Soft copper bar laser welding device

Abstract

The invention relates to the technical field of copper bar welding, and particularly discloses a soft copper bar laser welding device which comprises a machine table, a laser welding mechanism for welding a copper bar, a butt joint assembly for pushing the copper bar to move and approach, and two supports fixedly mounted on the machine table. According to the laser welding device for the soft copper bars, when two copper bars are welded and machined and in butt joint of the copper bars through the butt joint assembly, the welded copper bars are automatically centered through arrangement of the centering assembly, so that the butt joint accuracy of the copper bars is improved, the dislocation problem of the two copper bars in butt joint is prevented, and therefore the welding quality is improved; in the process that the butt joint assembly drives the copper bar to move, the fixing piece is filled with air, when the butt joint assembly is reset after welding, the air in the fixing piece is extruded by the moving piece, the air is blown to the welding position of the copper bar through an air blowing head on the air guiding piece, slag on the welding position of the copper bar is blown off, and therefore waste slag accumulated on a welding station is reduced, and the welding efficiency is improved. And subsequent copper bar welding is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of copper bar welding, and in particular to a soft copper bar laser welding device. Background Art

[0002] Soft copper busbars are connectors used for conducting electricity in large currents. They are widely used in electrical projects such as high and low voltage electrical appliances, switch contacts, power distribution equipment, bus ducts, etc. Soft copper busbars can also be used in ultra-large current electrolytic smelting projects such as metal smelting, electrochemical plating, and chemical caustic soda. During the connection process, the copper busbars need to be welded.

[0003] The announcement number is CN221415535U, which is a patent for a soft copper bar welding device, including a machine base; a docking mechanism is arranged on one side of the top of the machine base, a flattening mechanism is installed above the docking mechanism, a hydraulic press B is fixed at the center of the other side of the top of the machine base, a transmission mechanism is installed on the top of the hydraulic press B, and a welding mechanism is arranged below the transmission mechanism; by setting the flattening mechanism, when welding the soft copper bar, the soft copper bar is placed on a placing plate in the flattening mechanism, and through the operation of the hydraulic press A, the soft copper bar on the placing plate is pushed to be squeezed with the extrusion plate on the top of the fixed frame, so that the soft copper bar is flattened, so that when welding the soft copper bar, the welding part of the soft copper bar is flatter, the deformation or cracking of the weld is reduced, and the welding quality and stability are improved. At the same time, the welding head can be swung, which can facilitate the adjustment of different angles for welding the soft copper bar.

[0004] However, in the patent, the two copper bars to be butted are not aligned before welding, which may cause misalignment of the two copper bars after butt welding, thereby affecting the welding accuracy of the copper bars and reducing the welding quality.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0006] The object of the present invention is to provide a soft copper busbar laser welding device which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the purpose of the present invention, the following technical scheme is adopted:

[0008] A soft copper bar laser welding device comprises: a machine platform, a laser welding mechanism for welding the copper bar, a docking assembly for pushing the copper bar to move closer, two brackets fixedly mounted on the machine platform, and a cleaning assembly arranged on the brackets for cleaning the welding slag on the surface of the copper bar after welding;

[0009] The docking assembly includes: a placement plate slidably mounted on the machine platform, a rack fixedly connected to the placement plate, a gear shaft meshing with the rack, an electric push rod driving the placement plates to approach each other, and a centering assembly arranged on the placement plate to center the copper busbar before welding;

[0010] The centering assembly includes: a positioning member slidably mounted on the placement plate, a hinged rod hingedly mounted on the positioning member, a push rod driving the positioning members to approach each other, and a spring for resetting the push rod.

[0011] Furthermore, one end of the push rod is hingedly installed between the two hinged rods, a positioning sleeve is mounted on the surface of the push rod, and the top of the positioning sleeve is fixedly installed on the bottom of the placement plate, and a fixing ring is fixedly connected to the surface of the other end of the push rod, and one side of the fixing ring is placed on the surface of the positioning sleeve.

[0012] Furthermore, the spring is sleeved on the surface of the other end of the push rod, one end of the spring is fixedly connected to the surface of the other end of the push rod, and the other end of the spring is fixedly connected to the surface of the positioning sleeve.

