JPH10118582A - Polishing and cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the operator's labor and to ensure the execution of sure polishing and cleaning work with high efficiency by rotating a polishing pad and extruding this pad forward and supplying a polishing agent to the polishing pad with a polishing unit which is supported to a supporting frame, freely movably within a plane. SOLUTION: A polishing unit 70 is constituted by fixing and supporting a base plate 71 to an ordinate slider 55 and fixing an air motor 72 and a gear box 73 constituting rotational driving means to this base plate 71 and rotates the polishing pad 110. Next, a supporting plate 74 is fixed to the casing of this air motor 72 and an air cylinder 75 constituting a pressing means is supported at this supporting plate 74. The polishing pad 110 is extruded forward by this air cylinder 75 and the polishing agent is supplied to the polishing pad 110 from a polishing agent vessel 7 mounted freely attachably and detafchably at a vessel mounting arm 77. As a result, the operator is no more needed to support the weight of the polishing pad 110 and the need for the force to press the polishing unit 70 to the surface to be polished is eliminated. The operator's labor is thus lessened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for polishing and cleaning the surface of an outer plate, an outer wall, a window glass and the like of a railway vehicle, a shared vehicle, an aircraft, and the like.

[0002]

Problems to be Solved by the Invention The surface of an outer window glass of a vehicle which is being washed with water containing a large amount of a silicate component is stained with white and round scale-like stains of several millimeters. This scaly fouling is thought to be caused by the fact that the silicic acid component, detergent, and the like contained in the washing water remain on the glass surface, which, along with the adhesion of dust during running, erodes the window glass and gradually grows. .

[0003] Since the grown scaly soil is homogenized with the base material of the window glass, it cannot be removed by ordinary wiping cleaning using a cleaning device for cleaning the entire vehicle. In order to remove this, it is necessary to polish the surface of the window glass itself by several to several tens of microns.

Conventionally, in order to remove this scaly stain, an operator manually grinds and cleans the window glass by using a simple tool in which an abrasive drill, wool, or the like is attached to an electric drill or a disc grinder. .

[0005] However, the work of polishing and cleaning the window glass is as follows.
Not only the force for supporting the tool but also a relatively large force for pressing the tool against the window glass is required, which is a heavy labor for the worker, and the work efficiency is poor. There is also a problem that the cleaning result tends to vary depending on the skill and physical strength of the worker.

On the other hand, if a device such as a fully automatic window cleaning robot is introduced, the above-mentioned problem is solved, but the cost is naturally high. In particular, there is a certain degree of distortion and individual differences in the window glass of a vehicle, and high-precision control is required to deal with these in a fully automatic manner. In addition, window cleaning work is performed on specific service decks for the purpose of regular maintenance of railway cars, and the location of fully automatic equipment is set so as not to impede various other operations performed on the service deck. Also have restrictions.

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and provides a relatively inexpensive and compact polishing and cleaning apparatus for assisting a polishing and cleaning operation by an operator, thereby reducing the labor of the operator. It is possible to perform highly efficient and reliable polishing cleaning work.

[0008]

According to the present invention, there is provided a polishing and cleaning apparatus according to the present invention, comprising: a support frame; suction means for removably fixing the support frame to an object; A polishing unit movably supported in a plane, the polishing unit comprises a polishing pad, and a rotation driving means for rotating the polishing pad,
The polishing pad is characterized by comprising pressing means for pushing the polishing pad forward, and abrasive supply means for supplying an abrasive to the polishing pad.

Preferably, in consideration of safety, the suction cup means has a plurality of suction pads, and the plurality of suction pads are controlled by a plurality of individually operated air flow paths. Also, the air flow paths of the plurality of systems have different air pressures.

For example, a first slider movable in a first direction is supported by the support frame, and a first slider movable in a second direction perpendicular to the first direction is supported by the first slider. A second slider is supported, and the polishing unit is mounted on the second slider, preferably, the support frame is such that the first direction is horizontal and the second direction is vertical. Fixed to the object.

Further, the rotary driving means and the pressing means use compressed air as a driving source, and the pressing means has pressure adjusting means for adjusting the pressure of the compressed air to change the pressing force.

