Aluminum profile laser cutting machine

Abstract

The utility model relates to an aluminum profile laser cutting machine which comprises a workbench internally provided with a cavity, a two-way lead screw rotationally installed in the cavity, two moving blocks connected to the two-way lead screw in a threaded mode, a through groove formed in the position, over the two-way lead screw, of the surface of the workbench, two clamping plates are arranged in the through groove in a sliding mode, and a pressing mechanism is installed on the clamping plates and comprises a fixing base. The fixing seats located on the clamping faces of the clamping plates are vertically connected with the clamping rods in a sliding mode, the lower ends of the clamping rods are provided with pressing plates below the fixing seats, the clamping rods are connected with first springs in a sleeved mode between the pressing plates and the fixing seats, the upper ends of the clamping rods are hinged to L-shaped limiting plates, and the other ends of the limiting plates are connected to the other fixing seats through second springs. The device further comprises an inverted-U-shaped supporting frame fixed to the upper end of the clamping plate, a clamping motor is installed on the side face of the supporting frame, and an oval disc capable of being in lap joint with the limiting plate is installed on an output shaft of the clamping motor. According to the plate cutting device, stable clamping of plates can be achieved, and smoke generated during cutting can also be absorbed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, and particularly relates to a laser cutting machine for aluminum profiles. Background Technique

[0002] Laser cutting is to output a controlled repetitive high-frequency pulsed laser beam by a laser. This pulsed laser beam is focused on the surface of the processed object through a focusing lens group to form a series of fine and high-energy-density light spots. Each high-energy laser pulse instantly splashes out an extremely tiny hole on the surface of the object. Under computer control, the laser cutting head and the material to be cut move relative to each other according to a pre-drawn pattern, so as to complete the laser cutting of parts. Laser processing is widely used in the precision cutting of products such as metal sheets, non-metal sheets, and wire materials due to its advantages of high speed, good cutting end face effect, non-contact processing method with the material, and unrestricted cutting patterns.

[0003] During the process of laser cutting aluminum profiles, a large amount of smoke and dust will be generated, and it is necessary to timely process the smoke and dust to avoid pollution to the surface of the laser processed product, improve the quality and yield of laser processing. At present, the conventional method is to set up a dust suction device, and use a dust suction pipe to adsorb the smoke and dust during cutting, but there is a problem that the adsorption is not thorough enough and cannot follow the cutting laser head for suction.

[0004] In addition, when the existing laser cutting machine positions the profile, it generally clamps and positions the profile in one direction by means of a clamping plate, and its positioning accuracy is not high, and the stability of the profile cannot be guaranteed. Once the profile is displaced during the processing, it will cause the position of the final sheet cutting to be inaccurate, thereby reducing the yield of aluminum profile processing. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a laser cutting machine for aluminum profiles, which can absorb the smoke and dust during cutting through the cooperation of a vacuum cleaner and a water curtain, and at the same time use a clamping plate and a pressing mechanism to realize the stable clamping of the sheet in two directions, improve the clamping stability, ensure the accuracy during processing, and improve the yield.

[0006] The utility model is realized by the following technical solutions:

[0007] Provided is an aluminum profile laser cutting machine, comprising a workbench, a mounting frame located above the workbench and movable along the Y-axis direction is installed between both sides in the length direction of the workbench, a laser cutting head movable along the Z-axis direction is installed on the mounting frame through a Z-axis linear module, a cavity is arranged in the workbench, and a bidirectional lead screw is rotatably installed in the cavity, a driving motor is installed at one end of the bidirectional lead screw, two symmetrically arranged moving blocks are threadedly connected on the bidirectional lead screw, a through groove is provided on the surface of the workbench just above the bidirectional lead screw, and two clamping plates correspondingly connected to the moving blocks through support rods are slidably arranged in the through groove, and each clamping plate has A clamping mechanism is installed, and the clamping mechanism includes a fixing seat symmetrically arranged on the two vertical surfaces of the clamping plate, the fixing seat located on the clamping surface of the clamping plate is vertically slidably connected with a clamping rod that passes through the fixing seat, the lower end of the clamping rod is provided with a pressure plate below the fixing seat, the clamping rod is sleeved with a first spring between the pressure plate and the fixing seat, the upper end of the clamping rod is hinged with an L-shaped limit plate, the other end of the limit plate is connected to another fixing seat through a second spring, and also includes a support frame fixed to the upper end of the clamping plate and in an inverted U shape, a clamping motor is installed on the side of the support frame, and an elliptical disk that can overlap with the limit plate is installed on the output shaft of the clamping motor.

