JP6025516B2 - Mounting machine and processing method - Google Patents

Description

  The present invention is a large processing object that cannot use a general cutting machine, such as a ship or a wall of a large structure, particularly a large processing object that cannot be processed in a factory and has no foothold in a high place. The present invention relates to an attachment processing machine and a processing method capable of processing an object or the like.

As a cutting device that flatly cuts a seat surface such as a large tank, a pressure bulkhead, or a manhole (hatch) provided in a ship hull or the like and an opening for attaching a fitting part, for example, a seat disclosed in Patent Document 1 A surface processing machine is known.
This is configured to install an annular cradle that surrounds the seat surface of the circular opening, and to cut the seat surface flatly while moving the tool post attached to the cradle in the circumferential direction of the cradle. ing.

Japanese Utility Model Publication No. 2-15201

  The above-mentioned seating surface processing machine is specialized for cutting the seating surface of a circular manhole, for example, and since the trajectory of the tool post is limited to a circular shape, a workpiece to be processed in another shape is used. Cutting cannot be performed freely, and a pedestal with a dedicated diameter must be prepared in accordance with the diameter of the manhole.

In addition, the diameter of the pedestal of the seat surface processing machine must be larger than the opening to be machined, and in addition, the cradle is deformed by the reaction force during cutting and the machining accuracy decreases. In order to prevent this, it is necessary to form the cradle with high rigidity, that is, as a thick and monolithic structure, so that the cradle alone is considerably heavy and is difficult to attach and detach.
In particular, if the opening to be machined has a steep wall shape, it will be necessary to mobilize large crane equipment and a large number of workers to perform installation and removal work, which is difficult and dangerous. It was.

  The present invention has been made in view of the above circumstances, is simple and lightweight, easy to install and remove, highly versatile, and capable of processing a large workpiece with high machining accuracy. An object is to provide a machine and a processing method.

In order to solve the above problems, the present invention employs the following means.
That is, in the attachment processing machine according to the present invention, the four side members can be disassembled and assembled, and the longitudinal direction of the two opposing side members extends in the first direction, and the other two opposing members The longitudinal direction of the side member extends in a second direction orthogonal to the first direction, and the extending direction of each side member is maintained by the right angle maintaining means provided at each end of the four side members. The fixed frame body that can be assembled to the object to be processed and extends in the second direction and is relatively movable along the first direction. The movable frame body to be attached and the movable frame body are attached to be movable relative to the movable frame body along the second direction, and are orthogonal to a surface direction formed by the first direction and the second direction. Feed and move the processing tool in 3 directions Machine and said interposed between the workpiece by mounting the said fixed frame member and said stationary frame member will be provided with a plurality of mounting brackets which are arranged at predetermined intervals, the mounting bracket bets can Is provided with an interval dimension adjusting unit capable of finely adjusting an interval dimension between the fixed frame body and the workpiece, and the processing tool is configured to make the movable frame body relative to the fixed frame body relative to the first direction. The fixed frame by movement, relative movement of the processing machine in the second direction with respect to the movable frame body, and feed movement in the third direction orthogonal to the surface direction of the fixed frame body. It is characterized in that the processing object is processed by moving a rectangular inner region of the body in a three-dimensional direction.

  According to the above configuration, since the fixed frame body, which is the largest component constituting the attachment processing machine, can be disassembled and assembled into four side members, each side member is transported to the vicinity of the workpiece and Since it is possible to assemble with a fixed frame body, there are no restrictions on the means of transportation and transportation to the workpiece.

Moreover, if the size of the fixed frame body is increased, a large workpiece can be processed, and the movement trajectory of the processing machine is not limited to a circle or the like, so the versatility is high regardless of the shape of the workpiece. Can be demonstrated. Moreover, since it can be installed regardless of the installation angle from the horizontal direction to the vertical direction, the degree of freedom of work can be increased.
In addition, by increasing the size of the fixed frame body, it is possible to expand the processing area without changing the basic component configuration, so select the fixed frame body according to the size of the workpiece. And can exhibit higher versatility.

  Further, in the mounting processing machine according to the present invention, in the above configuration, the fixed frame body is installed on the workpiece via a plurality of mounting brackets arranged at a predetermined interval, and the mounting bracket is fixed It is characterized by comprising an interval dimension adjusting section capable of finely adjusting an interval dimension between the frame body and the workpiece.

  According to the above configuration, the flatness of the fixed frame body with respect to the processing target surface of the processing target object is adjusted by individually adjusting the interval dimension adjusting portions of the plurality of mounting brackets after the fixed frame body is installed on the processing target object. And can produce straightness. Therefore, the accuracy of the fixed frame body, that is, the processing accuracy of the processing object can be increased without being affected by the accuracy of the mounting surface of the processing object.

  Moreover, since the mounting method for obtaining the flatness and straightness of the fixed frame body after the fixed frame body is installed on the workpiece as described above can be realized, the assembly accuracy of the four side members constituting the fixed frame body can be increased. There is no problem even if it is lowered slightly. For this reason, after assembling the four side members into a rectangular shape on site, it can be quickly attached to the workpiece, and the time required for transportation, installation, and removal can be shortened.

The mounting machine according to the present invention having the above structure, the fixed frame said plurality of welded pieces welded to the workpiece, and a bolt for bolting the mounting bracket to the welding piece, the mounting bracket And a bolt for bolting the body.