The polishing agent supply means has a polishing agent discharge port opened at the center of rotation of the polishing pad. Preferably, the rotation drive means has a hollow rotation drive shaft coaxial with the rotation axis of the polishing pad, and supplies the abrasive in a hollow portion of the rotation drive shaft while being insulated from the rotation of the rotation drive shaft. A pipe is provided, and the tip of the abrasive supply pipe serves as the abrasive discharge port.

Further, a cylindrical abrasive scattering prevention covering ring surrounding the polishing pad is provided.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall front view of a polishing and cleaning apparatus according to an embodiment of the present invention, and FIG.
3 is a bottom view of the polishing and cleaning apparatus of FIG.

This embodiment is an example in which the outer window glass of a Shinkansen vehicle is polished and cleaned.
35H x 700W (mm). As shown in FIG. 1, the polishing and cleaning apparatus 21 has a rectangular support frame 22 that is larger than the window to be cleaned and cleaned. The support frame 22 is formed by connecting and fixing upper and lower horizontal frame members 23 parallel to each other with left and right channel members 24, and a handle 25 is attached to the center of the front surface of each of the left and right channel members 24.

The support frame 22 is provided with suction means for detachably fixing the support frame 22 to an object. Three pad mounting brackets 26 are fixed to the upper and lower horizontal shaft frames 23, and suction pads 27 constituting suction cup means are fixed to the pad mounting bracket 26 by a universal joint (not shown).
Are supported so as to be tiltable in an arbitrary direction and to be adjustable in the axial direction. A suction tube (not shown) is connected to the suction pad 27, and the channel material 2
4 is connected to the flow path of the compressed air via an ejector (not shown) for generating a vacuum provided in the inside.

Suction switches 28a and 28b are attached to the left and right channel members 24 immediately above the handle 25. By operating these suction switches 28a and 28b, the air in the suction pad 27 is sucked. Sticks to target surface. Here, the connection of the piping tube of the suction pad 27 is made up of two systems of air flow paths in consideration of safety. As shown in FIG. 4 showing an explanatory view of the flow path configuration, an upper central suction pad 27b and a lower left and right suction pad 27d,
27f are connected to the same flow path, are controlled by a suction switch 28a on the left side, and have upper left and right suction pads 27a and 27c and a lower central suction pad 2a.
7e are connected to different flow paths, and are controlled by a suction switch 28b on the right side.

Therefore, even if the suction pad 27 on one system side is released due to a cutoff of the air source or the like, the other suction pad 27 is working, so that the occurrence of a fall accident of the support frame 22 can be prevented.

Further, by making the air pressures of these two systems different, one is used for low-pressure adsorption and the other is used for high-pressure adsorption. In this case, the position of the support frame 22 can be corrected while being suctioned by operating the suction pad 27 on the low pressure side first, and after the position is corrected, the suction pad 27 on the high pressure side is operated and completely fixed by high pressure suction. To do. The air flow path will be described later.

A horizontal slider 30 as a first slider is mounted on the upper and lower horizontal frames 23 so as to be movable in the horizontal direction. FIG. 5 is a front view of the horizontal axis slider,
FIG. 6 is a bottom view and FIG. 7 is a side view of the same. The horizontal axis slider 30 has a slide base 31, and roller shafts 32 are provided at four corners of the slide base 31 with nuts 3.
3 is fixed. As shown in FIG. 6, a guide roller 35 is supported on each roller shaft 32 via a bearing 34.

The guide roller 35 is made of a synthetic resin and has a flange 36 projecting from the center of the circumferential surface. on the other hand,
As shown in FIG. 7, the horizontal axis frame 23 has a substantially square cross-sectional shape, and a guide groove 37 is formed in the center of the upper and lower surfaces along the longitudinal direction. The upper and lower surfaces of the horizontal frame 23 are respectively in contact with the circumferential surfaces of the guide rollers 35, and the flanges 36 of the guide rollers 35 fit into the guide grooves 37 (FIG. 7).
reference). In this manner, the slide base 31 is supported by the horizontal frame 23 by sandwiching the horizontal frame 23 from above and below with the guide rollers 35, and the slide base 31 is rolled on the horizontal frame 23 by the guide rollers 35. Moves along the horizontal axis frame 23.

