JP5997804B1 - Surface treatment equipment - Google Patents

Abstract

Provided is a surface treatment apparatus capable of improving work efficiency while suppressing generation of waste and noise even on a complicated surface having protrusions. A surface treatment apparatus disposed on the surface of a structure S having a protrusion P, and irradiating the surface of the protrusion P with a laser beam L to remove a film or deposit formed on the surface of the protrusion P. Reference numeral 1 denotes a housing 2 disposed on the surface of the structure S so as to surround the projection P, a laser oscillator 3 that oscillates laser light L, and a laser beam L that is disposed on the ceiling portion 21 of the housing 2 in the housing 2. A scanner unit 4 that deflects the laser beam to irradiate, a reflection mirror 5 that is disposed in the housing 2 and reflects the laser light L deflected by the scanner unit 4 toward the projection P, and the reflection mirror 5 is formed on the projection P. And a reflecting mirror driving device 6 that rotates and moves along the outer periphery. [Selection] Figure 1

Description

  The present invention relates to a surface treatment apparatus, and more particularly, to a surface treatment apparatus suitable for removing a coating film or a deposit on a surface of a projection such as a bolt head.

  For example, bolts are often used as fasteners at joints of steel structures such as bridges. Since such bolts are generally exposed to wind and rain, the surface is often coated with rust prevention or the like. Further, since the coating film deteriorates or oxides and dirt adhere to the surface due to long-term use, maintenance such as periodic cleaning and repainting is required. In addition, when repainting, it is common to peel off an old coating film (including keren) and then apply a new coating.

  By the way, the bolt head is a projection having a substantially hexagonal column shape protruding from the surface of the steel structure, and the operation of peeling the coating film on the surface is troublesome in itself. In addition, it is particularly difficult to remove the coating film that has entered the corners formed by the bolt head and the surface of the steel structure.

  For such peeling of the coating film, in general, shot blasting or the like in which a projectile such as iron particles or sand particles is sprayed on the surface of the structure is used in addition to manual work using an electric power tool. As described in Patent Document 1, a method using laser light has already been proposed. In the invention described in Patent Document 1, an attachment provided with a mirror on the inner peripheral surface of the tip is arranged on the surface of the structure from which the bolt head protrudes, and the laser beam is reflected by the mirror to irradiate the side surface of the bolt head. ing.

Japanese Patent No. 5574354

  However, manual work using an electric power tool tends to increase the work time, and the method using shot blasting has a problem that a large amount of waste and noise are generated. Further, in the method described in Patent Document 1, since the laser beam is irradiated while rotating around the rotation reference axis, the surface of the bolt head that is easily peeled off and the side surface of the bolt head that is difficult to peel off are used. There was a problem that the laser beam was alternately irradiated on both, and the working efficiency was poor. In addition, the laser beam cannot be intensively applied to the corners of the bolt head, which is particularly difficult to peel off, resulting in a problem that the working time becomes long.

  Such a problem is not limited to the bolt head, but may also occur in other protrusions protruding from the surface of the structure, such as a rivet head, a nut, and the shape of the structure.

  The present invention has been devised in view of the above-described problems, and even a complex surface having protrusions can improve the work efficiency while suppressing generation of waste and noise. An object is to provide a processing apparatus.

According to the present invention, in the surface treatment apparatus that is disposed on the surface of the structure having the protrusions and irradiates the surface of the protrusions with a laser beam to remove the coating or the deposit formed on the surface of the protrusions. A housing disposed on the surface of the structure so as to surround the protrusion, a laser oscillator that oscillates the laser light, and is disposed on an upper portion of the housing to deflect the laser light into the housing. A scanner unit that reflects the laser light that is disposed in the housing and is deflected by the scanner unit toward the projection, and a reflection mirror that rotates the reflection mirror along the outer periphery of the projection comprising a drive device, wherein the housing is telescopically configured in the vertical direction to the surface of the structure, we are characterized Surface treatment apparatus is provided.

