JP5295204B2 - Polishing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for efficiently polishing a tapered surface of an object in a short time. <P>SOLUTION: The polishing device 1 polishes the surface of a columnar or cylindrical object 50 having a tapered surface. The polishing device 1 includes: a device body 2 which is attached to the object 50 and movable in the axial direction of the object 50; a moving means 10 having a plurality of supporting rollers 12 which supports the device body 2 movably in the axial direction of the object 50 and are moving back and forth in the radial direction of the object 50; a rotating portion 25 which is disposed on the device body 2 and rotates in the circumferential direction of the object 50; a rotating means 33 which rotates the rotating portion 25 in the circumferential direction of the object 50; and a polishing portion 35 which is disposed on the rotating portion 25 and has a polishing brush 45 for polishing the surface of the object 50 and moving back and forth in the radial direction of the object 50. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a polishing apparatus, and in particular, removes dirt and the like attached to the surface of a cylindrical or cylindrical object whose surface is formed into a tapered surface, such as an existing utility pole that has been removed and collected. The present invention relates to a suitable polishing apparatus.

  Conventionally, existing utility poles that are no longer needed have been removed, recovered and moved to another location, or reused as piers or pier legs. Because of the fact that the electric poles may be contaminated on the surface by being exposed to wind and rain, or may have traces of bands attached with equipment, etc., the appearance is bad as it is, and it is difficult to reuse .

  For this reason, it is necessary to remove the dirt, etc. attached to the surface of the existing utility poles that have been removed and recovered, but such dirt, etc., on the surface of the existing utility poles must be removed manually using a grinder or the like. Because it is done, it takes time, effort, and expense. For this reason, existing utility poles that have been removed and recovered are often stored or discarded without being reused, although they have sufficient strength and durability to be reused. .

  In order to cope with the above problems, the polishing apparatus as described in Patent Documents 1 and 2 is used, and the surface of the existing utility pole that has been removed and collected is automatically polished. .

  The polishing apparatus described in Patent Document 1 is mounted on the surface of a power pole, and can move on the surface of the power pole spirally in the longitudinal direction of the power pole, and provided on the main body and can move integrally with the body. A polishing unit having a rotating polishing disk, a moving unit for moving the main body and the polishing unit along the surface of the power pole, and a driving source for the polishing unit and the moving unit. The entire surface of the electric pole can be polished by rotating the polishing disk in a spiral manner in the longitudinal direction of the electric pole while rotating the polishing disc.

  In addition, the polishing apparatus described in Patent Document 2 includes a cylindrical housing, a rotating part that is rotatably provided inside the housing via a bearing, and a diameter of the rotating part that is provided inside the rotating part. It is provided with a stretchable part that can be stretched in the direction and a polishing part that polishes the surface of the power pole provided in the stretchable part, and by moving the housing in the longitudinal direction of the power pole while rotating the rotating part, The entire surface of the utility pole can be polished.

JP 2006-231396 A JP 2006-289526 A

  However, the polishing apparatuses described in Patent Documents 1 and 2 have complicated structures such as a polishing mechanism for polishing the surface of the electric pole, and a moving mechanism for moving the polishing mechanism along the surface of the electric pole. The structure becomes complicated and the production of the device is very expensive.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a polishing apparatus that has a simple structure and can reduce manufacturing costs.

In order to solve the above problems, the present invention employs the following means.
That is, the present invention is a polishing apparatus for polishing the surface of a cylindrical or cylindrical object having a tapered surface, which is attached to the object and is movable in the axial direction of the object An apparatus main body, and a plurality of support rollers that support the apparatus main body so that the apparatus main body can move in the axial direction of the object, can move forward and backward in the radial direction of the object , and can rotate in the axial direction of the object. A moving unit that is provided in the apparatus main body and that is rotatable in the circumferential direction of the object; a rotating unit that rotates the rotating unit in the circumferential direction of the object; and the rotating unit. And a polishing part having a polishing brush capable of polishing the surface of the object and capable of advancing and retreating in the radial direction of the object, and the rotating part is provided in the apparatus main body, and the periphery of the object Rotate in direction A rotating plate, and at least a pair of the polishing portions are provided on the rotating plate so as to sandwich the object from both sides in the diameter direction, and the rotating means is a semicircular semicircular arc provided in the apparatus main body. A gear, a drive motor provided on the rotating plate, and a drive gear attached to the drive shaft of the drive motor and meshing with the semicircular gear are provided .

