JP4395782B2 - Deburring device and deburring method - Google Patents

Description

The present invention relates to a deburring device and burr taking Way Method for grinding the burr scribe surface of the workpiece.

In metal processing, not a few burrs are generated on the ridgeline between the processed surface of the workpiece. From the viewpoint of improving the quality of the workpiece, the burr is preferably as small as possible. This burr can be reduced by dissolution removal using electrolytic treatment or shot blasting, but both require large facilities. On the other hand, if a burr is ground using an elastically deforming tool such as a brush in a general-purpose facility, the size of the remaining burr is not uniform, and it is difficult to ensure stable quality. In addition, as grinding this burr, the grindstone is rotatably supported so as to be displaced along the processing surface (the scribing surface: grindstone surface) where the burr of the workpiece is generated, and the supported grindstone is There is known a technique of moving while rotating in a direction along the scribing surface in a state of being in contact with the scribing surface (see Patent Document 1).
Japanese Utility Model Publication No. 63-140353 (FIG. 1)

  However, in the technique described in Patent Document 1, since the burr grinds while the grindstone rotates along the scribing surface, another processing surface (processing finish) adjacent to the scribing surface in a direction orthogonal to the grinding direction. New burr may occur on the surface.

The present invention has been made in view of the above circumstances, how method takes another adjacent hard deburring device and burr to generate burrs burrs on the processed surface with grinding the burrs scribe face with a simple structure The purpose is to provide.

Means and effects for solving the problems

The deburring device according to the present invention includes a grindstone, a grindstone support portion that rotatably supports the grindstone so that an outer peripheral surface of the grindstone is in contact with a scribing surface of a workpiece, and the grindstone is on the scribing surface. Moving means for relatively moving at least one of the grindstone and the workpiece so as to move in a direction along the scribing surface, and the grindstone is in a direction along the scribing surface. as rotated only by frictional force between the scribed surface when moving, rotating tangentially in contact with the marking surface of the outer peripheral surface of the grinding wheel, the moving means is directed in a direction of relative movement, the scribe surface It inclines in the direction which goes to the process finish surface side adjacent to.

In the deburring method of the present invention, a contact step of bringing an outer peripheral surface of a rotatable grindstone into contact with a scribing surface of a workpiece, and the grindstone moves on the scribing surface in a direction along the scribing surface. A moving step of relatively moving at least one of the grindstone and the workpiece, and in the moving step, the grindstone is rotated only by a frictional force with the scribing surface, The rotation tangent direction in contact with the scribing surface on the outer peripheral surface is inclined in the direction toward the machining surface adjacent to the scribing surface as it moves in the direction of relative movement.

  According to the present invention, since the rotational tangential direction in contact with the scribing surface on the outer peripheral surface of the grindstone is inclined with respect to the direction in which the moving means moves relative to each other, the moving direction of the grindstone with respect to the scribing surface and the scribing surface by the grindstone The grinding direction can be made different. As a result, burr is less likely to occur on the other processed surface adjacent to the grinding surface in the direction orthogonal to the moving direction of the grindstone. In addition, by simply moving the grindstone and the workpiece relative to each other, movement of the grindstone with respect to the scribing surface and grinding of the scribing surface with the grindstone can be performed simultaneously. Can do. The scribing surface refers to a grinding surface of a grindstone to be ground by a grindstone.

  In the deburring device of the present invention, it is preferable that the grindstone support portion supports the grindstone such that an outer peripheral surface of the grindstone is inclined with respect to the scribing surface. According to this, the burr | flash in the area | region where the outer peripheral surface of a grindstone is contacting in a scribing surface can be ground more efficiently.

Further, the deburring machine of the present invention, as the grinding wheel support portion, the outer peripheral surface of the grinding wheel is rotated from the previous SL pressurized Engineering finish side in contact with the scribe surface on the scribed surface, wherein It is preferable to support the grindstone. According to this, since the grindstone grinds the burr generated on the scribing surface from the finished surface, it is possible to reliably prevent the burr from being generated on the finished surface.

