High-precision automatic wire filling device for laser tailor-welded blank

Abstract

The utility model relates to the technical field of laser welding, and disclose laser tailor welded blank high accuracy automation wire filling device, including mounting seat, the bottom of mounting seat is installed laser welder, the bottom of laser welder is installed copper mouth, one side of laser welder is installed the connecting block, the inside of connecting block is provided with cavity. This laser tailor welded blank high accuracy automation wire filling device, motor drive cooperation symmetrical wire feeding wheel structure, replaced manual wire feeding, realizes wire filling automation, greatly reduces the labor intensity of worker, can also avoid the problem that the speed is suddenly fast and suddenly slow when manual wire feeding, makes wire feeding rate keep stable, guarantees weld filling even, promotes welding quality, the transmission mode power transmission of spline connection is efficient and stable, plus the cooperation of pivot and rotation groove, make mechanical failure less in wire feeding process, reliable operation can be adapted to the high accuracy requirement of laser tailor welding, simultaneously adapts the sustained wire feeding demand under a variety of welding scene.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and in particular to a high-precision automated wire filling device for laser welding plates. Background Technology

[0002] Laser-welded plates, as a core technology for achieving lightweight and customized equipment, have been widely used in high-end equipment fields such as automobile manufacturing and aerospace. In automobile body production, the use of laser-welded plates of varying thicknesses and materials can reduce the weight of the vehicle body and improve collision safety by optimizing material distribution. In precision manufacturing scenarios such as battery shells for new energy vehicles and aerospace structural components, it has become the preferred connection technology.

[0003] However, existing high-precision automated wire filling devices for laser welding plates have the following drawbacks: (1) Traditionally, manual hand-held welding wire filling is required, which not only requires workers to maintain a fixed posture for a long time, resulting in high labor intensity, but is also limited by human efficiency and is difficult to adapt to the rhythm of automated welding production lines, resulting in low overall welding efficiency. (2) In many traditional laser wire feed welding guns, the welding gun head and the wire feed head are often integrated together, and the wire feed angle is fixed and difficult to adjust according to the weld angle.

[0004] Therefore, this utility model provides a high-precision automated wire filling device for laser welding plates. Utility Model Content

[0005] (a) Technical problems to be solved The problem solved by this utility model is to provide a high-precision automated wire filling device for laser welding plates, which solves the problems mentioned in the background art, such as the difficulty in adapting to the rhythm of automated welding production lines, resulting in low overall welding efficiency and difficulty in adjusting according to the weld angle.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a high-precision automated wire feeding device for laser welding plates, comprising a mounting base, a laser welder mounted on the bottom of the mounting base, a copper nozzle mounted on the bottom of the laser welder, a connecting block mounted on one side of the laser welder, a cavity formed inside the connecting block, a wire feeding assembly provided on the inner wall of the cavity, a connecting tube fixedly connected to the bottom of the connecting block, a sliding groove formed on the surface of the connecting tube, and an adjustment assembly provided at the bottom of the connecting tube; The wire feeding assembly includes a motor fixedly connected to the inner wall of the cavity. The output end of the motor is splinedly connected to a transmission rod. One end of the transmission rod is fixedly connected to a rotating shaft. One end of the rotating shaft is fixedly connected to a wire feeding wheel. The wire feeding wheels are symmetrically arranged. The adjusting assembly includes a rotating block rotatably connected to one end of the connecting tube. An arc-shaped wire feeding tube is fixedly connected to the bottom of the rotating block. Multiple slots arranged in a circle are opened on the surface of the rotating block. An insert block is slidably connected to the inner wall of the slide groove. One side of the insert block is movably inserted into the inside of the slot. The inner wall of the push ring is fixedly connected to the surface of the insert block. A damper and a spring are connected together between the top of the insert block and the inner top wall of the slide groove.

[0007] Optionally, a tapered wire feed port is installed on the top of the connecting block. The tapered wire feed port is made of stainless steel. The tapered structure expands the feed opening, which facilitates the quick insertion of the welding wire and avoids jamming or deviation from the clamping area of ​​the wire feed wheel when manually threading the wire.

