Laser welding assembly flatness adjustment device

Abstract

The utility model discloses a laser welding assembly flatness adjusting device, including base, still include the laser welding device of fixed connection in the top of base, the mount of fixed connection in the top of base, the control device of fixed connection in the one side of mount, servo motor no.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a flatness adjustment device for laser welding components. Background Technology

[0002] Laser welding is a precision welding technology that uses a high-energy-density laser beam as a heat source. The local high temperature generated by laser focusing melts the material and forms a molten pool. After cooling, the atoms are bonded together. Laser welding has extremely high requirements for the assembly precision of components. Otherwise, it is easy to cause defects such as uneven welds, porosity, and whitening. Flatness adjustment devices are the key equipment to solve this problem. Their design goal is to adjust the flatness of the workpiece through mechanical structure to ensure uniform contact of component surfaces during the welding process, thereby ensuring weld quality.

[0003] According to the description in the welding leveling device disclosed on the patent website (authorization announcement number: CN222037339U), "the sliding plate is driven by the translation drive on both sides of the base plate to move the frame to an unobstructed position above the slot, ensuring that the workpiece can be smoothly aligned with the slot during the hoisting process. The cylindrical workpiece to be welded is slowly placed into the slot of the frame using hoisting equipment. When the workpiece is placed in, it will press the positioning plates on both sides of the slot. The positioning plates rotate around the rotation point and fit against the surface of the workpiece. At the same time, the tension spring automatically tightens the positioning plates to clamp the workpiece. The anti-slip teeth of the positioning plates further increase the friction to prevent the workpiece from sliding or rotating during the subsequent angle adjustment process. The alignment of the workpiece with the welding reference is observed. If there is a positional deviation, the position of the sliding plate is finely adjusted by the translation drive, which drives the frame and the workpiece to move so that the workpiece is aligned with the slot." The starting point of the weld is aligned with the working position of the welding device to ensure welding accuracy. Since the weld seam of the two vertically joined cylindrical workpieces is curved, the lifting mechanisms around the frame are adjusted according to the height requirements of the current welding position during welding. By individually controlling the extension and retraction height of one or more lifting mechanisms, the tilt angle of the frame is changed to keep the weld section to be welded at the same horizontal height, which facilitates stable operation of the welding equipment. After welding a section of weld, the above leveling operation is repeated until the entire weld seam is welded. After welding is completed, all lifting mechanisms are first controlled to extend and retract to a uniform height to restore the frame to a horizontal state. The sliding plate is moved to a safe part-removing position by the translation drive component. The tension spring is then released manually or through the auxiliary mechanism to disengage the positioning plate from the workpiece surface. Finally, the welded workpiece is lifted out of the slot. Regarding the above description, the applicant believes the following problems exist: The workpiece fixing of the device relies on a fixed semi-circular groove and a passive clamping structure with a tension spring. The groove is a semi-circular groove adapted to specific cylindrical workpieces, and can only match cylindrical parts with a single arc. If the workpiece diameter is too large, it cannot be placed in; if the diameter is too small, the gap between it and the groove is too large, and it cannot provide stable support, resulting in poor adaptability of the device. At the same time, the device does not have the function of rotating the workpiece itself. When welding the circumferential weld of a vertically butt-jointed cylindrical part (such as the weld on the side of the cylinder which needs to be rotated to the top for welding), the original device cannot directly adjust the circumferential position of the workpiece. It can only be achieved through the following cumbersome operation: first, control the lifting mechanism to reset the frame to horizontal, and then move the frame through the translation drive, or re-lift the workpiece to adjust the placement angle. Not only are the operation steps numerous and time-consuming, but the workpiece is also prone to misalignment with the welding reference due to multiple movements, reducing the welding accuracy, thus resulting in poor flexibility of the device. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a flatness adjustment device for laser welding components, which has the function of clamping and fixing workpieces of different diameters, thereby increasing the adaptability of the device, and has the function of welding all angles of the workpiece, thereby improving the welding accuracy and increasing the flexibility of the device.

