A laser welding machine for processing agricultural machinery metal parts

Abstract

The present invention relates to the technical field of laser welding machines, and discloses a laser welding machine for processing agricultural machinery metal accessories, comprising a workbench, a clamping device is arranged on the top of the workbench, a cleaning device is arranged on the top of the workbench, a protective device is arranged on the top, and a welding machine is fixedly installed on the top of the workbench; the clamping device comprises a support plate, a cylinder, a feeding plate, a motor, a clamping plate, a reciprocating screw, a fixed plate 1, a hinged rod 1, a fixed plate 2, a straightening plate, and a concave plate 1, the support plate is fixedly connected to the inner wall of the workbench, the cylinder is fixedly installed on the top of the support plate, the feeding plate is fixedly connected to the telescopic end of the cylinder, the motor is fixedly connected to the left side of the workbench, and the reciprocating screw is fixedly connected to the output end of the motor. The present invention can effectively prevent the workpiece from moving during the welding process through the clamping device.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding machines, in particular to a laser welding machine for processing agricultural machinery metal accessories. Background Art

[0002] Laser welding is a welding method that uses a high-energy-density laser beam as a heat source. After the laser beam is focused, it can generate extremely high energy density in a very small area. When the laser beam is irradiated on the surface of the workpiece, the light energy is absorbed by the workpiece and quickly converted into heat energy, causing the workpiece material to melt or even vaporize instantly, forming a molten pool. Subsequently, under the continuous action of the laser beam, the liquid metal fuses together. When the laser beam is removed, the molten pool cools and solidifies, thereby achieving material connection.

[0003] The patent with announcement number CN221967131U relates to the technical field of welding devices, and in particular to a welding device for processing agricultural machinery parts, including an operating table, a support column is slidably installed on the operating table through a moving component, a welding machine is fixedly installed on the support column, a mounting frame is fixedly installed on the side of the welding machine, one end of the mounting frame is provided with a rotating groove, a rotating rod is rotatably installed in the rotating groove, an impact block is fixedly installed on the rotating rod, an arc spring rod is fixedly installed on the rotating rod, and a transmission component for intermittently driving the rotating rod to rotate is provided on the welding machine. During the welding process, the utility model can continuously knock the weld between two metal plates through the mutual cooperation of the mounting frame, the rotating rod, the impact block, the transmission component and the arc spring rod, thereby knocking off the welding slag between the welds, without the need for staff to handle it separately later, simple operation, reduced work intensity of staff, and improved welding efficiency.

[0004] During use, it is difficult to clamp the workpiece of the above device, so that the workpiece can easily move during welding due to touch during operation, gravity of the molten pool or thermal deformation, which will cause the shape of the weld to be irregular and seriously affect the appearance quality of the weld. Therefore, a laser welding machine for processing agricultural machinery metal parts is proposed to solve the above problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a laser welding machine for processing agricultural machinery metal accessories in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a laser welding machine for processing agricultural machinery metal accessories, including a workbench, a clamping device is arranged on the top of the workbench, a cleaning device is arranged on the top of the workbench, a protective device is arranged on the top, and a welding machine is fixedly installed on the top of the workbench; the clamping device includes a support plate, a cylinder, a feeding plate, a motor, a clamping plate, a reciprocating screw rod, a fixed plate 1, a hinged rod 1, a fixed plate 2, a squaring plate, and a concave plate 1, the support plate is fixedly connected to the inner wall of the workbench, the cylinder is fixedly installed on the top of the support plate, and the feeding plate is fixedly connected to the inner wall of the workbench. The telescopic end of the cylinder is connected, the motor is fixedly connected to the left side of the workbench, the reciprocating screw is fixedly connected to the output end of the motor, the concave plate 1 is movably connected to the circumferential surface of the reciprocating screw, and the clamping plate is fixedly connected to the top of the concave plate 1. The concave plate 1 moves to drive the clamping plate to move and clamp the workpiece. The clamping device can effectively prevent the workpiece from moving during the welding process. Heat will be generated during the welding process, which may cause the workpiece to deform thermally and change its position. When welding thin plate metal structures, heat can easily cause the thin plate to warp and deform. Suitable clamping can limit this deformation so that the welding arc can It acts stably on the welding part. The stable welding process is helpful to form a uniform weld and avoid welding defects such as uneven weld width, weld nodules, and pores, thereby improving the welding quality. The fixed plate 1 is fixedly connected to the left side of the clamping plate, the hinged rod 1 is hinged to the inner wall of the fixed plate 1, the inner wall of the fixed plate 2 is hinged to the hinged rod 1, the aligning plate is fixedly connected to the front of the fixed plate 2, the concave plate 1 is slidably connected to the inner wall of the workbench, the bottom of the aligning plate is in contact with the top of the workbench, and the number of the aligning plates is two, and the two aligning plates are symmetrically distributed at the front and rear of the workbench. The circumferential surface of the reciprocating screw is rotatably connected to the inner wall of the workbench, the surface of the loading plate is slidably connected to the inner wall of the workbench, and the alignment plate moves to guide the workpiece so that the workpiece is aligned on the workbench. When the workpiece is aligned, the angle between the welding electrode and the workpiece can be maintained within an appropriate range. When welding fillet welds, if the workpiece is not aligned, the angle between the welding electrode and the workpiece surface may deviate from the ideal 45° or so, which will cause uneven weld formation and may appear thick on one side and thin on the other. Aligning the workpiece can make parameters such as weld width and height more in line with standards, thereby ensuring the appearance quality of the weld.

