Laser welding equipment

Abstract

The utility model discloses laser welding equipment, which comprises an equipment main body part, a laser emitting part, a blocking structure and a waste residue speed reduction part, the laser emitting part is connected with the equipment main body part, the laser emitting part is provided with a light passing channel for laser beams emitted by the equipment main body part to pass through, and the blocking structure and the waste residue speed reduction part are arranged in the light passing channel; the waste residue speed reduction part is located between the blocking structure and the equipment main body part, the blocking structure is provided with a to-be-punctured area or a to-be-expanded hole, the to-be-punctured area is used for laser beam puncture to form a laser avoiding hole, and the to-be-expanded hole is used for laser beam edge expansion to form a laser avoiding hole; the waste residue speed reduction part comprises a conical barrel-shaped structure, a smaller first end opening of the conical barrel-shaped structure faces the to-be-punctured area or the to-be-expanded hole, and a larger second end opening of the waste residue speed reduction part is opposite to the to-be-punctured area or the to-be-expanded hole. According to the scheme, the problem that waste residues intrude into the deeper area of the laser projection channel in the welding process can be well relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser processing equipment design, and specifically relates to laser welding equipment. Background Art

[0002] Laser welding equipment is a commonly used welding equipment and is widely used in product manufacturing in many fields. In the specific welding process, the laser welding equipment will emit a laser beam from the laser emitting component, and at the same time, the welding wire is transported to the welding point. The laser beam melts the welding wire at high temperature to achieve welding.

[0003] However, the welding process will produce waste slag, which will penetrate into the interior of the laser welding equipment through the laser emitting components, and then it is easier to damage the more valuable components inside the laser welding equipment, and ultimately lead to a shorter life of the laser welding equipment. Utility Model Content

[0004] The utility model discloses a laser welding device, which aims to solve the problem that the laser welding device involved in the related technology is easy to be invaded by waste slag during welding, resulting in a short service life.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] In a first aspect, the embodiment of the utility model discloses a laser welding device, the disclosed laser welding device comprises a device main body, a laser emitting component, a blocking structure and a waste slag deceleration unit, wherein:

[0007] The laser emitting component is connected to the main body of the device, and the laser emitting component is provided with a light passage for the laser beam emitted by the main body of the device to pass through, and the blocking structure and the waste residue deceleration unit are arranged in the light passage;

[0008] The waste slag deceleration part is located between the blocking structure and the main body of the equipment. The blocking structure is provided with a to-be-punched area or a to-be-expanded hole. The to-be-punched area is used for the laser beam to punch through to form a laser avoidance hole. The to-be-expanded hole is used for the laser beam to expand its edge to form the laser avoidance hole.

[0009] The waste slag deceleration part comprises a conical cylindrical structure, wherein a first smaller port of the conical cylindrical structure faces the area to be penetrated or the hole to be expanded, and a second larger port of the waste slag deceleration part faces away from the area to be penetrated or the hole to be expanded.

[0010] The technical solution adopted by the utility model can achieve the following technical effects:

[0011] The laser welding equipment disclosed in the embodiment of the utility model adds a blocking structure and a waste slag speed reduction unit in the light passage of the laser emitting component, and the waste slag speed reduction unit is located between the blocking structure and the main body of the equipment, so that during the welding process, the waste slag that invades the laser emitting component can be partially blocked by the blocking structure, thereby alleviating the invasion of the waste slag into the light passage. At the same time, a part of the waste slag may continue to invade through the blocking structure, and this part of the waste slag can be decelerated while passing through the waste slag speed reduction unit to avoid invading deeper. It can be seen that the laser welding equipment disclosed in the embodiment of the utility model alleviates the problem of waste slag invasion through the cooperation of the blocking structure and the waste slag speed reduction unit, thereby avoiding the problem of waste slag invading the main body of the equipment and damaging the more valuable components in the main body of the equipment.

[0012] In addition, in the laser welding equipment disclosed in the embodiment of the utility model, the blocking structure is provided with an area to be penetrated and a hole to be expanded, so that the laser beam generated by the main body of the equipment can penetrate or expand the hole during welding, and finally form a laser avoidance hole that can allow the laser beam to pass through without forming an aperture that is too large. This structure can avoid the problem of opening a laser avoidance hole with a larger aperture. This structure can avoid the problem of using other means to open a laser avoidance hole, which easily leads to a larger aperture. If the aperture of the laser avoidance hole is not too large, the blocking structure can play a greater role in blocking waste slag, and finally can better alleviate the problem of waste slag intrusion.

