Tailored blank laser welding device with positioning mechanism
By introducing a positioning mechanism and a lifting device into the laser welding device, the problems of inaccurate positioning of weldments and inability to adjust the laser head during welding are solved, achieving welding accuracy and flexibility.
Patent Information
- Application Number
- CN202422731616.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing laser welding devices cannot accurately position the weldment during the welding process, and the laser head cannot adjust the focal length and welding position, resulting in welding deviation.
A laser welding device with a positioning mechanism was designed, which included a lifting device and a positioning mechanism. The weldment was clamped by a retractable positioning plate driven by a cylinder, and the position and focal length of the laser head were adjusted by a lifting kit driven by a motor.
It realizes precise positioning of weldment and flexible adjustment of laser head, avoids welding deviation and improves welding accuracy and flexibility.
Smart Images
Figure CN223382772U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser welding, in particular to a laser welding device with a positioning mechanism. Background Art
[0002] Laser welding uses laser energy to automatically join and weld several steels, stainless steels, aluminum alloys, etc. with different materials and coatings to form an integral plate, profile, sandwich panel, etc., in order to meet the different material performance requirements of parts. The widespread use of laser welding involves a laser welding device.
[0003] However, during the laser welding process, the weldment often needs to be fixed to a certain extent. Some laser welding devices do not have the function of accurately positioning the welded workpiece. Most fixing methods are through simple magnetic attraction or spot welding, which may cause a certain degree of deviation during the welding process. In addition, the laser head used for welding cannot adjust the focal length and move the welding position according to the different shapes and heights of the weldment. Utility Model Content
[0004] In order to solve the problem that the workpiece cannot be clamped and positioned and the laser head cannot be adjusted in height, the purpose of the utility model is to provide a laser welding device with a positioning mechanism.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a laser welding device with a positioning mechanism, comprising an operating table, a lifting device is slidably installed on one side of the top of the operating table, the top of the operating table is fixedly connected to the positioning mechanism, the bottom end of the operating table is fixedly installed with four supporting legs, the positioning mechanism comprises a bottom plate, the top of the bottom plate is fixedly connected to the top of the operating table, a first fixing member is fixedly connected to the outer surface of one side of the bottom plate, two second fixing members are fixedly connected to one side of the top of the bottom plate, the top of the bottom plate is slidably connected to the first positioning plate, and the middle part of the top of the bottom plate is fixedly installed with a supporting member. The top end of the first positioning plate is slidably connected to the second positioning plate, and one end of the first positioning plate and the second positioning plate are respectively interlaced with the two ends of the support plate, and one end of the second positioning plate is fixedly connected to the two side plates, and one end of the two side plates is fixedly connected to a spring, and one end of the two springs is respectively fixedly connected to both sides of one end of the support plate, and a sliding groove is provided on the outer surface of the first positioning plate, and a transmission pin is slidably connected between the inner walls of the sliding groove, and the top end of the transmission pin is fixedly connected to the bottom end of the second positioning plate, and a cylinder is fixedly installed at one end of the bottom plate, and the output end of the cylinder is fixedly connected to one end of the first positioning plate.
[0006] Preferably, the lifting device includes a lifting shell, the bottom end of the lifting shell is fixedly connected to an electric slider, one end of the lifting shell is provided with a limiting slot, two second guide rods are fixedly connected between the inner walls at both ends of the lifting shell and are rotatably connected to a screw rod, the inner surface of the lifting shell is slidably connected to a lifting kit, the outer surfaces of the two second guide rods are respectively slidably engaged with the inner walls on both sides of one end of the lifting kit, the middle inner surface of the lifting kit is threadedly engaged with the outer surface of the screw rod, one end of the lifting kit is fixedly connected to a laser head, and a motor is fixedly installed on the top of the lifting shell, and the output end of the motor is fixedly connected to one end of the screw rod.
[0007] Compared with the prior art, the beneficial effects of the present invention are:
[0008] 1. The utility model sets a positioning mechanism, and the retractable movable positioning plate cooperates with the fixing part to clamp and position the different end faces of the rectangular weldment, which can ensure that the weldment maintains an accurate position during the welding process and avoid welding deviation caused by movement and deformation of the weldment.
