JP5563913B2 - Sliding door upper rail cutting tool, sliding door upper rail cutting device provided with the same, and sliding door upper rail correcting method - Google Patents

Description

  The present invention relates to a tool and apparatus for cutting a sliding door upper rail that suspends a sliding door that opens and closes a passage opening of a railway vehicle so as to be slidable in the opening and closing direction.

  A passage that can be opened and closed by a sliding door is provided between a passenger room and a deck or between a deck and a unit-type toilet in a railway vehicle so that passengers can come and go. Conventionally, a sliding door structure for a railway vehicle, which has been devised for opening and closing the sliding door, has been proposed (see, for example, Patent Document 1).

  On the upper part of the sliding door, a sliding door upper rail is provided for suspending the sliding door so as to be slidable in the opening and closing direction. The sliding door upper rail includes a rail upper surface along a horizontal plane in contact with the sliding door door wheel and a pair of rail side surfaces along a vertical surface provided on both sides of the rail upper surface in a cross section perpendicular to the extending direction. ing. And it is comprised so that the sliding door connected with this door may open and close when a door moves along the extension direction of a rail upper surface.

  Here, since the sliding door upper rail is usually made of a material such as aluminum, a lot of stepped wear is generated on the rail upper surface when the door carriage moves on the rail upper surface. Such damage due to stepped wear also causes the door to fall from the upper surface of the rail, which may cause a failure in which the sliding door cannot be opened and closed.

  Therefore, in the past, when the above-mentioned step wear has occurred, after removing the interior such as the decorative panel and the unit-type toilet, further remove the sliding door upper rail and pour the molten metal into the step wear that is the damaged part. After that, the work was performed to correct the upper surface of the rail together with the metal deposit. Further, depending on the structure of the sliding door, the sliding door upper rail may not be removed from the vehicle, and in that case, the above-described depositing and correcting work is performed at the mounting position of the sliding door upper rail in the vehicle.

JP 2010-1111259 A

By the way, the above-mentioned sliding door upper rail is attached to a place where it is difficult to work on the sliding door upper rail due to the structure of the vehicle. In addition, there is a problem that much time and labor are required for the correction.
Furthermore, when depositing the damaged part of the rail upper surface, if the molten metal accidentally adheres to the side surface of the rail, it is difficult to remove the molten metal, and many operations are performed. It took time and effort.

  The present invention has been made in view of such circumstances, and the sliding door upper rail cutting tool capable of easily performing the correction operation of the sliding door upper rail, and the sliding door upper rail cutting apparatus including the same. And it aims at providing the correction method of a sliding door upper rail.

In order to solve the above problems, the present invention proposes the following means.
That is, the sliding door upper rail cutting tool according to the present invention is a sliding door upper rail cutting tool for cutting a sliding door upper rail that slidably slides the sliding door of a railway vehicle in the opening and closing direction, and is a tool body that rotates about an axis. A processing portion is provided on the outer periphery of the tip, and the processing portion extends in parallel with the axis, and cuts the upper surface of the rail of the upper sliding door rail from both ends in the axial direction of the rail cutting blade. Each extending toward the outside in the radial direction of the tool body, the first blade part having a pair of side cutting edges for cutting the rail side surface of the sliding door upper rail, and extending parallel to the axis, And a second cutting edge portion having an upper surface cutting edge for cutting the rail upper surface .

According to the sliding door upper rail cutting tool having such a feature, the rail side surface is corrected by the pair of side cutting blades while the rail upper surface is corrected by the upper surface cutting blade of the first blade portion. be able to. That is, since it has the first blade part formed according to the shape of the sliding door upper rail, even when the sliding door upper rail is attached to a place where it is difficult to work, the rail upper surface and the rail side surface Can be easily corrected.
In addition to the upper surface cutting blade for correcting the rail upper surface, the first blade portion is integrally formed with a side cutting blade for correcting the rail side surface. Even if the molten metal adheres to the metal, the deposit by the molten metal can be easily removed.
Here, the rail upper surface of the sliding door upper rail is preferably formed smoothly because the sliding door roller rolls. In this respect, according to the sliding door upper rail cutting tool of the present invention, in addition to the first cutting edge, the second cutting edge having only the upper cutting edge parallel to the axis is provided. The rail upper surface corrected by the upper surface cutting edge of the cutting edge can be further corrected by the upper surface cutting edge of the second cutting edge. This makes it possible to improve the cutting accuracy of the rail upper surface.

