JP4293576B2 - Paint base finishing equipment for car body skins, etc. - Google Patents

Description

[0001]
The present invention is a railway vehicle, the vehicle body outer panel such as a bus, other putty coated surface, i.e., to finish up equipment paint base.
[0002]
[Prior art]
Conventionally, for example, railcars, buses and other vehicle body skins have a beautiful appearance and are coated with a putty for smoothing the surface by applying primer to the steel skin to prevent corrosion. In addition, surfacer coating and top coating are applied.
[0003]
The primer coating, the surfacer coating, and the top coating are usually performed by using a spray, but the putty coating as the coating ground treatment is a pressure film of 1 to 10 mm. Then, using a sander, the putty-coated surface is polished smoothly.
[0004]
Conventionally, the polishing operation of the putty-coated surface requires skill and the operator has to carry a heavy hand disc sander in his / her hand. However, the work environment is poor due to heavy labor and generation of dust. However, problems such as extremely poor workability remained.
[0005]
[Problems to be solved by the invention]
In view of the above circumstances, the present invention can efficiently perform the polishing operation of the putty-coated surface by a simple operation without requiring skill, freeing workers from heavy labor, and further improving the working environment. an object of the present invention is to provide a coating base finish up equipment which aimed.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, a support plate that is erected on a traveling carriage is provided with a support plate that can be moved up and down, advanced and returned, and an inclination angle can be controlled. Parallel horizontal rods are protruded and fixed on both sides of the front surface of the support plate, and a rectangular frame is provided between the tips of the parallel horizontal rods so as to swing back and forth. A rotating disk sander (hereinafter simply referred to as “disk” And a transmission unit that constitutes the drive unit thereof is provided so as to swing in the left-right direction, and the rear end portion of the transmission unit is held from four sides by four springs with adjustable tension. It is characterized by that.
[0007]
According to the apparatus of the first aspect, the disc sander is caused to follow the curved surface or the inclined surface of the putty-coated surface, and further, the traveling of the traveling carriage and the disc sander are pressed and raised / lowered on the putty-coated surface. Polishing a wide range of putty-coated surfaces can be performed quickly.
[0011]
In the embodiment of the present invention shown in claim 2 , the basic technical idea is the same as that of claim 1 , but a plurality of disk sanders are provided. That, is characterized in that a plurality of disk sander in the traveling direction and parallel and the same direction of the traveling carriage. According to the second aspect of the present invention, it is possible to perform continuous work by using the disk sander in the traveling direction forward of the traveling carriage for roughing, and using the disk sander behind the traveling carriage in the traveling direction for finishing. The quality can be improved.
[0013]
One form of embodiment of the invention shown in claim 3, in coating base finishing device of the vehicle body outer panels and the like of claim 1 or 2, characterized in that the disk sander to have a polishing powder dust collector. According to the third aspect , the work environment can be improved.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing the state of use of a paint base finishing apparatus for a vehicle body outer plate or the like according to the present invention, FIG. 2 is a perspective view of a disk sander holding part of the paint base finishing device for a vehicle body outer plate or the like according to the present invention, and FIG. FIG. 4 is a partial cross-sectional right side view of a disk sander holding part of a paint base finishing device such as a car body outer plate shown in FIG. 2, and FIG. FIG. 5 is an explanatory view showing the lifting and lowering structure of the support plate portion and the advancing / returning structure. FIG. 6 is a sectional view of a main part of a gear sander as one embodiment of the disk sander. FIG. 8 is a partial cross-sectional view showing a polishing dust collecting device in the double action sander shown in FIG.
[0015]
In FIG. 1, T is a railway vehicle in which a body surface plate is provided with a putty-coated surface P following primer coating, and 1 is a coating ground finishing device for a body surface plate or the like according to the present invention.
[0016]
In FIG. 1, the painting ground finishing devices 1, 1 such as the vehicle body outer plate of the present invention are arranged on both sides of the railway vehicle T moved on the pull-in track 2, and the vehicle body outer plate and the like. The coating ground finishing devices 1, 1 are configured to travel on traveling paths 3, 3 provided in parallel with the lead-in track 2.
[0017]
That is, the putty-coated surface P of the vehicle body outer plate on both sides of the railway vehicle T can be polished simultaneously. In the figure, 4 and 4 are traveling carts, and 5 and 5 are support pillars raised on the traveling carts 4 and 4.