[0013] It can be seen that the laser welding equipment disclosed in the embodiment of the utility model can better alleviate the problem of slag intrusion during the welding process through the coordination of the blocking of the blocking structure and the deceleration of the slag speed reduction part. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the first structure of the laser welding equipment disclosed in the embodiment of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the first structure of the laser welding equipment disclosed in the embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of a blocking structure disclosed in an embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of another blocking structure disclosed in an embodiment of the utility model;

[0018] Figure 5 It is a schematic diagram of the blocking structure disclosed in the embodiment of the utility model after the laser avoidance hole is formed;

[0019] Figure 6This is a second structural schematic diagram of the laser welding equipment disclosed in the embodiment of the utility model;

[0020] Figure 7 This is a third structural schematic diagram of the laser welding equipment disclosed in the embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 10- Equipment main body,

[0023] 20-laser emitting component, 21-light passage, 22-laser emitting tube, 221-tube cavity, 222-connecting protrusion, 23-laser nozzle, 231-tube nozzle inner cavity, 232-connecting groove, 233-waste residue collection space, 234-waste residue drop hole, 235-waste residue dumping port, 24-air outlet channel,

[0024] 30-blocking structure, 31-area to be penetrated, 32-hole to be expanded, 33-laser avoidance hole, 34-peripheral area,

[0025] 40-waste slag speed reduction part, 41-conical cylindrical structure, 411-outer cone surface, 412-inner cone surface, 42-fixed installation part, 421-negative pressure channel,

[0026] 51-air nozzle, 52-gas pipeline. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] The technical solutions disclosed in various embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0029] Please refer to Figures 1 to 7 The embodiment of the utility model discloses a laser welding device, which includes a device main body 10, a laser emitting component 20, a blocking structure 30 and a waste slag deceleration part 40.

[0030] The device body 10 is the main structure of the laser welding device, and the device body 10 can generate a laser beam during welding. In a specific welding process, the laser beam generated by the device body 10 can be projected onto the welding point to provide the temperature required for welding. At the same time, as the main structure, the device body 10 is also used as an installation base for directly or indirectly installing other components of the laser welding device.

[0031] The laser emitting component 20 is a component for realizing the emission of the laser beam. The laser emitting component 20 is provided with a light passage 21 for the laser beam emitted by the device main body 10 to pass through. The laser emitting component 20 is connected to the device main body 10, and the laser beam generated by the device main body 10 during welding will be emitted into the laser emitting component 20 and projected to the welding position through the light passage 21.

[0032] In order to facilitate the replacement or maintenance of the laser emitting component 20 and the device main body 10, the laser emitting component 20 and the device main body 10 can be connected by a detachable connection. Specifically, the laser emitting component 20 and the device main body 10 can be detachably connected by means of threaded connection, connector connection, plug-in connection, etc. In this case, once the laser emitting component 20 or the device main body 10 needs to be replaced or repaired, the user can directly disassemble it and replace it separately, thereby conveniently and flexibly replacing it, avoiding the replacement of the laser emitting component 20 and the device main body 10 as a whole, which is conducive to reducing the cost of replacement or maintenance. In other embodiments, the laser emitting component 20 and the device main body 10 can also be connected by non-detachable means such as welding and bonding.

[0033] The blocking structure 30 is arranged in the light passage 21, and is used to play the role of blocking waste residue. The waste residue deceleration unit 40 is also arranged in the light passage 21. Compared with the waste residue deceleration unit 40, the blocking structure 30 is farther away from the device main body 10, that is, the waste residue deceleration unit 40 is located between the blocking structure 30 and the device main body 10, and the blocking structure 30 preferentially blocks the waste residue invading the laser emitting component 20.

[0034] In the embodiment of the utility model, the blocking structure 30 may be a blocking sheet, a blocking block, a blocking ring, etc., and the embodiment of the utility model does not limit the specific shape of the blocking structure 30. Specifically, the blocking structure 30 may include a region to be penetrated 31, or the blocking structure 30 may be provided with a hole to be expanded 32. The region to be penetrated 31 is used for the laser beam projected from the device main body 10 into the laser emitting component 20 to penetrate to form a laser avoidance hole 33. The hole to be expanded 32 is used for the laser beam to further penetrate the edge to form a laser avoidance hole 33 with a larger aperture.

[0035] In the case where the blocking structure 30 includes the area to be penetrated 31, the blocking structure 30 may be a structural component without openings, and can block the light passage 21. Since the blocking structure 30 of the laser welding device with such a structure can block the light passage, it can play a blocking role before the user uses it (for example, during the stages of manufacturing, selling, and storage before use), thereby better preventing foreign matter from invading the device main body 10 through the light passage 21.