  Furthermore, the sliding door upper rail cutting tool according to the present invention is characterized in that a plurality of the first blade portions and the second cutting blade portions are alternately provided in the circumferential direction of the tool body.

  Accordingly, the rail upper surface can be further corrected by the second cutting edge portion after the rail upper surface is corrected by the first blade portion. That is, since the first cutting edge and the second cutting edge can be alternately corrected, the cutting accuracy of the rail upper surface can be further improved.

  Moreover, in the sliding door upper rail cutting tool which concerns on this invention, the dimension of the axial direction of the said upper surface cutting blade in the said all blade part is the said rail upper surface in the cross section orthogonal to the rail extension direction of the said sliding door upper rail. It is characterized in that it is set to be approximately the same as the dimensions.

  As a result, the cross-sectional shape of the rail upper surface and the pair of rail side surfaces and the shape of the first blade portion are substantially the same, so that it is possible to reliably perform correction according to the shape of the rail upper surface and the pair of rail side surfaces. .

  Further, in the sliding door upper rail cutting device according to the present invention, the sliding door upper rail cutting device includes any one of the above sliding door rail cutting tools and cuts the sliding door upper rail that suspends the sliding door of the railway vehicle so as to be slidable in the opening and closing direction. A tool driving unit for holding the sliding door upper rail cutting tool and rotating the sliding door upper rail cutting tool around a horizontal axis, and positioning means for positioning the tool driving unit with respect to the sliding door upper rail. A first moving means for moving the tool driving portion positioned with respect to the sliding door upper rail in a vertical direction; and the tool driving portion positioned with respect to the sliding door upper rail. And second moving means for moving in the present direction.

  According to the sliding door upper rail cutting device having such a feature, the tool driving unit holds the sliding door upper rail cutting tool, and the tool driving unit is positioned on the sliding door upper rail by the positioning unit. In this state, the first moving unit and By adjusting the relative position of the tool drive unit with respect to the sliding door upper rail by the second moving means, the sliding door upper rail cutting tool can be arranged at a location suitable for cutting the sliding door upper rail. This makes it possible to easily and appropriately correct the sliding door upper rail even when the sliding door upper rail is attached to a location where it is difficult to work on the sliding door upper rail. .

  The sliding door upper rail correction method according to the present invention is a sliding door upper rail correction method using the sliding door upper rail cutting device, and covers only the damaged portion around the damaged portion of the sliding door upper rail. It comprises a step of depositing, and a step of cutting a deposit portion in the sliding door upper rail with the sliding door upper rail cutting tool in the sliding door upper rail cutting device.

  According to the method for correcting a sliding door upper rail having such a feature, first, the damaged portion is covered with a molten metal, for example, by covering the periphery of the damaged portion, and then subjected to correction by a sliding door top rail cutting device. Thus, the damaged portion can be corrected easily and smoothly.

According to the sliding door upper rail cutting tool of the present invention, since the upper cutting edge and the pair of side cutting edges are provided, the sliding door upper rail can be easily corrected.
Further, according to the sliding door upper rail cutting device of the present invention, since the sliding door upper rail cutting tool is provided, even if the sliding door upper rail is attached to a place where the work is difficult, it is easy and appropriate. It is possible to correct the sliding door upper rail.
Furthermore, according to the sliding door upper rail correction method of the present invention, since the sliding door upper rail cutting device is used, it is possible to easily and smoothly correct the damaged portion.

