A metal welding and cutting device

Abstract

The present invention discloses a metal welding and cutting device. The present invention relates to the technical field of metal welding and thermal cutting, and includes a machine base. A guide rail is fixedly connected to the side wall of the machine base. A control panel is installed on the side wall of the machine base, and a laser is installed on the top surface of the machine base. A turntable is rotatably connected to the side wall of the laser. The advantages of the present invention are as follows: It can automatically adjust the position of the laser focus and the material, avoiding affecting the quality of metal welding and cutting. Without the need for program control, it can adapt to the processing of materials with various shapes, greatly reducing the cost of material processing. At the same time, the use of control elements is also significantly reduced, not only avoiding the difficulty of wiring, but also expanding the application range of the device. Moreover, metal welding and cutting and the fixation of the metal can be carried out simultaneously without step-by-step operation, avoiding the potential risk of operation errors, saving operation time at the same time, and quickly determining the lowest point on the metal surface, so as to quickly determine the focus of the laser beam.

Description

Technical Field

[0001] The present invention relates to the technical field of metal welding and thermal cutting, and specifically provides a metal welding and cutting device. Background Art

[0002] Thermal cutting refers to a method of melting or burning materials using concentrated heat energy and separating them. Thermal cutting is widely used in the industrial sector for cutting metal materials and processing components, including metal laser cutting, which melts and vaporizes materials through a high-energy laser beam and uses airflow to blow away the molten and eroded substances to achieve precise cutting of materials. In metal welding, laser welding uses a laser beam to melt metal materials, form a molten pool, and connect them together.

[0003] Both are completed through a laser beam, so the focal position of the laser beam needs to be considered. Among them, the focal position of laser welding is crucial for welding quality and needs to be precisely adjusted to ensure the quality and appearance of the weld. The focal position of laser cutting affects the smoothness of the cutting surface and the width of the cut.

[0004] After retrieval, Chinese Patent No. CN113714808B discloses a metal welding and cutting device. Although it can be randomly converted as needed, has a low cost, and is easy to operate, thus improving work efficiency, it cannot automatically adjust the position of the laser focus and the material. When the material surface is uneven or has a fluctuating shape, the laser focus cannot effectively heat the material, thus affecting the quality of metal welding and cutting. If the height of the lifting table, the focus of the collimating lens, or the laser cutting head is controlled by a program, it cannot adapt to the processing of various materials. If one shape corresponds to one program control, the processing cost of the material will be greatly increased, and at the same time, the use of control components will also be greatly increased, bringing problems such as difficult wire arrangement and chip use. At the same time, the applicable range of the device processing is limited, and metal welding and cutting cannot be carried out simultaneously with the fixation of the metal, and it needs to be operated step by step, which is prone to operation hazards, cannot save operation time, and the lowest point on the metal surface cannot be quickly determined, so the focal point of the laser beam cannot be quickly determined. Summary of the Invention

[0005] The purpose of the present invention is to provide a metal welding and cutting device.

[0006] To solve the problems raised in the above background art, the present invention provides the following technical solutions: A metal welding and cutting device includes a machine base. A guide rail is fixedly connected to the side wall of the machine base. A control panel is installed on the side wall of the machine base, and a laser is installed on the top surface of the machine base. A turntable is rotatably connected to the side wall of the laser. A collimating lens and a laser cutting head are installed at both ends of the turntable. A pneumatic push rod is fixedly connected to the bottom wall of the machine base. The output end of the pneumatic push rod is fixedly connected to a lifting platform. Sliding seats are slidably connected to both sides of the lifting platform. A sliding plate is slidably sleeved on the top surface of the sliding seat. A first support spring is fixedly connected between the bottom surface of the sliding plate and the sliding seat, and a workbench is fixedly connected to the top surface of the sliding plate. A hydraulic push rod is fixedly connected between the side wall of the sliding seat and the side wall of the lifting platform. A limiting frame is fixedly connected to the top surface of the workbench. A sliding sleeve is slidably sleeved in the limiting frame. There are two sliding sleeves and two limiting frames, and the two sliding sleeves and the two limiting frames are symmetrically arranged about the bisecting plane of the workbench. A fitting block is slidably sleeved in the sliding sleeve. A chute is opened at one end of the fitting block. A connecting block is fixedly connected to the other end of the fitting block. Embedding grooves are opened on both the connecting block and the fitting block. An embedding rod is fitted and sleeved in the embedding groove;