[0013] Furthermore, the top wall of the bracket is also provided with a fixing component for fixing the welding position of the copper bar;

[0014] The fixing assembly comprises: a pressing plate and an electric cylinder for driving the pressing plate to move, and the bottom of the electric cylinder is fixedly mounted on the top wall of the bracket.

[0015] Furthermore, the cleaning assembly includes: a fixed part, an air guide part connected to the fixed part, a movable part slidably mounted on the fixed part, a return spring sleeved on the movable part, and a pull rope fixedly mounted on the movable part, and one end of the pull rope is fixedly connected to the adjacent placement plate.

[0016] Furthermore, one end of the return spring is fixedly connected to the inner wall of the fixed member, and the other end of the return spring is fixedly connected to the surface of one end of the moving member.

[0017] Furthermore, mounting blocks are symmetrically fixedly mounted on the surface of the machine, and guide wheels are symmetrically mounted on the surface of the mounting blocks, and the surface of the pull rope is placed on the guide wheels.

[0018] Furthermore, a material discharge chute is provided on the surface of the machine, and a collection box is placed inside the machine, and the collection box is located directly below the material discharge chute.

[0019] Compared with the prior art, the present invention has the following beneficial effects: when two copper bars are being welded, the welded copper bars are automatically centered by setting a centering component when the copper bars are being butt-jointed by a butt-jointing assembly, so as to improve the accuracy of the copper bar butt-jointing and prevent the two butt-jointed copper bars from being misaligned, thereby improving the welding quality; and in the process of the butt-jointing assembly driving the copper bar to move, the interior of the fixed part is filled with air, and when the butt-jointing assembly is reset after welding, the air inside the fixed part is squeezed by the moving part, and the air is blown onto the copper bar welding position through the air blowing head on the air guide, so as to blow off the slag on the copper bar welding position, so as to reduce the accumulation of waste slag at the welding station and affect the subsequent copper bar welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0021] Figure 1 It is a front view schematic diagram of the present invention;

[0022] Figure 2 It is a bottom view schematic diagram of the local structure of the docking assembly of the present invention;

[0023] Figure 3 It is a bottom view schematic diagram of the local structures of the docking assembly, the centering assembly and the cleaning assembly of the present invention;

[0024] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 5 It is a schematic front view of the local structure of the placement plate and the positioning member of the present invention;

[0026] Figure 6 It is a schematic diagram of a front and cross-sectional view of a local structure of a cleaning component of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0028] In the figure: 1. machine table; 2. laser welding mechanism; 3. docking assembly; 301. placement plate; 302. rack; 303. gear shaft; 304. electric push rod; 4. centering assembly; 401. positioning piece; 402. hinged rod; 403. push rod; 404. spring; 405. fixing ring; 406. positioning sleeve; 5. bracket; 6. fixing assembly; 601. pressure plate; 602. electric cylinder; 7. cleaning assembly; 701. fixing piece; 702. moving piece; 703. air guide piece; 704. reset spring; 705. pull rope; 706. mounting block; 707. guide wheel. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0030] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] like Figures 1 to 7 As shown, a soft copper bar laser welding device of the present invention comprises: a machine platform 1, a laser welding mechanism 2 for welding the copper bar, a docking assembly 3 for pushing the copper bar to move closer, two brackets 5 fixedly mounted on the machine platform 1, and a cleaning assembly 7 arranged on the brackets 5 for cleaning the welding slag on the surface of the copper bar after welding;

[0032] It should be noted that after the two copper bars are fixed, the position of the laser welding head thereon is adjusted by the laser welding mechanism 2 to perform welding processing. Here, the laser welding head is driven by two motors and a lead screw to move up and down and left and right. This is the prior art and will not be described in detail.

