JP2002160160A - Shaping device for grinding wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To repolish a polishing surface without taking off a grinding wheel from a grinding unit and prevent an error caused by reinstallation of the grinding wheel when repolishing the grinding surface of the grinding wheel to be brought into contact with a machining object for a grinding device for grinding and machining a surface of a roll or the like. SOLUTION: When polishing and machining the surface of the machining object G with the grinding wheel 25 of the grinding unit 10 located in the grinding device 1, a dresser unit 30 is provided on an end part of the device body and an axis Go of the machining object and an axis Gp of a dresser grinding wheel 31 are disposed to be parallel to each other. When repolishing on the grinding surface of the grinding wheel 25 is required at machining of the machining object, the grinding unit is moved laterally and positioned with respect to the dresser unit. Then, the grinding surface of the grinding wheel 25 is repolished while the grinding wheel 25 is reciprocated in a predetermined range. After that, the grinding wheel 25 can be immediately used for grinding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding apparatus for grinding a surface of a cylindrical or cylindrical workpiece such as a roll for regenerating a grinding surface of a grinding wheel. With regard to the apparatus, in particular, the dressing (sharpening) and truing (shaping) of the grinding surface of the grinding wheel are performed using a rotating roll-shaped dresser wheel supported on a shaft disposed at a position parallel to the axis of the workpiece. Related to the device to perform.

[0002]

2. Description of the Related Art When manufacturing rolls used in a general steel mill or rolls used in a papermaking company, a roll material having a predetermined diameter and body length is applied to the roll surface. Is formed into a predetermined diameter using a processing device such as a lathe. Thereafter, the roll surface subjected to the lathe processing is subjected to grinding using a grinding wheel such as a grinding wheel so that the roughness of the roll surface as a workpiece becomes a predetermined value. As the grinding wheel such as the grinding wheel, for example, the outer surface (circumferential surface) of a large-diameter grinding wheel having a predetermined thickness supported on an axis parallel to the axis of a roll as a workpiece is processed. The grinding wheel is configured to abut on the surface of a roll as an object to perform grinding while reciprocating the grinding wheel in the body length (length) direction of the workpiece.

[0003] In addition, for rolling rolls and calender rolls that require mirror finishing, and other rolls that require special precision machining, relatively rough machining is performed using a grinding means such as a rough grinding wheel. It is necessary to further perform mirror finish processing on the substrate subjected to the above. Therefore, when performing the surface finishing of the roll that needs to perform the mirror finish, because it is not possible to perform a sufficient mirror finish depending on the large-diameter grinding wheel, a metal cup-shaped or wheel-shaped grinding wheel. On the grinding surface that comes into contact with the roll to be processed,
Grinding surfaces are formed by processing such as depositing hard and fine crystals such as PVA and diamond by electrodeposition.

As a grinding device for performing the above-mentioned precise surface processing, it is known to use a device as disclosed in, for example, JP-A-2000-84848. The conventional grinding apparatus is configured as shown in FIGS. 8 and 9 and has one end of an apparatus main body 2 of a grinding apparatus 1 like a general machine tool such as a grinding machine. A rotary drive unit 3 is disposed in the unit, a tailstock 5 slidable with respect to the apparatus body is disposed in the other end, and a chuck 4 disposed in the rotary drive unit 3 and a tailstock 5 are provided. The workpiece G is supported between the umbrella-shaped cone 6 and the workpiece G is rotated at a predetermined speed by the rotation drive unit 3. Also,
In the grinding unit 10 for performing the grinding of the surface of the workpiece G, a grinding wheel 25 for performing the grinding by being brought into contact with the workpiece G is arranged. Driven by a drive motor located at the other end. A control panel 2 for controlling the grinding of the workpiece G
a is provided to control the processing of the workpiece G and the movement of each operating member of the grinding device based on the information set in the control panel.

[0005] In the grinding device 1, as shown in the side view of FIG. 9, the tailstock 5 is moved along a guide rail 8 provided on the device main body 2 so as to hold the workpiece G. And a guide rail 18 arranged on the rear side of the apparatus main body 2.
Is configured to move the grinding unit 10 along the direction. The slide bed 7 supporting the tailstock 5 is moved using the drive shaft 9 with respect to the guide rail 8 for moving the tailstock 5, and the movement is performed by using a conventional machine tool. A member having a similar configuration can be used. In order to move the grinding unit 10, a support shaft 16 is reciprocated via a slide bed 17 by a drive shaft 19 arranged corresponding to a guide rail 18. Is reciprocated a predetermined distance in the length direction.