[0007] Preferably, the cleaning device includes a concave plate 2, an L-shaped plate, a slide plate, a brush plate, a guide plate 1, a guide plate 2, a support plate 1, a spring 1, a knocking rod, and a spring 2. The concave plate 2 is fixedly connected to the top of the workbench, the L-shaped plate is fixedly connected to the top of the straightening plate, the slide plate is fixedly connected to the front of the L-shaped plate, the spring 2 is fixedly connected to the bottom of the slide plate, and the brush plate is fixedly connected to the bottom of the spring 2. The surface of the workpiece is cleaned by moving the brush plate to facilitate subsequent welding. Oil, rust and impurities on the surface of the workpiece are one of the main reasons for the generation of pores. When welding steel workpieces, if there is oil on the surface, the oil will decompose and produce gas under the high temperature of welding. These gases will form pores after entering the molten pool. Cleaning the surface of the workpiece can effectively remove these oil and impurities, so that the gas in the molten pool mainly comes from the decomposition of the welding material and the protective gas, reducing the possibility of pore formation, thereby improving the density and quality of the weld. One is fixedly connected to the rear part of the brush plate, the guide plate two is fixedly connected to the front part of the straightening plate, the support plate one is fixedly connected to the front part of the brush plate, the spring one is fixedly connected to the bottom of the support plate one, the knocking rod is fixedly connected to the bottom of the spring one, the slide plate is slidably connected to the inner wall of the concave plate two, the right side of the brush plate is in contact with the left side of the concave plate two, the knocking rod will move downward to knock the surface of the workpiece, during the welding process, the workpiece will generate welding stress due to local heating, when the weld cools, the weld metal shrinkage will be constrained by the surrounding parent material, thus forming tension, when welding a thick plate structure, the shrinkage of the weld area will generate greater stress inside the workpiece, knocking on the workpiece surface can make the weld metal produce a certain degree of plastic deformation during the cooling process, thereby reducing the welding stress, this plastic deformation can offset part of the tensile stress caused by the shrinkage of the weld, reduce the risk of cracks in the workpiece after welding, and at the same time detect whether there is welding leakage or lack of welding in the workpiece.