  The deburring device according to the present invention further includes a roller and a roller support portion that rotatably supports the roller so that an outer peripheral surface of the roller is in contact with the workpiece. More preferably, the rotational tangent direction in contact with the workpiece on the surface is along the direction in which the moving means relatively moves. According to this, the roller moves without resistance along the direction in which the moving means relatively moves. For this reason, the grindstone is guided so as to move along the direction in which the moving means relatively moves on the scribing surface. Thereby, the burr | flash of a scribing surface can be ground reliably.

  In addition, in the deburring device of the present invention, it is preferable that the roller has a conical shape, and an outer peripheral surface of the roller is in contact with a machining finish surface adjacent to the scribing surface. According to this, by appropriately setting the roller arrangement position and the inclination angle of the outer peripheral surface, the grindstone can be accurately moved along the scribing surface formed at the peripheral edge of the circular opening on the finished surface. Can do. In addition, it is possible to prevent damage to the finished surface due to the inner ring difference when the roller moves.

  Furthermore, in the deburring device of the present invention, the grindstone is provided with two or more grindstones, and the grindstones are arranged so that regions of the outer peripheral surfaces of the grindstones contacting the scribing surface are arranged on the circumference. The moving means may relatively move at least one of the grindstone and the workpiece in a direction along the circumference. According to this, just by bringing two or more grindstones into contact with the scribing surface, the center axis of the circumference on which the grindstone moves and the center axis of the circumference on which the scribing surface is formed coincide with each other. The device can be positioned.

  At this time, the deburring device of the present invention includes three or more grindstones, and the region in contact with the scribing surface on the outer circumferential surface of each grindstone has a uniform central angle on the circumference. It is preferable that a grindstone is disposed. According to this, all the grindstones can be brought into contact with the scribing surface formed along the circumference in a stable state. Moreover, a burr | flash can be efficiently ground with three or more grindstones.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings.

(First embodiment)
First, a deburring device according to a first embodiment of the present invention will be described. FIG. 1 is a side view of a deburring device 1 according to the present embodiment. FIG. 2 is a bottom view of the deburring device 1 as viewed from below in FIG.

  As shown in FIG. 1, the deburring device 1 grinds burrs on a tapered surface (a scribing surface: a grindstone surface) 15 (see FIG. 3) of a cylinder block 10 to be described later. It has a grindstone support block (grindstone support portion) 3, a grindstone 4, two roller support blocks (roller support portions) 5, two rollers 6, a shaft body 7, and a rotation mechanism (moving means) 8. ing. The main block 2 is a block having a substantially equilateral triangular shape that is tapered downward in FIG. A grindstone support block 3 and two roller support blocks 5 are fixed to three side surfaces of the main block 2. The grindstone support block 3 rotatably supports the cylindrical grindstone 4. The roller support block 5 rotatably supports the cylindrical roller 6. A shaft 7 extending in the vertical direction in FIG. 1 is fixed to the center of the upper end surface in FIG. 1 of the main block 2. The opposite end of the main block 2 in the shaft body 7 is connected to the rotation mechanism 8. The rotation mechanism 8 rotates the main block 2 together with the shaft body 7 about the central axis X. As will be described later, at the time of deburring, the rotating mechanism 8 rotates the main block 2 in the clockwise direction as viewed from above in FIG. As a result, the grindstone 4 moves in the Y direction, which is the circumferential direction around the central axis X.

  As shown in FIGS. 1 and 2, the rotation axis I of the grindstone 4 is inclined so as to go in the Y direction (the rotation direction of the main block 2) and the direction approaching the central axis X as it goes downward in FIG. 1. Yes. The inclination angle of the component related to the direction of the rotation axis I approaching the central axis X is smaller than the inclination angle of the tapered surface 15 described later. The rotation axis J of each roller 6 is orthogonal to the Y direction and is inclined so as to approach the central axis X as it goes downward in FIG. 1, and intersects the central axis X at the intersection Z. Yes. The inclination angle of the rotation axis J is the same as the inclination angle of the tapered surface 15. Then, as shown in FIG. 2, the grindstone 4 and the rollers 6 are arranged so that the outer peripheral surfaces of the grindstone 4 and each roller 6 are aligned on the circumference W and have a uniform central angle (120 degrees) on the circumference W. And each roller 6 is arrange | positioned. In addition, the grindstone 4 and each roller 6 may be arrange | positioned so that it may have a mutually different center angle on the circumference W.

