Laser processing machine

Abstract

To inhibit a pallet from moving unexpectedly during setup of a workpiece.SOLUTION: A laser processing machine 1 includes: a pallet 50 on which a workpiece W is placed; a processing head 30 which radiates a laser beam from above the workpiece W placed on the pallet 50 to perform laser processing to the workpiece W; and a processing machine body 10 which movably supports the pallet 50 along a first direction parallel to an in-plane direction of the workpiece W. The pallet 50 includes a brake mechanism 5 which stops movement of the pallet 50.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a laser processing machine. [Background technology]

[0002] Laser processing machines that use a laser beam to perform cutting processing on plate-shaped workpieces such as sheet metal are known. The laser processing machine cuts the workpiece by applying a laser beam to the workpiece and using thermal energy. The laser processing machine is equipped with a pallet on which the workpiece to be processed is placed. In order to prevent the molten material of the workpiece affected by the thermal energy from welding, the pallet has plate-shaped workpiece support members with multiple mountain-shaped protrusions arranged at regular intervals. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4188471 Summary of the Invention [Problem to be solved by the invention]

[0004] If the pallet is configured to be freely movable from the processing machine body in consideration of workpiece setup, etc., the pallet may move unexpectedly and come into contact with an operator. [Means for solving the problem]

[0005] A laser processing machine of one embodiment of the present invention comprises a pallet on which a workpiece is placed, a processing head that irradiates a laser beam from above the workpiece placed on the pallet to perform laser processing on the workpiece, and a processing machine body that supports the pallet so that it can be moved freely along a first direction parallel to the in-plane direction of the workpiece, and the pallet includes a brake mechanism that stops movement of the pallet.

[0006] According to the laser processing machine of one aspect of the present invention, the pallet on which the workpiece is placed is configured to be movable. Since the processing machine body is equipped with a brake mechanism, the movement of the pallet can be stopped by the brake mechanism. This makes it possible to prevent the pallet from moving unexpectedly. Effect of the Invention

[0007] According to one aspect of the present invention, it is possible to prevent a situation in which a pallet comes into contact with a worker. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side view showing a schematic view of a main part of a laser processing machine according to the present embodiment. [Diagram 2] FIG. 2 is a top view diagrammatically showing a main part of the laser processing machine. [Diagram 3] FIG. 3 is a side view showing a main part of the laser processing machine with the pallet pulled out to the pulled out position. [Figure 4A] FIG. 4A is an explanatory diagram showing the configuration of a brake pad portion of the brake mechanism. [Figure 4B] FIG. 4B is an explanatory diagram showing the configuration of an operating handle of the brake mechanism. [Figure 5A] FIG. 5A is an explanatory diagram showing the configuration of a brake pad portion of the brake mechanism. [Figure 5B] FIG. 5B is an explanatory diagram showing the configuration of an operating handle of the brake mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the laser processing machine according to the present embodiment will be described with reference to the drawings.

[0010] 1 is a side view showing a schematic diagram of a main part of a laser processing machine according to the present embodiment. The laser processing machine 1 according to the present embodiment includes a pallet 50 on which a workpiece W is placed, a processing head 30 that irradiates a laser beam from above the W workpiece W placed on the pallet 50 to perform laser processing on the workpiece W, and a processing machine body 10 that supports the pallet 50 so as to be movable along a first direction parallel to the in-plane direction of the workpiece W. The pallet 50 includes a brake mechanism 5 that stops the movement of the pallet 50.

[0011] The laser processing machine according to this embodiment will be described in detail below. In this specification, the left-right direction and the front-rear direction perpendicular to the horizontal direction, and the up-down direction perpendicular to the left-right direction and the front-rear direction, respectively, are used as the definition of directions. The left-right direction is a direction parallel to the in-plane direction of the workpiece W, and corresponds to the first direction.

[0012] The laser processing machine 1 includes a processing machine body 10, a processing head 30, and a pallet 50.

[0013] The processing machine body 10 includes a base 11 , a side frame 12 , and a head driving mechanism 15 .

