Gantry-type perforation device

Abstract

To provide a perforation device that includes both a flame-type marking section and an inkjet-type marking section, and suppresses the risk of fire or the like during marking operations.SOLUTION: A perforation device 1 comprises: a flame section 50 that is configured to move along X-axis and Y-axis directions and performs marking by flame on a workpiece surface W1 of a workpiece W by melt-spraying metal powder together with flame from a flame melt-spraying section 51; an inkjet section 60 that is connected to the flame section 50 in alignment with the Y-axis direction, moves together with the flame section 50, discharges ink 62 from an ink discharge section 61 and performs marking on the workpiece surface W1 by inkjet printing; and a connection and detachment mechanism section 70 that is interposed between the flame section 50 and the inkjet section 60, and enables connection and detachment of the flame section 50 and the inkjet section 60.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a gantry-type drilling device, and more particularly to a gantry-type drilling device capable of marking lines and the like. [Background technology]

[0002] Conventionally, in the manufacture of building construction materials and the like, a drilling operation (drilling process) is sometimes carried out to make holes in thick plates made of metal materials such as steel. When performing drilling operations on such metal materials, for example, a conventionally well-known drilling device such as a radial drilling machine is known to be used. Furthermore, as another drilling device, a gantry-type drilling device ("gantry drill") is known to be used (for example, see Patent Document 1 and Patent Document 2).

[0003] A gantry-type drilling apparatus (hereinafter simply referred to as a "drilling apparatus") is mainly composed of a mounting table on which a workpiece to be drilled (e.g., a thick steel plate or the like) is placed and supported from below, a pair of guide rails arranged along the longitudinal direction (X-axis) of the mounting table, a gate-shaped gantry unit supported by the guide rails and movable along the X-axis along the guide rails, a drill unit attached to the gantry unit and having a drill drill that is movable along a Y-axis direction perpendicular to the X-axis of the mounting table, and a drill elevating mechanism that moves the drill drill to a desired position on the workpiece along the X-axis and Y-axis and then elevates the drill drill along a Z-axis (up-down direction) perpendicular to the X-axis and Y-axis. By using this gantry-type drilling apparatus and adjusting the drill diameter of the drill part attached to the drill drill to be used, a hole of a desired diameter can be drilled at a predetermined drilling position on the workpiece.

[0004] In the drilling device, coordinate positions are preprogrammed to control the amount of movement of the drill drill in the X-axis and Y-axis directions, and the amount of elevation in the Z-axis direction, and three-dimensional numerical control (NC) is performed so that the drill tip of the drill drill moves to those coordinate positions. As a result, even when drilling multiple holes in a workpiece, by starting the drilling program, the drill drill can be moved sequentially to the specified coordinate positions to perform the drilling work.

[0005] At this time, before the drilling work is performed using a drill bit, marking work (scribing work) is carried out on the surface of the workpiece to indicate the welding position using a + mark, an x ​​mark, etc., in preparation for the welding process that will be carried out as the next process.

[0006] Here, the marking work is performed using a marking device (scribing device) that is pre-installed on the drilling device, moves along the X-axis and Y-axis directions, and can perform markings on the surface (work surface) of a metal material (workpiece) such as a thick steel plate.

[0007] A specific example of a marking device is a "flame marking device" that sprays metal powder onto the surface of a workpiece together with a high-temperature flame to bake a coating onto the surface of the workpiece. Furthermore, in recent years, with the advancement of inkjet printing technology, an "inkjet marking device" has become known that uses this technology to eject ink directly onto the surface of a workpiece to print line drawings such as scribe lines.

[0008] Here, the flame marking device is a well-known device with a relatively simple structure that can quickly and inexpensively form scribed lines on the surface of a workpiece, whereas the inkjet marking device can not only mark simple cross marks, cross marks, or scribed lines such as straight lines, but also directly print numbers or letters or the like on the surface of the workpiece for product management, or print barcodes or two-dimensional barcodes, for example.

[0009] Therefore, in the case of conventional punching devices, it has been common to consider the characteristics of each marking device and to attach either one of these marking devices to the punching device. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] Japanese Patent Application Publication No. 2019-084619 [Patent Document 2] Japanese Patent Application Publication No. 2019-084620 Summary of the Invention [Problem to be solved by the invention]

[0011] However, flame marking devices spray metal powder with a high-temperature flame, which can cause the work surface and the area around the drilling device to become very hot during the marking process. This can make the marking process dangerous. In addition, compared to inkjet marking devices, the lines that are baked on tend to be thicker, and markings that include fine lines such as barcodes or two-dimensional barcodes cannot be performed.