According to the polishing apparatus of the present invention, the apparatus main body is attached to the object, the support roller is advanced in the radial direction of the object, and the peripheral surface of the support roller is brought into contact with the surface of the object. It can be movable in the axial direction of the object. Then, the polishing brush of the polishing unit is advanced in the radial direction of the object, the polishing brush is brought into contact with the surface of the object, and in this state, the apparatus main body is moved to the object while rotating the rotating unit in the circumferential direction of the object. By moving in the axial direction, the entire surface of the object can be polished, and dirt and the like attached to the surface of the object can be removed.
Further, by rotating the rotating plate in the circumferential direction of the object, at least a pair of polishing parts provided on the rotating plate can be rotated in the circumferential direction of the object, and the polishing brush of the polishing part can be used to rotate the object. The entire surface can be polished.
In addition, by operating the drive motor and driving the drive gear to rotate, the drive gear can be rolled along the semi-circular gear, and the rotating plate can be rotated in the circumferential direction of the object. At least a pair of polishing portions provided on the rotating plate can be rotated integrally with the rotating plate, and the polishing brush of the polishing portion can be brought into contact with the entire circumference of the surface of the object.

  In the present invention, the plurality of support rollers are disposed in the apparatus main body at at least three locations at equal intervals in the circumferential direction of the object, and the plurality of support rollers are synchronized with the object. It is good also as being comprised so that it may advance / retreat to the radial direction.

  According to the polishing apparatus of the present invention, when a plurality of support rollers provided in the apparatus main body are synchronized and advanced in the radial direction of the object, when the plurality of support rollers are brought into contact with the surface of the object, The center of the apparatus main body and the axis of the object can be matched.

  Furthermore, in the present invention, any one of the plurality of support rollers may be connected to a drive motor.

  According to the polishing apparatus of the present invention, a plurality of support rollers are brought into contact with the surface of an object, and a drive motor is operated in this state to rotate and drive any one of the support rollers. It can be moved in the axial direction of the object.

  Further, in the present invention, each of the support rollers may be supported by a roller support means so as to advance and retreat in the radial direction of the object.

  According to the polishing apparatus of the present invention, the support roller can be advanced and retracted in the radial direction of the object by the operation of the roller support means.

  Furthermore, in the present invention, the roller support means is provided in the apparatus main body, and includes a support rod that can advance and retreat in the radial direction of the object, and an actuator that advances and retracts the support rod in the radial direction of the object. It is good also as the said support roller being provided rotatably at the front-end | tip of the said support rod.

  According to the polishing apparatus of the present invention, the support roller provided at the tip of the support rod can be advanced and retracted in the radial direction of the object by operating the actuator to advance and retract the support lot in the radial direction of the object. The peripheral surface of the support roller can be brought into contact with the surface of the object, or the peripheral surface of the support roller can be separated from the surface of the object.

  Furthermore, in the present invention, the roller support means is provided in the apparatus main body, and a rack that can advance and retreat in the radial direction of the object, a pinion that meshes with the rack, and a drive motor that rotationally drives the pinion. It is good also as the said support roller being rotatably provided in the front-end | tip of the said rack.

  According to the polishing apparatus of the present invention, the rack can be advanced and retracted in the radial direction of the object by operating the drive motor to rotate the pinion, and the support roller at the tip of the rack can be moved in the radial direction of the object. The peripheral surface of the support roller can be brought into contact with the peripheral surface of the object, or the peripheral surface of the support roller can be separated from the surface of the object.

  Furthermore, in this invention, it is good also as a structure which detects the diameter of the said target object with a detection means, and changes the rotational speed of the said drive motor according to the diameter which this detection means detected.

  According to the polishing apparatus of the present invention, the rotational speed of the drive motor of the rotating means is changed according to the diameter of the object detected by the detecting means, thereby providing the rotating plate regardless of the diameter of the object. The moving speed of the polishing part on the surface of the object of the polishing brush can be made constant, and the entire surface of the object can be polished with high accuracy without causing uneven polishing.

  Further, in the present invention, the polishing portion is detachably attached to the attachment portion that can advance and retract in the radial direction of the object, an actuator that causes the attachment portion to advance and retract in the radial direction of the object, and the attachment portion. The polishing brush may be detachably attached to the polishing means.

