JP2016124035A - Slider body polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slider body polishing device which can polish a slider with a stable accuracy.SOLUTION: A slider body polishing device 100 polishes a top face of a slider 1 by a rotary polishing body 21 in such a manner that an anchor block 10 onto which the slider 1 is fixed is reciprocated in a direction orthogonal to a longer direction of the slider 1 and parallel to the top face of the slider 1, and the rotating rotary polishing body 21 is brought into contact with the top face of the slider 1 and is moved along the longer direction of the slider 1. In particular, the slider body polishing device 100 polishes the top face of the slider 1, which has a step at a boundary orthogonal to the longer direction thereof, by the rotary polishing body 21 of a cylindrical shape which rotates around an axis 21a along the longer direction of the slider 1, and therefore, the rotary polishing body 21 is also brought into contact with a boundary part of a step on a lower portion of the top surface of the slider 1 thereby enabling polishing thereof, and the whole area of the top face of the slider 1 can be suitably polished by the rotary polishing body 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ground plate body polishing apparatus for polishing a ground plate body of a current collecting boat assembled in a pantograph of a train.

At the top of the pantograph of the train, a current collector boat for drawing electric power from the overhead wire is assembled (for example, see Patent Document 1).
Since the current collecting boat is always in contact with the overhead wire (trolley wire) during train traveling, wear of the sliding plate occurs, and the scraped metal powder or the like adheres to the sliding plate body (boat body).
Therefore, maintenance has been performed in which a current collector boat is disassembled at every predetermined inspection cycle, and an operator uses a grinder to polish the surface of the sliding plate body from which the sliding plate has been removed.

JP 2001-333502 A

  However, polishing work using a vibration tool such as a grinder is not only a burden on the operator, but also because it is a manual polishing, and there is a problem that the accuracy of finishing tends to vary from worker to worker. It was.

  An object of the present invention is to provide a ground plate body polishing apparatus capable of polishing a ground plate body with stable accuracy.

In order to achieve the above object, the present invention provides:
A grinding plate body polishing apparatus for polishing the upper surface of a grinding plate body of a current collecting boat that collects electricity in contact with an overhead wire,
On the upper surface of the sliding plate body, there is a step at a boundary perpendicular to the longitudinal direction of the sliding plate body,
A sliding plate moving mechanism for reciprocating the fixing base to which the sliding plate is fixed in a direction perpendicular to the longitudinal direction of the sliding plate and parallel to the upper surface;
A cylindrical rotating abrasive body that rotates around an axis along the longitudinal direction of the sliding plate body fixed to the fixing base;
A polishing body height adjustment mechanism that adjusts the height of the rotating polishing body according to the height position of the upper surface of the sliding plate body fixed to the fixing base;
A polishing body moving mechanism for moving the rotating polishing body in contact with the upper surface of the sliding plate body along the longitudinal direction of the sliding plate body;
I was prepared to.

In the grinding plate body polishing apparatus having such a configuration, the fixed base on which the grinding plate body is fixed is reciprocated in a direction orthogonal to the longitudinal direction of the grinding plate body and parallel to the upper surface of the grinding plate body, and rotates. The rotating abrasive body is brought into contact with the upper surface of the sliding plate body and moved along the longitudinal direction of the sliding plate body, so that the sliding plate body and the rotating abrasive body are relatively moved in directions perpendicular to each other. The upper surface of the plate body can be polished with a rotating polishing body.
In particular, the grinding plate body polishing apparatus grinds the upper surface of a grinding plate body having a step at a boundary orthogonal to the longitudinal direction with a cylindrical rotary grinding body that rotates about an axis along the longitudinal direction of the grinding plate body. Therefore, the rotary polishing body can be brought into contact with the boundary portion with the step on the lower surface of the upper surface of the sliding plate body and polished, and the entire upper surface of the sliding plate body is suitably polished with the rotating polishing body. can do. For example, in a rotating abrasive body that rotates about an axis orthogonal to the longitudinal direction of the sliding plate body, unpolished portions are likely to be left at the boundary portion at a step that is one step lower.
Further, by polishing the upper surface of the sliding plate body by reciprocating the sliding plate body in a direction perpendicular to the longitudinal direction of the cylindrical rotating polishing body, the upper surface can be polished more uniformly. .
In this way, the grinding plate body polishing apparatus can suitably polish the entire upper surface of the grinding plate body with the rotary polishing body so as to relatively move the sliding plate body and the rotary polishing body in a direction perpendicular to each other. Therefore, it is possible to polish the plate body with more stable accuracy than manual polishing.