[0012] On the other hand, in the case of inkjet marking devices, the ejected ink may not be able to be fixed on some workpiece surfaces, or marking may be difficult when the workpiece surface is wet. In other words, the use of inkjet marking devices is sometimes limited depending on the condition of the workpiece surface onto which the ink is ejected.

[0013] As described above, the flame marking device and the inkjet marking device each have their own advantages and disadvantages. Therefore, in order to compensate for the disadvantages of each marking method, there is a need for the development of a perforating device that is equipped with both a flame marking device and an inkjet marking device.

[0014] However, the ink used in inkjet marking devices generally contains organic solvents. Therefore, if a flame marking device is placed close to the ink ejection section of an inkjet marking device or an ink tank that stores the ink, there is a possibility of a fire occurring due to flames or ink exposed to high temperatures. Therefore, in the case of a punching device equipped with both a flame marking device and an inkjet marking device, sufficient consideration and measures must be taken to prevent the risk of such a fire.

[0015] Therefore, in view of the above-mentioned situation, the present invention aims to provide a drilling device that is configured to include both a flame marking device and an inkjet marking device and that is capable of reducing the risk of fires and other hazards when carrying out marking work. [Means for solving the problem]

[0016] According to the present invention, a drilling device that solves the above problems is provided.

[0017] [1] A gantry-type drilling device that displaces the drilling position of a drill drill along an X-axis direction and a Y-axis direction perpendicular to the X-axis direction and drills a workpiece with the drill drill, the gantry-type drilling device comprising: a flame marking unit that is formed to be movable along the X-axis direction and the Y-axis direction and sprays metal powder together with a flame from a flame spray unit to mark the workpiece surface with the flame; an inkjet marking unit that is connected to the flame marking unit so that the Y-axis direction is aligned, moves together with the flame marking unit, ejects ink from an ink ejection unit, and marks the workpiece surface by inkjet printing; and a connection and detachment mechanism that is interposed between the flame marking unit and the inkjet marking unit and can connect and detach the flame marking unit and the inkjet marking unit.

[0018] [2] The connecting and detaching mechanism further comprises: a mechanism main body connected to the inkjet marking unit; a rod cylinder attached to the mechanism main body with its longitudinal direction aligned with the Y-axis direction; a pair of cylinder shafts protruding from the respective cylinder ends of the rod cylinders and capable of extending and contracting along the Y-axis direction; a first main link unit rotatably connected to the shaft end of one of the cylinder shafts and having a first engaging portion engageable with a moving-side stopper connected to the flame marking unit and movable along the Y-axis direction; a first link mechanism unit having a first auxiliary link unit rotatably connecting the first fixed portion of the mechanism main body and the first main link unit near their centers; a second main link unit rotatably connected to the shaft end of the other cylinder shaft and having a second engaging portion engageable with a fixed-side stopper formed separately from the mechanism main body; and a second link mechanism unit having a second auxiliary link unit rotatably connecting the second fixed portion of the mechanism main body and the second main link unit near their centers.

[0019] [3] The gantry-type drilling device described in [2] above is switchable between a disconnection mode in which, when using the flame marking unit to mark the work surface with a flame, the connection mechanism controls the extension and contraction of the pair of cylinder shafts to disengage the first engagement unit and the moving side stopper and engage the second engagement unit and the fixed side stopper, thereby retracting the inkjet marking unit to a predetermined standby position, and a connection mode in which, when using the inkjet marking unit to mark the work surface using inkjet printing technology, the connection mechanism controls the extension and contraction of the pair of cylinder shafts to engage the first engagement unit and the moving side stopper and disengage the second engagement unit and the fixed side stopper, thereby enabling the inkjet marking unit retracted to the standby position to move. [Effects of the Invention]

[0020] The gantry-type drilling device of the present invention includes both a flame marking unit and an inkjet marking unit, and can mark the surface of a workpiece by utilizing the advantages of each marking method. In particular, the flame marking unit and the inkjet marking unit are configured to be connectable and detachable to each other via a connecting and detaching mechanism. Therefore, in marking work using the inkjet marking unit, marking can be performed using inkjet printing technology while cooperating with the movement of the flame marking unit. In other words, the inkjet marking unit can move along the X-axis and Y-axis directions together with the flame marking unit.