The grooves 3 are also provided on the front and rear surfaces of the horizontal axis frame 23.
8 is formed. Holes 39 are formed at the four corners and the center of the cross section. This is to reduce the weight while maintaining the strength of the horizontal shaft frame 23, and the holes 39 are formed in the above-mentioned suction pads 27. Used as an air flow path.

The four roller shafts 32 of the slide base 31
Of the two, the lower two are configured such that the support shaft for the slide base 31 and the support shaft for the guide roller 35 are slightly eccentric. That is, when the roller shaft 32 is fixed to the slide base 31, the axis of the guide roller 35 can be displaced with respect to the slide base 31 by rotating the support shaft with respect to the slide base 31. . Therefore, when the slide base 31 is attached to the horizontal frame 23, the distance between the upper and lower guide rollers 35 sandwiching the horizontal frame 23 can be finely adjusted, and the slide base 31 extends over the entire length of the horizontal frame 23. Can be moved smoothly and without delay.

As shown in FIG. 7, a support plate 40 is fixed to the slide base 31 in the middle of the roller shaft 32 by a bolt 41, and a stopper bolt 42 is screwed into a screw hole formed in the support plate 40. . A horizontal shaft stopper knob 43 is fixed to a lower portion of the stopper bolt 42, and a urging member 44 made of urethane is fixed to an upper portion of the stopper bolt 42 so as to face the horizontal shaft frame 23.

By rotating the stopper bolt 42,
The pressing member 44 at the tip approaches and separates from the horizontal frame 23. As shown in FIG. 7, the pressing member 44 is
The slide base 31 can be moved with respect to the horizontal axis frame 23 in a state away from the slide base 3. As needed,
When the stopper bolt 42 is screwed by holding the horizontal axis stopper knob 43, the pressing member 44 comes into contact with the horizontal axis frame 23, and the slide base 31 is clamped to the horizontal axis frame 23.

As shown in FIG. 6, a stand 46 carrying a vertical slide shaft 45 is removably mounted on the slide base 31. 2 on the slide base 31
The two positioning holes 47 are drilled in the stand 46 while the positioning pins 47 are fixed upright by screws, and by inserting the positioning pins 47 into the positioning holes 48, the stand 46 is moved to a predetermined position on the slide base 31. Is positioned.

At the center of the stand 46, a height adjustment handle 49 is rotatably mounted.
A screw engraved at the tip of 9 is screwed into the screw hole 50 of the slide base 31. Compression coil springs 51 are interposed between the slide base 31 and the stand 46 on both sides of the height adjustment handle 49, respectively.
6, the stand 46 is urged upward in FIG. A screw hole is formed on both sides of the stand 46 with the height adjustment handle 49 interposed therebetween, and a stopper screw 52 is screwed into the screw hole. The tip of the stopper screw 52 can be brought into contact with the upper surface of the slide base 31.

By turning the height adjustment handle 49 to move the stand 46 toward the slide base 31 against the spring force of the compression coil spring 51, the stand 46 approaches and separates from the slide base 31 (FIG. 6). The position of the stand 46 (up and down direction) can be adjusted. Also, by pressing the ends of the stopper screws 52 on both sides against the slide base 31, the stand 46 is fixed to the slide base 31 at that position.

Two holes 53 are formed in the stand 46, into which the vertical slide shaft 45 is inserted, and the vertical slide shaft 45 is fixed to the stand 46 by fixing bolts 54 shown in FIG. The vertical slide shaft 45 is made of an aluminum pipe for weight reduction, and its surface is coated with molybdenum to increase hardness.

The two horizontal axis sliders 30 including the slide base 31, the stand 46 and the like have the same configuration, and two vertical axis slide shafts 45 are attached so as to bridge them as shown in FIG.

A vertical slider 55 as a second slider is attached to the two vertical slide shafts 45 so as to be movable in the vertical direction (vertical direction in FIG. 1). FIG. 8 is a front view of the vertical slider 55. As shown in FIG. 8, the vertical axis slider 55 is positioned so as to straddle two vertical axis slide shafts 45 and is movably supported via slide bushes (not shown). By rotating the screwed stopper lever 56, the stopper can be clamped to the vertical slide shaft 45 at an arbitrary position. 2 and 3, a pair of handles 57 are attached to the vertical slider 55.