  According to the above configuration, the fixed frame body is bolted to the plurality of weld pieces welded to the workpiece via the mounting bracket, so that the installation rigidity of the fixed frame body with respect to the workpiece can be increased. Thereby, processing accuracy can be raised. Since the plurality of welding pieces can be manufactured in a small size and light weight, the welding work can be facilitated, and the installation and removal workability of the fixed frame body can be improved.

  Moreover, the attachment processing machine according to the present invention has a mock-up having a shape approximate to a completed shape of the fixed frame body and having a lighter weight than the fixed frame body in the above-described configuration, and the mock-up includes the mounting bracket. The welding piece positioning hole for welding the said welding piece to the appropriate position of the said workpiece through the via is provided, It is characterized by the above-mentioned.

According to the above configuration, the welding pieces can be fixed to the plurality of mounting brackets attached to the mock-up welding piece positioning holes, and these welding pieces can be brought into contact with the workpiece simultaneously and welded as they are. . For this reason, it is possible to perform the welding operation much faster than positioning and welding each welding piece individually, and as a result, it is possible to improve the installation workability of the fixed frame body.
The mock-up only needs to be able to position each weld piece by the above method, and does not require exceptionally high accuracy. Therefore, the mock-up can be formed at a low weight and at a low cost, and can be reused.

  Further, the mounting machine according to the present invention is the above-described configuration, wherein the vibration of the fixed frame body during the processing is between the fixed frame body and the workpiece in the span between the plurality of mounting brackets. The stabilizer which suppresses is mounted.

  According to the above configuration, even if the span between the plurality of mounting brackets that fix the fixed frame body to the workpiece is long and easily resonates with vibration during machining, the resonance in the span is not fixed to the stabilizer. Therefore, it is possible to prevent a processing defect and a decrease in processing accuracy due to resonance.

  In the attachment processing machine according to the present invention, in the above configuration, rack gears are respectively disposed in the longitudinal direction on two opposing parallel side members of the fixed frame body to which the movable frame body is movably attached. On the other hand, a pinion gear that meshes with the rack gear and a gear shaft support part that supports the pinion gear are provided at both ends of the movable frame body, and a drive motor and a drive motor are provided at an intermediate part of the movable frame body. A driving force distribution part that distributes the driving force of the motor to the gear shaft support part at a constant speed, and connects the driving force distribution part and the gear shaft support part to transmit the driving force to the pinion gear. The driving force transmitting portion is arranged along the longitudinal direction inside the movable frame body.

  According to the above configuration, the driving force of the driving motor is distributed to each pinion gear provided at both ends of the movable frame body at a constant speed, and each pinion gear is disposed on the two opposing side members of the fixed frame body. Roll in the same direction along the rack gear. For this reason, the both ends of the movable frame body move at the same timing along the longitudinal directions of the two side members facing each other of the fixed frame body. Therefore, there is no concern that the movable frame body is inclined (galling) with respect to the side members of the fixed frame body. In addition, since only one drive motor is required, a simple, lightweight, and highly reliable structure can prevent the movable frame body from being tilted, enable smooth machining, and obtain high machining accuracy.

  In addition, the mounting machine according to the present invention has an operator standing on the lower side of the fixed frame body when the mounting machine is installed at a height and a vertical wall-shaped workpiece in the above configuration. It is characterized by the fact that a scaffold is provided.

  According to the above configuration, since it is not necessary to separately install a scaffold for workers, work related to the installation of the mounting machine is facilitated, and the number of parts is reduced compared to the case where the scaffold is installed separately. be able to. Furthermore, since the scaffold can be installed at the most suitable position with respect to the position of the attachment processing machine, it is possible to improve the workability of workers during processing.

  The attachment processing machine according to the present invention is characterized in that, in the above configuration, the scaffold has a shape for receiving chips generated when the processing machine cuts the workpiece.

  According to the above configuration, for example, when cutting is performed by installing the mounting machine at the height of a sharp wall-shaped workpiece, the chips are prevented from falling downward, and Safety can be ensured. Furthermore, when cutting on a ship, it is possible to prevent chips containing oil from falling on the sea surface and contribute to the preservation of the marine environment.

  Moreover, the processing method according to the present invention is to process a workpiece using the attachment processing machine having the above-described configuration, and the four side members, the movable frame body, and the processing machine, An assembly machine for assembling the attachment machine by assembling them together, and an attachment machine installation process for installing the assembled attachment machine on the workpiece; And a processing step for performing processing by the processing machine.

  According to the above processing method, the fixed frame body, which is the largest part constituting the attachment processing machine, is assembled after transporting each of the four side members disassembled in the vicinity of the processing object. be able to. For this reason, installation and removal work of an attachment processing machine can be made easy. Since a large workpiece can be cut by increasing the size of the fixed frame body, a versatile cutting method can be achieved.

  Further, the processing method according to the present invention is the above-described processing method, wherein a plurality of mounting brackets interposed between the fixed frame body and the processing object are provided at a later stage of the mounting processing machine installation step. It further comprises a flatness adjusting step of adjusting the flatness of the fixed frame body with respect to the workpiece by adjusting the dimension adjusting unit individually.

  According to the above processing method, the flatness and straightness of the fixed frame body can be obtained by individually adjusting the interval dimension adjusting portions of the plurality of mounting brackets after the mounting processing machine is installed on the processing object. it can. Therefore, the accuracy of the fixed frame body, that is, the processing accuracy of the processing object can be increased without being affected by the accuracy of the mounting surface of the processing object.