[0021] On the other hand, when marking with the flame marking unit, the inkjet marking unit, which poses a risk of fire, can be detached from the flame marking unit and moved to a pre-defined standby position. This reduces the possibility that the inkjet marking unit (especially the ink discharge unit and ink tank) will be exposed to flames or high temperatures from the fire marking unit, thereby reducing the risk of fires and other issues occurring during marking work with the flame marking unit. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an explanatory diagram showing a schematic configuration of the entire punching device of the present embodiment as viewed from above. [Figure 2] 1 is an explanatory diagram seen from above showing a schematic configuration of the flame unit, inkjet unit, and connecting / detaching mechanism unit and their surroundings in the punching device of the present embodiment. FIG. [Figure 3] 10 is an explanatory side view showing an example of the operation of connecting and disconnecting the flame unit and the inkjet unit by the connecting and disconnecting mechanism. FIG. [Figure 4] 10 is an explanatory side view showing an example of the operation of connecting and disconnecting the flame unit and the inkjet unit by the connecting and disconnecting mechanism. FIG. [Figure 5]10 is an explanatory side view showing an example of the operation of connecting and disconnecting the flame unit and the inkjet unit by the connecting and disconnecting mechanism. FIG. [Figure 6] 10 is an explanatory side view showing an example of the operation of connecting and disconnecting the flame unit and the inkjet unit by the connecting and disconnecting mechanism. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0023] The punching device and punching method of the present invention will be described in detail below with reference to the drawings. The punching device and punching method of the present invention are not limited to the following embodiments, and various design changes, modifications, improvements, etc. can be made without departing from the scope of the present invention.

[0024] Figure 1 is an explanatory diagram viewed from above showing the overall schematic configuration of the drilling device 1 of this embodiment, Figure 2 is an explanatory diagram viewed from above showing the schematic configuration of the flame section 50, inkjet section 60, and connecting / detaching mechanism section 70 in the drilling device 1 of this embodiment, and Figures 3 to 6 are explanatory diagrams viewed from the side showing an example of the connecting and detaching operation of the flame section 50 and inkjet section 60 by the connecting / detaching mechanism section 70.

[0025] As shown primarily in Figures 1 and 2, the drilling device 1 of one embodiment of the present invention is a so-called "gantry type" drilling device 1, and is mainly composed of a mounting table 10, a pair of X-axis guide rails 20a, 20b, a gantry unit 30, a drill unit 40, and a rolling control unit (not shown).

[0026] By using the drilling device 1 of this embodiment, the gantry unit 30 and the drill unit 40 attached thereto can be rolled along the X-axis direction of the mounting table 10 and the Y-axis direction perpendicular to the X-axis direction (see Figure 1, etc.) to a predetermined position (drilling position) of the workpiece W to be drilled, which is placed on the mounting table 10, and the drill tip of the drill drill 42 attached to the drill unit 40 can be displaced above the drilling position.

[0027] Furthermore, the drilling drill 42 is lowered along the Z-axis direction (corresponding to the direction from the front of the paper to the back of the paper in Figure 1), which is perpendicular to the X-axis direction and the Y-axis direction, and the drilling drill 42 is brought into contact with the work surface W1 of the workpiece W while rotating, thereby performing a drilling operation to open a hole (through hole) that passes through the workpiece W.

[0028] In addition to the basic configuration of the so-called "gantry-type drilling device" described above, the drilling device 1 of this embodiment is mainly equipped with a flame section 50 that is connected to the drill unit 40 and is configured to be movable along the X-axis and Y-axis directions together with the drill unit 40, and that performs marking by flame, an inkjet section 60 that is connected to the flame section 50 so that the Y-axis direction is aligned with that of the flame section 50 and that performs marking by inkjet printing, and a connection and detachment mechanism section 70 that is interposed between the flame section 50 and the inkjet section 60 and that can connect and detach the two.

[0029] Here, in this embodiment, the flame section 50 shown above corresponds to the flame marking section (flame marking device) of the present invention, and the inkjet section 60 corresponds to the inkjet marking section (inkjet marking device) of the present invention.

[0030] 1. Basic configuration of the drilling device Further, to describe in detail each component of the drilling device 1 of this embodiment, the loading table 10 has an X-axis and a Y-axis perpendicular to the X-axis, and is used to load the workpiece W in a horizontal position on the table top surface 11. The size of the workpiece W is not particularly limited, but for example, a wide workpiece W with a width of about 5000 mm, which corresponds to the Y-axis direction, and a length of 25 m or more, which corresponds to the X-axis direction, may be used. The workpiece W is a large, elongated body, and is heavy because it is made of steel.

