Laser welding equipment and method for irregular metal parts

Abstract

The invention relates to the technical field of laser welding and discloses laser welding equipment and method for irregular metal parts, the laser welding equipment comprises a laser welding robot, a dust and impurity removing mechanism is mounted at the position, away from an electric control limiting device, of the laser welding robot, and a gas supply mechanism is mounted on the side face of the dust and impurity removing mechanism; according to the automatic welding device for the irregular metal parts, through the arrangement of the detection mechanism and the gas supply mechanism, whether convex points and concave points appear at all welding positions of the irregular metal parts or not can be judged by the analysis unit according to all groups of real-time pressure intensity data; according to the automatic quality inspection device for the irregular metal part welding position, a dust and impurity removal mechanism and a gas supply mechanism are arranged, so that chips can be conveyed into a storage barrel through an adsorption hole, a conveying hole and a telescopic pipe to be stored and managed, and the situation that the chips generated by grinding cause certain pollution to the field working environment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and more particularly to a laser welding device and method for irregular metal parts. Background Art

[0002] Laser welding equipment is one of the devices used for welding irregular metal parts. Common laser welding equipment is mainly composed of laser, optical system, mechanical system, control system, pneumatic system and auxiliary equipment. The specific process of laser welding equipment for welding irregular metal parts is as follows: 1. Laser beam irradiation: The laser beam generated by the laser is focused and guided by the optical system and irradiated on the surface of the workpiece; 2. Material heating and melting: After the laser beam is irradiated on the surface of the workpiece, the surface of the workpiece is rapidly heated to the melting point, and the material begins to melt and form a molten pool; 3. Weld formation: On the molten material, the gas shielded welding wire or the laser beam contacts the workpiece, generating an arc, melting the workpiece and forming a weld;

[0003] During the welding process of irregular metal parts, if the welding parts are uneven, the irregular metal parts after welding will have the following problems: 1. Deterioration of welding quality: uneven and irregular welds, rough corrugations, resulting in an unsmooth transition between the weld and the parent material, and poor quality of the welded joint; 2. Uneven strength of welded joints: Uneven welds will lead to uneven strength distribution of welded joints, prone to cracks and looseness, and reduce the overall strength of the welded structure; 3. Stress concentration: The unevenness of welds may lead to stress concentration, increasing the risk of damage to the welded structure when it is under load; 4. Performance degradation: The unsightly welds and poor bonding may affect the performance of welded joints, such as fatigue strength and impact resistance;

[0004] However, in the prior art, manual quality inspection is mainly used to determine whether the welding parts of irregular metal parts are uneven. Therefore, this process requires a certain amount of manpower waste. At the same time, if there are omissions in the manual quality inspection, the irregular metal parts after welding will have the above-mentioned situation, which will cause certain economic losses. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a laser welding device and method for irregular metal parts to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: a laser welding device for irregular metal parts, including a laser welding apparatus, the laser welding apparatus including a base, a protective cover being mounted on the top of the base, an electric control limiting device being mounted at the middle position of the top of the base, a laser welding robot being mounted at a position on the top of the base close to the electric control limiting device, a dust and impurity removing mechanism being mounted at a position on the laser welding robot away from the electric control limiting device, a gas supply mechanism being mounted on the side of the dust and impurity removing mechanism, a detection mechanism being mounted at one end of the dust and impurity removing mechanism, and an automatic grinding device being mounted on the outer wall of the bottom of the detection mechanism;

[0007] It includes a pressure acquisition module, an analysis unit, an execution end, and a wireless signal transmitting device.

[0008] Further, the detection mechanism includes a connecting bracket, a lifting cabin being mounted on the side of the connecting bracket, a slider being movably sleeved on the inner wall of the lifting cabin, an electric control lifting column being mounted at the bottom of the slider, the input current of the electric control lifting column driving the slider to move inside the lifting cabin, and a pressure cabin being mounted on the side of the slider;

[0009] A pressure sensor is mounted on the inner wall of the top of the pressure cabin, the pressure sensor collecting the pressure data inside the pressure cabin and transmitting it to the pressure acquisition module, a pressing plate being movably sleeved on the inner wall of the bottom of the pressure cabin, and a first spring being mounted on the top of the pressing plate.