[0007] A fixing frame is fixedly connected to the top surface of the lifting platform. A guide groove is opened on the side wall of the fixing frame. A clamping groove is opened on the side wall of the guide groove, and a guide plate is slidably sleeved in the guide groove. A second support spring is fixedly connected between the bottom surface of the guide plate and the bottom surface of the guide groove, and a height limiting rod is fixedly connected to the side wall of the guide plate. An open groove is opened on the side wall of the height limiting rod, and a pressing rod is slidably connected to the top surface of the height limiting rod. A first bolt is meshingly sleeved on the top surface of the pressing rod, and a fitting block is fixedly connected to the end of the pressing rod. One end of a rotating shaft is fixedly sleeved at the top end of the fitting block, and the other end of the rotating shaft is rotatably sleeved with a sprocket. The height limiting rod and the fixing frame are fixed by a second bolt.

[0008] As a further solution of the present invention: There are multiple fitting blocks, and the connecting blocks and chutes of adjacent fitting blocks are rotatably sleeved. The embedding rod fixes the fitting block and the connecting block.

[0009] As a further solution of the present invention: The lifting platform is slidably sleeved with the guide rail. There are two hydraulic push rods, and the two hydraulic push rods are symmetrically arranged about the bisecting plane of the lifting platform.

[0010] As a further solution of the present invention: The height limiting rod is in an L shape. The sprocket is meshingly connected with the fitting block. The first bolt fixes the height limiting rod and the pressing rod.

[0011] As a further solution of the present invention: The fitting block is in an embedded connection with the end of the height limiting rod, and the outer surface of the fitting block is slidably connected with the fitting block. The pressing rod passes through the limiting frame.

[0012] As a further solution of the present invention: an inner cavity is provided in the side wall of the sliding sleeve, a piston is slidably sleeved in the inner cavity, a positioning rod is fixedly connected to the end face of the piston, a channel is provided on the end face of the inner cavity, the end of the channel is connected to one end of a connecting pipe, the other end of the connecting pipe is connected to the input end of the hydraulic push rod, a groove is provided in the side wall of the guide plate, a block is hinged between the side walls of the groove, a return spring is fixedly connected between the block and the side wall of the groove, a shift rod is slidably sleeved on the end face of the guide plate, one end of the shift rod extends into the groove, the other end of the shift rod is fixedly connected to a slider, and a push rod is fixedly connected to the side wall of the slider.

[0013] As a further solution of the present invention: the positioning rod extends outside the inner cavity, and the positioning rod is in close contact with the inner surface of the limiting frame, and two connecting pipes are provided, and the two connecting pipes correspond to the two sliding sleeves one by one.

[0014] As a further solution of the present invention: the block is engaged with the slot, the groove limits the counterclockwise rotation of the block, the push rod is slidably sleeved with the open slot, the corner of the height limiting rod is located in front of the laser cutting head, and the height limiting rod and the fitting block are located on both sides of the laser cutting head.

[0015] Adopting the above technical solution: Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The present invention always presses down the bonding block through the sprocket. When the crest of the curve composed of the bonding block moves to the sprocket, the bonding block, the metal and the workbench fall to the maximum distance. When the trough of the curve composed of the bonding block moves to the sprocket, the workbench rises under the rebound of the first supporting spring. In summary, the curve composed of the bonding block and the metal fluctuate up and down while translating, and the height of the metal cutting surface remains unchanged when it moves to the sprocket, so that the laser focal length can always be located at a suitable position of the metal, so as to achieve the purpose of automatically adjusting the laser focus and the material position, avoiding affecting the quality of metal welding and cutting, and can adapt to the processing of materials of various shapes without program control, greatly reducing the cost of material processing. At the same time, the use of control components is also greatly reduced, which not only avoids the difficulty of wiring, but also expands the scope of application of the device.