  Next, the cylinder block 10 which is a workpiece of the deburring apparatus 1 will be described with reference to FIG. FIG. 3 is a cross-sectional view of the cylinder block 10. The cylinder block 10 slidably supports a piston (not shown) in an internal combustion engine, and is formed by aluminum die casting. As shown in FIG. 3, the cylinder block 10 has a bore portion 11 extending in the front-rear direction in the upper part in FIG. 3, and a skirt 12 extending in the lower part in FIG. Yes. A cylinder bore 13 having a cylindrical shape is formed in the bore portion 11. A piston (not shown) is slidably disposed in the cylinder bore 13 along the extending direction of the cylinder bore 13. An end surface of the bore 11 opposite to the skirt 12 is a connection surface (finished surface) 14 to which a cylinder head (not shown) is connected. An opening of the cylinder bore 13 is formed in the connection surface 14. The diameter of the opening is substantially the same as the diameter of the circumference W described above (see FIG. 2). A tapered surface (scratched surface) 15 is formed at the edge of the opening.

  Next, a procedure for forming the tapered surface 15 will be described with reference to FIG. FIG. 4 is a diagram for explaining a procedure for forming the tapered surface 15. As shown in FIG. 4A, first, finishing of the inner peripheral surface of the cylinder bore 13 in the cylinder block 10 is performed. Next, as shown in FIG. 4B, a tapered surface 15 is formed at the edge of the opening of the cylinder bore 13 formed on the connection surface 14. Thereafter, the connecting surface 14 is finished. At this time, burrs 16 are generated at the edge of the tapered surface 15 on the connection surface 14 side by grinding the connection surface 14.

  Next, a deburring method using the deburring apparatus 1 will be described with reference to FIG. FIG. 5 is a view showing a state where the deburring device 1 is set in the cylinder block 10. In addition, in FIG. 5, the cylinder block 10 is shown with sectional drawing. First, as shown in FIG. 5, deburring is performed so that the center axis X of the shaft body 7 and the center axis of the cylinder bore 13 coincide with each other, and the outer peripheral surfaces of the grindstone 4 and each roller 6 are in contact with the tapered surface 15. The apparatus 1 is set on the cylinder block 10 (contact process). At this time, since the outer peripheral surface of the grindstone 4 and each roller 6 has a uniform center angle on the circumference W having the same diameter as the tapered surface 15, the three-point support of the grindstone 4 and each roller 6 makes the shaft The deburring device 1 is positioned so that the center axis X of the body 7 and the center of the tapered surface 15 (center axis of the cylinder bore 13) coincide. In this state, the rotation mechanism 8 is moved so that the grindstone 4 and the roller 6 move (relatively move) on the tapered surface 15 in the Y direction (circumferential direction around the central axis X) along the tapered surface 15. The block 2 is rotated (movement process).

  The operation of the roller 6 at this time will be described with reference to FIG. FIG. 6 is a diagram showing the positional relationship between the roller 6 and the tapered surface 15 during deburring. As described above, since the inclination angle of the rotation axis J of the roller 6 is the same as the inclination angle of the taper surface 15, the outer peripheral surface of the roller 6 and the taper surface 15 are parallel as shown in FIG. We are in contact with each other. When each roller 6 moves on the tapered surface 15 along the tapered surface 15 in the Y direction, the rotational tangential direction in contact with the tapered surface 15 on the outer peripheral surface of the roller 6 is along the Y direction. As a result, the roller 6 rolls on the tapered surface 15 in the Y direction without causing friction with the tapered surface 15.