[0014] The base 11 is configured in a roughly rectangular parallelepiped shape and is placed on a mounting surface such as a floor surface.

[0015] The side frames 12 are disposed at the front and rear edges of the base 11. For ease of explanation, the side frames 12 at the front edge are omitted from Fig. 1. The side frames 12 at the front and rear edges are disposed parallel to each other.

[0016] The head drive mechanism 15 is a mechanism for moving the processing head 30 along the in-plane direction of the workpiece W, and includes an X-axis carriage 16 and a Y-axis carriage 19. The X-axis carriage 16 has a gate shape composed of a pair of support columns 17 and a beam 18 extending in the front-rear direction so as to straddle the pair of support columns 17. In FIG. 1, the front support columns 17 are omitted, as are the side frames 12 at the front edge portions.

[0017] The X-axis carriage 16 is supported by a pair of side frames 12 and is configured to be movable along the side frames 12. The X-axis carriage 16 is driven by an X-axis carriage drive unit (not shown) provided on the side frames 12 and moves in the left-right direction.

[0018] The Y-axis carriage 19 is disposed on the X-axis carriage 16. The Y-axis carriage 19 is supported by the beam 18 of the X-axis carriage 16 and is configured to be movable along the beam 18. The Y-axis carriage 19 is driven by a Y-axis carriage drive unit (not shown) provided on the beam 18, and moves in the front-rear direction.

[0019] The processing machine body 10 further includes a control panel 100, a laser oscillator 110, and the like. The control panel 100 controls the operation of the laser processing machine 1. The control panel 100 is composed of a box-shaped housing, a circuit board housed inside the housing, and the like. The laser oscillator 110 generates a laser beam and supplies the laser beam to the processing head 30. The laser oscillator 110 is composed of a box-shaped housing, electronic components and electric components housed inside the housing, and the like.

[0020] The control panel 100 and the laser oscillator 110 are disposed on a base 11 of the processing machine body 10. Specifically, the control panel 100 is disposed on the lower right end of the base 11 and fixed to the base 11. The laser oscillator 110 is disposed on the upper right end of the base 11 and fixed to the base 11. The laser oscillator 110 is disposed above the control panel 100, and a space S serving as a gap is formed between the laser oscillator 110 and the control panel 100.

[0021] The processing head 30 irradiates a laser beam from above the workpiece W to perform laser processing on the workpiece W. A laser beam emitted from a laser oscillator 110 is transmitted to the processing head 30 via a process fiber (not shown). The laser beam transmitted to the processing head 30 passes through an optical system provided inside the processing head 30 and is irradiated onto the workpiece W from an opening at the tip of the processing head 30.

[0022] The machining head 30 is fixed to the Y-axis carriage 19 of the head drive mechanism 15. By driving the X-axis carriage drive unit and the Y-axis carriage drive unit to move the X-axis carriage 16 and the Y-axis carriage 19, the machining head 30 can be moved in the left-right direction and the front-back direction parallel to the in-plane direction of the workpiece W, respectively.

[0023] The processing head 30 can perform laser processing within a predetermined processing range R through movement by the head drive mechanism 15. The laser processing machine 1 of this embodiment is a device designed for a small-sized workpiece W, and the processing range R is set to a range capable of processing a workpiece W with a maximum size of 4' x 4' (1219 mm x 1219 mm).

[0024] Fig. 2 is a top view showing a schematic diagram of the main part of the laser processing machine, and Fig. 3 is a side view showing the main part of the laser processing machine in a state where the pallet is pulled out to the pulled out position.

[0025] The pallet 50 is supported horizontally by the processing machine body 10. A workpiece W is placed on the pallet 50. The pallet 50 includes a frame 51 for supporting the workpiece W.

[0026] The frame 51 is a generally rectangular frame member that is elongated in the left-right direction when viewed from above. The left-right length of the frame 51 is approximately the same as the left-right length of the processing machine body 10, including the left end of the base 11 to the control panel 100 and the laser oscillator 110 connected to the base 11.

