Multi-axis machining tool with protection function

Abstract

The invention relates to the field of laser cutting processing machine tools, in particular to a multi-axis processing machine tool with a protection function, which comprises a sawtooth conveying belt machine tool, an electric control Z-axis moving mechanism, an electric control X-axis moving mechanism, an electric control Y-axis moving mechanism, a laser cutting machine and the like. According to the multi-axis machining tool with the protection function, the transparent observation piece and the light filter form a circle of observation window with light filtering protection in a small range on the outer side of the laser cutting gun head, so that a worker can conveniently observe the working state of the laser cutting gun head in a close range; and meanwhile, a water flow protection layer is sprayed on the surface of the transparent observation sheet through a liquid spraying head on the shunting ring pipe, so that high-temperature waste residues and flue gas which are sputtered towards the transparent observation sheet are intercepted in time. The defects that a multi-axis laser cutting machine tool can generate strong ultraviolet rays and visible light radiation to cause irreversible damage to eyes and skin of a human body, and a shading sheet surrounding the edge of the machine tool in a large area can hinder close-range observation of a worker are overcome.

Description

Technical Field

[0001] The invention relates to the field of laser cutting machine tools, and in particular to a multi-axis machine tool with a protective function. Background Art

[0002] Automated multi-axis laser cutting machine is an advanced automated equipment, mainly used for cutting precision and complex parts. This equipment usually uses high-energy laser pulses to locally heat the material, and melts the material through heat conduction to form a specific molten pool, thereby achieving cutting. In the laser cutting process, strong ultraviolet and visible light radiation will be generated. These rays can pass through the refractive medium of the human eye and directly act on the retina and cornea. When inspectors and staff who do not wear goggles correctly as required approach and are exposed to this radiation for a long time, it may cause retinal burns, corneal damage and even blindness to the human body. The strong ultraviolet and visible light radiation will also cause irreversible damage to the human body's skin that is exposed for a long time. Although the existing multi-axis laser cutting machine will have a large area of ​​​​a circle of shades around the edge of the machine, the shade is not conducive to the staff's close observation of the working status of the laser cutting gun head, affecting the staff's efficiency in adjusting the working status of the laser cutting gun head. Summary of the invention

[0003] In order to overcome the shortcomings that multi-axis laser cutting machines generate strong ultraviolet and visible light radiation that can cause irreversible damage to human eyes and skin, while large-area shading sheets surrounding the edge of the machine hinder close observation by workers, the present invention provides a multi-axis machining center with a protective function.

[0004] Technical solution: A multi-axis processing machine tool with protective function, including a sawtooth conveyor machine tool, a crossbeam frame, a multi-axis mobile unit, a laser cutting machine, a laser cutting gun head, a conical frame table, a transparent observation piece, an infusion tube, a shunt ring tube, a liquid spray head, a liquid collection ring tube, a filter and a conical fixed table; the sawtooth conveyor machine tool is fixedly connected with a crossbeam frame; the multi-axis mobile unit is equipped with a laser cutting machine; the laser cutting gun head is equipped with a laser cutting machine; the laser cutting machine is fixedly connected with a cone surrounding the outside of the laser cutting gun head. shaped frame platform; a number of transparent observation pieces are equidistantly arranged around the conical frame platform; an infusion tube is fixedly connected to the laser cutting machine; a shunt ring tube is fixedly connected inside the conical frame platform; the shunt ring tube is connected to the infusion tube; the shunt ring tube is connected to the spray heads corresponding to the number and position of the transparent observation pieces; a liquid collecting ring tube is fixedly connected to the bottom of the conical frame platform, and the liquid collecting ring tube is a C-shaped tubular structure with an opening facing upward; a conical fixed platform is arranged on the conical frame platform; a circle of filters is fixedly connected to the conical fixed platform, and the filters surround the outside of all the transparent observation pieces.

[0005] Furthermore, the infusion tube is surrounded by 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 fixedly connected to the electrically controlled Z-axis moving mechanism in sequence; the liquid inlet pipe is connected to the liquid infusion pipe; the liquid outlet pipe is connected to the liquid collecting ring pipe; and the liquid inlet pipe and the liquid outlet pipe are both made of elastic telescopic tube materials.

[0007] Furthermore, the liquid spray head is configured as a laterally elongated flat nozzle structure.

[0008] Furthermore, a hollow opening structure is provided on the filter.

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

[0010] Furthermore, a fixing frame is fixedly connected to the laser cutting machine; and a light shielding plate with a hollow opening structure for shielding the optical filter is fixedly connected to the fixing frame.

[0011] Furthermore, a plug is inserted into any liquid spray head on the flow dividing ring tube which is not aligned with the shading plate; an electric push rod is installed on the conical frame platform; and the plug is fixedly connected to the telescopic end of the electric push rod.