In the grinding unit 10, a pressing mechanism is provided on the main body 11 in order to bring the ground surface of the grinding wheel 25 into contact with the workpiece G with a predetermined pressing force. In order to set the grinding surface of the grinding wheel 25 in parallel with the axis Go of the workpiece G supported by the main body, the swing table 14 is supported on the support table 16 via the support shaft 14a. It is arranged so that the contact angle of the grinding wheel 25 is accurately set by the swing motor 15. The swing table 1
The motor 13 for forward and backward movement is arranged to move the main body 11 forward and backward with respect to 4, and the positioning of bringing the grinding surface of the grinding wheel 25 into contact with the workpiece G is omitted. The pressing force of the grinding wheel 25 is provided so as to be adjustable by using a pressing unit that performs the pressing.

The grinding unit 10 constructed as described above
Can be configured as a rotary grinding wheel body 20 having a configuration as shown in FIG.
Rotary shaft 21 protruding from main body 11 of grinding unit 10
Is provided with a magnet 23 which is protected by a cover 22a, and the magnet 23 is fixed by a plurality of bolts 22b. Also, on the back side of the grinding wheel 25, a grinding wheel 25 is provided via a mount 24 for being attracted and held by the magnet 23,
Grinding is performed such that the surface of the end of the grinding wheel 25 is brought into contact with the workpiece G. The relationship between the workpiece G and the grinding wheel 25 is such that the axis of the grinding wheel 25 is disposed at right angles to the axis Go of the workpiece G, and the grinding surface of the grinding wheel 25 is aligned with the axis Go. If the surfaces are set to be parallel, the surface grinding of the workpiece G can be easily performed with high accuracy.

When the surface of the workpiece G is ground by using the grinding wheel 25 as shown in FIG. 10, a grinding wheel surface resinoid formed on the processing surface of the grinding wheel, PV
The abrasive grains such as A and diamond are peeled off, or cutting chips enter between the abrasive grains to cause clogging, resulting in a state where the processed surface does not work well. In addition, the surface of the grinding wheel may be unevenly worn so that it is not parallel to the axis of the workpiece, and it is necessary to re-polish (dressing) the grinding wheel to eliminate such inconvenience. Becomes In order to perform dressing of the grinding wheel, a white stone (a grinding wheel for re-polishing), an oil whetstone, or the like is pressed by hand while being pressed against a grinding surface of a rotating grindstone, A method of setting a diamond dresser (in which an industrial diamond is embedded in the end face of a mild steel shaft) in a holder, attaching the diamond dresser to a grinding device, and performing a re-polishing operation while pressing the grinding surface of a grindstone is used.

[0009]

However, when using the above-described method of re-grinding a grinding wheel by holding a white stone or an oil whetstone by hand, or re-grinding a grinding wheel using a diamond dresser. In this case, a portion where a tool, a small grindstone, or the like abuts on the grinding grindstone becomes a dot or a straight line. Therefore, depending on the state of contacting a tool or the like to the grinding wheel or the skill of a technician who performs the processing, after performing the dressing process, the processing surface of the grinding wheel that contacts the workpiece is changed by the tool or the like. In some cases, it is not formed into an accurate planar shape, and a problem remains in the reliability of the grinding wheel after the re-polishing process. In addition, in the method of holding a white stone or an oil whetstone by hand and re-grinding the grinding whetstone, the hand is caught in the rotating grinding whetstone, etc.
There is a safety problem. In addition to the method of manually re-polishing and the method of using a diamond dresser, a conventional apparatus for performing dressing removes a grinding wheel from a grinding unit and sets it in a dressing device that is separately disposed, Means for re-polishing using a dresser grindstone or the like provided in a dressing device may be used. However, when the grinding wheel that has been subjected to the re-polishing process is mounted on the grinding unit again, it is necessary to ensure the positioning accuracy of the grinding wheel with respect to the axis of the workpiece by matching the axis before re-polishing. Is difficult. Also, when the grinding wheel is accurately positioned and mounted on both the dressing device and the grinding unit, if the grinding wheel is heavy, there is a problem that a very troublesome operation is required.