[0008] Preferably, the protective device includes a connecting plate 1, a hinged rod 2, a guard plate, an observation window, and a connecting plate 2. The connecting plate 1 is fixedly connected to the rear part of the slide plate, the hinged rod 2 is hinged to the inner wall of the connecting plate 1, the guard plate is fixedly installed on the top of the workbench, and the observation window is hinged to the inner wall of the guard plate. The observation window moves to prevent the phenomenon of glare from strong light during welding. The strong light generated during welding contains various harmful light rays such as ultraviolet rays, infrared rays and visible light. Ultraviolet rays can damage the cornea and conjunctiva of the eyes and cause photoelectric conjunctivitis. The patient will feel severe eye pain, photophobia, tearing and blepharospasm, etc. Infrared rays are mainly thermal radiation. Long-term exposure may cause clouding of the lens of the eye and form cataracts. Preventing glare from strong light can effectively avoid these eye diseases and protect the eyes. Normal physiological structure and function, the connecting plate 2 is fixedly connected to the front of the observation window, the protective device also includes a movable plate, a spring 3, a roller, a filter barrel, and a support plate 2. The movable plate and the spring 3 are fixedly connected to the top of the workbench, the movable plate is fixedly connected to the front of the spring 3, the roller is in contact with the movable plate, the filter barrel is fixedly connected to the top of the roller, the support plate 2 is fixedly connected to the inner wall of the concave plate 2, the inner wall of the support plate 2 is rotatably connected to the filter barrel, the connecting plate 2 is hinged to the hinged rod 2, and the guard plate is used to prevent welding slag from splashing. The rotation of the roller drives the filter barrel to rotate, so that the activated carbon in the filter barrel rotates, thereby increasing the contact area between the activated carbon and the air, so that the activated carbon absorbs harmful gases during welding, and ensures the breathing safety of the workers.

[0009] The present invention adopts the above technical solution to bring the following beneficial effects:

[0010] 1. The laser welding machine for processing metal parts of agricultural machinery cooperates with each other among the support plate, cylinder, feeding plate, motor, clamping plate, reciprocating screw, fixed plate 1, hinge rod 1, fixed plate 2, squaring plate and concave plate 1. The concave plate 1 moves to drive the clamping plate to move and clamp the workpiece. The clamping device can effectively prevent the workpiece from moving during the welding process. Heat will be generated during the welding process, which may cause the workpiece to deform and change its position due to thermal deformation. When welding thin plate metal structures, heat can easily cause the thin plate to warp and deform. Appropriate clamping can limit this deformation, so that the welding arc can stably act on the welding part, and stable welding The welding process helps to form a uniform weld and avoid welding defects such as uneven weld width, weld nodules, and pores, thereby improving the welding quality. The straightening plate moves to guide the workpiece so that the workpiece is straightened on the workbench. When the workpiece is straightened, the angle between the welding electrode and the workpiece can be maintained in an appropriate range. When welding fillet welds, if the workpiece is not straightened, the angle between the welding electrode and the workpiece surface may deviate from the ideal 45°, which will cause uneven weld formation and may appear thick on one side and thin on the other. Straightening the workpiece can make parameters such as weld width and height more in line with standards and ensure the appearance quality of the weld.

[0011] 2. The laser welding machine for processing agricultural machinery metal parts cooperates with each other among the concave plate 2, L-shaped plate, slide plate, brush plate, guide plate 1, guide plate 2, support plate 1, spring 1, knocking rod and spring 2. The brush plate moves to clean the surface of the workpiece to facilitate subsequent welding. The oil, rust and impurities on the surface of the workpiece are one of the main reasons for the formation of pores. When welding steel workpieces, if there is oil on the surface, the oil will decompose and produce gas under the high temperature of welding. These gases will form pores after entering the molten pool. Cleaning the surface of the workpiece can effectively remove these oil and impurities, so that the gas in the molten pool mainly comes from the decomposition of the welding material and the protective gas, reducing the pores. The possibility of formation, thereby improving the density and quality of the weld, the tapping rod will move downward to tap the surface of the workpiece. During the welding process, the workpiece will generate welding stress due to local heating. When the weld cools down, the weld metal shrinkage will be constrained by the surrounding parent material, thus forming tension. When welding a thick plate structure, the shrinkage of the weld area will generate greater stress inside the workpiece. Tapping the workpiece surface can cause the weld metal to produce a certain degree of plastic deformation during the cooling process, thereby reducing the welding stress. This plastic deformation can offset part of the tensile stress caused by the shrinkage of the weld, reduce the risk of cracks in the workpiece after welding, and at the same time detect whether the workpiece has welding leakage or lack of welding.