Also, preferably
A dust receiving plate provided on the lower side in the rotational direction of the rotating abrasive body at a position where the rotating abrasive body contacts the upper surface of the sliding plate body, with the plate surface facing the rotating abrasive body;
A dust collection box provided so that an upper opening is located below the plate surface of the dust receiving plate.
In the grinding plate body polishing device, the rotating abrasive body rotating in one direction grinds and scrapes the upper surface of the grinding plate body and falls on the plate surface of the dust receiving plate and is collected in the dust collection box. It is possible to reduce the amount of dust scattered around the machine and to improve the work environment.

Also, preferably
The fixing base is provided with a support body that supports the center side in the longitudinal direction of the sliding plate body so that the height can be adjusted.
The longitudinal center side of the sliding plate fixed to the fixed base can be supported by the support, and the sliding plate is prevented from bending during the polishing operation. It can be suitably polished with a rotating polishing body.

  According to the present invention, it is possible to obtain a ground plate polishing apparatus that can polish a ground plate with stable accuracy.

It is a perspective view which shows the sliding plate body grinding | polishing apparatus of this embodiment. It is a top view which shows the sliding plate body grinding | polishing apparatus of this embodiment. It is a side view which shows the sliding plate body grinding | polishing apparatus of this embodiment. It is a block diagram which shows the principal part structure of the drive system of the sliding plate body grinding | polishing apparatus of this embodiment. It is explanatory drawing which shows the fixing metal fitting of the fixing stand of a slidable board body polishing apparatus, The lock release state (a) of a fixing metal fitting and the locked state (b) of a fixing metal fitting are shown. It is explanatory drawing regarding the up-and-down movement at the time of the rotary grinding | polishing body of a grinding | polishing board body polishing apparatus grinding | polishing the upper surface of a grinding board body.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a ground plate body polishing apparatus according to the present invention will be described in detail with reference to the drawings. However, the embodiments described below are given various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiments and illustrated examples.

FIG. 1 is a perspective view showing a ground plate body polishing apparatus 100, FIG. 2 is a top view, and FIG. 3 is a side view. FIG. 4 is a block diagram showing the main configuration of the drive system of the apparatus.
The ground plate body polishing apparatus 100 is used for maintenance for polishing the upper surface of the ground plate body 1 which is a constituent member of a current collecting boat that collects electricity in contact with an overhead wire.
As shown in FIGS. 1 to 3, there is a step on the upper surface of the sliding plate body 1 at the boundary perpendicular to the longitudinal direction of the sliding plate body 1, and the longitudinal end and the center side across the boundary. The height of the upper surface is different. This sliding plate body 1 has high-order upper surfaces 1a and 1c on both ends in the longitudinal direction and a lower-order upper surface 1b on the center side in the longitudinal direction. The upper surface 1a, 1c and the lower surface 1b of the sliding plate body 1 are objects to be polished by the polishing plate body polishing apparatus 100, and the curved surface portions near the leading ends on both ends in the longitudinal direction of the sliding plate body 1 are out of the range to be polished. It is.
Further, the bottom surface of the sliding plate 1 is provided with a protrusion 2 that is used when the current collector boat is attached to the pantograph.
And the operation | work which grind | polishes the upper surface of the sliding plate body 1 is performed using the sliding plate body polishing apparatus 100 for every predetermined | prescribed inspection period.