Further, according to the present invention, the surface treatment is arranged on the surface of the structure having the protrusions, and the coating or deposits formed on the surface of the protrusions are removed by irradiating the surface of the protrusions with laser light. In the apparatus, a housing disposed on the surface of the structure so as to surround the protrusion, a laser oscillator that oscillates the laser light, and a laser light that is disposed on the housing and irradiates the laser light into the housing. A deflecting scanner unit, a reflecting mirror disposed in the housing and reflecting the laser light deflected by the scanner unit toward the projection, and the reflecting mirror is rotated along the outer periphery of the projection. A plurality of projections arranged in a line, and a support arranged along the arrangement direction of the plurality of projections. Platform and comprises a carriage which is movable arranged on the support base, the said carriage in said housing is fixed, is provided a surface treatment apparatus, characterized in that.

Further, according to the present invention, the surface treatment is arranged on the surface of the structure having the protrusions, and the coating or deposits formed on the surface of the protrusions are removed by irradiating the surface of the protrusions with laser light. In the apparatus, a housing disposed on the surface of the structure so as to surround the protrusion, a laser oscillator that oscillates the laser light, and a laser light that is disposed on the housing and irradiates the laser light into the housing. A deflecting scanner unit, a reflecting mirror disposed in the housing and reflecting the laser light deflected by the scanner unit toward the projection, and the reflecting mirror is rotated along the outer periphery of the projection. A reflecting mirror driving device, wherein the housing has a locking portion that can be locked to a protrusion adjacent to the outer peripheral surface thereof. Surface processing apparatus is provided.

The scanner unit may include a first scanner unit that deflects the laser light in one direction and a second scanner unit that deflects the laser light in the other direction.

The surface treatment apparatus includes a focus adjustment unit that adjusts the focus of the laser light, and when processing a portion of the protrusion close to the surface of the structure, the focus adjustment unit narrows the focus of the laser light. The focal point of the laser beam may be blurred by the focus adjustment unit when processing a portion of the protrusion away from the surface of the structure.

In addition, the surface treatment apparatus may include a camera that can image the protrusion, or may include a measurement device that can measure the center of the protrusion.

Also, the structure is, for example, a steel structures including bridges.

  According to the surface treatment apparatus of the present invention described above, since the laser beam is irradiated to the side surface of the projection while rotating the reflection mirror along the outer periphery of the projection, the coating film such as a coating film or oxide It is possible to concentrate the laser beam on a portion where it is desired to remove the adhered matter such as. Further, since the surface treatment is performed using the laser beam, it is not necessary to collide the projecting body such as iron particles or sand particles with the surface of the object. Therefore, according to the present invention, it is possible to improve work efficiency while suppressing generation of waste and noise even on a complicated surface having protrusions.

It is a schematic whole block diagram which shows the surface treatment apparatus which concerns on 1st embodiment of this invention. It is explanatory drawing which shows the surface treatment procedure of the surface treatment apparatus shown in FIG. 1, (a) is a side view of the protrusion which shows a starting point and a scanning direction, (b) is the laser beam irradiated to the side surface of a protrusion. The side view to show, (c) has shown the top view which shows the movement locus | trajectory of a reflective mirror. It is side surface sectional drawing which shows the surface treatment apparatus which concerns on other embodiment of this invention, (a) has shown 2nd embodiment, (b) has shown 3rd embodiment. It is side surface sectional drawing which shows the surface treatment apparatus which concerns on 4th embodiment of this invention, (a) has shown the contracted state of the housing, (b) has shown the extended state of the housing. It is explanatory drawing which shows the surface treatment apparatus which concerns on 5th embodiment of this invention, (a) is a top view, (b) has shown BB arrow sectional drawing in Fig.5 (a). It is explanatory drawing which shows the surface treatment apparatus which concerns on 6th embodiment of this invention, (a) is a top view, (b) has shown the side view.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6B. Here, FIG. 1 is a schematic overall configuration diagram showing the surface treatment apparatus according to the first embodiment of the present invention. 2A and 2B are explanatory views showing a surface treatment procedure of the surface treatment apparatus shown in FIG. 1, wherein FIG. 2A is a side view of a projection showing a starting point and a scanning direction, and FIG. The side view which shows the laser beam which shows, (c) has shown the top view which shows the movement locus | trajectory of a reflective mirror.