As described above, the horizontal axis slider 30 and the vertical axis slide shaft 45 can move in the horizontal direction with respect to the support frame 22, and the vertical axis slider 55 can move in the vertical direction with respect to the vertical axis slide shaft 45. , Vertical axis slider 5
By moving the handle 57 with the handle 5, the vertical slider 55 can be smoothly moved to any position in the plane of the support frame 22, and can be clamped at any position.

A polishing unit 70 is mounted on the vertical slider 55. FIG. 9 is a front view of the polishing unit, and FIG. 10 is a sectional view of a main part of the polishing unit. Polishing unit 70
Has a polishing pad 110, a rotation driving unit that rotates the polishing pad 110, a pressing unit that pushes the polishing pad 110 forward, and an abrasive supply unit that supplies an abrasive to the polishing pad 110. In FIGS. 9 and 10, the left side is the upper side of the entire apparatus due to space limitations, and the surface of the window glass G to be polished and cleaned is oriented substantially vertically.

As shown in FIG. 9, the polishing unit 70 has a substrate 71 for supporting the whole unit, and this substrate 71 is fixedly supported by the vertical slider 55. The substrate 71 has an air motor 72 and a gear box 73 constituting a rotation driving means.
Is fixed. A support plate 74 is fixed to the casing of the air motor 72, and the support plate 74 supports an air cylinder 75 constituting a pressing unit. Also, the support plate 74
The container mounting arm 77 is supported via a support rod 76, and the abrasive container 78 is detachably mounted on the container mounting arm 77. An abrasive outlet 79 is provided at a lower portion of the abrasive container 78, and when the supply 80 provided above the abrasive outlet 78 is operated, the abrasive in the abrasive container 78 is supplied to the abrasive outlet 79.
Flow down from The abrasive container 78 has a capacity of about 500 cc.
7 and used.

As shown in FIG. 10, a toothed spline nut 84 which is located in a gear box 73 fixed to a rotating shaft 81 of an air motor 72 and is supported in the gear box 73 via a bearing 83. Are engaged with the gear 82 of the air motor 72.

The air cylinder 75 moves the drive shaft 85 vertically toward and away from the surface of the window glass G. A joint block 86 is fixed to the drive shaft 85, and the hollow spline shaft 8 is mounted on the joint block 86 via a bearing 87.
8 is supported. The spline shaft 88 meshes with a toothed spline nut 84, and the rotation of the air motor 72 is transmitted to the spline shaft 88 through the gear 82 and the toothed spline nut 84.

In the hollow portion of the spline shaft 88, an abrasive supply pipe 89 constituting abrasive supply means is provided.
It is arranged in a state insulated from the rotation of. Abrasive supply pipe 8
9 has its base end screwed and fixed to the joint block 86 and communicates with a flow path 90 formed in the joint block 86. The flow path 90 of the joint block 86 communicates with an abrasive supply port 91, and the abrasive supply port 91 is connected to an abrasive container 78 shown in FIG.
And a hose (not shown).

At the tip of the spline shaft 88, a mounting bracket 1 is provided.
A disc-shaped pad mounting bracket 104 having a hole at the center is fixed via the center 01. A hook-and-loop fastener (magic tape) 109 is attached to the surface of the pad mounting bracket 104.

The polishing pad 110 has a disk shape (a donut shape) having a hole at the center, and a polishing cloth 11 made of a felt material is formed on the surface of a base material 111 made of an elastic sponge material.
2 is attached, and the hook-and-loop fastener 109 is attached to the back surface.
A hook-and-loop fastener 113 that can be detachably adhered is adhered. Polishing pad 110 is provided with surface fasteners 109 and 11.
3 and is attached to the pad mounting bracket 104, and is removed from the pad mounting bracket 104 and replaced as necessary, such as a change in the soiling state of the object to be cleaned, cleaning of the polishing pad 110 itself, and the like.

The tip of the polishing agent supply pipe 89 is connected to the spline shaft 8.
The polishing pad 8 protrudes from the tip of the polishing pad 8 and serves as a discharge port 120 for the polishing agent. A bearing bush 121 rotatably supporting the mounting bracket 101 and the abrasive supply pipe 89 is interposed between the mounting bracket 101 and the abrasive supply pipe 89, and a retaining ring 122 is provided via a V ring 102 for preventing liquid leakage.
Is prevented from falling off.

