JP2018047514A - Grinding process machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simultaneously polish multiple rollers in a grinding process machine.SOLUTION: In a grinding process machine 100, first holders 102, 103 are disposed spaced away from each other along a first axis L1. Second holders 106, 107 are disposed spaced away from each other along a second axis L2 arranged parallel to the first axis L1 and set in a processing range of a process tool 104 held by a first drive device 104A. A pair of bases 108, 109 hold the pair of second holders 106, 107. A second drive device 110 rotates one 102 of the first holders. An interlock mechanism 111 rotates the pair of second holders 106, 107 in synchronization with the first holder 102.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a grinding machine.

  Japanese Patent Laid-Open No. 2001-322055 discloses a grinding machine for a rubber roller. The grinding machine for a rubber roller disclosed in the publication is an apparatus that grips both ends of a cylindrical rubber roller along one axis and polishes the outer peripheral surface of the rubber roller with a rotating grindstone while rotating the rubber roller. .

JP 2001-322055 A

  By the way, such a polishing machine for rubber rollers can process only one rubber roller at a time. If a single grinding machine can polish a plurality of (for example, two) rubber rollers at the same time, the processing capability of the rubber rollers will increase. Further, if a single grinding machine can simultaneously polish a plurality of (for example, two) rubber rollers, the production capacity can be improved without increasing the number of grinding machines. Moreover, since it is not necessary to increase the number of grinding machines, space saving can be achieved. However, an apparatus capable of simultaneously polishing a plurality of (for example, two) rubber rollers with a single grinding machine has not been proposed.

The grinding machine proposed here includes a base, a pair of first holders, a processing tool, a first drive device, an operation device, a pair of second holders, a pair of bases, and a second drive device. And an interlocking mechanism.
A pair of 1st holder is arrange | positioned at intervals along the horizontal 1st axis | shaft set above the base. The processing tool is in the shape of a cylinder or a disk, and a rotation axis is provided at the center. The first driving device rotates the machining tool around the rotation axis in a state where the rotation axis of the machining tool is held in parallel with the first axis.
The operating device includes the first drive so that a peripheral side surface of the processing tool is pressed against a side surface of the first workpiece held by the pair of first holders and moves along the side surface of the first workpiece. It is an apparatus which moves an apparatus and the said base relatively.
The pair of second holders are arranged parallel to the first axis and spaced apart along the second axis set in the machining range of the machining tool held by the first drive device. It is provided so as to be rotatable around an axis. The pair of bases are members that are attached to the base at intervals along the second axis and hold the pair of second holders, respectively. The drive device is a device that rotates one of the first holders around the first axis. The interlocking mechanism is a mechanism that interlocks with the driving device and rotates one second holder of the pair of second holders around the second axis in synchronization with the one first holder. According to such a grinding machine, a plurality of workpieces can be simultaneously machined by a single grinding machine.

FIG. 1 is a front view of a grinding machine 100 according to an embodiment. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a front view showing the first holder 102 and the second holder 106. 4 is a cross-sectional view taken along the line IV-IV in FIG. FIG. 5 is a front view showing the right base 109. 6 is a cross-sectional view taken along the line VI-VI in FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a front view showing a state in which the flange support portion 108 c is attached to the pole portion 108 b of the base 108. FIG. 10 is a rear view of the pole portion 108b. FIG. 11 is a front view of the flange support portion 108c.

  Hereafter, the grinding machine proposed here is demonstrated based on drawing. In addition, this invention is not limited to the following embodiment. Each drawing is drawn schematically and does not necessarily reflect the real thing. Each drawing shows only an example and does not limit the present invention unless otherwise specified. Moreover, the same code | symbol is attached | subjected suitably to the member and site | part which show | plays the same effect | action, and the overlapping description is abbreviate | omitted.

  FIG. 1 is a front view of a grinding machine 100 according to an embodiment. 2 is a cross-sectional view taken along the line II-II in FIG.

  Here, with respect to the processing tool 104, the grinding machine 100 has a front surface on which the workpieces 201 and 202 to be processed are arranged, and as shown in FIG. . Further, the workpieces 201 and 202 side (near side) are front (F) with respect to the machining tool 104, and the direction in which the machining tool 104 is separated from the workpieces 201 and 202 is rear (Rr). Up, down, left, right, front, and rear directions are represented by arrows U, D, L, R, F, and Rr, respectively.

  As shown in FIGS. 1 and 2, the grinding machine 100 includes a base 101, a pair of first holders 102 and 103, a processing tool 104, a first driving device 104A, an operating device 105, and a pair of first devices. 2 holders 106 and 107, a pair of bases 108 and 109, a second driving device 110, and an interlocking mechanism 111. The grinding machine 100 can polish a plurality of (in this example, two) workpieces 201 and 202 simultaneously.

  In this embodiment, the workpieces 201 and 202 to be processed are formed bodies in which rubbers 201b and 202b are formed in a cylindrical shape on the outer peripheral surfaces of the shafts 201a and 202a. The workpieces 201 and 202 are used as, for example, rollers (rubber rollers) for paper feeding in OA equipment such as various printers and facsimiles. The grinding machine 100 polishes the outer peripheral surfaces of the rubbers 201b and 202b of the workpieces 201 and 202. As a result, the cylindrical shapes of the workpieces 201 and 202 are adjusted, and necessary polishing marks are formed on the outer peripheral surfaces of the rubbers 201b and 202b of the workpieces 201 and 202. The two workpieces 201 and 202 are the same product. Here, for convenience of explanation, the workpiece 201 held by the pair of first holders 102 and 103 is appropriately referred to as “first workpiece”. The workpiece 202 held by the pair of second holders 106 and 107 is appropriately referred to as a “second workpiece”.

  The base 101 is a base that supports each component of the grinding machine 100. In this embodiment, the base 101 includes a first support table 101a and a second support table 101b. The first support table 101a is a table that movably supports the operation device 105 that operates the processing tool 104. The second support table 101b is a table on which a pair of bases 108 and 109, the second driving device 110, and the like are placed. The first support table 101a is on the rear side of the second support table 101b, and is hidden behind the second support table 101b in FIG. A pair of bases 108 and 109 are attached to the second support table 101b. In this embodiment, the second support table 101b is provided with a guide 101b1 extending in the left-right direction as shown in FIG. The guide 101b1 is a protrusion having a predetermined width that protrudes upward on the base 101 and extends in the left-right direction. The positions at which the pair of bases 108 and 109 are attached to the second support table 101b along the left-right direction are adjusted.

  The pair of first holders 102 and 103 are arranged at intervals along a horizontal first axis L1 set above the base 101, and are rotatably provided around the first axis L1. The first axis L1 is a reference axis on which the first holders 102 and 103 are arranged. FIG. 3 is a front view showing the first holder 102 and the second holder 106 arranged on the left side. The pair of first holders 102 and 103 are members that hold the first workpiece 201 as shown in FIGS. 1 and 3. A so-called outer diameter grasping collet chuck is used for the pair of first holders 102 and 103. The first holders 102 and 103 are disposed after the pair of bases 108 and 109 (see FIG. 2). The first holders 102 and 103 are independent from the pair of bases 108 and 109. The first holder 102 is supported by the second driving device 110. The first holder 103 is supported by the first core pushing mechanism 213. In FIG. 3, a flange 211 that holds a part of the base 108 and holds the first holder 102 is shown.

  As shown in FIGS. 1 and 3, the base ends 102a and 103a of the first holders 102 and 103 are tapered. The first holders 102 and 103 have outer cylinders 102c and 103c in which springs 102b and 103b are internally provided. The inner peripheral surfaces of the distal ends of the outer cylinders 102c and 103c are opened in a tapered shape, and the inner diameter is narrowed toward the inside. Grip shafts 102d and 103d are internally provided at the distal ends of the outer cylinders 102c and 103c. The gripping shafts 102d and 103d are formed with a plurality of slits along the axial direction in the circumferential direction. When the gripping shafts 102d and 103d are pushed out by the action of the springs 102b and 103b, the gripping shafts 102d and 103d are opened to the extent that the end of the shaft 201a of the first workpiece 201 can be gripped. When the end of the shaft 201a of the first workpiece 201 is abutted against the gripping shafts 102d and 103d, the gripping shafts 102d and 103d are retracted against the springs 102b and 103b. The gripping shafts 102d and 103d are closed along the inner peripheral surfaces of the outer cylinders 102c and 103c when retracted, and grip the end of the shaft 201a of the first workpiece 201. As the collet chuck as the first holders 102 and 103, one corresponding to the outer diameter of the end of the shaft 201a of the first work 201 may be adopted.