  Further, the processing method according to the present invention is a mock that has a shape approximate to a completed shape of the fixed frame body and is lighter in weight than the fixed frame body in the above processing method, prior to the attachment processing machine installation step. Temporarily fixing a plurality of weld pieces via a mounting bracket, and applying the mock-up to the workpiece, welding the plurality of weld pieces to the workpiece, and attaching with bolts A welding piece welding step for completely fixing the bracket to the weld piece; and a mockup removal step for removing the mockup leaving the welding piece and the mounting bracket welded to the workpiece, the attachment processing machine. In the installation process, the mounting processing machine that has been assembled is moved through the mounting bracket and the welding piece. Characterized in that the mount to the factory object.

  According to the above processing method, a plurality of welding pieces can be positioned simultaneously on the workpiece using a mock-up and can be welded as they are. Therefore, the positioning operation and the welding operation are speeded up, and the fixed frame body is installed. Can be improved. Since the mockup does not require the strength as in the fixed frame body, the mockup can be formed in a light weight and can be easily transported, and is economical because it can be used repeatedly at low cost.

  As described above, according to the present invention, since the fixed frame body, which is the largest part constituting the attachment processing machine, can be disassembled and assembled, its transportation and installation / removal are easy, and the versatility is high. A large workpiece can be cut with high machining accuracy.

It is a front view of the attachment processing machine which concerns on embodiment of this invention. It is a side view of the attachment processing machine by the II arrow view of FIG. It is a top view of the attachment processing machine by the III arrow view of FIG. It is the front view which expanded the movable frame body. It is a longitudinal cross-sectional view which follows the VV line of FIG. FIG. 6 is an enlarged view of a VI part in FIG. 5. It is a longitudinal cross-sectional view which follows the VII-VII line of FIG. It is a cross-sectional view which follows the VIII-VIII line of FIG. FIG. 3 is an enlarged view of a part IX in FIG. 2. FIG. 10 is a view on arrow X in FIG. 9. It is the XI section enlarged view of FIG. It is a longitudinal cross-sectional view which follows the XII-XII line | wire of FIG. It is a XIII arrow directional view of FIG. It is a side view of the attachment processing machine which shows the attachment condition of a scaffold. (A) is a side view of the mockup which shows the welding piece and the temporary fixing process of a mounting bracket, and (B) is a welding piece welding process. It is a figure which shows each process of the welding method which concerns on embodiment of this invention with a flowchart.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 is a front view of an attachment processing machine 1 according to an embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a plan view.
In this attachment processing machine 1, for example, a seating surface W of a rectangular opening O provided on a wall surface for attaching a large equipment to a ship hull V shown in FIG. 2 is flattened by a mill unit 3 (processing machine). Although it is for cutting, it may be applied to other uses such as grinding and drilling, and the use is not particularly limited. Hereinafter, description will be made assuming that the hull V is a processing object.

  The attachment processing machine 1 is mainly composed of a fixed frame body 5 having a rectangular frame shape. The fixed frame body 5 is installed on the hull V so as to surround the seat surface W of the opening O via a plurality of mounting brackets 6 arranged at predetermined intervals. The size of the fixed frame body 5 is, for example, 5900 mm in the longitudinal direction and 3500 mm in the lateral direction. In the following description and each drawing, the longitudinal direction (lateral direction) is the X-axis direction (first direction), the lateral direction (vertical direction) is the Y-axis direction (second direction), and the surface direction of the fixed frame body 5 A direction orthogonal to the direction (direction orthogonal to the paper surface in FIG. 1) is defined as a Z-axis direction (third direction).

The fixed frame body 5 is composed of four side members.
That is, a pair of upper and lower X-axis frames 5X extending in the X-axis direction and a pair of left and right Y-axis frames 5Y extending in the Y-axis direction are respectively connected to the vertical key 8 (right angle maintaining means: FIG. Are combined so that they are easily perpendicular to each other without causing backlash between the X-axis frame 5X and the Y-axis frame 5Y, and are firmly connected by a plurality of bolts and nuts 9 for disassembly and disassembly. Assembly is possible.

  Each of the X-axis frame 5X and the Y-axis frame 5Y is configured by a steel plate in a prismatic shape, or a columnar shape of an H cross section or a channel cross section. By connecting the X-axis frame 5X and the Y-axis frame 5Y using the vertical key 8 and the bolts and nuts 9, the fixed frame body 5 can be reliably assembled even outdoors on a ship.

  As shown in FIGS. 4 and 5, the movable frame body 11 extending in the Y-axis direction is supported by the upper and lower X-axis frames 5X of the fixed frame body 5, and the movable frame body 11 is slidable in the X-axis direction. ing. As shown in FIG. 6 and the like, the movable frame body 11 is formed in a box shape and a column shape by a steel plate, like the X-axis frame 5X and the Y-axis frame 5Y.

  Two traveling rails 13 are laid on the front surfaces of the upper and lower X-axis frames 5X, respectively (see FIGS. 2, 4, and 6). Rack gears 14 are installed along the X-axis direction at the upper edge of the upper X-axis frame 5X and the lower edge of the lower X-axis frame 5X, respectively. As shown in FIGS. 6 and 4, the traveling rail 13 of each X-axis frame 5 </ b> X is attached with a flat plate-like X moving table 16 via a linear bearing 15, and can slide along the traveling rail 13. It has become. The upper and lower ends of the movable frame body 11 are fixed to the upper and lower X moving bases 16 with bolts 17. The movable frame body 11 can be separated from the fixed frame body 5 by removing the bolts 17.