[0010] Further, the automatic grinding device includes a support frame, a manipulator being mounted on the side of the support frame, and an electric control grinding device being mounted at a position on the manipulator away from the support frame.

[0011] Further, the dust and impurity removing mechanism includes a hollow frame, a telescopic plate being movably sleeved on the inner wall of the hollow frame, the telescopic plate being composed of a plurality of auxiliary hollow plates sleeved together, a second spring being mounted on the inner wall of the bottom of the telescopic plate, and the top of the second spring being mounted on the inner wall of the hollow frame;

[0012] A telescopic tube is connected through the bottom of the telescopic plate, a storage cylinder being mounted at a position on the telescopic tube close to the hollow frame, the storage cylinder being mounted on the outer wall of the hollow frame, a wind power providing device being mounted at the bottom of the storage cylinder, an air purification device being mounted on the inner wall of the wind power providing device, a filter screen being mounted on the inner wall of the storage cylinder at a position close to the wind power providing device for isolating impurities from entering the inside of the wind power providing device, a protective plate being mounted at the bottom of the telescopic plate, a conveying hole being opened on the inner wall of the top of the protective plate, and the bottom of the telescopic tube being mounted in the conveying hole, and an adsorption hole being opened on the inner wall of the protective plate.

[0013] Further, the gas supply mechanism includes an air pump. A first Y-shaped pipe is installed at the output end of the air pump. Solenoid valves are installed on the inner walls at both ends of the first Y-shaped pipe. A second Y-shaped pipe is installed at one end of the first Y-shaped pipe. A first delivery pipe is installed at the other end of the first Y-shaped pipe. A main delivery pipe is installed at a position of the first delivery pipe away from the first Y-shaped pipe. An auxiliary delivery pipe is installed at the bottom of the main delivery pipe.

[0014] Further, the air pressure acquisition module receives the real-time pressure data collected by each group of air pressure sensors and transmits it to the analysis unit. The analysis unit simulates the simulated pressure data generated by each group of air pressure sensors when the irregular metal part is in a normal welding state, and integrates the simulated pressure data of each group to form a threshold range. The analysis unit compares the real-time pressure data of each group with the threshold range. When a group of real-time pressure data is greater than the threshold range, it is determined that there is a convex point in this area of the irregular metal part. The analysis unit sends a first execution instruction to the execution end. When a group of real-time pressure data is less than the threshold range, it is determined that there is a concave point in this area of the irregular metal part. The analysis unit sends a second execution instruction to the execution end;

[0015] When the execution end receives the first execution instruction, the execution end controls the automatic grinding device to perform grinding operations on the convex points of the irregular metal part. When the execution end receives the second execution instruction, the execution end controls the wireless signal transmitting device to remotely send a warning message to the staff, reminding the staff to arrive at the scene for inspection.

[0016] Further, the analysis unit performs denoising on the real-time pressure data by using the neighborhood averaging method and performs data edge processing by using the Laplace operator. The calculation formula of the neighborhood averaging method is , where is the data signal, is the noise signal, N is the total number of data points, s is the number of noise points, i is the current value of the data signal, and j is the current time of the data signal.

[0017] The technical effects and advantages of the present invention:

[0018] 1. By providing a detection mechanism and a gas supply mechanism, the present invention is conducive to the gas supply mechanism generating compressed air and delivering it to the inside of the air pressure chamber, driving the pressing plate to move towards the bottom of the air pressure chamber. The electric control lifting column inputs current to drive the slider and the air pressure chamber to move towards the welding position of the irregular metal part. When the pressing plate contacts the welding position of the irregular metal part, multiple groups of air pressure sensors generate multiple groups of pressure data and transmit it to the air pressure acquisition module. The air pressure acquisition module transmits the multiple groups of pressure data to the analysis unit. The analysis unit determines whether there are convex points and concave points at each welding position of the irregular metal part according to the real-time pressure data of each group, so as to achieve the effect of automatic quality inspection of the welding position of the irregular metal part.