[0005] The objective of this utility model is achieved through the following technical solution: A laser welding component flatness adjustment device includes a base, a laser welding device fixedly connected to the top of the base, a mounting bracket fixedly connected to the top of the base, a control device fixedly connected to one side of the mounting bracket, a servo motor I fixedly connected to one side of the base, a left-hand and right-hand lead screw I fixedly connected to the output end of the servo motor I, a sliding block I threadedly connected to the left-hand and right-hand lead screw I, a slide rail slidably connected inside the sliding block I, a servo motor II fixedly connected to the top of the sliding block I, and a rectangular lead screw fixedly connected to the output end of the servo motor II. The components are: a sliding block 2 on the lead screw, a sliding rod 1 slidably connected inside the sliding block 2, a servo motor 3 fixedly connected inside the sliding block 2, a housing fixedly connected to the output end of the servo motor 3, a servo motor 4 fixedly connected to the top of the housing, a left- or right-hand lead screw 2 fixedly connected to the output end of the servo motor 4, a V-shaped clamping block threadedly connected to the left- or right-hand lead screw 2, a sliding rod 2 slidably connected inside the V-shaped clamping block, an electric push rod 1 fixedly connected to the top of the base, a V-shaped placement block fixedly connected to the top of the electric push rod 1, and a detection component set outside the mounting bracket.

[0006] In one optional embodiment, a through hole is provided on the base, and a left- or right-hand screw is rotatably connected to the inside of the base through the through hole.

[0007] In one optional embodiment, a through hole two is provided on the sliding block one, and a rectangular lead screw is rotatably connected to the inside of the sliding block one through the through hole two.

[0008] In one optional embodiment, a through hole three is provided on the outer casing, and the left and right rotating screw two is rotatably connected to the inside of the outer casing through the through hole three.

[0009] In one optional embodiment, the V-shaped clamping block and the V-shaped placement block are provided with rubber protective pads to increase friction on the side facing the workpiece.

[0010] In one optional embodiment, the detection component includes an electric actuator two fixedly connected to the top of the mounting bracket, a connecting block fixedly connected to the output end of the electric actuator two, and a vision sensor fixedly connected to one side of the connecting block.

[0011] In one optional embodiment, the mounting bracket has a through hole four, and the push rod of the electric push rod two is slidably connected inside the mounting bracket through the through hole four.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The user places one end of the workpiece on the V-shaped clamping block and the other end on the V-shaped placement block. Then, the servo motor four is started by the control device to rotate the left and right screw two. The left and right screw two drives the two sets of V-shaped clamping blocks to move towards the middle of the left and right screw two, thereby clamping and fixing the workpiece. At the same time, the electric push rod one is started synchronously to make the height of the V-shaped placement block consistent with the height of the V-shaped clamping block. This is beneficial for the device to clamp and fix workpieces of different diameters, thereby increasing the adaptability of the device.

[0013] 2. The servo motor is started by the control device to make the outer shell rotate. The outer shell drives the two sets of workpieces to rotate synchronously, so that the laser welding device can weld all angles of the workpiece, which helps to improve welding accuracy and increase the flexibility of the device.

[0014] 3. By inputting standard parameters into the control device, including the diameter of the workpiece to be welded, the theoretical height of the weld, and the clamping reference position of the V-shaped clamping block, as a reference standard for subsequent inspection, the control device activates the electric push rod two to push out the connecting block. The connecting block drives the vision sensor to move horizontally, which facilitates the adjustment of the vision sensor to a suitable height for workpiece inspection according to the size of the workpiece diameter. This facilitates the vision sensor's workpiece inspection. Subsequently, the vision sensor collects images of the workpiece and sends them to the control device. The control device then performs real-time analysis of the collected images, converting the visual information into quantifiable deviation data. Based on the type of deviation, the control device drives the corresponding components to perform corrective actions. For example, if there is a height error, the workpiece height is adjusted by activating servo motor two; if there is a gap in the contact, servo motor one is activated to make the workpiece make tight contact, thus forming a closed-loop control of detection, feedback, and correction. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the laser welding component flatness adjustment device; Figure 2 A schematic diagram of the overall internal structure of the laser welding component flatness adjustment device; Figure 3 A schematic diagram of the height adjustment component of the laser welding assembly flatness adjustment device; Figure 4 A schematic diagram of the clamping and fixing components of the laser welding component flatness adjustment device; Figure 5 A schematic diagram of the detection component of the laser welding assembly flatness adjustment device.