As shown in FIGS. 1 to 3, the sliding plate body polishing apparatus 100 of the present embodiment is fixed to a fixing base 10 to which the sliding plate body 1 is fixed so that the upper surface is horizontal, and the fixing base 10. And a polishing machine 20 provided with a rotating polishing body 21 for polishing the upper surface of the ground plate body 1.
The fixed base 10 and the polishing machine 20 are disposed on the main body frame 101. The fixed base 10 is disposed on the main body frame 101 via the rail base 14.

Further, as shown in FIG. 4, the ground plate polishing apparatus 100 includes a touch panel 102 and a control unit 103 that performs overall control of each unit of the apparatus.
The touch panel 102 is, for example, an electronic device having a structure in which a touch pad is stacked on a liquid crystal panel, and has two functions of display and input, and is used as an operation panel for operating the sliding plate body polishing apparatus 100.
The control unit 103 includes, for example, a CPU (Central Processing Unit) that performs various arithmetic processes, a ROM (Read Only Memory) that stores various control programs executed by the CPU (Central Processing Unit), data, and the like. It is prepared for.
Based on a predetermined program, the control unit 103 controls operations of a first pneumatic cylinder 16, a second pneumatic cylinder 24, a drive motor 22, a travel motor 26, a limit switch 27, and the like, which will be described later, to operate the device. Then, a process of polishing the upper surface of the ground plate 1 fixed to the fixed base 10 with the rotary polishing body 21 of the polishing machine 20 is executed.

  On the fixed base 10, a pair of mounting portions 11 on which the sliding plate body 1 is placed and placed, and a support body that supports the center in the longitudinal direction of the sliding plate body 1 placed on the mounting portion 11. 12 and a fixing bracket 13 for fixing the sliding plate 1 to the fixing base 10 are provided.

The pair of placement portions 11 supports the sliding plate body 1 by abutting against the lower surfaces of both sides in the longitudinal direction of the sliding plate body 1.
The support body 12 includes a support plate 12a that contacts the lower surface of the center side in the longitudinal direction of the sliding plate body 1 and a screw body 12b that is vertically attached to the support plate 12a. By adjusting the length screwed into 10, the height of the support plate 12a can be adjusted. That is, the support body 12 can be adjusted in height so as to reliably support the center side in the longitudinal direction of the sliding plate body 1 spanned between the pair of mounting portions 11.

As shown in FIGS. 3, 5 (a) and 5 (b), the fixing bracket 13 includes a positioning bracket 13 a for aligning the protruding portions 2 provided on the lower surfaces on both sides in the longitudinal direction of the sliding plate 1, and a protruding portion. 2 and the positioning bracket 13a are aligned, the pin 13b inserted through the hole of the positioning bracket 13a communicating with the hole of the protruding portion 2, the hook 13c hooked on the pin 13b inserted through the hole, And a lever 13d for switching between tightening and loosening of the hook 13c hung on 13b.
That is, the projection 2 of the sliding plate 1 placed over the pair of placement portions 11 is aligned with the positioning fitting 13a, and hooked to the pin 13b inserted into the communicating positioning fitting 13a and the hole of the projection 2. 13c and the lever 13d is tilted so that the pin 13b is tightened with the hook 13c, so that the sliding plate body 1 can be fixed to the fixing base 10 with one touch (see FIG. 5B). If the lever 13d is raised and the pin 13b is unfastened by the hook 13c, the fixation can be released with one touch (see FIG. 5A).
Then, the upper surface of the ground plate body 1 is polished in a posture in which both sides of the ground plate body 1 are fixed to the fixing base 10 by the fixing bracket 13.