[0017] 2. By starting the hydraulic push rod, the liquid in the hydraulic push rod flows back, and a part of it enters the connecting pipe, causing the hydraulic push rod to contract, the sliding seat and the workbench to translate, and then the metal to be translated, so that the metal is cut by the laser beam emitted by the laser cutting head. The liquid entering the connecting pipe will flow into the channel and enter the inner cavity through the channel, causing the piston in the inner cavity to be pressed and move outward. As a result, the positioning rod on the piston presses the inner surface of the limit frame, causing the positioning rod to frictionally fasten the sliding sleeve, and then making the sliding sleeve and the limit frame relatively fixed. The fixation of the limit frame will fix the fitting block, and the fitting block is closely attached to the metal surface, ensuring that the metal is fully fixed, enabling the metal welding and cutting and the fixation of the metal to be carried out simultaneously without the need for step-by-step operations, avoiding the hidden danger of operation errors, and saving operation time at the same time.

[0018] The curve formed by multiple fitting blocks of the present invention is the curve of the metal surface. At this time, press the insertion rod on the fitting block, so that the insertion rod is inserted into the insertion groove and is engaged and sleeved with the connection block, making the connection block fixed to the adjacent fitting block, and fixing the curve formed by multiple fitting blocks. Then reverse the first bolt so that the first bolt disengages from the height-limiting rod, thus releasing the fixation of the pressing rod. Then move the sprocket so that the sprocket moves along the fitting block. During this process, when the curve formed by the fitting blocks undulates, the sprocket also undulates accordingly, and then the pressing rod on the sprocket undulates. When the pressing rod descends, the pressing rod will press down the height-limiting rod, causing the height-limiting rod to drive the guide plate to descend. At this time, the clamping block on the guide plate is squeezed by the inner side wall of the fixed frame, causing the clamping block to contract into the groove, enabling the guide plate to descend smoothly and squeeze the second support spring. When the pressing rod ascends, the pressing rod disengages from the height-limiting rod. At this time, the clamping block is re-engaged with the clamping groove under the resilience of the return spring, preventing the height-limiting rod and the guide plate from ascending. According to the above principle, the final positions of the height-limiting rod and the guide plate correspond to the lowest point of the curve formed by the fitting blocks. At this time, determine the focal point of the laser cutting head or the collimating lens according to the height of the height-limiting rod, achieving the purpose of quickly determining the lowest point of the metal surface, and thus quickly determining the focal point of the laser beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of a metal welding and cutting device of the present invention;

[0020] Figure 2 is the structural schematic diagram of the hydraulic push rod in the embodiment of the present invention;

[0021] Figure 3 is the structural schematic diagram of the fitting block in the embodiment of the present invention;

[0022] Figure 4 is the semi-sectional structural schematic diagram of the fitting block in the embodiment of the present invention;

[0023] Figure 5 is the semi-sectional structural schematic diagram of the guide plate in the embodiment of the present invention;

[0024] Figure 6 In the embodiments of the present invention Figure 5 Enlarged view of part A structure in

[0025] Figure 7 Schematic diagram of the slider structure in the embodiments of the present invention

[0026] Figure 8 Side view of the slide base structure in the embodiments of the present invention

[0027] Figure 9 Front sectional view of the sliding sleeve structure in the embodiments of the present invention

[0028] In the figure: 1, machine base; 2, guide rail; 3, control panel; 4, laser; 5, turntable; 6, collimating lens; 7, laser cutting head; 8, pneumatic push rod; 9, lifting table; 10, slide base; 11, slide plate; 12, first support spring; 13, workbench; 14, hydraulic push rod; 15, limit frame; 16, sliding sleeve; 17, fitting block; 18, chute; 19, connecting block; 20, embedding groove; 21, embedding rod; 22, inner cavity; 23, piston; 24, positioning rod; 25, channel; 26, connecting pipe; 27, fixed frame; 28, guide groove; 29, card slot; 30, guide plate; 31, second support spring; 32, groove; 33, clamping block; 34, return spring; 35, lever; 36, slider; 37, ejector rod; 38, height limiting rod; 39, open slot; 40, pressing rod; 41, first bolt; 42, fitting block; 43, rotating shaft; 44, sprocket; 45, second bolt. Specific embodiments