A cover mounting plate 123 is fixed to the lower surface of the gear box 73 by bolts 124, and a cylindrical cover ring 125 is fixed to the cover mounting plate 123 so as to surround the polishing pad 110. To prevent liquid leakage,
An O-ring 126 is attached to a contact portion between the cover mounting plate 123 and the cover ring 125. A seal rubber 127 is attached to the leading edge of the cover ring 125 over the entire circumference, and the seal rubber 127 abuts on the surface of the window glass G to be polished and cleaned, and is closed by the cover mounting plate 123 and the cover ring 125. The cavities are formed to prevent the abrasive from scattering to the outside. A brush or the like may be attached instead of the seal rubber 127 so that the tip of the brush abuts on the surface of the window glass G to prevent scattering.

In FIG. 10, 130 is an O-ring interposed between the spline shaft 88 and the toothed spline nut 84, and 131 is a V-shaped interposed between the toothed spline nut 84 and the cover mounting plate 123. A ring 132 is a V-ring interposed between the spline shaft 88 and the joint block 86 to prevent liquid leakage.

The lower part of the peripheral surface of the cover ring 125 (FIG. 10)
Opening on the right side) and the abrasive recovery joint 13
5 is attached. A collection hose (not shown) is connected to the abrasive collection joint 135, and the covering 1 after the operation is connected.
The abrasive remaining in 25 is collected through the collection hose. As shown in FIG. 9, a cap 136 is attached to the support plate 74 near the abrasive outlet 79, and the tip of the collection hose is connected to the cap during operation to prevent the abrasive from flowing out. An opening is also formed in the upper part (left side in FIG. 10) of the peripheral surface of the cover ring 125, and the release joint 137 is attached thereto. The release joint 137 allows air to enter and exit the cover ring 125 from above the cover ring 125.

As shown in FIG. 1, an air supply port one-touch coupler 150 is attached to the support frame 22, from which compressed air is supplied from the outside. The air supply port one-touch coupler 150 is connected to a motor rotation switch 151 via a pipe provided in the channel material 24, and the motor rotation switch 1
51 is connected to an air supply port of an air motor 72 via a spiral air tube 153.

As shown in FIG. 9, an air supply joint of the air motor 72 is connected to an air branch joint 154. Compressed air is directly supplied to the air motor 72 to drive the air motor 72, and the air branch joint 154 is formed. And is supplied to the air cylinder 75 side. The compressed air distributed to the air cylinder 75 side reaches the pressure reducing valve 156 via a pressing cylinder switch 155 provided near the handle 57 of the vertical slider 55 shown in FIG. Then, the compressed air whose pressure has been adjusted by the adjusting knob 157 is supplied to the extension side port 158 of the air cylinder 75. A speed control joint (see FIG. 11) is connected to the shortening port 159 of the air cylinder 75. A pressure gauge 160 indicates the pressure of the compressed air supplied to the air cylinder 75, and a silencer 161 reduces the exhaust noise of the air motor 72.

FIG. 11 is an air flow diagram of this device. In FIG. 11, a portion surrounded by a dashed line corresponds to the main polishing and cleaning device 21. As shown in FIG. 11, a pressure reducing valve 172 for controlling the original pressure is connected to an external compressed air line 170 via a one-touch coupler 171.
In step 2, the pressure is reduced to 6 kgf / cm 2 which is necessary for the main polishing and cleaning device 21. A piping tube 174 is connected to the pressure reducing valve 172 for controlling the source pressure via a one-touch coupler 173.
The pipe tube 174 has a length (20 to 25 m) for one vehicle depending on the purpose of use of the polishing and cleaning device 21. The tip of the piping tube 174 is connected to the air supply port one-touch coupler 150 of the polishing and cleaning device 21.

In the polishing and cleaning apparatus 21, a pipe 175 communicating with the air supply port one-touch coupler 150 branches into two branches, and one of the branches is connected to the motor rotation switch 151. The motor rotation switch 151 is a two-way valve that switches between shutoff and communication. Motor rotation switch 15
1 reaches an air branch joint 154 via a pipe 176, and one reaches an air motor 72 via a pipe 177.