  As shown in FIGS. 7 and 8, an X-axis drive device 20 that moves the movable frame body 11 along the traveling rail 13 (in the X-axis direction) is built in the hollow movable frame body 11. ing. The X-axis drive device 20 includes a bevel gear unit 21 (gear shaft support) installed at both ends of the movable frame body 11, and a pinion gear 22 that is supported by the bevel gear unit 21 and meshes with the rack gear 14 of the X-axis frame 5X. And an X-axis drive motor 23 and a speed reducer 24 (drive force distribution unit) installed in an intermediate portion of the movable frame body 11 and a power transmission shaft 25 (drive force transmission unit).

  The reduction gear 24 is fixed inside the movable frame body 11, and the X-axis drive motor 23 is fixed to the reduction gear 24. The X-axis drive motor 23 is, for example, a servo motor, and its rotation shaft (not shown) extends in the Z-axis direction and passes through the speed reducer 24. The X-axis drive motor 23 protrudes outside the movable frame body 11 to facilitate maintenance. The power transmission shaft 25 is disposed along the longitudinal direction inside the movable frame body 11, and connects between the speed reducer 24 and the upper and lower bevel gear units 21.

  When the X-axis drive motor 23 is started, the driving force is decelerated at a predetermined reduction ratio by the speed reducer 24 and transmitted to the bevel gear unit 21 and the pinion gear 22 via the power transmission shaft 25. As a result, the upper and lower pinion gears 22 rotate in mutually different rotation directions and roll in the same direction along the rack gear 14 of the X-axis frame 5X. For this reason, the both ends of the movable frame body 11 move at the same timing along the longitudinal direction of the upper and lower X-axis frames 5X. As shown in FIG. 1, a flexible cable 26 is provided on the upper surface of the upper X-axis frame 5X, and power is supplied from a power source (not shown) to the X-axis drive motor 23 regardless of the position of the movable frame body 11. Is to be supplied. Further, the X-axis drive device 20 may be other methods such as a ball screw method, a pulley / belt method, and a pulley / wire method, regardless of the rack / pinion method.

  By adopting such an X-axis drive device 20, there is no concern that the movable frame body 11 is inclined (galling) with respect to the Y-axis frame 5 Y of the fixed frame body 5. In addition, since only one drive motor is required, a simple, lightweight, and highly reliable structure can prevent the movable frame body 11 from being inclined to enable smooth machining, and high machining accuracy can be obtained.

  As shown in FIGS. 1, 4, 5, and 8, the above-described mill unit 3 (processing machine) is slidably attached to the movable frame body 11 in the Y-axis direction and the Z-axis direction. Instead of the mill unit 3, other types of processing machines such as a grinding unit and a drill unit may be attached. The mill unit 3 has a cutting shaft 28 along the Z-axis direction. A rotary cutter 29 (processing tool) is attached to one end (end on the hull V side) of the cutting shaft 28 and a driven pulley 30 is connected to the other end. Is attached.

  A cutting motor 31 is mounted on the mill unit 3, and a drive belt 33 is wound between a drive pulley 32 attached to the main shaft of the cutting motor 31 and a driven pulley 30 of the cutting shaft. When the cutting motor 31 is started, the rotation of the main shaft is decelerated at a predetermined reduction ratio, the cutting shaft 28 is rotated, and the rotary cutter 29 is driven. The rotary cutter 29 can move so as to give a required feed amount in the Z-axis direction by rotating a feed handle 34 provided on the side surface of the mill unit 3. Instead of the feed handle 34 or together with the feed handle 34, an automatic feed device that drives and rotates the handle 34 may be provided.

  As shown in FIG. 8, two traveling rails 38 are laid on the side surface of the movable frame body 11 along the Y-axis direction. These travel rails 38 are provided with a flat Y-shaped moving table 40 via linear bearings 39 so that they can slide along the travel rails 38. The mill unit 3 is fixed to the Y moving table 40 with a plurality of bolts 41. If these bolts 41 are removed, the mill unit 3 can be separated from the movable frame body 11, but is usually transported in a state combined with the movable frame body 11.

  As shown in FIGS. 1, 4, 5, and 8, in the vicinity of the movable frame body 11, the mill unit 3 is moved along the traveling rail 38 of the movable frame body 11 (in the Y-axis direction). A shaft driving device 44 is installed. The Y-axis drive device 44 includes bearing portions 45 installed at both ends of the movable frame body 11, a feed screw shaft 46 that is supported by the bearing portions 45 and extends along the Y-axis direction, and the feed screw shaft 46. And a ball screw mechanism 48 fixed to the Y moving base 40. A feed screw shaft 46 passes through the ball screw mechanism 48. Such a ball screw method of the Y-axis drive device 44 can reduce the weight of the drive device and move in the vertical direction (Y-axis direction) as the gravity direction, compared with the rack / pinion method of the X-axis drive device 20. Positioning accuracy can be ensured.

  When the Y-axis drive motor 47 is activated, the feed screw shaft 46 rotates and the ball screw mechanism 48 and the mill unit 3 move in the Y-axis direction. As shown in FIGS. 1, 4, and 5, a flexible cable 49 is provided on the side surface of the movable frame body 11 on the side of the mill unit 3, and is not shown regardless of the position of the mill unit 3. Electric power is supplied from the power source to the cutting motor 47. Further, in the X-axis direction and the Y-axis direction, the movable range and the feeding speed are controlled and driven by a teaching device (not shown) separately.

  The rotary cutter 29 of the mill unit 3 includes a relative movement of the movable frame body 11 with respect to the fixed frame body 5 (movement in the X-axis direction) and a relative movement of the mill unit 3 with respect to the movable frame body 11 (movement in the Y-axis direction). And the feed of the rotary cutter 29 itself in the Z-axis direction moves the rectangular inner region of the fixed frame body 5 in the three-dimensional direction (three directions of the X, Y, and Z axes) to the hull V. Can be cut (see FIG. 5).