  According to the polishing apparatus of the present invention, by operating the actuator to advance and retract the attachment portion in the radial direction of the object, the polishing means attached to the attachment portion can be advanced and retracted in the radial direction of the object. The abrasive brush of the means can be brought into contact with or separated from the surface of the object.

As described above, according to the polishing apparatus of the present invention, the apparatus main body that is movable in the axial direction of the object, the rotating part that is provided in the apparatus main body and is rotatable in the circumferential direction of the object, and the rotating part A polishing part having a polishing brush for polishing the surface of the object, a moving means for moving the apparatus main body in the axial direction of the object, and a rotating means for rotating the rotating part in the circumferential direction of the object. Since it has a simple structure, it can be easily manufactured and manufacturing costs can be reduced.
In addition, since the plurality of support rollers are synchronized to advance and retreat in the radial direction of the object, when the plurality of support rollers are brought into contact with the surface of the object, the center of the apparatus body and the axis of the object And the polishing brush of the polishing part provided on the rotating plate of the rotating part can be reliably brought into contact with the entire surface of the object.
In addition, since the rotational speed of the drive motor that rotates the rotating plate is changed according to the diameter of the object, a polishing brush is applied on the surface of the object at a constant speed regardless of the diameter of the object. The entire surface of the object can be polished efficiently in a short time without causing uneven polishing.
Further, by rotating the rotating plate in the circumferential direction of the object, at least a pair of polishing portions provided so as to sandwich the object from both sides in the diameter direction on the rotating plate can be rotated in the circumferential direction of the object. Therefore, the entire surface of the object can be polished with the polishing brush of the polishing section.
Further, by operating the drive motor to rotate the drive gear, the drive gear can roll along the semi-circular gear to rotate the rotating plate in the circumferential direction of the object. The polishing brush of the polishing unit can be brought into contact with the entire circumference of the surface of the object by rotating at least a pair of the polishing units provided integrally with the rotary plate, and the entire surface of the object is polished without causing uneven polishing. can do.

It is the front view which showed one Embodiment of the grinding | polishing apparatus by this invention, Comprising: It is the schematic which showed the state in which a grinding | polishing apparatus is located in the part of the maximum diameter of a target object. It is the schematic which showed the state in which the grinding | polishing apparatus of FIG. 1 is located in the part of the minimum diameter of a target object. It is the schematic which showed the state which rotated the rotation part of the grinding | polishing apparatus of FIG. 1 90 degree | times counterclockwise. It is a side view of FIG. It is the front view seen along the AA line of FIG. 4, Comprising: It is the schematic which showed the state which matched the moving means of the grinding | polishing apparatus with the part of the largest diameter of a target object. It is the front view seen along the AA line of FIG. 4, Comprising: It is the schematic which showed the state which matched the moving means of the grinding | polishing apparatus to the part of the minimum diameter of a target object. It is the schematic which showed the modification of the moving means.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 7 show an embodiment of a polishing apparatus according to the present invention. The polishing apparatus 1 of the present embodiment is effective for polishing the surface of a columnar or cylindrical object 50 whose surface is formed into a tapered surface. In this embodiment, the polishing apparatus 1 is removed. A columnar existing electric pole in which the collected surface is formed into a tapered surface over the entire length is used as the object 50.

  Note that the object 50 is supported by support members 52 at both ends in the axial direction, for example, on the upper surface of the surface plate 51 of the polishing yard so that the axis is oriented in the horizontal direction. It is movably attached to.

  As shown in FIGS. 1 to 7, the polishing apparatus 1 according to the present embodiment is attached to an object 50 and is movable in the axial direction of the object 50, and the movement direction of the apparatus body 2. A rotating unit 25 provided on the front side or the rear side and rotatable in the circumferential direction of the object 50; and a polishing unit 35 provided on the rotating unit 25 and having a polishing brush 45 for polishing the surface of the object 50; It has.

  As shown in FIG. 4, the apparatus main body 2 includes a gate-shaped frame 3 that is open at the bottom, and a moving unit 10 that moves the frame 3 in the axial direction of the object 50. By inserting 50, it attaches to the target object 50 so that movement to an axial direction is possible.