[0036] In the case where the blocking structure 30 includes a hole 32 to be expanded, the blocking structure 30 can be a structural component of the opening. In this case, the blocking structure 30 is installed in the light passage 21 and blocks part of the light passage 21. In the specific welding process, the laser beam generated by the main body 10 of the equipment can be projected onto the blocking structure 30, and a part of the laser beam directly passes through the hole 32 to be expanded and continues to transmit, and the other part of the laser beam will be projected onto the area of ​​the blocking structure 30 where the edge of the hole 32 to be expanded is formed and penetrates this area, thereby completing the external expansion of the edge of the hole 32 to be expanded, and finally expanding the hole 32 to be expanded into a laser avoidance hole 33. In other words, the radial size of the hole 32 to be expanded is smaller than the radial size of the laser avoidance hole 33.

[0037] In a specific welding process, the laser beam emitted by the main body 10 of the equipment enters the laser emitting component 20 and is projected to the area to be penetrated 31, thereby penetrating the area to be penetrated 31 to form a laser avoidance hole 33, or the laser beam emitted by the main body 10 of the equipment is projected to the hole to be expanded 32, thereby penetrating the edge of the hole to be expanded 32. The laser beam has a high collimation. In the process of the laser beam penetrating the area to be penetrated 31 or the hole to be expanded 32, the area to be penetrated 31 or the hole to be expanded 32 can form a laser avoidance hole 33 that is exactly the same size as the laser beam. The aperture of the laser avoidance hole 33 formed in the area to be penetrated 31 or the hole to be expanded 32 will not be too much larger than the laser beam, so as to ensure that the laser beam is projected while avoiding the situation where the laser avoidance hole 33 is too large and the blocking performance is weakened.

[0038] It needs to be explained that a laser avoidance hole 33 is finally formed on the blocking structure 30 to ensure the normal passage of the laser beam during laser welding. At the same time, the area that does not need to avoid the laser beam plays a role in blocking waste slag, thereby alleviating the invasion of waste slag.

[0039] The waste slag deceleration unit 40 is used to reduce the flow rate of the airflow carrying waste slag, thereby alleviating the problem of waste slag invasion. The waste slag deceleration unit 40 includes a conical cylindrical structure 41, which can be a conical cylindrical structure or a multi-faceted conical cylindrical structure. The embodiment of the utility model does not limit the more specific shape of the conical cylindrical structure 41. The smaller first port of the conical cylindrical structure 41 faces the area to be penetrated 31 or the hole to be expanded 32, and the larger second port of the conical cylindrical structure 41 faces away from the area to be penetrated 31 or the hole to be expanded 32. When the airflow carrying waste slag passes through the waste slag deceleration unit 40, it will pass through the conical cylindrical structure 41. Since the flow area of ​​the conical cylindrical structure 41 gradually increases in the invasion direction of the waste slag, the flow rate of the airflow carrying waste slag will be reduced, thereby achieving the purpose of reducing the flow rate of the airflow carrying waste slag, reducing the speed of the waste slag, and alleviating the invasion of the waste slag into deeper places.

[0040] The laser welding equipment disclosed in the embodiment of the utility model, by adding a blocking structure 30 and a waste slag speed reduction unit 40 in the light passage 21 of the laser emitting component 20, and making the waste slag speed reduction unit 40 located between the blocking structure 30 and the equipment main body 10, so that during the welding process, the waste slag intruding into the laser emitting component 20 can be partially blocked by the blocking structure 30, thereby alleviating the intrusion of the waste slag into the light passage 21. At the same time, a part of the waste slag may continue to intrude through the blocking structure 30, and this part of the waste slag can be decelerated while passing through the waste slag speed reduction unit 40 to avoid intrusion into a deeper depth. It can be seen that the laser welding equipment disclosed in the embodiment of the utility model alleviates the problem of waste slag intrusion through the synergistic effect of the blocking structure 30 and the waste slag speed reduction unit 40, thereby avoiding the problem of waste slag intruding into the equipment main body 10 and damaging the more valuable components in the equipment main body 10.

[0041] In addition, in the laser welding equipment disclosed in the embodiment of the utility model, the blocking structure 30 is provided with a zone to be penetrated 31 and a hole to be expanded 32, so that the laser generated by the main body 10 of the equipment can be used to penetrate or expand the hole during welding, and finally a laser avoidance hole 33 can be formed that can allow the laser beam to pass through without forming an aperture that is too large. This structure can avoid the problem of opening a laser avoidance hole 33 with a larger aperture. This structure can avoid the problem of a larger aperture that is easily caused by using other means to open a laser avoidance hole 33. If the aperture of the laser avoidance hole 33 is not too large, the blocking structure 30 can play a greater role in blocking waste slag, and finally the problem of waste slag intrusion can be better alleviated.