[0012] Furthermore, an air jet head is fixedly connected inside the conical frame platform; a fan is installed on the laser cutting machine; and an air supply pipe is connected between the air outlet of the fan and the air inlet of the air jet head.

[0013] Furthermore, the spray head is located below the liquid spray head corresponding to the plug.

[0014] Beneficial effect: The invention discloses a multi-axis processing machine tool with a protective function. The beam frame of the sawtooth conveyor machine tool is equipped with a laser cutting machine through an electric-controlled Z-axis moving mechanism, an electric-controlled X-axis moving mechanism and an electric-controlled Y-axis moving mechanism. A plurality of transparent observation plates are arranged on the conical frame table to surround the laser cutting gun head of the laser cutting machine. A circle of filters is also arranged on the outside of the transparent observation plates, so that a circle of small-scale observation windows with filter protection are directly formed on the outside of the laser cutting gun head, which is convenient for the staff to observe the working state of the laser cutting gun head at a close distance. At the same time, each spray head on the shunt ring pipe is respectively arranged on the corresponding transparent observation plates. A layer of water flow protection layer is sprayed on the surface of the observation piece to intercept the high-temperature waste slag and smoke splashing towards the transparent observation piece in time, effectively improving the service life of the transparent observation piece. In addition, the filter is also provided with a hollow opening structure with adjustable direction, so that the staff wearing goggles can make a more careful directional observation of the working status of the laser cutting gun head in a short time; it overcomes the shortcomings of 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 shading sheet on the edge of the machine tool will hinder the staff from close observation. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the sunshade of the present invention;

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

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

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

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

[0023] Fig. 9 It is a schematic diagram of the three-dimensional structure of the liquid spray head and the plug of the present invention;

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

[0025] Fig.11 It is a schematic diagram of the three-dimensional structure of the nozzle and the fan of the present invention.

[0026] Figure markings: 1-sawtooth conveyor machine, 2-crossbeam frame, 21-electrically controlled Z-axis moving mechanism, 22-electrically controlled X-axis moving mechanism, 23-electrically controlled Y-axis moving mechanism, 3-laser cutting machine, 31-laser cutting gun head, 4-conical skeleton table, 41-transparent observation piece, 51-infusion tube, 52-diversion ring tube, 53-spray head, 54-liquid collecting ring tube, 55-liquid inlet pipe, 56-liquid outlet pipe, 6-filter, 601-hollow mouth structure, 61-conical fixed table, 62-first spur gear, 63-driving motor, 64-second spur gear, 65-fixed frame, 66-shading plate, 71-plug plate, 72-electric push rod, 8-jet head, 81-fan, 82-air supply pipe. DETAILED DESCRIPTION

[0027] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] A multi-axis machining machine tool with a protective function, such as Figure 1-Figure 10 As shown, it includes a sawtooth conveyor machine 1, a crossbeam frame 2, an electric-controlled Z-axis moving mechanism 21, an electric-controlled X-axis moving mechanism 22, an electric-controlled Y-axis moving mechanism 23, a laser cutting machine 3, a laser cutting gun head 31, a conical skeleton table 4, a transparent observation piece 41, an infusion tube 51, a shunt ring tube 52, a liquid spray head 53, a liquid collection ring tube 54, a filter 6 and a conical fixed table 61; the sawtooth conveyor machine 1 is fixedly connected with a crossbeam frame 2; the crossbeam frame 2 is equipped with an electric-controlled Z-axis The moving mechanism 21, the electrically controlled Z-axis moving mechanism 21 is composed of a Z-axis direction guide rail and a Z-axis direction electrically controlled slider; the electrically controlled X-axis moving mechanism 22 is installed on the Z-axis direction electrically controlled slider of the electrically controlled Z-axis moving mechanism 21, and the electrically controlled X-axis moving mechanism 22 is composed of an X-axis direction guide rail and an X-axis direction electrically controlled slider; the electrically controlled Y-axis moving mechanism 23 is installed on the X-axis direction electrically controlled slider of the electrically controlled X-axis moving mechanism 22, and the electrically controlled Y-axis moving mechanism 23 is composed of a Y-axis direction guide rail and a Y-axis direction electrically controlled slider; the laser cutting machine 3 is installed on the Y-axis direction electrically controlled slider of the electrically controlled Y-axis moving mechanism 23; the laser cutting machine 3 is installed with a laser cutting gun head 31; the laser cutting machine 3 is fixedly connected with a conical frame platform 4 surrounding the outer side of the laser cutting gun head 31; a number of transparent observation plates 41 are equidistantly embedded around the conical frame 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 frame platform 4; the shunt ring tube 5 2 is connected to the infusion tube 51; the flow dividing ring tube 52 is connected to the liquid spray heads 53 corresponding to the number and position of the transparent observation pieces 41; all the liquid spray heads 53 are set as a horizontally elongated flat mouth structure; the bottom of the conical frame platform 4 is fixedly connected to a liquid collecting ring tube 54, and the liquid collecting ring tube 54 is a C-shaped tubular structure with an opening facing upward; the conical frame platform 4 is provided with a conical fixing platform 61; a circle of filters 6 are fixedly connected to the conical fixing platform 61, and the filters 6 surround the outside of all transparent observation pieces 41.

