boring bar 10 is pulled out from the bore of the cylinder S is referred to as the boring bar. 10 is called the rear end side.

  As shown in FIG. 3, in the boring bar 10, a first supply path 11 that penetrates from the rear end side along the axis L and bends at the front end side toward the rough machining blade 20, A second supply path 12 branched from the first supply path 11 toward the vicinity of the finishing blade 40 is formed. The first supply path 11 is connected to a fluid supply machine 60 capable of supplying a fluid such as cutting fluid at the rear end of the first supply path 11. The fluid supply device 60 can supply the cutting fluid to the roughing blade 20 through the first supply path 11, and the first supply path 11, the second supply path 12, and the like. It is possible to supply the cutting fluid to the finishing blade 40 via

The roughing blade 20 is mounted on the boring bar 20 so as to protrude from the circumferential surface of the boring bar 10 by a predetermined distance in the radial direction, and is inserted into the bore of the cylinder S while the boring bar 10 rotates. that when, as shown in FIG. 2 (B), the cylinder S becomes possible to roughing the bore inner surface B so that the inner diameter R _1. Examples of the material constituting the roughing blade 20 include cemented carbide obtained by sintering tungsten carbide (WC) with cobalt (Co), CBN (Cubic Boron Nitride), natural diamond (Natural). Diamond) and the like.

  As shown in FIG. 4, the rolling roller 30 includes a roller body 31 supported by the boring bar 10 so as to be rotatable about a rotation axis M slightly inclined with respect to the axis L, and the roller body 30. And 12 pressing portions 32 provided on the roller main body 31 so as to protrude in the radial direction of 31. These pressing portions 32 are arranged substantially evenly on the circumferential surface of the roller main body portion 31 along the circumferential direction thereof. Accordingly, as shown in FIG. 4, when the boring bar 10 rotates about the axis L (in the direction of arrow A in FIG. 4), the roller body 31 rotates while closely contacting the bore inner surface B of the cylinder S ( In FIG. 4, the pressing portions 32 are continuously pressed against the bore inner surface B, whereby indentations (concave portions D) due to the pressing portions 32 are formed on the bore inner surface B. Further, by inserting the boring bar 10 into the bore of the cylinder S along the axis L, a large number of recesses D are formed in a spiral shape on the bore inner surface B (see FIG. 1). Examples of the material constituting the rolling roller 30 include super hard metal, CBN, natural diamond, and the like.

  In addition, as shown in FIG.5 and FIG.6, you may comprise a rolling roller by changing the number of press parts and the space | interval of press parts. FIG. 5 shows another rolling roller 30 ′ applicable to the processing apparatus according to the first embodiment of the present invention. This rolling roller 30 ′ is similar to the above-described rolling roller 30, and is a roller body portion. 31 and the pressing portion 32, but differs from the above-described rolling roller 30 in that only four pressing portions 32 are provided.

  FIG. 6 shows still another rolling roller applicable to the processing apparatus according to the first embodiment of the present invention, and this rolling roller 30 ″ is similar to the above-described rolling roller 30 in the roller main body 31. However, only two pressing parts 32 are provided, and the two pressing parts 32 are provided along the circumferential surface of the roller body 31 in the circumferential direction. Are different from the above-described rolling roller 30 in that they are not evenly arranged.

  In this way, by arbitrarily setting the number of pressing portions of the rolling roller and the intervals between the pressing portions, the area ratio of the recess D in the bore inner surface B of the cylinder S and the recess D formed in the bore inner surface B are as follows. This arrangement can be arbitrarily set, and a desired anti-seizing function and sliding function can be ensured.

2 (A) and 2 (B), the finishing blade 40 is mounted on the boring bar 10 so as to protrude from the circumferential surface of the boring bar 10 by a predetermined distance in the radial direction. When the boring bar 10 is inserted into the bore of the cylinder S while rotating, as shown in FIG. 2 (B), is roughing the inner diameter R ₁ by roughing blade 20, a plurality of recesses D by threading rollers 30 There it is possible to finishing the cylinder S formed bore diameter R _2. Examples of the material constituting the finishing blade 40 include cemented carbide, CBN, natural diamond, and the like.

  The roughing blade 20, the rolling roller 30, and the finishing blade 40 described above can be adjusted in the radial direction of the boring bar 10 from the viewpoint of processing the bore inner surface B of the cylinder S with high accuracy. It is preferable.