  The pair of first holders 102 and 103 are arranged with the gripping shafts 102d and 103d facing each other along the first axis L1. The distance between the gripping shafts 102d and 103d of the first holders 102 and 103 is adjusted to be slightly wider than the length of the shaft 201a of the first workpiece 201. The base ends of the pair of first holders 102 and 103 are mounted in tapered recesses 211a and 212a of the flanges 211 and 212, respectively. One flange 211 (left flange in FIG. 1) is provided in the second drive device 110. A driving pulley 111 a of the interlocking mechanism 111 is attached to the proximal end portion of the flange 211. The other flange 212 is rotatably provided on the first core pushing mechanism 213 via a bearing (not shown). Although not shown, the first core pushing mechanism 213 includes a cylinder mechanism, and moves the distance between one flange 211 and the other flange 212 closer to, away from, or moved. FIG. 1 shows a state in which the first workpiece 201 is held by a collet chuck as a pair of first holders 102 and 103 with the other flange 212 approaching the one flange 211. By separating the other flange 212 from the one flange 211 along the first axis L <b> 1 by the first core pushing mechanism 213, the first work 201 is dropped from the pair of first holders 102 and 103. Here, as the flange 212 attached to the first core pushing mechanism 213, for example, a center head (for example, KS-3P) manufactured by Kabuto Industry may be used.

  In this embodiment, first receiving members 214 and 215 are disposed near the pair of first holders 102 and 103, respectively. The 1st receiving member 214 is arrange | positioned under the left end part of the shaft 201a of the 1st workpiece | work 201 arrange | positioned along the 1st axis | shaft L1. The first receiving member 215 is disposed below the right end portion of the shaft 201 a of the first work 201. The first work 201 dropped from the pair of first holders 102 and 103 is received by the first receiving members 214 and 215. When the first work 201 is attached to the pair of first holders 102 and 103, the shaft 201 a is placed on the first receiving members 214 and 215, and the first work 201 is transferred between the first receiving members 214 and 215. Then, the first holder 103 on the right side is pushed out to the left side by the first core pushing mechanism 213. The end portion of the shaft 201a of the first workpiece 201 placed on the first receiving members 214 and 215 hits the gripping shafts 102d and 103d and is held by the gripping shafts 102d and 103d. In this state, when the flange 211 is rotated by the second driving device 110, the first work 201 held by the pair of flanges 211 and 212 is rotated.

  In addition, the attachment method of the 1st workpiece | work 201 is not limited to said method. As another method, for example, with the first core pushing mechanism 213 retracted, the distance between the end faces of the pair of gripping shafts 102d and 103d is adjusted to be about 3 to 4 mm longer than the length of the first workpiece. Next, one end of the first workpiece 201 is inserted into and held by one of the gripping shafts 102d and 103d. Then, the first core pushing mechanism 213 is advanced to reduce the distance between the end faces of the pair of gripping shafts 102d and 103d. As a result, both ends of the first work 201 are pushed into the gripping shafts 102d and 103d. In this way, the first workpiece 201 may be attached to the gripping shafts 102d and 103d. Similarly, various methods can be adopted as a method of attaching the second workpiece 202 described later.

  The collet chuck as the pair of first holders 102 and 103 is not limited to the illustrated form and the above description unless otherwise specified. For example, when the ends of the workpieces 201 and 202 are completely different, a collet chuck corresponding to the ends may be employed. The collet chuck as the pair of first holders 102 and 103 can be changed according to the workpiece 201. Various types of collet chucks have been proposed, and it is preferable to obtain ones corresponding to the workpieces 201 and 202. As the collet chuck, for example, a collet chuck made by Riken Seiki Co., Ltd. or Yukiwa Seiko Co., Ltd. can be adopted.

  The processing tool 104 has a cylindrical shape or a disk shape, and a rotation shaft 104a (see FIG. 2) is provided at the center. In this embodiment, the processing tool 104 is a disk-shaped member having a required thickness. The processing tool 104 has an abrasive surface on the outer surface. In this embodiment, the height of the rotating shaft 104 a of the processing tool 104 is matched to the height of the first workpiece 201 held by the first holders 102 and 103. In the front view shown in FIG. 1, the rotation shaft 104 a of the processing tool 104 is not shown because the height overlaps the first work 201 and is hidden behind the first work 201.

  The first driving device 104A is a device that rotates the machining tool 104 around the rotation shaft 104a in a state where the rotation shaft 104a of the machining tool 104 is held in parallel with the first axis L1. In this embodiment, the detailed structure of the first drive device 104A is omitted. However, for example, the structure that supports the rotating shaft 104a via a bearing and the power of the drive device such as a motor via a pulley are used. A power transmission mechanism for transmitting to the rotating shaft 104a may be provided. For example, the first driving device 104A can rotate the machining tool 104 at a predetermined number of rotations.

  The operating device 105 is a device that relatively moves the first driving device 104A and the base 101. The peripheral side surface of the processing tool 104 is preferably pressed against the side surface of the first workpiece 201 held by the pair of first holders 102 and 103 and moved along the side surface of the first workpiece 201. For example, the operation device 105 may include a mechanism for moving the first driving device 104A that supports the processing tool 104 in the front-rear direction and the left-right direction. The first driving device 104 </ b> A is moved back and forth by the operating device 105 so that the peripheral side surface of the processing tool 104 is pressed against the side surface of the first workpiece 201 held by the pair of first holders 102 and 103. In this embodiment, the first driving device 104 </ b> A is moved left and right by the operation device 105 so that the processing tool 104 moves along the side surface of the first workpiece 201.

  In this embodiment, the operating device 105 includes a first moving mechanism 221 and a second moving mechanism 222 for moving the first driving device 104 </ b> A with respect to the base 101. The first moving mechanism 221 is a mechanism that moves the first driving device 104 </ b> A back and forth with respect to the base 101. By the first moving mechanism 221, the processing tool 104 moves closer to or away from the first axis L1. The second moving mechanism 222 is a mechanism that moves the first driving device 104 </ b> A left and right with respect to the base 101. In this embodiment, the first moving mechanism 221 and the second moving mechanism 222 cause the processing tool 104 to move left and right along the first axis L <b> 1 while being pressed against the side surface of the first workpiece 201.

  In the example shown in FIGS. 1 and 2, the first moving mechanism 221 and the second moving mechanism 222 are embodied as follows. The operating device 105 is placed on the base plate 105a. The base plate 105 a is placed on the first support table 101 a of the base 101. The first support table 101a is provided with a first guide 105b extending left and right along the first axis L1. The base plate 105a of the operating device 105 is attached to the first guide 105b, and is attached to the first support table 101a so as to be movable left and right along the first axis L1. The base plate 105a is provided with a second guide 105c extending in the front-rear direction. The main body 105d of the operating device 105 is attached to the second guide 105c, and is attached to the base plate 105a so as to be movable back and forth. The main body 105d and the processing tool 104 of the operating device 105 are moved to predetermined positions along the first guide 105b by a ball screw mechanism or an actuator (not shown) such as a motor, and along the second guide 105c. Moved back and forth to a predetermined position. In addition, the specific structure of the 1st moving mechanism 221 and the 2nd moving mechanism 222 is not limited to said form unless it mentions especially.

Moreover, in this embodiment, the form which the 104 A of 1st drive devices were moved with respect to the base 101 with the operating device 105 back and forth and left and right was illustrated. As a result, the peripheral side surface of the processing tool 104 is pressed against the side surface of the first workpiece 201 held by the pair of first holders 102 and 103 and moves along the side surface of the first workpiece 201. The operation device 105 is not limited to such a form. The operation device 105 may be a device that relatively moves the first driving device 104 </ b> A and the base 101.
The operating device 105 includes, for example, a first mechanism that moves the first driving device 104A that supports the processing tool 104 only in the front-rear direction and a base 101 on which the pair of first holders 102 and 103 are disposed as the first driving device 104A. On the other hand, it is good also as a structure provided with the 2nd mechanism moved only to the left-right direction.
As another form, the first drive device 104A that supports the processing tool 104 moves only in the left-right direction, and the base 101 on which the pair of first holders 102 and 103 are disposed is relative to the first drive device 104A. A second mechanism that moves only in the front-rear direction may be provided.
As yet another embodiment, the position of the first driving device 104A that supports the processing tool 104 is fixed, and the base 101 on which the pair of first holders 102 and 103 are disposed is arranged in the front-rear direction and the first driving device 104A. A mechanism for moving in the left-right direction may be provided.