  The frame 3 includes, for example, a gate-shaped front frame 4 and a rear frame 5 provided so as to be parallel to each other with an interval in the axial direction of the object 50, and an object between the upper part of the front frame 4 and the rear frame 5. The upper frame 6 is connected in the axial direction of 50, and the lateral frames 7 and 8 are connected between both side portions of the front frame 4 and the rear frame 5 in the axial direction of the object 50.

  The moving means 10 includes a plurality of support rollers 12 that support the frame 3 so as to be movable in the axial direction of the object 50, and roller support means that supports the support roller 12 so that it can rotate and can advance and retreat in the radial direction of the object 50 11 and a drive motor (not shown) that rotationally drives any one of the plurality of support rollers 12, and by driving one of the support rollers 12 by the operation of the drive motor, the frame 3 Can be moved in the axial direction of the object 50.

  In the present embodiment, as shown in FIGS. 5 and 6, the upper 3 and 3 on the inner side of the frame 3 are arranged so that the support rollers 12 are arranged at intervals of 120 ° in the circumferential direction of the object 50. A pair of support rollers 12 is provided at each location in the axial direction of the object 50.

  The roller support means 11 includes a linear bush 13 that is fixed to the frame 3 so that its axis is directed in the radial direction of the object 50, and a support rod 14 that is supported by the linear bush 13 so as to advance and retreat in the radial direction of the object 50. The support rod 14 includes an actuator 16 such as an air cylinder that moves the support rod 14 back and forth in the radial direction of the object 50, and a pair of support rollers 12 are rotatably supported at the tip of the support rod 14 via a roller guide 15. .

  By actuating the actuator 16 and causing the support roller 12 to advance and retreat in the radial direction of the object 50 via the support rod 14, the peripheral surface of the support roller 12 is brought into contact with the surface of the object 50 or the support roller 12. Can be separated from the surface of the object 50.

  The actuators 16 of the three roller support means 11 are controlled to operate synchronously, and the strokes of the support rods 14 are adjusted so that the advance and retreat amounts of the support rollers 12 are the same. As a result, when the actuators 16 of the three roller support means 11 are operated to advance and retract the support rods 14 to bring the support rollers 12 into contact with the surface of the object 50, The center (axis line) of the object 50 can be made coincident, and the apparatus main body 2 can be centered. Thereby, regardless of the diameter of the object 50, a polishing brush 45 of the polishing unit 35 described later can be brought into contact with the surface of the object 50 evenly from both sides in the diameter direction of the object 50.

  The roller support means 11 is not limited to the combination of the linear bush 13, the support rod 14 and the actuator 16 as described above. As shown in FIG. 7, the rack 17, the pinion 18, and the drive motor that rotates the pinion 18 ( You may comprise by the combination with (not shown).

  In this case, a guide guide 20 for guiding the rack 17 is provided on the frame 3 to guide the rack 17 so as to advance and retreat in the radial direction of the object 50, and a pinion 18 provided rotatably on the frame 3 on the rack 17. Engage. Alternatively, a rack is provided on a part of the support rod 14 supported by the linear bush 13, and a pinion provided rotatably on the frame 3 is engaged with the rack.

  Further, the pinion 18 and the rack 17 of the three roller support means 11 are controlled so as to operate synchronously, and the strokes of the racks 17 are adjusted so that the advancement and retraction amounts of the support rollers 12 are the same. The Accordingly, when the drive motor 19 of the three roller support means 11 is operated to rotate each pinion 18 to advance and retract each rack 17, each support roller 12 is brought into contact with the surface of the object 50. The center inside the frame 3 and the center (axis line) of the object 50 can be matched, and the apparatus main body 2 can be centered. Thereby, regardless of the diameter of the object 50, a polishing brush 45 of the polishing unit 35 described later can be brought into contact with the surface of the object 50 evenly from both sides in the diameter direction of the object 50.

  As means for synchronizing the pinion 18 and the rack 17 of the three roller support means 11, for example, as shown in FIG. For example, a chain 22 or a belt 24 may be hung between them.

  An electric winch (not shown) is used as a power source for the moving means 10, and the electric pinch is arranged on the extension line of the axis of the object 50 at a distance from the object 50. You may comprise so that the apparatus main body 2 may be moved to the axial direction of the target object 50 by attaching to the flame | frame 3 of the main body 2, and operating this electric punch and winding up a wire.