It is a perspective view of the sliding door upper rail cutting device concerning an embodiment. It is a front view which shows schematic structure of a sliding door structure. It is a longitudinal cross-sectional view of a sliding door structure. It is a longitudinal cross-sectional view which shows schematic structure of the sliding door upper rail cutting device which concerns on embodiment. It is a side view of the sliding door upper rail cutting tool which concerns on embodiment. It is the figure which looked at the sliding door upper rail cutting tool which concerns on embodiment from the front end side. It is a longitudinal cross-sectional view of the principal part of the sliding door upper rail cutting device which concerns on embodiment. It is a perspective view of the jig | tool used when depositing on a sliding door upper rail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of the sliding door upper rail cutting apparatus of the present embodiment. This sliding door upper rail cutting device 100 is used to correct the sliding door upper rail 2 of a railway vehicle. First, the sliding door upper rail 2 and its peripheral structure that are to be corrected by the sliding door upper rail cutting device 100 will be described.

  As shown in FIGS. 2 and 3, the sliding door upper rail 2 is a part of the sliding door structure 1 provided at the end portion located at the longitudinal end of the railway vehicle, for example. In addition to the rail 2, the door 3 and the sliding door 4 are provided.

  The sliding door upper rail 2 is arranged so as to extend along the width direction of the railway vehicle above the passage opening of the wife. As shown in FIG. 3, the sliding door upper rail 2 is arranged along a horizontal plane and facing upward in a cross section orthogonal to the extending direction, and is connected to both sides of the rail upper surface 2 a along a vertical plane. Rail side surfaces 2b and 2c. That is, the sliding door upper rail 2 has a rectangular convex shape formed upward from the rail upper surface 2a and the pair of rail side surfaces 2b and 2c in a cross section perpendicular to the extending direction.

  The door pulley 3 is a member disposed on the sliding door upper rail 2 and includes a roller 3a configured to roll along the rail upper surface 2a as shown in FIG. At both ends of the roller 3a, a pair of flange portions 3b, 3c projecting outward in the radial direction of the roller 3a is provided. When the roller 3a rolls on the rail upper surface 2a, the pair of flange portions 3b, 3c, The roller 3a is guided by the sliding contact 3c with the rail side surfaces 2b and 2c.

  The sliding door 4 is a door member having a dimension capable of closing the passage opening of the wife, and is connected to the door pulley 3 via a bracket 4b provided at the upper end of the sliding door main body 4a. Thus, when the door 3 moves due to the rolling of the rail upper surface 2a of the roller 3a, the sliding door 4 moves along the sliding door upper rail 2 along with the movement of the door 3, that is, the opening / closing direction of the sliding door 4. Move to.

Next, the sliding door upper rail cutting apparatus 100 which corrects the sliding door upper rail 2 of the above sliding door structure 1 is demonstrated.
As shown in FIG. 4, the sliding door upper rail cutting device 100 includes a cutting device main body 30 and a sliding door upper rail cutting tool 10 attached to the cutting device main body 30. First, the configuration of the sliding door upper rail cutting tool 10 will be described.

  As shown in FIGS. 5 and 6, the sliding door upper rail cutting tool 10 includes a tool body 11 having a long shaft shape centered on the axis O, and the rear end side of the tool body 11 (FIG. 5). The left side in FIG. 5 is a shank portion 12, and the tip side (tip side in FIG. 5) of the tool body 11 is a processing portion 13.

The shank part 12 is comprised with steel materials etc., and the sliding door upper rail cutting tool 10 is fixed to the cutting device main body 30 by the said shank part 12 being hold | maintained at the holder 63 mentioned later.
The processed portion 13 is integrally formed on the tip end side of the shank portion 12, and protrudes radially outward from the outer periphery of the processed portion 13 and extends in the direction of the axis O of the processed portion 13. A plurality of cutting blade portions 14 and a plurality of second cutting blade portions 20 are provided.

  As shown in FIG. 6, the first blade portion 14 has a face facing the front side in the tool rotation direction T as a rake face 15 extending along a plane including the axis O, and is behind the tool rotation direction T. The surface facing the side is an inclined back surface 16 that gradually inclines toward the front side in the tool rotation direction T as it goes outward in the radial direction (hereinafter simply referred to as the radial direction) of the tool body 11. Further, the surface facing the radially outer side connecting the rake surface 15 and the inclined back surface 16 is the outer peripheral surface 17 of the first blade portion 14.