The fixed base 10 is disposed so as to be movable along a rail 15 provided on the rail base 14. Specifically, the fixed base 10 is disposed so as to be movable along a rail 15 extending in a horizontal direction perpendicular to the longitudinal direction of the sliding plate 1 fixed to the fixed base 10. The first pneumatic cylinder 16 (refer to FIG. 4) moves the rod back and forth in the extending direction of the rail 15, so that the fixed base 10 reciprocates along the rail 15.
That is, the fixed base 10 to which the sliding plate body 1 is fixed by the sliding plate moving mechanism constituted by the rail 15 on the rail base 14 and the first pneumatic cylinder 16 is orthogonal to the longitudinal direction of the sliding plate body 1. In a direction parallel to the upper surface of the sliding plate body 1.
The fixed base 10 is reciprocated at least in a range corresponding to the width of the sliding plate body 1 by a sliding plate moving mechanism (rail 15, first pneumatic cylinder 16).

  The polishing machine 20 includes a polishing head 20 a having a cylindrical rotating polishing body 21 that rotates about a shaft 21 a along the longitudinal direction of the sliding plate 1 fixed to the fixed base 10, and the polishing head 20 a to the fixed base 10. And a polishing body moving part 20b that moves along the longitudinal direction of the sliding plate 1 fixed to the surface.

A rotating polishing body 21 is disposed in front of the polishing head 20a, and a driving motor 22 (see FIG. 4) for rotating the rotating polishing body 21 is provided in the polishing head 20a. As the rotary polishing body 21, a well-known polishing wheel formed by radially bundling abrasive sheets coated with abrasive grains on the surface of a cloth base material can be used. The rotary polishing body 21 is rotated clockwise in FIG.
Further, a cover 23 that covers the rotary polishing body 21 is attached to the front surface of the polishing head 20a, and a lower portion of the rotary polishing body 21 is exposed from a lower opening of the cover 23. The lower part of the rotating polishing body 21 exposed from the lower opening of the cover 23 is located below the lower surface of the polishing head 20a.
The polishing head 20a is disposed on the side surface of the polishing body moving unit 20b so as to be vertically movable. Specifically, the second pneumatic cylinder 24 (see FIG. 4) moves the rod up and down, so that the polishing head 20a provided with the rotating polishing body 21 moves up and down.
That is, according to the height position of the upper surface of the sliding plate body 1 fixed to the fixed base 10 by the polishing body height adjusting mechanism constituted by the polishing head 20 a and the second pneumatic cylinder 24, The polishing head 20a can be moved up and down to adjust the height.
Note that the amount of advance and retreat of the rod of the second pneumatic cylinder 24 when the high-level upper surfaces 1 a and 1 c of the sliding plate body 1 are polished by the rotary polishing body 21 and the low-level upper surface 1 b of the sliding plate body 1 are polished by the rotary polishing body 21. The amount of advance and retreat of the rod of the second pneumatic cylinder 24 at the time is set in advance, and the height of the polishing head 20a is appropriately switched in the sliding plate body polishing apparatus 100 that operates based on a predetermined program. Yes.

The polishing body moving part 20b is arranged to be movable along the rail 25 provided on the main body frame 101. Specifically, the polishing body moving unit 20b is disposed so as to be movable along a rail 25 extending in parallel with the longitudinal direction of the sliding plate 1 fixed to the fixed base 10, and the traveling motor 26 (FIG. 4). Drive) is transmitted through a mechanism such as a rack and pinion, so that the polishing body moving part 20b moves along the rail 25.
That is, the polishing body moving portion 20b is moved along the rail 25 by the polishing body moving mechanism constituted by the rail 25 on the main body frame 101 and the traveling motor 26, so that the rotating polishing body 21 of the polishing head 20a is ground. It can be moved along the longitudinal direction of the plate 1. In particular, the rotating polishing body 21 that is adjusted to the height of the polishing head 20a by the polishing body height adjusting mechanism and brought into contact with the upper surface of the sliding plate body 1 is moved along the longitudinal direction of the sliding plate body 1 by the polishing body moving mechanism. Can be moved.