Further, when the grinding wheel removed from the grinding unit is mounted on the dressing device and re-ground, it is necessary to accurately position the axis of the grinding wheel. When setting to
There remains a problem in the accuracy of positioning the grinding surface of the grinding wheel parallel to the axis of the workpiece. In particular, in a grinding unit for performing a mirror finish processing of a precise roll, adjustment of a mounting position of a grinding wheel has a great influence on a finishing performance such as a mirror finish of a workpiece. It is necessary to accurately define the accuracy of the processing surface, the mounting accuracy with respect to the grinding unit, and the like.

According to the present invention, a dresser grindstone is provided at a position parallel to an axis of a workpiece with respect to the grinding device,
Positioning the dressing unit with the grinding wheel mounted on the grinding unit so that the grinding surface of the grinding wheel can be re-ground, without changing the grinding wheel position once set, the surface processing of the workpiece It is an object of the present invention to provide an apparatus capable of continuously performing the shaping of a grinding wheel.

[0012]

SUMMARY OF THE INVENTION The present invention relates to a roll-shaped workpiece held by a rotating member in an apparatus body.
The present invention relates to an apparatus that performs surface processing on the workpiece by bringing a grinding wheel into contact therewith. The invention of claim 1 of the present invention provides a dresser grindstone having an axis aligned in parallel with the axis of the workpiece on an apparatus main body, and pressing a grinding surface of the grinding stone against the dresser stone. The grinding wheel and the dresser wheel are rotated, and the grinding surface of the grinding wheel is polished again. The invention according to claim 2 is characterized in that the dresser grindstone provided on the apparatus main body of the grinding device is provided on a dresser unit disposed on a tailstock of the grinding device via a support table, and the support base has a drive and support of the dresser grindstone. And the axis of the workpiece and the axis of the dresser grindstone are set parallel to each other, and the device supporting the grinding wheel is moved from the position corresponding to the workpiece to the repolishing position. Then, it is characterized in that the grinding surface of the grinding wheel can be re-polished.

According to a third aspect of the present invention, the dresser grindstone is configured as a roll-shaped member, and a dresser portion is formed in a predetermined range of the roll-shaped member, and a grinding surface of the grinding grindstone is positioned with respect to the dresser portion. The re-grinding operation can be performed while reciprocating.
In the invention of claim 4, the dresser grindstone provided in the dresser unit is configured such that bearing members are attached to both sides of a shaft provided with a dresser portion, and is easily detachable through a hole of a shaft support portion provided on a support base. The positioning of the dresser unit is performed by mounting a bearing member on the shaft support.

According to a fifth aspect of the present invention, the grinding wheel used in the grinding device is configured to rotate about an axis perpendicular to the axis of the workpiece, and the grinding surface of the grinding wheel is adjusted to the workpiece. Is formed as a plane parallel to the axis of the above. The invention of claim 6 is characterized in that the grinding wheel used in the grinding device is configured to rotate around an axis parallel to the axis of the workpiece, and the grinding surface is formed by using a circumferential surface of the grinding wheel as a grinding surface. It is characterized by being in contact with the surface of an object.

As described above, by arranging the dresser grindstone with respect to the main body of the grindstone shaping device, the grinding surface of the grindstone can be set at any timing without removing the grindstone from the grinding device during the grinding operation. Can be polished again. Also, by arranging the axis of the dresser grindstone in parallel with the axis of the workpiece, the unit supporting the grinding wheel is moved only with respect to the dressing unit, and the ground surface of the grinding wheel is moved to the workpiece. And can be polished again so as to match the processing surface. In addition, the accuracy of the regrinding of the grinding wheel can be improved, and the efficiency of the repolishing and the processing of the workpiece can be improved since there is no need to attach and detach the grinding wheel. Further, as the grinding wheel used in the grinding device, a grinding wheel using a grinding wheel having a grinding surface provided with a grinding surface around a large-diameter disk, a grinding wheel having a grinding surface perpendicular to the rotation axis of the grinding wheel, and the like. And can be easily attached to a conventional grinding device without complicating the mechanism of the dresser unit.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an apparatus for shaping a grindstone according to the present invention. Grinding device 1 shown in FIG.
Has a structure similar to that of the apparatus shown in FIGS. 8 and 9, in which one end of the workpiece G is supported by the umbrella-shaped cone 6 of the tailstock 5, and the other end of the rotation drive unit 3. A mechanism for holding and rotating the chuck 4 and a grinding unit 10 for holding and rotating an axis orthogonal to the axis Go of the workpiece so as to press the grinding wheel 25 against the workpiece G; Have been placed. One end of the body of the grinding device 1;
For example, a mechanism is provided in which the dresser unit 30 is fixedly arranged above the tailstock 5 and re-polishes the ground surface of the grinding wheel 25. In the embodiment of the present invention described below, the grinding surface 26 of the grinding wheel 25 for performing the grinding process on the workpiece G is formed on the workpiece G like the grinding wheel shown in FIG. A case where the plane is set as a plane parallel to the axis Go will be described as an example.