  This first blade 14 includes a notch 18 formed so as to be cut out in a rectangular shape from the outer peripheral surface 17 toward the inside in the radial direction across the rake face 15 and the inclined back face 16. The surface of the notch 18 that faces radially outward is a top relief surface 18a that slightly inclines radially outward as it goes forward in the tool rotation direction T. Further, the surfaces that are perpendicularly connected to both sides of the upper surface relief surface 18a in the direction of the axis O and extend outward in the radial direction are the side relief surfaces 18b and 18c, respectively.

  The cross ridge line portion between the top relief surface 18a and the rake face 15 is an upper face cutting edge 19a extending parallel to the axis O, and the cross ridge line between the side relief faces 18b and 18b and the rake face. The portions are respectively connected to both ends of the upper surface cutting edge 19a in the direction of the axis O, and are formed as a pair of side surface cutting edges 19b and 19c extending outward in the radial direction.

  In this embodiment, the dimension in the direction of the axis O of the upper surface cutting edge 19a in the first blade portion 14 is substantially the same as the dimension of the rail upper surface 2a in the cross section orthogonal to the extending direction of the sliding door upper rail 2. Is set.

  As shown in FIG. 6, in the second cutting edge portion 20, a surface facing the front side in the tool rotation direction T is a rake surface 21 extending along a plane including the axis O, and the tool rotation direction T rear The surface facing the side is an inclined back surface 22 that gradually inclines forward in the tool rotation direction T toward the outside of the tool body 11 in the radial direction (hereinafter simply referred to as the radial direction). Further, the flank of the second cutting edge portion 20 in which the diametrically outward surface connecting the rake face 21 and the inclined back surface 22 is slightly inclined outward in the radial direction toward the front side in the tool rotation direction T. 23.

  An upper cutting edge 24 extending in parallel with the axis O is formed at the intersecting ridge line portion between the rake face 21 and the flank face 23. The upper surface cutting edge 24 of the second cutting edge portion 20 is arranged in parallel with the upper surface cutting edge 19a of the first blade portion so that the positions in the radial direction coincide with each other.

  A plurality of such first blade portions 14 and second cutting blade portions 20 are alternately arranged in the circumferential direction of the tool body 11, and in the present embodiment, a plurality of them are spaced at equal intervals in the circumferential direction. Four each are arranged.

Next, the cutting device main body 30 to which such a sliding door upper rail cutting tool 10 is attached will be described with reference to FIGS. 4 and 7.
The cutting device main body 30 includes a base portion 40, positioning means 50 provided integrally with the base portion 40, a tool driving portion 60 provided on the base portion 40, a first moving means 70, and a second movement. And means 80.

  The base portion 40 is a member serving as a base located under the cutting apparatus main body 30, and the positioning means 50, the tool driving portion 60, the first moving means 70, and the second moving means 80 are provided on the base portion 40. Is provided. Further, a front plate member 41 extending in the vertical direction is provided at an end of the base portion 40 on the sliding door upper rail 2 side (right side in FIG. 4).

The positioning means 50 includes a positioning member 51, a vertical direction fixing part 54, and a horizontal direction fixing part 55.
The positioning member 51 is a metal member that is integrally fixed to the upper surface of the front plate member 41, and the front side of the positioning member 51 protrudes further to the sliding door upper rail 2 side than the front surface of the front plate member 41. The part 52 is integrally formed. The hook portion 52 has a cross-sectional shape that can be fitted to the sliding door upper rail 2. That is, the hook portion 52 is hooked to the sliding door upper rail 2 by having a tip portion bent at a right angle downward. In this way, they are fitted.

  The vertical fixing portion 54 is formed with respect to an overhanging portion 54a provided so as to protrude further forward from the front surface of the front plate member 41, and a female screw hole 54b penetrating vertically through the overhanging portion 54a. The fixing screw 54c is screwed upward from below and has an upper end that can come into contact with the sliding door upper rail 2 from below.