[0019] 2. The present invention is provided with a dust and impurity removal mechanism and a gas supply mechanism, which is conducive to the gas supply mechanism generating compressed air and transporting it into the hollow frame and the inside of the telescopic plate, driving the telescopic plate to be in a stretched state, so as to drive the protective plate to reach the optimal adsorption height. At the same time, the wind supply device generates adsorption air and transports it to the surface of the irregular metal welding joint through the storage cylinder, the telescopic pipe, the delivery hole and the adsorption hole, which is conducive to recycling the smoke and waste gas generated during the welding process. The smoke and waste gas recovered inside the storage cylinder are eliminated under the action of the air purification device, avoiding causing certain pollution to the on-site working environment. When the automatic grinding device performs grinding operations, the adsorption air generated by the wind supply device drives the debris generated by grinding the irregular metal parts to be transported into the storage cylinder through the adsorption hole, the delivery hole and the telescopic pipe for storage management, avoiding the debris generated by grinding from causing certain pollution to the on-site working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of one side of the overall structure of the dust and impurity removal mechanism of the present invention.

[0022] Figure 3 It is a schematic diagram of the other side of the overall structure of the dust and impurity removal mechanism of the present invention.

[0023] Figure 4 It is a schematic sectional view of the overall structure of the lifting cabin of the present invention.

[0024] Figure 5 It is a schematic sectional view of the overall structure of the air pressure cabin of the present invention.

[0025] Figure 6 It is a schematic sectional view of a partial structure of the hollow frame of the present invention.

[0026] Figure 7 It is a schematic diagram of the overall structure of the protective plate of the present invention.

[0027] The reference numerals are: 1, laser welding device; 101, base; 102, protective cover; 103, electric control limit device; 104, laser welding robot; 2, detection mechanism; 201, air pressure chamber; 202, lifting chamber; 203, connecting bracket; 204, electric control lifting column; 205, slider; 206, first spring; 207, air pressure sensor; 208, pressing plate; 3, automatic grinding device; 301, support frame; 302, manipulator; 303, electric control grinding device; 4, dust removal and impurity removal mechanism; 401, hollow frame; 402, telescopic plate; 403, protective plate; 404, storage cylinder; 405, wind power providing device; 406, second spring; 407, telescopic tube; 408, conveying hole; 409, adsorption hole; 5, gas providing mechanism; 501, air pump; 502, first Y-shaped tube; 503, second Y-shaped tube; 504, main conveying pipe; 505, auxiliary conveying pipe; 506, first conveying pipe. Detailed implementation manners

[0028] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples, and the laser welding equipment and method for irregular metal parts involved in the present invention are not limited to the various structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Referring to Figures 1 to 2 As shown, the present invention provides a laser welding equipment for irregular metal parts, including a laser welding device 1. The laser welding device 1 includes a base 101. A protective cover 102 is installed on the top of the base 101. An electric control limit device 103 is installed at the middle position of the top of the base 101. A laser welding robot 104 is installed at a position on the top of the base 101 close to the electric control limit device 103. A dust removal and impurity removal mechanism 4 is installed at a position on the laser welding robot 104 away from the electric control limit device 103. A gas providing mechanism 5 is installed on the side of the dust removal and impurity removal mechanism 4. A detection mechanism 2 is installed at one end of the dust removal and impurity removal mechanism 4. An automatic grinding device 3 is installed on the outer wall of the bottom of the detection mechanism 2;

[0030] It includes a air pressure acquisition module, an analysis unit, an execution end, and a wireless signal transmitting device.

[0031] In the embodiments of the present application, the specific working process of this part of the embodiments is as follows: The irregular metal part is placed on the surface of the electric control limiting device 103 for clamping and limiting operations. After the limiting is completed, the laser welding robot 104 performs welding operations on the irregular metal part. During the welding process, the dust and impurity removal mechanism 4 performs recovery operations on the waste gas and smoke generated during welding. When the analysis unit determines that there is a protruding position on the irregular metal part, the execution end controls the automatic grinding device 3 to perform grinding operations on the protrusion.

