A multi-axis machining tool with a protective function

Abstract

The present invention relates to the field of laser cutting machine tools, and particularly to a multi-axis processing machine tool with a protection function, including a sawtooth conveyor belt machine tool, an electronically controlled Z-axis moving mechanism, an electronically controlled X-axis moving mechanism, an electronically controlled Y-axis moving mechanism, a laser cutting machine, etc. In a multi-axis processing machine tool with a protection function according to the present invention, a transparent observation piece and a filter piece form an observation window with a small range of filter protection outside the laser cutting gun head, which is convenient for staff to closely observe the working state of the laser cutting gun head. At the same time, a water flow protection layer is sprayed on the surface of the transparent observation piece through a liquid spraying head on the flow splitting ring pipe, and high-temperature waste residues and flue gas sputtering towards the transparent observation piece are intercepted in a timely manner. It overcomes the shortcomings that a multi-axis laser cutting machine tool will generate strong ultraviolet and visible light radiation, causing irreversible damage to the human eyes and skin, and the light-shielding pieces surrounded on a large area along the machine tool edge will hinder the staff from closely observing.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting machine tools, and particularly to a multi-axis processing machine tool with a protection function. Background Art

[0002] An automated multi-axis laser cutting machine tool is an advanced automated device mainly used for cutting precision and complex parts. This device usually uses high-energy laser pulses to locally heat the material, and through heat conduction, the material is melted to form a specific molten pool, thereby achieving cutting. During the laser cutting process, strong ultraviolet and visible light radiations are generated. These lights can penetrate the refractive medium of the human eye and directly act on the retina and cornea. When inspection personnel and workers who do not wear safety goggles correctly approach and are exposed to this radiation for a long time, it may cause dangers such as retinal burns, corneal injuries, and even blindness to the human body. Moreover, this strong ultraviolet and visible light radiation will also cause irreversible damage to the skin of the human body that is exposed for a long time. Although the existing multi-axis laser cutting machine tools will surround a large area around the machine tool edge with a light-shielding sheet, this light-shielding sheet is not conducive to the staff observing the working state of the laser cutting gun head at close range, affecting the processing efficiency of the staff to adjust the working state of the laser cutting gun head. Summary of the Invention

[0003] In order to overcome the shortcomings that the multi-axis laser cutting machine tool generates strong ultraviolet and visible light radiations that cause irreversible damage to the human eyes and skin, and the light-shielding sheet surrounded on a large area around the machine tool edge will hinder the staff's close observation, the present invention provides a multi-axis processing machine tool with a protection function.

[0004] Technical Solution: A multi-axis processing machine tool with a protection function includes a serrated conveyor belt machine tool, a cross beam frame, a multi-axis moving unit, a laser cutting machine, a laser cutting gun head, a conical skeleton platform, a transparent observation sheet, an infusion pipe, a shunt ring pipe, a liquid spraying head, a liquid collecting ring pipe, a filter sheet, and a conical fixing platform; the cross beam frame is fixedly connected to the serrated conveyor belt machine tool; the laser cutting machine is installed on the multi-axis moving unit; the laser cutting gun head is installed on the laser cutting machine; the conical skeleton platform surrounding the outside of the laser cutting gun head is fixedly connected to the laser cutting machine; a plurality of transparent observation sheets are equidistantly arranged around the conical skeleton platform; the infusion pipe is fixedly connected to the laser cutting machine; the shunt ring pipe is fixedly connected inside the conical skeleton platform; the shunt ring pipe is connected to the infusion pipe; the liquid spraying heads corresponding to the number and position of the transparent observation sheets are connected to the shunt ring pipe; the liquid collecting ring pipe is fixedly connected to the bottom of the conical skeleton platform, and the liquid collecting ring pipe is a C-shaped tubular structure with an upward opening; a conical fixing platform is provided on the conical skeleton platform; a circle of filter sheets is fixedly connected to the conical fixing platform, and the filter sheets surround the outside of all the transparent observation sheets.

[0005] Furthermore, the infusion pipe surrounds the outer surface of the laser cutting gun head of the laser cutting machine.