[0012] 3. The laser welding machine for processing metal parts of agricultural machinery cooperates with each other through the connection plate 1, the hinge rod 2, the guard plate, the observation window, the connection plate 2, the moving plate, the spring 2, the roller, the filter barrel, and the support plate 2. The observation window moves to prevent the phenomenon of glare during welding. The strong light generated during welding contains a variety of harmful light rays such as ultraviolet rays, infrared rays and visible light. Ultraviolet rays can damage the cornea and conjunctiva of the eyes, causing photoelectric conjunctivitis. Patients will feel severe eye pain, photophobia, tearing and eyelid spasm, etc. Infrared rays are mainly thermal radiation. Long-term exposure may cause opacity of the lens of the eyes and form cataracts. Preventing glare from strong light can effectively avoid these eye diseases and protect the normal physiological structure and function of the eyes. The guard plate prevents welding slag from splashing. The rotation of the roller drives the filter barrel to rotate, so that the activated carbon in the filter barrel rotates, which increases the contact area between the activated carbon and the air, so that the activated carbon absorbs harmful gases during welding and ensures the breathing safety of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 It is a cross-sectional view of the structure of the present invention;

[0015] Figure 3 It is a schematic diagram of the clamping device of the present invention;

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0017] Figure 5 It is a schematic diagram of the cleaning device of the present invention;

[0018] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B in the middle;

[0019] Figure 7 It is a schematic diagram of the protective device of the present invention;

[0020] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point C in the middle.

[0021] In the figure: 1, workbench; 2, clamping device; 201, support plate; 202, cylinder; 203, feeding plate; 204, motor; 205, clamping plate; 206, reciprocating screw rod; 207, fixed plate 1; 208, hinged rod 1; 209, fixed plate 2; 210, straightening plate; 211, concave plate 1; 3, cleaning device; 301, concave plate 2; 302, L-shaped plate; 303, slide plate; 304, brush plate; 305. Guide plate one; 306. Guide plate two; 307. Support plate one; 308. Spring one; 309. Knocking rod; 310. Spring two; 4. Protective device; 401. Connecting plate one; 402. Articulated rod two; 403. Guard plate; 404. Observation window; 405. Connecting plate two; 406. Moving plate; 407. Spring three; 408. Roller; 409. Filter barrel; 410. Support plate two; 5. Welding machine. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 8, one embodiment of the present invention is: a laser welding machine for processing agricultural machinery metal parts, comprising a workbench 1, a clamping device 2 is arranged on the top of the workbench 1, a cleaning device 3 is arranged on the top of the workbench 1, a protective device 4 is arranged on the top, and a welding machine 5 is fixedly installed on the top of the workbench 1;The clamping device 2 includes a support plate 201, a cylinder 202, a feeding plate 203, a motor 204, a clamping plate 205, a reciprocating screw rod 206, a fixed plate 207, a hinge rod 208, a fixed plate 209, a straightening plate 210, and a concave plate 211. The support plate 201 is fixedly connected to the inner wall of the workbench 1, the cylinder 202 is fixedly installed on the top of the support plate 201, the feeding plate 203 is fixedly connected to the telescopic end of the cylinder 202, the motor 204 is fixedly connected to the left side of the workbench 1, the reciprocating screw rod 206 is fixedly connected to the output end of the motor 204, the concave plate 211 is movably connected to the circumferential surface of the reciprocating screw rod 206, and the clamping plate 205 is fixedly connected to the concave plate 211 The top of the device, when it is started, the feeding plate 203 is driven to move upwards through the telescopic end of the cylinder 202, and the feeding plate 203 moves upwards to transport the agricultural machinery metal parts upwards, which is convenient for welding, saves working time, and improves working efficiency. The reciprocating screw rod 206 is driven to move by the motor 204, and the concave plate 211 is driven to move through the cross-type spiral groove on the reciprocating screw rod 206. The concave plate 211 moves and drives the clamping plate 205 to move to clamp the workpiece. The clamping device 2 can effectively prevent the workpiece from moving during the welding process. Heat will be generated during the welding process, which may cause the workpiece to deform thermally and change its position. When welding thin plate metal structures, the heat can easily cause the thin plate to warp and deform. Appropriate clamping can limit this deformation, so that the welding arc can stably act on the welding part. The stable welding process is conducive to forming a uniform weld and avoiding welding defects such as uneven weld width, weld nodules, and pores, thereby improving the welding quality. The fixed plate 207 is fixedly connected to the left side of the clamping plate 205, the hinged rod 208 is hinged to the inner wall of the fixed plate 207, the inner wall of the fixed plate 209 is hinged to the hinged rod 208, the straightening plate 210 is fixedly connected to the front of the fixed plate 209, the concave plate 211 is slidably connected to the inner wall of the workbench 1, the bottom of the straightening plate 210 is in contact with the top of the workbench 1, and there are two straightening plates 210, and the two straightening plates 210 are provided. The plates 210 are symmetrically distributed at the front and rear parts of the workbench 1. The circumferential surface of the reciprocating screw 206 is rotatably connected to the inner wall of the workbench 1. The surface of the loading plate 203 is slidably connected to the inner wall of the workbench 1. The workpiece is guided by the movement of the straightening plate 210 so that the workpiece is straightened on the workbench 1. When the workpiece is straightened, the angle between the welding electrode and the workpiece can be kept in a suitable range. When welding fillet welds, if the workpiece is not straightened, the angle between the welding electrode and the workpiece surface may deviate from the ideal 45°, which will cause uneven weld formation, and one side may be thick and the other side may be thin. Straightening the workpiece can make the parameters such as the weld width and height more in line with the standard, ensuring the appearance quality of the weld. ;

