Metal welding and cutting device

Abstract

The invention belongs to the technical field of metal welding and thermal cutting and discloses a metal welding and cutting device which comprises 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, a laser is installed on the top face of the machine base, and a rotary disc is rotationally connected to the side wall of the laser. The device has the advantages that the positions of a laser focus and a material can be automatically adjusted, the influence on the metal welding and cutting quality is avoided, program control is not needed, the device can adapt to machining of materials with various shapes, the material machining cost is greatly reduced, meanwhile, the use of control elements is also greatly reduced, the difficulty of wire arrangement is avoided, and the production efficiency is improved. The application range of the device is expanded, metal welding cutting and metal fixing can be conducted at the same time, step-by-step operation is not needed, the hidden danger of misoperation is avoided, meanwhile, the operation time can be saved, the lowest point of the metal surface can be rapidly determined, and therefore the focus point of a laser beam can be rapidly determined.

Description

Technical Field

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

[0002] Thermal cutting refers to the method of using concentrated heat energy to melt or burn and separate materials. Thermal cutting is widely used in the industrial sector for cutting metal materials and processing parts. This includes metal laser cutting, which uses a high-energy laser beam to melt and vaporize the material, and uses air flow to blow away the dissolved material to achieve precise cutting of the material; while metal welding, including laser welding, uses a laser beam to melt the metal material, form a molten pool and connect them together.

[0003] Both are completed by laser beam, so the focal position of the laser beam needs to be considered. The focal position of laser welding is crucial to the 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 cut surface and the width of the cut.

[0004] After searching, Chinese patent number CN113714808B discloses a metal welding and cutting device. Although it can be converted at will according to needs, the cost is low, and the operation is simple, thereby improving work efficiency, it cannot automatically adjust the position of the laser focus and the material. When the surface of the material is uneven or has an undulating shape, the focus of the laser cannot effectively heat the material, thereby affecting the quality of metal welding and cutting. If the height of the lifting platform, the collimating lens or the focusing point of the laser cutting head are 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 is greatly increased, and the use of control components is also greatly increased, which brings difficulties in wiring and chip use. At the same time, the scope of application of the device processing is limited, and metal welding and cutting and metal fixing cannot be carried out at the same time. They need to be operated in steps, which is prone to operational risks. At the same time, the operation time cannot be saved, and the lowest point of the metal surface cannot be quickly determined, so the focusing point of the laser beam cannot be quickly determined. Summary of the invention

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

[0006] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: a metal welding and cutting device, comprising 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, a lifting platform is fixedly connected to the output end of the pneumatic push rod, slide seats are slidably connected to the two sides of the lifting platform, a slide plate is slidably sleeved on the top surface of the slide seat, and the slide plate A first supporting spring is fixedly connected between the bottom surface and the sliding seat, and a working table 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 limit frame is fixedly connected to the top surface of the working table, a sliding sleeve is slidably sleeved in the limit frame, two sliding sleeves and two limit frames are provided, and the two sliding sleeves and two limit frames are symmetrically arranged with respect to the bisecting plane of the working table, a fitting block is slidably sleeved in the sliding sleeve, a sliding groove is provided at one end of the fitting block, a connecting block is fixedly connected to the other end of the fitting block, an embedding groove is provided on the connecting block and the fitting block, and an embedding rod is embeddedly sleeved in the embedding groove;

[0007] The top surface of the lifting platform is fixedly connected to a fixed frame, a guide groove is provided on the side wall of the fixed frame, a clamping groove is provided on the side wall of the guide groove, and a guide plate is slidably sleeved in the guide groove, a second supporting 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 provided on the side wall of the height limiting rod, and a pressure 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 pressure rod, and an engaging block is fixedly connected to the end of the pressure rod, one end of a rotating shaft is fixedly sleeved on the top end of the engaging block, and a sprocket is rotatably sleeved on the other end of the rotating shaft, and the height limiting rod and the fixed frame are fixed by a second bolt.

[0008] As a further solution of the present invention: a plurality of the fitting blocks are provided, and the connecting blocks of adjacent fitting blocks are rotatably sleeved with the slide grooves, and the embedded rods fix the fitting blocks and the connecting blocks.

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

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

[0011] As a further solution of the present invention: the embedding block is embedded and connected with the end of the height limiting rod, and the embedding block is slidably connected with the outer surface of the fitting block, and the pressure 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. The present invention starts the hydraulic push rod, so that the liquid in the hydraulic push rod flows back and a part of it enters the connecting pipe, thereby contracting the hydraulic push rod, causing the slide and the workbench to translate, and then translate the metal, so that the metal is cut by the laser beam emitted by the laser cutting head, and the liquid entering the connecting pipe will flow into the channel and enter the inner cavity through the channel, so that the piston in the inner cavity is pressed and moved outward, so that the positioning rod on the piston squeezes the inner surface of the limit frame, so that the positioning rod frictionally tightens the sliding sleeve, and then the sliding sleeve and the limit frame are relatively fixed, and the fixing of the limit frame will fix the fitting block, and the fitting block is in close contact with the metal surface, so that the metal is fully fixed, so that metal welding and cutting and metal fixing can be carried out simultaneously, without the need for step-by-step operation, avoiding the hidden danger of operating errors, and saving operating time.