[0033] The docking assembly 3 includes: a placement plate 301 slidably mounted on the machine table 1, a rack 302 fixedly connected to the placement plate 301, a gear shaft 303 meshing with the rack 302, an electric push rod 304 driving the placement plates 301 to approach each other, and a centering assembly 4 arranged on the placement plate 301 to center the copper busbar before welding;

[0034] It should be noted that, in order to improve the straightness of the placement plate 301 when it moves, slide grooves are symmetrically opened on the surface of the machine 1, and sliders matching the slide grooves are fixedly installed on both sides of the placement plate 301, so that the placement plate 301 is slidably installed in the slide grooves on the surface of the machine 1 through the sliders, thereby improving the stability of the movement of the placement plate 301;

[0035] A bearing is arranged on the surface of the gear shaft 303, and the inner ring of the bearing is fixedly connected to the surface of the gear shaft 303, and the outer ring of the bearing is fixedly connected to the inside of the placement plate 301. The bearing arrangement improves the rotation stability of the gear shaft 303.

[0036] The centering component 4 includes: a positioning member 401 slidably mounted on the placement plate 301; a hinged rod 402 hingedly mounted on the positioning member 401; a push rod 403 that drives the positioning members 401 to move closer to each other; and a spring 404 that resets the push rod 403. One end of the push rod 403 is hingedly mounted between the two hinged rods 402. A positioning sleeve 406 is mounted on the surface of the push rod 403, and the top of the positioning sleeve 406 is fixedly mounted on the bottom of the placement plate 301. A fixing ring 405 is fixedly connected to the surface of the other end of the push rod 403, and one side of the fixing ring 405 is placed on the surface of the positioning sleeve 406. After the spring 404 pushes the push rod 403 to reset, the fixing ring 405 limits the continued movement of the push rod 403.

[0037] It should be noted that, in order to improve the straightness of the positioning member 401 when it moves, moving grooves are symmetrically opened on the surface of the placement plate 301, and moving blocks that match the moving grooves are fixedly installed on both sides of the positioning member 401, so that the positioning member 401 is slidably installed in the moving grooves on the surface of the placement plate 301 through the moving blocks, thereby improving the stability of the movement of the positioning member 401;

[0038] In addition, a plurality of ball bearings are equidistantly installed on the surface of the positioning member 401. When the two symmetrical positioning members 401 are used to center the copper busbar, the ball bearings on the positioning member 401 contact the side wall of the copper busbar, thereby reducing the contact area and the friction between the two, and facilitating the movement of the copper busbar during docking.

[0039] In the present invention, the butt assembly 3 and the centering assembly 4 cooperate with each other, and the butted copper bars are center-positioned while the two copper bars are butt-jointed, so as to avoid the misalignment problem of the two butt-jointed copper bars, thereby improving the welding quality;

[0040] When the output end of the electric push rod 304 pushes the adjacent placement plates 301 to move, the racks 302 fixed on the two placement plates 301 cooperate with the meshing gear shafts 303, so that the soft copper bars placed on the two placement plates 301 are brought close to each other, and when the two placement plates 301 move close to each other, one end of the push rod 403 at the bottom of the placement plate 301 is squeezed on the push rod 403 at the bottom of the other placement plate 301, and the two push rods 403 drive their hinged hinge rods 402 to deflect, so that the push rods 403 drive the hinged positioning parts 401 to approach the copper bars. At this time, the two positioning parts 401 automatically center the copper bars. By centering the welded copper bars, when the two copper bars are close to each other and docked, the accuracy of the copper bar docking is improved, and the misalignment problem of the two docked copper bars is prevented, thereby improving the welding quality.

[0041] It is to be added that the spring 404 is sleeved on the surface of the other end of the push rod 403, one end of the spring 404 is fixedly connected to the surface of the other end of the push rod 403, and the other end of the spring 404 is fixedly connected to the surface of the positioning sleeve 406. After the two placement plates 301 move away from each other, the spring 404 sleeved on the push rod 403 is elastically reset after being stressed, pushing the push rod 403 to reset, causing the hinged rod 402 symmetrically hinged at one end of the push rod 403 to deflect, and the hinged rod 402 drives the corresponding positioning member 401 to move, automatically releasing the centering of the soft copper busbar, which is convenient for taking and placing the soft copper busbar after welding.