[0016] In the diagram: 1. Base; 2. Laser welding device; 3. Mounting bracket; 4. Control device; 501. Servo motor 1; 502. Left and right rotating lead screw 1; 503. Sliding block 1; 504. Slide rail; 505. Servo motor 2; 506. Sliding rod 1; 507. Rectangular lead screw; 508. Sliding block 2; 509. Servo motor 3; 510. Housing; 511. Servo motor 4; 512. Left and right rotating lead screw 2; 513. Sliding rod 2; 514. V-shaped clamping block; 515. Electric push rod 1; 516. V-shaped placement block; 61. Electric push rod 2; 62. Connecting block; 63. Vision sensor. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0018] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0021] Please see Figures 1-5This utility model provides an embodiment of a laser welding component flatness adjustment device, including a base 1, a laser welding device 2 fixedly connected to the top of the base 1, a mounting bracket 3 fixedly connected to the top of the base 1, a control device 4 fixedly connected to one side of the mounting bracket 3, a servo motor 501 fixedly connected to one side of the base 1, a left-right rotating lead screw 502 fixedly connected to the output end of the servo motor 501, a sliding block 503 threadedly connected to the left-right rotating lead screw 502, a slide rail 504 slidably connected inside the sliding block 503, a servo motor 505 fixedly connected to the top of the sliding block 503, a rectangular lead screw 507 fixedly connected to the output end of the servo motor 505, and a threaded connection on the rectangular lead screw 507. The following components are included: a sliding block 2 508, a sliding rod 1 506 slidably connected inside the sliding block 2 508, a servo motor 3 509 fixedly connected inside the sliding block 2 508, a housing 510 fixedly connected to the output end of the servo motor 3 509, a servo motor 4 511 fixedly connected to the top of the housing 510, a left-right turning screw 2 512 fixedly connected to the output end of the servo motor 4 511, a V-shaped clamping block 514 threadedly connected to the left-right turning screw 2 512, a sliding rod 2 513 slidably connected inside the V-shaped clamping block 514, an electric push rod 1 515 fixedly connected to the top of the base 1, a V-shaped placement block 516 fixedly connected to the top of the electric push rod 1 515, a detection component set outside the mounting bracket 3, and an electrical connection to the control device 4. The system includes an electric linear actuator 61, a servo motor 501, an electric linear actuator 515, a servo motor 505, a servo motor 509, and a servo motor 511. The user activates the servo motor 501 via the control device 4, causing the left and right lead screw 502 to rotate. The left and right lead screw 502 drives two sets of sliding blocks 503 to move towards the center of the left and right lead screw 502, thus facilitating the adjustment of the distance between the electric linear actuator 515 and the sliding block 503 according to the length of the workpiece. The user then places one end of the workpiece on the V-shaped clamping block 514 and the other end on the V-shaped placement block 516. The user then activates the servo motor 511 via the control device 4, causing the left and right lead screw 512 to rotate. The left and right lead screw 512 drives the two sets of V-shaped clamps... The holding block 514 moves horizontally towards the center of the left and right rotating lead screw 512, thereby clamping and fixing the workpiece. Simultaneously, the electric push rod 515 is activated to make the height of the V-shaped placement block 516 consistent with the height of the V-shaped clamping block 514. This facilitates the clamping and fixing of workpieces of different diameters, thus increasing the adaptability of the device. The above operation is then repeated to clamp and fix another workpiece. Subsequently, the servo motor 501 is activated by the control device 4 to move the two sets of sliding blocks 503 closer together, bringing the two workpieces into contact. Then, the servo motor 505 is activated by the control device 4 to rotate the rectangular lead screw 507. The rectangular lead screw 507 drives the sliding block 508 to move up and down, thereby facilitating the adjustment of the workpiece height.The workpieces to be welded are kept at the same horizontal level. The position of the workpieces is then detected and adjusted by a detection device. Laser welding device 2 is then activated to perform laser welding on the workpieces. Simultaneously, servo motor 509 is activated by control device 4 to rotate the outer casing 510. The outer casing 510 drives the two sets of workpieces to rotate synchronously, allowing laser welding device 2 to weld all angles of the workpieces. This improves welding accuracy and increases the flexibility of the device. After welding, the workpieces are removed.

[0022] In a preferred embodiment of this utility model, a through hole is provided on the base 1, and the left and right rotating screw 502 is rotatably connected to the inside of the base 1 through the through hole, which facilitates the servo motor 501 to drive the left and right rotating screw 502 to rotate, and the left and right rotating screw 502 to drive the sliding block 503 to translate.