[0008] Optionally, the top of the mounting base is provided with an anti-slip pad made of rubber, which is installed on the top of the mounting base to increase the friction between the device and the mounting surface, prevent the device from shifting due to equipment vibration during the welding process, and ensure accurate welding position.

[0009] Optionally, the surface of the mounting base has mounting holes arranged in a circle, providing a standardized mounting and fixing interface, which facilitates the quick assembly of the device onto an automated welding production line or a special frame using fasteners such as bolts, thus meeting the standardized installation requirements of industrial production.

[0010] Optionally, the inner wall of the rotating block is provided with an annular groove, and an L-shaped locking block is slidably engaged with the inner wall of the annular groove. The top of the L-shaped locking block is fixedly connected to the bottom of the connecting pipe. The L-shaped locking block is slidably engaged in the annular groove, which not only does not hinder the rotation of the rotating block around the connecting pipe, but also restricts the axial displacement of the rotating block and prevents it from falling off the bottom of the connecting pipe.

[0011] Optionally, the inner wall of the cavity is provided with a rotating groove, and one end of the rotating shaft is rotatably connected to the inside of the rotating groove, providing a stable rotation support point for the rotating shaft, so that one end of the rotating shaft is embedded in the rotating groove for rotation, avoiding rotational deviation or shaking caused by the rotating shaft being suspended in the air.

[0012] (III) Beneficial Effects This utility model provides a high-precision automated wire filling device for laser welding plates, which has the following advantages: 1. This high-precision automated wire feeding device for laser welding plates features a motor-driven structure with symmetrical wire feeding wheels, replacing manual wire feeding and automating the process. This significantly reduces the labor intensity of workers and avoids the problem of inconsistent wire feeding speeds during manual feeding, ensuring a stable wire feeding rate, uniform weld filling, and improved welding quality. The spline connection transmission method provides efficient and stable power transmission, and the combination of the rotating shaft and the rotating groove minimizes mechanical failures during wire feeding, ensuring reliable operation. It is suitable for the high-precision requirements of laser welding and can also meet the continuous wire feeding needs of various welding scenarios.

[0013] 2. This high-precision automated wire feeding device for laser welding plates, through the cooperation of a rotating block and multiple slots, can achieve precise multi-angle positioning of the arc-shaped wire feeding tube, meeting the welding needs of different positions and angles of laser welding plates, and solving the problem that a fixed wire feeding angle is difficult to adapt to complex welds; the elastic force provided by the spring can firmly lock the insert block in the slot, while the damper can prevent the insert block from loosening due to vibration during welding, ensuring the stability of the wire feeding angle and preventing the welding wire from deviating and affecting the welding accuracy; in addition, the cooperation between the L-shaped locking block and the annular groove does not affect the rotation of the rotating block, but also limits it, preventing the rotating block from falling off, and improving the stability and safety of the adjustment component operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the copper nozzle structure of this utility model; Figure 3 This is a schematic diagram of the wire feeding wheel structure of this utility model; Figure 4 This is a schematic diagram of the insert structure of this utility model; Figure 5 This is a schematic diagram of the copper nozzle structure of this utility model.