[0042] In summary, the laser welding equipment disclosed in the embodiment of the utility model can effectively alleviate the problem of slag intrusion during the welding process by coordinating the two means of blocking by the blocking structure 30 and decelerating by the slag deceleration unit 40 .

[0043] In the embodiment of the utility model, the laser emitting component 20 can have various structures. For example, the laser emitting component 20 is an integrated structure, that is, the entire laser emitting component 20 can be a whole tube. In other embodiments, the laser emitting component 20 can be a split structure and can include a laser emitting tube 22 and a laser nozzle 23.

[0044] Among them, the laser output tube 22 is the main structural part of the laser output component 20, and the laser nozzle 23 is a pointed structure, which can make the laser emitted from the laser output tube 22 in a smaller area, so as to improve the welding accuracy. Of course, the laser nozzle 23 is a burn-resistant structural part and is not easily burned by the laser. Of course, long-term light emission will cause the laser nozzle 23 to be worn out, that is, the laser nozzle 23 is a consumable part. In order to facilitate replacement, the laser nozzle 23 can be detachably connected to the laser output tube 22. This structure enables the laser nozzle 23 to be directly disassembled for replacement or maintenance once the laser nozzle 23 needs to be replaced or repaired, without replacing the entire laser output component 20, which can undoubtedly reduce the cost of repairing or replacing the laser nozzle 23.

[0045] There are many ways to detachably connect the laser nozzle 23 and the laser output tube 22. For example, the laser nozzle 23 can be detachably connected to the laser output tube 22 by threaded fitting, plug-in, snap-in, etc. As described above, the blocking structure 30 is arranged inside the laser output component 20. In the case where the laser output component 20 includes the laser nozzle 23 and the laser output tube 22, the blocking structure 30 can be arranged inside the laser nozzle 23, or inside the laser output tube 22. Of course, the blocking structure 30 can also be arranged between the laser nozzle 23 and the laser output tube 22, and the embodiment of the utility model does not impose specific restrictions. Similarly, the waste slag deceleration unit 40 can be arranged inside the laser nozzle 23, or inside the laser output tube 22, or between the laser nozzle 23 and the laser output tube 22, and the embodiment of the utility model does not impose any restrictions.

[0046] As mentioned above, considering that the blocking structure 30 is a consumable part, while the waste slag deceleration part 40 is not easy to be worn, in a more optional solution, the blocking structure 30 can be arranged in the laser nozzle 23 or between the laser nozzle 23 and the laser exit tube 22, and the waste slag deceleration part 40 can be arranged in the laser exit tube 22. This structure can replace the blocking structure 30 in the process of replacing or repairing the laser nozzle 23, so as to facilitate the operation of the user.

[0047] In a further embodiment, one of the laser output tube 22 and the laser nozzle 23 may be provided with a connection groove 232, and the other may be provided with a connection protrusion 222, and the connection groove 232 and the connection protrusion 222 are detachably connected. Accordingly, the laser output tube 22 has a tube cavity 221, and the laser nozzle 23 has a nozzle inner cavity 231, and the tube cavity 221 and the nozzle inner cavity 231 are connected to each other. The above-mentioned light passage 21 includes the nozzle inner cavity 231 and the tube cavity 221.

[0048] The blocking structure 30 can be clamped and fixed between the bottom wall of the connecting groove 232 and the connecting protrusion 222. When the laser output tube 22 and the laser nozzle 23 are disassembled and assembled through the connecting groove 232 and the connecting protrusion 222, the blocking structure 30 can be disassembled and assembled synchronously. The area to be penetrated 31 or the hole to be expanded 32 is opposite to the nozzle inner cavity 231 and the tube cavity 221 respectively.