  As shown in FIG. 1, the surface treatment apparatus 1 according to the first embodiment of the present invention is disposed on the surface of the structure S having the protrusions P, and irradiates the surface of the protrusions P with the laser light L. A surface treatment apparatus that removes a film or deposit formed on the surface of the protrusion P, the housing 2 disposed on the surface of the structure S so as to surround the protrusion P, and a laser that oscillates the laser light L The oscillator 3, the scanner unit 4 that is disposed on the upper portion (for example, the ceiling portion 21) of the housing 2 and deflects so as to irradiate the laser light L into the housing 2, and is disposed in the housing 2 and deflected by the scanner unit 4. A reflection mirror 5 that reflects the laser light L toward the projection P and a reflection mirror driving device 6 that rotates the reflection mirror 5 along the outer periphery of the projection P are provided.

  The structure S is a steel structure such as a bridge, for example. Moreover, the protrusion P is a bolt head of the bolt used for the junction part etc. of the structure S, for example. Here, the protrusions P are not limited to bolt heads, but include various protrusions protruding from the surface of the structure S, such as rivet heads, nuts, and shapes of the structures S. The structure S is not limited to a steel structure, and may be another structure such as a concrete structure.

  The housing 2 is, for example, a container that surrounds one protrusion P protruding from the surface of the structure S as shown in FIG. Specifically, it has a substantially cylindrical shape, one end (the lower side in the figure) is open, and the other end (the upper side in the figure) is formed with a ceiling part 21 having an opening 21a at a substantially central part. ing. Further, a grip portion 22 for transporting or fixing the surface treatment apparatus 1 may be disposed on the outer peripheral surface of the housing 2. The shape of the housing 2 is not limited to the illustrated shape, and may be a rectangular tube shape or a truncated cone shape.

  A vacuum tube 23 may be disposed in the housing 2. For example, a flexible hose or the like is connected to the vacuum tube 23, and the flexible hose or the like is connected to a vacuum tank (not shown). When the surface treatment apparatus 1 is used, the air in the housing 2 is drawn into the vacuum tank, so that the film peeled off from the surface of the projection P can be collected in the vacuum tank without diffusing. Moreover, in this embodiment, since no projectiles such as iron particles and sand particles are used, the amount of waste collected from the housing 2 to the vacuum tank can be reduced, and the vacuum tank can be downsized. You can also. The vacuum tank is disposed at a location separated from the work place, for example.

The laser oscillator 3 is, for example, a CO ₂ laser, a fiber laser, a YAG laser, or the like. The laser oscillator 3 can be arbitrarily selected from commercially available ones according to the types of the structures S and protrusions P and the surface treatment target. The laser beam L generated by the laser oscillator 3 is transmitted to a beam expander 32 disposed on the ceiling portion 21 of the housing 2 via, for example, an optical fiber 31. The beam expander 32 is a device that adjusts the beam diameter of the laser light L. In the present embodiment, the case where the laser oscillator 3 is arranged at a position separated from the housing 2 is illustrated, but the present invention is not limited to this arrangement. For example, when a small laser oscillator 3 is used, the laser oscillator 3 may be installed on the housing 2.

  Further, a focus adjustment unit 33 that adjusts the focus of the laser light L may be disposed on the downstream side of the beam expander 32. The focus adjustment unit 33 is disposed on the ceiling portion 21 of the housing 2, for example. The focus adjustment unit 33 includes, for example, an incident lens 33a that receives the laser light L from the beam expander 32, and an emission lens 33b that emits the laser light L to the outside, and sets the distance between the incident lens 33a and the emission lens 33b. By adjusting, the focal point (for example, focal length, focal depth, etc.) of the laser light L is adjusted.

  The scanner unit 4 includes, for example, a first scanner unit 41 that deflects the laser light L in one direction (for example, the X-axis direction) and a second scanner unit that deflects the laser light L in the other direction (for example, the Y-axis direction). 42 and a cover member 43 that supports the first scanner unit 41 and the second scanner unit 42. The cover member 43 is disposed so as to seal the opening 21 a formed in the ceiling portion 21 of the housing 2. In FIG. 1, the support structure for the first scanner unit 41 and the second scanner unit 42 is not shown for convenience of explanation.