  Next, operation | movement of the grindstone 4 at this time is demonstrated, referring FIG.7 and FIG.8. FIG. 7 is a top view (viewed from above in FIG. 5) showing the positional relationship between the grindstone 4 and the tapered surface 15 during deburring. FIG. 8 is a side view of the state of FIG. As described above, since the rotation axis I of the grindstone 4 is inclined in the Y direction as it goes downward in FIG. 1, as shown in FIG. 7, the tapered surface 15 on the outer peripheral surface of the grindstone 4 and The rotating tangent direction 4a in contact with the Y direction is inclined. As a result, the grindstone 4 rolls on the tapered surface 15 in the Y direction while generating friction with the tapered surface 15 (at this time, the outer peripheral surface of the grindstone 4 is on the connecting surface 14 side on the tapered surface 15). To rotate in contact with the tapered surface 15). Due to this friction, the grindstone 4 grinds the burr 16 (see FIG. 4B) of the tapered surface 15 from the connection surface 14 into the cylinder bore 13.

  At this time, the inclination angle of the rotation axis I of the grindstone 4 with respect to the connection surface 14 is smaller than the inclination angle of the taper surface 15 with respect to the connection surface 14. The outer peripheral surface of the grindstone 4 is in contact with the edge of the tapered surface 15 on the connection surface 14 side, that is, the region where the burr 16 of the tapered surface 15 is generated. Thereby, the grindstone 4 can grind the burr | flash 16 efficiently.

  As described above, according to the deburring device 1 of the first embodiment, the rotational tangent direction 4 a that contacts the tapered surface 15 on the outer peripheral surface of the grindstone 4 is inclined with respect to the Y direction that is the moving direction of the grindstone 4. Therefore, the moving direction of the grindstone 4 with respect to the tapered surface 15 is different from the grinding direction of the tapered surface 15 by the grindstone 4 (the tangential direction at the contact portion between the grindstone 4 and the tapered surface 15). Furthermore, since the rotation tangent direction 4a that contacts the tapered surface 15 on the outer peripheral surface of the grindstone 4 is inclined in the direction toward the connecting surface 14 as it goes in the Y direction, the portion that contacts the tapered surface 15 on the outer peripheral surface of the grindstone 4 Moves in the direction opposite to the Y direction along the rotational tangent direction 4a. And since the grindstone 4 grinds the burr | flash 16 (refer FIG.4 (b)) of the taper surface 15 toward the cylinder bore 13 from the connection surface 14, it is prevented reliably that a burr | flash generate | occur | produces on the connection surface 14. FIG. Can do. Further, since the rotating mechanism 8 can rotate the main block 2 together with the shaft body 7 to move the grindstone 4 with respect to the tapered surface 15 and grind the tapered surface 15 with the grindstone 4 simultaneously, the deburring device 1 can be simplified. Can be realized with a simple configuration. Further, since burr does not occur on the connection surface 14, the connection accuracy with the cylinder head on the connection surface 14 is improved.

  In addition, since the outer peripheral surface of the grindstone 4 is inclined with respect to the tapered surface 15 and the outer peripheral surface of the grindstone 4 is in contact with the region where the burrs 16 of the tapered surface 15 are generated, the burrs 16 are more efficiently ground. be able to.

  Further, the outer peripheral surface of the roller 6 rotatably supported by the roller support block 5 and the tapered surface 15 are in contact with each other in parallel (that is, the rotation axis J of the roller 6 and the tapered surface 15 are parallel). Since the rotational tangential direction in contact with the tapered surface 15 on the outer peripheral surface of the roller 6 is along the Y direction which is the moving direction of the roller 6, the roller 6 does not generate friction with the tapered surface 15 on the tapered surface 15. Roll along the Y direction. Thereby, the grindstone 4 is guided to move in the Y direction on the tapered surface 15, and the burr 16 on the tapered surface 15 can be reliably ground.

  In the present embodiment, the deburring device 1 has one grindstone 4 and two rollers 6, but the deburring device may have two or more grindstones 4. Alternatively, one or three or more rollers 6 may be provided. At this time, from the viewpoint of stabilizing the deburring device at the time of deburring, the grinding stone 4 and Each roller 6 is preferably arranged.