As shown in FIGS. 2A and 2B, the guide pad 50 of the processing apparatus 1 according to the present embodiment follows the axial center L on the circumferential surface of the boring bar 10 on the rear end side from the finishing processing blade 40. It is provided to extend. The guide pad 50 includes five pad portions 51 arranged along the circumferential direction of the boring bar 10. Virtual outer peripheral circle formed by the five pads 51 has a boring bar 10 and concentrically, yet the virtual outer peripheral circle, the size can be in close contact with the bore inner surface B of the bore diameter R ₂ after finishing Have Therefore, the guide pad 50 can be used as a guide by being in close contact with the bore inner surface B of the cylinder S after finishing. Examples of the material constituting the pad portion 51 of the guide pad 50 include cemented carbide, cermet, and PCD (Polycrystalline Diamond).

  Next, the operation will be described.

When the boring bar 10 of the processing apparatus 1 is inserted into the bore of the cylinder S while being rotated around the axis L by a driving device (not shown), first, roughing is attached to the tip of the boring bar 10. blade 20 abuts the bore internal surface B, with the rotation and insertion of the boring bar 10, the roughing blade 20 is roughing the bore inner surface B to the internal diameter R _1. At this time, the cutting fluid is supplied from the fluid supply device 60 to the roughing blade 20 via the first supply path 11.

When the boring bar 10 is further inserted, the rolling roller 30 comes into contact with the bore inner surface B which has been roughly machined into the inner diameter R ₁ , and the roller main body 31 around the rotation axis M as the boring bar 10 rotates. Rotates relative to the boring bar 10, and the pressing portions 32 protruding from the roller main body portion 31 are pressed against the inner surface of the bore to form a plurality of concave portions D in a spiral shape. In the rolling process by the rolling roller 30, burrs are formed on the periphery of each recess D.

When the boring bar 10 is further inserted, contact machining blade 40 finish the bore inner surface D of the concave portion D is roughing the inner diameter R ₁ is formed by those, with the rotation and insertion of the boring bar 10, the finishing cutter bore inner surface B is finished the bore diameter R _2, burr formed around the recess D is removed by rolling the rolling rollers 30 by 40. During this finishing process, the cutting fluid is supplied to the finishing blade 40 from the fluid supply device 60 via the first supply path 11 and the second supply path 12.

When the boring bar 10 is further inserted, the processed bore inner surface B finish bore diameter R ₂ recess D is formed, the pad portions 51 of the guide pad 50 is inserted with close contact. At this time, as described above, the cutting fluid is supplied from the fluid supply device 60 to the roughing blade 20 and the finishing blade 40 via the first and second supply paths 11 and 12. The oil is already held in each recess D formed in the bore inner surface B, and each recess D functions as an oil reservoir. Then, the fluid lubricant film J is formed between the surface of each pad portion 51 of the guide pad 50 and the bore inner surface B of the cylinder S as shown in FIG. 7 by the cutting fluid retained in the oil reservoir.

  As described above, in the present embodiment, the rolling roller 30 and the finishing blade 40 are provided on the same boring bar 10 so that the finishing blade 40 is positioned on the rear end side of the rolling roller 30. 10 is rotated and inserted into the bore of the cylinder S. As a result, the formation of the recess D on the bore inner surface B and the finishing process can be performed simultaneously on the same axis L, so that the machining axis in the recess formation and the machining axis in the finishing process are identical. In addition, the depth of the recess D can be made constant without variation, and the bore inner surface B of the cylinder S can be processed with high accuracy.

  Further, in the present embodiment, the roughing blade 20 is provided on the boring bar 10 so as to be positioned on the tip side from the rolling roller 30. As a result, in addition to the formation of the recess D and the finishing process, the roughing of the bore inner surface B before the formation of the recess D can be simultaneously performed on the same axis L, and these processing axes coincide with each other. The bore inner surface B of the cylinder S can be processed with higher accuracy.

  Further, in the present embodiment, the guide pad 50 is provided on the boring bar 10 so as to be positioned on the rear end side from the finishing blade 40. In the processing apparatus 1 according to the present embodiment, the burr generated in the rolling process is removed by the finishing process by simultaneously performing the rolling process and the finishing process on the same axis L of the same boring bar 10. Therefore, the guide pad 50 can be brought into close contact with the bore inner surface B machined by the machining apparatus 1 on the rear end side of the finishing blade 40 and used as a guide means.