As shown in FIG. 7, the horizontal fixing portion 55 includes a female screw hole 55a penetrating the front plate member 41 in the front-rear direction (left-right direction in FIGS. 4 and 7), and the female screw hole 55a on the rear side (FIG. 4 and FIG. The fixing screw 55b is screwed from the left side in FIG. 7 toward the front side and has a tip that can come into contact with the sliding door upper rail 2 from the rear side. In addition, illustration of this horizontal direction fixing | fixed part 55 is abbreviate | omitted in FIG.
A plurality of the positioning members 51, the vertical direction fixing portions 54, and the horizontal direction fixing portions 55 are provided at intervals in the extending direction of the sliding door upper rail 2.

  The tool driving unit 60 is provided on the base unit 40 so as to be movable in the extending direction (rail horizontal direction) and vertical direction of the sliding door upper rail 2 via guide means such as a guide rail (not shown). A part main body 61 and a holder 63 are provided.

The drive unit main body 61 includes a spindle 62 extending in the front-rear direction, and the spindle 62 is configured to be rotationally driven by an electrical signal from a controller (not shown). Thereby, the spindle 62 rotates based on the operation of the worker.
In addition, a holder 63 having a holding hole 63a that opens toward the front is integrally fixed to the front end of the spindle 62 of the drive unit main body 61. The holding hole 63 a of the holder 63 can be fitted with the shank portion 12 of the sliding door upper rail cutting tool 10. The shank portion 12 fitted in the holding hole 63a in this way is fixed by a fixing screw (not shown) that penetrates the holding hole 63a in the vertical direction. As a result, the sliding door upper rail cutting tool 10 is firmly fixed and held by the holder 63.

  The first moving unit 70 is a mechanism for moving the tool driving unit 60 in the left-right direction of the rail, and is provided inside the base unit 40 so as to be rotatable around a vertical axis via a bearing 71a. A rotating shaft 71 projecting below the base portion 40, a first handle 72 fixed to the lower end of the rotating shaft 71, and fixed to the upper end of the rotating shaft 71, and can rotate about the vertical axis together with the rotating shaft 71. The first gear 73, the second gear 74 that rotates around the horizontal axis extending in the left-right direction of the rail with the rotation of the first gear 73, and the second gear 74. And a linear motion mechanism (not shown) made up of, for example, a ball screw mechanism that converts the rotation of the rail into a movement in the horizontal direction of the rail and transmits it to the tool drive unit 60. Thereby, the tool drive part 60 moves to the rail right-and-left direction by rotation operation of the 1st handle 72 by an operator.

  The second moving means 80 is a mechanism for moving the tool driving unit 60 in the vertical direction, and is provided so as to be rotatable around the vertical axis inside the base unit 40, and the lower end is below the base unit 40. A projecting rotary shaft 81 and a second handle 82 fixed to the lower end of the rotary shaft 71 are provided. The upper end of the rotating shaft 81 is directly or indirectly connected to the tool driving unit 60. In addition, the rotating shaft 81 has a male screw portion (not shown) formed on the outer peripheral surface of the rotating shaft 81 screwed into, for example, a female screw portion (not shown) formed on the base portion 40, and rotates. As the shaft 81 rotates, the rotary shaft 81 itself moves in the vertical direction so as to be guided by the female screw portion and the male screw portion. As a result, when the operator rotates the second handle 82, the rotary shaft 81 moves in the vertical direction, and the tool driving unit 60 connected to the upper end of the rotary shaft 81 moves in the vertical direction accordingly. Yes.

In addition to the above configuration, the cutting apparatus main body 30 of the present embodiment is provided with a cover 91 that covers the holder 63 and the upper part of the sliding door upper rail cutting tool 10 held by the holder 63. The cover 91 is formed with an opening (not shown) penetrating in the vertical direction, and a cylindrical insertion port 92 is provided in the opening. Furthermore, a handle portion 93 for an operator to carry the cutting device main body 30 is attached to the tool driving unit 60 in the cutting device main body 30.
In addition, an illumination 95 is provided behind the cover 91 and the handle portion 93, and even if natural light does not hit the sliding door upper rail 2 due to the structure of the vehicle, the illumination 95 irradiates the work, thereby improving workability. Can be made.