As shown in FIGS. 1 to 4, the rotating unit 25 is fixed to the front surface side of the front frame 4 of the frame 3 of the apparatus main body 2 so that the center coincides with the center of the frame 3, and the gear on the circumferential surface 27 is provided on the front side of the front frame 4 of the frame 3 of the apparatus body 2 (the front side of the semi-circular gear 26) so that the center coincides with the center of the frame 3. And a semicircular arc plate-shaped rotating plate 31 that can rotate within a predetermined range (within a range of about 180 °) along the semicircular gear 26 in the circumferential direction of the object 50 around the center of the frame 3. The drive motor 28 fixed to the rotating plate 31 and the disk-shaped drive gear 29 attached to the drive shaft of the drive motor 28 and provided with a gear 30 that can mesh with the gear 27 of the semicircular gear 26 on the peripheral surface. And provided in the front frame 4 And a plurality of bearings 32 that rotatably support the rotary plate 31 along the semicircular gear 26 and rotates the rotary plate 31 by the drive motor 28, the drive gear 29, and the semicircular gear 26. Means 33 are configured.
ing.

  By driving the drive motor 28 and rotating the drive gear 29, the drive gear 29 rolls in the circumferential direction on the peripheral surface of the semicircular arc gear 26, and the rotating plate 31 follows the rolling of the drive gear 29. Rotates in the circumferential direction of the semicircular gear 26, and the polishing portions 35 provided at both ends in the circumferential direction of the rotating plate 31 rotate in the circumferential direction of the semicircular gear 26 together with the rotating plate 31. As a result, both polishing portions 35 are positioned on both sides of the center line of the object 50 in the horizontal direction (see FIGS. 1 and 2), and positions are positioned on both sides of the center line of the object 50 in the vertical direction (see FIG. 1). 3), and the polishing brush 45 of the polishing unit 35 can be brought into contact with the entire peripheral surface of the object 50.

  The rotation speed of the drive motor 28 is changed according to the diameter of the target object 50, and the polishing brush 45 of the polishing unit 35 moves on the surface of the target object 50 at a constant speed regardless of the diameter of the target object 50. Is configured to move.

  This is because if the rotational speed of the drive motor 28 is constant, the moving speed of the polishing brush 45 of the polishing unit 35 becomes slower as the diameter of the object 50 becomes smaller. For example, if the maximum diameter of the object 50 is 40 cm and the minimum diameter is 20 cm, the moving distance of the polishing brush 45 of the polishing unit 35 when the diameter of the object 50 is maximum is 40π / 2 (when rotated 180 °). The moving distance of the polishing brush 45 of the polishing unit 35 at the minimum is 20π / 2 (when rotated by 180 °). The smaller the diameter of the object 50, the longer the polishing time by the polishing brush 45, and the partial This is because uneven polishing occurs and it becomes difficult to polish the entire surface of the object 50 with uniform finishing accuracy.

Specifically, assuming that the diameter of the reference object 50 is A and the rotation speed of the polishing unit 35 is R, the rotation speed of the polishing unit 35 when the diameter of the object 50 is B is
R ′ = A / B × R (1)
It becomes.
Further, if the moving distance of the polishing unit 35 is C,
B = A-2C (2)
And substituting this into equation (1),
R ′ = A / (A-2C) × R (3)
Thus, it is possible to set the rotational speed of the polishing section 35 from C (the position of the support roller 12).

  The drive motor 28 is fixed to the upper frame 6 of the frame 3 of the apparatus main body 2, and in this state, the gear 30 of the drive gear 29 attached to the drive shaft of the drive motor 28 is engaged with the gear 27 of the semicircular gear 26, The rotating plate 31 may be rotated along the semicircular gear 26 by operating the driving motor 28 and rotating the driving gear 29.

  As shown in FIGS. 1 to 4, the polishing unit 35 is supported so as to be able to advance and retract in the radial direction of the object 50 by the guide unit 36 fixed to both ends of the rotating plate 31 in the circumferential direction. An attaching portion 37, an actuator 38 such as an air cylinder that advances and retracts the attaching portion 37 in the radial direction of the object 50, and a polishing means 40 that is attached to the attaching portion 37 and has a polishing brush 45 that polishes the surface of the object 50. It consists of and.