  The first scanner unit 41 and the second scanner unit 42 constitute a so-called biaxial scanner unit 4 and are configured to be able to scan the laser light L in the X axis direction and the Y axis direction. For example, each of the first scanner unit 41 and the second scanner unit 42 includes a galvanometer mirror that reflects the laser light L, and a drive motor that rotates or reciprocally rotates the galvanometer mirror.

  According to the scanner unit 4, the laser light L emitted from the focus adjustment unit 33 is easily irradiated with the laser light L into the housing 2 via the first scanner unit 41 and the second scanner unit 42. Can do. The laser light L may be deflected by the scanner unit 4 so as to directly irradiate the upper surface of the projection P, or may be deflected by the scanner unit 4 so as to irradiate the reflection mirror 5.

  The reflection mirror 5 is a mirror fixed to the mirror support member 51 so as to incline at a predetermined inclination angle toward the scanner unit 4 with respect to the side surface of the projection P. The inclination angle can be arbitrarily set according to the configuration of the surface treatment apparatus 1, the type of the protrusions P, and the like. The mirror support member 51 is, for example, an arm having the reflection mirror 5 fixed to one end and the other end fixed to the reflection mirror driving device 6. The mirror support member 51 is not limited to the illustrated shape as long as it can fix the reflecting mirror 5 and can connect the reflecting mirror 5 and the reflecting mirror driving device 6.

  The reflection mirror drive device 6 is formed at, for example, a drive gear 61 that is rotatably supported on the inner surface of the ceiling portion 21 of the housing 2, a drive motor 62 that rotates the drive gear 61, and an end of the drive gear 61. And a flange portion 63. The drive gear 61 has an opening 61a communicating with the opening 21a at the center, and teeth are formed on the outer periphery. In addition, the drive gear 61 is rotatably supported via a bearing on a cylindrical wall standing on the outer edge of the opening 21a of the ceiling portion 21, for example.

  The drive motor 62 has a main body disposed on the ceiling 21 of the housing 2 and a pinion gear that meshes with the drive gear 61 at the tip. The tip of the drive motor 62 is inserted into the housing 2 through an opening formed in the ceiling portion 21. In FIG. 1, for the convenience of explanation, the illustration of the support member of the drive motor 62 is omitted.

  The flange portion 63 is a component that connects the drive gear 61 and the mirror support member 51. The flange portion 63 has an opening 63 a communicating with the opening 61 a at the center, and has a larger diameter than the drive gear 61, for example. By forming the flange portion 63, the shape of the mirror support member 51 can be simplified like an I-shape or an L-shape. Although not shown, the mirror support member 51 may be formed in a crank shape and directly connected to the drive gear 61, and the flange portion 63 may be omitted.

  The configuration of the reflection mirror driving device 6 described above is merely an example, and is not limited to the illustrated configuration. For example, the reflection mirror driving device 6 may be configured by a roller that rolls in contact with the inner surface (side surface or ceiling portion) of the housing 2 or may be configured by a belt driving mechanism. Further, the reflection mirror drive device 6 may have a reduction gear mechanism between the drive gear 61 and the drive motor 62.

  Further, the surface treatment apparatus 1 may include a camera 7 that can image the protrusion P. For example, as shown in FIG. 1, the camera 7 is disposed on the cover member 43 of the scanner unit 4 so as to face the upper surface of the protrusion P. When the camera 7 is arranged at this position, the first scanner unit 41 and the second scanner unit 42 ensure a space in which the field of view of the camera 7 can be formed in the center so as not to obstruct the field of view of the camera 7. Be placed.

  By disposing the camera 7, the housing 2 and the projection P can be easily aligned with each other by capturing an image of the projection P while the housing 2 is covered with the projection P. Since the camera 7 and the housing 2 are already arranged coaxially, the projection P is positioned coaxially with the housing 2 by imaging the projection P and calculating the center point from the outer shape. It is possible to easily grasp whether or not there is. Whether or not the protrusion P is located at the center is notified to the worker by an external output means such as a sound, a lamp, or a liquid crystal display.