Next, a method for correcting the sliding door upper rail 2 using the sliding door upper rail cutting device 100 including the sliding door upper rail cutting tool 10 and the cutting device main body 30 as described above will be described.
When the sliding door 4 is opened and closed, since the door roller 3 rolls on the rail upper surface 2a of the sliding door upper rail 2, for example, stepped wear due to strong contact between the door roller 3 and the rail upper surface 2a due to vehicle vibration or the like occurs. To do. When such stepped wear is present on the rail upper surface 2a, rolling of the door pulley 3 is hindered, and as a result, smooth opening / closing operation of the sliding door 4 is hindered.

  Therefore, when the stepped wear occurs, first, depositing is performed by attaching a molten metal to the occurrence location (hereinafter referred to as a damage location). Specifically, first, as shown in FIG. 8, a jig 110 that covers the periphery of the damaged portion of the rail upper surface 2a and has an opening 111 only in a portion corresponding to the damaged portion is set. Subsequently, molten metal is dropped onto the opening 111 of the jig 110 through a tapered nozzle. Thereby, a molten metal can be appropriately made to adhere only to a damaged location, without flowing a molten metal into an unnecessary location. Thereafter, as the molten metal solidifies, a deposit is formed at the damaged portion.

Then, using the above-described sliding door upper rail cutting device 100, the vicinity of the raised portion of the sliding door upper rail 2 is corrected together with the raised portion.
When performing this correction work, first, the sliding door upper rail cutting tool 10 is held by the holder 63 of the tool driving unit 60 in the cutting apparatus main body 30 to fix the sliding door upper rail cutting tool 10 to the tool driving unit 60. Integrate. As a result, the axis O of the sliding door upper rail cutting tool 10 coincides with the rotation center of the spindle 62.

  Next, as shown in FIG. 7, the base portion 40 of the cutting device main body 30 is positioned and fixed with respect to the sliding door upper rail 2 by the positioning means 50. That is, first, the hook portion 52 is fitted to the sliding door upper rail 2 so that the hook portion 52 of the positioning member 51 contacts the rail upper surface 2a and the rail side surface 2c. Thereby, the relative position with respect to the sliding door upper rail 2 of the base part 40 is defined. Thereafter, by rotating the fixing screw 54c of the vertical direction fixing portion 54, the tip of the fixing screw 54c is brought into contact with the sliding door upper rail 2 from below. Thereby, the vertical direction position with respect to the sliding door upper rail 2 of the base part 40 is fixed. Further, by rotating the fixing screw 55b of the horizontal fixing portion 55, the tip of the fixing screw 55b is brought into contact with the sliding door upper rail 2 from the rear. Thereby, the position of the front-back direction with respect to the sliding door upper rail 2 of the base part 40 is fixed. As described above, the base portion 40 is positioned and fixed by the positioning means 50, and accordingly, the tool driving portion 60 disposed on the base portion 40 is positioned.

  Thereafter, by appropriately operating the first handle 72 of the first moving unit 70 and the second handle 82 of the second moving unit 80, the vertical and horizontal positions of the tool driving unit 60 are adjusted, and the tool driving unit 60 is adjusted. The sliding door upper rail cutting tool 10 held by the holder 63 is disposed at an appropriate position for correcting the metal bank portion and the surrounding sliding door upper rail 2.

  In this state, when the spindle 62 is rotated by driving the tool driving unit 60, the correction by the sliding door upper rail cutting tool 10 is started. During the cutting operation, the first handle 72 of the first moving means 70 and the second handle 82 of the second moving means 80 are appropriately operated so that the cutting can be performed while finely adjusting the cutting position. it can.

  Here, according to the sliding door upper rail cutting tool 10 of the present embodiment, a pair of side surface cutting blades 19b, while cutting the rail upper surface 2a by the upper surface cutting blade 19a of the first blade portion 14 at all. 19c can correct the rail side surfaces 2b and 2c. That is, since the sliding door upper rail cutting tool 10 has the first blade part 14 formed according to the shape of the sliding door upper rail 2, the sliding door upper rail 2 is attached to a place where it is difficult to perform work. Even in this case, the rail upper surface 2a and the rail side surfaces 2b, 2c can be easily corrected.