[0015] In the diagram: 1. Mounting base; 2. Laser welder; 3. Copper nozzle; 4. Connecting block; 5. Wire feeding assembly; 501. Motor; 502. Rotating shaft; 503. Wire feeding wheel; 6. Connecting pipe; 7. Adjusting assembly; 701. Rotating block; 702. Arc-shaped wire feeding tube; 703. Insertion block; 704. Push ring; 705. Damper; 706. Spring; 8. Conical wire feeding port; 9. Anti-slip pad. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] Please see Figures 1 to 5 This utility model provides a technical solution: a high-precision automated wire feeding device for laser welding plates, including a mounting base 1, a laser welder 2 mounted on the bottom of the mounting base 1, a copper nozzle 3 mounted on the bottom of the laser welder 2, a connecting block 4 mounted on one side of the laser welder 2, a cavity opened inside the connecting block 4, a wire feeding assembly 5 provided on the inner side wall of the cavity, a connecting pipe 6 fixedly connected to the bottom of the connecting block 4, a sliding groove opened on the surface of the connecting pipe 6, and an adjustment assembly 7 provided at the bottom of the connecting pipe 6; The wire feeding assembly 5 includes a motor 501 fixedly connected to the inner wall of the cavity. The output end of the motor 501 is splinedly connected to a transmission rod. One end of the transmission rod is fixedly connected to a rotating shaft 502, which fixes and drives the wire feeding wheel 503 to rotate synchronously. It is an intermediate transmission component connecting the transmission rod and the wire feeding wheel 503. One end of the rotating shaft 502 is fixedly inserted through the wire feeding wheel 503. It is the core wire feeding execution component. The symmetrical layout can clamp the welding wire. The friction force generated by the rotation drives the welding wire to be fed downward. The wire feeding wheel 503 is symmetrically arranged. The adjusting assembly 7 includes a rotating block 701 rotatably connected to one end of the connecting pipe 6. An arc-shaped wire feeding tube 702 is fixedly connected to the bottom of the rotating block 701. Multiple slots arranged in a circle are opened on the surface of the rotating block 701. An insert block 703 is slidably connected to the inner wall of the slide groove. The insert block 703 is used to fix and unlock the rotating block 701 in conjunction with the slots. When the insert block 703 is inserted into the slot, the angle of the rotating block 701 is fixed. When it is removed, the restriction is released. One side of the insert block 703 is movably inserted into the inside of the slot. The inner wall of the push ring 704 is fixedly connected to the surface of the insert block 703. A damper 705 and a spring 706 are connected between the top of the insert block 703 and the inner top wall of the slide groove. When adjusting the wire feeding angle, after pushing the push ring 704 to unlock the rotating block 701, the rotating block 701 rotates in a circle around the axis of the connecting pipe 6. The arc-shaped wire feeding tube 702 swings in an arc with the rotating block 701 around the same axis, so as to achieve precise adjustment of the wire feeding direction for welds at different positions and angles. The top of the connecting block 4 is equipped with a tapered wire feeding port 8, which is made of stainless steel. The tapered structure expands the feed opening, making it easy to quickly insert the welding wire and avoid jamming or deviation from the clamping area of ​​the wire feeding wheel 503 when manually threading the wire. The top of the mounting base 1 is provided with an anti-slip pad 9, which is made of rubber. The anti-slip pad 9 is installed on the top of the mounting base 1 to increase the friction between the device and the mounting surface, prevent the device from shifting due to equipment vibration during the welding process, and ensure the accuracy of the welding position. Mounting base 1 has mounting holes on its surface arranged in a circle, providing a standardized mounting interface. This allows the device to be quickly assembled onto an automated welding production line or a dedicated frame using fasteners such as bolts, thus meeting the standardized installation requirements of industrial production. The inner wall of the rotating block 701 is provided with an annular groove, and an L-shaped locking block is slidably engaged with the inner wall of the annular groove. The top of the L-shaped locking block is fixedly connected to the bottom of the connecting pipe 6. The L-shaped locking block is slidably engaged in the annular groove, which not only does not hinder the rotation of the rotating block 701 around the connecting pipe 6, but also restricts the axial displacement of the rotating block 701 and prevents it from falling off the bottom of the connecting pipe 6. The inner wall of the cavity is provided with a rotating groove, and one end of the rotating shaft 502 is rotatably connected to the inside of the rotating groove, providing a stable rotation support point for the rotating shaft 502, so that one end of the rotating shaft 502 is embedded in the rotating groove to rotate, avoiding rotational deviation or shaking caused by the rotating shaft 502 being suspended in the air.