[0049] Of course, there are other ways to install the blocking structure 30. In an optional solution, the blocking structure 30 is plugged into the nozzle inner cavity 231 from the port of the laser nozzle 23. Of course, in this case, the disassembly and assembly of the blocking structure 30 still needs to be carried out by disassembling the laser nozzle 23. When the laser nozzle 23 does not need to be replaced, but the blocking structure 30 needs to be replaced, then disassembling the laser nozzle 23 will cause additional burdens to the user. Based on this, in a more preferred solution, the laser emitting component 20 can be provided with a plug-in hole, and the plug-in hole can be connected to the light passage 21. Specifically, the plug-in hole can be opened on the side wall of the light passage 21. In this case, the user can directly plug and unplug the blocking structure 30 during the process of replacing the blocking structure 30, without disassembling other components. Obviously, this assembly method can simplify the user's disassembly and assembly of the blocking structure 30. In the case where the laser emitting component 20 includes a laser emitting tube 22 and a laser nozzle 23, the plug-in hole can be opened on at least one of the laser emitting tube 22 and the laser nozzle 23.

[0050] In the specific welding process, the waste slag invading the laser emitting component 20 will be blocked by the blocking structure 30 first. That is to say, the blocking structure 30, as the first line of defense, can block more waste slag. In order to avoid the accumulation of waste slag in the laser emitting component 20, the user may need to pause the welding work several times during welding to dump the waste slag accumulated in the laser emitting component 20. This will undoubtedly affect the welding progress. Based on this, in a more optional solution, the laser nozzle 23 can be provided with a waste slag collection space 233 and a waste slag drop hole 234.

[0051] The outlet of the waste slag drop hole 234 can be connected to the waste slag collection space 233. The inlet of the waste slag drop hole 234 can be connected to the light passage 21 and is located on the side of the blocking structure 30 that is away from the waste slag deceleration part 40. In the specific welding process, the waste slag is blocked by the blocking structure 30 and then falls, thereby falling into the waste slag drop hole 234, and finally enters the waste slag collection space 233 from the waste slag drop hole 234, so as to be collected. This structure can collect the waste slag intercepted by the blocking structure 30 in time, thereby preventing the waste slag from accumulating in the light passage 21 and blocking the laser avoidance hole 33.

[0052] Furthermore, after the welding work is completed, the operator can dump the waste slag, based on which the waste slag collection space 233 can be provided with a waste slag dumping port 235. The operator can dump the collected waste slag through the waste slag dumping port 235.

[0053] As described above, the blocking structure 30 may have various structures, and the embodiment of the utility model does not limit the specific type of the blocking structure 30. In an optional solution, the thickness of each position of the blocking structure 30 may be equal or unequal, and the embodiment of the utility model does not limit it.

[0054] As described above, in a specific welding process, the laser beam will penetrate the area to be penetrated 31 or the hole to be expanded 32. In order to facilitate the penetration, in an optional solution, the blocking structure 30 may also include a peripheral area 34 surrounding the area to be penetrated 31. The thickness of the area to be penetrated 31 may be less than the thickness of the peripheral area 34. This structure can be specifically designed for the thickness of the area to be penetrated 31, so that the area to be penetrated 31 forms a thinner structure, thereby facilitating the rapid penetration of the laser beam during the welding process, thereby improving the working efficiency.

[0055] It should be explained that, herein, the thickness of the blocking structure 30 , the thickness of the area to be penetrated 31 , and the thickness of the peripheral area 34 all refer to the dimensions of the corresponding components in the laser projection direction.

[0056] In another optional solution, the melting point of the area to be penetrated 31 can be lower than the melting point of the peripheral area 34. This structure makes the melting point of the area to be penetrated 31 lower than the melting point of the peripheral area 34 by specifically designing the melting point of a specific area of ​​the blocking structure 30, so that in a specific welding process, the laser can quickly penetrate the area to be penetrated 31, thereby quickly forming a laser avoidance hole 33, which can undoubtedly reduce the waiting time of users during the welding process.

[0057] In the embodiment of the utility model, the number of the waste slag speed reduction unit 40 can be one or more, and the embodiment of the utility model does not limit the number of the waste slag speed reduction unit 40. In a more preferred scheme, the number of the waste slag speed reduction unit 40 can be more than one, and the multiple waste slag speed reduction units 40 can be arranged in sequence between the blocking structure 30 and the main body of the equipment 10, so as to achieve a multi-stage speed reduction effect. Obviously, this can further alleviate the infiltration of waste slag. Specifically, the multiple waste slag speed reduction units 40 can be distributed at intervals or in close proximity, that is, two adjacent waste slag speed reduction units 40 are in contact with each other.

[0058] The tapers of the conical cylindrical structures 41 of the multiple waste slag deceleration parts 40 may be equal or unequal. In an optional scheme, in the direction toward the equipment main body 10, the tapers of the conical cylindrical structures 41 of the multiple waste slag deceleration parts 40 may be equal. In another optional scheme, the tapers of the conical cylindrical structures 41 of the multiple waste slag deceleration parts 40 may increase. This structure can achieve multi-stage deceleration while allowing the conical cylindrical structures 41 far away from the equipment main body 10 to play a greater deceleration function, and as much waste slag as possible is decelerated at a position farther away from the equipment main body 10, which can further alleviate the problem of waste slag invading the equipment main body 10.