[0027] The pallet 50 includes a processing area A1 and an expansion area A2. The processing area A1 is an area that supports a workpiece W in a processing range R. On the other hand, the expansion area A2 is an area that expands from the processing area A1 toward the right.

[0028] The processing area A1 of the pallet 50 includes a plurality of skids 52 and a plurality of clamping portions 53.

[0029] The multiple skids 52 are plate-like members that support the workpiece W in the machining area A1. The multiple skids 52 are arranged at intervals in the left-right direction. Each skid 52 is a plate-like member extending in the front-rear direction and is made of a metal material such as steel, for example, mild steel. The skid 52 is arranged so as to straddle between a pair of frame members 51a and 51b that constitute the frame body 51, and both ends of the skid 52 are fixed to each of the pair of frame members 51a and 51b. The skid fixed to the frame body 51 stands, for example, vertically. However, the skid 52 does not necessarily have to be vertical as long as it stands up in the up-down direction.

[0030] Each skid 52 has a number of protrusions that protrude upward. The protrusions are provided at the upper end of the skid 52. The protrusions are provided at intervals in the front-to-rear direction. Each protrusion is a plate that is elongated in the up-down direction and has a mountain-like shape that narrows toward the upper end. The workpiece W is supported at the top of the skid 52, i.e., at the apex of each protrusion.

[0031] The clamp portions 53 fix the workpiece W supported by the skid 52. The clamp portions 53 are fixed to a frame member 51a constituting the frame body 51.

[0032] The expansion area A2 of the pallet 50 is configured such that a pair of frame members 51a, 51b constituting the frame body 51 extend in the rightward direction.

[0033] The pallet 50 thus configured is supported for left-right movement via guide members 13 fixed to the side frames 12. The guide members 13 slidably hold rails provided on a frame 51 of the pallet 50, thereby guiding the linear movement of the pallet 50.

[0034] When the pallet 50 is in the normal position P1, specifically when the pallet 50 is located at the far right side, the processing area A1 of the pallet 50 is located in the processing range R (see FIG. 1). In addition, the extension area A2 of the pallet 50 enters the space S, which is the gap formed between the control panel 100 and the laser oscillator 110.

[0035] When the pallet 50 is pulled out to the left, the pallet 50 moves from the regular position P1 to the pulled-out position P2. The pulled-out position P2 is a position where the processing area A1 of the pallet 50 is pulled out to the left beyond the processing range R (see FIG. 3). The pallet 50 can move between the pulled-out position P2 and the regular position P1.

[0036] The left frame member 51c constituting the frame body 51 is provided with handles 55, 56 that an operator grasps in order to move the pallet 50. The operator can move the pallet 50 between the regular position P1 and the withdrawn position P2 by grasping the handles 55, 56 and moving the pallet 50.

[0037] The pallet 50 according to this embodiment further includes a lock mechanism 57 and a brake mechanism 5.

[0038] The locking mechanism 57 secures the pallet 50 in both the normal position P1 and the pulled-out position P2. The locking mechanism 57 is arranged on the side frame 12 and is composed of a rod member or the like configured to be able to move forward and backward in the vertical direction. The frame member 51a on the front side of the pallet 50 is provided with engagement portions 51a1, 51a2 corresponding to the normal position P1 and the pulled-out position P2, respectively. The locking mechanism 57 secures the pallet 50 by engaging with engagement holes or slits (not shown) provided in the engagement portions 51a1, 51a2.

[0039] The brake mechanism 5 stops the movement of the pallet 50. As described above, the pallet 50 becomes movable when the lock mechanism 57 is released from the lock of the pallet 50. The brake mechanism 5 stops the movement of the pallet 50 at a position where the pallet 50 is not fixed by the lock mechanism 57, that is, at any intermediate position between the regular position P1 and the withdrawn position P2.