  For this reason, it can cut freely, without receiving restrictions by the surface shape of hull V (refer to Drawing 2) which is a processing object, and the shape of opening O and its seating surface W. In particular, not only a flat cutting process but also a process of forming a step or a process of making a hole can be handled.

  When the attachment processing machine 1 is attached to the hull V, which is an object to be processed, first, a plurality of welding pieces 52 are welded to the hull V as shown in FIGS. These welding pieces 52 are small pieces made of, for example, a rectangular steel plate, and are welded so that the surface direction thereof is perpendicular to the surface of the hull V. The upper weld piece 52 has two bolt holes formed vertically, and the lower weld piece 52 has three bolt holes formed vertically. In this welding, welding is performed while positioning using a mock-up 85 and a mounting bracket 6 which will be described later.

  The aforementioned mounting bracket 6 is fixed to these weld pieces 52 with fixing bolts 55, and the X-axis frame 5 </ b> X of the fixing frame body 5 is fixed to the mounting brackets 6 with fixing bolts 56. As shown in FIG. 9 and FIG. 10, the mounting bracket 6 has a vertical plate-like workpiece-side fastening plate 60 that is overlapped with the welding piece 52 and fastened by a fixing bolt 55, and the workpiece-side fastening plate 60. The frame side fastening plate 62 is welded at right angles and applied to the X-axis frame 5X and fastened by the fixing bolt 56, and a pair of reinforcing pieces 63 that reinforce the space between the fastening plates 60 and 62. ing.

  In the present embodiment, among the X-axis frame 5X and the Y-axis frame 5Y that constitute the fixed frame body 5, only the X-axis frame 5X that needs to support the movable frame body 11 and that requires high mounting rigidity is provided on each of the upper and lower sides. The three are fixed to the hull V via six mounting brackets 6 in total, and the mounting bracket 6 is not provided on the Y-axis frame 5Y. As a result, the number of the mounting brackets 6 can be minimized and the configuration can be simplified. However, a mounting bracket 6 may be additionally installed on the Y-axis frame 5Y for processing a larger size or for processing that requires further strength in the Y-axis direction due to processing speed, processing amount, or the like.

  Further, as shown in FIG. 9, a horizontal adjustment plate 66 is welded to the lower edge of the frame side fastening plate 62 of the lower mounting bracket 6, and a height adjusting bolt 67 screwed into the lower adjustment bracket 66 from below. The height of the fixed frame body 5 with respect to the mounting bracket 6 can be finely adjusted up and down by tightening or loosening.

  Further, four interval adjusting bolts 68 are screwed into the four corners of the frame side fastening plate 62 as an interval dimension adjusting portion on the mounting bracket 6. As shown in FIG. 9, a bolt 56 for fastening to the fixed frame body 5 is passed between two spacing adjustment bolts 68 arranged vertically in a side view. The spacing dimension D between the planned processing surface of the hull V wall surface to be processed and the fixed frame body 5 shown in FIG. 10 increases when the four spacing adjustment bolts 68 are tightened, and decreases when they are loosened. The spacing dimension D can be finely adjusted. At the time of this fine adjustment, it is necessary to loosen the bolt 56 or to rotate it in the opposite direction simultaneously with the rotation of the distance adjusting bolt 68.

  In the attachment machine 1 configured as described above, the fixed frame body 5 that forms the basis of the attachment processing machine 1 uses the vertical key 8 at the end connecting portion of the X-axis frame 5X and the Y-axis frame 5Y to each connecting portion. They are combined so that they are easily perpendicular to each other without any backlash, and are firmly connected by a plurality of bolts and nuts 9 and can be disassembled and assembled.

  Therefore, when the fixed frame body 5 is installed on the hull V, the X-axis frame 5X and the Y-axis frame 5Y are independently transported near the object to be processed (hull V), and these are temporarily fixed. Can be assembled and attached to the hull V after the movable frame body 11 is attached thereto. When removing, the fixed frame body 5 (including the movable frame body 11) can be removed, and the X-axis frame 5X, the Y-axis frame 5Y, and the movable frame body 11 can be individually removed, disassembled, and transported.

  Therefore, it is not necessary to carry the entire large fixed frame body 5 (including the movable frame body 11), and the installation and removal work can be facilitated with a simple and lightweight configuration.

Moreover, if the size of the fixed frame body 5 is increased, a large workpiece can be cut, and the movement trajectory of the mill unit 3 is not limited to a circle or the like. Versatile can be demonstrated. Further, since the fixed frame body 5 can be installed from the X horizontal direction to the vertical direction regardless of the installation angle, the degree of freedom of work can be increased.
Note that by increasing the size of the fixed frame body 5, it is possible to expand the cutting area without changing the basic component configuration, so that the optimal fixed frame body 5 is adapted to the size of the workpiece. Can be selected, and higher versatility can be exhibited.

  The fixed frame body 5 configured in this way is installed on the hull V via a plurality of mounting brackets 6 arranged at a predetermined interval, and each of the mounting brackets 6 has a fixed frame body 5 and a hull V. Since the distance adjustment bolt 68 capable of finely adjusting the distance dimension D between the fixed frame body 5 and the mounting frame 6 is installed on the hull V, the distance adjustment bolts 68 of the plurality of mounting brackets 6 are individually adjusted. Thus, the flatness and straightness of the fixed frame body 5 (X-axis frame 5X) with respect to the planned processing surface of the hull V can be obtained. Therefore, the accuracy of the fixed frame body 5, that is, the processing accuracy of the processing object can be increased without being affected by the accuracy of the mounting surface of the hull V.