[0029] The following further describes the specific embodiments of the present invention with reference to the accompanying drawings. It should be noted here that the description of these embodiments is for helping to understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1, please refer to Figures 1-3 and Figures 5-7The present invention provides a technical solution: a metal welding and cutting device, the top surface of the lifting platform 9 is fixedly connected with a fixed frame 27, the side wall of the fixed frame 27 is provided with a guide groove 28, the side wall of the guide groove 28 is provided with a card groove 29, and a guide plate 30 is slidably sleeved in the guide groove 28, a second supporting spring 31 is fixedly connected between the bottom surface of the guide plate 30 and the bottom surface of the guide groove 28, and a limited height rod 38 is fixedly connected to the side wall of the guide plate 30, an open groove 39 is provided on the side wall of the limited height rod 38, and a pressure rod 40 is slidably connected to the top surface of the limited height rod 38, the top surface of the pressure rod 40 is meshed and sleeved with a first bolt 41, and the end of the pressure rod 40 is fixedly connected with a fitting block 42, the top end of the fitting block 42 is fixedly sleeved with one end of a rotating shaft 43, and the other end of the rotating shaft 43 is rotatably sleeved with a sprocket 44, and the limited height rod 38 is fixed to the fixed frame 27 by a second bolt 45.

[0031] See also Figure 3 and Figure 5 The height limiting rod 38 is arranged in an L shape, the sprocket 44 is meshedly connected with the fitting block 17, and the first bolt 41 fixes the height limiting rod 38 and the pressure rod 40.

[0032] See also Figure 2 , Figure 3 and Figure 5 The engaging block 42 is engaged with the end of the height limiting rod 38 , and the engaging block 42 is slidably connected with the outer surface of the fitting block 17 , and the pressing rod 40 passes through the limiting frame 15 .

[0033] Specifically, during the translation of the workbench 13, the sprocket 44 always presses down the bonding block 17. When the crest of the curve formed by the bonding block 17 moves to the sprocket 44, the bonding block 17, the metal and the workbench 13 fall the longest. When the trough of the curve formed by the bonding block 17 moves to the sprocket 44, the workbench 13 rises under the rebound of the first support spring 12. In summary, the curve formed by the bonding block 17 and the metal fluctuate up and down while translating, and when the metal cutting surface moves to the sprocket 44, the height remains unchanged, so that the laser focal length can always be located at the appropriate position of the metal, so as to achieve the purpose of automatically adjusting the laser focus and the material position, avoiding affecting the quality of metal welding and cutting, and can adapt to the processing of materials of various shapes without program control, greatly reducing the cost of material processing. At the same time, the use of control components is also greatly reduced, which not only avoids the difficulty of wiring, but also expands the scope of application of the device.

[0034] Example 2, please refer to Figures 1-4 and Figure 8, the present invention provides a technical solution: a metal welding and cutting device, including a machine base 1, a guide rail 2 is fixedly connected to the side wall of the machine base 1, a control panel 3 is installed on the side wall of the machine base 1, and a laser 4 is installed on the top surface of the machine base 1. A turntable 5 is rotatably connected to the side wall of the laser 4. Collimating lenses 6 and a laser cutting head 7 are installed at both ends of the turntable 5. A pneumatic push rod 8 is fixedly connected to the bottom wall of the machine base 1. A lifting platform 9 is fixedly connected to the output end of the pneumatic push rod 8. Slide seats 10 are slidably connected to both sides of the lifting platform 9. A slide plate 11 is slidably sleeved on the top surface of the slide seat 10. A first support spring 12 is fixedly connected between the bottom surface of the slide plate 11 and the slide seat 10. A workbench 13 is fixedly connected to the top surface of the slide plate 11. A hydraulic push rod 14 is fixedly connected between the side wall of the slide seat 10 and the side wall of the lifting platform 9. A limiting frame 15 is fixedly connected to the top surface of the workbench 13. Slide sleeves 16 are slidably sleeved in the limiting frame 15. There are two slide sleeves 16 and two limiting frames 15, and the two slide sleeves 16 and the two limiting frames 15 are symmetrically arranged with respect to the bisecting plane of the workbench 13. A fitting block 17 is slidably sleeved in the slide sleeve 16. A chute 18 is opened at one end of the fitting block 17. A connecting block 19 is fixedly connected to the other end of the fitting block 17. Embedding grooves 20 are opened on both the connecting block 19 and the fitting block 17. Embedding rods 21 are fitted and sleeved in the embedding grooves 20.