[0040] 4A and 5A are explanatory diagrams showing the configuration of a brake pad section of the brake mechanism. 4B and 5B are explanatory diagrams showing the configuration of an operating handle of the brake mechanism. The brake mechanism 5 is composed of an operating handle 60, a brake pad section 65, and a cable section 70.

[0041] The operating handle 60 is provided on the grip portion 56, and an operating force is input when the operator grips it. The operating handle 60 has a shape bent into a substantially L-shape, and an operating portion 60a and a connection portion 60b are connected at the bent portion. A pin 61 provided on the grip portion 56 is inserted into the bent portion of the operating handle 60, and the operating handle 60 is freely rotatable around the pin 61. An end of a cable portion 70 is connected to the connection portion 60b of the operating handle 60.

[0042] The brake pad section 65 is provided on the frame member 51a of the pallet 50 facing the side frame 12, and generates a braking force to stop the movement of the pallet 50. The brake pad section 65 is composed of a link mechanism 66, a rod section 67, a pad main body 68, and a spring 69.

[0043] The link mechanism 66 is formed in a substantially L-shape, with a pair of arms connected at a bent portion. A pin provided on the frame member 51a is inserted into the bent portion of the link mechanism 66, and the link mechanism 66 is rotatable about the pin. An end of the cable portion 70 is connected to one arm of the link mechanism 66, and an end of the rod portion 67 is connected to the other arm of the link mechanism 66.

[0044] The rod portion 67 is held by the frame member 51a, and moves forward and backward in response to the rotational movement of the link mechanism 66. An arm of the link mechanism 66 is connected to one end of the rod portion 67, and a pad main body 68 is attached to the other end of the rod portion 67.

[0045] The pad body 68 is disposed at a position facing the side frame 12. The pad body 68 is switched between a contact state in which it is in contact with the side frame 12 and a separated state in which it is separated from the side frame 12 in accordance with the forward and backward movement of the rod portion 67. When the pad body 68 is in contact with the side frame 12, a frictional force is generated between the pad body 68 and the side frame 12. Due to this frictional force, the pad body 68 generates a braking force that stops the movement of the pallet 50.

[0046] The spring 69 is attached so as to surround the rod portion 67, and is disposed between the pad main body 68 and the frame member 51a. The spring 69 is a compression spring, and applies a pressing force to the pad main body 68 so that the pad main body 68 comes into contact with the side frame 12.

[0047] The cable section 70 is composed of an outer cable 71 and an inner cable 72. The outer cable 71 is a cylindrical member formed with a hollow interior. One end of the outer cable 71 is fixed near the operating handle 60, and the other end of the outer cable 71 is fixed to a bracket 73 provided near the brake pad section 65. The inner cable 72 is inserted into the hollow section of the outer cable 71 and can move inside the outer cable 71. One end of the inner cable 72 is connected to the connection section 60b of the operating handle 60, and the other end of the inner cable 72 is connected to the link mechanism 66 of the brake pad section 65. The inner cable 72 is hung with a predetermined tension so that no slack occurs between the connection section 60b of the operating handle 60 and the link mechanism 66 of the brake pad section 65.

[0048] The operation of the pallet 50 in the laser processing machine 1 according to this embodiment will be described below. As shown in Figures 1 and 2, before processing is performed, that is, in the initial state of the laser processing machine 1, the pallet 50 is in the normal position P1. The pallet 50 is fixed in the normal position P1 by a locking mechanism 57. Therefore, even if the handles 55, 56 are gripped and the pallet 50 is pulled to the left, the pallet 50 cannot be moved.

[0049] When performing setup work to set workpieces W on the pallet 50, the worker first releases the locking mechanism 57 to switch the pallet 50 to a movable state. Meanwhile, in the brake pad portion 65 of the brake mechanism 5, the pad body 68 is pressed by the spring 69, so that the pad body 68 is in contact with the side frame 12 (see FIG. 4A). Since the pad body 68 is in contact, a braking force is generated by the brake pad portion 65. Therefore, even if the locking mechanism 57 is released, the pallet 50 will not start moving on its own.