A plurality of limit switches 27 are provided on the main body frame 101 in the vicinity of the rails 25 at a predetermined interval along the rails 25.
The limit switch 27 detects the position of the polishing machine 20 (the polishing body moving unit 20b) that moves along the rail 25, so that the rotary polishing body moves along the longitudinal direction of the sliding plate 1 on the fixed base 10. 21 is provided to detect the position of 21.
For example, as shown in FIG. 6, the limit polishing device 27 is provided in the grinding plate body polishing apparatus 100, and in FIG. 6, the rotary polishing body 21 is positioned at the origin in order from the right limit switch 27. Being at the position of the first step of the sliding plate body 1 (head lowered position), being at the position of the second step of the sliding plate body 1 (head raised position), and folding the end portion of the sliding plate body 1 The position is detected.

A dust receiving plate 28 is provided on the front surface of the polishing body moving unit 20b. This dust receiving plate 28 is provided in a posture perpendicular to the upper surface of the main body frame 101 in a posture in which one plate surface faces the fixed base 10 on the rotary polishing body 21 side.
Specifically, the dust receiving plate 28 is provided on the lower side in the rotational direction of the rotary polishing body 21 at a position where the rotary polishing body 21 contacts the upper surface of the sliding plate body 1. 1 is provided at a position to which the dust which is polished and scraped off from the upper surface of 1. Since the dust receiving plate 28 is provided in the polishing body moving part 20b and the rotary polishing body 21 is provided in the polishing head 20a, both the dust receiving plate 28 and the rotating polishing body 21 are moved according to the movement of the polishing machine 20. It moves along the longitudinal direction of the sliding plate 1.
The main body frame 101 is provided with a dust collection box 29 below the plate surface of the dust receiving plate 28 so that the upper opening is located. The dust collection box 29 has a length over a range in which the dust receiving plate 28 moves, and collects dust falling on the plate surface of the dust receiving plate 28.

  Next, the grinding | polishing process of the sliding plate body 1 by the sliding plate body polishing apparatus 100 of this embodiment is demonstrated.

First, the sliding plate body 1 is placed over the pair of mounting portions 11, and the protruding portion 2 is restrained by the fixing bracket 13 to fix the sliding plate body 1 to the fixing base 10.
Further, by adjusting the height of the support plate 12a of the support 12 and supporting the center side in the longitudinal direction of the slide plate 1, the slide plate 1 is prevented from bending during the polishing operation.
After setting the ground plate body 1 to the fixed base 10, the touch panel 102 is operated to operate the ground plate body polishing apparatus 100.

  The activated polishing plate body polishing apparatus 100 rotates the rotating polishing body 21 by the drive motor 22 and lowers the polishing head 20a at the standby position of the origin by the second pneumatic cylinder 24, thereby moving the rotating polishing body 21 to the polishing plate body. 1 is adjusted to the height to be polished.

Next, the fixed base 10 is reciprocated left and right by the first pneumatic cylinder 16, and the polishing machine 20 is advanced by the traveling motor 26.
The rotary polishing body 21 is slidably moved on the upper surface of the sliding plate body 1 that is swung to the left and right by the reciprocating movement of the fixed base 10 as the polishing machine 20 advances, so that the entire surface of the one upper surface 1a is rotated. 21 can be polished (first polishing). The dust that the rotary polishing body 21 has polished and scraped off the upper upper surface 1 a of the sliding plate body 1 falls on the dust receiving plate 28 and is collected in the dust collection box 29.

Next, when it is detected by the limit switch 27 that the rotary polishing body 21 is at the first step of the sliding plate 1 and is in the head lowering position, the polishing head 20a is lowered by the second pneumatic cylinder 24 and rotated. The polishing body 21 is adjusted to the height at which the lower upper surface 1b of the sliding plate body 1 is polished, and the advancement of the polishing machine 20 is continued.
In this way, the entire surface of the lower upper surface 1b of the ground plate body 1 can be polished by the rotating polishing body 21 (second polishing). The dust that the rotary polishing body 21 has polished and scraped off the lower upper surface 1 b of the sliding plate body 1 is collected in the dust collection box 29.
In particular, the upper surface of the sliding plate body 1 having a step at the boundary orthogonal to the longitudinal direction is polished by a cylindrical rotary polishing body 21 that rotates about an axis 21 a along the longitudinal direction of the sliding plate body 1. As shown in FIG. 6, the rotating polishing body 21 can also be brought into contact with the boundary portion with the step on the lower upper surface 1 b for polishing, and the entire lower surface 1 b of the sliding plate body 1 can be polished by the rotating polishing body 21. Polishing can be suitably performed.