[0023] In a preferred embodiment of this utility model, a through hole 2 is provided on the sliding block 503, and the rectangular lead screw 507 is rotatably connected to the inside of the sliding block 503 through the through hole 2, which facilitates the servo motor 505 to drive the rectangular lead screw 507 to rotate, and the rectangular lead screw 507 to drive the sliding block 508 to perform lifting and lowering movements.

[0024] In a preferred embodiment of this utility model, a through hole three is provided on the outer shell 510, and the left and right rotating lead screw two 512 is rotatably connected to the inside of the outer shell 510 through the through hole three, which is conducive to the servo motor four 511 driving the left and right rotating lead screw two 512 to rotate, which is conducive to the left and right rotating lead screw two 512 driving the V-shaped clamping block 514 to translate.

[0025] In a preferred embodiment of this utility model, the V-shaped clamping block 514 and the V-shaped placement block 516 are provided with rubber protective pads to increase friction on the side facing the workpiece. This is beneficial for the V-shaped clamping block 514 to clamp the workpiece, and for the workpiece to be protected by the rubber protective pads. This prevents the workpiece from being scratched by the V-shaped clamping block 514 and the V-shaped placement block 516, and thus helps to protect the surface of the workpiece.

[0026] Please see Figure 1 and Figure 5In this embodiment, the detection component includes an electric push rod 61 fixedly connected to the top of the mounting bracket 3, a connecting block 62 fixedly connected to the output end of the electric push rod 61, and a vision sensor 63 fixedly connected to one side of the connecting block 62. By inputting standard parameters, including the diameter of the workpiece to be welded, the theoretical height of the weld, and the clamping reference position of the V-shaped clamping block 514, to the control device 4 as a reference standard for subsequent detection, the control device 4 activates the electric push rod 61 to push out the connecting block 62. The connecting block 62 drives the vision sensor 63 to translate, thereby facilitating the detection based on the workpiece diameter. Adjusting the visual sensor 63 to a suitable height for detecting the workpiece facilitates its detection. The visual sensor 63 then acquires an image of the workpiece and sends it to the control device 4. The control device 4 then analyzes the acquired image in real time, converting the visual information into quantifiable deviation data. Based on the type of deviation, the control device 4 drives the corresponding component to perform corrective actions. For example, if there is a height error, the workpiece height is adjusted by activating servo motor 505; if there is a gap in the contact, servo motor 501 is activated to ensure close contact between the workpiece and the sensor, thus forming a closed-loop control system of detection, feedback, and correction.

[0027] In a preferred embodiment of this utility model, the mounting bracket 3 has a through hole four, and the push rod body of the electric push rod two 61 is slidably connected to the inside of the mounting bracket 3 through the through hole four, which is conducive to the electric push rod two 61 driving the vision sensor 63 to move horizontally, thereby facilitating the adjustment of the height of the vision sensor 63.

[0028] During operation, the user activates servo motor 501 via control device 4 to rotate left and right lead screw 502. Left and right lead screw 502 drives two sets of sliding blocks 503 to move towards the center of left and right lead screw 502, thus facilitating adjustment of the distance between electric push rod 515 and sliding block 503 according to the workpiece length. The user then places one end of the workpiece on V-shaped clamping block 514 and the other end on V-shaped placement block 516. Next, the user activates servo motor 511 via control device 4 to rotate left and right lead screw 512. Left and right lead screw 512 drives two sets of V-shaped clamping blocks 514 to move towards the center of left and right lead screw 512, thereby clamping the workpiece. The workpiece is fixed in place, and simultaneously, the electric push rod 515 is activated to align the height of the V-shaped placement block 516 with that of the V-shaped clamping block 514. This facilitates the clamping and fixing of workpieces of different diameters, increasing the adaptability of the device. The above operation is then repeated to clamp and fix another workpiece. Next, the servo motor 501 is activated via the control device 4 to bring the two sets of sliding blocks 503 closer together, bringing the two workpieces into contact. Then, the servo motor 505 is activated via the control device 4 to rotate the rectangular lead screw 507. The rectangular lead screw 507 drives the sliding block 508 to move up and down, thus adjusting the height of the workpiece to be welded. Maintaining the same horizontal height, standard parameters, including the diameter of the workpiece to be welded, the theoretical height of the weld, and the clamping reference position of the V-shaped clamping block 514, are input to the control device 4 as reference standards for subsequent inspection. The control device 4 then activates the electric push rod 61 to push out the connecting block 62. The connecting block 62 drives the vision sensor 63 to move horizontally, which facilitates adjusting the vision sensor 63 to a suitable height for workpiece inspection based on the workpiece diameter. This facilitates the vision sensor 63's workpiece inspection. Subsequently, the vision sensor 63 acquires an image of the workpiece and sends it to the control device 4. The control device 4 then performs real-time analysis of the acquired image, converting the visual information into quantifiable deviations. According to the type of deviation, the control device 4 drives the corresponding component to perform corrective actions. For example, if there is a height error, the workpiece height is adjusted by starting the second servo motor 505. If there is a gap in the contact, the workpiece is brought into close contact by starting the first servo motor 501, thus forming a closed-loop control of detection, feedback, and correction. Then, the laser welding device 2 is started to perform laser welding on the workpiece. At the same time, the control device 4 starts the third servo motor 509 to rotate the outer shell 510. The outer shell 510 drives the two sets of workpieces to rotate synchronously, so that the laser welding device 2 can weld all angles of the workpiece, which helps to improve welding accuracy and increase the flexibility of the device. After welding is completed, the workpiece is removed.