[0035] Please refer to Figure 3 and Figure 4 , there are multiple fitting blocks 17, and the connecting blocks 19 and the chutes 18 of adjacent fitting blocks 17 are rotatably sleeved. The embedding rods 21 fix the fitting blocks 17 and the connecting blocks 19.

[0036] Please refer to Figure 1 and Figure 2 , the lifting platform 9 is slidably sleeved with the guide rail 2. There are two hydraulic push rods 14, and the two hydraulic push rods 14 are symmetrically arranged with respect to the bisecting plane of the lifting platform 9.

[0037] Specifically, during the process of metal welding and cutting, the height-limiting rod 38 is fastened by the second bolt 45, and then the sprocket 44 is reset and pressed downwards, causing the sprocket 44 to push the fitting block 17, the metal, and the workbench 13 to descend. As a result, the workbench 13 compresses the first support spring 12 through the sliding plate 11 until the pressure rod 40 fits against the height-limiting rod 38 again. Then, the first bolt 41 is rotated to fix the pressure rod 40 to the height-limiting rod 38 again. Next, the hydraulic push rod 14 is started, causing the liquid in the hydraulic push rod 14 to flow back, and a part of it enters the connecting pipe 26. Consequently, the hydraulic push rod 14 contracts, causing the sliding seat 10 and the workbench 13 to translate, and further translating the metal, so that the metal is cut by the laser beam emitted by the laser cutting head 7. The liquid that enters the connecting pipe 26 will flow into the channel 25 and then enter the inner cavity 22 through the channel 25, causing the piston 23 in the inner cavity 22 to be pressed and move outwards. As a result, the positioning rod 24 on the piston 23 presses against the inner surface of the limiting frame 15, causing the positioning rod 24 to frictionally fasten the sliding sleeve 16. Furthermore, the sliding sleeve 16 is relatively fixed to the limiting frame 15. The fixation of the limiting frame 15 will fix the fitting block 17, and the fitting block 17 is in close contact with the metal surface, ensuring that the metal is fully fixed. This enables the simultaneous implementation of metal welding and cutting and metal fixation without the need for step-by-step operations, avoiding potential operation errors and saving operation time simultaneously.

[0038] Embodiment 3, please refer to Figures 5-7 and Figure 9 , the present invention provides a technical solution: a metal welding and cutting device. An inner cavity 22 is formed in the side wall of the sliding sleeve 16. A piston 23 is slidably sleeved in the inner cavity 22. A positioning rod 24 is fixedly connected to the end face of the piston 23. A channel 25 is formed in the end face of the inner cavity 22. One end of the channel 25 communicates with one end of a connecting pipe 26. The other end of the connecting pipe 26 is communicated with the input end of the hydraulic push rod 14. A groove 32 is formed in the side wall of the guide plate 30. A clamping block 33 is hinged between the side walls of the groove 32. A return spring 34 is fixedly connected between the clamping block 33 and the side wall of the groove 32. A dial rod 35 is slidably sleeved on the end face of the guide plate 30. One end of the dial rod 35 extends into the groove 32. A slider 36 is fixedly connected to the other end of the dial rod 35. A top rod 37 is fixedly connected to the side wall of the slider 36.

[0039] Please refer to Figure 2 and Figure 9 , the positioning rod 24 extends outside the inner cavity 22 and is in close contact with the inner surface of the limiting frame 15. There are two connecting pipes 26, and the two connecting pipes 26 correspond to the two sliding sleeves 16 one by one.