While the surface of the workpiece G is being ground by the grinding wheel 25, when the grinding surface 26 of the grinding wheel 25 where clogging or the like has occurred is polished again, a grinding unit is used. Re-grinding can be performed without removing the grindstone 25. Therefore, during the grinding of the workpiece,
The grinding process is interrupted at any time, and the grinding unit 1
After positioning 0 with respect to the dresser unit 30, the dresser grindstone 31 of the dresser unit 30 is rotated at a predetermined speed, and while the grinding grindstone 25 is rotated in the same manner as in the grinding, the dresser grindstone 31 is rotated. To perform re-polishing on the grinding surface 26 of the grinding wheel 25. The mounting structure of the rotary grindstone body to the grinding unit is not limited to that shown in FIG. 8, but may be configured to be mounted on the grinding unit by any means.

The dresser unit 30 disposed in the grinding device 1 can be constituted as an apparatus as shown in FIG. 2, and includes a drive motor 38 and a dresser grindstone 31.
The shaft supports 35 and 36 for supporting both ends of the
Has been placed. The shaft supports 35 and 36 are configured as those having the same mechanism as the rotation drive unit 3 and the tailstock 5 provided in the apparatus main body, drive the dresser grindstone 31, and perform the operation of holding and detaching the dresser grindstone 31. It can be easily performed. Further, the dresser grindstone 31 is configured as shown in FIG. 10, and the flange 39 a provided at the end of the rod body 32 is connected to the flange 39 provided at the end of the drive shaft of the drive motor 38, and the dresser grindstone 31 is connected. 31 can be configured to be driven to rotate.

In the example shown in FIG. 2, a bearing member for supporting the shaft end is disposed on the shaft support portions 35 and 36 disposed on the support base 37, and the small diameter shaft of the dresser grindstone 31 is used as the bearing member. It is configured to be supported. As the support table 37, as shown in FIG. 1, one plate-shaped member is arranged on the upper part of the tailstock 5, and a support table as shown in FIG. Is also possible. In addition, a support base having an arbitrary configuration may be arranged above the tailstock 5. Then, it is connected to the drive motor 38 via the flanges 39 and 39a, and the dresser grindstone 3
1 to drive the dresser whetstone 3
1 can be easily attached to and detached from the dresser unit 30, and the axis of the dresser grindstone can be easily and accurately maintained parallel to the axis of the workpiece. Further, as the dresser grindstone 31, a portion for performing a polishing process on a roll-shaped rod body 32 having an arbitrary diameter is configured as a dresser portion 33, and the grinding surface 26 of the grinding grindstone 25 is formed on the dresser portion 33. Press. Therefore,
By bringing the dresser grindstone 31 and the grinding grindstone 25 into contact with each other while rotating at an arbitrary rotation speed in an arbitrary direction, the grinding surface 26 of the grinding grindstone 25 can be re-polished (dressed).

The dresser portion 33 provided on the dresser grindstone 31 includes a grinding grindstone 25 to be polished again.
It is the same as in the case of re-polishing of a conventional grinding wheel that can be configured by adhering arbitrary abrasive grains to the dresser portion in accordance with the material of (1). In addition, when forming a ground surface with a resinoid, PVA, or the like on the surface of the dresser portion, or when forming a ground surface with hard particles such as diamond adhered thereto, the crystal of the hard abrasive grains is formed. The size and the selection of a binder or the like for bonding the abrasive grains to the grinding surface of the rod-shaped member can also be selected according to the conditions such as the material of the grinding wheel. Also, a rod-shaped mild steel material to which nothing is attached can be used.

In the apparatus shown in FIGS. 1 and 2, the axis Go of the workpiece G held by the grinding apparatus 1 is
Dresser whetstone 3 supported by dresser unit 30
One axis Gp is set in parallel. When the axis of the grinding wheel 25 supported by the grinding unit 10 is set to be perpendicular to the axis of the workpiece G, the axis of the dresser wheel 31 of the dresser unit 30 is
Positioning can be performed at a right angle so that the grinding surface of the grinding wheel 25 can be re-polished.