  In addition, since the fixed frame body 5 is installed on the workpiece (hull V) as described above, an attachment method for obtaining the flatness and straightness of the fixed frame body 5 can be adopted. There is no problem even if the assembly accuracy of the shaft frame 5X and the Y-axis frame 5Y is somewhat lowered. For this reason, after assembling the X-axis frame 5X and the Y-axis frame 5Y into a rectangular shape on site, it can be quickly attached to the object to be processed, and the time required for transportation, installation, and removal can be shortened. it can.

  Further, since a plurality of welding pieces 52 are welded to the hull V and the fixing frame body 5 is fastened to the mounting bracket 6 fixed to the welding pieces 52 with bolts 55, the fixing frame body 5 is fastened with the bolts 56. The installation rigidity of the frame body 5 can be increased. That is, the hull V itself serves as a reinforcing member that maintains the rigidity of the fixed frame body 5. Thereby, it is possible to prevent the fixed frame body 5 (X-axis frame 5X) from being warped by a reaction force at the time of cutting, and to improve the processing accuracy. Since the plurality of welding pieces 52 can be manufactured in a small size and light weight, the welding work can be facilitated, and the installation and removal workability of the fixed frame body 5 can be improved.

Incidentally, as shown in FIG. 3, a stabilizer 71 is provided between the X-axis frame 5 </ b> X and the hull V between the plurality of mounting brackets 6 that attach the X-axis frame 5 </ b> X of the fixed frame body 5 to the hull V. It is better to suppress the vibration (resonance) of the X-axis frame 5X during the cutting.
For example, as shown in FIG. 11 to FIG. 13, the stabilizer 71 connects a pair of face plates 72 formed of steel plates by a connecting plate 73 having an H-shaped cross section. The stabilizer bolt 74 is screwed from the inner side of 72 toward the outer side.

  If such a stabilizer 71 is inserted between the hull V and the X-axis frame 5X and the stabilizer bolt 74 is tightened so that the stabilizer 71 is elastically mounted (stretched and attached), it is attached to the X-axis frame 5X. Even when the span between the brackets 6 is long, the resonance of the X-axis frame 5X between the mounting brackets 6 can be effectively suppressed, and machining defects and degradation of machining accuracy due to the resonance are prevented. be able to.

  On the other hand, when the attachment processing machine 1 is installed on a workpiece with a high height and a vertical wall shape, as shown in FIG. 14, the lower side of the fixed frame body 5, that is, the lower X-axis frame 5X A scaffold 78 on which an operator can stand is installed. The scaffold 78 includes a scaffold fixing stay 79 (see also FIG. 1) provided on the lower X-axis frame 5X, and a scaffold plate extending from the scaffold fixing stay 79 to the near side (the object to be processed). 80 and a fence 81 (handrail) that stands up from the free end of the scaffold plate 80. The scaffold plate 80 can be adjusted horizontally by inserting an appropriate adjustment jig in accordance with the inclination angle θ of the attachment processing machine 1.

  If such a scaffold 78 is provided in the attachment processing machine 1, it is not necessary to separately install a scaffold for the worker. Therefore, work related to the installation of the attachment processing machine 1 is facilitated, and the scaffold 78 is separated. The number of parts can be reduced compared to the case of installation. Furthermore, since the scaffold 78 can be installed at the most suitable position with respect to the position of the attachment processing machine 1, the workability of the worker at the time of processing can be improved.

  It is desirable that the scaffold 78 has a shape for receiving chips generated when the mill unit 3 cuts the workpiece. That is, the scaffold plate 80 is made of a porous material such as a net (expanded metal) for weight reduction, but the fallen chips can remain by spreading a special protective sheet on the scaffold plate 80 or the like. To. Moreover, you may extend only the scaffold plate 80 to the process target object side from the position shown in FIG. Further, a suction device (not shown) may be attached to suck chips that fall on the scaffold plate 80.

  In this way, by receiving the chips generated at the time of cutting by the scaffold 78, for example, when the attachment processing machine 1 is installed at a high position on a sharp wall-shaped object to be cut, the chips are moved downward. It can prevent falling, and can secure the safety of the worker who is below. Furthermore, when cutting on a ship, it is possible to prevent chips containing oil from falling on the sea surface and contribute to the preservation of the marine environment.

  FIG. 15 is a mock-up 85 of the fixed frame body 5 used when the above-mentioned welding piece 52 is temporarily fixed to a workpiece such as the hull V and welded. The mock-up 85 has a shape approximate to the completed shape of the fixed frame body 5 and is configured to be lighter than the fixed frame body 5.

  As shown in FIGS. 2, 9, and 10, the mock-up 85 is provided with a mounting bracket positioning hole 86 at a position that matches the position where the mounting bracket 6 is fixed in the fixed frame body 5. The mounting bracket positioning holes 86 are formed at the same interval as the bolt holes through which the bolts 56 are inserted in the frame side fastening plate 62 (see FIGS. 9 and 10) of the mounting bracket 6.

  When welding the welding piece 52 to the hull V, first, as shown in FIG. 15A, the mounting bracket 6 is fixed to each mounting bracket positioning hole 86 of the mockup 85 via the bolt 56, and then the welding piece 52 is welded. Are fastened with bolts 55. Next, the mockup 85 to which the welding piece 52 is temporarily fixed is lifted by a crane or the like (not shown) and applied to a predetermined position of the hull V. At this time, each welding piece 52 is abutted against the hull V. Then, as shown in FIG. 15B, each welding piece 52 is welded to the hull V and is permanently fixed.