[0018] The curve formed by the multiple fitting blocks of the present invention is the curve of the metal surface. At this time, the embedding rod on the fitting block is pressed again, so that the embedding rod is inserted into the embedding groove and fits and sleeves with the connecting block, so that the connecting block is fixed with the adjacent fitting blocks, so that the curve formed by the multiple fitting blocks is fixed. At this time, the first bolt is reversed again, so that the first bolt is disengaged from the height limiting rod, thereby releasing the fixation of the pressure rod, and then the sprocket is moved to make the sprocket move along the fitting block. In this process, when the curve formed by the fitting blocks rises and falls, the sprocket also rises and falls accordingly, thereby causing the pressure rod on the sprocket to rise and fall. When the pressure rod descends, the pressure rod will press down the height limiting rod, so that the height limiting rod drives The guide plate descends, and the block on the guide plate is squeezed by the inner wall of the fixed frame, so that the block shrinks into the groove, so that the guide plate can smoothly descend and squeeze the second supporting spring. When the pressure rod rises, the pressure rod is disengaged from the height limiting rod. At this time, the block is re-engaged with the slot under the rebound of the reset spring, so that the height limiting rod and the guide plate cannot rise. According to the above principle, the final position of the height limiting rod and the guide plate corresponds to the lowest point of the curve formed by the fitting blocks. At this time, the focusing point of the laser cutting head or the collimating lens is determined according to the height of the height limiting rod, so as to achieve the purpose of quickly determining the lowest point of the metal surface, thereby quickly determining the focusing point of the laser beam. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the structure of a hydraulic push rod in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the bonding block structure in an embodiment of the present invention;

[0022] Figure 4 A half-section schematic diagram of a bonding block structure in an embodiment of the present invention;

[0023] Figure 5 A half-section schematic diagram of a guide plate structure in an embodiment of the present invention;

[0024] Figure 6 In the embodiment of the present invention Figure 5 A magnified view of the structure of part A;

[0025] Figure 7 This is a schematic diagram of the structure of a slider in an embodiment of the present invention;

[0026] Figure 8 A side view of the slide structure in an embodiment of the present invention;

[0027] Fig. 9 It is a front cross-sectional view of the sliding sleeve structure in an embodiment 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 platform; 10, slide seat; 11, slide plate; 12, first support spring; 13, workbench; 14, hydraulic push rod; 15, limit frame; 16, sliding sleeve; 17, fitting block; 18, slide groove; 19, connecting block; 20, embedded groove; 21, embedded rod; 22, inner cavity; 23, Piston; 24, positioning rod; 25, channel; 26, connecting pipe; 27, fixing frame; 28, guide groove; 29, clamping groove; 30, guide plate; 31, second supporting spring; 32, groove; 33, clamping block; 34, return spring; 35, lever; 36, slider; 37, push rod; 38, height limiting rod; 39, open groove; 40, pressure rod; 41, first bolt; 42, interlocking block; 43, rotating shaft; 44, sprocket; 45, second bolt. DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of 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 Figure 1-Figure 3 and Figure 5-Figure 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 Figure 1-Figure 4 and Figure 8The present invention provides a technical solution: a metal welding and cutting device, comprising 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, a collimating lens 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, a slide seat 10 is slidably connected to 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, and the slide seat 10 is provided with a plurality of support springs 13, and the slide seat 10 is provided with a plurality of support springs 14. A workbench 13 is fixedly connected to the top surface of the 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 limit frame 15 is fixedly connected to the top surface of the workbench 13, a sliding sleeve 16 is slidably sleeved in the limit frame 15, two sliding sleeves 16 and two limit frames 15 are provided, and the two sliding sleeves 16 and the two limit frames 15 are symmetrically arranged about the bisecting plane of the workbench 13, a fitting block 17 is slidably sleeved in the sliding sleeve 16, a sliding groove 18 is provided at one end of the fitting block 17, a connecting block 19 is fixedly connected to the other end of the fitting block 17, an embedding groove 20 is provided on the connecting block 19 and the fitting block 17, and an embedding rod 21 is embedded and sleeved in the embedding groove 20.

[0035] See also Figure 3 and Figure 4 There are multiple bonding blocks 17, and the connecting blocks 19 of adjacent bonding blocks 17 are rotatably sleeved with the slide grooves 18, and the embedded rods 21 fix the bonding blocks 17 and the connecting blocks 19.