Here, although not shown, the second driving device 110 and the first core pushing mechanism 213 are configured such that the pair of first holders 102 and 103 held by each of the second driving device 110 and the first core pushing mechanism 213 face each other along the first axis L1. 101. Although not described here, the second driving device 110 and the first core pushing mechanism 213 include a mechanism for rotating the first holders 102 and 103 in the horizontal direction and in the vertical direction. Yes. That is, the orientations of the first holders 102 and 103 are finely adjusted in the horizontal direction and the vertical direction with respect to the first axis L1.
During processing, the processing tool 104 is pressed against the first workpiece 201 held by the first holders 102 and 103 during processing. The first work 201 held by the first holders 102 and 103 is pushed from the processing tool 104. For this reason, the 1st work 201 held along the 1st axis L1 by the 1st holders 102 and 103 is good to be held in the state bent in the shape of a little bow toward the processing tool 104, for example. . As a result, the first workpiece 201 is brought into a state along the first axis L1 by being pressed by the processing tool 104 during processing. For this reason, the second driving device 110 and the first core pushing mechanism 213 are provided with a mechanism for finely adjusting the directions of the first holders 102 and 103 in the horizontal direction and the vertical direction, respectively, although not shown. Here, as the mechanism for finely adjusting the orientation, for example, a mechanism such as a turntable may be provided in each of the second driving device 110 and the first core pushing mechanism 213, or the mechanism may be attached to the base 101 with a shim interposed therebetween. Good.

  As shown in FIG. 1, the pair of second holders 106 and 107 are parallel to the first axis L1 and are set in the machining range of the machining tool 104 held by the first driving device 104A. Arranged at intervals along the axis L2. The second axis L2 is a reference axis on which the second holders 106 and 107 are arranged. The second holders 106 and 107 are rotatably provided around the second axis L2. In this embodiment, the pair of first holders 102 and 103 and the pair of second holders 106 and 107 hold a workpiece having the same shape. The pair of second holders 106 and 107 employs the same type of collet chuck as the pair of first holders 102 and 103. That is, the base ends 106a and 107a of the pair of second holders 106 and 107 are tapered. The second holders 106 and 107 have outer cylinders 106c and 107c in which springs 106b and 107b are housed. At the tips of the second holders 106 and 107, gripping shafts 106d and 107d in which a plurality of slits along the axial direction are formed in the circumferential direction are mounted. The gripping shafts 106d and 107d are pushed open by the action of the springs 106b and 107b. When the tip of the shaft 202a of the second workpiece 202 is abutted against the gripping shafts 106d and 107d, the gripping shafts 106d and 107d are closed to grip the shaft 202a of the second workpiece 202.

  In this embodiment, as shown in FIG. 2, the processing tool 104 has a disk shape. The locus 104b of the outer periphery of the machining tool 104 is determined with respect to the movement of the machining tool 104 when machining the first workpiece 201 held by the pair of first holders 102 and 103. Here, since the processing tool 104 rotates around the rotation axis 104a and moves along the second axis L2, the cylindrical trajectory 104b is determined. The machining range of the machining tool 104 is determined by the locus of the machining tool 104. The second axis L <b> 2 should be arranged so that the second workpiece 202 held by the pair of second holders 106 and 107 is machined in the same manner as the first workpiece 201 with respect to the locus 104 b of the machining tool 104. Determine the reference position.

  In this embodiment, as shown in FIG. 2, the second axis L2 is defined at a position that is moved circumferentially upward with respect to the first axis L1 around the rotation axis 104a of the processing tool 104. In FIG. 2, the locus 104b of the outer periphery of the machining tool 104 is superimposed on the first axis L1. Further, the second axis L2 is displaced upward in the circumferential direction around the rotation axis 104a of the processing tool 104, and is disposed slightly outside in the radial direction with respect to the first axis L1. Although illustration is omitted, in practice, the outer circumferential surface 104b of the machining tool 104 is disposed along the outer peripheral surface of the first work 201 disposed along the first axis L1 and along the second axis L2. And the outer peripheral surface of the second workpiece 202. For this reason, the position of the processing tool 104, the position of the pair of first holders 102 and 103 that support the first work 201, and the position of the pair of second holders 106 and 107 that support the second work 202 are adjusted. . That is, FIG. 2 shows the positions of the processing tool 104, the positions of the pair of first holders 102 and 103 that support the first work 201, and the positions of the pair of second holders 106 and 107 that support the second work 202. The position at the time of processing is not shown.

In this embodiment, the first axis L <b> 1 is arranged with the height aligned with the center of the rotating shaft 104 a of the processing tool 104. The second axis L2 is disposed at a position moved in the circumferential direction upward with respect to the first axis L1 around the rotation axis 104a of the processing tool 104. The positions of the first axis L1 and the second axis L2 with respect to the processing tool 104 are not limited to such a form.
For example, the second axis L2 may be arranged at a position moved downward in the circumferential direction with respect to the first axis L1 around the rotation axis 104a of the processing tool 104.
Further, the first axis and the second axis may be arranged at the same distance in the circumferential direction on the basis of the height of the center of the rotating shaft 104a of the processing tool 104. For example, the first axis L1 may be disposed on the upper side in the circumferential direction, and the second axis L2 may be disposed on the lower side in the circumferential direction. In this case, when the machining tool 104 moves back and forth, the distance between the outer locus 104b of the machining tool 104 and the first axis L1, and the distance between the outer locus 104b of the machining tool 104 and the second axis L2. It can change as well. In this embodiment, for example, when the outer diameter is ground and polished to a shape in which the outer diameter changes in the axial direction on each of the first workpiece 201 and the second workpiece 202, two can be simultaneously processed into the same shape.

  As shown in FIG. 1, the second holders 106 and 107 are disposed with the gripping shafts 106d and 107d facing each other along the second axis L2. The distance between the gripping shafts 106 d and 107 d of the second holders 106 and 107 is adjusted to be slightly wider than the length of the shaft 202 a of the second workpiece 202. The base ends 106a and 107a of the pair of second holders 106 and 107 are attached to flanges 216 and 217 that are rotatably provided on the pair of bases 108 and 109, respectively.

(A pair of bases 108 and 109)
The pair of bases 108 and 109 are attached to the base 101 at intervals along the second axis L2. The pair of bases 108 and 109 hold a pair of second holders 106 and 107, respectively. In this embodiment, the left base 108 is provided with a flange 216 to which the second holder 106 is attached. The right base 109 is provided with a flange 217 to which the second holder 107 is attached.

As shown in FIG. 2, the left base 108 includes a base portion 108a, a pole portion 108b, and a flange support portion 108c.
The base 108 a is a part that is attached to the second support table 101 b of the base 101. The pole portion 108b is a portion that rises upward from the base portion 108a. The flange support portion 108c is provided on the top of the pole portion 108b and protrudes rearward. The flange 216 is supported by the flange support portion 108c.

  Here, FIG. 4 is a sectional view taken along line IV-IV in FIG. FIG. 4 shows a portion to which the left flange 216 is attached, and a cross section along a horizontal plane passing through the center line of the cylindrical flange 216 is shown.

  As shown in FIG. 4, the flange support portion 108 c provided on the base 108 includes an extension shaft 108 c 1 and bearings 108 c 2 and 108 c 3. The extension shaft 108c1 is a member attached to the pole portion 108b and extending rearward from the pole portion 108b. A hole 108c4 into which the flange 216 and the bearings 108c2 and 108c3 are mounted is formed at the tip of the extending shaft 108c1. In this embodiment, the hole 108c4 is adjusted to the outer diameter of the bearings 108c2 and 108c3 so that the bearings 108c2 and 108c3 can be mounted. On the left side of the hole 108c4, a step 108c5 for positioning the bearings 108c2 and 108c3 and a mounting portion 108c6 for mounting the seal 231 are provided. Bearings 108c2 and 108c3 to which a seal 231 and a cylindrical flange 216 are attached are attached to the hole 108c4 of the flange support portion 108c.