  Further, in this embodiment, the cutting fluid supplied to the roughing blade 20 and the finishing blade 40 is held in a large number of recesses D processed by the processing device 1 itself, and the guide pad 50 and the bore inner surface B of the cylinder S are A fluid lubricating film J is formed therebetween. Thus, by changing the boundary between the guide pad 50 and the bore inner surface B from the boundary lubrication state to the fluid lubrication state, the clearance between the guide pad 50 and the bore inner surface B can be minimized. Guide characteristics (straightness, guide rigidity) are greatly improved. As a result, bending of the processing apparatus 1 itself, fluttering of the cutting edge, chattering, and the like are suppressed, so that very accurate processing (roundness, cylindricity, surface roughness, etc.) is performed on the bore inner surface B of the cylinder S. Can be achieved.

  Further, in the present embodiment, the fluid lubrication film J is formed between the guide pad 50 and the bore inner surface B of the cylinder S to change the boundary lubrication state to the fluid lubrication state. Since there is no direct contact, the life of the processing apparatus 1 can be extended.

[Second Embodiment]
FIG. 8 is a sectional view of a processing apparatus according to the second embodiment of the present invention.

  The processing apparatus 1a according to the second embodiment of the present invention is different from the processing apparatus 1 according to the first embodiment described above in that the recess D is formed in the bore inner surface B using laser processing instead of rolling. However, other configurations are the same as the configuration of the processing apparatus according to the first embodiment. Below, only the difference with the processing apparatus 1 which concerns on 1st Embodiment is demonstrated about the processing apparatus 1a which concerns on 2nd Embodiment.

  As shown in FIG. 8, the machining apparatus 1a according to the second embodiment of the present invention includes a boring bar 10a, a roughing blade 20, a finishing blade 40, a guide pad 50, and a fluid supply device 60, and includes a tip side. Are attached to the same boring bar 10a in the order of the roughing blade 20, the finishing blade 40 and the guide pad 50 from the rear end side to the rear end side, and the first supply path 11 and the inside of the boring bar 10 It is the same as the processing apparatus 1 according to the first embodiment in that the second supply path 12 is formed. However, the processing apparatus 1a according to the present embodiment includes a laser oscillator 70 and a reflecting mirror 80 instead of the rolling roller 30, and further allows laser light oscillated from the laser oscillator 70 to pass therethrough. It differs from the processing apparatus 1 according to the first embodiment in that the passage 13 is formed in the boring bar 10a.

The laser oscillator 70 of the processing apparatus 1a according to the present embodiment is an oscillator that oscillates laser light for forming a recess D by laser processing the bore inner surface B of the cylinder S. As shown in FIG. 8, the laser oscillator 70 is provided so as to be able to oscillate laser light along the axis L of the boring bar 10a from the rear end side of the boring bar 10a. Examples of the laser oscillated by the laser oscillator 70 include processing laser light such as YAG laser, CO ₂ laser, argon laser, excimer laser, ruby laser, CO laser, or iodine laser.

  As shown in FIG. 8, the boring bar 10a of the machining apparatus 1a according to the present embodiment penetrates along the axis L from the rear end of the boring bar 10a and bends at a substantially right angle on the front end side. Thus, a passage 13 opened between the roughing blade 20 and the finishing blade 40 is formed. In addition, a reflecting mirror 80 capable of reflecting the laser beam is provided at a portion where the passage 13 is bent. The laser light oscillated from the laser oscillator 70 enters the passage 13 formed in the boring bar 10a, proceeds along the axis L direction of the boring bar 10a, and is reflected by the reflecting mirror 80 at a substantially right angle. Then, the laser beam is irradiated to the bore inner surface B of the cylinder S on the rear end side from the roughing blade 20 and the front end side from the finishing processing blade 40, and the concave portion D is formed in the bore inner surface B by laser processing. It is possible.

  Next, the operation will be described.

Boring bar 10a of the processing apparatus 1a is inserted into the bore of the cylinder S while rotating about the axis L, roughing blade 20 is roughing the bore inner surface B to the internal diameter R _1. At this time, the cutting fluid is supplied to the roughing blade 20 via the first supply path 11 by the fluid supply machine 60.