[0036] See also Figure 1 and Figure 2 The lifting platform 9 is slidably sleeved with the guide rail 2 , and two hydraulic push rods 14 are provided, 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 metal welding and cutting process, the height limiting rod 38 is fastened 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, so that the pressure rod 40 is fixed to the height limiting rod 38 again, and then the hydraulic push rod 14 is started, so that the liquid in the hydraulic push rod 14 flows 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 cut by the laser. The laser beam emitted by the cutting head 7 cuts, and the liquid entering the connecting tube 26 will flow into the channel 25 and enter the inner cavity 22 through the channel 25, so that the piston 23 in the inner cavity 22 is pressed and moved 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 tightly attached to the metal surface, so that the metal is fully fixed, so that metal welding cutting and metal fixing can be carried out simultaneously, without the need for step-by-step operation, avoiding the hidden danger of operating errors, and saving operating time.

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

[0039] See also Figure 2 and Fig. 9 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 . Two connecting pipes 26 are provided, and the two connecting pipes 26 correspond to the two sliding sleeves 16 one by one.

[0040] See also Figure 1 , Figure 3 and Figure 6The block 33 is engaged with the slot 29, the groove 32 limits the counterclockwise rotation of the block 33, the push rod 37 is slidably connected with the open slot 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, the metal is placed on the workbench 13, and the laser cutting head 7 is located on the cutting line. At this time, the sliding sleeve 16 is moved down again, so that the fitting block 17 on the sliding sleeve 16 is in close contact with the surface of the metal, so that the curve formed by the multiple fitting blocks 17 is the curve of the metal surface. At this time, the embedded rod 21 on the fitting block 17 is pressed again, so that the embedded rod 21 is inserted into the embedded groove 20 and is embedded and sleeved with the connecting block 19, so that the connecting block 19 is fixed to the adjacent fitting blocks 17, so that the curve formed by the multiple fitting blocks 17 is fixed. At this time, the first bolt 41 is reversed again, so that the first bolt 41 is disengaged from the height limiting rod 38, thereby releasing the fixation of the pressure rod 40, and then the sprocket 44 is moved so that the sprocket 44 moves along the fitting block 17. In this process, when the curve formed by the fitting blocks 17 fluctuates, the sprocket 44 also fluctuates accordingly, thereby making the sprocket 44 The pressure rod 40 on the upper part rises and falls. When the pressure rod 40 descends, the pressure rod 40 will press the height limiting rod 38 downward, so that the height limiting rod 38 drives the guide plate 30 to descend. At this time, the block 33 on the guide plate 30 is squeezed by the inner wall of the fixed frame 27, so that the block 33 shrinks into the groove 32, so that the guide plate 30 can smoothly descend and squeeze the second supporting spring 31. When the pressure rod 40 rises, the pressure rod 40 disengages from the height limiting rod 38. At this time, the block 33 is re-engaged with the slot 29 under the rebound of the return spring 34, so that the height limiting rod 38 and the guide plate 30 cannot rise. According to the above principle, the final position of the height limiting rod 38 and the guide plate 30 corresponds to the lowest point of the curve formed by the bonding block 17. At this time, the focusing point of the laser cutting head 7 or the collimating lens 6 is determined according to the height of the height limiting rod 38, so as to achieve the purpose of quickly determining the lowest point of the metal surface, thereby quickly determining the focusing point of the laser beam.