[0024] The cleaning device 3 includes a concave plate 2 301, an L-shaped plate 302, a slide plate 303, a brush plate 304, a guide plate 1 305, a guide plate 2 306, a support plate 1 307, a spring 1 308, a knock rod 309, and a spring 2 310. The concave plate 2 301 is fixedly connected to the top of the workbench 1, the L-shaped plate 302 is fixedly connected to the top of the aligning plate 210, the slide plate 303 is fixedly connected to the front of the L-shaped plate 302, the spring 2 310 is fixedly connected to the bottom of the slide plate 303, and the brush plate 304 is fixedly connected to the bottom of the spring 2 310. The L-shaped plate 210 is moved to drive the L-shaped plate 210 to move. The plate 302 moves, the L-shaped plate 302 moves to drive the slide plate 303 to move, the slide plate 303 moves to drive the spring 2 310 to move, the spring 2 310 moves to drive the brush plate 304 to move, and the brush plate 304 moves to clean the surface of the workpiece to facilitate subsequent welding. The oil stains, rust and impurities on the surface of the workpiece are one of the main reasons for the formation of pores. When welding steel workpieces, if there is oil stains on the surface, under the action of high temperature welding, the oil stains will decompose and produce gas. After these gases enter the molten pool, pores will be formed, and cleaning the surface of the workpiece can effectively remove these oil stains and impurities, making the gas in the molten pool the main source The decomposition and protective gas of the welding material reduce the possibility of pore formation, thereby improving the density and quality of the weld. The guide plate 305 is fixedly connected to the rear of the brush plate 304, the guide plate 306 is fixedly connected to the front of the squaring plate 210, the support plate 307 is fixedly connected to the front of the brush plate 304, the spring 308 is fixedly connected to the bottom of the support plate 307, the knocking rod 309 is fixedly connected to the bottom of the spring 308, the slide plate 303 is slidably connected to the inner wall of the concave plate 301, the right side of the brush plate 304 contacts the left side of the concave plate 301, and the knocking rod 309 is fixedly connected to the bottom of the spring 308. It will move downward and strike the surface of the workpiece. During the welding process, the workpiece will generate welding stress due to local heating. When the weld cools down, the shrinkage of the weld metal will be constrained by the surrounding parent material, thus forming tension. When welding a thick plate structure, the shrinkage of the weld area will generate greater stress inside the workpiece. Striking the workpiece surface can cause the weld metal to produce a certain degree of plastic deformation during the cooling process, thereby reducing the welding stress. This plastic deformation can offset part of the tensile stress caused by the shrinkage of the weld, reduce the risk of cracks in the workpiece after welding, and at the same time detect whether the workpiece has welding leakage or missing welding.