The other is connected to a pressing cylinder switch 155 from the air branch joint 154 via a pipe 178. The pressing cylinder switch 155 is a four-way valve,
In the “OFF” state shown in FIG. 11, the pipe 178 is connected to the pipe 179 connected to the shortening port 159 of the air cylinder 75. A speed control joint 180 is interposed in the middle of the pipe 179. The speed control joint 180 is connected to the shortened port 159 of the air cylinder 75.
It controls the air flow rate when air is discharged from the air cylinder 75, and controls the speed when the drive shaft 85 of the air cylinder 75 extends (projects). When the pressing cylinder switch 155 is turned on, the pipe 178 is turned on.
Is connected to a pipe 181 connected to the extension side port 158 of the air cylinder 75. In the middle of the pipe 181, the pressure reducing valve 1
56 are interposed.

The other branch from the pipe 175 is further divided into two branches by a branch joint 182 and connected to suction switches 28a and 28b, respectively. Suction switch 28a
And 28b are ejectors 183a and 183b, respectively.
And its vacuum outlets 184a and 184b
Are suction pads 27b, 27d, 27f and 27, respectively.
a, 27c and 27e. Suction switch 28
Reference numerals a and 28b denote three-way valves, which block compressed air in the "off" state shown in FIG. 11, and supply compressed air to the ejectors 183a and 183b when turned on. A vacuum is generated in the ejectors 183a and 183b, and the suction pads 27b, 27d, 27f and 27a, 27
Air in c, 27e27 is sucked. Here, the generated vacuum pressures of the ejectors 183a and 183b are made different,
One system is used for low-pressure adsorption, and the other system is used for high-pressure adsorption.

The operation of the polishing and cleaning apparatus 21 will be described below. First, by holding the handle 25 of the polishing and cleaning apparatus 21, the support frame 22 is aligned with the polishing target window,
Operate the suction switches 28a and 28b to operate the suction pad 2.
The support frame 22 is fixed to the vehicle by attracting 7 to the vehicle outer plate around the window. Here, the support frame 22 can be easily and accurately positioned by sequentially performing the low-pressure suction and the high-pressure suction described above. Further, since the suction pad 27 is supported by the universal joint, it is possible to firmly adhere to the suction pad 27 by inclining according to the curved surface of the vehicle outer panel.

Next, generally, the outer plate surface of the vehicle (the suction pad 2)
Since the surface position of the window glass G to be polished and cleaned has a variation of about several millimeters with respect to the surface (the surface in contact with 7), the height adjustment handle 49 of the upper and lower horizontal axis sliders 30 is rotated to raise the height of the stand 46. Is adjusted, and when the vertical axis slider 55 is moved along the vertical axis slide shaft 45, the sealing rubber 1 at the tip of the cover ring 125 of the polishing unit 70 is used.
27 is always in contact with the surface of the window glass G.

Next, the motor rotation switch 151 is turned on, and the air motor 72 is rotated. The rotation of the air motor 72 is transmitted to the spline shaft 88, and the polishing pad 110 rotates. Incidentally, the outer diameter of the polishing pad 110 is 100 mm, and the polishing pad 110 is rotated by the air motor 72 at a peripheral speed of about 400 m / min.

Next, the supply cock 80 of the abrasive container 78 is opened and closed to supply an appropriate amount of the abrasive. The abrasive flows out from an ejection port 120 located at the center of the polishing pad 110 through an abrasive supply pipe 89 on the inner side of the spline shaft 88, and is scattered from the center to the outer peripheral portion by the rotating polishing pad 110. Thus, by supplying the polishing agent from the center of the rotating polishing pad 110, the polishing agent can be efficiently dispersed on the surface to be polished.

Here, in this apparatus, an abrasive supply pipe 89 is provided inside the rotating spline shaft 88 in a state insulated from the rotation of the spline shaft 88 so that the abrasive is supplied through the inside of the abrasive supply pipe 89. ing. That is, since the abrasive supply pipe 89 does not rotate even when the spline shaft 88 rotates, the abrasive does not contact the rotating part until it reaches the discharge port 120. When the abrasive touches the rotating part of the machine in this type of equipment, the rotating part is shaved by the abrasive and wears out in a short time, so there is a disadvantage that parts need to be replaced. Thus, such an adverse effect can be eliminated.