  In addition to the upper surface cutting edge 19a for correcting the rail upper surface 2a, the side surface cutting edges 19b, 19c for correcting the rail side surfaces 2b, 2c are integrally formed. Even if the molten metal has adhered to 2b and 2c, the deposit part by the said molten metal can be removed easily.

  Here, it is preferable that the rail upper surface 2a of the sliding door upper rail 2 is formed smoothly because the door 3 connected to the sliding door 4 moves. On the other hand, according to the sliding door upper rail cutting tool 10 of the present embodiment, in addition to the first blade portion 14, the second cutting blade portion 20 having only the upper surface cutting blade 24 that exists in parallel to the axis O. With this, it is possible to further correct the rail upper surface 2a that has been corrected by the upper surface cutting edge 19a of the first blade portion 14 by the upper surface cutting blade 19a of the second cutting blade portion 20. As a result, the cutting accuracy of the rail upper surface 2a can be improved.

  Furthermore, in the sliding door upper rail cutting tool 10, the first blade part 14 and the second cutting blade part 20 are alternately provided in the circumferential direction of the tool main body 11, so After cutting 2a, the rail upper surface 2a can be further cut by the second cutting edge portion 20. That is, since the first cutting edge portion 14 and the second cutting edge portion 20 can be alternately cut, the cutting accuracy of the rail upper surface 2a can be further improved.

  Further, the dimension in the axis O direction of the upper surface cutting edge 19a in the first blade part 14 is set to be substantially the same as the dimension of the rail upper surface 2a in the cross section orthogonal to the extending direction of the sliding door upper rail 2, Since the cross-sectional shape of the rail upper surface 2a and the pair of rail side surfaces 2b and 2c and the shape of the first blade portion 14 are substantially the same, it is surely corrected according to the shape of the rail upper surface 2a and the pair of rail side surfaces 2b and 2c. Can be applied.

  Further, according to the sliding door upper rail cutting apparatus 100 of the present embodiment, the tool driving unit 60 holds the sliding door upper rail cutting tool 10 and determines the relative position of the tool driving unit 60 with respect to the sliding door upper rail 2 by the positioning means 50. In this state, the first moving means 70 and the second moving means 80 adjust the relative position of the tool driving unit 60 with respect to the sliding door upper rail 2 so that the sliding door upper rail cutting tool 10 is suitable for cutting the sliding door upper rail 2. Can be placed in any place. Thus, even when the sliding door upper rail 2 is attached to a place where it is difficult to work on the sliding door upper rail 2, the sliding door upper rail 2 can be corrected easily and appropriately. It becomes possible.

  Furthermore, according to the correction method of the sliding door upper rail 2 of the present embodiment using the sliding door upper rail cutting device 100, first, the damaged portion is covered with molten metal so as to cover the periphery of the damaged portion, and then By performing the correction by the sliding door upper rail cutting device 100, the damaged portion can be corrected easily and smoothly.

  In the present embodiment, the cover 91 that covers the holder 63 and the upper part of the sliding door upper rail cutting tool 10 held by the holder 63 is attached. The chips of the sliding door upper rail 2 are not scattered. In particular, when the sliding door upper rail 2 is provided above the passage between the cabin and the deck, it is possible to prevent chips from being scattered to the seats in the cabin, which makes passengers feel uncomfortable. It can be avoided.

  Moreover, since the opening part is formed in the cover 91 and the opening part 92 is provided in this opening part, by inserting the front-end | tip of a hose of a vacuum cleaner into the said insertion hole 92 after completion | finish of cutting, a sliding door Chips near the upper rail cutting tool 10 can be removed.

  As mentioned above, although embodiment of this invention was described in detail, unless it deviates from the technical idea of this invention, it is not limited to these, A some design change etc. are possible.