  The flange 216 is formed with a hole 216a for mounting the base end 106a of the second holder 106 along the central axis. In the hole 216a, the opening on the right side to which the base end 106a of the second holder 106 is attached is gradually narrowed in a tapered shape from the outside toward the inside. Two bearings 108 c 2 and 108 c 3 are mounted on the outer peripheral surface of the flange 216 with a spacer 232 interposed therebetween. A step 216b for positioning the bearings 108c2 and 108c3 at predetermined positions is provided on the outer peripheral surface of the flange 216. A disc spring 233 is mounted on the right side of the hole 108c4 of the flange support portion 108c, and a cover 234 is attached. A seal 235 is attached to the inner peripheral surface of the cover 234. A boss 111b1 of a driven pulley 111b connected to the interlocking mechanism 111 is mounted on the left side of the flange 216, and a plate 237 is fixed to the left end of the flange 216 with a bolt 238. The plate 237 fixes the driven pulley 111b to the flange 216. With this structure, the flange 216 is rotatably supported by the flange support portion 108c via the bearings 108c2 and 108c3, and rotates around the driven pulley 111b.

FIG. 5 is a front view showing the right base 109. The base 109 includes a base portion 109a, a pole portion 109b, and a flange support portion 109c.
As shown in FIG. 1, the base portion 109 a is a portion that is attached to the second support table 101 b of the base 101. The pole portion 109b is a portion that rises upward from the base portion 109a. The flange support portion 109c protrudes rearward (side on which the processing tool 104 is provided) from the upper portion of the pole portion 109b. The flange 217 is supported by the flange support portion 109c.

  Here, FIG. 6 is a VI-VI sectional view of FIG. FIG. 6 shows a portion to which the right flange 217 is attached, and a cross section along a horizontal plane passing through the center line of the flange 217 is shown.

  As shown in FIG. 6, the flange support portion 109c provided on the base 109 includes an extension shaft 109c1 and bearings 109c2 and 109c3. The extension shaft 109c1 is a member that is attached to the pole portion 109b of the base 109 and extends rearward from the pole portion 109b. A hole 109c4 into which the flange 217 and the bearings 109c2 and 109c3 are mounted is formed at the tip of the extending shaft 109c1. In this embodiment, the hole 109c4 is adjusted to the outer diameter of the bearings 109c2 and 109c3 so that the bearings 109c2 and 109c3 can be mounted. On the right side of the hole 109c4, a step 109c5 for positioning the bearings 109c2 and 109c3 and a mounting portion 109c6 for mounting the seal 241 are provided. Bearings 109c2 and 109c3 to which a seal 241 and a cylindrical flange 217 are mounted are mounted in the hole 109c4 of the flange support portion 109c.

  The flange 217 is formed with a hole 217a for mounting the proximal end 107a of the second holder 107 along the central axis. In the hole 217a, the left opening to which the base end 107a of the second holder 107 is attached is gradually narrowed in a tapered shape from the outside toward the inside. Two bearings 109c2 and 109c3 are mounted on the outer peripheral surface of the flange 217 with a spacer 242 interposed therebetween. A step 217b for positioning the bearings 109c2 and 109c3 at predetermined positions is provided on the outer peripheral surface of the flange 217. A disc spring 243 is mounted on the left side of the hole 109c4 of the flange support portion 109c, and a cover 244 is attached. A seal 245 is attached to the inner peripheral surface of the cover 244. A bearing stopper 246 is mounted on the right side of the flange 217, and a plate 247 is fixed to the right end of the flange 217 with a bolt 248. The plate 247 is fixed to the flange 217. With this structure, the flange 217 is rotatably supported by the flange support portion 109c via the bearings 109c2 and 109c3. Here, for example, a center head (for example, KS-3P) manufactured by Kabuto Industry may be used for the flange 217 supported by the flange support portion 109c.

  The right base 109 to which the flange 217 is attached in this manner is attached to the second core pushing mechanism 218 as shown in FIG. The second core pushing mechanism 218 includes a pedestal 218a, a slide table 218b, and a cylinder mechanism 218c. The pedestal 218a is a member that is placed and fixed on the second support table 101b. In this embodiment, a slide table 218b is provided on the right side of the base 218a. A base 109a of the base 109 is installed on the slide table 218b. The slide table 218b moves on the pedestal 218a along a guide 218b1 extending to the left and right. A cylinder mechanism 218c is installed on the left side of the base 218a. A base 109a of the base 109 mounted on the slide table 218b is attached to the tip of the piston 218c1 of the cylinder mechanism 218c. The second core pushing mechanism 218 moves the flange 217 together with the base 109. As shown in FIG. 1, the distance between the left and right flanges 216, 217 to which the second holders 106, 107 are attached approaches or separates.

  FIG. 1 illustrates a state in which the right workpiece 217 is brought close to the left flange 216 and the second workpiece 202 is held by a collet chuck as a pair of second holders 106 and 107. By releasing the right flange 217 from the left flange 216 by the second core pushing mechanism 218, the second workpiece 202 is dropped from the pair of second holders 106 and 107.

  In this embodiment, the second receiving members 219 and 220 are disposed below the second axis L2 between the pair of second holders 106 and 107. The second receiving member 219 is disposed below the left end of the shaft 202a of the second workpiece 202 disposed along the second axis L2. The second receiving member 220 is disposed below the right end of the shaft 202 a of the second workpiece 202. The second workpiece 202 dropped from the pair of second holders 106 and 107 is received by the second receiving members 219 and 220. When the second work 202 is attached to the pair of second holders 106 and 107, the shaft 202 a is placed on the second receiving members 219 and 220, and the second work 202 is transferred between the receiving members 219 and 220. Then, the second holder 107 on the right side is pushed out to the left side by the second core pushing mechanism 218. The ends of the shaft 202a of the second workpiece 202 placed on the second receiving members 219 and 220 abut against the gripping shafts 106d and 107d and are held by the gripping shafts 106d and 107d. In addition, the attachment method and removal method of the 2nd workpiece | work 202 to the 2nd holders 106 and 107 are not limited above.

  In this embodiment, as shown in FIGS. 1 and 2, the same collet chuck is used for the first holders 102 and 103 and the second holders 106 and 107. The first holders 102 and 103 and the second holders 106 and 107 hold the same workpiece. For this reason, the distance between the pair of bases 108 and 109 holding the second holders 106 and 107 is adjusted so that the second holders 106 and 107 and the first holders 102 and 103 are at the same distance.

  The second driving device 110 is a device that rotates one of the pair of first holders 102 and 103 (in this embodiment, the left holder 102) around the first axis L1. For example, although not shown, the second driving device 110 may include a motor and a chuck, and a mechanism for rotating the chuck that holds the flange 211 on which the first holder 102 is mounted by the motor. As a result, the first holder 102 can be rotated.

  The interlocking mechanism 111 is interlocked with the second drive device 110, and one of the pair of second holders 106 and 107 is replaced with one second holder 106 (in this embodiment, the second holder 106 on the left side) and one first holder. This is a mechanism that rotates around the second axis L <b> 2 in synchronization with 102. In this embodiment, a mechanism in which a drive pulley 111a attached to a flange 211 holding the first holder 102 and a driven pulley 111b attached to a flange 216 holding the second holder 106 are connected by a transmission belt 111c. It is. Here, a V-belt or a flat belt (for example, a V-ribbed belt made of a three-star belt) can be used as the transmission belt 111c. As shown in FIG. 2, a tensioner 111d is attached to the transmission belt 111c. The tensioner 111d may be attached to the left base 108, for example. In this embodiment, the tensioner 111d is attached to the bracket 111d1 attached to the flange support portion 108c of the base 108 with a bolt 111d2, as shown in FIG. An operation shaft 111d3 for operating the tensioner 111d is attached to the pole portion 108b of the base 108. The operation shaft 111d3 is screwed to the pole portion 108b. By turning the operation shaft 111d3, the tensioner 111d moves back and forth. By this operation, the contact condition of the tensioner 111d with respect to the transmission belt 111c is adjusted. In FIG. 1, the illustration of the tensioner 111d is omitted. Further, a part of the transmission belt 111c is broken, and the driven pulley 111b is exposed.