[0006] Furthermore, a liquid inlet pipe and a liquid outlet pipe are successively fixedly connected to the electric control Z-axis moving mechanism; the liquid inlet pipe is connected to the infusion pipe; the liquid outlet pipe is connected to the liquid collecting ring pipe; both the liquid inlet pipe and the liquid outlet pipe are made of elastic telescopic pipe materials.

[0007] Furthermore, the liquid spraying head is set as a horizontally elongated flat nozzle structure.

[0008] Furthermore, a hollowed-out opening structure is provided on the filter film.

[0009] Furthermore, the conical fixed table is rotatably connected to the conical skeleton table; a first straight gear is fixedly connected to the conical fixed table; a driving motor is installed on the laser cutting machine; a second straight gear is fixedly connected to the output shaft of the driving motor; the second straight gear meshes with the first straight gear.

[0010] Furthermore, a fixing frame is fixedly connected to the laser cutting machine; a light-shielding plate for shielding the hollowed-out opening structure of the filter film is fixedly connected to the fixing frame.

[0011] Furthermore, a plug piece is inserted into any liquid spraying head on the shunt ring pipe that is not aligned with the light-shielding plate; an electric push rod is installed on the conical skeleton table; the telescopic end of the electric push rod is fixedly connected to the plug piece.

[0012] Furthermore, an air jet head is fixedly connected inside the conical skeleton table; a blower is installed on the laser cutting machine; an air delivery pipe is commonly connected between the air outlet of the blower and the air inlet of the air jet head.

[0013] Furthermore, the air jet head is located below the liquid spraying head corresponding to the plug piece.

[0014] Beneficial effects: A multi-axis processing machine tool with a protection function according to the present invention. The crossbeam of the sawtooth conveyor belt machine tool is equipped with a laser cutting machine through an electric control Z-axis moving mechanism, an electric control X-axis moving mechanism, and an electric control Y-axis moving mechanism. A plurality of transparent observation pieces are provided on the conical skeleton table to surround the laser cutting gun head of the laser cutting machine. A circle of filter films is further provided outside the transparent observation pieces, realizing the formation of a small-range observation window with filter protection directly outside the laser cutting gun head, facilitating the staff to closely observe the working state of the laser cutting gun head. At the same time, each liquid spraying head on the shunt ring pipe sprays a water flow protection layer on the surface of the corresponding transparent observation piece respectively, intercepting the high-temperature waste residues and flue gases sputtering towards the transparent observation piece in time, effectively improving the service life of the transparent observation piece. In addition, an adjustable-direction hollowed-out opening structure is also provided on the filter film, enabling the staff wearing goggles to make a more careful directional observation of the working state of the laser cutting gun head in a short time; overcoming the shortcomings in the prior art that the multi-axis laser cutting machine tool will generate strong ultraviolet and visible light radiation, causing irreversible damage to the human eyes and skin, and the large-area light-shielding sheets surrounded on the edge of the machine tool will hinder the staff's close observation. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0016] Figure 2 is a three-dimensional structure schematic diagram of the electric control Z-axis moving mechanism, electric control X-axis moving mechanism and electric control Y-axis moving mechanism of the present invention;

[0017] Figure 3 is a three-dimensional structure schematic diagram of the liquid inlet pipe and liquid outlet pipe of the present invention;

[0018] Figure 4 is a three-dimensional structure schematic diagram of the light shielding plate of the present invention;

[0019] Figure 5 is a three-dimensional structure schematic diagram of the filter of the present invention;

[0020] Figure 6 is a three-dimensional structure schematic diagram of the conical skeleton platform of the present invention;

[0021] Figure 7 is a three-dimensional structure schematic diagram of the transparent observation sheet of the present invention;

[0022] Figure 8 is a three-dimensional structure schematic diagram of the flow dividing ring pipe and the liquid spraying head of the present invention;

[0023] Figure 9 is a three-dimensional structure schematic diagram of the liquid spraying head and the plug sheet of the present invention;

[0024] Figure 10 is a sectional view of the three-dimensional structure of the liquid collecting ring pipe of the present invention;

[0025] Figure 11 is a three-dimensional structure schematic diagram of the air jet head and the blower of the present invention.