[0042] The working principle and use process of the present invention are as follows: when metal cutting is required, the metal is placed on the workbench 13, and the laser cutting head 7 is located on the cutting line. At this time, the sliding sleeve 16 is moved down again, so that the fitting block 17 on the sliding sleeve 16 is in close contact with the surface of the metal, so that the curve formed by the multiple fitting blocks 17 is the curve of the metal surface. At this time, the embedding rod 21 on the fitting block 17 is pressed again, so that the embedding rod 21 is inserted into the embedding groove 20 and is embedded and sleeved with the connecting block 19, so that the connecting block 19 is fixed to the adjacent fitting blocks 17, so that the curve formed by the multiple fitting blocks 17 is fixed. At this time, the first bolt 41 is reversed again, so that the first bolt 41 is disengaged from the height limiting rod 38, thereby releasing the fixation of the pressure rod 40, and then the sprocket 44 is moved so that the sprocket 44 moves along the fitting block 17. In this process, when the curve formed by the fitting blocks 17 fluctuates, the sprocket 44 also fluctuates accordingly, thereby making The pressure rod 40 on the sprocket 44 rises and falls. When the pressure rod 40 descends, the pressure rod 40 will press the height limiting rod 38 downward, so that the height limiting rod 38 drives the guide plate 30 to descend. At this time, the block 33 on the guide plate 30 is squeezed by the inner wall of the fixed frame 27, so that the block 33 shrinks into the groove 32, so that the guide plate 30 can smoothly descend and squeeze the second supporting spring 31. When the pressure rod 40 rises, the pressure rod 40 is disengaged from the height limiting rod 38. At this time, the block 33 is re-engaged with the card slot 29 under the rebound of the return spring 34, so that the height limiting rod 38 and the guide plate 30 cannot rise. According to the above principle, the final position of the height limiting rod 38 and the guide plate 30 corresponds to the lowest point of the curve formed by the bonding block 17. At this time, the focusing point of the laser cutting head 7 or the collimating lens 6 is determined according to the height of the height limiting rod 38, so as to achieve the purpose of quickly determining the lowest point of the metal surface, thereby quickly determining the focusing 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: The machine base (1) comprises 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), a collimating lens (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), a sliding seat (10) is slidably connected to the two sides of the lifting platform (9), a slide plate (11) is slidably sleeved on the top surface of the slide plate (10), a first support spring (12) is fixedly connected between the bottom surface of the slide plate (11) and the slide plate (10), and a workbench is fixedly connected to the top surface of the slide plate (11). (13), 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), the top surface of the workbench (13) is fixedly connected to a limit frame (15), a sliding sleeve (16) is slidably sleeved in the limit frame (15), two sliding sleeves (16) and two limit frames (15) are provided, and the two sliding sleeves (16) and the two limit frames (15) are symmetrically arranged with respect to the bisecting plane of the workbench (13), a fitting block (17) is slidably sleeved in the sliding sleeve (16), a sliding groove (18) is provided at one end of the fitting block (17), a connecting block (19) is fixedly connected at the other end of the fitting block (17), an embedding groove (20) is provided on the connecting block (19) and the fitting block (17), and an embedding rod (21) is embeddedly sleeved in the embedding groove (20); A fixed frame (27) is fixedly connected to the top surface of the lifting platform (9), a guide groove (28) is provided on the side wall of the fixed frame (27), a clamping groove (29) is provided on the side wall of the guide groove (28), a guide plate (30) is slidably sleeved in the guide groove (28), a second support spring (31) is fixedly connected between the bottom surface of the guide plate (30) and the bottom surface of the guide groove (28), a height limiting rod (38) is fixedly connected to the side wall of the guide plate (30), and a clamping groove (29) is provided on the side wall of the guide groove (28). An open groove (39) is provided, and a pressure rod (40) is slidably connected to the top surface of the height limiting rod (38), a first bolt (41) is meshedly sleeved on the top surface of the pressure rod (40), and a fitting block (42) is fixedly connected to the end of the pressure rod (40), one end of a rotating shaft (43) is fixedly sleeved on the top end of the fitting block (42), and a sprocket (44) is rotatably sleeved on the other end of the rotating shaft (43), and the height limiting rod (38) is fixed to the fixed frame (27) by a second bolt (45).

2. A metal welding and cutting device according to claim 1, characterized in that: A plurality of the laminating blocks (17) are provided, and the connecting blocks (19) of adjacent laminating blocks (17) are rotatably sleeved with the slide grooves (18), and the embedded rods (21) fix the laminating blocks (17) and the connecting blocks (19).

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

4. A metal welding and cutting device according to claim 1, characterized in that: The height limiting rod (38) is arranged in an L shape, the sprocket (44) is meshingly connected with the fitting block (17), and the first bolt (41) fixes the height limiting rod (38) and the pressure rod (40).

5. A metal welding and cutting device according to claim 1, characterized in that: 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).

6. A metal welding and cutting device according to claim 1, characterized in that: An inner cavity (22) is provided 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 surface of the piston (23), a channel (25) is provided on the end surface of the inner cavity (22), an end of the channel (25) is connected to one end of a connecting pipe (26), the other end of the connecting pipe (26) is connected to the input end of the hydraulic push rod (14), and the inner wall of the guide plate (30) is provided with a piston (23) in a sliding sleeve. A groove (32) is provided, 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 lever (35) is slidably sleeved on the end surface of the guide plate (30), one end of the lever (35) extends into the groove (32), a slider (36) is fixedly connected to the other end of the lever (35), and a push rod (37) is fixedly connected to the side wall of the slider (36).

7. A metal welding and cutting device according to claim 6, 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). Two connecting tubes (26) are provided, and the two connecting tubes (26) correspond to the two sliding sleeves (16) one by one.

8. A metal welding and cutting device according to claim 6, characterized in that: The clamping block (33) is clamped with the clamping slot (29), the groove (32) limits the counterclockwise rotation of the clamping block (33), the push rod (37) is slidably sleeved with the open slot (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).

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