  For example, in the embodiment, the positioning means 50 includes the positioning member 51, the vertical direction fixing portion 54, and the horizontal direction fixing portion 55, but the tool can be obtained by positioning the base portion 40 with respect to the sliding door upper rail 2. Any other configuration may be used as long as the relative position of the driving unit 60 with respect to the sliding door upper rail 2 can be determined.

  As for the first moving unit 70 and the second moving unit 80, other mechanisms may be employed as long as the tool driving unit 60 can be moved in the rail horizontal direction and vertical direction.

DESCRIPTION OF SYMBOLS 1 Sliding door structure 2 Sliding door upper rail 2a Rail upper surface 2b Rail side surface 2c Rail side surface 3 Door wheel 3a Roller 3b Flange part 3c Flange part 4 Sliding door 4a Sliding door main body 4b Bracket 10 Sliding door upper rail cutting tool 11 Tool main body 12 Shank part 13 Processing part 14 Cutting edge 15 Rake face 16 Inclined back face 17 Outer peripheral face 18 Notch 18a Top relief face 18b Side relief face 18c Side relief face 19a Top face cutting edge 19b Side face cutting edge 19c Side face cutting edge 20 Second cutting edge Blade portion 21 Rake surface 22 Inclined back surface 23 Relief surface 24 Cutting blade for upper surface 30 Cutting device main body 40 Base portion 41 Front plate member 50 Positioning means 51 Positioning member 52 Hook portion 54 Vertical direction fixing portion 54a Overhang portion 54b Female screw hole 54c Fixed Screw 55 Horizontal fixing portion 55a Female screw hole 55b Fixing screw 60 Tool drive portion 61 Moving part main body 62 Spindle 63 Holder 63a Holding hole 70 First moving means 71 Rotating shaft 71a Bearing 72 First handle 73 First gear 74 Second gear 80 Second moving means 81 Rotating shaft 82 Second handle 91 Cover 92 Insertion port 93 Handle part 95 Illumination 100 Sliding door rail cutting device 110 Jig 111 Opening part O Axis line T Tool rotation direction

Claims (5)

A sliding door upper rail cutting tool for cutting a sliding door upper rail that slidably slides the sliding door of a railway vehicle in the opening and closing direction,
A processing part is provided on the outer periphery of the tip of the tool body rotated around the axis,
The processed part is
The upper cutting edge that extends parallel to the axis and cuts the rail upper surface of the sliding door upper rail, and extends radially outward from the tool body from both ends in the axial direction of the upper cutting edge. A first blade portion having a pair of side cutting blades for cutting the rail side surface of the sliding door upper rail ;
A sliding door upper rail cutting tool , comprising: a second cutting edge portion extending in parallel to the axis and having a top cutting edge for cutting the rail top face. The sliding door upper rail cutting tool according to claim 1 , wherein a plurality of the first blade portions and the second cutting blade portions are alternately provided in a circumferential direction of the tool body. The dimension of the axial direction of the upper surface cutting edge in the first blade part is set to be substantially the same as the dimension of the rail upper surface in a cross section orthogonal to the extending direction of the sliding door upper rail. The sliding door upper rail cutting tool according to claim 1 or 2 . A sliding door upper rail cutting device comprising the sliding door upper rail cutting tool according to any one of claims 1 to 3 , wherein the sliding door upper rail cutting device suspends a sliding door of a railway vehicle so as to be slidable in an opening and closing direction.
A tool driving section for holding the sliding door upper rail cutting tool so that its axis is in a horizontal state and rotating it around the axis;
Positioning means for positioning the tool driving unit with respect to the sliding door upper rail;
A first moving means for moving the tool driving portion positioned with respect to the sliding door upper rail in a vertical direction;
A sliding door upper rail cutting device comprising: second moving means for moving the tool driving unit positioned with respect to the sliding door upper rail in the extending direction of the sliding door upper rail. A method for correcting a sliding door upper rail using the sliding door upper rail cutting device according to claim 4 ,
Covering the periphery of the damaged portion of the sliding door upper rail and depositing only the damaged portion;
And a step of cutting a raised metal portion in the sliding door upper rail with the sliding door upper rail cutting tool in the sliding door upper rail cutting device.

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