Next, when it is detected by the limit switch 27 that the rotary polishing body 21 is at the second step of the sliding plate 1 and is in the head rising position, the polishing head 20a is raised by the second pneumatic cylinder 24 and rotated. The polishing body 21 is adjusted to the height at which the upper upper surface 1c of the sliding plate body 1 is polished, and the advancement of the polishing machine 20 is continued.
Thus, the entire surface of the other upper upper surface 1c of the ground plate body 1 can be polished by the rotating polishing body 21 (third polishing). In addition, the dust which the rotary polishing body 21 grind | polished and scraped off the high-order upper surface 1c of the sliding plate body 1 is collected by the dust collection box 29. FIG.

  Next, when it is detected by the limit switch 27 that the rotary polishing body 21 is at the end folding position of the sliding plate body 1, the polishing head 20 a is raised to the standby position by the second pneumatic cylinder 24, and the traveling motor 26. To retract the polishing machine 20 back to the origin.

As described above, one set of the first polishing for polishing one high-level upper surface 1a of the sliding plate body 1, the second polishing for polishing the low-level upper surface 1b, and the third polishing for polishing the other high-level upper surface 1c. By repeating the polishing process a predetermined number of times, polishing of the upper surface of the sliding plate body 1 can be completed.
Then, after a predetermined number of polishing processes, each part of the apparatus is stopped, and the polishing work by the sliding plate body polishing apparatus 100 is finished.
Note that the polishing process may be repeated by operating the touch panel 102 a predetermined number of times, or the polishing process may be repeated a predetermined number of times by a single operation.

Also, a polishing process including a first polishing for polishing one higher upper surface 1a of the sliding plate body 1, a second polishing for polishing the lower upper surface 1b, and a third polishing for polishing the other higher upper surface 1c. Is repeated a predetermined number of times, and then the direction of the longitudinal direction of the sliding plate 1 on the fixed base 10 is reversed and the fourth polishing for polishing the other upper upper surface 1c of the sliding plate 1 and the lower upper surface 1b You may make it repeat the grinding | polishing process which makes 5 sets grinding | polishing and the 6th grinding | polishing which grind | polishes one high-order upper surface 1a 1 time.
By doing so, the upper surface of the sliding plate body 1 can be rubbed in both directions along the width direction by the rotating polishing body 21 rotating in one direction, and the upper surface of the sliding plate body 1 can be polished in a balanced manner. .

As described above, in the case of the grinding plate body polishing apparatus 100 of the present embodiment, the fixing base 10 on which the grinding plate body 1 is fixed is orthogonal to the longitudinal direction of the grinding plate body 1, and the upper surface of the grinding plate body 1 is While reciprocating in a parallel direction, the rotating polishing body 21 that rotates is brought into contact with the upper surface of the sliding plate body 1, and the rotating polishing body 21 is moved along the longitudinal direction of the sliding plate body 1, The upper surface of the ground plate body 1 can be polished with the rotating polishing body 21.
In particular, the grinding plate polishing apparatus 100 is a cylindrical rotary polishing that rotates the top surface of the grinding plate 1 having a step at a boundary orthogonal to the longitudinal direction about an axis 21 a along the longitudinal direction of the grinding plate 1. Since the polishing is performed by the body 21, the rotating polishing body 21 can be brought into contact with the stepped portion of the lower upper surface 1b that is one step lower than the upper upper surfaces 1a and 1c, and the polishing can be performed. The entire upper surface 1b can be suitably polished with the rotating polishing body 21.
In this way, the grinding plate body polishing apparatus 100 can polish both the high-order upper surfaces 1a and 1c and the lower-order upper surface 1b of the grinding plate body 1 with the rotary polishing body 21, so that the grinding plate body 1 can be stably stabilized. Can be polished.