[0025] Working principle: when the device is started, the feeding plate 203 is driven to move upward by the telescopic end of the cylinder 202, and the feeding plate 203 moves upward to transport the agricultural machinery metal parts upward, which is convenient for welding, saves working time and improves working efficiency. The reciprocating screw rod 206 is driven to move by the motor 204, and the concave plate 211 is driven to move by the cross-type spiral groove on the reciprocating screw rod 206. The movement of the concave plate 211 drives the clamping plate 205 to move to clamp the workpiece. The clamping device 2 can effectively prevent the workpiece from moving during the welding process. Heat will be generated during the welding process, which may cause the workpiece to deform thermally and change its position. When welding thin plate metal structures, heat can easily cause the thin plate to warp and deform. Appropriate clamping can limit this deformation, so that the welding arc can stably act on the welding part. A stable welding process helps to form a uniform weld. The workpiece is guided by the movement of the straightening plate 210 so that the workpiece is aligned on the workbench 1. When the workpiece is aligned, the angle between the welding electrode and the workpiece can be maintained within a suitable range. When welding fillet welds, if the workpiece is not aligned, the angle between the welding electrode and the workpiece surface may deviate from the ideal 45°, which will cause uneven weld formation and may result in a situation where one side is thick and the other side is thin. Aligning the workpiece can make parameters such as weld width and height more in line with standards, thereby ensuring the appearance quality of the weld.

[0026] The movement of the squaring plate 210 drives the L-shaped plate 302 to move, the movement of the L-shaped plate 302 drives the slide plate 303 to move, the movement of the slide plate 303 drives the spring 2 310 to move, and the movement of the spring 2 310 drives the brush plate 304 to move. The surface of the workpiece is cleaned by the movement of the brush plate 304 to facilitate subsequent welding. The oil stains, rust and impurities on the surface of the workpiece are one of the main reasons for the formation of pores. When welding steel workpieces, if there is oil stains on the surface, the oil stains will decompose and produce gases under the action of high temperature welding. These gases will form pores after entering the molten pool. Cleaning the surface of the workpiece can effectively remove these oil stains and impurities, so that the gas in the molten pool mainly comes from the decomposition of the welding material and the protective gas, reducing the possibility of pore formation, thereby improving the density and quality of the weld. The movement of the brush plate 304 drives the guide plate 1 305 to move. When the guide plate 1 305 moves, it will contact the guide plate 2 306, so that the guide plate 1 305 moves upward, the guide plate 305 moves upward to drive the brush plate 304 to move upward, the brush plate 304 moves to drive the support plate 307 to move, the support plate 307 moves to drive the spring 308 to move, the spring 308 moves to drive the knocking rod 309 to move, when the device is reset, the knocking rod 309 will move downward to knock the surface of the workpiece, during the welding process, the workpiece will generate welding stress due to local heating, when the weld cools, the weld metal shrinkage will be constrained by the surrounding parent material, thus forming tension, when welding a thick plate structure, the shrinkage of the weld area will generate greater stress inside the workpiece, knocking the workpiece surface can make the weld metal produce a certain degree of plastic deformation during the cooling process, thereby reducing the welding stress, this plastic deformation can offset part of the tensile stress caused by the shrinkage of the weld, reduce the risk of cracks in the workpiece after welding, and at the same time detect whether the workpiece has welding leakage or lack of welding.