[0042] In addition, the top wall of the bracket 5 is also provided with a fixing component 6 for fixing the welding position of the copper bar;

[0043] The fixing assembly 6 includes: a pressing plate 601 ; and an electric cylinder 602 for driving the pressing plate 601 to move, wherein the bottom of the electric cylinder 602 is fixedly mounted on the top wall of the bracket 5 .

[0044] After the soft copper bars placed on the two placement plates 301 are relatively moved into position, the electric cylinder 602 is started, and the output end of the electric cylinder 602 pushes the pressing plate 601 down, so that the pressing plate 601 is pressed on one side of the copper bar welding position to fix it, thereby reducing the warping of the copper bar welding position, improving the stability of the two copper bars during the welding process, and improving the welding quality.

[0045] As a further extension of the present invention, after the welding of the two copper bars is completed, the waste slag generated by the welding remains on the copper bars, so that the waste slag is accumulated at the welding position of the placement plate 301. During the subsequent welding, the waste slag will affect the flatness of the copper bars and the welding quality, so it is necessary to clean the welding waste slag;

[0046] The cleaning assembly 7 includes: a fixed part 701; an air guide part 703 connected to the fixed part 701; a movable part 702 slidably mounted on the fixed part 701; a return spring 704 sleeved on the movable part 702; one end of the return spring 704 is fixedly connected to the inner wall of the fixed part 701, the other end of the return spring 704 is fixedly connected to the surface of one end of the movable part 702, and a pull rope 705 is fixedly mounted on the movable part 702, and the pull rope 705 is preferably a nylon rope, and one end of the pull rope 705 is fixedly connected to the adjacent placement plate 301.

[0047] It should be noted that the fixed part 701 is an air cylinder, the movable part 702 is a piston rod, the air guide part 703 is an air outlet pipe, and the air outlet end of the air guide part 703 is equidistantly fixedly connected with a plurality of air blowing heads, and the air blowing heads are tilted to facilitate the cleaning of the waste slag at the welding station;

[0048] The output end of the electric push rod 304 pushes the placement plate 301 to move, so that the soft copper bars placed on the two placement plates 301 are connected, and the placement plate 301 pulls the pull rope 705 fixed at the lower end, so that one end of the pull rope 705 drives the other end of the moving part 702 to move away from the fixed part 701. At this time, the fixed part 701 is filled with air, and the return spring 704 is squeezed and contracted by force;

[0049] When the welding is completed, the placement plate 301 is reset and moved. At this time, the pull rope 705 is in a relaxed state, so that the reset spring 704 recovers its elasticity after being stressed. At this time, the reset spring 704 pushes the movable part 702 to move, squeezing the air inside the fixed part 701. The air passes through the blowing head on the air guide part 703 and blows on the copper busbar welding position to blow off the slag on the copper busbar welding position, so as to reduce the accumulation of waste slag at the welding station and affect the subsequent welding of the copper busbar.

[0050] It should be added here that a mounting block 706 is symmetrically fixedly installed on the surface of the machine 1, and a guide wheel 707 is symmetrically installed on the surface of the mounting block 706. The surface of the pull rope 705 is placed on the guide wheel 707. Through the setting of the guide wheel 707, the movement of the pull rope 705 is guided to improve the stability of the movement of the pull rope 705.

[0051] A material discharge trough is provided on the surface of the machine 1, and a collecting box is placed inside the machine 1, and the collecting box is located directly below the material discharge trough, so that the slag blown off the copper bar can be collected in the collecting box through the material discharge trough.