  Next, a modification of the present embodiment will be described with reference to FIG. FIG. 9 is a bottom view of a deburring device 101 that is a modification of the present embodiment. In the deburring device 1 described above, the grindstone support block 3 that rotatably supports the grindstone 4 and the two roller support blocks 5 that rotatably support the roller 6 are fixed to the three side surfaces of the main block 2. As shown in FIG. 9, in the deburring device 101 according to the present modification, three grindstone support blocks 3 that rotatably support the grindstone 4 are provided on the three side surfaces of the main block 2. It is fixed. At this time, the grindstones 4 are arranged so that the outer peripheral surfaces of the grindstones 4 are arranged on the circumference W and have a uniform center angle (120 degrees) on the circumference W.

  At the time of deburring, the deburring device 101 is set to the cylinder block 10 so that the central axis X of the shaft body 7 and the central axis of the cylinder bore 13 coincide with each other and the outer peripheral surface of each grindstone 4 is in contact with the tapered surface 15. Set to. At this time, since the outer peripheral surface of each grindstone 4 is arranged so as to line up on the circumference W having the same diameter as the tapered surface 15 and to have a uniform central angle on the circumference W, three With the three-point support of the grindstone 4, the deburring device 101 is positioned so that the center axis X of the shaft body 7 and the center axis of the cylinder bore 13 coincide.

  According to this, all the grindstones 4 can be brought into contact with the tapered surface 15 in a stable state. Further, the burr 16 can be efficiently ground with the three grindstones 4.

  In the present modification, the deburring device 101 has three grindstones 4, but the deburring device may have two or three or more grindstones 4. At this time, from the viewpoint of stabilizing the deburring device at the time of deburring, the grindstone 4 is arranged so that the outer peripheral surface of the grindstone 4 is aligned within a range of a central angle of 180 degrees or more on the circumference W. Is preferred.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 10 is a side view of the deburring device 201 according to the second embodiment set in the cylinder block 10. In FIG. 10, a part of a roller support portion 105 including a roller 106 described later is omitted. Moreover, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The deburring device 201 is for grinding the burr 16 on the tapered surface 15 of the cylinder block 10 (see FIG. 3). As shown in FIG. 10, the main shaft body 102, the grindstone support portion 103, the grindstone 4, a roller support portion 105, three rollers 106, an axis alignment block 107, and a rotation handle (moving means) 108.

  The main shaft body 102 is a columnar shaft body extending in the vertical direction in FIG. 10, and the grindstone support portion 103 and the roller support portion 105 are fixed near the center in the extending direction. The grindstone support part 103 supports the cylindrical grindstone 4 rotatably. The roller support portion 105 supports three cylindrical rollers 106 in a freely rotatable manner (the roller 106 to be positioned in front of FIG. 10 is not shown). A centering block 107 is fixed to the lower end of the main shaft body 102 in FIG. The centering block 107 has a cylindrical shape having a diameter slightly smaller than the inner diameter of the cylinder bore 13. The central axis XA of the main shaft body 102 coincides with the central axis of the centering block 107. A rotary handle 108 is fixed above the main shaft body 102 in FIG. The rotation handle 108 is for the user to rotate the main shaft body 102, and includes an arm 108a extending outward from the main shaft body 102 and a handle body 108b extending upward from the end of the arm 108a. Have. As will be described later, at the time of deburring, the user holds the handle main body 108b and rotates the main shaft body 102 in the clockwise direction as viewed from above in FIG. As a result, the grindstone 4 moves in the Y direction, which is the circumferential direction around the central axis XA.

  Similar to the first embodiment, the rotation axis I of the grindstone 4 is inclined so as to go in the direction approaching the Y direction and the central axis XA as it goes downward in FIG. The inclination angle of the component related to the direction of the rotation axis I approaching the central axis XA is smaller than the inclination angle of the tapered surface 15. The rotation axis JA of each roller 106 is orthogonal to the Y direction and the central axis XA.

  Next, a deburring method using the deburring apparatus 201 will be described with further reference to FIG. FIG. 11 is a diagram showing the positional relationship among the tapered surface 15, the grindstone 4 and the roller 106 as viewed from above in FIG. 10. First, as shown in FIG. 10, by inserting the centering block 107 into the cylinder bore 13, the outer peripheral surface of the grindstone 4 is tapered while the center axis XA of the main shaft body 102 and the center axis of the cylinder bore 13 coincide. The deburring device 101 is set on the cylinder block 10 on the surface 15 so that the outer peripheral surface of each roller 106 is in contact with the connection surface 14 (contact process).