[0031] Therefore, in order to align the longitudinal direction of the workpiece W, which is a long and heavy object, with the horizontal direction and to stably support it from below, the loading table 10 must have a robust structure, and can be constructed, for example, by combining multiple steel materials, etc. This allows the workpiece W to be placed on the loading table 10 without bending due to its own weight.

[0032] The pair of X-axis guide rails 20a, 20b of the drilling device 1 are arranged parallel to each other on both sides of the left-right direction (up-down direction on the paper in Figure 1) of the loading table 10, and are intended to regulate the rolling direction of the gantry unit 30 (described later) in the X-axis direction.

[0033] By placing the gantry unit 30 on the upper end of the rail main body 21, the gantry unit 30 can be freely rolled along the X-axis. In other words, the gantry unit 30 can be rolled to any position in the longitudinal direction of the workpiece W. The X-axis guide rails 20a, 20b can be formed using the same steel material as that used for general rail members. In this case, a straight, distortion-free member is used to prevent deformation or bending along the longitudinal direction of the rail main body 21 (which coincides with the X-axis).

[0034] The gantry unit 30 is placed on each of the X-axis guide rails 20a, 20b and rolls horizontally along the X-axis of the loading table 10. It comprises a pair of rolling carriages each having a substantially flat carriage base and a plurality of wheels rotatably supported on the lower part of the carriage base, a pair of legs each extending vertically upward from approximately the center of the rolling carriage, and a girder 35 installed between the pair of legs with its longitudinal direction aligned with the Y-axis direction (FIG. 1) perpendicular to the X-axis of the loading table 10. As a result, the gantry unit 30 has a gate-like configuration spanning above the loading table 10 and the workpiece W.

[0035] The rolling means (drive means) for rolling the gantry unit 30 along the X-axis in accordance with the X-axis guide rails 20a, 20b is not particularly limited. For example, it may be a means for transmitting a driving force generated by a known drive motor to the gantry unit 30 via a gearbox or the like, thereby rolling the gantry unit 30, or a means for generating a driving force using a hydraulic cylinder or the like. The rolling control unit of the drilling apparatus 1 of this embodiment can arbitrarily control the amount of rolling of the gantry unit 30 in the X-axis direction, for example, in units of several millimeters to several centimeters. The rolling control unit can have a configuration substantially identical to that of a known gantry-type drilling apparatus, and the rolling of the gantry unit 30 and the like can be controlled by an operator operating an operation control console (operation panel) provided in part of the drilling apparatus 1. Therefore, a detailed description thereof will be omitted.

[0036] The drill unit 40 is equipped with a drill base 41 attached to the girder 35 of the gantry unit 30 described above and configured to be movable horizontally along the Y-axis direction of the mounting table 10, and a drill drill 42 attached to the drill base 41 and configured to be movable up and down along the Z-axis direction (from the front to the back of the paper in Figure 1) which is perpendicular to the X-axis and Y-axis directions of the mounting table 10, and whose tip is capable of drilling holes in the workpiece W.

[0037] In the drilling device 1 of this embodiment, one drill unit 40 is attached to the gantry unit 30, but this is not limiting. That is, for example, a pair of drill units (a left drill unit and a right drill unit) may be attached to one gantry unit. As a result, when performing drilling operations at positions symmetrical left and right along the X axis (vertically symmetrical up and down in FIG. 1), the pair of drill units can perform drilling operations at two locations at once. This improves the efficiency of the drilling operation.

[0038] The rolling means (drive means) for rolling each drill unit 40 along the Y-axis is not particularly limited, and a well-known configuration can be adopted, similar to the rolling of the gantry unit 30 described above. Therefore, detailed explanations of the configurations related to these controls will be omitted here. Furthermore, the mechanism for raising and lowering the drill drill 42 in the vertical direction along the Z-axis to perform drilling on the workpiece W, and the drive means related to this raising and lowering are also the same, and therefore detailed explanations will be omitted.

[0039] 2.Flame section As shown in Figures 1 and 2, the flame section 50 is attached to a flame section support section 52 extending from the drill base 41 of the drill unit 40 along the X-axis direction, and is mainly composed of a flame spray section 51 that can spray metal powder together with a flame onto the work surface W1.

[0040] By moving flame unit 50 along the X-axis and Y-axis directions while spraying metal powder together with the high-temperature flame, it is possible to mark (flame mark) a scribe line M1 such as a straight line or a cross mark on workpiece surface W1. Here, because flame unit 50 is connected to drill unit 40 having drill drill 42 as described above, movement of flame unit 50 along the X-axis and Y-axis directions can be achieved by rolling gantry unit 30 to which drill unit 40 is attached.