  When the boring bar 10a is further inserted, the laser beam oscillated from the laser oscillator 70, passes through the inside of the boring bar 10a through the passage 13, and is reflected by the reflecting mirror 80 irradiates the bore inner surface B. A recess D is formed in the bore inner surface B by this laser processing. In the laser processing using the laser oscillator 70 and the reflecting mirror 80, burrs are formed on the periphery of each recess D due to material divergence or the like.

When boring bar 10a is further inserted, the inner diameter R ₁ in the rough machined recess D has a bore inner surface B formed can be finish machined by finish machining blade 40 in bore diameter R _2, resulting burrs removed by laser processing Is done. During this finishing process, the cutting fluid is supplied to the finishing blade 40 from the fluid supply device 60 via the first supply path 11 and the second supply path 12.

When boring bar 10a is further inserted, the processed bore inner surface B finish bore diameter R ₂ recess D is formed, the pad portions 51 of the guide pad 50 is inserted with close contact. At this time, as in the first embodiment, since the cutting fluid supplied to the roughing blade 20 and the finishing blade 40 is held in each recess D, fluid lubrication is provided between the guide pad 50 and the bore inner surface B. A film J is formed (see FIG. 7).

  As described above, in the present embodiment, the laser oscillator 70 and the reflecting mirror 80 are provided and the passage 13 is formed in the boring bar 10a so that the laser beam can be irradiated to the bore inner surface B on the tip side from the finishing blade 40. . As a result, the formation of the recess D on the bore inner surface B and the finishing process can be performed simultaneously on the same axis L, so that the machining axis in the recess formation and the machining axis in the finishing process are identical. In addition, the depth of the recess D can be made constant without variation, and the bore inner surface B of the cylinder S can be processed with high accuracy.

  In the present embodiment, the laser oscillator 70 and the reflecting mirror 80 are provided and the passage 13 is formed in the boring bar 10a so that the bore inner surface B can be irradiated with laser light on the rear end side from the roughing blade 20. As a result, in addition to the formation of the recess D and the finishing process, the roughing of the bore inner surface B before the formation of the recess D can be simultaneously performed on the same axis L, and these processing axes coincide with each other. The bore inner surface B of the cylinder S can be processed with higher accuracy.

  Furthermore, in the present embodiment, the guide pad 50 is provided on the boring bar 10a so as to be positioned on the rear end side from the finishing blade 40. In the processing apparatus 1a according to the present embodiment, laser processing and finishing processing are simultaneously performed on the same axis L of the same boring bar 10a, so that burrs generated by laser processing are removed by finishing processing. Therefore, on the rear end side of the finishing blade 40, the guide pad 50 can be brought into close contact with the bore inner surface B processed by the processing apparatus 1a itself and used as a guide means.

  In this embodiment, the cutting fluid supplied to the roughing blade 20 and the finishing blade 40 is held in a large number of recesses D processed by the processing device 1 itself, and a fluid is provided between the guide pad 50 and the bore inner surface B. A lubricating film J is formed. Thus, by changing the guide pad 50 and the bore inner surface B from the boundary lubrication state to the fluid lubrication state, the clearance between the guide pad 50 and the bore inner surface B can be minimized, and the boring bar 10a by the guide pad 50 can be minimized. Guide characteristics (straightness, guide rigidity) are greatly improved. This suppresses bending, fluttering, chattering, and the like of the processing apparatus 1a itself, and therefore extremely accurate processing (roundness, cylindricity, surface roughness, etc.) for the bore inner surface B of the cylinder S. Can be achieved.

  Furthermore, in this embodiment, the fluid lubrication film J is formed between the guide pad 50 and the bore inner surface B, and the guide pad 50 directly contacts the bore inner surface B by changing from the boundary lubrication state to the fluid lubrication state. As a result, it is possible to extend the life of the processing apparatus 1a.

  The embodiment described above is described for facilitating the understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