[0008] Furthermore, a sleeve that can be controlled to rise and fall is movably sleeved on the outer shell of the Z-axis linear module, and the lower end of the sleeve is connected to a smoke hood that can be covered on the outside of the cutting head, and the smoke hood is connected to a vacuum cleaner through a retractable dust suction tube; a rack is vertically arranged on the outer shell of the Z-axis linear module, and a gear box is installed on the inner wall of the sleeve facing the rack, a worm and worm wheel transmission mechanism is rotatably installed in the gear box, a driving gear meshing with the rack is installed on the rotating shaft of the worm wheel, and one end of the worm is connected to a lifting motor.

[0009] The worm gear transmission mechanism is driven by the lifting motor, and the rotation of the worm drives the worm wheel. The rotation of the worm wheel causes its rotating shaft to drive the gear to rotate. Then, the gear and the rack can cooperate to realize the up and down movement of the sleeve and the smoke hood under the sleeve along the rack, thereby realizing the follow-up cooperation with the cutting head. The worm gear transmission mechanism has a self-locking function, which can facilitate the fixing of the position of the smoke hood after it is moved into place.

[0010] Furthermore, the inner wall of the smoke hood is connected to an annular tube via a bracket, nozzles capable of spraying water curtains are arranged at intervals on the bottom surface of the annular tube, and a water supply pipe is connected to the annular tube via a corrugated tube.

[0011] An annular tube is arranged on the inner wall of the smoke hood, which is connected to the water supply pipe through a retractable bellows. A plurality of nozzles on the bottom of the annular tube can cooperate to form an annular water curtain under the annular tube, which can be used to absorb the smoke and dust in the smoke hood and prevent the smoke and dust from escaping as much as possible.

[0012] Further, the bottom surface of the inner cavity of the workbench is set as an inclined plane, and a circulation pump is arranged at the low end of the inclined plane. The water outlet pipe of the circulation pump is connected to the water supply pipe.

[0013] Setting the bottom surface of the inner cavity of the workbench as an inclined plane facilitates the collection of water entering the inner cavity, and the circulation pump can pump the collected and filtered water into the water supply pipe.

[0014] Further, a filter rack located above the circulation pump is movably inserted into the cavity of the workbench. A filter net is installed on the filter rack, and a slot for the filter rack to enter and exit is opened on one side wall of the workbench.

[0015] By setting the filter net, the water flowing into the cavity can be filtered and pumped out by the circulation pump, realizing the recycling of the water curtain water. The slot facilitates the removal of the filter rack for replacement and cleaning work.

[0016] The beneficial effects of the present utility model:

[0017] The present utility model transversely clamps and fixes the plate by two clamping plates, and cooperates with the pressing mechanism on the clamping plates to vertically clamp and fix the plate respectively, so that the sheet material will not move during the cutting process, and the cutting is more accurate. At the same time, a liftable smoke collecting hood that can follow the cutting head is configured. Most of the cutting fumes are absorbed by the water curtain formed around the cutting head, and the remaining fumes are adsorbed by the dust suction pipe in the smoke collecting hood, so that the adsorption of cutting dust can be realized, and environmental protection processing and cutting can be achieved. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model.

[0019] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0020] Figure 3 is the internal structural schematic diagram of the gearbox in the present utility model.

[0021] Figure 4 is the bottom view of the annular pipe in the present utility model.

[0022] Figure 5 is the top view of the workbench in the present utility model.

[0023] As shown in the figure:

[0024] 1. Workbench, 2. Mounting frame, 3. Z-axis linear module, 4. Cutting head, 5. Cavity, 6. Bi-directional lead screw, 7. Driving motor, 8. Moving block, 9. Support rod, 10. Clamping plate, 11. Bellows, 12. Water supply pipe, 13. Circulation pump, 14. Inclined plane, 15. Filter screen, 16. Dust suction pipe, 17. Support frame, 18. Elliptical disc, 19. Limit plate, 20. Clamping rod, 21. Fixed seat, 22. Pressing plate, 23. First spring, 24. Gear box, 25. Worm, 26. Worm gear, 27. Driving gear, 28. Rack, 29. Annular pipe, 30. Nozzle, 31. Sleeve, 32. Smoke collecting hood, 33. Through slot, 34. Second spring. Detailed implementation

[0025] To clearly illustrate the technical features of this solution, the following is an elaboration of this solution through specific implementation.