[0050] The operator holds one of the handle portions 55 and the other handle portion 56. The operator inputs an operating force to the operating handle 60 by holding the operating portion 60a of the operating handle 60 together with the other handle portion 56. When an operating force is input to the operating handle 60, the operating handle 60 rotates counterclockwise around the pin 61, as shown in FIG. 5B. When the operating handle 60 rotates, the inner cable 72 connected to the connection portion 60b of the operating handle 60 is pulled toward the operating handle 60.

[0051] When the inner cable 72 is pulled, the link mechanism 66 of the brake pad section 65, which is connected to the other end of the inner cable 72, rotates counterclockwise around the pin. When the link mechanism 66 rotates, the rod section 67, which is connected to the arm of the link mechanism 66, is pulled rearward. When the force pulling the rod section 67 exceeds the pressing force of the spring 69, the pad main body 68 moves to a separated state in which it is separated from the side frame 12 (see FIG. 5A). In this way, the cable section 70 transmits the operating force input to the operating handle 60, and the brake pad section 65 moves to the separated state. While an operating force is being input to the operating handle 60, the brake pad section 65 does not generate a braking force.

[0052] The worker can move the pallet 50 by pulling the pallet 50 to the left while holding the operating portion 60a of the operating handle 60 together with the grip portion 56. This allows the user to pull the pallet 50 out to the pull-out position P2 (see FIG. 3).

[0053] When it is desired to stop the pallet 50 while it is being pulled out to the pulled-out position P2, the worker releases the operating force input to the operating handle 60. That is, the worker simply takes his or her hand off the operating handle 60. When the operating force is released, the operating handle 60 is pulled by the tension of the inner cable 72 and rotates clockwise around the pin 61. When the operating handle 60 rotates, the inner cable 72 also moves toward the brake pad portion 65.

[0054] When the inner cable 72 moves, the link mechanism 66 of the brake pad portion 65, which is connected to the other end of the inner cable 72, rotates clockwise around the pin. When the link mechanism 66 rotates, the rod portion 67 connected to the arm of the link mechanism 66 is pushed forward. When the rod portion 67 is pushed out, the pad main body 68, which is pressed by the spring 69, comes into contact with the side frame 12 (see FIG. 4A). As a result, a braking force is generated by the brake pad portion 65, and the movement of the pallet 50 is restricted.

[0055] 2 and 3, when the pallet 50 is pulled out to the pulled-out position, the operator operates the locking mechanism 57 to fix the pallet 50 at the pulled-out position P2. When the pallet 50 is in the pulled-out position, the expansion area A2 of the pallet 50 is pulled out from the space S. This allows the workpiece W to be separated from the parts and structures on the far right side of the processing machine body 10. This makes it possible to suppress interference between the workpiece W and the processing machine body 10, making it easier to handle the workpiece W when setting it on the pallet 50.

[0056] When the setting of the workpieces W on the pallet 50 is completed, the user moves the pallet 50 to the regular position P1. The operation of moving the pallet 50 from the pull-out position P2 to the regular position P1 is the same as the operation of moving the pallet 50 from the regular position P1 to the pull-out position P2. Therefore, the explanation of the operation of moving the pallet 50 from the pull-out position P2 to the regular position P1 will be omitted.

[0057] When the pallet 50 is pushed to the normal position P1, the processing area A1 of the pallet 50 is located in the processing range R (see FIG. 1). The control panel 100 controls the head drive mechanism 15 to perform laser processing within the processing range R while moving the processing head 30. This allows laser processing to be performed on the workpiece W located in the processing area A1.

[0058] Thus, according to the laser processing machine 1 of this embodiment, the pallet 50 on which the workpiece W is placed is configured to be movable. Since the processing machine body 10 is provided with the brake mechanism 5, the movement of the pallet 50 can be stopped by the brake mechanism 5. Therefore, it is possible to prevent the pallet 50 from moving unexpectedly. This makes it possible to prevent the pallet 50 from coming into contact with the worker.