[0032] Referring to Figures 1 to 5 As shown, the present invention provides a laser welding device for irregular metal parts. The detection mechanism 2 includes a connecting bracket 203. A lifting cabin 202 is installed on the side of the connecting bracket 203. A slider 205 is movably sleeved on the inner wall of the lifting cabin 202. An electric control lifting column 204 is installed at the bottom of the slider 205. The electric control lifting column 204 inputs current to drive the slider 205 to move inside the lifting cabin 202. A pneumatic cabin 201 is installed on the side of the slider 205.

[0033] A pressure sensor 207 is installed on the inner wall of the top of the pneumatic cabin 201. The pressure sensor 207 collects the pressure data inside the pneumatic cabin 201 and transmits it to the pressure acquisition module. A pressing plate 208 is movably sleeved on the inner wall of the bottom of the pneumatic cabin 201. A first spring 206 is installed on the top of the pressing plate 208.

[0034] A plurality of isolation plates are installed inside the pneumatic cabin 201, which is beneficial to dividing the pneumatic cabin 201 into multiple isolation spaces, and is beneficial for the analysis unit to judge whether each area of the welding part of the irregular metal part is in a normal welding state by analyzing the changes in the pressure data generated by each pressure sensor 207.

[0035] In the embodiments of the present application, the specific working process of this part of the embodiments is as follows: After the clamping and limiting of the irregular metal part is completed, the gas supply mechanism 5 generates compressed air and transports it into the pneumatic cabin 201, driving the pressing plate 208 to move towards the bottom of the pneumatic cabin 201. The electric control lifting column 204 inputs current to drive the slider 205 and the pneumatic cabin 201 to move towards the welding part of the irregular metal part. When the pressing plate 208 contacts the welding part of the irregular metal part, a plurality of pressure sensors 207 generate a plurality of pressure data and transmit it to the pressure acquisition module. The pressure acquisition module transmits the plurality of pressure data to the analysis unit. The analysis unit judges whether there are convex points and concave points at each welding part of the irregular metal part according to the real-time pressure data of each group, so as to achieve the effect of automatic quality inspection of the welding part of the irregular metal part.

[0036] Referring to Figure 2As shown, the present invention provides a laser welding device for irregular metal parts. The automatic grinding device 3 includes a support frame 301. A manipulator 302 is installed on the side of the support frame 301, and an electric control grinding device 303 is installed at a position where the manipulator 302 is away from the support frame 301.

[0037] In the embodiment of the present application, the specific working process of this part of the application embodiment is as follows: When the analysis unit determines that there are bumps in some areas of the irregular metal part, the execution end controls the manipulator 302 and the electric control grinding device 303 to input corresponding currents, and grinds the bump positions at the welding part of the irregular metal part to ensure the normal welding operation of the irregular metal part.

[0038] Refer to Figures 2 to 3 and Figures 6 to 7 As shown, the present invention provides a laser welding device for irregular metal parts. The dust removal and impurity removal mechanism 4 includes a hollow frame 401. A telescopic plate 402 is movably sleeved on the inner wall of the hollow frame 401. The telescopic plate 402 is composed of a plurality of groups of auxiliary hollow plates sleeved. A second spring 406 is installed on the inner wall of the bottom of the telescopic plate 402, and the top of the second spring 406 is installed on the inner wall of the hollow frame 401;

[0039] A telescopic tube 407 is connected through the bottom of the telescopic plate 402. A storage cylinder 404 is installed at a position where the telescopic tube 407 is close to the hollow frame 401. The storage cylinder 404 is installed on the outer wall of the hollow frame 401. A wind providing device 405 is installed at the bottom of the storage cylinder 404. An air purification device is installed on the inner wall of the wind providing device 405. A filter screen is installed on the inner wall of the storage cylinder 404 near the wind providing device 405 to isolate impurities from entering the interior of the wind providing device 405. A protective plate 403 is installed at the bottom of the telescopic plate 402. A conveying hole 408 is opened on the inner wall of the top of the protective plate 403, and the bottom of the telescopic tube 407 is installed in the conveying hole 408. An adsorption hole 409 is opened on the inner wall of the protective plate 403.