[0027] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the protective device 4 includes a connecting plate 1 401, a hinged rod 2 402, a guard plate 403, an observation window 404, and a connecting plate 2 405. The connecting plate 1 401 is fixedly connected to the rear of the slide plate 303, the hinged rod 2 402 is hinged to the inner wall of the connecting plate 1 401, the guard plate 403 is fixedly installed on the top of the workbench 1, and the observation window 404 is hinged to the inner wall of the guard plate 403. The movement of the slide plate 303 drives the connecting plate 1 401 to move, and the movement of the connecting plate 1 401 drives the hinged rod 2 402 to move. When the hinged rod 2 402 moves, The second connecting plate 405 will be pulled to move the second connecting plate 405 backwards, and the observation window 404 will be moved by the movement of the second connecting plate 405 backwards. The movement of the observation window 404 can prevent the phenomenon of glare from strong light during welding. The strong light generated during welding includes a variety of harmful light such as ultraviolet light, infrared light and visible light. Ultraviolet light can damage the cornea and conjunctiva of the eyes, causing photoelectric conjunctivitis. The patient will feel severe eye pain, photophobia, tearing and eyelid spasm, etc. Infrared light is mainly thermal radiation. Long-term exposure may cause clouding of the eye lens and formation of cataracts. Preventing glare from strong light can effectively avoid these eye problems. Disease, protect the normal physiological structure and function of the eyes, prevent welding slag splashing through the guard plate 403, the connecting plate 2 405 is fixedly connected to the front of the observation window 404, the protective device 4 also includes a moving plate 406, a spring 3 407, a roller 408, a filter barrel 409, and a support plate 2 410. The moving plate 406 and the spring 3 407 are fixedly connected to the top of the workbench 1, the moving plate 406 is fixedly connected to the front of the spring 3 407, the roller 408 is in contact with the moving plate 406, the filter barrel 409 is fixedly connected to the top of the roller 408, and the support plate 2 410 is fixedly connected to the concave plate 2 30 1, the inner wall of the supporting plate 2 410 is rotatably connected with the filter barrel 409, the connecting plate 2 405 is hinged with the hinge rod 2 402, and the moving plate 406 is squeezed by the observation window 404 to make the moving plate 406 move backward, and the moving plate 406 moves backward and is reset by the spring 3 407, and the moving plate 406 moves and drives the roller 408 to rotate through the friction force, and the rotation of the roller 408 drives the filter barrel 409 to rotate, so that the activated carbon in the filter barrel 409 rotates, so that the contact area between the activated carbon and the air is increased, so that the activated carbon absorbs harmful gases during welding, and ensures the breathing safety of the workers.

[0028] Working principle: The movement of the slide plate 303 drives the connection plate 1 401 to move, and the movement of the connection plate 1 401 drives the movement of the hinge rod 2 402. When the hinge rod 2 402 moves, it pulls the connection plate 2 405, so that the connection plate 2 405 moves backward, and the connection plate 2 405 moves backward to drive the observation window 404 to move. The movement of the observation window 404 prevents the glare of strong light during welding. The strong light generated during welding contains multiple harmful light such as ultraviolet rays, infrared rays and visible light. Ultraviolet rays can damage the cornea and conjunctiva of the eyes, causing photoelectric conjunctivitis. The patient will feel severe eye pain, photophobia, tearing and eyelid spasm, etc. Infrared rays are mainly thermal radiation, and long-term exposure It may cause clouding of the lens of the eye and formation of cataracts. Preventing glare from strong light can effectively avoid these eye diseases and protect the normal physiological structure and function of the eyes. The guard plate 403 is used to prevent welding slag from splashing. The observation window 404 is moved to squeeze the movable plate 406, so that the movable plate 406 moves backward. The movable plate 406 moves backward and is reset by spring three 407. The movement of the movable plate 406 drives the roller 408 to rotate through friction. The rotation of the roller 408 drives the filter barrel 409 to rotate, so that the activated carbon in the filter barrel 409 rotates, thereby increasing the contact area between the activated carbon and the air, so that the activated carbon absorbs harmful gases during welding, and ensures the breathing safety of the workers.