[0041] That is, by rolling the gantry unit 30 along the X-axis direction and the Y-axis direction, the scribe line M1 can be marked on the workpiece surface W1 at a predetermined position of the workpiece W by baking paint.

[0042] Furthermore, the flame unit 50 can move in the Y-axis direction along the drill unit attached to the gantry unit 30, and can approach the inkjet unit 60 located in the lower right direction on the paper surface of FIG.

[0043] 3. Inkjet section 1 and 2, the inkjet unit 60 mainly comprises an ink ejection unit 61 and an inkjet device main body 63 having an ink tank in which ink 62 is stored, and this configuration is supported by an inkjet support unit 64. The inkjet unit 60 is connected to the flame unit 50 via a connecting / detaching mechanism unit 70, and can move while supported by the inkjet support unit 64 in accordance with the movement of the flame unit 50 (and the drill unit 40).

[0044] This allows ink 62 to be ejected from the ink ejection unit 61 onto the work surface W1, and a scribed line M2 such as a cross mark can be marked (inkjet marking). Furthermore, the inkjet unit 60 can use inkjet printing technology to print (print) not only simple straight lines but also finer line drawings on the work surface W1.

[0045] Therefore, in addition to printing the marking lines M2 and the like using the inkjet printing technology described above, it is possible to print, for example, a lot number M3 for product management composed of a combination of letters and numbers on the work surface W1, or complex images such as a barcode or two-dimensional barcode M4.

[0046] The inkjet support part 64 is connected to a connecting and detaching mechanism part 70, which will be described later. Therefore, by connecting the connecting and detaching mechanism part 70 to the flame part 50, the inkjet support part 64, and the ink discharge part 61 and inkjet device main body 63 supported thereby, can move along the X-axis direction and the Y-axis direction in accordance with the movement of the flame part 50.

[0047] 4. Connection and detachment mechanism Furthermore, the specific configuration of the coupling / detachment mechanism 70 and the details of the coupling (coupled mode) and detachment (uncoupled mode) between the flame unit 50 and the inkjet unit 60 using the coupling / detachment mechanism 70 will be described with reference to Figures 3 to 6. Figures 3 to 6 show the coupling / detachment mechanism 70 as viewed from the side.

[0048] As described above, the connecting / detaching mechanism 70 is mainly comprised of a mechanism main body 71 connected to the inkjet unit 60 via the inkjet support 64, a rod cylinder 72 attached to the mechanism main body 71 with its longitudinal direction (corresponding to the left-right direction on the paper in Figures 3-6) aligned with the Y-axis direction, a pair of cylinder shafts 73a, 73b protruding from respective cylinder ends 72a, 72b of the rod cylinder 72 and capable of extending and retracting along the Y-axis direction, a first link mechanism 74, and a second link mechanism 75. In the drilling device 1 of this embodiment, the rod cylinder 72 uses a so-called "double-rod cylinder" in which the pair of cylinder shafts 73a, 73b are internally connected and configured as a single cylinder shaft. Therefore, when one cylinder shaft 73a extends from the cylinder end 72a in the extension direction (corresponding to the left side of the paper in Figure 2, etc.), the other cylinder shaft 73b contracts by the same amount as the extension of the one cylinder shaft 73a.

[0049] Here, a moving-side stopper 90 extends from the drill unit 40 connected to the flame unit 50 to connect and disconnect with the connecting / detaching mechanism 70. That is, the moving-side stopper 90 is connected in a broad sense to the flame unit 50. Furthermore, in Figures 3-6, the moving-side stopper 90 is shown in cross section for the sake of simplicity.

[0050] 3 and other figures, an end 90a of the moving-side stopper 90 has a tip bent upward so that it can engage with a part of the first link mechanism 74 of the connecting / detaching mechanism 70, and a hook-shaped cross section formed by cutting a part of the lower end at an angle, forming a locking receiving part 91. Furthermore, a drill driving part 92 that moves the drill unit 40 along the Y-axis direction is provided near the locking receiving part 91. This allows the flame part 50 and the drill unit 40, which are close to the inkjet part 60, to be moved along the Y-axis direction using the gantry unit 30, and enables the connecting / detaching mechanism 70 to be connected to the moving-side stopper 90.

[0051] The connection between the moving stopper 90 and the connecting / detaching mechanism 70, in other words, the connection between the flame section 50 (drill unit 40) and the inkjet section 60 will be described in detail with reference to FIGS. 3 to 6.