  In this state, the user rotates the rotary handle 108 so that the grindstone 4 moves (relatively moves) on the tapered surface 15 in the Y direction (circumferential direction around the central axis XA) along the tapered surface 15. (Transfer process). At this time, since the rotation axis JA of the roller 106 is orthogonal to the Y direction and the center axis XA, the rotation tangent direction in contact with the connection surface 14 of the roller 106 is along the Y direction. As a result, the roller 106 moves on the connection surface 14 in the Y direction about the central axis XA.

  Next, the operation of the grindstone 4 at this time will be described. As described above, since the rotation axis I of the grindstone 4 is inclined in the Y direction as it goes downward in FIG. 10, the rotational tangent direction 4 a in contact with the tapered surface 15 on the outer peripheral surface of the grindstone 4 is Y. Inclined with respect to direction. As a result, the grindstone 4 rolls on the tapered surface 15 in the Y direction while generating friction with the tapered surface 15 (at this time, the outer peripheral surface of the grindstone 4 is on the connecting surface 14 side on the tapered surface 15). To rotate in contact with the tapered surface 15). Due to this friction, the grindstone 4 grinds the burr 16 (see FIG. 4B) of the tapered surface 15 from the connection surface 14 into the cylinder bore 13.

  At this time, since the inclination angle of the rotation axis I of the grindstone 4 with respect to the connection surface 14 is smaller than the inclination angle of the taper surface 15 with respect to the connection surface 14, the outer peripheral surface of the grindstone 4 is inclined outward with respect to the taper surface 15. (See FIG. 8). The outer peripheral surface of the grindstone 4 is in contact with the edge of the tapered surface 15 on the connection surface 14 side, that is, the region where the burr 16 (see FIG. 4B) of the tapered surface 15 occurs.

  According to the second embodiment described above, the rotational tangential direction in contact with the tapered surface 15 on the outer peripheral surface of the grindstone 4 is inclined with respect to the Y direction, which is the moving direction of the grindstone 4, as in the first embodiment. Therefore, the moving direction of the grindstone 4 with respect to the tapered surface 15 and the grinding direction of the tapered surface 15 by the grindstone 4 can be made different. As a result, burr is less likely to occur on the connection surface 14 adjacent to the tapered surface 15 in the direction orthogonal to the moving direction of the grindstone 4. Moreover, since the movement of the grindstone 4 with respect to the taper surface 15 and the grinding of the taper surface 15 by the grindstone 4 can be simultaneously performed only by rotating the rotary handle 108, the deburring device 201 can be realized with a simple configuration. it can.

  In this embodiment, the roller 106 has a cylindrical shape. However, from the viewpoint that the roller 106 moves circularly on the connection surface 14, as shown in FIG. It may have a conical shape instead of a cylinder. At this time, the rotation axis JA 'of the roller 106A is inclined so as to be closer to the central axis XA as it goes downward in FIG. According to this, when the roller 106A moves circularly on the connection surface 14, it is possible to prevent the connection surface 14 from being damaged due to the inner ring difference of the roller 106A.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 13 is a schematic perspective view of a state in which the deburring device 301 according to the third embodiment is set on a corner member 310 that is a workpiece. As shown in FIG. 13, the corner member 310 extends in one direction, and has two processed surfaces 314 a and 314 b that extend along the extending direction of the corner member 310 and are orthogonal to each other. is doing. A tapered surface (scratched surface) 315 is formed at the boundary between the two processed surfaces 314a and 314b. In the present embodiment, the processed surface 314a is a processed surface that has been finished.

  The deburring device 301 grinds burrs on the tapered surface 315 of the square member 310, and includes a frame 302, a grindstone 304, two rollers 306a and 306b, and an actuator (moving means) not shown. Yes. The frame 302 includes a grindstone support portion 303 and a roller support portion 305. The grindstone support part 303 supports the cylindrical grindstone 304 rotatably. The roller support portion 305 supports the two rollers 306a and 306b in a rotatable manner. The actuator moves the frame 302 together with the grindstone 304 and the rollers 306a and 306b in the YB direction along the extending direction of the scribing surface 315 during deburring.