FIG. 1 is a sectional view showing an inner surface of a bore of a cylinder of an automobile engine and an enlarged sectional view of a recess. 2 (A) and 2 (B) are views showing the processing apparatus according to the first embodiment of the present invention, FIG. 2 (A) shows a front view thereof, and FIG. 2 (B) shows a side view thereof. Show. FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is an enlarged view showing the rolling roller of the processing apparatus according to the first embodiment of the present invention. FIG. 5 is an enlarged view showing another rolling roller applicable to the processing apparatus according to the first embodiment of the present invention. FIG. 6 is an enlarged view showing still another rolling roller applicable to the processing apparatus according to the first embodiment of the present invention. FIG. 7 is a cross-sectional view showing a fluid lubricating film formed between the guide pad and the bore inner surface of the processing apparatus according to the first embodiment of the present invention. FIG. 8 is a cross-sectional view of a processing apparatus according to the second embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a ... Processing apparatus 10, 10a ... Boring bar 11 ... 1st supply path 12 ... 2nd supply path 13 ... Passage 20 ... Roughing blade 30 ... Rolling roller 31 ... Roller main-body part 32 ... Pressing part 40 ... Finishing blade 50 ... guide pad 51 ... pad part 60 ... fluid supply machine 70 ... laser oscillator 80 ... reflecting mirror

Claims (13)

A processing apparatus for processing an inner wall surface of a cylindrical body,
A boring bar that can be inserted while rotating into the inner hole of the cylindrical body;
A recess forming means for forming a plurality of recesses on the inner wall surface of the cylindrical body;
Finishing processing means for finishing the inner wall surface of the cylindrical body in which the recess is formed by the recess forming means,
The recess forming means and the finishing means are provided on the boring bar,
The finishing device is disposed on the rear end side of the boring bar with respect to the recess forming device.   The processing device according to claim 1, wherein the recess forming means is a rolling roller capable of rolling the recess on the inner wall surface of the cylindrical body. The rolling roller is
A roller body rotatably supported by the boring bar;
Two or more pressing parts provided on the circumferential surface of the roller body part so as to protrude in the radial direction of the roller body part,
The processing apparatus according to claim 2, wherein the two or more pressing portions are arranged substantially evenly along a circumferential direction of a circumferential surface of the roller main body portion. The rolling roller is
A roller body rotatably supported by the boring bar;
Two or more pressing parts provided on the circumferential surface of the roller body part so as to protrude in the radial direction of the roller body part,
The processing apparatus according to claim 2, wherein the two or more pressing portions are unevenly arranged along a circumferential direction of a circumferential surface of the roller main body portion. The recess forming means includes
Laser oscillation means capable of oscillating laser light along the axial direction of the boring bar from the rear end side of the boring bar;
Reflecting means for reflecting the laser light oscillated from the laser oscillation means toward the inner wall surface of the cylindrical body,
The processing apparatus according to claim 1, wherein a passage through which the laser beam passes is formed inside the boring bar, and the reflecting means is disposed in the passage. Further comprising guide means for guiding the boring bar along the inner wall surface of the cylindrical body,
The guide means is provided on the boring bar,
The processing apparatus according to claim 1, wherein the guide unit is disposed on a rear end side of the boring bar with respect to the finishing processing unit. Further comprising roughing means for roughing the inner wall surface of the cylindrical body,
The roughing means is provided on the boring bar,
The processing apparatus according to any one of claims 1 to 6, wherein the roughing means is disposed closer to a tip end side of the boring bar than the recess forming means. Fluid supply means capable of supplying a fluid via a supply path formed in the boring bar;
The processing apparatus according to claim 6 or 7, wherein a fluid lubricating film is formed between an inner wall surface of the cylindrical body and the guide means by the fluid supplied from the fluid supply means.   The processing apparatus according to claim 8, wherein the fluid supply unit supplies the fluid to at least one of the roughing unit or the finishing unit via the supply path. A processing method for processing an inner wall surface of a cylindrical body,
A concave portion forming means for forming a plurality of concave portions on the inner wall surface of the cylindrical body, and a finishing means for finishing the inner wall surface of the cylindrical body that is disposed on the rear end side of the concave portion forming means are provided. The processing method which inserts a boring bar in the inner hole of the said cylindrical body, rotating.   The said recessed part formation means is a processing method of Claim 10 which forms the said recessed part in the inner wall face of the said cylindrical body using a rolling roller.   The processing method according to claim 11, wherein the recess forming means forms the recess on an inner wall surface of the cylindrical body using a laser beam. The boring bar is provided with guide means for guiding the boring bar along the inner wall surface of the cylindrical body on the rear end side from the finishing processing means,
While supplying a fluid between the inner wall surface of the cylindrical body and the guide means, and forming a fluid lubrication film between the inner wall surface of the cylindrical body and the guide means, the boring bar is moved to the cylinder. The processing method according to any one of claims 10 to 12, which is inserted into an inner hole of a cylindrical body.

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