[0026] An aluminum profile laser cutting machine includes a workbench 1. Between the two sides in the length direction of the workbench 1, there is a mounting frame 2 located above the workbench 1 and movable along the Y-axis direction. On the mounting frame 2, there is a laser cutting head 4 installed through a Z-axis linear module 3 and movable along the Z-axis direction. Inside the workbench 1, there is a cavity 5, and a bi-directional lead screw 6 is rotatably installed in the cavity 5. One end of the bi-directional lead screw 6 is installed with a driving motor 7. Two symmetrically arranged moving blocks 8 are threadedly connected to the bi-directional lead screw 6. On the surface of the workbench 1, there is a through slot 33 directly above the bi-directional lead screw 6, and two clamping plates 10 corresponding to the moving blocks 8 and connected through support rods 9 are slidably arranged in the through slot 33. A pressing mechanism is installed on each clamping plate 10. The pressing mechanism includes fixed seats 21 symmetrically arranged on two vertical surfaces of the clamping plate 10. On the clamping surface of the clamping plate 10, the fixed seat 21 is vertically slidably connected with a clamping rod 20 passing through the fixed seat 21. At the lower end of the clamping rod 20, there is a pressing plate 22 below the fixed seat 21. A first spring 23 is sleeved and connected between the clamping rod 20 and between the pressing plate 22 and the fixed seat 21. The upper end of the clamping rod 20 is hinged with an L-shaped limit plate 19, and the other end of the limit plate 19 is connected to another fixed seat 21 through a second spring 34. It also includes a support frame 17 fixed to the upper end of the clamping plate 10 and in an inverted U shape. A clamping motor is installed on the side of the support frame 17, and an elliptical disc 18 that can overlap with the limit plate 19 is installed on the output shaft of the clamping motor.

[0027] A sleeve 31 that can control lifting is movably sleeved on the outer shell of the Z-axis linear module 3. The lower end of the sleeve 31 is connected with a smoke collecting hood 32 that can cover the outside of the cutting head 4. The smoke collecting hood 32 is connected with a vacuum cleaner through a telescopic suction pipe 16. A rack 28 is vertically arranged on the outer shell of the Z-axis linear module 3. A gear box 24 is installed on the inner wall of the sleeve 32 opposite to the rack 28. A worm and worm gear transmission mechanism is rotatably installed in the gear box 24. A driving gear 27 that meshes with the rack 28 is installed on the rotating shaft 28 of the worm gear 26. One end of the worm 25 is connected with a lifting motor.

[0028] An annular pipe 29 is connected to the inner wall of the smoke collecting hood 33 through a bracket. Nozzles 30 that can spray water curtains are arranged at intervals on the bottom surface of the annular pipe 29. The annular pipe 29 is connected with a water supply pipe 12 through a corrugated pipe 11.

[0029] The bottom surface of the inner cavity of the workbench 1 is set as an inclined surface 14, and a circulating pump 13 is arranged at the low end of the inclined surface 14. The water outlet pipe of the circulating pump 13 is connected with the water supply pipe 12. A filter rack located above the circulating pump 13 is movably inserted into the cavity 3 of the workbench 1. A filter screen 15 is installed on the filter rack. A slot for the filter rack to enter and exit is opened on one side wall of the workbench 1.