[0040] Please refer to Figure 1 、 Figure 3 and Figure 6, the clamping block 33 is clamped with the clamping groove 29, the groove 32 restricts the counterclockwise rotation of the clamping block 33, the ejector rod 37 is slidably sleeved with the open groove 39, the corner of the height limiting rod 38 is located in front of the laser cutting head 7, and the height limiting rod 38 and the fitting block 17 are located on both sides of the laser cutting head 7.

[0041] Specifically, during the metal cutting process, place the metal on the workbench 13 and make the laser cutting head 7 located on the cutting line. Then lower the sliding sleeve 16 so that the fitting block 17 on the sliding sleeve 16 is in close contact with the surface of the metal, and the curve formed by the multiple fitting blocks 17 is the curve of the metal surface. Then press the insertion rod 21 on the fitting block 17 so that the insertion rod 21 is inserted into the insertion groove 20 and is fitted and sleeved with the connection block 19, making the connection block 19 fixed to the adjacent fitting block 17, and the curve formed by the multiple fitting blocks 17 is fixed. Then reverse the first bolt 41 so that the first bolt 41 is disengaged from the height limiting rod 38, thus releasing the fixation of the pressing rod 40. Then move the sprocket 44 so that the sprocket 44 moves along the fitting block 17. During this process, when the curve formed by the fitting blocks 17 undulates, the sprocket 44 also undulates accordingly, and then the pressing rod 40 on the sprocket 44 undulates. When the pressing rod 40 descends, the pressing rod 40 will press down the height limiting rod 38, causing the height limiting rod 38 to drive the guide plate 30 to descend. At this time, the clamping block 33 on the guide plate 30 is squeezed by the inner side wall of the fixed frame 27, causing the clamping block 33 to contract into the groove 32, so that the guide plate 30 can descend smoothly and squeeze the second support spring 31. When the pressing rod 40 ascends, the pressing rod 40 is disengaged from the height limiting rod 38. At this time, the clamping block 33 is re-clamped with the clamping groove 29 under the resilience of the return spring 34, making the height limiting rod 38 and the guide plate 30 unable to ascend. According to the above principle, the final positions of the height limiting rod 38 and the guide plate 30 correspond to the lowest point of the curve formed by the fitting blocks 17. At this time, determine the focal point of the laser cutting head 7 or the collimating lens 6 according to the height of the height limiting rod 38, achieving the purpose of quickly determining the lowest point of the metal surface, and thus quickly determining the focal point of the laser beam.

[0042] Working principle and usage process of the present invention: When metal cutting is required, place the metal on the workbench 13 and position the laser cutting head 7 on the cutting line. Then, lower the sliding sleeve 16 so that the fitting block 17 on the sliding sleeve 16 is in close contact with the surface of the metal. The curve formed by the multiple fitting blocks 17 is the curve of the metal surface. At this time, press the insertion rod 21 on the fitting block 17 so that the insertion rod 21 inserts into the insertion groove 20 and is engaged and sleeved with the connection block 19, fixing the connection block 19 to the adjacent fitting block 17 and fixing the curve formed by the multiple fitting blocks 17. Then, reverse the first bolt 41 so that the first bolt 41 disengages from the height-limiting rod 38, thus releasing the fixation of the pressing rod 40. Next, move the sprocket 44 so that the sprocket 44 moves along the fitting block 17. During this process, when the curve formed by the fitting blocks 17 undulates, the sprocket 44 also undulates accordingly, causing the pressing rod 40 on the sprocket 44 to undulate. When the pressing rod 40 descends, the pressing rod 40 presses down the height-limiting rod 38, causing the height-limiting rod 38 to drive the guide plate 30 to descend. At this time, the clamping block 33 on the guide plate 30 is squeezed by the inner side wall of the fixed frame 27, causing the clamping block 33 to contract into the groove 32, allowing the guide plate 30 to descend smoothly and compress the second support spring 31. When the pressing rod 40 ascends, the pressing rod 40 disengages from the height-limiting rod 38. At this time, the clamping block 33 is re-engaged with the clamping groove 29 under the resilience of the return spring 34, preventing the height-limiting rod 38 and the guide plate 30 from ascending. According to the above principle, the final positions of the height-limiting rod 38 and the guide plate 30 correspond to the lowest point of the curve formed by the fitting blocks 17. At this time, determine the focal point of the laser cutting head 7 or the collimating lens 6 based on the height of the height-limiting rod 38, achieving the purpose of quickly determining the lowest point on the metal surface, and thus quickly determining the focal point of the laser beam;