  In the grinding machine 100, the first holders 102 and 103 are arranged at intervals along the first axis L1 set above the base 101. The processing tool 104 is in the shape of a cylinder or a disk, and a rotation shaft is provided at the center. The first driving device 104A rotates the machining tool 104 around the rotation shaft 104a in a state where the rotation shaft 104a of the machining tool 104 is held in parallel to the first axis L1. Further, the operating device 105 is configured such that the peripheral side surface of the processing tool 104 is pressed against the side surface of the first workpiece 201 held by the pair of first holders 102 and 103 and moves along the side surface of the first workpiece 201. In addition, the first driving device 104A and the base 101 are relatively moved.

  The second holders 106 and 107 are parallel to the first axis L1 and spaced apart along the second axis L2 set in the machining range of the machining tool 104 held by the first driving device 104A. Is arranged. The pair of bases 108 and 109 are attached to the base 101 at intervals along the second axis L2, and hold the pair of second holders 106 and 107, respectively. The second drive device 110 rotates one of the first holders 102 and 103 around the first axis L1. The interlocking mechanism 111 interlocks with the second driving device 110 and rotates one of the pair of second holders 106 and 107 around the second axis L2 in synchronization with the one first holder 102. Let According to the grinding machine 100, a single unit can grind (polish) a plurality of workpieces (in this embodiment, two rubber rollers) at the same time.

  Here, the second holder 106 is spaced apart along the second axis L2 which is parallel to the first axis L1 and set in the machining range of the machining tool 104 held by the first driving device 104A. , 107 are arranged. Similarly, a pair of third holders and a pair of fourth holders are arranged along other axes set in the machining range of the machining tool 104 held by the first driving device 104A, and more workpieces can be placed. You may enable it to process simultaneously. Here, a rubber roller is exemplified as the work, but the work may be a metal roller in addition to the rubber roller. In this case, the processing tool 104 can be appropriately changed according to the workpiece. That is, at the time of machining, the machining tool 104 is pressed against the workpieces 201 and 202. At that time, since the processing tool 104 is pressed, the workpieces 201 and 202 are displaced. The position and orientation of the holder may be adjusted in consideration of the displacement of the workpieces 201 and 202.

  At this time, the machining operation of the machining tool 104 is, for example, how the machining tool 104 is moved with respect to the first axis L1 so that the first workpiece 201 held by the first holders 102 and 103 is appropriately machined. It is determined whether to operate. The positions and orientations of the pair of bases 108 and 109 may be adjusted with respect to the base 101, and the positions and orientations of the second holders 106 and 107 may be adjusted appropriately. As a result, the second workpiece 202 held by the second holders 106 and 107 can be processed with the same accuracy as the first workpiece 201.

  In this embodiment, the grinding machine 100 includes a first position adjustment mechanism 301, a second position adjustment mechanism 302, and a first direction as mechanisms for adjusting the position and orientation of the pair of second holders 106 and 107. An adjustment mechanism 303 and a second direction adjustment mechanism 304 are provided.

  The first position adjustment mechanism 301 is a mechanism that moves the second holders 106 and 107 in the vertical direction with respect to the base 101 and adjusts the vertical positions of the second holders 106 and 107. By providing the first position adjusting mechanism 301, the vertical position adjustment of the second holders 106 and 107 is facilitated. The structure of the 1st position adjustment mechanism 301 should just be a structure which can adjust the position of the 2nd holders 106 and 107 to an up-down direction, and is not specifically limited.

  The first position adjustment mechanism 301 may include, for example, a first slide mechanism and a first screw mechanism. The first slide mechanism may include a first guide disposed on the bases 108 and 109 in the vertical direction and a slider that slides on the guide. The screw mechanism may include a screw for adjusting the position of the slider with respect to the guide. The second holders 106 and 107 may be supported by the pair of bases 108 and 109 with the slide mechanism interposed therebetween. Accordingly, the vertical positions of the second holders 106 and 107 can be adjusted with high accuracy. For example, in an embodiment described later, the first guide is a long hole 504 and the slider is a bolt 512. The screws of the screw mechanism are bolts 507 and 508. The first position adjustment mechanism 301 is not limited to the embodiments described later, and various modifications can be made. For example, the configurations of the first slide mechanism and the first screw mechanism are not limited to the embodiments described later.

  The second position adjustment mechanism 302 is a mechanism that adjusts the distance between the second holders 106 and 107 and the rotation shaft 104a of the processing tool 104 in plan view. For example, the bases 108 a and 109 a of the bases 108 and 109 that support the second holders 106 and 107 may be provided with a mechanism that moves in the front-rear direction with respect to the base 101. By providing the second position adjusting mechanism 302, the position adjustment of the second holders 106 and 107 in the front-rear direction is facilitated. The structure of the 2nd position adjustment mechanism 302 should just be a structure which can adjust the position of the 2nd holders 106 and 107 to the front-back direction, and is not specifically limited.

  For example, the second position adjustment mechanism 302 may include a second slide mechanism and a second screw mechanism. The second slide mechanism may include a guide disposed in the front-rear direction on the bases 108 and 109 and a slider that slides the guide. In other words, the guide may be arranged in a direction perpendicular to the second axis in a plan view with respect to the pair of bases. The second screw mechanism may include a screw for adjusting the position of the slider with respect to the guide. The second holders 106 and 107 may be supported by the pair of bases 108 and 109 with the slide mechanism interposed therebetween. Thereby, the position in the front-rear direction of the second holders 106 and 107 can be adjusted with high accuracy. For example, in the embodiment described later, the second guide is the guide plates 404 and 405, and the slider is the slide member 407. The screw of the second screw mechanism is an adjustment bolt 406b. Note that the second position adjustment mechanism 302 is not limited to the embodiments described later, and various modifications can be made. For example, the configurations of the second slide mechanism and the second screw mechanism are not limited to the embodiments described later.

  The first direction adjusting mechanism 303 is a mechanism for adjusting the orientation of the second holders 106 and 107 along a horizontal plane. For example, a mechanism for rotating the bases 108a and 109a of the bases 108 and 109 supporting the second holders 106 and 107 in the horizontal direction with respect to the base 101 may be provided. By providing the first direction adjusting mechanism 303, it is easy to adjust the orientation of the second holders 106 and 107 along a horizontal surface. The structure of the 1st direction adjustment mechanism 303 should just be a structure which can adjust the direction of the 2nd holders 106 and 107 along a horizontal surface, and is not specifically limited.

  The first direction adjusting mechanism 303 includes, for example, a first rotating mechanism having a first rotating shaft provided perpendicular to the bases 108 and 109, and a screw for adjusting the direction of the first rotating shaft. And a third screw mechanism. The second holders 106 and 107 may be supported by the pair of bases 108 and 109 with the first rotation mechanism interposed therebetween. Thereby, the direction of the 2nd holder 106,107 with respect to the horizontal surface of the 2nd holder 106,107 can be adjusted with high precision. For example, in the embodiment described later, the first rotation shaft is the turn shaft 412 and the screw of the third screw mechanism is the adjustment bolt 414b. Note that the first direction adjustment mechanism 303 is not limited to the embodiments described later, and various modifications can be made. For example, the configurations of the first rotation mechanism and the third screw mechanism are not limited to the embodiments described later.

  The second direction adjustment mechanism 304 is a mechanism for adjusting the orientation of the second holders 106 and 107 along a vertical plane. For example, the second direction adjustment mechanism 304 may be configured by a mechanism that vertically rotates the orientations of the flange support portions 108c and 109c that support the flanges 216 and 217 to which the second holders 106 and 107 are attached. By providing the second direction adjustment mechanism 304, it is easy to adjust the orientation of the second holders 106 and 107 up and down. The structure of the 2nd direction adjustment mechanism 304 should just be a structure which can adjust the direction of the 2nd holders 106 and 107 along a perpendicular | vertical surface, and is not specifically limited.