[0059] In this embodiment, the pallet 50 moves between a regular position P1 where the workpiece W is located in a processing range R where the processing head 30 moves to perform laser processing on the workpiece W, and a pulled-out position P2 where the pallet 50 is pulled out to the left from the regular position P1. The brake mechanism 5 stops the movement of the pallet 50 at an intermediate position between the regular position P1 and the pulled-out position P2.

[0060] According to this configuration, the movement of the pallet 50 can be stopped by the brake mechanism 5 at an intermediate position where the pallet 50 can move freely. This makes it possible to prevent the pallet 50 from moving unexpectedly. Therefore, it is possible to prevent the pallet 50 from coming into contact with a worker.

[0061] In this embodiment, the processing machine body 10 is provided with a locking mechanism 57 that fixes the pallet 50 at each of the normal position P1 and the drawn-out position P2. The pallet 50 moves between the normal position P1 and the drawn-out position P2 when the fixation of the pallet 50 by the locking mechanism 57 is released.

[0062] According to this configuration, when the locking mechanism 57 is released from the pallet 50, the pallet 50 becomes free to move. The brake mechanism 5 restricts the free movement of the pallet 50, thereby preventing the pallet 50 from moving unexpectedly. This makes it possible to prevent the pallet 50 from coming into contact with a worker.

[0063] In this embodiment, the pallet 50 has handles 55, 56 that an operator grasps in order to move the pallet 50. The pallet 50 moves between the regular position P1 and the withdrawn position P2 when an operator grasps the handles 55, 56 and moves the pallet 50.

[0064] According to this configuration, the pallet 50 can be moved by the manual force of a worker. Therefore, when the locking mechanism 57 is released from the locking of the pallet 50, the pallet 50 becomes freely movable. In this regard, by stopping the movement of the pallet 50 with the brake mechanism, it is possible to prevent the pallet 50 from moving unexpectedly. Therefore, it is possible to prevent the pallet 50 from coming into contact with the worker.

[0065] In this embodiment, the brake mechanism 5 has an operating handle 60 provided on the handle portion 56 and gripped by an operator to input an operating force, a brake pad portion 65 that generates a braking force to stop the movement of the pallet 50, and a cable portion 70 connected between the operating handle 60 and the brake pad portion 65 and operates the brake pad portion 65 by transmitting the operating force input to the operating handle 60.

[0066] According to this configuration, the movement of the pallet 50 can be stopped by operating the brake pad portion 65 with the operating handle 60. This allows the worker to arbitrarily switch between moving and stopping the pallet 50, making it possible to prevent the pallet 50 from moving unexpectedly when setting up the workpiece W. In addition, since the operating handle 60 is attached to the handle portion 56 for moving the pallet 50, when the worker places his or her hand on the handle portion 56 to move the pallet 50, the operating handle 60 can be operated at the same time. This allows the worker to easily perform the stop operation and release operation of the pallet 50 during the action of moving the pallet 50.

[0067] In this embodiment, the brake pad portion 65 generates a braking force while (period) no operating force is being input to the operating handle 60.

[0068] According to this configuration, the brake pad portion 65 generates a braking force unless the worker operates the operating handle 60 and inputs an operating force to the operating handle 60. Therefore, the movement of the pallet 50 remains restricted unless the worker operates the operating handle 60. Since the pallet 50 becomes movable only when the worker operates the operating handle 60, it is possible to prevent the pallet 50 from moving unexpectedly.

[0069] In this embodiment, the brake pad portion 65 is configured to be switchable between a contact state in which it is in contact with the side frame 12 (frame portion) of the processing machine body 10 and a spaced state in which it is spaced from the side frame 12 of the processing machine body 10. The brake pad portion 65 generates a braking force in the contact state.

[0070] According to this configuration, a braking force is obtained by the frictional force between the brake pad portion 65 and the side frame 12, so that the movement of the pallet 50 can be restricted steplessly within the intermediate position. This allows the worker to stop the pallet 50 at the position he / she desires.