[0018]
In a preferred embodiment of the present invention (Claim 2 ), a plurality of disc sanders 6a and 6b are provided for the one traveling carriage 4 and the support column 5, as shown in FIG. 6 a and 6 b are provided so as to be movable up and down with respect to the support column 5 raised on the traveling carriage 4 and in parallel with the traveling direction of the traveling carriage 4 and in the front-rear direction. Further, the disc sanders 6a and 6b are held so as to be able to advance and return and swing in the vertical direction.
[0019]
First, the structure in which the plurality of disk sanders 6a and 6b can be advanced and returned and swingable in the vertical and horizontal directions will be described. In the following description, since the structure in which the plurality of disk sanders 6a and 6b can be advanced and returned and swingable in the vertical and horizontal directions is the same, they are denoted by the same reference numerals.
[0020]
As shown in FIGS. 1, 2, and 3, an air cylinder 8 is supported by an elevating block 7 that is moved up and down along the support column 5, and a support plate 10 is fixed to the tip of a piston rod 9 of the air cylinder 8. Is done.
[0021]
Next, the disc sanders 6a and 6b are held on the front portion of the support plate 10 so as to be swingable in the vertical and horizontal directions. That is, in the embodiment shown in FIGS. 2 to 4, first, parallel horizontal rods 11, 11 are protruded and fixed on both sides of the front surface of the support plate 10, and a square is formed between the tips of the parallel horizontal rods 11, 11. The frame body 12 is provided so that the top and bottom thereof swing in the front-rear direction.
[0022]
That is, the substantially middle part of the both side vertical rods 12a constituting the frame body 12 is pivotally mounted between the parallel horizontal rods 11 and 11 by the bolt shaft 13, and the upper and lower ends of the frame body 12 can swing in the front-rear direction. Configured.
[0023]
Further, the disc sanders 6a and 6b and the drive unit 14 are provided in the rectangular frame 12 so as to swing in the left-right direction. The drive unit 14 of the disk sanders 6a and 6b includes an air motor 15 and a transmission unit 16 that transmits the driving force to the disk sanders 6a and 6b.
[0024]
The disc sanders 6 a and 6 b can swing in the left and right directions, and the upper and lower ends of the transmission unit 16 constituting the drive unit 14 are respectively positioned at substantially middle portions of the upper and lower horizontal rods 12 b constituting the rectangular frame 12. This is done by pivoting with a bolt shaft 17.
[0025]
Further, as shown in FIGS. 4 and 6, the rear end portion 18 of the transmission unit 16 is held from four directions by four springs 19a, 19b, 19c and 19d which are adjustable in tension. That is, springs 19 a and 19 b are stretched between the upper and lower portions of the rear end portion 18 of the transmission unit 16 and the bracket 20 provided at the upper and lower positions of the support plate 10, so that the left and right portions of the rear end portion 18 of the transmission unit 16 are extended. And springs 19c, 19d are stretched between the parallel horizontal rods 11, 11.
[0026]
In the above configuration, the disk sanders 6a and 6b are swingable in the vertical and horizontal directions with respect to the support plate 10. That is, the disk sanders 6a and 6b are swung in the front-rear direction, with the bolt shaft 13 at the tip of the parallel horizontal rods 11 and 11 as a fulcrum, and the rectangular frame body 12, the transmission unit portion 16, and the air motor 15. At that time, the springs 19a and 19b of the rear end portion 18 of the transmission unit 16 are mainly expanded and contracted.
[0027]
The disc sanders 6a and 6b are swung in the left-right direction with the bolt shaft 17 at the substantially central portion of the upper and lower horizontal rods 12b constituting the rectangular frame 12 as a fulcrum. 15, the springs 19 c and 19 d of the rear end portion 18 of the transmission unit 16 are mainly expanded and contracted.
[0028]
Next, the lifting and lowering structure and the advancing / returning structure of the support plate 10 portion on which the disk sanders 6a and 6b are swingably held will be described with reference to FIG.
[0029]
That is, the Z-axis block 42 is fitted to the guide rail 41 configured on the support pillar 5 side so as to be slidable up and down, and the rack (not shown) configured on the support pillar 5 side is arranged on the Z-axis block 42 side. A pinion (not shown) provided and driven by a servo motor is engaged. Of course, the Z-axis block 42 may be moved up and down by using a ball screw or the like, or by a hoisting method using a rope and a motor. The Z-axis block 42 can be easily lifted and lowered by a balance weight.