  Further, the surface treatment apparatus 1 may include a measuring device 8 that can measure the center of the protrusion P. The measuring device 8 is a laser pointer, for example, but may be one using infrared rays or ultrasonic waves. The measuring device 8 is disposed, for example, at a position close to the camera 7, irradiates the projection P with laser light, and measures the center of the projection P based on the amount of reflected light. By disposing such a measuring device 8, for example, even when the illuminance inside the housing 2 is insufficient, the center of the protrusion P can be easily measured. The measuring device 8 can be omitted if necessary.

  Further, the surface treatment apparatus 1 includes a control device 9 that controls the beam expander 32, the focus adjustment unit 33, the first scanner unit 41, the second scanner unit 42, the drive motor 62, and the like according to the output of the camera 7. It may be. For example, after the positioning (axis alignment) of the housing 2 with respect to the projection P is completed, the control device 9 irradiates the surface of the projection P with the laser light L and removes the coating film and the attached matter by the following procedure. .

First, the control device 9 recognizes the shape of the projection P using the camera 7 and determines the target surface P _n to be subjected to the surface treatment. As shown by the solid line in FIG. 2C, the control device 9 moves the reflecting mirror 5 to a position facing the target surface _Pn .

Next, the control device 9 determines the target surface from the shape of the projection P acquired by the camera 7 and the shape data (diameter size, side width, height, etc.) regarding the projection P stored in the control device 9 in advance. A starting point Q at P _n is determined. The control device 9 controls the postures of the galvanometer mirrors of the first scanner unit 41 and the second scanner unit 42 so that the laser beam L reflected from the reflection mirror 5 is irradiated to the starting point Q. Origin Q is, for example, as shown in FIG. 2 (a), an edge portion of the target surface P _n, so as to be located corners formed by the surface of the target surface P _n and the structure S To be determined. However, the position of the starting point Q can be arbitrarily set.

  The laser beam L irradiated to the starting point Q is reciprocated in the XY plane, for example, as shown by the dotted arrows in FIGS. 2 (a) and 2 (c). At this time, the control device 9 controls the postures of the galvanometer mirrors of the first scanner unit 41 and the second scanner unit 42.

  Further, the control device 9 adjusts the beam diameter and focus of the laser light L when moving the laser light L in the Z-axis direction. Specifically, the control device 9 narrows the focal point of the laser light L when processing a portion (for example, a corner portion) of the projection P close to the surface of the structure S, and the control device 9 reduces the focus of the structure S of the projection P. The focus adjustment unit 33 is controlled so as to blur the focus of the laser light L when processing a portion away from the surface. At this time, if it is desired to adjust the beam diameter in accordance with the focal point, the control unit 9 may control the beam expander 32.

  In general, since it is difficult to peel off a coating film or the like that has entered the corners formed by the protrusions P and the surface of the structure S, as shown by a solid arrow in FIG. It is preferable to irradiate the laser beam L with a high energy density by focusing the light L. On the other hand, since the portion close to the upper surface of the protrusion P is easy to peel off the coating film or the like, the necessary surface treatment is required even when the laser beam L with a low energy density is irradiated by blurring the focus of the laser beam L. It can be performed.

As described above, by defocusing the laser beam L, the irradiation range of the laser beam L reflected by the reflection mirror 5 is gradually or stepwise expanded as shown by the dotted circle in FIG. It is possible to increase the Z-axis direction component of the laser light L irradiated to the target surface _Pn . For example, when the focal point of the laser beam L is blurred as much as possible, the laser beam L can be applied to the range shaded in gray in FIG. 2B, and the laser beam L is applied to the entire target surface _Pn. Can be irradiated.

In the present embodiment, the energy density of the laser beam L irradiated to the target surface P _n is controlled by controlling the focal point of the laser beam L according to the properties of the coating film and the deposit formed on the surface of the projection P. The surface treatment of the entire target surface _Pn can be performed only by adjusting the focus while scanning the laser beam L in the XY plane. Therefore, according to the present embodiment, there is no need to arrange a galvanometer mirror that scans the laser beam L in the Z-axis direction, and complex control is performed to scan in the Z-axis direction while scanning the laser beam L in the XY plane. There is no need.