[0059] In other embodiments, the spacing between the plurality of waste slag deceleration units 40 may be increased in the direction toward the main body 10 of the device. In this case, it is possible to design a relatively dense waste slag deceleration unit 40 at a position farther from the main body 10 of the device, so that targeted treatment can be performed on the waste slag that is farther from the main body 10 of the device. At a position closer to the main body 10 of the device, the amount of waste slag is less, and at this time, there is no need to arrange more waste slag deceleration units 40, which is conducive to simplifying the structure of the laser welding equipment and reducing the weight of the laser welding equipment, thereby reducing the load on the user when holding the laser welding equipment for welding.

[0060] As described above, in the specific welding process, the waste slag intruding into the laser emitting component 20 will be decelerated by the waste slag deceleration unit 40. In order to better prevent further intrusion of the waste slag, at least one of the inner cone surface 412 of the conical cylindrical structure 41 and the outer cone surface 411 of the conical cylindrical structure 41 can be a rough surface. Specifically, the rough surface can be provided with textures, micro-protrusions, etc. to increase the roughness of the rough surface. In this case, the rough surface is conducive to the adhesion of the waste slag, thereby achieving the purpose of collecting the waste slag. It can be seen that this structure can further reduce the intrusion of the waste slag into a deeper position.

[0061] In other embodiments, at least one of the inner conical surface 412 of the conical cylindrical structure 41 and the outer conical surface 411 of the conical cylindrical structure 41 may be provided with a magnetic adsorption layer. The magnetic adsorption layer can magnetically adsorb the passing waste residue, so that the waste residue deceleration unit 40 can magnetically adsorb the waste residue while decelerating the waste residue, thereby achieving the purpose of collecting the waste residue.

[0062] In a more specific embodiment, at least one of the inner conical surface 412 of the conical cylindrical structure 41 and the outer conical surface 411 of the conical cylindrical structure 41 may be provided with a magnetic adsorption layer, and the surface of the magnetic adsorption layer that is not blocked by the conical cylindrical structure 41 may be provided with a texture structure. This structure enables the magnetic adsorption layer to collect waste residues by magnetic adsorption, and the texture structure makes it easier for the magnetic adsorption layer to adhere to the collected waste residues, thereby improving the collection effect.

[0063] In an embodiment of the utility model, the waste slag deceleration part 40 may only include a conical cylindrical structure 41, and the conical cylindrical structure 41 may be directly installed in the laser emitting component 20. In other embodiments, the waste slag deceleration part 40 may further include a fixed installation part 42. The fixed installation part 42 may protrude from the outer cone 411 of the conical cylindrical structure 41 and be fixedly connected to the conical cylindrical structure 41. The fixed installation part 42 may be connected to the laser emitting component 20, so as to realize the installation of the entire waste slag deceleration part 40 in the laser emitting component 20. Specifically, the fixed installation part 42 may realize the fixed installation of the entire waste slag deceleration part 40 with the laser emitting component 20 through threaded fitting, plug-in fitting, etc. The embodiment of the utility model does not limit the specific connection method between the fixed installation part 42 and the laser emitting component 20. This structure enables the conical cylindrical structure 41 to be fixedly installed in the laser emitting component 20 through the fixed installation portion 42, without the need for the conical cylindrical structure 41 to be directly connected to the laser emitting component 20. This is beneficial for controlling the radial dimension of the conical cylindrical structure 41 and avoiding the problem of the conical cylindrical structure 41 having an excessively large radial dimension due to the need to directly connect to the inner wall of the laser emitting component 20.

[0064] The structure of the fixed mounting portion 42 can be various. In an optional solution, the fixed mounting portion 42 can be an annular structure. The fixed mounting portion 42 can be arranged around the conical cylindrical structure 41 and fixed on the outer conical surface 411 of the conical cylindrical structure 41. In another optional solution, there can be multiple fixed mounting portions 42, and the multiple fixed mounting portions 42 can be distributed around the conical cylindrical structure 41 at intervals and fixed on the outer conical surface 411 of the conical cylindrical structure 41. The embodiment of the utility model does not limit the shape of the fixed mounting portion 42.