[0030] like 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, and the coolant flowing through the infusion tube 51 can be close to the outer surface of the laser cutting gun head 31 to cool it down, so as to avoid the laser cutting gun head 31 of the laser cutting machine 3 frequently having high temperature warnings and high temperature shutdown protection due to long-term continuous work; the electric control Z-axis moving mechanism 21 is fixedly connected with a liquid inlet tube 55 and a liquid outlet tube 56 in sequence; one end of the liquid inlet tube 55 is connected to the infusion tube 51; the other end of the liquid inlet tube 55 is connected to the outlet end of the cooling liquid circulation conveying device; one end of the liquid outlet tube 56 is connected to the liquid collecting ring pipe 5 4; the other end of the liquid outlet pipe 56 is connected to the inlet end of the external coolant circulation and conveying device; the external coolant circulation and conveying device is equipped with a filter assembly; the liquid inlet pipe 55 and the liquid outlet pipe 56 are both made of elastic material, and the X-axis direction electric control slider on the electric control X-axis moving mechanism 22 drives the laser cutting machine 3 and the conical skeleton table 4 and pulls the liquid inlet pipe 55 and the liquid outlet pipe 56 to move in the left and right directions. The liquid inlet pipe 55 and the liquid outlet pipe 56 made of elastic material can remain in a non-drooping state, thereby preventing the liquid inlet pipe 55 and the liquid outlet pipe 56 from drooping downward onto the sawtooth conveyor machine tool 1 and affecting the transportation of the workpiece.

[0031] like Figure 3-Figure 5 As shown, a hollow opening structure 601 is opened on the filter 6; the conical fixed platform 61 is rotatably connected to the conical skeleton platform 4; the first spur gear 62 is fixedly connected to the conical fixed platform 61; a driving motor 63 is installed on the laser cutting machine 3; the output shaft of the driving motor 63 is fixedly connected to the second spur gear 64; the second spur gear 64 is meshed with the first spur gear 62; a fixing frame 65 is fixedly connected to the laser cutting machine 3; a shading plate 66 is fixedly connected to the fixing frame 65; the shading plate 66 initially blocks the hollow opening structure 601 of the filter 6.

[0032] The conventional working steps of a multi-axis machining center with a protective function of 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 status of the laser cutting gun head 31 more carefully in a short time, the staff first wears goggles, and then controls the driving motor 63 to drive the second spur gear 64 to rotate, and the second spur gear 64 engages with the first spur gear 62 to drive the conical fixed platform 61 and the filter 6 to rotate, so that the hollow mouth structure 601 of the filter 6 rotates away from the light shielding plate 66 and moves to align with the position of the staff. At this time, the staff can see through the transparent observation piece 41 corresponding to the hollow mouth structure 601 of the filter 6, and observe the working status of the laser cutting gun head 31 in a clearer observation state.

[0036] Example 2

[0037] On the basis of Example 1, Figure 1-Figure 10 As shown, a plug 71 is inserted into any of the liquid spray heads 53 on the diverter ring tube 52 of this embodiment that is not aligned with the shading plate 66; two electric push rods 72 are installed on the conical skeleton platform 4; and the telescopic ends of the two electric push rods 72 are fixedly connected to the plug 71 together.

[0038] When the laser cutting machine 3 is in normal working state, the telescopic ends of the two electric push rods 72 jointly push the plug 71 upward from the inside of the spray head 53, so that the plug 71 will not block the outlet end of the spray head 53, so that all the spray heads 53 can spray the water flow protection layer to the corresponding transparent observation piece 41 respectively.

[0039] When the staff adjusts the hollow opening structure 601 of the filter 6 to be aligned with the spray head 53 corresponding to the plug 71, the observer also needs to stand facing the plug 71 for observation. The telescopic ends of the two electric push rods 72 jointly pull the plug 71 back into the spray head 53, so that the plug 71 blocks the outlet end of the spray head 53. At this time, the coolant flowing through the diversion ring tube 52 will not be sprayed out from the spray head 53, so that the surface of the transparent observation piece 41 corresponding to the spray head 53 no longer has a water flow protection layer, so that when the staff observes the inside of the transparent observation piece 41 through the hollow opening structure 601 of the filter 6, the surface of the transparent observation piece 41 is no longer blocked by the water flow protection layer, thereby improving the observability of directional observation in a short time.