[0026] Reference Numerals: 1 - Sawtooth conveyor belt machine tool, 2 - Cross beam frame, 21 - Electric control Z-axis moving mechanism, 22 - Electric control X-axis moving mechanism, 23 - Electric control Y-axis moving mechanism, 3 - Laser cutting machine, 31 - Laser cutting gun head, 4 - Conical skeleton platform, 41 - Transparent observation sheet, 51 - Liquid infusion pipe, 52 - Flow dividing ring pipe, 53 - Liquid spraying head, 54 - Liquid collecting ring pipe, 55 - Liquid inlet pipe, 56 - Liquid outlet pipe, 6 - Filter, 601 - Hollow-out opening structure, 61 - Conical fixing platform, 62 - First straight gear, 63 - Driving motor, 64 - Second straight gear, 65 - Fixing frame, 66 - Light shielding plate, 71 - Plug sheet, 72 - Electric push rod, 8 - Air jet head, 81 - Blower, 82 - Air duct. Detailed Description of the Invention

[0027] The present invention will be specifically introduced below in conjunction with the drawings and specific embodiments.

[0028] Example 1

[0029] A multi-axis machining tool with a protection function, as Figures 1 - 10 shown, including a serrated conveyor belt machine tool 1, a crossbeam frame 2, an electric control Z-axis moving mechanism 21, an electric control X-axis moving mechanism 22, an electric control Y-axis moving mechanism 23, a laser cutting machine 3, a laser cutting gun head 31, a conical skeleton platform 4, a transparent observation sheet 41, an infusion tube 51, a shunt ring tube 52, a liquid spraying head 53, a liquid collecting ring tube 54, a filter film 6 and a conical fixing platform 61; A crossbeam frame 2 is fixedly connected to the serrated conveyor belt machine tool 1; An electric control Z-axis moving mechanism 21 is installed on the crossbeam frame 2, and the electric control Z-axis moving mechanism 21 is composed of a Z-axis direction guide rail and a Z-axis direction electric control slider; An electric control X-axis moving mechanism 22 is installed on the Z-axis direction electric control slider of the electric control Z-axis moving mechanism 21, and the electric control X-axis moving mechanism 22 is composed of an X-axis direction guide rail and an X-axis direction electric control slider; An electric control Y-axis moving mechanism 23 is installed on the X-axis direction electric control slider of the electric control X-axis moving mechanism 22, and the electric control Y-axis moving mechanism 23 is composed of a Y-axis direction guide rail and a Y-axis direction electric control slider; A laser cutting machine 3 is installed on the Y-axis direction electric control slider of the electric control Y-axis moving mechanism 23; A laser cutting gun head 31 is installed on the laser cutting machine 3; A conical skeleton platform 4 surrounding the outside of the laser cutting gun head 31 is fixedly connected to the laser cutting machine 3; A number of transparent observation sheets 41 are equidistantly embedded around the conical skeleton platform 4; An infusion tube 51 is fixedly connected to the laser cutting machine 3; A shunt ring tube 52 is fixedly connected inside the conical skeleton platform 4; The shunt ring tube 52 is connected to the infusion tube 51; Liquid spraying heads 53 corresponding to the number and position of the transparent observation sheets 41 are connected to the shunt ring tube 52; All the liquid spraying heads 53 are set to a horizontally elongated flat nozzle structure; A liquid collecting ring tube 54 is fixedly connected to the bottom of the conical skeleton platform 4, and the liquid collecting ring tube 54 is a C-shaped tubular structure with an upward opening; A conical fixing platform 61 is provided on the conical skeleton platform 4; A circle of filter films 6 is fixedly connected to the conical fixing platform 61, and the filter films 6 surround the outside of all the transparent observation sheets 41.