Next, it was confirmed that there was no leakage of the abrasive,
The pressing cylinder switch 155 is turned on, and the air cylinder 75 is operated to push the polishing pad 110 forward and press it against the surface of the window glass G. Here, the air pressure supplied to the air cylinder 75 is adjusted in advance by operating the adjustment knob 157 of the pressure reducing valve 156 while watching the pressure gauge 160 to adjust the compressed air pressure to about 2 kgf / cm 2. By adjusting the pressure, the pressing force of the polishing pad 110 is reduced to 10
It can be changed to about kgf to 30 kgf. This pressing force is appropriately determined according to the degree and type of contamination of the window glass G.

When the operator moves the polishing unit 70 with the handle 57, the surface of the window glass G is polished and cleaned. Polishing is performed, for example, starting from the upper left corner of the window glass G, moving rightward, and polishing the polishing pad 110 at the right end.
Is moved downward, and then leftward, and this reciprocating operation is repeated. When the lowermost position is reached, one round of the periphery is finally completed. The vertical slider 5 supporting the polishing unit 70 during the movement of the polishing unit 70
5 can move smoothly within the plane of the support frame 22, and the pressing force against the window glass G is an air cylinder 75.
, The work does not require a large force, and the work can be performed with high efficiency.

When the polishing unit 70 is moved in the left and right direction, the vertical axis slider 55 is clamped to the vertical axis slide shaft 45 by the stopper lever 56 to limit the vertical movement, so that the work can be performed more stably. Is possible.

That is, in this apparatus, the horizontal axis slider 30 is supported on the support frame 22 so as to be movable in the horizontal direction (first direction), and the vertical axis is movable on the horizontal axis slider 30 in the vertical direction (second direction). The shaft slider 55 is supported.
5 is equipped with a polishing unit 70. Therefore, the support frame 22 is fixed to a substantially vertical target surface, and the vertical
If the clamp 5 is clamped so as not to move in the vertical direction, the vertical axis slider 55 and the polishing unit 70 do not drop even if not supported by the operator. In this state, the operator sets the polishing unit 7
If 0 is moved right and left, the work can be performed with almost no resistance.

The surface of the window glass G is not a straight flat surface but has small irregularities and undulations. In the present apparatus, the polishing pad 110 elastically deforms following the irregularities and undulations of the window glass G, so that the polishing pad 110 can be constantly pressed against the surface of the window glass G with an even force over the entire surface. Therefore, the polishing unit 70 is connected to the support frame 22.
, The entire area of the window glass G can be polished uniformly.

In the polishing and cleaning apparatus 21, the stand 46 carrying the vertical axis slider 55 and the polishing unit 70 can be easily attached to and detached from the slide base 31 of the horizontal axis slider 30 by using the positioning pins 47. By disassembling them, they can be reduced in weight, reduced in size, transported, stored, etc., and are easy to handle.

In the above description, an example has been shown in which the present invention is configured to polish and clean the outer window glass of a Shinkansen vehicle. However, the object of polishing and cleaning of the present invention is not limited to this. Needless to say. The size of the support frame, the specifications of the polishing unit, and the like are appropriately selected according to the target polishing and cleaning surface.

In the above example, the first direction is the horizontal direction and the second direction is the vertical direction. However, the configuration for moving the polishing unit 70 in the plane of the support frame 22 is not limited to this. For example, the first direction may be the vertical direction, the second direction may be the horizontal direction, or a coordinate system other than the orthogonal coordinate system may be used.

[0063]

As described above, according to the present invention, there is provided a relatively inexpensive and compact polishing and cleaning apparatus for assisting a polishing and cleaning operation by an operator, and the operator does not need to support the weight of the polishing unit. In addition, since a force for pressing the polishing unit against the surface to be polished is not required, the labor of the operator is reduced, and a highly efficient and reliable polishing cleaning operation can be performed.

[Brief description of the drawings]

FIG. 1 is an overall front view of a polishing and cleaning apparatus according to an example of an embodiment of the present invention.

FIG. 2 is a sectional view taken in the direction of arrow A in FIG.

FIG. 3 is a bottom view of the polishing and cleaning device of FIG. 1;

FIG. 4 is an explanatory diagram of a flow path configuration of a suction pad of the present apparatus.

FIG. 5 is a front view of a horizontal axis slider of the apparatus.

FIG. 6 is a bottom view of a horizontal axis slider of the present apparatus.