[0043] After the above operation is completed, the height limiting rod 38 is tightened by the second bolt 45, and the sprocket 44 is reset and pressed down, so that the sprocket 44 pushes the fitting block 17, the metal and the workbench 13 to descend, so that the workbench 13 compresses the first support spring 12 through the slide plate 11 until the pressure rod 40 is again fitted with the height limiting rod 38, and the first bolt 41 is rotated to fix the pressure rod 40 with the height limiting rod 38 again, and then the hydraulic push rod 14 is started to make the liquid in the hydraulic push rod 14 flow back, and a part of it enters the connecting pipe 26, so that the hydraulic push rod 14 contracts, the slide seat 10 and the workbench 13 are translated, and then the metal is translated, so that the metal is shot by the laser cutting head 7. The laser beam cuts the metal, and the liquid in the connecting pipe 26 flows into the channel 25 and enters the inner cavity 22 through the channel 25, so that the piston 23 in the inner cavity 22 is pressed and moves outward, so that the positioning rod 24 on the piston 23 squeezes the inner surface of the limit frame 15, so that the positioning rod 24 rubs and tightens the sliding sleeve 16, and then the sliding sleeve 16 and the limit frame 15 are relatively fixed, and the fixing of the limit frame 15 will fix the fitting block 17, and the fitting block 17 is in close contact with the metal surface, so that the metal is fully fixed, so that the metal welding cutting and the metal fixing can be carried out at the same time, without step-by-step operation, avoiding the hidden danger of operation error, and saving operation time;

[0044] During the translation of the workbench 13, the sprocket 44 always presses down the bonding block 17. When the crest of the curve composed of the bonding block 17 moves to the sprocket 44, the bonding block 17, the metal and the workbench 13 fall the longest. When the trough of the curve composed of the bonding block 17 moves to the sprocket 44, the workbench 13 rises under the rebound of the first support spring 12. In summary, the curve composed of the bonding block 17 and the metal fluctuate up and down while translating, and when the metal cutting surface moves to the sprocket 44, the height remains unchanged, so that the laser focal length can always be located at the appropriate position of the metal, so as to achieve the purpose of automatically adjusting the laser focus and the material position, avoiding affecting the quality of metal welding and cutting, and can adapt to the processing of materials of various shapes without program control, greatly reducing the cost of material processing, and at the same time greatly reducing the use of control components, which not only avoids the difficulty of wiring, but also expands the scope of application of the device to complete the operation.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A metal welding and cutting device, characterized in that, It includes a machine base (1), on the side wall of the machine base (1), a guide rail (2) is fixedly connected, on the side wall of the machine base (1), a control panel (3) is installed, and on the top surface of the machine base (1), a laser (4) is installed. On the side wall of the laser (4), a turntable (5) is rotatably connected. At both ends of the turntable (5), a collimating lens (6) and a laser cutting head (7) are installed. On the bottom wall of the machine base (1), a pneumatic push rod (8) is fixedly connected. On the output end of the pneumatic push rod (8), a lifting platform (9) is fixedly connected. On both sides of the lifting platform (9), a sliding seat (10) is slidably connected. On the top surface of the sliding seat (10), a sliding plate (11) is slidably sleeved. Between the bottom surface of the sliding plate (11) and the sliding seat (10), a first support spring (12) is fixedly connected, and on the top surface of the sliding plate (11), a workbench (13) is fixedly connected. Between the side wall of the sliding seat (10) and the side wall of the lifting platform (9), a hydraulic push rod (14) is fixedly connected. On the top surface of the workbench (13), a limiting frame (15) is fixedly connected. Inside the limiting frame (15), a sliding sleeve (16) is slidably sleeved. Both the sliding sleeve (16) and the limiting frame (15) are provided with two, and the two sliding sleeves (16) and the two limiting frames (15) are symmetrically arranged with respect to the bisecting plane of the workbench (13). Inside the sliding sleeve (16), a fitting block (17) is slidably sleeved. At one end of the fitting block (17), a chute (18) is opened. At the other end of the fitting block (17), an adapter block (19) is fixedly connected. On both the adapter block (19) and the fitting block (17), an embedding groove (20) is opened. Inside the embedding groove (20), an embedding rod (21) is fitted and sleeved; On the top surface of the lifting platform (9), a fixed frame (27) is fixedly connected. On the side wall of the fixed frame (27), a guide groove (28) is opened. On the side wall of the guide groove (28), a clamping groove (29) is opened, and inside the guide groove (28), a guide plate (30) is slidably sleeved. Between the bottom surface of the guide plate (30) and the bottom surface of the guide groove (28), a second support spring (31) is fixedly connected, and on the side wall of the guide plate (30), a height limiting rod (38) is fixedly connected. On the side wall of the height limiting rod (38), an open groove (39) is opened, and on the top surface of the height limiting rod (38), a pressing rod (40) is slidably connected. On the top surface of the pressing rod (40), a first bolt (41) is meshed and sleeved, and at the end of the pressing rod (40), a fitting block (42) is fixedly connected. At the top end of the fitting block (42), one end of a rotating shaft (43) is fixedly sleeved. At the other end of the rotating shaft (43), a sprocket (44) is rotatably sleeved. Between the height limiting rod (38) and the fixed frame (27), they are fixed by a second bolt (45); The height limiting rod (38) is arranged in an L shape. The sprocket (44) is meshed and connected with the fitting block (17). The first bolt (41) fixes the height limiting rod (38) and the pressing rod (40).