  Further, the center side in the longitudinal direction of the sliding plate 1 fixed to the fixed base 10 is supported by the support 12 so that the sliding plate 1 is not bent during the polishing operation. The upper surface of the plate 1 can be suitably polished with the rotary polishing body 21.

  Further, in the prior art, since the operator grinds the ground plate 1 using a grinder, dust is scattered in all directions, which causes a deterioration of the working environment. The dust that the rotating polishing body 21 rotating in one direction polishes and scrapes off the upper surface of the sliding plate body 1 is collected in the dust collection box 29, so that the amount of dust scattered around the apparatus can be reduced. It is possible to improve the work environment.

  In the above embodiment, the limit switch 27 is used to detect the position of the polishing machine 20 to detect the position of the rotating polishing body 21, but the present invention is not limited to this. For example, the position of the polishing machine 20 (position of the rotating polishing body 21) may be detected using a photoelectric sensor or the like as a position detection sensor.

  Further, the upper surface of the grinding plate body 1 is not limited to being polished by the rotating polishing body 21 only in the forward path in which the polishing machine 20 moves forward. You may make it grind | polish. In this case, it is preferable to detect the position of the polishing machine 20 (position of the rotating polishing body 21) using a position detection sensor instead of the limit switch 27.

  In the above embodiment, the dust collection box 29 has a length over the range in which the dust receiving plate 28 moves. However, the present invention is not limited to this. A dust collection box 29 having a structure in which a dust collection box 29 having a size corresponding to the width of the receiving plate 28 is integrally attached to the lower portion of the dust receiving plate 28 and dust is collected while moving together with the dust receiving plate 28 may be used. .

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Ground plate body 1a One high-order upper surface 1b Low-order upper surface 1c The other high-order upper surface 2 Protrusion part 10 Fixing base 11 Mounting part 12 Support body 12a Support plate 12b Screw body 13 Fixing bracket 14 Rail base 15 Rail (slide board moving mechanism)
16 First pneumatic cylinder (sliding plate moving mechanism)
DESCRIPTION OF SYMBOLS 20 Polishing machine 20a Polishing head 20b Polishing body moving part 21 Rotating polishing body 21a Shaft 22 Drive motor 23 Cover 24 2nd pneumatic cylinder (polishing body height adjustment mechanism)
25 rail (polishing body moving mechanism)
26 Traveling motor (Abrasive moving mechanism)
27 Limit Switch 28 Dust Receiving Plate 29 Dust Collection Box 100 Grinding Plate Body Polishing Device 101 Main Body Frame 102 Touch Panel 103 Control Unit

Claims (3)

A grinding plate body polishing apparatus for polishing the upper surface of a grinding plate body of a current collecting boat that collects electricity in contact with an overhead wire,
A sliding plate moving mechanism for reciprocating the fixing base to which the sliding plate is fixed in a direction perpendicular to the longitudinal direction of the sliding plate and parallel to the upper surface;
A cylindrical rotating abrasive body that rotates around an axis along the longitudinal direction of the sliding plate body fixed to the fixing base;
A polishing body height adjustment mechanism that adjusts the height of the rotating polishing body according to the height position of the upper surface of the sliding plate body fixed to the fixing base;
A polishing body moving mechanism for moving the rotating polishing body in contact with the upper surface of the sliding plate body along the longitudinal direction of the sliding plate body;
A slip plate body polishing apparatus comprising: A dust receiving plate provided on the lower side in the rotational direction of the rotating abrasive body at a position where the rotating abrasive body contacts the upper surface of the sliding plate body, with the plate surface facing the rotating abrasive body;
A dust collection box provided so that an upper opening is located below the plate surface of the dust receiving plate;
The apparatus for polishing a ground plate according to claim 1.   The ground plate body polishing apparatus according to claim 1, wherein a support body that supports a center side in the longitudinal direction of the ground plate body is provided on the fixed base so as to be adjustable in height.

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