[0030]
A ball screw 43 driven by a servo motor (not shown) is held on the shaft block 42, and a holding block 45 for the elevating block 7 is provided on the ball screw 43 via a ball nut 44. In the figure, 46 is a guide rail, and 47 is a bearing adapted to the guide rail 46.
[0031]
Next, the holding block 45 is provided with an inclination servo motor 48 for controlling the inclination angle of the elevating block 7, and the elevating block 7 from the servo motor 48 via the inclination gear box 49, specifically, The inclination angle of the disc sanders 6a and 6b with respect to the putty-coated surface P is controlled by a program.
[0032]
In the above-described configuration, the ball screw 43 is driven by a servo motor so that the lift block 7, that is, the air cylinder 8, the support plate 10, and the front portion thereof can be swung vertically and horizontally through the holding block 45. The disk sanders 6a and 6b held in the front are advanced and returned toward the putty-coated surface P.
[0033]
Further, the tilt servo motor 48 controls the tilt angle of the elevating block 7 and consequently the disc sanders 6a and 6b in accordance with the tilt angle of the putty coating surface P. That is, the follow-up to the curved surface and the inclined surface of the putty-coated surface P is performed by the servo motor for driving the ball screw 43 and the servo motor 48 for inclination, and the air cylinder 8 corresponds to small irregularities that cannot be handled. is there.
[0034]
As a further preferred embodiment of the apparatus of the present invention, of the disc sanders 6a and 6b, the disc sander 6a in the traveling direction of the traveling carriage 4 is a gear action sander, and the rear disc sander 6b is a double action sander. The
[0035]
FIG. 6 shows a cross-sectional view of a main part in which the disc sander 6a is a gear action sander. In the figure, a partial cross-sectional view of the transmission unit 16 is also shown. The structure of the transmission unit 16 is the same as that of the disk sander 6b described above, that is, the double action sander described later.
[0036]
The disc sander 6a is configured by meshing a bevel gear 24 provided on a rotary shaft 23 for rotating the disc sander 6a with a bevel gear 22 provided on a drive shaft 15a of the air motor 15.
[0037]
Further, the disk sander 6a rotates at a large speed ratio, and at the same time, the rotation of the rotating shaft 23 is directly applied to the surface to be polished, so that the polishing amount is large and used for rough polishing.
[0038]
That is, an eccentric pinion 25 is provided near the tip of the rotary shaft 23, and the disc sander 6a is attached to the inner gear 26 side disposed around the eccentric pinion 25.
[0039]
That is, a cylindrical body 27 integral with the inner gear 26 is extended in the direction of the distal end of the rotary shaft 23, and the central portion thereof is rotatably supported by the distal end portion of the rotary shaft 23 via the bearing 28. The disc sander 6 a is attached to the tip of the cylindrical body 27.
[0040]
Furthermore, in the embodiment shown in FIG. 6, the disc sander 6a has an abrasive dust collecting device. That is, a through hole 29 is provided at the center of the disc sander 6a, and a cylindrical bellows 30 and a dust collecting cover 31 for collecting dust are further provided on the back surface, and the dust collecting cover 31 is provided with the disc sander 6a. A brush 32 covering the outer periphery is provided.
[0041]
The cylindrical bellows 30 for dust collection is configured such that one end thereof is fixed to the fixed main body side by a bolt 33 and the other end slips closely to the back surface portion of the disc sander 6. The dust collecting cover 31 is similarly fixed to the fixed main body side by bolts 34. In the figure, 35 is a weight.
[0042]
The disc sander 6a in the gear action sander is rotated and polished by a drive shaft 15a of the air motor 15, bevel gears 22 and 24, a rotating shaft 23, an eccentric pinion 25, and an inner gear 26.
[0043]
FIG. 7 is a cross-sectional view of the main part in which the disc sander 6b is a double action sander. The same components as those of the disc sander 6a and the gear action sander are denoted by the same reference numerals.
[0044]
The double action sander is rotated by utilizing centrifugal force without the disc sander 6b being directly rotated by the rotating shaft 23. Therefore, the rotational speed of the rotating shaft 23 and the rotational speed of the disk sander 6b are not necessarily the same, and the polishing amount is not as large as that of the gear action sander, which is suitable for finish polishing.