  The rotation axis IB of the grindstone 304 is inclined so as to be directed in the YB direction (the traveling direction of the frame 302) as it goes downward in FIG. The rotation axis JBa of the roller 306a is parallel to the processing surface 314a and orthogonal to the YB direction. The rotation axis JBb of the roller 306b is parallel to the processing surface 314b and orthogonal to the YB direction.

  Next, a deburring method using the deburring device 301 will be described. First, as shown in FIG. 13, the deburring device 301 is such that the outer peripheral surface of the grindstone 304 is in contact with the tapered surface 315, the outer peripheral surface of the roller 306a is in contact with the processing surface 314a, and the outer peripheral surface of the roller 306b is in contact with the processing surface 314b. Is set on the corner member 310 (contact process). In this state, the actuator moves (relatively moves) the frame 302 in the YB direction together with the grindstone 304 and the rollers 306a and 306b (moving step).

  At this time, the rotation axis JBa of the roller 306a is parallel to the processing surface 314a and orthogonal to the YB direction, and the rotational tangential direction in contact with the processing surface 314a on the outer peripheral surface of the roller 306a is along the YB direction. For this reason, the roller 306a rolls on the processing surface 314a in the YB direction without causing friction with the processing surface 314a. Further, the rotation axis JBb of the roller 306b is parallel to the processing surface 314b and orthogonal to the YB direction, and the rotational tangent direction in contact with the processing surface 314b on the outer peripheral surface of the roller 306b is along the YB direction. For this reason, the roller 306b rolls on the processing surface 314b in the YB direction without causing friction with the processing surface 314b.

  Furthermore, as described above, since the component related to the YB direction of the rotation axis IB of the grindstone 304 is inclined toward the processing surface 314b toward the YB direction, the rotational tangential direction in contact with the tapered surface 315 on the outer peripheral surface of the grindstone 304 304a is inclined to the processing surface 314b side with respect to the YB direction. Thereby, the grindstone 304 rolls on the taper surface 315 in the YB direction while generating friction with the taper surface 315 (at this time, the outer peripheral surface of the grindstone 304 is on the processing surface 314a side on the taper surface 315). To rotate in contact with the tapered surface 315). By this friction, the grindstone 304 grinds the tapered surface 315 from the processing surface 314a toward the processing surface 314b.

  According to the third embodiment described above, as in the first embodiment, the rotational tangent direction 304a in contact with the tapered surface 315 on the outer peripheral surface of the grindstone 304 is inclined with respect to the YB direction, which is the moving direction of the grindstone 304. Therefore, the moving direction of the grindstone 304 with respect to the tapered surface 315 and the grinding direction of the tapered surface 315 by the grindstone 304 can be made different. As a result, burr is less likely to occur on the processing surfaces 314a and 314b adjacent to the tapered surface 315 in the direction orthogonal to the moving direction of the grindstone 304. In particular, since the grindstone 304 grinds the tapered surface 315 from the processed surface 314a toward the processed surface 314b, it is possible to reliably prevent burr from being generated on the processed surface 314a. Further, since the actuator can move the grindstone 304 with respect to the tapered surface 315 and the grinding of the tapered surface 315 with the grindstone 304 at the same time only by moving the frame 302 in the YB direction, the deburring device 301 has a simple configuration. Can be realized.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, the following invention can be implemented.

  In the first to third embodiments, moving means such as the rotating mechanism 8, the rotating handle 108, and the actuator move the grindstones 4 and 304 along the tapered surfaces 15 and 315, but the moving means fixes the grindstone. In this state, the workpiece such as the cylinder block 10 and the corner member 310 may be moved, or the grindstone and the workpiece may be moved together.