[0030] As Figure 2 、 Figure 3 and Figure 6As shown, the infusion tube 51 surrounds the outer surface of the laser cutting gun head 31 of the laser cutting machine 3. The cooling liquid flowing through the infusion tube 51 can closely adhere to the outer surface of the laser cutting gun head 31 to cool it down, preventing the laser cutting gun head 31 of the laser cutting machine 3 from frequently giving high-temperature warnings and high-temperature shutdown protection due to continuous long-term operation. An inlet pipe 55 and an outlet pipe 56 are successively fixed on the electric control Z-axis moving mechanism 21. One end of the inlet pipe 55 is connected to the infusion tube 51. The other end of the inlet pipe 55 is externally connected to the outlet end of the cooling liquid circulation and transportation device. One end of the outlet pipe 56 is connected to the liquid collection ring pipe 54. The other end of the outlet pipe 56 is externally connected to the inlet end of the cooling liquid circulation and transportation device. The externally connected cooling liquid circulation and transportation device is internally provided with a filtering component. Both the inlet pipe 55 and the outlet pipe 56 are made of elastic materials. During the process of the X-axis direction electric control slider on the electric control X-axis moving mechanism 22 driving the laser cutting machine 3 and the conical skeleton table 4 and pulling the inlet pipe 55 and the outlet pipe 56 to move left and right, the inlet pipe 55 and the outlet pipe 56 made of elastic materials can maintain a non-drooping state, preventing the inlet pipe 55 and the outlet pipe 56 from drooping down onto the sawtooth conveyor machine tool 1 and affecting the transportation of workpieces.

[0031] As Figures 3 - 5 shown, the filter plate 6 is provided with a hollow-out structure 601. The conical fixing table 61 is rotatably connected to the conical skeleton table 4. A first straight gear 62 is fixed on the conical fixing table 61. A driving motor 63 is installed on the laser cutting machine 3. A second straight gear 64 is fixed on the output shaft of the driving motor 63. The second straight gear 64 meshes with the first straight gear 62. A fixing frame 65 is fixed on the laser cutting machine 3. A light-shielding plate 66 is fixed on the fixing frame 65. The light-shielding plate 66 initially blocks the hollow-out structure 601 of the filter plate 6.

[0032] The conventional working steps of a multi-axis machine tool with a protection function according to the present invention are as follows.

[0033] First, the sawtooth conveyor machine 1 gradually transfers the workpiece to the bottom of the laser cutting gun head 31 of the laser cutting machine 3, and the electric-controlled Z-axis moving mechanism 21, the electric-controlled X-axis moving mechanism 22 and the electric-controlled Y-axis moving mechanism 23 jointly adjust the X-axis, Y-axis and Z-axis positions of the laser cutting machine 3 according to the specified program system, so that the laser cutting gun head 31 of the laser cutting machine 3 can automatically laser cut the workpiece on the sawtooth conveyor machine 1. At this time, the filter 6 surrounds each transparent observation piece 41 on the outside of the laser cutting gun head 31. , the strong ultraviolet and visible light radiation generated during the operation of the laser cutting gun head 31 are filtered, so that when the staff and the inspectors passing by mistakenly see the working laser cutting gun head 31 without wearing goggles, the damage to the eyes of the personnel caused by the strong ultraviolet and visible light radiation is weakened, giving the people who lack protection and mistakenly see the laser cutting gun head 31 a buffer time to put on the goggles again. At the same time, the liquid collecting ring tube 54 moves downward with the laser cutting gun head 31 to the workpiece, so that the liquid collecting ring tube 54 can block the smoke and waste residue from leaking to the outside from the gap between it and the workpiece to the outside as much as possible.

[0034] During this process, the external coolant circulation and delivery equipment continuously delivers coolant to the infusion pipe 51 and the shunt ring pipe 52 through the liquid inlet pipe 55. The coolant in the shunt ring pipe 52 is sprayed onto the surface of the corresponding transparent observation piece 41 through each spray head 53. After the coolant is sprayed onto the surface of the transparent observation piece 41 through the flat mouth structure of the spray head 53, the coolant will flow through the surface of the transparent observation piece 41 in a thin layer flattened state, and flow downward to the liquid collecting ring pipe 54 to form waste liquid. The waste liquid then flows through the liquid outlet pipe 56 and flows back to the external coolant circulation and delivery equipment. Subsequently, the waste liquid is filtered through the built-in filter component of the coolant circulation and delivery equipment to re-form clean coolant, thereby achieving the effect of filtering the surface of the transparent observation piece 41. There is water flowing continuously on the surface to form a protective layer, which is a transparent flowing water curtain. Therefore, the observation line of sight of the transparent observation piece 41 is less blocked, and the staff can clearly observe the working status of the laser cutting gun head 31 through the filter 6, the transparent observation piece 41 and the water flow protection layer in sequence. At this time, the water flow protection layer can not only isolate the high-temperature light and heat generated during the operation of the laser cutting gun head 31, but also intercept the high-temperature waste residue and flue gas sputtered toward the transparent observation piece 41, so as to avoid the transparent observation piece 41 from being worn or adhered due to the long-term impact of the sputtered high-temperature waste residue, which affects the observation effect of the transparent observation piece 41 and extends the service life of the transparent observation piece 41.