[0065] In a further optional solution, the fixed mounting portion 42 may be a magnetic structural portion, for example, the fixed mounting portion 42 may be a permanent magnetic structure. The outer conical surface 411 of the conical cylindrical structure 41 may be a smooth surface. The outer conical surface 411 is connected to the magnetic adsorption surface of the fixed mounting portion 42. The magnetic adsorption surface of the fixed mounting portion 42 may include the surface of the fixed mounting portion 42 facing the light outlet port of the laser emitting component 20, that is, the light outlet port of the light channel 21. The magnetic adsorption surface may be connected to the outer conical surface 411 of the conical cylindrical structure 41, thereby forming the windward surface of the entire waste slag deceleration portion 40. In the specific welding process, part of the airflow carrying waste slag will be blown onto the outer conical surface 411, and then can flow along the outer conical surface 411 to the magnetic adsorption surface, thereby being adsorbed by the fixed mounting portion 42. This structure enables the waste slag deceleration portion 40 to have a strong active adsorption ability for waste slag, thereby being able to better collect waste slag.

[0066] After welding is completed, the waste slag deceleration unit 40 can be disassembled and separated from the laser emitting component 20, and the waste slag adsorbed thereon can be cleaned up. In other embodiments, in order to facilitate the cleaning of the waste slag adsorbed by magnetism, in a further technical solution, the fixed installation unit 42 can be provided with a negative pressure channel 421, and the inlet of the negative pressure channel 421 is located on the magnetic adsorption surface. The negative pressure channel 421 can be connected to a negative pressure vacuum pump. In the specific working process, the waste slag adsorbed on the magnetic adsorption surface can be sucked away by the negative pressure channel 421, thereby realizing the automatic discharge of the waste slag.

[0067] In a further technical solution, the laser welding equipment disclosed in the embodiment of the utility model may also include an air nozzle 51 and an air supply pipeline 52. The laser emitting component 20 may be provided with an air outlet channel 24, and the negative pressure channel 421 may be connected between the two ends of the air outlet channel 24. The air inlet of the air outlet channel 24 and the air nozzle 51 may be connected in parallel and both are connected to the air supply pipeline 52. The air outlet of the air outlet channel 24 is used to discharge the protective gas so as to maintain the negative pressure channel 421 in a negative pressure state. The negative pressure channel 421 in a negative pressure state is used to absorb the waste slag on the magnetic adsorption surface and discharge it through the air outlet of the air outlet channel 24. In the embodiment of the utility model, the protective gas may be an inert gas, such as nitrogen, helium, etc.

[0068] During the welding process, the air nozzle 51 can spray a protective gas to the welding point, thereby forming a protective gas atmosphere at the welding point to avoid the problem of oxidation at the welding point due to high temperature. At the same time, the air outlet channel 24 can use the protective gas to cool the laser emitting component 20 to avoid the laser emitting component 20 being too hot and causing the magnetism of the fixed mounting part 42 to weaken or demagnetize. In addition, the flow of the protective gas can ensure that the negative pressure channel 421 is in a negative pressure adsorption state, which is conducive to the adsorption of waste slag by the negative pressure channel 421. This structure does not require a special negative pressure vacuum pump, which is conducive to reducing the manufacturing cost of laser welding equipment.

[0069] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0070] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A laser welding device, characterized in that: The device comprises an equipment main body (10), a laser emitting component (20), a blocking structure (30) and a waste slag deceleration unit (40), wherein: The laser emitting component (20) is connected to the main body (10) of the device, and the laser emitting component (20) is provided with a light passage (21) for the laser beam emitted by the main body (10) of the device to pass through, and the blocking structure (30) and the waste slag deceleration unit (40) are arranged in the light passage (21); The waste slag deceleration part (40) is located between the blocking structure (30) and the equipment main body (10); the blocking structure (30) is provided with a to-be-punched area (31) or a to-be-expanded hole (32); the to-be-punched area (31) is used for the laser beam to punch through to form a laser avoidance hole (33); the to-be-expanded hole (32) is used for the laser beam to expand to form the laser avoidance hole (33); The waste slag deceleration portion (40) comprises a conical cylindrical structure (41), wherein a first smaller port of the conical cylindrical structure (41) faces the area to be punctured (31) or the hole to be expanded (32), and a second larger port of the waste slag deceleration portion (40) faces away from the area to be punctured (31) or the hole to be expanded (32).

2. The laser welding equipment according to claim 1, characterized in that: There are a plurality of waste residue deceleration parts (40), and the plurality of waste residue deceleration parts (40) are sequentially arranged between the blocking structure (30) and the equipment main body (10).