It is a side view of the deburring apparatus which concerns on 1st Embodiment of this invention. It is a bottom view of the deburring apparatus seen from the downward direction in FIG. It is sectional drawing of the cylinder block which is a workpiece of the deburring apparatus shown in FIG. It is a figure for demonstrating the formation procedure of the taper surface shown in FIG. It is a figure which shows the state which set the deburring apparatus shown in FIG. 1 to the cylinder block. It is the figure which showed the positional relationship of the roller and taper surface shown in FIG. It is the figure which showed the positional relationship of the grindstone shown in FIG. 1, and a taper surface. It is a side view in the state of FIG. It is a bottom view of the deburring apparatus which is a modification of 1st Embodiment. It is a side view of the deburring apparatus which concerns on 2nd Embodiment of this invention. It is the figure which showed the positional relationship of the taper surface, grindstone, and roller seen from the upper direction in FIG. It is the figure which showed the positional relationship of the taper surface, grindstone, and roller in the deburring apparatus which is a modification of 2nd Embodiment. It is an external appearance perspective view of the deburring apparatus which concerns on 3rd Embodiment of this invention.

Explanation of symbols

1, 101, 201, 301 Deburring device 2 Main block 3 Wheel support block (Wheel support)
4, 304 Grinding wheel 4a, 304a Rotating tangential direction 5 Roller support block (roller support part)
6, 306a, 306b Roller 7 Shaft 8 Rotating mechanism (moving means)
10 Cylinder block 13 Cylinder bore 14 Connection surface (finished surface)
15,315 Tapered surface (scratched surface)
16 Burr 102 Main shaft 103, 303 Whetstone support 105, 305 Roller support 106 Roller 107 Axis block 108 Rotating handle (moving means)
302 Frame 310 Square member (workpiece)
314a, 314b Machined surface

Claims (8)

Whetstone,
A grindstone support portion that rotatably supports the grindstone so that the outer peripheral surface of the grindstone is in contact with the scribing surface of the workpiece;
A moving means for relatively moving at least one of the grindstone and the workpiece so that the grindstone moves in a direction along the scribing surface on the scribing surface;
When the grindstone moves in a direction along the scribing surface, it rotates only by frictional force with the scribing surface,
The rotational tangential direction in contact with the scribing surface on the outer peripheral surface of the grindstone is inclined in the direction toward the machining finish surface adjacent to the scribing surface as the moving means moves in the direction of relative movement. A deburring device.   The deburring device according to claim 1, wherein the grindstone support portion supports the grindstone such that an outer peripheral surface of the grindstone is inclined with respect to the scribing surface.   The said grindstone support part is supporting the said grindstone so that the outer peripheral surface of the said grindstone may rotate in contact with the said scribing surface from the said process finishing surface side on the said scribing surface. The deburring apparatus according to 1 or 2. Laura,
A roller support portion that rotatably supports the roller such that an outer peripheral surface of the roller is in contact with the workpiece;
The deburring device according to any one of claims 1 to 3, wherein a rotational tangential direction in contact with the workpiece on the outer peripheral surface of the roller is along a direction in which the moving unit relatively moves. .   The deburring apparatus according to claim 4, wherein the roller has a conical shape, and an outer peripheral surface of the roller is in contact with a machining finish surface adjacent to the scribing surface. Comprising two or more of the whetstones,
The grindstone is arranged so that the area in contact with the scribing surface on the outer circumferential surface of each grindstone is arranged on the circumference,
The deburring apparatus according to any one of claims 1 to 5, wherein the moving unit relatively moves at least one of the grindstone and the workpiece in a direction along the circumference. 3 or more of the above-mentioned grindstones are provided,
The deburring device according to claim 6, wherein the grindstone is arranged so that a region in contact with the scribing surface on an outer circumferential surface of each grindstone has a uniform central angle on the circumference. A contact process in which the outer peripheral surface of the rotatable grindstone is brought into contact with the scribing surface of the workpiece;
A moving step of relatively moving at least one of the grindstone and the workpiece so that the grindstone moves in a direction along the scribing surface on the scribing surface,
In the moving step,
The grindstone rotates only by frictional force with the scribing surface,
The burr is characterized in that the rotational tangent direction in contact with the scribing surface on the outer peripheral surface of the grindstone is inclined in the direction toward the machining surface side adjacent to the scribing surface as it moves in the direction of relative movement. How to take.

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