[0018] In this invention, the working steps of the device are as follows: First step: First, the welding wire is placed into the cavity of the connecting block 4 through the tapered wire feed port 8, positioning it between the two symmetrical wire feed rollers 503. After starting the motor 501, the output end of the motor 501 transmits power through the spline-connected transmission rod, driving the rotating shaft 502 to rotate. The rotating shaft 502, in turn, drives the wire feed rollers 503, which are fixed and pass through it, to rotate synchronously. The symmetrically arranged wire feed rollers 503 clamp the welding wire with the help of friction, and smoothly push the welding wire downwards during rotation. The wire is then transported through the connecting pipe 6 to the adjusting component 7, providing a continuous filler wire for laser welding. At the same time, one end of the rotating shaft 502 is rotatably connected to the rotating groove on the inner side wall of the cavity, which ensures the stability of the rotating shaft 502 during rotation and prevents deviation during wire feeding. The second step: During adjustment, first push the push ring 704 upwards, causing the insert block 703 to slide upwards along the groove of the connecting tube 6. During this process, the spring 706 is compressed, and the damper 705 acts as a buffer to prevent the insert block 703 from moving too fast. After the insert block 703 moves upwards, one side of it disengages from the slot on the surface of the rotating block 701, releasing the fixed restriction on the rotating block 701. Then, the rotating block 701 can be rotated. It rotates stably around the connecting tube 6 through the sliding engagement relationship between the annular groove and the L-shaped locking block, thereby driving the bottom arc-shaped wire feeding tube 702 to adjust the angle. After the angle is determined, release the push ring 704, and the spring 706 resets, pushing the insert block 703 downwards to re-insert it into the corresponding slot of the rotating block 701, fixing the rotating block 701 again, thus completing the adjustment of the wire feeding angle.

[0019] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0020] It will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision automated wire feeding device for laser welding plates, comprising a mounting base (1), characterized in that: A laser welder (2) is installed at the bottom of the mounting base (1). A copper nozzle (3) is installed at the bottom of the laser welder (2). A connecting block (4) is installed on one side of the laser welder (2). A cavity is opened inside the connecting block (4). A wire feeding assembly (5) is provided on the inner side wall of the cavity. A connecting pipe (6) is fixedly connected to the bottom of the connecting block (4). A sliding groove is opened on the surface of the connecting pipe (6). An adjustment assembly (7) is provided at the bottom of the connecting pipe (6). The wire feeding assembly (5) includes a motor (501) fixedly connected to the inner side wall of the cavity. The output end of the motor (501) is splinedly connected to a transmission rod. One end of the transmission rod is fixedly connected to a rotating shaft (502). One end of the rotating shaft (502) is fixedly connected to a wire feeding wheel (503). The wire feeding wheels (503) are symmetrically arranged. The adjusting assembly (7) includes a rotating block (701) rotatably connected to one end of the connecting tube (6). An arc-shaped wire feeding tube (702) is fixedly connected to the bottom of the rotating block (701). Multiple slots arranged in a circle are opened on the surface of the rotating block (701). A plug (703) is slidably connected to the inner wall of the groove. One side of the plug (703) is movably inserted into the inside of the slot. The inner wall of the push ring (704) is fixedly connected to the surface of the plug (703). A damper (705) and a spring (706) are connected together between the top of the plug (703) and the inner top wall of the groove.

2. The high-precision automated wire feeding device for laser-welded plates according to claim 1, characterized in that: The top of the connecting block (4) is equipped with a tapered wire feeding port (8), which is made of stainless steel.

3. The high-precision automated wire feeding device for laser-welded plates according to claim 1, characterized in that: The top of the mounting base (1) is provided with an anti-slip pad (9), which is made of rubber.

4. The high-precision automated wire feeding device for laser-welded plates according to claim 1, characterized in that: The mounting base (1) has mounting holes on its surface, which are arranged in a circular pattern.

5. The high-precision automated wire feeding device for laser-welded plates according to claim 1, characterized in that: The inner wall of the rotating block (701) is provided with an annular groove, and an L-shaped locking block is slidably engaged with the inner wall of the annular groove. The top of the L-shaped locking block is fixedly connected to the bottom of the connecting pipe (6).

6. The high-precision automated wire feeding device for laser-welded plates according to claim 1, characterized in that: The inner wall of the cavity is provided with a rotating groove, and one end of the rotating shaft (502) is rotatably connected to the inside of the rotating groove.

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