[0029] The present invention provides a laser welding machine for processing agricultural machinery metal parts. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A laser welding machine for processing agricultural machinery metal parts, comprising a workbench (1), characterized in that: A clamping device (2) is provided on the top of the workbench (1), a cleaning device (3) is provided on the top of the workbench (1), a protective device (4) is provided on the top, and a welding machine (5) is fixedly installed on the top of the workbench (1); The clamping device (2) comprises a support plate (201), a cylinder (202), a loading plate (203), a motor (204), a clamping plate (205), a reciprocating screw rod (206), a fixing plate (207), a hinge rod (208), a fixing plate (209), a squaring plate (210), and a concave plate (211), wherein the support plate (201) is fixedly connected to the inner wall of the workbench (1), the cylinder (202) is fixedly mounted on the top of the support plate (201), the loading plate (203) is fixedly connected to the telescopic end of the cylinder (202), and the motor (204) is fixedly connected to the workbench (1). On the left side of the workbench (1), the reciprocating screw (206) is fixedly connected to the output end of the motor (204), the concave plate 1 (211) is movably connected to the circumferential surface of the reciprocating screw (206), the clamping plate (205) is fixedly connected to the top of the concave plate 1 (211), the fixed plate 1 (207) is fixedly connected to the left side of the clamping plate (205), the hinged rod 1 (208) is hinged to the inner wall of the fixed plate 1 (207), the inner wall of the fixed plate 2 (209) is hinged to the hinged rod 1 (208), and the aligning plate (210) is fixedly connected to the front of the fixed plate 2 (209); The cleaning device (3) comprises a concave plate 2 (301), an L-shaped plate (302), a slide plate (303), a brush plate (304), a guide plate 1 (305), a guide plate 2 (306), a support plate 1 (307), a spring 1 (308), a knocking rod (309), and a spring 2 (310). The concave plate 2 (301) is fixedly connected to the top of the workbench (1), the L-shaped plate (302) is fixedly connected to the top of the aligning plate (210), the slide plate (303) is fixedly connected to the front of the L-shaped plate (302), and the spring 1 (308) is fixedly connected to the top of the aligning plate (210). The second spring (310) is fixedly connected to the bottom of the slide plate (303), the brush plate (304) is fixedly connected to the bottom of the second spring (310), the first guide plate (305) is fixedly connected to the rear of the brush plate (304), the second guide plate (306) is fixedly connected to the front of the alignment plate (210), the first support plate (307) is fixedly connected to the front of the brush plate (304), the first spring (308) is fixedly connected to the bottom of the first support plate (307), and the knocking rod (309) is fixedly connected to the bottom of the first spring (308).

2. The laser welding machine for processing agricultural machinery metal parts according to claim 1, characterized in that: The concave plate 1 (211) is slidably connected to the inner wall of the workbench (1), the bottom of the alignment plate (210) is in contact with the top of the workbench (1), and there are two alignment plates (210), which are symmetrically distributed at the front and rear parts of the workbench (1).

3. The laser welding machine for processing agricultural machinery metal parts according to claim 2, characterized in that: The circumferential surface of the reciprocating screw (206) is rotatably connected to the inner wall of the workbench (1), and the surface of the loading plate (203) is slidably connected to the inner wall of the workbench (1).

4. The laser welding machine for processing agricultural machinery metal parts according to claim 3 is characterized in that: The slide plate (303) is slidably connected to the inner wall of the second concave plate (301), and the right side of the brush plate (304) is in contact with the left side of the second concave plate (301).

5. The laser welding machine for processing agricultural machinery metal parts according to claim 4, characterized in that: The protective device (4) comprises a connecting plate 1 (401), a hinged rod 2 (402), a guard plate (403), an observation window (404), and a connecting plate 2 (405), wherein the connecting plate 1 (401) is fixedly connected to the rear of the slide plate (303), the hinged rod 2 (402) is hinged to the inner wall of the connecting plate 1 (401), the guard plate (403) is fixedly installed on the top of the workbench (1), the observation window (404) is hinged to the inner wall of the guard plate (403), and the connecting plate 2 (405) is fixedly connected to the front of the observation window (404).

6. The laser welding machine for processing agricultural machinery metal parts according to claim 5, characterized in that: The protective device (4) further comprises a movable plate (406), a spring three (407), a roller (408), a filter barrel (409), and a support plate two (410); the movable plate (406) and the spring three (407) are fixedly connected to the top of the workbench (1); the movable plate (406) is fixedly connected to the front of the spring three (407); the roller (408) is in contact with the movable plate (406); the filter barrel (409) is fixedly connected to the top of the roller (408); and the support plate two (410) is fixedly connected to the inner wall of the concave plate two (301).

7. The laser welding machine for processing agricultural machinery metal parts according to claim 6, characterized in that: The inner wall of the second support plate (410) is rotatably connected to the filter barrel (409), and the second connecting plate (405) is hinged to the second hinge rod (402).

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