Next, after the surface treatment of the target surface _Pn is completed, the control device 9 reflects the reflection mirror at a position facing the side surface adjacent to the target surface _Pn , as indicated by the solid line arrow in FIG. 5 is rotated and surface treatment is performed in the same manner as described above. Hereinafter, by repeating this procedure, the control device 9 performs surface treatment on each side surface of the protrusion P. When surface treatment is performed on the upper surface of the protrusion P, for example, as shown in FIG. 1, the laser light L is emitted from the scanner unit 4 (for example, the second scanner unit 42) without using the reflection mirror 5. Direct irradiation may be performed.

  According to the surface treatment apparatus 1 according to the present embodiment described above, the laser beam L is applied to the side surface of the projection P while rotating the reflection mirror 5 along the outer periphery of the projection P. The laser beam L can be concentrated on a portion where a film such as a film or a deposit such as an oxide is desired to be removed. In addition, since the surface treatment is performed using the laser beam L, it is not necessary to cause a projectile such as an iron particle or a sand particle to collide with the surface of the object. Therefore, according to the surface treatment apparatus 1 which concerns on this embodiment, even if it is the complicated surface which has the protrusion P, the improvement of work efficiency can be aimed at, suppressing generation | occurrence | production of a waste material or noise.

  Next, a surface treatment apparatus 1 according to another embodiment of the present invention will be described with reference to FIGS. 3 (a) to 6 (b). Here, FIG. 3 is a side sectional view showing a surface treatment apparatus according to another embodiment of the present invention, in which (a) shows a second embodiment and (b) shows a third embodiment. FIG. 4 is a side sectional view showing a surface treatment apparatus according to a fourth embodiment of the present invention, wherein (a) shows a contracted state of the housing and (b) shows an extended state of the housing. 5A and 5B are explanatory views showing a surface treatment apparatus according to the fifth embodiment of the present invention, in which FIG. 5A is a plan view, and FIG. 5B is a cross-sectional view taken along line BB in FIG. ing. FIG. 6 is an explanatory view showing a surface treatment apparatus according to a sixth embodiment of the present invention, wherein (a) shows a plan view and (b) shows a side view. In addition, about the same component as the surface treatment apparatus 1 which concerns on 1st embodiment mentioned above, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

  In the surface treatment apparatus 1 according to the second embodiment shown in FIG. 3A, instead of the camera 7, a monitoring window 24 for an operator to visually observe the inside of the housing 2 is arranged in the housing 2. . At this time, the operator may operate the remote controller 91 connected to the control device 9 while monitoring the inside of the housing 2 from the monitoring window 24 to position the housing 2 and the reflection mirror 5. Thus, the camera 7 can be omitted as necessary. In FIG. 3A, illustrations of the laser oscillator 3, the gripping portion 22, and the like are omitted for convenience of explanation.

  In the surface treatment apparatus 1 according to the third embodiment shown in FIG. 3B, the laser oscillator 3 is disposed above the housing 2 (specifically, above the cover member 43). When a small laser oscillator 3 can be used for the housing 2, as shown in the figure, the surface treatment apparatus 1 is reduced in size and space-saving by mounting the laser oscillator 3 in the housing 2. be able to. At this time, when the camera 7 cannot be disposed on the upper portion of the cover member 43, the camera 7 may be disposed on the side surface of the housing 2 as illustrated. In FIG. 3B, the gripping portion 22 and the like are not shown for convenience of explanation.

  The surface treatment apparatus 1 according to the fourth embodiment shown in FIGS. 4A and 4B is configured such that the housing 2 can be expanded and contracted in the vertical axis direction with respect to the surface of the structure S. Specifically, the housing 2 is configured by, for example, a main body 2a on which the scanner unit 4 and the like are mounted, and a slide portion 2b disposed at the tip of the main body 2a. A stopper 2c that defines the upper limit of the slide portion 2b and a stopper 2d that defines the lower limit may be formed on the outer peripheral surface of the main body 2a. The slide portion 2b has, for example, a cylindrical shape that can be inserted along the outer peripheral surface of the main body portion 2a, and has a claw 2e that can be locked to the stoppers 2c and 2d.