Therefore, the grinding unit 10 is moved from the position for grinding the workpiece G to the position for re-grinding by the dresser unit 30, and
Without removing the grinding wheel 5 from the grinding unit 10, the dresser grindstone 31 provided in the dresser unit 30 can be polished again. When re-polishing the ground surface of the grinding wheel 25, the dresser wheel 31 provided on the dresser unit 30 is rotated in a predetermined direction, and the grinding wheel 25 is ground with respect to the dresser portion 33 of the dresser wheel 31. While pressing the surface, the grinding unit 10 can be reciprocated within a predetermined range (the range of the dresser section 33) to perform a re-polishing (dressing) operation on the ground surface of the grinding wheel 25.

The example shown in FIG. 3 shows a structure of a dresser unit 40 having a structure different from that of FIG. 2, and two support stands 37 provided on the tailstock 5 of the grinding device.
The bearing 37 is configured as shaft support portions 47 and 48 that respectively support bearing members 45 and 46 that are provided integrally with the dresser grindstone 41 without providing a bearing integrally. In the dresser grindstone 41, a dresser portion 43 is formed in a predetermined range, and a rod body 42 is provided on both sides of the dresser portion 43 to a predetermined length. At one end of the rod body 42, a flange 44 is provided for connection to a flange 39 provided at the end of the drive shaft of the drive motor 38. And a bearing member 46 at the other end.

The two bearing members 45 and 46 are configured as bearing members. By inserting the bearing members 45 and 46 into shaft supports 47 and 48 provided on the support base 37, respectively, The dresser grindstone 41 can be positioned with respect to the tailstock 5 of the grinding device. The shaft support portions 47 and 48 are provided with holes for inserting a bearing member, and the outer race of the bearing member is inserted into the hole of the shaft support portion, whereby the dresser grindstone 41 is rotatably supported by the bearing member. Let it.

In the dresser unit 40 using the dresser grindstone 41, the dresser grindstone 41 can be mounted from the left end of the figure.
The following conditions are set in order to pass each constituent member of No. 1 through a hole provided in the shaft support portion. First, the outer diameter of the bearing member 45 is φ
2. The diameter of the flange 44 is φ1 and the outer diameter φ2 of the bearing member 45 is equal to the diameter of the hole of the shaft support 47. Further, the diameter φ1 of the flange 44 is set to a value smaller than the inner diameter of the hole of the shaft support portion 47 so that the flange 44 can easily pass through the hole of the shaft support portion 47.

A shaft support 48 for holding the other end of the dresser grindstone 41 has an outer diameter φ of a bearing member 46.
3, and a bearing member 46 is formed in the shaft support portion 48.
Is held in the inserted state. The inner diameter φ3 of the hole provided in the shaft support portion 48 has a relationship of φ3>φ2> φ1. If the outer diameter φ of the dresser portion 43 is set to φ ≦ φ1, the dresser grindstone 41 is inserted from the shaft support portion 48 side. And the bearing member 4
5 can be held on the shaft support 47 and the bearing member 46 can be held on the shaft support 48. When the dresser grindstone 41 is attached to and detached from the dresser unit 40, the dresser grindstone 41 can be moved in the direction of the arrow, and the drive motor 38
The flange 44 of the dresser grindstone 41 can be accurately positioned with respect to the flange 39 of the first embodiment.

In order to mount and position the bearing members 45 and 46 with respect to the holes provided in the two shaft supports 47 and 48, the outer diameter of the bearing members and the inner diameter of the holes of the shaft supports are required. Some gaps need to be formed, and they cannot be configured in the same size. Therefore, in order to accurately position the bearing member with respect to the shaft support, a means such as engaging a ridge provided on the outer periphery of the outer race of the bearing member with a concave groove provided in the shaft support is used. Alternatively, a means that allows the rotation of the dresser grindstone 41 without allowing the bearing member to idle in the hole of the shaft support portion may be used.