[0052] Working principle: When the power is turned on and two soft copper bars are welded, the copper bars are first placed on the placement plate 301, and the electric push rod 304 is started. The output end of the electric push rod 304 pushes the adjacent placement plate 301 to move, and the racks 302 fixed on the two placement plates 301 cooperate with the meshing gear shaft 303 to make the soft copper bars placed on the two placement plates 301 approach each other. When the two placement plates 301 move closer to each other, one end of the push rod 403 at the bottom of the placement plate 301 is pressed on the push rod 403 at the bottom of the other placement plate 301, and the two push rods 403 drive the hinged hinge rods 402 to deflect, so that the push rods 403 drive the hinged positioning member 401 to approach the copper bar. At this time, the two positioning members 401 center the copper bars, and when the soft copper bars placed on the two placement plates 301 move and dock, the placement plate 301 pulls the drawstring 705 fixed at the lower end, so that one end of the drawstring 705 drives the other end of the moving member 702 to move to a position away from the fixed member 701. At this time, the fixed member 701 is filled with air, and the return spring 704 is squeezed and contracted under force, so that after the welding is completed, when the placement plate 301 is reset and moved, the return spring 704 is elastically restored after being stressed, pushing the moving member 702 to move, squeezing the air inside the fixed member 701, and the air passes through the air blowing head on the air guide 703 and blows on the copper bar welding position to blow off the slag on the copper bar welding position;

[0053] When the soft copper bars placed on the two placement plates 301 move relatively to their positions, the electric cylinder 602 is started, and the output end of the electric cylinder 602 pushes the pressing plate 601 down, so that the pressing plate 601 is pressed on one side of the copper bar welding position to fix it, thereby reducing the warping of the copper bar welding position, and adjusting the position of the laser welding head thereon through the laser welding mechanism 2 to perform welding processing.

[0054] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0055] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A soft copper busbar laser welding device, characterized in that: include: A machine platform, a laser welding mechanism for welding the copper bar, a docking assembly for pushing the copper bar to move closer, two brackets fixedly mounted on the machine platform, and a cleaning assembly arranged on the brackets for cleaning the welding slag on the surface of the copper bar after welding; The docking assembly includes: a placement plate slidably mounted on the machine platform, a rack fixedly connected to the placement plate, a gear shaft meshing with the rack, an electric push rod driving the placement plates to approach each other, and a centering assembly arranged on the placement plate to center the copper busbar before welding; The centering assembly includes: a positioning member slidably mounted on the placement plate, a hinged rod hingedly mounted on the positioning member, a push rod driving the positioning members to approach each other, and a spring for resetting the push rod.

2. A soft copper busbar laser welding device as claimed in claim 1, characterized in that: One end of the push rod is hingedly installed between the two hinged rods, a positioning sleeve is mounted on the surface of the push rod, and the top of the positioning sleeve is fixedly installed on the bottom of the placement plate, and a fixing ring is fixedly connected to the surface of the other end of the push rod, and one side of the fixing ring is placed on the surface of the positioning sleeve.

3. A soft copper busbar laser welding device as claimed in claim 2, characterized in that: The spring is sleeved on the surface of the other end of the push rod, one end of the spring is fixedly connected to the surface of the other end of the push rod, and the other end of the spring is fixedly connected to the surface of the positioning sleeve.

4. A soft copper busbar laser welding device as claimed in claim 1, characterized in that: The top wall of the bracket is also provided with a fixing component for fixing the welding position of the copper bar; The fixing assembly comprises: a pressing plate and an electric cylinder for driving the pressing plate to move, and the bottom of the electric cylinder is fixedly mounted on the top wall of the bracket.

5. A soft copper busbar laser welding device as claimed in claim 1, characterized in that: The cleaning assembly includes: a fixed part, an air guide part connected to the fixed part, a moving part slidably mounted on the fixed part, a return spring sleeved on the moving part, and a pull rope fixedly mounted on the moving part, and one end of the pull rope is fixedly connected to the adjacent placement plate.

6. A soft copper busbar laser welding device as claimed in claim 5, characterized in that: One end of the return spring is fixedly connected to the inner wall of the fixed part, and the other end of the return spring is fixedly connected to the surface of one end of the moving part.

7. A soft copper busbar laser welding device as claimed in claim 5, characterized in that: The surface of the machine platform is symmetrically fixed with mounting blocks, and the surface of the mounting blocks is symmetrically installed with guide wheels, and the surface of the pull rope is placed on the guide wheels.

8. The soft copper busbar laser welding device according to claim 1, characterized in that: A material discharge trough is provided on the surface of the machine, a collecting box is placed inside the machine, and the collecting box is located directly below the material discharge trough.

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