[0029] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations (e.g., variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.) will be conceived by those skilled in the art without actually departing from the scope and spirit of the claims.

[0030] Finally, it should be noted that the above embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A laser welding assembly flatness adjustment device, comprising a base (1), characterized in that: It also includes a laser welding device (2) fixedly connected to the top of the base (1), a mounting bracket (3) fixedly connected to the top of the base (1), a control device (4) fixedly connected to one side of the mounting bracket (3), a servo motor one (501) fixedly connected to one side of the base (1), a left-right rotating screw one (502) fixedly connected to the output end of the servo motor one (501), a sliding block one (503) threadedly connected to the left-right rotating screw one (502), a slide rail (504) slidably connected inside the sliding block one (503), a servo motor two (505) fixedly connected to the top of the sliding block one (503), a rectangular screw (507) fixedly connected to the output end of the servo motor two (505), a sliding block two (508) threadedly connected to the rectangular screw (507), and a sliding connection. The sliding rod 1 (506) is connected inside the sliding block 2 (508), the servo motor 3 (509) is fixedly connected inside the sliding block 2 (508), the housing (510) is fixedly connected to the output end of the servo motor 3 (509), the servo motor 4 (511) is fixedly connected to the top of the housing (510), the left and right screw 2 (512) is fixedly connected to the output end of the servo motor 4 (511), the V-shaped clamping block (514) is threadedly connected to the left and right screw 2 (512), the sliding rod 2 (513) is slidably connected inside the V-shaped clamping block (514), the electric push rod 1 (515) is fixedly connected to the top of the base (1), the V-shaped placement block (516) is fixedly connected to the top of the electric push rod 1 (515), and the detection component is set outside the mounting bracket (3).

2. The laser welding assembly flatness adjustment device according to claim 1, characterized in that: A through hole is provided on the base (1), and a left and right rotating screw (502) is rotatably connected to the inside of the base (1) through the through hole.

3. The laser welding assembly flatness adjustment device according to claim 2, characterized in that: A through hole 2 is provided on the sliding block 1 (503), and a rectangular screw 507 is rotatably connected to the inside of the sliding block 1 (503) through the through hole 2.

4. The laser welding assembly flatness adjustment device according to claim 3, characterized in that: The outer casing (510) has a through hole three, and the left and right screw two (512) is rotatably connected to the inside of the outer casing (510) through the through hole three.

5. The laser welding assembly flatness adjustment device according to claim 4, characterized in that: The V-shaped clamping block (514) and the V-shaped placement block (516) have rubber protective pads on the side facing the workpiece to increase friction.

6. The laser welding assembly flatness adjustment device according to claim 1, characterized in that: The detection assembly includes an electric push rod 2 (61) fixedly connected to the top of the mounting bracket (3), a connecting block (62) fixedly connected to the output end of the electric push rod 2 (61), and a vision sensor (63) fixedly connected to one side of the connecting block (62).

7. The laser welding assembly flatness adjustment device according to claim 6, characterized in that: The mounting bracket (3) has a through hole four, and the push rod of the electric push rod two (61) is slidably connected to the inside of the mounting bracket (3) through the through hole four.

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