[0035] When the staff needs to observe the working state of the laser cutting gun head 31 more carefully within a short period of time, the staff first wears safety goggles, and then controls the driving motor 63 to drive the second straight gear 64 to rotate. The second straight gear 64 meshes with the first straight gear 62 to drive the conical fixing platform 61 and the filter 6 to rotate, so that the hollow opening structure 601 of the filter 6 rotates away from the light shielding plate 66 and moves to align with the position where the staff is located. At this time, the staff can pass through the transparent observation sheet 41 corresponding to the hollow opening structure 601 of the filter 6 to carefully and directionally observe the working state of the laser cutting gun head 31 in a clearer observation state.

[0036] Embodiment 2

[0037] Based on Embodiment 1, as Figures 1 - 10 shown, a plug piece 71 is inserted on any liquid spraying head 53 of the flow dividing ring pipe 52 in this embodiment that is not aligned with the light shielding plate 66; two electric push rods 72 are installed on the conical skeleton platform 4; the telescopic ends of the two electric push rods 72 are commonly fixed to the plug piece 71.

[0038] In the normal working state of the laser cutting machine 3, the telescopic ends of the two electric push rods 72 jointly push the plug piece 71 to be pulled out upward from the inside of the liquid spraying head 53, so that the plug piece 71 does not block the outlet end of the liquid spraying head 53, enabling all the liquid spraying heads 53 to respectively spray a water flow protection layer onto the corresponding transparent observation sheet 41.

[0039] When the staff adjusts the hollow opening structure 601 of the filter 6 to align with the liquid spraying head 53 corresponding to the plug piece 71, the observer also needs to stand at the position facing the plug piece 71 for observation. The telescopic ends of the two electric push rods 72 jointly pull the plug piece 71 to be inserted back into the inside of the liquid spraying head 53, so that the plug piece 71 blocks the outlet end of the liquid spraying head 53. At this time, the coolant flowing through the flow dividing ring pipe 52 does not spray out from this liquid spraying head 53, so that there is no longer a water flow protection layer on the surface of the transparent observation sheet 41 corresponding to this liquid spraying head 53. Thus, when the staff observes through the hollow opening structure 601 of the filter 6 into the inside of this transparent observation sheet 41, the surface of the transparent observation sheet 41 is no longer blocked by the water flow protection layer, improving the observability of directional observation within a short period of time.

[0040] Embodiment 3

[0041] Based on Embodiment 2, as Figures 1 - 11 shown, an air jet head 8 is fixedly connected inside the conical skeleton platform 4 in this embodiment; a blower 81 is installed on the laser cutting machine 3; an air duct 82 is commonly connected between the air outlet of the blower 81 and the air inlet of the air jet head 8; the air jet head 8 is located below the liquid spraying head 53 corresponding to the plug piece 71, and the air outlet of the air jet head 8 is aligned with the transparent observation sheet 41 corresponding to this liquid spraying head 53.