[0040] The storage cylinder 404 is installed on the outer wall of the hollow frame 401 through conventional bolt assemblies.

[0041] The adsorption hole 409 opened on the inner wall of the protective plate 403 is in an inclined state, which is beneficial to adsorbing air and transporting it to the surface of the irregular metal, facilitating the recovery of grinding debris, welding fumes, and waste gas.

[0042] In the embodiment of the present application, the specific working process of this part of the application embodiment is as follows: When welding an irregular metal part, the gas supply mechanism 5 generates compressed air and transports it to the inside of the hollow frame 401 and the telescopic plate 402, driving the telescopic plate 402 to be in a stretched state, so as to drive the protective plate 403 to reach the optimal adsorption height. At the same time, the wind supply device 405 generates adsorption air and transports it to the surface of the irregular metal welding area through the storage cylinder 404, the telescopic pipe 407, the delivery hole 408, and the adsorption hole 409, which is beneficial to the recovery operation of the smoke and waste gas generated during the welding process. The smoke and waste gas recovered inside the storage cylinder 404 are eliminated under the action of the air purification device to avoid causing certain pollution to the on-site working environment. When the automatic grinding device 3 performs grinding operations, the adsorption air generated by the wind supply device 405 drives the debris generated by grinding the irregular metal part to be transported to the inside of the storage cylinder 404 through the adsorption hole 409, the delivery hole 408, and the telescopic pipe 407 for storage management, avoiding the debris generated by grinding from causing certain pollution to the on-site working environment.

[0043] Referring to Figure 3 As shown, the present invention provides a laser welding device for irregular metal parts. The gas supply mechanism 5 includes an air pump 501. The output end of the air pump 501 is equipped with a first Y-shaped pipe 502. Solenoid valves are installed on the inner walls at both ends of the first Y-shaped pipe 502. One end of the first Y-shaped pipe 502 is equipped with a second Y-shaped pipe 503. The other end of the first Y-shaped pipe 502 is equipped with a first delivery pipe 506. The first delivery pipe 506 is equipped with a main delivery pipe 504 at a position far from the first Y-shaped pipe 502. The bottom of the main delivery pipe 504 is equipped with an auxiliary delivery pipe 505.

[0044] In the embodiment of the present application, the specific working process of this part of the application embodiment is as follows: The compressed air and adsorption force generated by the air pump 501 are transported to the dust removal and impurity removal mechanism 4 through the first Y-shaped pipe 502 and the second Y-shaped pipe 503, driving the telescopic plate 402 to perform stretching and contracting operations. The compressed air and adsorption force generated by the air pump 501 are transported to the inside of the detection mechanism 2 through the first Y-shaped pipe 502, the first delivery pipe 506, the main delivery pipe 504, and the auxiliary delivery pipe 505, driving the extrusion plate 208 to move to the corresponding position.

[0045] Referring to Figures 1 to 7As shown, the present invention provides a laser welding device for irregular metal parts. The air pressure acquisition module receives the real-time pressure data collected by each group of air pressure sensors 207 and transmits it to the analysis unit. When the analysis unit simulates the normal welding state of the irregular metal parts, it generates simulated pressure data for each group of air pressure sensors 207 and integrates the simulated pressure data of each group to form a threshold range. The analysis unit compares the real-time pressure data of each group with the threshold range. When a group of real-time pressure data is greater than the threshold range, it is determined that there is a convex point in this area of the irregular metal part, and the analysis unit sends a first execution instruction to the execution end. When a group of real-time pressure data is less than the threshold range, it is determined that there is a concave point in this area of the irregular metal part, and the analysis unit sends a second execution instruction to the execution end;

[0046] When the execution end receives the first execution instruction, the execution end controls the automatic grinding device 3 to perform grinding operations on the convex points of the irregular metal parts. When the execution end receives the second execution instruction, the execution end controls the wireless signal transmitting device to remotely send a warning message to the staff, reminding the staff to arrive at the scene for inspection.