[0030] When the utility model is in use, the aluminum profile to be cut is placed on the workbench 1. The position of the cutting head 3 above the aluminum profile is adjusted. The driving motor 7 is started. The driving motor 7 drives the bidirectional lead screw 6 to rotate. The two clamping plates 10 on the bidirectional lead screw 6 move towards each other to transversely clamp the aluminum profile. At the same time, the clamping motor is started to drive the elliptical disc 18 to rotate. The radius of the elliptical disc 18 changes, so that the limiting plate 19 will move along with the elliptical disc 18. Initially, the elliptical disc 18 is upright. At this time, the limiting plate 19 is at the highest position. The second spring 34 at one end of the limiting plate 19 is stretched, and the other end of the limiting plate 19 pulls the clamping rod 20 upward to compress the first spring 23. By controlling the clamping motor to drive the elliptical disc 18 to rotate, under the elastic action of the first spring 23 and the second spring 34, the pressing plate 22 at the lower end of the clamping rod 20 presses and fixes the aluminum profile, realizing the longitudinal clamping and fixing of the aluminum profile, and can realize the stable clamping of the aluminum profile to ensure the stability during cutting.

[0031] Start the lifting motor. The lifting motor drives the worm 25 to drive the worm wheel 26 to rotate. The rotating shaft 28 of the worm wheel 26 drives the driving gear 27 to rotate on the rack 28. Furthermore, by using the meshing effect of the rack 28 and the driving gear 27, the sleeve 31 and the lower smoke hood 32 can be lowered on the Z-axis linear module 3 and positioned above the aluminum profile to cover the cutting head 4. Start the cutting head 4. The cutting head 4 can cut the aluminum profile by moving the mounting frame 2. During the cutting process, the circulation pump 13 and the vacuum cleaner are turned on. The water in the water supply pipe 12 enters the annular pipe 29 through the corrugated pipe 11 and forms a water curtain surrounding the cutting head 4 through the nozzle 30, which can absorb the dust generated during the cutting process. The falling water curtain will enter the cavity 5 through the through groove 33 on the workbench, and after being filtered by the filter screen 15, it is collected in the cavity 5 of the workbench 1, and then converges to the low end through the inclined surface 14 and is continuously pumped into the water supply pipe 12 and the corrugated pipe 11 by the circulation pump 13. The dust that has not been completely absorbed is further absorbed by the vacuum cleaner and the suction pipe 16 to achieve the purpose of thoroughly exhausting smoke during the cutting process.

[0032] Certainly, the above description is not limited to the above examples. The technical features not described in this utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and the drawings are only used to illustrate the technical solutions of this utility model and are not intended to limit this utility model. The preferred embodiments are described in detail with reference to this utility model. Those of ordinary skill in the art should understand that any changes, modifications, additions, or substitutions made by those of ordinary skill in this technical field within the scope of the essence of this utility model do not depart from the purpose of this utility model and should also fall within the scope of the protection of the claims of this utility model.

Claims

1. An aluminum profile laser cutting machine, comprising a workbench. An installation frame located above the workbench and movable along the Y-axis direction is installed between two sides in the length direction of the workbench. A laser cutting head movable along the Z-axis direction is installed on the installation frame through a Z-axis linear module, and it is characterized in that: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

2. The aluminum profile laser cutting machine according to claim 1, characterized in that: A sleeve that can be controlled to rise and fall is movably sleeved on the outer shell of the Z-axis linear module, and a smoke hood that can be covered on the outside of the cutting head is connected to the lower end of the sleeve, and a vacuum cleaner is connected to the smoke hood through a retractable dust suction tube; a rack is vertically arranged on the outer shell of the Z-axis linear module, and a gear box is installed on the inner wall of the sleeve facing the rack, a worm and worm wheel transmission mechanism is rotatably installed in the gear box, a driving gear meshing with the rack is installed on the rotating shaft of the worm wheel, and a lifting motor is connected to one end of the worm.

3. The aluminum profile laser cutting machine according to claim 2, wherein: The inner wall of the smoke collecting hood is connected with an annular tube through a bracket, nozzles capable of spraying water curtains are arranged at intervals on the bottom surface of the annular tube, and a water supply pipe is connected to the annular tube through a corrugated tube.

4. The aluminum profile laser cutting machine according to claim 3, characterized in that: The bottom surface of the inner cavity of the workbench is arranged as an inclined surface, and a circulation pump is arranged at the lower end of the inclined surface, and a water outlet pipe of the circulation pump is connected with a water supply pipe.

5. The aluminum profile laser cutting machine according to claim 4, characterized in that: A filter rack located above a circulation pump is movably inserted in the cavity of the workbench, a filter net is installed on the filter rack, and a slot for the filter rack to enter and exit is opened on one side wall of the workbench.

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