[0052] The first link mechanism 74 of the connecting / detaching mechanism 70 has a first main link 76 having a first pivoting end 76a rotatably connected to the shaft end of one of the cylinder shafts 73a and a first engaging portion 76b at both ends that can engage with the locking receiving portion 91 of the moving side stopper 90, and a first auxiliary link 78 that rotatably connects a first fixed portion 77 of the mechanism body 71 and the first main link 76 near their centers to each other, and is configured to be deformable.

[0053] That is, the cylinder shaft 73a and the first rotation end 76a of the first main link portion 76 are rotatably fixed via a fixed pin 79a, one end of the first auxiliary link portion 78 is rotatably fixed via the first fixed portion 77 and a fixed pin 79b, and the other end of the first auxiliary link portion 78 is rotatably fixed via a fixed pin 79c near the center of the first main link portion 76. As a result, a triangle is formed with the three fixed pins 79a, 79b, and 79c as its vertices in a side view. As the cylinder shaft 73a expands and contracts, the position of the fixed pin 79b remains unchanged, but the positions of the remaining fixed pins 79a and 79c change, thereby constructing a link mechanism and maintaining the triangle. In the example shown in FIG. 3, the fixed pin 79a of the first link mechanism portion 74 is positioned vertically below the fixed pin 79b attached to the first fixed portion 77.

[0054] On the other hand, the second link mechanism 75 has a second main link part 80 having a second pivot end 80a rotatably connected to the shaft end of the other cylinder shaft 73b and a second engagement part 80b at both ends that can engage with the fixed side stopper 81, and a second auxiliary link part 83 that rotatably connects the second fixed part 82 of the mechanism body 71 and the second main link part 80 near their centers to each other, and is configured to be deformable.

[0055] That is, the cylinder shaft 73b and the second pivot end 80a of the second main link 80 are rotatably fixed by a fixed pin 84a, one end of the second auxiliary link 83 is rotatably fixed by a second fixed portion 82 and a fixed pin 84b, and the other end of the second auxiliary link 83 is rotatably fixed by a fixed pin 84c near the center of the second main link 80. As a result, a triangle is formed with the three fixed pins 84a, 84b, and 84c as its vertices in a side view. As the cylinder shaft 73b expands and contracts, the position of the fixed pin 84b remains unchanged, but the positions of the remaining fixed pins 84a and 84c change, thereby constructing a link mechanism and maintaining the triangle. In the example shown in FIG. 3, the fixed pin 84a of the second link mechanism 75 is located vertically below the fixed pin 84c that connects the second auxiliary link 83 near the center of the second main link 80.

[0056] In the connection and detachment mechanism 70 of the drilling device 1 of this embodiment, Figure 3 shows a state in which the engagement between the locking receiving portion 91 of the moving side stopper 90 and the first engagement portion 76b of the first link mechanism 74 of the connection and detachment mechanism 70 is released (disconnection mode).

[0057] In this disconnection mode, the inkjet unit 60 moves to a predetermined standby position (toward the lower right on the paper in FIG. 1) and waits there, as shown in FIG. 1. Furthermore, the second engagement portion 80b of the second link mechanism 75 engages with the fixed-side stopper 81. This restricts the inkjet unit 60, which is connected to the connection / detachment mechanism 70, from moving in the Y-axis direction (toward the left on the paper in FIG. 3).

[0058] That is, when the connection / detachment mechanism 70 is in the disconnection mode, the flame section 50 and the inkjet section 60 are separated from each other, and the flame section 50 can move freely along the X-axis and Y-axis directions as the gantry unit 30 connected via the drill unit 40 rolls.

[0059] This allows the scribe line M1 to be freely marked at a predetermined perforation position on the workpiece surface W1 of the workpiece W by high-temperature spraying of metal powder. That is, marking can be performed using the flame unit 50. Meanwhile, as described above, the inkjet unit 60 remains in the standby position because the connection / detachment mechanism 70 releases the connection with the flame unit 50 and restricts movement in the Y-axis direction. That is, the inkjet unit 60 does not move together with the flame unit 50. This prevents the flame unit 50 from approaching the inkjet unit 60 when flame marking is performed by the flame unit 50. In this case, it is also possible to control the flame unit 50 so that it does not enter a specified range from the inkjet unit 60 in the standby position.

[0060] The transition of the coupling / detaching mechanism 70 from the coupling release mode (see FIG. 3) to the coupling mode (see FIG. 6) will be described in detail below.