[0047] The analysis unit denoises the real-time pressure data by the neighborhood averaging method and performs data edge processing using the Laplace operator. The calculation formula of the neighborhood averaging method is , where is the data signal, is the noise signal, is the total number of data points, is the number of noise points, is the current value of the data signal, is the current time of the data signal.

[0048] Usage method of the laser welding device for irregular metal parts:

[0049] Step 1: Place the irregular metal part on the surface of the electric control limiting device 103 for clamping and limiting operations. After the limiting is completed, the laser welding robot 104 performs welding operations on the irregular metal part. During the welding process, the dust and impurity removal mechanism 4 performs recovery operations on the waste gas and smoke generated during welding. When the analysis unit determines that there is a protruding position on the irregular metal part, the execution end controls the automatic grinding device 3 to perform grinding operations on the protrusion;

[0050] The compressed air and adsorption force generated by the air pump 501 are transported to the dust and impurity removal mechanism 4 through the first Y-shaped pipe 502 and the second Y-shaped pipe 503, driving the telescopic plate 402 to perform stretching and contraction operations. The compressed air and adsorption force generated by the air pump 501 are transported to the inside of the detection mechanism 2 through the first Y-shaped pipe 502, the first conveying pipe 506, the main conveying pipe 504, and the auxiliary conveying pipe 505, driving the extrusion plate 208 to move to the corresponding position;

[0051] Step 2: After the clamping and limiting of the irregular metal part are completed, the gas supply mechanism 5 generates compressed air and transports it into the internal pressure chamber 201, driving the extrusion plate 208 to move towards the bottom of the pressure chamber 201. The electronically controlled lifting column 204 inputs current to drive the slider 205 and the pressure chamber 201 to move towards the welding area of the irregular metal part. When the extrusion plate 208 contacts the welding area of the irregular metal part, multiple groups of air pressure sensors 207 generate multiple groups of pressure data and transmit them to the air pressure acquisition module. The air pressure acquisition module transmits the multiple groups of pressure data to the analysis unit. The analysis unit determines whether there are bumps and dents at each welding area of the irregular metal part based on the real-time pressure data of each group, thereby achieving the effect of automatic quality inspection of the welding areas of the irregular metal part;

[0052] When the analysis unit determines that there are bumps in some areas of the irregular metal part, the execution end controls the manipulator 302 and the electronically controlled grinding device 303 to input corresponding currents to perform grinding operations on the bump positions at the welding areas of the irregular metal part, ensuring the normal welding operation of the irregular metal part;

[0053] Step 3: When the irregular metal part is welded, the gas supply mechanism 5 generates compressed air and transports it into the hollow frame 401 and the telescopic plate 402, driving the telescopic plate 402 to be in a stretched state, so as to drive the protective plate 403 to reach the optimal adsorption height. At the same time, the wind supply device 405 generates adsorption air and transports it through the storage cylinder 404, the telescopic pipe 407, the delivery hole 408, and the adsorption hole 409 to the surface of the irregular metal welding area, which is beneficial to the recovery operation of the smoke and waste gas generated during the welding process. The smoke and waste gas recovered inside the storage cylinder 404 are eliminated under the action of the air purification device, avoiding certain pollution to the on-site working environment. When the automatic grinding device 3 performs grinding operations, the adsorption air generated by the wind supply device 405 drives the debris generated by the grinding of the irregular metal part to be transported through the adsorption hole 409, the delivery hole 408, and the telescopic pipe 407 into the storage cylinder 404 for storage management, avoiding certain pollution to the on-site working environment caused by the grinding debris.