  The second direction adjusting mechanism 304 includes, for example, a second rotating mechanism having a second rotating shaft provided horizontally with respect to the bases 108 and 109, and a screw for adjusting the direction of the second rotating shaft. And a screw mechanism. And it is good to comprise so that the 2nd holders 106 and 107 may be supported by a pair of bases 108 and 109 through this 2nd rotation mechanism, respectively. Thereby, the direction of the 2nd holder 106,107 with respect to the perpendicular | vertical surface of the 2nd holder 106,107 can be adjusted with high precision. For example, in the embodiment described later, the second rotation shaft is a bolt 512 and the screws of the fourth screw mechanism are bolts 507 and 508. Note that the second direction adjustment mechanism 304 is not limited to the embodiments described later, and various modifications can be made. For example, the configurations of the second rotation mechanism and the fourth screw mechanism are not limited to the embodiments described later.

  Below, the structure of the 1st position adjustment mechanism 301, the 2nd position adjustment mechanism 302, the 1st direction adjustment mechanism 303, and the 2nd direction adjustment mechanism 304 which were integrated in the grinding machine 100 is demonstrated in detail.

  Here, first, a second position adjustment mechanism 302 that adjusts the position of the second holders 106 and 107 in the front-rear direction, and a first direction adjustment mechanism 303 that adjusts the orientation of the second holders 106 and 107 along a horizontal plane; Will be explained.

  The second position adjusting mechanism 302 and the first direction adjusting mechanism 303 are provided on the bases 108a and 109a of the left and right bases 108 and 109, respectively. Here, the second position adjustment mechanism 302 and the first direction adjustment mechanism 303 will be described based on the base portion 108a of the left base 108. FIG. 7 is a plan view of the base 108a, and is a cross-sectional view taken along the line VII-VII in FIG. 8 is a sectional view taken along line VIII-VIII in FIG. Here, although not shown, the second position adjusting mechanism 302 and the first direction adjusting mechanism 303 having the same structure are also incorporated in the base portion 109 a of the right base 109. Also for the right base 109, the same reference numerals are given to members and parts having the same action as appropriate.

  As shown in FIGS. 2 and 8, the base portion 108a of the left base 108 includes a first base plate 401, a fixing member 402, a second base plate 403, two guide plates 404 and 405, and a first support member. 406, a slide member 407, an end plate 408, a turn plate 411, a turn shaft 412, a connecting bolt 413, and a second support member 414 are provided.

  In the base portion 108a of the left base 108, the first base plate 401 is installed on the second support table 101b of the base 101 as shown in FIG. In this embodiment, as shown in FIG. 2, a mounting piece 401 a extending downward is provided on the front side of the first base plate 401. The position of the first base plate 401 is adjusted with respect to the second support table 101b. A fixing member 402 is attached along the rear side of the first base plate 401. The mounting piece 401a and the fixing member 402 of the first base plate 401 are fastened by bolts 402a with the second support table 101b sandwiched in the front-rear direction. Thus, the first base plate 401 is fixed to the second support table 101b.

  The second base plate 403 is attached on the first base plate 401. Although not shown, the second base plate 403 is fixed to the first base plate 401 with a plurality of bolts. As shown in FIG. 8, a first reference wall 403 a rising upward is provided on the left side of the second base plate 403. A second reference wall 403 b that rises upward is provided on the right side of the second base plate 403. A slide member 407 is arranged on the second base plate 403 along the front-rear direction. Guide plates 404 and 405 are attached to the left and right sides of the slide member 407 by bolts 404a and 405a. The guide plates 404 and 405 have inclined surfaces 404c and 405c facing downward. The slide member 407 is pressed against the second base plate 403 by the inclined surfaces 404c and 405c. As a result, the play of the slide member 407 with respect to the second base plate 403 in the horizontal direction and the vertical direction is suppressed.

  The left guide plate 404 is attached along the left first reference wall 403a. The right guide plate 405 is disposed along the right second reference wall 403b. The slide member 407 is sandwiched between the left guide plate 404 and the right guide plate 405. In this embodiment, the position of the slide member 407 is adjusted by loosening the fixing bolt 405a for fixing the right guide plate 405 and adjusting the right guide plate 405 back and forth. After adjusting the position of the right guide plate 405, the fixing bolt 405a is tightened. At this time, it is necessary to appropriately adjust the distance between the guide plates 404 and 405 so that the slide member 407 is appropriately guided and moved back and forth. In this embodiment, the position of the left guide plate 404 is adjusted with respect to the first reference wall 403a. Here, the left guide plate 404 is pressed to the right by a plurality of bolts and nuts 403a1 attached to the first reference wall 403a. Here, the nut of the bolt nut 403a1 is welded to the first reference wall 403a, and the tip of the bolt of the bolt nut 403a1 is pressed against the left guide plate 404. A bolt 403a2 is attached to the left guide plate 404 and the first reference wall 403a. By tightening the bolt 403a2, the left guide plate 404 can be moved toward the first reference wall 403a. Therefore, the position of the left guide plate 404 with respect to the first reference wall 403a can be adjusted by the bolt nut 403a1 and the bolt 403a2.

  On one side (in this embodiment, the front side) of the slide member 407, a support member 406 is fixed to the second base plate 403 with bolts 406a (see FIGS. 2 and 3). An adjustment bolt 406 b extending toward the slide member 407 is attached to the support member 406. As shown in FIG. 7, the tip 406 c of the adjustment bolt 406 b is pressed against a pressing portion 407 a provided on the front side of the slide member 407. An end plate 408 is fixed to the second base plate 403 by bolts 408a on the opposite side of the slide member 407 (the rear side in this embodiment). A spring 408b is disposed between the end plate 408 and the slide member 407 in a compressed state in the front-rear direction. In this embodiment, a micrometer head is employed as the adjustment bolt 406b. For this reason, the position of the slide member 407 (in other words, the second holder 106) in the front-rear direction can be finely adjusted with high accuracy. As described above, a screw mechanism may be employed as the second position adjustment mechanism 302 that adjusts the position of the second holder 106 in the front-rear direction.

  The specific configuration example of the second position adjustment mechanism 302 that adjusts the position in the front-rear direction has been described above. The second position adjusting mechanism 302 is also provided on the driven base 109. Thereby, the position of the front-back direction of the front-end | tip of the 2nd holder 106,107 can be finely adjusted with the high precision of a micrometer unit, for example. The second position adjusting mechanism 302 may be a mechanism that adjusts the position of the second holders 106 and 107 in the front-rear direction, and is not limited to such a form.

  Next, a specific configuration example of the first direction adjustment mechanism 303 will be described. In this embodiment, a turn plate 411 and a second support member 414 are attached to the slide member 407 described above. As shown in FIG. 7, the turn plate 411 is fixed to the slide member 407 via a turn shaft 412 and a connecting bolt 413 so as to be rotatable along a horizontal surface.

  Here, the turn shaft 412 is formed of a so-called flange with a boss. As shown in FIG. 8, the turn plate 411 has a mounting hole 411a in which the turn shaft 412 is mounted. A recess 407 c into which the boss 412 b of the turn shaft 412 is fitted is formed on the upper surface of the slide member 407. Further, a bolt hole 407e into which the connecting bolt 413 is mounted is formed at the center of the recess 407c. A plurality of bolts 412 a 1 are attached to the flange portion 412 a of the turn shaft 412 in order to fix the turn shaft 412 to the turn plate 411. Bolt holes 412b1 into which the connecting bolts 413 are mounted are formed in the boss portions 412b of the turn shaft 412.

  On the front side of the turn plate 411, a second support member 414 is attached to the slide member 407 with a bolt 414a so as to face the turn plate 411. An adjustment bolt 414 b extending toward the turn plate 411 is attached to the second support member 414. The tip 414c of the adjustment bolt 414b is pressed against the front side surface 411b of the turn plate 411. Here, the axis of the adjusting bolt 414 b extends in a direction shifted from the center of the turn shaft 412 attached to the turn plate 411. Further, a spring 414d is disposed in a compressed state in the front-rear direction between the turn plate 411 and the second support member 414 at a position shifted to the opposite side from the axis of the adjustment bolt 414b (FIG. 8). reference). The spring 414d is attached to a shaft 414e attached to the second support member 414, and is fitted on a spring seat 411e formed on the front surface of the turn plate 411.