[0061] 3 (disconnection mode), first, the end 90a of the moving-side stopper 90 is moved toward the first fixed portion 77 of the mechanism main body 71 (see the arrow (movement direction D) in FIG. 4). At this time, the drill driving portion 92 of the drill unit 40 performs drive control to move the moving-side stopper 90 along the Y-axis direction.

[0062] The amount of movement of the moving-side stopper 90 is controlled by driving until the end 90a of the moving-side stopper 90 is positioned between the first engaging portion 76b of the first main link portion 76 of the first link mechanism 74 and the first fixed portion 77. As a result, as shown in FIG. 4, the first engaging portion 76b of the first main link portion 76 is positioned directly below the lock receiving portion 91 of the moving-side stopper 90 (see FIG. 4). This puts the moving-side stopper 90 in a connection standby state.

[0063] Then, the cylinder shafts 73a, 73b of the rod cylinder 72 attached to the mechanism main body 71 are controlled. First, one of the cylinder shafts 73a of the rod cylinder 72 is extended along the Y-axis direction. More specifically, the cylinder shaft 73a is extended in a direction in which the shaft end of the cylinder shaft 73a approaches the moving-side stopper 90. This causes the first link mechanism 74, which is rotatably connected to the cylinder shaft 73a, to deform, and the first main link portion 76 rotates clockwise around the fixed pin 79a as the rotation axis (see FIG. 5). As a result, the first engagement portion 76b of the first main link portion 76 contacts the end 90a of the moving-side stopper 90. Note that the rotation of the first main link portion 76 is not limited to the clockwise direction described above. For example, when viewed from the depth direction of the paper in FIG. 5, the first main link portion 76 rotates counterclockwise around the fixed pin 79a as the rotation axis.

[0064] As the one cylinder shaft 73a extends, the other cylinder shaft 73b of the rod cylinder 72 contracts along the Y-axis direction in accordance with the extension of the one cylinder shaft 73a. More specifically, the cylinder shaft 73b is contracted in a direction in which the shaft end of the cylinder shaft 73b approaches the moving-side stopper 90, in other words, in a direction in which the cylinder shaft 73b is accommodated in the rod cylinder 72. This causes the second link mechanism 75, which is rotatably connected to the cylinder shaft 73b, to deform, and the second main link 80 rotates clockwise around the fixed pin 84a as the rotation axis (see FIG. 5). As a result, the second engagement portion 80b of the second main link 80, which had been in contact with and engaged with the fixed-side stopper 81, moves away from the fixed-side stopper 81. This releases the engagement between the fixed-side stopper 81 and the second main link 80 of the second link mechanism 75. As with the first main link 76, the rotation of the second main link 80 is not limited to a clockwise direction. For example, when viewed from the depth direction of the paper in FIG. 5, the second main link 80 rotates counterclockwise with the fixed pin 84a as the rotation axis.

[0065] As described above, the extension amount of one cylinder shaft 73a of the rod cylinder 72 and the contraction amount of the other cylinder shaft 73b are the same because the cylinder shafts 73a, 73b are integrally formed. As a result, the first link mechanism 74 and the second link mechanism 75 of the connecting / detaching mechanism 70 change to the state shown in FIG.

[0066] That is, the first engaging portion 76b of the first main link portion 76 of the first link mechanism 74 and the lock receiving portion 91 of the moving-side stopper 90 are fully engaged with each other. At this time, as shown in FIG. 6, the fixing pin 79a of the first link mechanism 74 is positioned vertically below the fixing pin 79c.

[0067] Meanwhile, the second engagement portion 80b of the second main link portion 80 of the second link mechanism 75 is completely disengaged from the fixed-side stopper 81. That is, the second engagement portion 80b of the second main link portion 80 moves to a position lower than the lower end of the fixed-side stopper 81. At this time, the fixed pin 84a of the second link mechanism 75 is positioned vertically below the fixed pin 84b. As described above, the connection / detachment mechanism 70, which includes the mechanism body 71 and the rod cylinder 72 attached thereto, is connected to the inkjet unit 60 (inkjet support portion 64). Therefore, the inkjet unit 60 can move along the X-axis and Y-axis directions in accordance with the movement of the flame unit 50 (drill unit 40) connected by the connection / detachment mechanism 70.