When re-polishing the grinding surface of the grinding wheel 25 using the dresser unit 30 or 40 shown in FIG. 2 or FIG. 3, in the state shown in FIG.
The operation of re-polishing the grinding surface 26 of the grinding wheel 25 can be performed. At this time, the axis G of the dresser grindstone 31
The axis Gq of the grinding wheel 25 is set at a position orthogonal to p, and each member is positioned at the same position as when grinding the workpiece. And the grinding wheel 25
When the grinding surface 26 is re-polished, the dresser grindstone 31 is previously adjusted with respect to the axis Gp parallel to the axis of the workpiece G.
By positioning the grinding wheel 25 on the axis Gq orthogonal to the axis, re-polishing of the grinding surface 26 of the grinding wheel 25 is performed in the same state as when processing the workpiece. It can be carried out.

As described above, when re-polishing the grinding surface 26 of the grinding wheel 25 by using the dresser wheel 31 of the dresser unit 30, as in the example using the conventional re-polishing device, Grinding unit 1
There is no need to remove from zero and perform re-polishing. During the grinding of the workpiece, the grinding wheel 25
, And after the grinding unit 10 is separated from the workpiece at an arbitrary timing, the grinding unit 1
0 is moved sideways to the dresser unit 30 and the dresser unit 3 is moved.
The grinding wheel 25 is positioned with respect to the 0 dresser wheel 31. Then, the dresser grindstone 31 is driven at a predetermined rotation speed, and while the grinding grindstone 25 is driven in the same manner as when grinding the workpiece, the grinding surface 26 of the grinding grindstone 25 is driven.
For example, when the grinding surface 26 of the grinding wheel 25 is processing the workpiece G, even if it is unevenly worn for some reason, it can be re-ground by the dresser unit. The grinding surface 26 of the grinding wheel 25 can be corrected so as to be parallel to the axis Go of the workpiece.

In addition to the case of using a rotary grindstone as in each of the above embodiments, the grindstone used in the grinding device 1 is held on a rotary shaft parallel to the axis Go of the workpiece. In some cases, a re-polishing device using the dresser unit can be applied. In the grinders having different shapes of the grindstones, for example, as shown in FIGS. 6 and 7, a grindstone body 27 in which a large-diameter grindstone 29 is attached to a grindstone shaft 28 is used. Grinding of the workpiece is performed while the workpiece 29a is pressed against the workpiece. FIG. 6 is a front view, and FIG. 7 is a side view. When the grinding surface 29a of the grinding wheel body 27 of the large diameter grinding wheel is polished again, as shown in FIG. With the axis of 27 being positioned parallel to the axis of the dresser grindstone, the grinding surface 29a of the grinding wheel 29 is polished again. Therefore, as shown in FIGS.
After the re-polishing of 9a, the grinding unit 10 can be moved to the grinding position of the workpiece as it is, and the workpiece can be easily ground.

In the embodiment of the present invention, in addition to the case where the surface of a workpiece such as a roll is ground using a grindstone, a mirror finish of the roll surface and other special surface processing are performed. For the grinding wheel to be performed, the dresser unit can be fixedly arranged with respect to the grinding device for repolishing. Further, as the dresser grindstone arranged in the dresser unit, a roll-shaped member having an arbitrary diameter and length can be used as long as the grinding grindstone can be polished again. For the dresser portion, a rod-shaped material made of mild steel to which CBN (cubic boron nitride) or diamond particles are adhered or nothing is adhered can be used. Furthermore, the dresser unit holding the dresser grindstone can be moved to the re-polishing position by being slid with respect to the tailstock frame in addition to being fixedly arranged on the upper part of the tailstock frame. When it is necessary to re-grind the grinding surface of the grinding wheel during the processing of the workpiece,
After the dresser unit is laterally moved to the movement range of the grinding unit, the grinding wheel may be positioned with respect to the dresser unit, and the grinding surface of the grinding wheel may be re-ground.

[0032]

Since the apparatus of the present invention is constructed as described above, the grinding wheel can be removed during the grinding operation by arranging the dresser wheel on the body of the grinding wheel shaping apparatus. Without this, the grinding surface of the grinding wheel can be polished again at any timing. Also, by arranging the axis of the dresser grindstone in parallel with the axis of the workpiece, the unit supporting the grinding wheel is moved only with respect to the dressing unit, and the ground surface of the grinding wheel is moved to the workpiece. And can be polished again in parallel with the processing surface. In addition, the accuracy of the regrinding of the grindstone can be improved, and since the grinding wheel is not attached or detached, the efficiency of the regrind and the processing of the workpiece can be improved, and the work can be performed safely. Further, as a grinding wheel used in the grinding wheel shaping device of the present invention, any device such as a grinding wheel having a grinding surface provided around a large diameter disk, a grinding wheel having a grinding surface perpendicular to the rotating surface of the grinding wheel, etc. Can be easily attached without complicating the mechanism of the device.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a grinding apparatus to which the present invention can be applied.