[0054] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the internal connection of two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0055] In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference may be made to the general design. Without conflict, the same embodiment and different embodiments of the present invention may be combined with each other;

[0056] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A laser welding device for irregular metal parts, comprising a laser welding device (1), characterized in that: The laser welding device (1) comprises a base (101), a protective cover (102) is installed on the top of the base (101), an electric control limit device (103) is installed in the middle of the top of the base (101), a laser welding robot (104) is installed on the top of the base (101) at a position close to the electric control limit device (103), a dust removal and impurity removal mechanism (4) is installed on the laser welding robot (104) at a position away from the electric control limit device (103), a gas supply mechanism (5) is installed on the side of the dust removal and impurity removal mechanism (4), a detection mechanism (2) is installed on one end of the dust removal and impurity removal mechanism (4), and an automatic grinding device (3) is installed on the outer wall of the bottom of the detection mechanism (2); It includes an air pressure collection module, an analysis unit, an execution end and a wireless signal transmitting device.

2. The laser welding device for irregular metal parts according to claim 1, characterized in that: The detection mechanism (2) comprises a connecting bracket (203), a lift cabin (202) is mounted on a side of the connecting bracket (203), a slider (205) is movably sleeved on an inner wall of the lift cabin (202), an electric-controlled lifting column (204) is mounted on the bottom of the slider (205), the electric-controlled lifting column (204) inputs current to drive the slider (205) to move inside the lift cabin (202), and an air pressure cabin (201) is mounted on a side of the slider (205); An air pressure sensor (207) is installed on the inner wall of the top of the air pressure cabin (201), and the air pressure sensor (207) collects pressure data inside the air pressure cabin (201) and transmits it to the air pressure collection module. An extrusion plate (208) is movably sleeved on the inner wall of the bottom of the air pressure cabin (201), and a first spring (206) is installed on the top of the extrusion plate (208).

3. The laser welding device for irregular metal parts according to claim 1, characterized in that: The automatic grinding device (3) comprises a support frame (301), a manipulator (302) is installed on the side of the support frame (301), and the manipulator (302) is installed with an electric-controlled grinding device (303) at a position away from the support frame (301).

4. The laser welding device for irregular metal parts according to claim 1, characterized in that: The dust and impurity removal mechanism (4) comprises a hollow frame (401), the inner wall of the hollow frame (401) being movably sleeved with a telescopic plate (402), the telescopic plate (402) being composed of a plurality of sets of auxiliary hollow plates sleeved together, a second spring (406) being installed on the inner wall at the bottom of the telescopic plate (402), and the top of the second spring (406) being installed on the inner wall of the hollow frame (401); A telescopic tube (407) is connected through the bottom of the telescopic plate (402); a storage cylinder (404) is installed on the telescopic tube (407) at a position close to the hollow frame (401); the storage cylinder (404) is installed on the outer wall of the hollow frame (401); a wind force providing device (405) is installed on the bottom of the storage cylinder (404); an air purification device is installed on the inner wall of the wind force providing device (405); a filter is installed on the inner wall of the storage cylinder (404) at a position close to the wind force providing device (405) for isolating impurities from entering the wind force providing device (405); a protective plate (403) is installed on the bottom of the telescopic plate (402); a conveying hole (408) is opened on the inner wall of the top of the protective plate (403); the bottom of the telescopic tube (407) is installed in the conveying hole (408); and an adsorption hole (409) is opened on the inner wall of the protective plate (403).

5. The laser welding device for irregular metal parts according to claim 1, characterized in that: The gas supply mechanism (5) comprises an air pump (501), a first Y-shaped tube (502) being installed at the output end of the air pump (501), solenoid valves being installed on the inner walls of both ends of the first Y-shaped tube (502), a second Y-shaped tube (503) being installed at one end of the first Y-shaped tube (502), a first delivery tube (506) being installed at the other end of the first Y-shaped tube (502), a main delivery tube (504) being installed at a position of the first delivery tube (506) away from the first Y-shaped tube (502), and an auxiliary delivery tube (505) being installed at the bottom of the main delivery tube (504).