  The polishing means 40 is, for example, a commercially available hand grinder, and includes a main body 41 with a built-in motor and a polishing brush 45 that is detachably attached to the head 42 of the main body 41. Each polishing means 40 is attached to each attachment portion 37 so that the brush 45 is located on both sides of the center line of the object 50.

  The rotational speed of the polishing brush 45 of the polishing means 40 is, for example, 5000 to 10000 r. p. The rotational speed of the polishing brush 45 of the polishing means 40 is adjusted according to the degree of contamination on the surface of the object 50. The rotation speed of the polishing brush 45 may be adjusted by operating a rotation speed adjustment switch of the main body 41 of the polishing means 40, or a commercially available speed controller is connected to the main body 31 of the polishing means 40, and the operation of this speed controller is controlled. You may make it adjust rotation speed by.

  As the polishing brush 45, for example, a brush made of steel wire, stainless steel wire or the like around a disk-like foil, or a brush made of steel wire, stainless steel wire or the like at the opening edge of the cup-like foil is used. Various commercially available polishing brushes 45 such as those implanted can be used.

  In the present embodiment, the polishing means 40 is moved forward and backward in the radial direction of the object 50 by the actuator 38 such as an air cylinder. However, instead of the actuator 38 such as an air cylinder, a rack is used. Then, using a combination of pin-on and drive motor (not shown) and operating the drive motor, the pinion is rotated and the rack is advanced and retracted to advance and retract the polishing means 40 integrally with the mounting portion 37. You may comprise as follows.

  And in order to grind | polish the surface of the target object 50 with the grinding | polishing apparatus 1 of this Embodiment comprised as mentioned above, first, as shown in FIGS. 1-4, it supports on the upper part of the surface plate 51 of a grinding | polishing yard. The object 50 is horizontally supported by the member 52, and the polishing apparatus 1 is attached to the surface of the object 50.

  Next, as shown in FIGS. 5 and 6, the actuator 16 of each roller support means 11 is operated in synchronization to advance the support rod 12 of each roller support means 11 in the radial direction of the object 50. Each support roller 12 is brought into contact with the surface of the object 50, and the center of the frame 3 of the polishing apparatus 1 is aligned with the axis of the object 50, whereby the polishing apparatus 1 is centered.

  Next, as shown in FIGS. 1 and 2, by actuating the actuator 38 of each polishing unit 35, the polishing means 40 of each polishing unit 35 is advanced in the radial direction of the object 50, and The polishing brush 45 of the polishing means 40 is brought into contact with the surface of the object 50 from both sides in the diameter direction.

  Next, the polishing means 45 of each polishing unit 35 is operated to rotate the polishing brush 45 and the drive motor 28 of the rotating unit 25 is operated to move the rotating plate 31 in the range of 180 ° in the circumferential direction of the object 50. By rotating the inside counterclockwise or clockwise (see FIG. 3), the polishing brush 45 is brought into contact with the entire circumference of the surface of the object 50 to polish the entire circumference of the surface of the object 50, and the drive motor By actuating (not shown), the polishing roller 1 is moved in the axial direction of the object 50 by rotating any one of the plurality of support rollers 12.

  In this case, by changing the rotational speed of the drive motor 28 in accordance with the diameter of the object 50, the polishing brush 45 is rotated around the surface of the object 50 at a constant speed regardless of the diameter of the object 50. The surface of the object 50 is polished while moving in the direction.

  In addition, the rotational speed of the polishing brush 45 of the polishing means 40 is changed according to the degree of contamination on the surface of the object 50 to cleanly remove the dirt adhering to the surface of the object 50.

  In this way, the entire surface of the object 50 is polished by the polishing brush 45 by moving the polishing apparatus 1 in the axial direction of the object 50 while rotating the rotating plate 31 in the circumferential direction of the object 50. be able to.

  In the polishing apparatus 1 of the present embodiment configured as described above, the moving unit 10 that moves the apparatus main body 2 in the axial direction of the object 50 and the rotating unit 25 are rotated in the circumferential direction of the object 50. Since the rotating device 33 and the polishing device 40 (commercially available hand grinder) that is detachably attached to the rotating unit 25 have a simple configuration, manufacturing costs can be reduced.

  Further, since a commercially available hand grinder is used as the polishing means 40, the polishing brush 45 as a consumable can be procured at low cost, and the running cost can be reduced.