  Although not shown, the housing 2 may have a lock mechanism (for example, a lock pin or the like) that positions the slide portion 2b with respect to the main body portion 2a. Further, the slide portion 2b may be moved along the main body portion 2a by a driving means such as an actuator or a rack and pinion mechanism. 4A and 4B, illustrations of the laser oscillator 3, the gripping portion 22, and the like are omitted for convenience of explanation.

  In the surface treatment apparatus 1 according to the present embodiment, the main body portion 2a can be moved in the Z-axis direction with the slide portion 2b in contact with the surface of the structure S, and the Z of the reflection mirror 5 with respect to the projection P The axial position can be adjusted. Therefore, for example, the laser beam L having a high energy density can be irradiated by focusing the laser beam L even at a portion of the protrusion P away from the surface of the structure S.

  The surface treatment apparatus 1 according to the fifth embodiment shown in FIGS. 5A and 5B is arranged in the arrangement direction of the plurality of protrusions P when the plurality of protrusions P are arranged in a line. A support base 11 disposed along the support base 11 and a carriage 12 disposed on the support base 11 so as to be able to travel are provided, and the housing 2 is fixed to the carriage 12. 5A and 5B, illustrations of the laser oscillator 3, the optical fiber 31, and the like are omitted for convenience of explanation.

  The support base 11 includes, for example, at least four leg portions 11a that are grounded to the surface of the structure S, and a frame body 11b that is disposed above the leg portions 11a. The upper surface of the frame 11 b forms a rail surface that travels on the carriage 12. Although not shown, when the support base 11 is arranged on a vertical surface, a fixing jig for fixing the support base 11 to a part of the structure S may be used.

  The carriage 12 includes, for example, a frame body 12a that can be inserted through the upper portion of the housing 2, wheels 12b that are arranged on both sides of the frame body 12a, and a restraining portion 12c that can restrain the grip portion 22 of the housing 2. The In addition, about the power supply and cable which drive the trolley | bogie 12, the figure is abbreviate | omitted. By using the support base 11 and the carriage 12, for example, when a plurality of projections P are arranged in one direction, the surface treatment apparatus 1 can be easily and quickly moved, and work efficiency is improved. Can be achieved. In addition, the structure of the support stand 11 and the trolley | bogie 12 is not limited to the structure shown in figure, For example, the restraint part 12c may restrain the housing 2 in parts other than the holding part 22. FIG.

  In the present embodiment, since it is necessary to move the surface treatment apparatus 1 so as not to interfere with the protrusions P, for example, the surface treatment according to the fourth embodiment shown in FIGS. 4A and 4B. The apparatus 1 is preferably used. When the surface treatment of the protrusion P is performed, for example, the slide portion 2b of the housing 2 is brought into contact with the surface of the structure S as indicated by a one-dot chain line in FIG. When the surface treatment of the protrusions P is completed and the surface treatment of the adjacent protrusions P is performed, for example, as shown by the solid line in FIG. The carriage 12 is moved in the state moved to the 2a side. In addition, when the housing 2 does not have an expansion / contraction mechanism, although not shown, an elevating mechanism for elevating the housing 2 may be disposed on the carriage 12.

  The surface treatment apparatus 1 according to the sixth embodiment shown in FIGS. 6A and 6B includes a locking portion 25 that can be locked to the protrusions P adjacent to both sides of the outer peripheral surface of the housing 2. 2 is formed. For example, a plurality of bolts used in the structure S such as a bridge are often arranged at predetermined intervals in the row direction and the column direction, and the distance between the bolts is almost the same numerical value according to the bolt diameter.

  Therefore, by attaching the locking portion 25 corresponding to the arrangement of the bolt at the place where the surface treatment is performed to the outer peripheral surface of the housing 2, the housing 2 can be simply locked to the adjacent bolt (projection P). Can be easily positioned. Further, although not shown, a mark for positioning (axial alignment) of the housing 2 with respect to the projection P to be surface-treated may be displayed on the surface of the housing 2 or the locking portion 25. In addition, the shape of the latching | locking part 25 is not limited to the rod shape as shown in figure, The L shape may be sufficient and it may be formed cyclically | annularly.