  If the welding piece 52 is positioned using such a mock-up 85 and welded to the hull V, the plurality of welding pieces 52 can be simultaneously positioned on the hull V and welded as they are. For this reason, it is possible to perform the welding work much faster than positioning and welding each welding piece 52 individually, and as a result, the installation workability of the fixed frame body 5 can be improved.

  The mock-up 85 needs only to fix the mounting bracket 6 to each mounting bracket positioning hole 86 via the bolt 56 and then to position the welding piece 52, and since a particularly high accuracy is not required, it is not limited to steel. It is economical because it can be made light and easy to transport with CFRP, wood, etc., and can be reused at low cost.

FIG. 16 is a flowchart showing each step of the welding method according to the embodiment of the present invention.
First, in step S1, the mounting bracket 6 is fixed to the mock-up 85 with the bolt 56, and then the welding piece 52 is temporarily fixed with the bolt 55 (welding piece temporary fixing step).
Next, in step S2, the welding piece 52 is welded to the hull V, which is a workpiece, and the mounting bracket 6 is completely fixed with the bolt 55 (welding piece welding step).

Next, in step S3, the mockup is removed leaving the weld piece 52 and the mounting bracket 6 welded to the hull V (mockup removal process).
Next, in step S4, the X-axis frame 5X, the Y-axis frame 5Y, the movable frame body 11, the mill unit 3 and the like are each transported alone to the vicinity of the hull V, and connected and fixed to each other to attach the mounting machine 1. Assemble (Assembly processing machine assembly process).
Next, in step S5, the attachment processing machine 1 assembled in step S4 is fixed to the attachment bracket 6 and installed on the hull V (attachment processing machine installation step).

Next, in step S6, the tightness of the distance adjusting bolt 68 of each mounting bracket 6 is adjusted to adjust the flatness of the fixed frame body 5 (flatness adjusting step).
Next, cutting is performed in step S7 (cutting process).
When the cutting process is completed, finally, in step S8, the attachment processing machine 1 is disassembled and removed (disassembly / removal process).

  According to the above cutting method, the fixed frame body 5 which is the largest part constituting the attachment processing machine 1 is disassembled into four single X and Y axis frames 5X and 5Y, and each of them is processed. It can be assembled after being transported near the hull V. For this reason, the installation and removal work of the attachment processing machine 1 can be facilitated. And if the size of the fixed frame body 5 is enlarged, a large-sized workpiece can be cut, so that a highly versatile cutting method can be achieved.

  Further, after the fixed frame body 5 is installed on the workpiece, the flatness of the fixed frame body 5 is adjusted by individually adjusting the distance between the mounting brackets 6. The accuracy of the fixed frame body 5, that is, the processing accuracy of the processing object can be increased without being affected by the accuracy of the mounting surface.

  It should be noted that the present invention is not limited to the configuration of the above-described embodiment, and can be appropriately modified or improved within a scope not departing from the gist of the present invention. Are also included in the scope of rights of the present invention. For example, the size of the attachment processing machine 1 and the aspect ratio of the fixed frame body 5 can be arbitrarily set. Needless to say, the object to be processed is not limited to the hull V, and can be applied to a wide range of objects.

1 Mounting machine 3 Mill unit (cutting machine)
5 Fixed frame body 5X X-axis frame (side member)
5Y Y-axis frame (side member)
6 Mounting bracket 8 Vertical key (right angle maintaining means)
11 Movable frame body 14 Rack gear 21 Bevel gear unit (gear shaft support)
22 Pinion gear 23 X-axis drive motor (drive motor)
24 Reducer (driving force distribution part)
25 Power transmission shaft (driving force transmission part)
29 Rotary cutter (machining tool)
52 Welding piece 68 Spacing adjustment bolt (Spacing dimension adjustment section)
71 Stabilizer 78 Scaffold 85 Mock-up 86 Welding piece positioning hole D Spacing dimension between fixed frame body and workpiece S1 Welding piece temporary fixing process S2 Welding piece welding process S3 Mock-up removal process S4 Attachment processing machine assembly process S5 Installation Processing machine installation process S6 Flatness adjustment process S7 Cutting process S8 Disassembly / removal process V Hull (work object)
X-axis direction (first direction)
Y-axis direction (second direction Z-axis direction (third direction)

Claims (7)