FIG. 7 is a side view of a horizontal axis slider of the present apparatus.

FIG. 8 is a front view of a vertical slider of the present apparatus.

FIG. 9 is a front view of a polishing unit of the present apparatus.

FIG. 10 is a sectional view of a main part of a polishing unit of the present apparatus.

FIG. 11 is an air flow path diagram of the present apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Polishing and cleaning apparatus 22 Support frame 23 Horizontal axis frame 24 Channel material 25 Handle 27 Suction pad 28a, 28b Suction switch 30 Horizontal axis slider 31 Slide base 32 Roller axis 35 Guide roller 36 Flange 37 Guide groove 42 Stopper bolt 43 Horizontal axis Stopper knob 44 Pressing member 45 Vertical slide shaft 46 Stand 47 Positioning pin 48 Positioning hole 49 Height adjustment handle 50 Screw hole 51 Compression coil spring 52 Stopper screw 54 Fixing bolt 55 Vertical axis slider 56 Stopper lever 57 Handle 70 Polishing unit 71 Substrate 72 Air motor 73 Gear box 74 Support plate 75 Air cylinder 77 Container mounting arm 78 Abrasive container 79 Abrasive outlet 80 Supply cock 81 Rotary shaft 82 Gear 84 Toothed spline nut 85 Drive shaft 86 Coupling block 88 Spline shaft 89 Abrasive supply pipe 91 Abrasive supply port 104 Pad mounting bracket 109 Surface fastener 110 Polishing pad 111 Base material 112 Polishing cloth 113 Surface fastener 120 Discharge port 121 Bearing bush 123 Cover mounting plate 125 Cover Ring 127 Seal rubber 135 Abrasive recovery joint 136 Cap 137 Release joint 150 One-touch coupler 151 Motor rotation switch 153 Spiral tube 155 Press cylinder switch 156 Pressure reducing valve 157 Adjustment knob 158 Extension port 159 Reducing port 160 Pressure gauge 161 Muffler 161 Silencer Compressed air line 171 One-touch coupler 172 Pressure reducing valve 173 One-touch coupler 180 Control joint 183a, 183b Eject 184a, 184b vacuum outlet

Claims (10)

[Claims] 1. A polishing apparatus, comprising: a support frame; a suction unit for detachably fixing the support frame to an object; and a polishing unit movably supported on the support frame in a plane. A polishing and cleaning apparatus comprising: a polishing pad; rotation driving means for rotating the polishing pad; pressing means for pushing the polishing pad forward; and abrasive supply means for supplying an abrasive to the polishing pad. . 2. The polishing apparatus according to claim 1, wherein said suction means has a plurality of suction pads, and said plurality of suction pads are controlled by a plurality of individually operated air flow paths. Cleaning device. 3. The polishing and cleaning apparatus according to claim 2, wherein said plurality of air flow paths have different air pressures. 4. A first slider movably in a first direction is supported by the support frame, and the first slider is movably movable in a second direction perpendicular to the first direction. The polishing and cleaning apparatus according to claim 1, wherein a second slider is supported, and the polishing unit is mounted on the second slider. 5. The polishing and cleaning apparatus according to claim 4, wherein the support frame is fixed to an object such that the first direction is a horizontal direction and the second direction is a vertical direction. 6. The rotation driving means and the pressing means,
The polishing and cleaning apparatus according to claim 1, wherein the driving source is compressed air. 7. The polishing and cleaning apparatus according to claim 6, wherein said pressing means has pressure adjusting means for adjusting the pressure of the compressed air to change the pressing force. 8. The polishing and cleaning apparatus according to claim 1, wherein said polishing agent supply means has a polishing agent discharge port opened at a rotation center portion of said polishing pad. 9. The rotary driving means has a hollow rotary drive shaft coaxial with the rotary axis of the polishing pad, and a polishing agent is provided in a hollow portion of the rotary drive shaft while being insulated from the rotation of the rotary drive shaft. 9. The polishing and cleaning apparatus according to claim 8, wherein a supply pipe is provided, and a tip of the abrasive supply pipe is the abrasive discharge port. 10. The polishing and cleaning apparatus according to claim 1, further comprising a cylindrical abrasive scattering prevention covering surrounding the polishing pad.