  Furthermore, the polishing brush 45 can be moved on the surface of the object 50 at a constant speed regardless of the diameter of the object 50, so that the entire object 50 can be completely removed in a short time without causing uneven polishing. The surface can be polished, and the efficiency of the polishing operation of the surface of the object 50 can be increased.

  Further, since the actuators 16 of the three roller support means 11 are operated in synchronism and the support rollers 12 of the respective roller support means 11 are brought into contact with the surface of the object 50, the center of the frame 3 of the apparatus main body 2 is The polishing brush 45 of the polishing means 40 of the polishing unit 35 at both ends of the rotating unit 25 can be brought into contact with the surface of the target object 50 with equal pressure from both sides in the diametrical direction. And the entire surface of the object 50 can be reliably polished without causing uneven polishing.

DESCRIPTION OF SYMBOLS 1 Polishing apparatus 2 Apparatus main body 3 Frame 4 Front frame 5 Rear frame 6 Upper frame 7 Horizontal frame 8 Horizontal frame 10 Moving means 11 Roller support means 12 Support roller 13 Linear bush 14 Support rod 15 Roller guide 16 Actuator 17 Rack 18 Pinion 20 Guide Guide 21 Sprocket 22 Chain 23 Pulley 24 Belt 25 Rotating part 26 Semi-circular gear 27 Gear 28 Drive motor 29 Drive gear 30 Gear 31 Rotating plate 32 Bearing 33 Rotating means 35 Polishing part 36 Guide part 37 Mounting part 38 Actuator 40 Polishing means 41 Main body 42 Head 45 Polishing brush 50 Object 51 Surface plate 52 Support member

Claims (8)

A polishing apparatus for polishing a surface of a cylindrical or cylindrical object having a tapered surface.
An apparatus main body attached to the object and movable in the axial direction of the object;
A moving means for supporting the apparatus main body so as to be movable in the axial direction of the object, and having a plurality of support rollers capable of moving back and forth in the radial direction of the object and rotating in the axial direction of the object ;
A rotating unit provided in the apparatus main body and rotatable in a circumferential direction of the object;
Rotating means for rotating the rotating part in the circumferential direction of the object;
A polishing unit provided on the rotating unit and having a polishing brush capable of polishing the surface of the object and capable of advancing and retreating in the radial direction of the object;
The rotating unit is provided in the apparatus main body and includes a rotating plate that is rotatable in a circumferential direction of the object, and at least a pair of the polishing units sandwich the object from both sides in the diameter direction on the rotating plate. Provided in
The rotating means includes a semi-arc-shaped semi-arc gear provided in the apparatus main body, a drive motor provided on the rotating plate, and a drive gear which is attached to the drive shaft of the drive motor and meshes with the semi-arc gear. And a polishing apparatus.   The plurality of support rollers are disposed in the apparatus main body at at least three locations at equal intervals in the circumferential direction of the object, and the plurality of support rollers advance and retreat in the radial direction of the object in synchronization. The polishing apparatus according to claim 1, wherein the polishing apparatus is configured as described above.   The polishing apparatus according to claim 1, wherein any one of the plurality of support rollers is connected to a drive motor.   The polishing apparatus according to any one of claims 1 to 3, wherein each of the support rollers is supported by a roller support means so as to be able to advance and retreat in the radial direction of the object.   The roller support means includes a support rod that is provided in the apparatus main body and is capable of moving back and forth in the radial direction of the object, and an actuator that moves the support rod back and forth in the radial direction of the object. The polishing apparatus according to claim 4, wherein the support roller is rotatably provided at a tip.   The roller support means is provided in the apparatus main body, and includes a rack that can advance and retreat in the radial direction of the object, a pinion that meshes with the rack, and a drive motor that rotationally drives the pinion. The polishing apparatus according to claim 4, wherein the support roller is rotatably provided at a tip. 2. The polishing according to claim 1 , wherein the diameter of the object is detected by a detecting means, and the rotational speed of the drive motor is changed according to the diameter detected by the detecting means. apparatus. The polishing portion includes an attachment portion that can advance and retract in the radial direction of the object, an actuator that advances and retracts the attachment portion in the radial direction of the object, and a polishing means that is detachably attached to the attachment portion. The polishing apparatus according to claim 1 , wherein the polishing brush is detachably attached to the polishing means.

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