  In this embodiment, as shown in FIG. 7, the tip 414c of the adjustment bolt 414b hits the left side with respect to the center of the turn shaft 412 attached to the turn plate 411, and the spring 414d is mounted compressed on the right side. ing. When the tip 414c of the adjustment bolt 414b is extended rearward, the turn plate 411 rotates clockwise around the turn shaft 412. When the tip 414c of the adjustment bolt 414b is retracted forward, the turn plate 411 rotates counterclockwise around the turn shaft 412 by the action of the spring 414d. As shown in FIGS. 2 and 3, the pole portion 108 b of the base 108 is attached to the turn plate 411. The second holder 106 is held by a flange support portion 108 c provided on the upper portion of the pole portion 108 b of the base 108. For this reason, the orientation of the second holder 106 is adjusted. In this embodiment, a micrometer head is employed as the adjustment bolt 414b. For this reason, the direction along the horizontal surface of the turn plate 411 (in other words, the second holder 106) can be finely adjusted with high accuracy. As described above, the first direction adjusting mechanism 303 that adjusts the direction of the second holder 106 may be a screw mechanism.

  The specific configuration example of the first direction adjustment mechanism 303 that adjusts the direction along the horizontal surface of the second holder 106 has been described above. The first direction adjusting mechanism 303 is also provided on the driven base 109. Thereby, the direction along the horizontal surface of the tips of the second holders 106 and 107 can be finely adjusted with high accuracy, for example, in units of micrometers. The first direction adjusting mechanism 303 may be a mechanism that adjusts the orientation of the second holders 106 and 107 along a horizontal surface, and is not limited to such a form.

  Next, the first position adjustment mechanism 301 and the second direction adjustment mechanism 304 will be described. In this embodiment, the first position adjustment mechanism 301 and the second direction adjustment mechanism 304 are provided in a portion where the pole portion 108b and the flange support portion 108c are assembled. The first position adjustment mechanism 301 is a mechanism for adjusting the positions of the second holders 106 and 107 up and down. The second direction adjustment mechanism 304 is a mechanism for adjusting the orientation of the second holders 106 and 107 along a vertical plane.

  In this embodiment, the first position adjustment mechanism 301 is incorporated in the pair of bases 108 and 109, respectively. The first position adjustment mechanism 301 incorporated in the right base 109 has the same structure as the first position adjustment mechanism 301 incorporated in the left base 108. Here, the first position adjustment mechanism 301 is a mechanism that adjusts the position of the flange support portion 108 c that holds the first holder 102 in the vertical direction with respect to the pole portion 108 b of the base 108.

  FIG. 9 is a front view showing a state in which the flange support portion 108 c is attached to the pole portion 108 b of the base 108. FIG. 10 is a rear view of the pole portion 108b. FIG. 11 is a front view of the flange support portion 108c.

  As shown in FIGS. 2, 9, and 10, a guide portion 501 that protrudes rearward and extends in the vertical direction is provided on the upper portion of the pole portion 108 b of the base 108. . Both sides of the guide 501 are formed with stepped portions 502 and 503 that are recessed from the rear. The guide 501 is formed with a long hole 504 that is long in the vertical direction.

  As shown in FIG. 11, a groove 521 is formed along the vertical direction at the base end (the end portion disposed on the front side) of the flange support portion 108c. The width of the groove 521 is slightly wider at the top and bottom. Further, three bolt holes 531, 532 and 533 are formed in the groove 521 in the vertical direction. In addition, at the base end of the flange support portion 108c, bolt holes 522a and 523a are formed in the protrusions 522 and 523 provided on the left and right sides of the groove 521 from the upper surface of the flange support portion 108c downward. .

  As shown in FIG. 9, the flange support portion 108c is attached to the rear side of the pole portion 108b. At this time, the groove 521 of the flange support portion 108c is attached to the guide 501 of the pole portion 108b. Three bolt holes 531, 532 and 533 formed in the flange support portion 108 c are exposed in the long hole 504 of the pole portion 108 b.

  As shown in FIGS. 2 and 3, three bolts 511, 512, and 513 are attached to the pole portion 108b in the vertical direction. The shaft diameters of the three bolts 511, 512, and 513 are the same. The middle bolt 512 is threaded at the tip end portion that passes through the long hole 504 and is attached to the flange support portion 108c. The portion attached to the long hole 504 has a required thickness that can match the width of the long hole 504. Not only the portion attached to the flange support portion 108c but also the portion attached to the elongated hole 504 are threaded. Accordingly, the substantial shaft diameters of the two upper and lower bolts 511 and 513 are thinner than the lateral width of the elongated hole 504 at the portion attached to the flange support portion 108 c. The middle bolt 512 moves only up and down with respect to the long hole 504 and hardly moves left and right. The two upper and lower bolts 511 and 513 move slightly to the left and right with respect to the long hole 504.

  The three bolts 511, 512, 513 are screwed into bolt holes 531, 532, 533 formed in the flange support portion 108c. The middle bolt hole 532 formed in the flange support portion 108c is aligned with the position where the first holder 102 is mounted on the flange 216 supported by the flange support portion 108c. For this reason, the height of the middle bolt 512 matches the position where the second holder 106 is mounted.

  Further, the width of the groove 521 provided in the flange support portion 108c is slightly wider in the vertical direction. The shaft diameter of the middle bolt 512 has a required thickness that can match the lateral width of the long hole 504. The shaft diameters of the upper and lower bolts 511 and 513 are narrower than the lateral width of the long hole. Therefore, the middle bolt 512 moves only up and down with respect to the long hole 504 and hardly moves left and right. The two upper and lower bolts 511 and 513 move slightly to the left and right with respect to the long hole 504. For this reason, the flange support portion 108c can swing around the middle bolt 512 along a plane perpendicular to the pole portion 108b. When the flange support portion 108c swings along the vertical surface, the orientation of the second holder 106 also swings along the vertical surface.

  In this embodiment, a plate 506 is attached to the upper portion of the pole portion 108b with a plurality of bolts 506a. The plate 506 extends rearward so as to reach above the extension shaft 108c1 of the flange support portion 108c. Two bolts 507 and 508 are attached to the left and right sides of the plate 506 (see FIG. 2). The bolts 507 and 508 extend downward and are screwed into bolt holes 522a and 523a formed in the upper part of the extension shaft 108c1 of the flange support portion 108c, respectively. 1, 3, 5, and 9, for the sake of understanding of the first position adjustment mechanism 301, for convenience, the illustration of the bolt 506 a on the plate 506 is omitted, and the bolts 507 and 508 are illustrated. . In this embodiment, although not shown in FIG. 3, the plate 506 extends above the flange support portion 108c as shown in FIG. A screw hole is formed at a position above the flange support portion 108c. Bolts 509 are attached to the screw holes. The tip of the bolt 509 is applied to the upper portion of the flange support portion 108c.

  The height of the second holder 106 in the vertical direction and the adjustment along the vertical plane are adjusted by operating the two bolts 507 and 508 provided on the left and right sides of the plate 506. The amount of screws 507 and 508 screwed into the flange support portion 108c is adjusted. For example, when the left and right bolts 507 and 508 are tightened, the position of the flange support portion 108c with respect to the pole portion 108b increases. When the left and right bolts 507 and 508 are loosened, the position of the flange support portion 108c is lowered. When only the bolt 507 on the left side is tightened, the flange support portion 108c is tilted so that the left side becomes higher. For this reason, the second holder 106 on the left side swings downward (see FIG. 3). When the bolt 508 on the right side is tightened, the flange support portion 108c is tilted so that the right side becomes higher. For this reason, the second holder 106 on the right side swings upward (see FIG. 3). In this manner, by operating the two bolts 507 and 508, the height of the second holder 106 supported by the flange support portion 108c and the direction along the vertical plane can be adjusted. At this time, as shown in FIG. 2, when the two bolts 507 and 508 are operated with the tip of the bolt 509 pressed against the upper portion of the flange support portion 108c, the flange support portion 108c is smoothly moved. Move.

  As shown in FIGS. 1 and 9, in the right base 109, the bolt 507 is attached to the right side, and the bolt 508 is attached to the left side. Here, when the bolt 507 is loosened, the side on which the bolt 507 is mounted of the flange support portion 108c is lowered. When the bolt 508 is loosened, the side on which the bolt 508 is mounted of the flange support portion 108c is lowered. In this embodiment, as shown in FIG. 1, when the bolts 507 are loosened, the tips of the second holders 106 and 107 become higher along a vertical plane. When the bolt 508 is loosened, the tips of the second holders 106 and 107 are lowered along the vertical plane.