[0068] As a result, the inkjet unit 60, while connected to the flame unit 50 (connected mode), can eject ink 62 onto the workpiece surface W1 of the workpiece W to perform marking such as a score line M2. As a result, the flame unit 50 and the inkjet unit 60 can perform the scoring (marking) operation on the workpiece surface W1 of the workpiece W using a common rolling means (drive means) controlled by the gantry unit 30, which rolls along the X-axis and Y-axis directions. In addition, by having a configuration that allows the flame unit 50 and the inkjet unit 60 to be connected and detached, particularly in flame marking using the flame unit 50 that handles high-temperature flames, the inkjet unit 60, which uses ink 62 containing an organic solvent, can be located as far away as possible from the flame spray unit 51 of the flame unit 50 without being placed in close proximity. This significantly reduces the risk of fire, etc. [Industrial Applicability]

[0069] The perforation device of the present invention can be particularly useful in the marking process in a gantry-type perforation device that has the device (part) configurations of both a flame marking device (flame section) and an inkjet marking device (inkjet section). [Explanation of symbols]

[0070] 1: drilling device, 10: loading table, 11: table top surface, 20a, 20b: X-axis guide rail, 21: rail body, 30: gantry unit, 35: girder, 40: drill unit, 41: drill base, 42: drilling drill, 50: flame unit (flame marking unit), 51: flame spraying unit, 52: support unit, 60: inkjet unit (inkjet marking unit), 61: ink discharge unit, 62: ink, 63: inkjet device body, 64: inkjet support base, 70: connection and detachment mechanism, 71: mechanism body, 72: rod cylinder, 72a, 72b: cylinder end, 73a ,73b: Cylinder shaft, 74: First link mechanism part, 75: Second link mechanism part, 76: First main link part, 76a, 80a: One end, 76b: First engagement part, 77: First fixed part, 78: First auxiliary link part, 79a, 79b, 79c, 84a, 84b, 84c: Fixed pin, 80: Second main link part, 80b: Second engagement part, 81: Fixed side stopper, 82: Second fixed part, 83: Second auxiliary link part, 90: Moving side stopper, 90a: End part, 91: Locking receiving part, 92: Drill driving part, D: Moving direction, M1, M2: Marking line, M3: Lot number, M4: Two-dimensional barcode, W: Work, W1: Work surface.

Claims

1. a gantry-type drilling device that displaces the drilling position of a drill drill along an X-axis direction and a Y-axis direction perpendicular to the X-axis direction and drills a workpiece with the drill drill, the gantry-type drilling device comprising: a flame marking unit that is formed to be movable along the X-axis direction and the Y-axis direction and sprays metal powder together with a flame from a flame spray unit to mark a workpiece surface with the flame; an inkjet marking unit that is connected to the flame marking unit so that the Y-axis direction is aligned with the flame marking unit, moves together with the flame marking unit, ejects ink from an ink ejection unit, and performs marking on the surface of the workpiece by inkjet printing; a connecting / detaching mechanism interposed between the flame marking unit and the inkjet marking unit, capable of connecting and detaching the flame marking unit and the inkjet marking unit; A gantry-type drilling device comprising:

2. The connection / detachment mechanism includes: a mechanism body connected to the inkjet marking unit; a rod cylinder attached to the mechanism body with its longitudinal direction aligned with the Y-axis direction; a pair of cylinder shafts protruding from respective cylinder ends of the rod cylinder and capable of extending and retracting along the Y-axis direction; a first main link unit that is rotatably connected to an end of one of the cylinder shafts and has a first engaging unit that is connectable to the flame marking unit and engageable with a moving stopper that is movable along the Y-axis direction; and a first link mechanism unit that has a first auxiliary link unit that rotatably connects a first fixed unit of the mechanism unit body and the first main link unit near their centers to each other; a second main link part that is rotatably connected to the shaft end of the other cylinder shaft and has a second engaging part that can engage with a fixed-side stopper formed separately from the mechanism body, and a second link mechanism part that has a second auxiliary link part that rotatably connects the second fixed part of the mechanism body and the second main link part near their centers to each other; The gantry-type drilling apparatus of claim 1 further comprising:

3. The connection / detachment mechanism includes: a disconnection mode in which, when marking the work surface with a flame using the flame marking unit, the engagement between the first engagement unit and the moving side stopper is released, and the second engagement unit and the fixed side stopper are engaged, and the extension and contraction of the pair of cylinder shafts is controlled so that the inkjet marking unit is retracted to a predetermined standby position; A gantry-type drilling device as described in claim 2, which can be switched to a coupled mode in which the extension and contraction of a pair of cylinder shafts are controlled so that, when marking the work surface using inkjet printing technology using the inkjet marking unit, the first engagement portion and the moving side stopper are engaged and the second engagement portion and the fixed side stopper are disengaged, thereby enabling the inkjet marking unit, which has been retracted to the standby position, to move.

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