[0045]
First, an eccentric rotating shaft 23a is integrally formed at the tip of the rotating shaft 23, and a cylindrical body 27a to which the disk sander 6b is attached to the tip of the eccentric rotating shaft 23a is held free via a bearing 36. Is done.
[0046]
That is, the disc sander 6b is not directly rotated through the cylindrical body 27a by the rotation with the eccentric rotation shaft 23a, and an eccentric weight 37 is provided at the tip of the eccentric rotation shaft 23a. Has been.
[0047]
Similar to the gear action sander, when the rotary shaft 23 is rotated by the air motor 15, the double action sander is subjected to centrifugal force on the cylindrical body 27a to which the disc sander 6b is attached by the eccentric rotary shaft 23a and the eccentric weight 37. A rotational force is generated by this, and polishing is performed by the rotation.
[0048]
FIG. 8 shows the dust collection structure of the abrasive powder in the double action sander. That is, a dust collecting passage 38 and a dust collecting pipe 39 for polishing powder from a through hole 29 provided at the center of the disk sander 6b are provided on the back surface of the disk sander 6b, and also on the dust collecting cover 31 part. A dust collecting pipe 40 for polishing powder scattered toward the brush 32 is provided.
[0049]
The dust collection pipes 39 and 40 are led to a vacuum dust collector. The abrasive dust collecting device is the same as the gear action sander.
[0050]
The apparatus of the present invention having the above-described configuration is automatically controlled following a preset program. That is, the disk sanders 6a and 6b are rotated by the air motor 15, and the disk sanders 6a and 6b are pressed against, for example, the putty-coated surface P of the vehicle body outer plate of the railway vehicle T as shown in FIG. (Z-axis direction) At the same time, while the traveling carriage 4 is traveling at a predetermined speed (X-axis direction) and raising / lowering the lifting block 7 (Y-axis direction), other control is possible, and the disc sanders 6a and 6b Since it can swing vertically and horizontally, polishing of curved surfaces and inclined surfaces can be performed uniformly and effectively.
[0051]
According to equipment of the present invention, a paint undercoat finishing such as vehicle exterior panels, skilled without requiring, by a simple operation, efficiently can be carried out, releasing the operator from heavy labor, further improvement of the working environment Is planned.
[Brief description of the drawings]
FIG. 1 is a diagram showing a usage state of a paint base finishing device for a vehicle body outer plate or the like according to the present invention.
FIG. 2 is a perspective view of a disk sander holding portion of a paint base finishing device such as a vehicle body outer plate according to the present invention.
3 is a partial cross-sectional side view of a disk sander holding part of a paint base finishing apparatus for a vehicle body outer plate or the like according to the present invention shown in FIG. 2;
FIG. 4 is a partial cross-sectional plan view of a disk sander holding portion of a paint base finishing device such as a vehicle body outer plate according to the present invention.
FIG. 5 is an explanatory view showing an elevating structure and an advancing return structure of a support plate portion.
FIG. 6 is a cross-sectional view of a main part of a gear action sander as an embodiment of a disk sander.
FIG. 7 is a cross-sectional view of a main part of a double action sander as one embodiment of a disk sander.
8 is a partial cross-sectional view showing a polishing dust collecting device in the double action sander shown in FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Paint base finishing apparatus, such as a vehicle body outer plate 4 Traveling cart 5 Support pillar 6a, 6b Disc sander
7 Lifting block 10 Support plate
11, 11 parallel horizontal fence
12 Rectangular frame
14 Drive unit
16 Transmission unit
19a-19d Spring

Claims (3)

A support column that is erected on the traveling carriage is provided with a support plate that can be moved up and down, advanced and restored, and tilted in a controllable manner. A rod is protruded and fixed, and a rectangular frame is provided between the tips of the parallel horizontal rods so as to swing in the front-rear direction. A rotating disk sander and a transmission unit constituting its drive unit are disposed in the frame in the left-right direction. A paint base finishing device for a vehicle body outer plate or the like, characterized in that it is provided so as to swing, and a rear end portion of the transmission unit is held from four sides by four springs capable of adjusting tension. 2. The paint base finishing apparatus for a vehicle body outer plate or the like according to claim 1, wherein a plurality of rotating disc sanders are provided in parallel and in the same direction as the traveling direction of the traveling carriage. 3. The coating base finishing apparatus for a vehicle body outer plate or the like according to claim 1, wherein the rotating disk sander has an abrasive dust collecting device.

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