FIG. 2 is an explanatory diagram of a configuration of a dresser unit arranged in a grinding device.

FIG. 3 is an explanatory diagram of another configuration of the dresser unit.

FIG. 4 is an explanatory diagram of a state of re-polishing of a grinding surface of a grinding wheel.

FIG. 5 is an explanatory diagram viewed from a direction orthogonal to FIG. 3;

FIG. 6 is another explanatory view of a state of re-polishing of the grinding surface of the grinding wheel.

FIG. 7 is an explanatory diagram viewed from a direction orthogonal to FIG. 6;

FIG. 8 is an explanatory diagram showing a configuration of a general grinding device.

FIG. 9 is a side view of the device of FIG.

FIG. 10 is an explanatory diagram showing a configuration of a grinding wheel.

[Explanation of symbols]

1 grinding device, 2 device main body, 3 rotation drive unit, 4 chuck, 5 tailstock, 6 umbrella cone, 7 slide bed, 8 guide rail,
9 drive shaft, 10 grinding unit, 11 main body, 12 motor, 13 forward and backward motor, 1
4 rocking table, 15 rocking motor, 16 support table, 17 slide bed, 18 guide rail, 19 drive shaft, 20 rotating wheel body, 21
Rotating shaft, 22 mounting board, 23 magnet, 24
Mounting stand, 25 grinding wheels, 26 grinding surfaces, 2
7 Wheel body, 28 Wheel axis, 29 Grinding surface 30 Dresser unit, 31 Dresser wheel, 32 Rod body, 33 Dresser part,
35 rotation drive unit, 36 end support unit, 37 support base, 38 motor, 39 flange, 40
Dresser unit, 41 Dresser whetstone, 4
2 rod body, 43 dresser part, 44
Flange, 45/46 Bearing member, 47/48
Axle support.

Claims (6)

[Claims] 1. An apparatus for processing a surface of a workpiece by bringing a grinding wheel into contact with a roll-shaped workpiece held by a rotating member on an apparatus body, wherein the axis of the workpiece is A dresser grindstone having an axis arranged in parallel with the apparatus body is provided, the grinding surface of the grinding wheel is pressed against the dresser grindstone, the grinding wheel and the dresser grindstone are rotated, and the grinding surface of the grinding grindstone is rotated. A grinding stone shaping device characterized by performing re-polishing. 2. A dresser whetstone provided on an apparatus main body of the whetstone shaping device is provided on a dresser unit disposed on a tailstock of a grinding device via a support base, and the support base has a drive and support of the dresser whetstone. The axis of the workpiece and the axis of the dresser grindstone are set parallel to each other via a member that performs the above steps, and the device supporting the grinding wheel is moved from the position corresponding to the workpiece to the repolishing position. The grinding wheel shaping device according to claim 1, wherein the grinding wheel is configured to be able to perform a re-polishing operation on a grinding surface of the grinding wheel. 3. The dresser grindstone is configured as a roll-shaped member, forms a dresser portion in a predetermined range of the roll-shaped member, and reciprocates a grinding surface of the grinding grindstone with respect to the dresser portion. The grinding wheel shaping device according to claim 1 or 2, wherein the grinding wheel shaping device is configured to be capable of performing a re-polishing operation. 4. The dresser grindstone provided on the dresser unit is configured such that bearing members are attached to both sides of a shaft provided with a dresser portion, and is configured to be detachable through a hole of a shaft support portion provided on a support base. The grinding wheel shaping device according to claim 3, wherein the positioning of the dresser unit is performed by attaching a bearing member to the shaft support portion. 5. A grinding wheel used in the grinding device is configured to rotate around an axis perpendicular to an axis of a workpiece, and a grinding surface of the grinding wheel is parallel to an axis of the workpiece. The grinding wheel shaping device according to any one of claims 1 to 4, wherein the grinding wheel is formed as a smooth surface and is arranged in a grinding device. 6. A grinding wheel used in the grinding device is configured to rotate around an axis parallel to an axis of the workpiece, and the circumferential surface of the grinding wheel is used as a grinding surface for the grinding wheel. The grinding wheel shaping device according to any one of claims 1 to 4, wherein the grinding wheel shaping device is arranged so as to be in contact with a surface and is arranged in a grinding device.