The four side members can be disassembled and assembled, and the longitudinal direction of the two opposing side members extends in the first direction, and the longitudinal direction of the other two opposing side members is the first direction. It extends in a second direction orthogonal to each other, and is assembled while maintaining the extending direction of each side member by the right angle maintaining means provided at each end of the four side members, and exhibits a rectangular frame shape, A fixed frame body that can be installed on the workpiece;
A movable frame body extending in the second direction and attached to the fixed frame body so as to be relatively movable along the first direction;
It is attached to the movable frame body so as to be relatively movable along the second direction, and a processing tool is sent in a third direction orthogonal to the surface direction formed by the first direction and the second direction. A processing machine that can move,
A plurality of mounting brackets disposed at a predetermined interval between the fixed frame body and the workpiece to be fixed;
A plurality of weld pieces welded to the workpiece;
A bolt for bolting the mounting bracket to the weld piece;
A bolt for bolting the fixed frame body to the mounting bracket;
It has a shape that approximates the completed shape of the fixed frame body, and comprises a mock-up that is lighter than the fixed frame body ,
The mounting bracket includes an interval dimension adjustment unit that can finely adjust an interval dimension between the fixed frame body and the workpiece.
The mock-up includes a welding piece positioning hole for welding the welding piece to an appropriate position of the workpiece through the mounting bracket,
The processing tool is:
Relative movement of the movable frame body with respect to the fixed frame body in the first direction;
Relative movement of the processing machine in the second direction with respect to the movable frame body;
With the feed movement in the third direction orthogonal to the surface direction of the fixed frame body, the rectangular inner region of the fixed frame body is moved in a three-dimensional direction to move the workpiece. An attachment processing machine characterized by processing. The four side members can be disassembled and assembled, and the longitudinal direction of the two opposing side members extends in the first direction, and the longitudinal direction of the other two opposing side members is the first direction. It extends in a second direction orthogonal to each other, and is assembled while maintaining the extending direction of each side member by the right angle maintaining means provided at each end of the four side members, and exhibits a rectangular frame shape, A fixed frame body that can be installed on the workpiece;
A movable frame body extending in the second direction and attached to the fixed frame body so as to be relatively movable along the first direction;
It is attached to the movable frame body so as to be relatively movable along the second direction, and a processing tool is sent in a third direction orthogonal to the surface direction formed by the first direction and the second direction. A processing machine that can move,
A plurality of mounting brackets disposed at a predetermined interval between the fixed frame body and the workpiece to be fixed; and
The mounting bracket includes an interval dimension adjustment unit that can finely adjust an interval dimension between the fixed frame body and the workpiece.
The processing tool is:
Relative movement of the movable frame body with respect to the fixed frame body in the first direction;
Relative movement of the processing machine in the second direction with respect to the movable frame body;
With the feed movement in the third direction orthogonal to the surface direction of the fixed frame body, the rectangular inner region of the fixed frame body is moved in a three-dimensional direction to move the workpiece. processing stomach line,
In a span between the plurality of mounting brackets, a stabilizer that suppresses vibration of the fixed frame body during the processing is mounted between the fixed frame body and the workpiece. Mounting machine. The four side members can be disassembled and assembled, and the longitudinal direction of the two opposing side members extends in the first direction, and the longitudinal direction of the other two opposing side members is the first direction. It extends in a second direction orthogonal to each other, and is assembled while maintaining the extending direction of each side member by the right angle maintaining means provided at each end of the four side members, and exhibits a rectangular frame shape, A fixed frame body that can be installed on the workpiece;
A movable frame body extending in the second direction and attached to the fixed frame body so as to be relatively movable along the first direction;
It is attached to the movable frame body so as to be relatively movable along the second direction, and a processing tool is sent in a third direction orthogonal to the surface direction formed by the first direction and the second direction. A processing machine that can move,
A plurality of mounting brackets disposed at a predetermined interval between the fixed frame body and the workpiece to be fixed; and
The mounting bracket includes an interval dimension adjustment unit that can finely adjust an interval dimension between the fixed frame body and the workpiece.
The processing tool is:
Relative movement of the movable frame body with respect to the fixed frame body in the first direction;
Relative movement of the processing machine in the second direction with respect to the movable frame body;
With the feed movement in the third direction orthogonal to the surface direction of the fixed frame body, the rectangular inner region of the fixed frame body is moved in a three-dimensional direction to move the workpiece. Process,
In the case where the mounting machine is installed at a high place and a vertical wall workpiece,
An attachment processing machine, wherein a scaffold on which an operator can stand is provided on a lower side of the fixed frame body . While the rack frame is disposed in the longitudinal direction on two opposing parallel side members of the fixed frame body to which the movable frame body is movably attached,
Provided at both ends of the movable frame body are a pinion gear that meshes with the rack gear, and a gear shaft support portion that supports the pinion gear,
Furthermore, a driving motor is installed in the middle part of the movable frame body, and a driving force distribution unit that distributes the driving force of the driving motor to the gear shaft support part at a constant speed,
A driving force transmitting portion for connecting the driving force distributing portion and the gear shaft support portion to transmit the driving force to the pinion gear is disposed along the longitudinal direction inside the movable frame body. The attachment processing machine according to any one of claims 1 to 3 . The attachment scaffolding machine according to claim 3 , wherein the scaffold has a shape for receiving chips generated when the processing machine cuts the workpiece. A processing method for processing a workpiece using the attachment processing machine according to any one of claims 1 to 3 ,
The four side members, the movable frame body, and the processing machine are each transported as a single unit to the vicinity of the object to be processed, and they are assembled together to assemble the mounting processing machine.
A mounting machine installation step of installing the assembled mounting machine on the workpiece;
A processing step of performing processing by the processing machine;
By individually adjusting the interval dimension adjusting portions of the plurality of mounting brackets interposed between the fixed frame body and the workpiece,
A flatness adjustment step of adjusting the flatness of the fixed frame body with respect to the workpiece;
The processing method characterized by comprising. In the previous stage of the mounting machine installation process,
Welding piece temporary fixing step of temporarily fixing a plurality of welding pieces via a mounting bracket to a mock-up that is lighter than the fixed frame body, and having a shape approximate to the completed shape of the fixed frame body,
A welding piece welding step of applying the mock-up to the workpiece, welding the plurality of weld pieces to the workpiece, and completely fixing a mounting bracket to the weld piece with a bolt;
A mock-up removal step of removing the mock-up leaving the welding piece and the mounting bracket welded to the workpiece, further comprising:
The processing method according to claim 6 , wherein in the attachment processing machine installation step, the attachment processing machine that has been assembled is installed on the workpiece through the attachment bracket and the welding piece.

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