[0042] When the staff adjusts the hollow opening structure 601 of the filter 6 to align with the liquid spraying head 53 corresponding to the plug 71, the electric push rod 72 inserts the plug 71 into the liquid spraying head 53, so that the liquid spraying head 53 stops spraying the coolant onto the transparent observation sheet 41 aligned with the hollow opening structure 601 of the filter 6. At the same time, the fan 81 continuously conveys air flow to the air jet head 8 through the air delivery pipe 82, so that the air flow output from the air jet head 8 covers the surface of the transparent observation sheet 41 from top to bottom instead of the coolant, forming an air flow protection layer. Since the visibility of the air flow protection layer is much greater than that of the water flow protection layer, the air flow protection layer can provide an observation protection layer on the surface of the transparent observation sheet 41 to prevent the splashing of high-temperature waste residues and flue gas without obstruction, ensuring the observability of the directional observation within a short time.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-axis machining tool with a protection function, comprising: a serrated conveyor belt machine tool (1); a cross beam frame (2) fixedly connected to the serrated conveyor belt machine tool (1); a multi-axis moving unit installed on the cross beam frame (2); a laser cutting machine (3) installed on the multi-axis moving unit; a laser cutting gun head (31) installed on the laser cutting machine (3); It is characterized in that It further includes a conical skeleton platform (4); a conical skeleton platform (4) surrounding the outside of the laser cutting gun head (31) is fixedly connected to the laser cutting machine (3); a number of transparent observation pieces (41) are equidistantly arranged around the conical skeleton platform (4); an infusion pipe (51) is fixedly connected to the laser cutting machine (3); a flow dividing ring pipe (52) is fixedly connected inside the conical skeleton platform (4); the flow dividing ring pipe (52) is connected to the infusion pipe (51); The flow dividing ring pipe (52) is connected to spray heads (53) corresponding to the number and positions of the transparent observation pieces (41); a liquid collecting ring pipe (54) is fixedly connected to the bottom of the conical skeleton platform (4), and the liquid collecting ring pipe (54) is a C-shaped tubular structure with an upward opening; a conical fixing platform (61) is provided on the conical skeleton platform (4); a circle of filter plates (6) is fixedly connected to the conical fixing platform (61), and the filter plates (6) surround all the transparent observation pieces (41); A hollowed-out opening structure (601) is formed on the filter plate (6); A fixing frame (65) is fixedly connected to the laser cutting machine (3); a light shielding plate (66) for shielding the hollowed-out opening structure (601) of the filter plate (6) is fixedly connected to the fixing frame (65); A plug piece (71) is inserted on any one of the spray heads (53) on the flow dividing ring pipe (52) that is not aligned with the light shielding plate (66); an electric push rod (72) is installed on the conical skeleton platform (4); the telescopic end of the electric push rod (72) is fixedly connected to the plug piece (71).

2. The multi-axis machining tool with a protection function according to claim 1, wherein, The infusion pipe (51) surrounds the outer surface of the laser cutting gun head (31) of the laser cutting machine (3).

3. A multi-axis machining tool with a protection function according to claim 1, characterized in that, A liquid inlet pipe (55) and a liquid outlet pipe (56) are successively fixedly connected to the electric control Z-axis moving mechanism (21); the liquid inlet pipe (55) is connected to the infusion pipe (51); the liquid outlet pipe (56) is connected to the liquid collecting ring pipe (54); both the liquid inlet pipe (55) and the liquid outlet pipe (56) are made of elastic telescopic pipe materials.

4. A multi-axis machining tool with a protection function according to claim 1, characterized in that, The spray head (53) is set as a horizontally elongated flat nozzle structure.

5. A multi-axis machining tool with a protection function according to claim 4, characterized in that, The conical fixing platform (61) is rotatably connected to the conical skeleton platform (4); a first straight gear (62) is fixedly connected to the conical fixing platform (61); a driving motor (63) is installed on the laser cutting machine (3); a second straight gear (64) is fixedly connected to the output shaft of the driving motor (63); the second straight gear (64) meshes with the first straight gear (62).

6. The multi-axis machining tool with a protection function according to claim 5, characterized in that, An air jet head (8) is fixedly connected inside the conical skeleton platform (4); a blower (81) is installed on the laser cutting machine (3); an air duct (82) is commonly connected between the air outlet of the blower (81) and the air inlet of the air jet head (8).

7. A multi-axis machining tool with a protection function according to claim 6, characterized in that, The air jet head (8) is located below the spray head (53) corresponding to the plug piece (71).

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