[0071] The pallet 50 includes a processing area A1 that supports a workpiece W in a processing range R, and an extension area A2 that extends from the processing area A1 in the left-right direction.

[0072] According to this configuration, the size of the pallet 50 is expanded to the expansion area A2. As a result, in addition to a workpiece of a size corresponding to the processing range R, a workpiece W of a size larger than the processing range R can be placed on the pallet 50. This improves the degree of freedom of the workpiece W that the laser processing machine 1 can handle. Also, by pulling out the pallet 50, the setup for the large-sized workpiece W can be easily performed.

[0073] In the above embodiment, the extension area A2 of the pallet 50 is an open area. However, similar to the processing area A1, a plurality of skids 52 may be arranged. In addition, the extension area A2 may be covered with a plate-shaped cover in consideration of the role of blocking the laser light and preventing the scattering of spatter.

[0074] As described above, the embodiment of the present invention has been described, but the description and drawings forming a part of this disclosure should not be understood as limiting this invention. From this disclosure, various alternative embodiments, examples and operating techniques will become apparent to those skilled in the art. [Explanation of symbols]

[0075] 1 Laser processing machine 5 Brake mechanism 10 Processing machine body 11 Foundation 12 Side frame 13 Guide member 15 Head drive mechanism 16 X-axis carriage 17 Posts 18 Beam 19 Y-axis carriage 30 Processing head 50 pallets 51 Frame 51a~51c Frame members 51a1, 51a2 Engagement part 52 Skid 53 Clamp section 55, 56 Handle 57 Locking mechanism 60 Operating handle 60a Operation unit 60b Connection 61 pin 65 Brake pad section 66 Link mechanism 67 Rod section 68 Pad body 69 Spring 70 Cable section 71 Outer cable 72 Inner cable 73 Bracket 100 Control Panel 110 Laser Oscillator A1 Machining area A2 expansion area R Processing range S space Double work P1 Normal position P2 drawer position

Claims

1. A pallet on which the workpiece is placed; a processing head that irradiates a laser beam from above the workpiece placed on the pallet to perform laser processing on the workpiece; a processing machine body that supports the pallet movably along a first direction parallel to an in-plane direction of the workpiece, The pallet is The laser processing machine includes a brake mechanism for stopping the movement of the pallet.

2. The pallet is The processing head moves between a normal position where the workpiece is located in a processing range where the laser processing is performed on the workpiece and a pull-out position where the workpiece is pulled out from the normal position along the first direction, The brake mechanism includes: The movement of the pallet is stopped at an intermediate position between the normal position and the withdrawn position.

2. The laser processing machine according to claim 1.

3. The processing machine body is a locking mechanism for fixing the pallet at each of the normal position and the pulled-out position, The pallet is When the locking mechanism is released from the locking of the pallet, the pallet moves between the normal position and the drawn-out position.

3. The laser processing machine according to claim 2.

4. The pallet is A handle portion is provided for an operator to grip in order to move the pallet, The operator grasps the handle and moves the pallet, thereby moving the pallet between the regular position and the drawn-out position.

4. The laser processing machine according to claim 2 or 3.

5. The brake mechanism includes: an operation handle provided on the grip portion and gripped by the operator to input an operation force; A brake pad portion that generates a braking force to stop the movement of the pallet; a cable portion connected between the operating handle and the brake pad portion, and transmitting the operating force input to the operating handle to operate the brake pad portion.

5. The laser processing machine according to claim 4.

6. The brake pad portion is The braking force is generated while the operating force is not being input to the operating handle.

6. The laser processing machine according to claim 5.

7. The brake pad portion is The frame portion of the processing machine body is configured to be switchable between a contact state in which the frame portion of the processing machine body is in contact with the contact state and a spaced state in which the frame portion of the processing machine body is spaced from the contact state, The braking force is generated in the contact state.

7. The laser processing machine according to claim 6.

8. The pallet is a processing area for supporting the workpiece in the processing range; an extension region extending from the processing region along the first direction; 8. The laser processing machine according to claim 2 .

Images