[0040] Example 3

[0041] On the basis of Example 2, Figure 1-Figure 11 As shown, in this embodiment, a nozzle 8 is fixedly connected to the conical skeleton platform 4; a fan 81 is installed on the laser cutting machine 3; an air supply pipe 82 is commonly connected between the air outlet of the fan 81 and the air inlet of the nozzle 8; the nozzle 8 is located below the liquid spray head 53 corresponding to the plug 71, and the air outlet of the nozzle head 8 is aligned with the transparent observation piece 41 corresponding to the liquid spray head 53.

[0042] When the staff adjusts the hollow opening structure 601 of the filter 6 to be aligned with the spray head 53 corresponding to the plug 71, the electric push rod 72 inserts the plug 71 into the spray head 53, so that the spray head 53 stops spraying coolant to the transparent observation piece 41 aligned with the hollow opening structure 601 of the filter 6, and at the same time, the fan 81 continuously conveys airflow to the spray head 8 through the air supply pipe 82, so that the airflow output from the spray head 8 replaces the coolant and covers the surface of the transparent observation piece 41 from top to bottom, forming an airflow protection layer. Since the observability of the airflow protection layer is much greater than that of the water flow protection layer, the airflow protection layer can provide an unobstructed observation protection layer on the surface of the transparent observation piece 41 to prevent splashing of high-temperature waste residue and smoke, thereby ensuring the observability of directional observation in a short time.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-axis machining machine with a protective function, comprising: a sawtooth conveyor machine (1); a beam frame (2) fixedly connected to the sawtooth conveyor machine (1); a multi-axis moving unit installed on the 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 also includes a conical frame platform (4); the conical frame platform (4) surrounding the outside of the laser cutting gun head (31) is fixedly connected to the laser cutting machine (3); a plurality of transparent observation plates (41) are arranged at equal intervals around the conical frame 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 frame platform (4); the shunt ring tube (52) is connected to the infusion tube (51); The flow distribution ring tube (52) is connected to a liquid spray head (53) corresponding to the number and position of the transparent observation plates (41); a liquid collecting ring tube (54) is fixedly connected to the bottom of the conical frame platform (4), and the liquid collecting ring tube (54) is a C-shaped tubular structure with an opening facing upward; a conical fixed platform (61) is provided on the conical frame platform (4); a circle of filters (6) is fixedly connected to the conical fixed platform (61), and the filters (6) surround all the transparent observation plates (41).

2. A multi-axis machining center with a protective function according to claim 1, characterized in that: The infusion tube (51) surrounds the outer surface of the laser cutting gun head (31) of the laser cutting machine (3).

3. The multi-axis machining center with protection function according to claim 1, characterized in that: A liquid inlet pipe (55) and a liquid outlet pipe (56) are fixedly connected to the electrically controlled Z-axis moving mechanism (21) in sequence; the liquid inlet pipe (55) is connected to the liquid infusion pipe (51); the liquid outlet pipe (56) is connected to the liquid collecting ring pipe (54); and both the liquid inlet pipe (55) and the liquid outlet pipe (56) are made of elastic telescopic tube material.

4. The multi-axis machining center with protection function according to claim 1, characterized in that: The liquid spray head (53) is designed as a laterally elongated flat nozzle structure.

5. A multi-axis machining center with a protective function according to any one of claims 1 to 4, characterized in that: A hollow opening structure (601) is provided on the optical filter (6).

6. The multi-axis machining center with protection function according to claim 5, characterized in that: The conical fixing platform (61) is rotatably connected to the conical skeleton platform (4); a first spur 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 spur gear (64) is fixedly connected to the output shaft of the driving motor (63); and the second spur gear (64) is meshed with the first spur gear (62).

7. The multi-axis machining center with protection function according to claim 6, characterized in that: A fixing frame (65) is fixedly connected to the laser cutting machine (3); and a light shielding plate (66) of a hollow opening structure (601) that shields the optical filter (6) is fixedly connected to the fixing frame (65).

8. The multi-axis machining center with protection function according to claim 7, characterized in that: A plug (71) is inserted into any liquid spray head (53) on the flow dividing ring tube (52) that is not aligned with the light shielding plate (66); an electric push rod (72) is installed on the conical skeleton platform (4); and the telescopic end of the electric push rod (72) is fixedly connected to the plug (71).

9. The multi-axis machining center with protection function according to claim 8, characterized in that: An air jet head (8) is fixedly connected inside the conical frame platform (4); a fan (81) is installed on the laser cutting machine (3); and an air delivery pipe (82) is connected between the air outlet of the fan (81) and the air inlet of the air jet head (8).

10. The multi-axis machining center with protection function according to claim 9, characterized in that: The spray head (8) is located below the liquid spray head (53) corresponding to the plug (71).

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