2. The metal welding and cutting device according to claim 1, wherein: A plurality of fitting blocks (17) are provided. Between the adapter blocks (19) and the chutes (18) of adjacent fitting blocks (17), they are rotatably sleeved. The embedding rod (21) fixes the fitting block (17) and the adapter block (19).

3. A metal welding and cutting device according to claim 1, characterized in that: The lifting table (9) is slidably sleeved with the guide rail (2). There are two hydraulic push rods (14), and the two hydraulic push rods (14) are symmetrically arranged with respect to the bisecting plane of the lifting table (9).

4. A metal welding and cutting device according to claim 1, characterized in that: The fitting block (42) is fitted and connected to the end of the height-limiting rod (38), and the fitting block (42) is slidably connected to the outer surface of the fitting block (17). The pressing rod (40) passes through the limiting frame (15).

5. A metal welding and cutting device according to claim 1, characterized in that: An inner cavity (22) is formed in the side wall of the sliding sleeve (16). A piston (23) is slidably sleeved in the inner cavity (22). A positioning rod (24) is fixedly connected to the end face of the piston (23). A channel (25) is formed in the end face of the inner cavity (22). One end of a connecting pipe (26) communicates with the end of the channel (25). The other end of the connecting pipe (26) communicates with the input end of the hydraulic push rod (14). A groove (32) is formed in the side wall of the guide plate (30). A clamping block (33) is hinged between the side walls of the groove (32). A return spring (34) is fixedly connected between the clamping block (33) and the side wall of the groove (32). A dial rod (35) is slidably sleeved on the end face of the guide plate (30). One end of the dial rod (35) extends into the groove (32). A slider (36) is fixedly connected to the other end of the dial rod (35). A top rod (37) is fixedly connected to the side wall of the slider (36).

6. The metal welding and cutting device according to claim 5, characterized in that: The positioning rod (24) extends outside the inner cavity (22), and the positioning rod (24) is in close contact with the inner surface of the limiting frame (15). There are two connecting pipes (26), and the two connecting pipes (26) correspond to the two sliding sleeves (16) one by one.

7. A metal welding and cutting device according to claim 5, characterized in that: The clamping block (33) is clamped with the clamping groove (29). The groove (32) restricts the counterclockwise rotation of the clamping block (33). The top rod (37) is slidably sleeved with the open slot (39). The corner of the height-limiting rod (38) is in front of the laser cutting head (7). The height-limiting rod (38) and the fitting block (17) are located on both sides of the laser cutting head (7).

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