  By using the surface treatment apparatus 1 according to the first to sixth embodiments described above, for example, a coating film, oxide (rust), pavement, concrete, resin material, Efficient removal of linings, rubber materials, adhesives, chemical products, dirt, etc. Further, the protrusion P may be a portion protruding in a horizontal plane, a portion protruding in a vertical plane, or a portion protruding in an inclined surface.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 Surface treatment apparatus 2 Housing 2a Main-body part 2b Slide part 2c, 2d Stopper 2e Claw 3 Laser oscillator 4 Scanner unit 5 Reflection mirror 6 Reflection mirror drive device 7 Camera 8 Measurement apparatus 9 Control apparatus 11 Support base 11a Leg part 11b Frame 12 Carriage 12a Frame 12b Wheel 12c Restraining part 21 Ceiling part 21a Opening part 22 Grasping part 23 Vacuum tube 24 Monitoring window 25 Locking part 31 Optical fiber 32 Beam expander 33 Focus adjustment unit 33a Incident lens 33b Exit lens 41 First scanner unit 42 Second scanner unit 43 Cover member 51 Mirror support member 61 Drive gear 61a Opening 62 Drive motor 63 Flange 63a Opening 91 Remote controller

Claims (8)

In a surface treatment apparatus that is disposed on the surface of a structure having protrusions, and removes a film or deposits formed on the surface of the protrusions by irradiating the surface of the protrusions with laser light.
A housing disposed on a surface of the structure so as to surround the protrusion;
A laser oscillator for oscillating the laser beam;
A scanner unit disposed on an upper part of the housing and deflecting the laser beam to irradiate the housing;
A reflection mirror that is disposed in the housing and reflects the laser light deflected by the scanner unit toward the projection;
A reflection mirror driving device for rotating the reflection mirror along the outer periphery of the protrusion , and
The housing is configured to be stretchable in a vertical axis direction with respect to a surface of the structure.
The surface treatment apparatus characterized by the above-mentioned. In a surface treatment apparatus that is disposed on the surface of a structure having protrusions, and removes a film or deposits formed on the surface of the protrusions by irradiating the surface of the protrusions with laser light.
A housing disposed on a surface of the structure so as to surround the protrusion;
A laser oscillator for oscillating the laser beam;
A scanner unit disposed on an upper part of the housing and deflecting the laser beam to irradiate the housing;
A reflection mirror that is disposed in the housing and reflects the laser light deflected by the scanner unit toward the projection;
A reflection mirror driving device for rotating the reflection mirror along the outer periphery of the protrusion, and
When a plurality of protrusions are arranged in a row, a support base arranged along the arrangement direction of the plurality of protrusions, and a carriage arranged to run on the support base, and The housing is fixed to the carriage,
The surface treatment apparatus characterized by the above-mentioned. In a surface treatment apparatus that is disposed on the surface of a structure having protrusions, and removes a film or deposits formed on the surface of the protrusions by irradiating the surface of the protrusions with laser light.
A housing disposed on a surface of the structure so as to surround the protrusion;
A laser oscillator for oscillating the laser beam;
A scanner unit disposed on an upper part of the housing and deflecting the laser beam to irradiate the housing;
A reflection mirror that is disposed in the housing and reflects the laser light deflected by the scanner unit toward the projection;
A reflection mirror driving device for rotating the reflection mirror along the outer periphery of the protrusion, and
The housing has a locking portion that can be locked to a protrusion adjacent to the outer peripheral surface thereof.
The surface treatment apparatus characterized by the above-mentioned. The scanner unit includes a first scanner unit that deflects the laser light in one direction and a second scanner unit that deflects the laser light in another direction . The surface treatment apparatus according to one item . A focus adjustment unit that adjusts the focus of the laser light, and when the portion of the projection close to the surface of the structure is processed, the focus of the laser light is reduced by the focus adjustment unit, and the structure of the projection The surface treatment apparatus according to any one of claims 1 to 3 , wherein the focus of the laser beam is blurred by the focus adjustment unit when a portion away from the surface of the object is processed. The surface treatment apparatus according to any one of claims 1 to 3, further comprising a camera capable of imaging the protrusion. The surface treatment apparatus according to claim 1 , further comprising a measurement device capable of measuring a center of the protrusion. The surface treatment apparatus according to claim 1 , wherein the structure is a steel structure including a bridge.