  In this embodiment, the three bolts 511, 512, and 513 are passed through the elongated hole 504 of the pole portion 108b of the base 108, and the vertical position of the flange support portion 108c is adjusted. At this time, the height when the second holder 106 is oriented horizontally may be adjusted with the middle bolt 512 as a reference. In this embodiment, when the two upper and lower bolts 511 and 513 are loosened and the bolt 509 is loosened and the bolts 507 and 508 are tightened together, the second holders 106 and 107 are raised. When the bolts 507 and 508 are both loosened, the second holders 106 and 107 are lowered. Then, the upper and lower two bolts 511 and 513 may be tightened with the position determined. When the upper and lower two bolts 511 and 513 are tightened, the flange support portion 108c is positioned at a predetermined position in the vertical direction with respect to the pole portion 108b. In this embodiment, a thrust bearing 516 is mounted on the two upper and lower bolts 511 and 513 between the heads of the bolts 511 and 513 and a washer attached to the pole portion 108b side. By mounting the thrust bearing 516, the tightening force acts only in the axial direction of the bolts 511 and 513, and the mounting accuracy of the flange support portion 108c is improved. For these adjustments, a screw mechanism is employed, and the position of the tip of the second holder 106 in the vertical direction and the direction along the vertical plane can be finely adjusted with high accuracy in units of micrometers. As described above, the first position adjusting mechanism 301 and the second direction adjusting mechanism 304 may each employ a screw mechanism.

  In this embodiment, the direction and the vertical position along the vertical surface of the tip of the second holder 106, 107 are adjusted by the operation of rotating the bolts 507, 508 as described above. According to such a mechanism, fine adjustment in units of micrometers can be easily performed.

  The specific configuration example of the first position adjustment mechanism 301 and the second direction adjustment mechanism 304 provided on the drive-side base 108 has been described above. The first position adjusting mechanism 301 and the second direction adjusting mechanism 304 are also provided on the driven base 109. Thereby, the direction along the perpendicular | vertical surface of the front-end | tip of the 2nd holder 106,107 can be finely adjusted with the high precision of a micrometer unit, for example. The first position adjustment mechanism 301 may be a mechanism that can adjust the position of the second holders 106 and 107 in the vertical direction, and is not limited to the above-described form. The second direction adjustment mechanism 304 may be any mechanism that can adjust the position of the second holders 106 and 107 in the vertical direction, and is not limited to the above-described form.

  For example, in the above-described embodiment, the first position adjustment mechanism 301 and the second direction adjustment mechanism 304 are realized by one mechanism. The base 108 and the base 109 are a first position adjustment mechanism 301 that adjusts the position of the second holders 106 and 107 in the vertical direction, and a second direction adjustment mechanism 304 that adjusts the direction along the vertical plane. Each may be incorporated by a separate mechanism. Further, the second position adjustment mechanism 302 and the first direction adjustment mechanism 303 described above are not limited to the above-described embodiment.

  As described above, various embodiments of the grinding machine proposed here have been described. The grinding machine proposed here is not limited to the above-described embodiments and modifications unless otherwise specified.

  For example, the structures of the first position adjustment mechanism 301, the second position adjustment mechanism 302, the first direction adjustment mechanism 303, and the second direction adjustment mechanism 304 incorporated in the grinding machine 100 are not particularly limited. It is not limited to the above. Each component of the grinding machine 100 can be variously changed.

DESCRIPTION OF SYMBOLS 100 Grinding machine 101 Base 101a 1st support table 101b 2nd support table 102,103 1st holder 104 Processing tool 104a Rotating shaft 104b Trajectory 104A of the outer periphery of the processing tool 104 1st drive device 105 Operating device 106,107 2nd holder 108, 109 Base 108a, 109a Base part 108b, 109b Pole part 108c, 109c Flange support part 110 Second drive unit 111 Interlocking mechanism 111a Drive pulley 111b Driven pulley 111b1 Boss part 111c Transmission belt 111d Tensioner 111d1 Operation shaft 201 First work 202 First 2 Workpieces 201a, 202a Shafts 201b, 202b Rubbers 211, 212 Flange 211a, 212a Recess 213 First core pushing mechanisms 214, 215 First receiving members 216, 217 2nd core pushing mechanism 219, 220 2nd receiving member 221 1st moving mechanism 222 2nd moving mechanism 301 1st position adjusting mechanism 302 2nd position adjusting mechanism 303 1st direction adjusting mechanism 304 2nd direction adjusting mechanism 401 2nd 1 base plate 402 fixing material 403 2nd base plate 404, 405 guide plate 406 1st support material 407 slide member 408 end plate 411 turn plate 412 turn shaft 413 connecting bolt 414 2nd support material 501 guide 502, 503 step 504 long hole 506 plate 507, 508 Bolt 511, 512, 513 Bolt 516 Thrust bearing 521 Groove 522, 523 Protrusion 522a, 523a Bolt hole 531, 532, 533 Bolt hole L1 First axis L2 Second axis

Claims (11)

The foundation,
A pair of first holders spaced apart along a horizontal first axis set above the base;
A cylindrical or disk-shaped machining tool with a rotation axis at the center;
A first drive device for rotating the machining tool around the rotation axis in a state where the rotation axis of the machining tool is held in parallel with the first axis;
The first drive device is configured such that a peripheral side surface of the processing tool is pressed against a side surface of the first workpiece held by the pair of first holders and moves along the side surface of the first workpiece. An operation device that moves the base relative to the first tool, and a space along a second axis that is parallel to the first axis and that is set in a machining range of the machining tool held by the operation device. A pair of second holders arranged and rotatably provided around the second axis;
A pair of bases attached to the base at intervals along the second axis and respectively holding the pair of second holders;
A second driving device for rotating one of the pair of first holders around the first axis;
A grinding machine comprising an interlocking mechanism that interlocks with the driving device and rotates one second holder of the pair of second holders around the second axis in synchronization with the one first holder. .   2. The grinding machine according to claim 1, wherein each of the pair of bases includes a first position adjustment mechanism that moves the second holder in a vertical direction with respect to the base. The first position adjustment mechanism includes a first slide mechanism and a first screw mechanism,
The first slide mechanism includes a first guide disposed in the vertical direction on the pair of bases, and a first slider that slides on the first guide,
The grinding machine according to claim 2, wherein the first screw mechanism includes a screw that adjusts a position of the first slider with respect to the first guide.   4. The pair of bases according to claim 1, wherein each of the pair of bases includes a second position adjustment mechanism that adjusts a distance between the second holder and the rotation shaft of the processing tool in a plan view. The grinding machine described. The second position adjusting mechanism includes a second slide mechanism and a second screw mechanism,
The second slide mechanism includes a second guide disposed in a direction perpendicular to the second axis in a plan view with respect to the pair of bases, and a second slider that slides on the second guide. And
The grinding machine according to claim 4, wherein the screw mechanism includes a screw for adjusting a position of the second slider with respect to the second guide.   The grinding machine according to any one of claims 1 to 5, wherein each of the pair of bases includes a first direction adjustment mechanism that adjusts a direction of the second holder along a horizontal surface. The first direction adjustment mechanism includes a first rotation mechanism and a third screw mechanism,
The first rotation mechanism has a first rotation shaft provided perpendicular to the pair of bases,
The grinding machine according to claim 6, wherein the third screw mechanism includes a screw that adjusts a direction of the first rotation shaft.
The pair of bases is
The grinding machine according to any one of claims 1 to 7, further comprising a second direction adjustment mechanism that adjusts the direction of the second holder along a vertical plane. The second direction adjustment mechanism includes a second rotation mechanism and a fourth screw mechanism,
The second rotation mechanism has a second rotation shaft provided horizontally with respect to the pair of bases,
The grinding machine according to claim 8, wherein the fourth screw mechanism includes a screw that adjusts a direction of the second rotation shaft.   The grinding machine according to any one of claims 1 to 9, further comprising a core pushing mechanism for moving the other second holder of the pair of second holders along the second axis.   The grinding machine according to claim 10, comprising a receiving member disposed below the second shaft between the pair of second holders.

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