3. The laser welding equipment according to claim 2, characterized in that: In the direction toward the main body (10) of the equipment, the tapers of the conical cylindrical structures (41) of the plurality of waste slag deceleration parts (40) gradually increase; or, In the direction toward the main body (10) of the device, the conical cylindrical structures (41) of the plurality of waste slag deceleration parts (40) have the same taper; and / or, In the direction toward the main body (10) of the equipment, the spacing between the plurality of waste slag deceleration parts (40) increases gradually.

4. The laser welding equipment according to claim 1, characterized in that: At least one of the inner conical surface (412) of the conical cylindrical structure (41) and the outer conical surface (411) of the conical cylindrical structure (41) is a rough surface; or, At least one of the inner conical surface (412) of the conical cylindrical structure (41) and the outer conical surface (411) of the conical cylindrical structure (41) is provided with a magnetic adsorption layer; or, At least one of the inner conical surface (412) of the conical cylindrical structure (41) and the outer conical surface (411) of the conical cylindrical structure (41) is provided with a magnetic adsorption layer, and the surface of the magnetic adsorption layer that is not blocked by the conical cylindrical structure (41) is provided with a texture structure.

5. The laser welding equipment according to claim 1, characterized in that: The waste residue deceleration unit (40) further comprises a fixed installation unit (42), wherein: The fixed installation portion (42) is an annular structure, the fixed installation portion (42) is arranged around the conical cylindrical structure (41), and is fixed on the outer conical surface (411) of the conical cylindrical structure (41); or, There are a plurality of fixed installation parts (42), and the plurality of fixed installation parts (42) are distributed at intervals around the conical cylindrical structure (41) and are fixed on the outer conical surface (411) of the conical cylindrical structure (41).

6. The laser welding equipment according to claim 5, characterized in that: The fixed installation part (42) is a magnetic structure part, the outer conical surface (411) of the conical cylindrical structure (41) is a smooth surface, and the outer conical surface (411) is connected to the magnetic adsorption surface of the fixed installation part (42).

7. The laser welding equipment according to claim 5 or 6, characterized in that: The fixed installation part (42) is provided with a negative pressure channel (421), the laser welding equipment further comprises an air nozzle (51) and an air supply pipeline (52), the laser emitting component (20) is provided with an air outlet channel (24), the negative pressure channel (421) is connected between the two ends of the air outlet channel (24), the air inlet of the air outlet channel (24) and the air nozzle (51) are connected in parallel, and both are connected to the air supply pipeline (52), the air outlet of the air outlet channel (24) is used to discharge protective gas, so as to maintain the negative pressure channel (421) in a negative pressure state, and the negative pressure channel (421) in the negative pressure state is used to absorb waste slag and discharge it through the air outlet.

8. The laser welding equipment according to claim 1, characterized in that: The laser emitting component (20) comprises a laser emitting tube (22) and a laser nozzle (23); one of the laser emitting tube (22) and the laser nozzle (23) is provided with a connecting groove (232), and the other is provided with a connecting protrusion (222); the connecting groove (232) and the connecting protrusion (222) are detachably connected; the laser emitting tube (22) has a tube cavity (221), and the laser nozzle (23) has a nozzle inner cavity (231 ), the tube cavity (221) and the nozzle inner cavity (231) are interconnected, the light passage (21) comprises the nozzle inner cavity (231) and the tube cavity (221), the blocking structure (30) is clamped and fixed between the bottom wall of the connecting groove (232) and the connecting protrusion (222), and the area to be penetrated (31) or the hole to be expanded (32) is respectively opposite to the nozzle inner cavity (231) and the tube cavity (221); or, The laser emitting component (20) is provided with an insertion hole, the insertion hole is in communication with the light passage (21), and the blocking structure (30) is detachably inserted into the insertion hole to extend into the light passage (21).

9. The laser welding equipment according to claim 8, characterized in that: The laser tube nozzle (23) is provided with a waste residue collection space (233) and a waste residue drop hole (234); the outlet of the waste residue drop hole (234) is connected to the waste residue collection space (233); the inlet of the waste residue drop hole (234) is connected to the light passage (21) and is located on a side of the blocking structure (30) facing away from the waste residue deceleration portion (40); and the waste residue collection space (233) is provided with a waste residue dumping port (235).

10. The laser welding equipment according to claim 1, 8 or 9, characterized in that: The blocking structure (30) further comprises a peripheral region (34) surrounding the region to be penetrated (31), wherein: The thickness of the area to be punctured (31) is smaller than the thickness of the peripheral area (34); and / or, The melting point of the area to be broken down (31) is lower than the melting point of the peripheral area (34).

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