6. The laser welding equipment for irregular metal parts according to claim 2, characterized in that: The air pressure collection module receives the real-time pressure data collected by each group of air pressure sensors (207) and transmits it to the analysis unit. The analysis unit simulates the simulated pressure data generated by each group of air pressure sensors (207) when the irregular metal part is in a normal welding state, and integrates each group of simulated pressure data to form a threshold range. The analysis unit compares each group of real-time pressure data with the threshold range. When a group of real-time pressure data is greater than the threshold range, it is determined that a convex point occurs in the region of the irregular metal part, and the analysis unit sends a first execution instruction to the execution end. When a group of real-time pressure data is less than the threshold range, it is determined that a concave point occurs in the region of the irregular metal part, and the analysis unit sends a second execution instruction to the execution end. When the execution end receives the first execution instruction, the execution end controls the automatic grinding device (3) to perform grinding operations on the convex points of the irregular metal part. When the execution end receives the second execution instruction, the execution end controls the wireless signal transmitting device to remotely send an early warning message to the staff, reminding the staff to arrive at the site for inspection.

7. The laser welding device for irregular metal parts according to claim 6, characterized in that: The analysis unit performs denoising on the real-time pressure data using the neighborhood averaging method and uses the Laplace operator to perform data edge processing. The calculation formula of the neighborhood averaging method is: , where is the data signal, is the noise signal, is the total number of data points, is the number of noise points, is the current value of the data signal, The current time of the data signal.

8. The method for using the laser welding equipment for irregular metal parts according to any one of claims 1 to 7, characterized in that: The steps include: Step 1: The irregular metal part is placed on the surface of the electric control limit device (103) for clamping and limit operation. After the limit operation is completed, the laser welding robot (104) performs welding operation on the irregular metal part. During the welding process, the dust removal and impurity removal mechanism (4) recovers the exhaust gas and smoke generated by the welding. When the analysis unit determines that the irregular metal part has a protruding position, the execution end controls the automatic grinding device (3) to grind the protrusion; The compressed air and adsorption force generated by the air pump (501) are transported to the dust and impurity removal mechanism (4) through the first Y-shaped tube (502) and the second Y-shaped tube (503), driving the telescopic plate (402) to perform stretching and contraction operations. The compressed air and adsorption force generated by the air pump (501) are transported to the inside of the detection mechanism (2) through the first Y-shaped tube (502), the first delivery tube (506), the main delivery tube (504) and the auxiliary delivery tube (505), driving the extrusion plate (208) to move to a corresponding position. Step 2: After the clamping and limiting of the irregular metal part is completed, the gas supply mechanism (5) generates compressed air and transmits it to the inside of the air pressure chamber (201), driving the extrusion plate (208) to move toward the bottom of the air pressure chamber (201), and the electric control lifting column (204) inputs current to drive the slider (205) and the air pressure chamber (201) to move toward the welding position of the irregular metal part. When the extrusion plate (208) contacts the welding position of the irregular metal part, the multiple groups of air pressure sensors (207) generate multiple groups of pressure data and transmit them to the air pressure collection module. The air pressure collection module transmits the multiple groups of pressure data to the analysis unit. The analysis unit determines whether convex points and concave points appear at each welding position of the irregular metal part according to each group of real-time pressure data. When the analysis unit determines that a convex point appears in a part of the irregular metal part, the execution end controls the manipulator (302) and the electric-controlled grinding device (303) to input a corresponding current to grind the convex point position at the welding part of the irregular metal part, thereby ensuring that the irregular metal part can be welded normally; Step 3: When the irregular metal parts are welded, the gas supply mechanism (5) generates compressed air and delivers it to the hollow frame (401) and the telescopic plate (402), driving the telescopic plate (402) to be in a stretched state, so as to drive the protective plate (403) to reach an optimal adsorption height. At the same time, the wind power supply device (405) generates adsorption air and delivers it to the surface of the irregular metal welding part through the storage cylinder (404), the telescopic tube (407), the delivery hole (408) and the adsorption hole (409), which is conducive to the recovery of smoke and waste gas generated during the welding process. The smoke and waste gas recovered in the storage cylinder (404) are eliminated and processed under the action of the air purification device to avoid causing certain pollution to the on-site working environment. When the automatic grinding device (3) performs the grinding operation, the adsorption air generated by the wind power supply device (405) drives the debris generated by the grinding of the irregular metal parts to be delivered to the storage cylinder (404) through the adsorption hole (409), the delivery hole (408) and the telescopic tube (407) for storage and management.

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