[0009] 2. The utility model provides a lifting device, and the laser head that can be raised and lowered and translated can better adapt to weldments of different heights and shapes, ensuring that the laser beam always maintains the correct focal length and welding position during the welding process, thereby increasing the flexibility of the welding work. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0011] Figure 1 This is a schematic diagram of the structure of the utility model.
[0012] Figure 2 This is a schematic diagram of the positioning mechanism structure of the utility model.
[0013] Figure 3 This is an exploded view of the positioning mechanism of the utility model.
[0014] Figure 4 This is a schematic diagram of the structure of the lifting device of the utility model.
[0015] In the figure: 1. Operating table; 2. Lifting device; 3. Positioning mechanism; 11. Rectangular groove; 12. Electric slide rail; 13. First guide rod; 14. Support leg; 21. Lifting shell; 22. Limiting groove; 23. Second guide rod; 24. Screw rod; 25. Lifting kit; 26. Laser head; 27. Motor; 28. Electric slider; 31. Bottom plate; 32. First fixing member; 33. Second fixing member; 34. Second positioning plate; 35. First positioning plate; 36. Support plate; 37. Side plate; 38. Spring; 39. Slide; 40. Transmission pin; 41. Cylinder. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] Example: Figure 1-3As shown, the utility model provides a laser welding device with a positioning mechanism, including an operating table 1, a lifting device 2 is slidably installed on one side of the top of the operating table 1, a positioning mechanism 3 is fixedly connected to the top of the operating table 1, and four supporting legs 14 are fixedly installed on the bottom end of the operating table 1. The positioning mechanism 3 includes a bottom plate 31, the top of the bottom plate 31 is fixedly connected to the top of the operating table 1, a first fixing member 32 is fixedly connected to the outer surface of one side of the bottom plate 31, two second fixing members 33 are fixedly connected to one side of the top of the bottom plate 31, and a first positioning plate 35 is slidably connected to the top of the bottom plate 31. A support plate 36 is fixedly installed at the middle of the top of the bottom plate 31, and the top of the first positioning plate 35 is slidably connected to the second positioning plate 34. One end of the first positioning plate 35 and the second positioning plate 34 are respectively connected to the two ends of the support plate 36. One end of the second positioning plate 34 is fixedly connected to two side plates 37, and one end of the two side plates 37 is fixedly connected to a spring 38. One end of the two springs 38 is respectively fixedly connected to both sides of one end of the support plate 36. A sliding groove 39 is provided on the outer surface of the first positioning plate 35, and a transmission pin 40 is slidably connected between the inner walls of the sliding groove 39. The top of the transmission pin 40 The bottom end of the second positioning plate 34 is fixedly connected, and one end of the bottom plate 31 is fixedly installed with a cylinder 41. The output end of the cylinder 41 is fixedly connected to one end of the first positioning plate 35. Under the output of the cylinder 41, the first positioning plate 35 and the second positioning plate 34 are driven to move. The slide groove 39 on the outer surface of the first positioning plate 35 provides a predetermined trajectory for the movement of the transmission pin 40, so that the first positioning plate 35 can drive the second positioning plate 34 to extend synchronously through the transmission pin 40 when the first positioning plate 35 moves in the x-axis. When the output end of the cylinder 41 contracts, the second positioning plate 3 The two springs 38 at one end provide contraction assistance for the contraction movement of the second positioning plate 34, thereby improving the rationality of the movement of the second positioning plate 34. The outer surface of the second positioning plate 34 slides in contact with the outer surface of the first positioning plate 35, helping to reduce the friction between the two. The two second fixing members 33 and the first fixing member 32 are located in different directions of the bottom plate 31. With the cooperation of the extension and contraction movement of the second positioning plate 34 and the first positioning plate 35, the weldment can be clamped and fixed in multiple directions, thereby enabling the weldment to achieve self-positioning movement and clamping fixation during the clamping and fixing process.
[0018] The lifting device 2 includes a lifting shell 21, the bottom end of the lifting shell 21 is fixedly connected to an electric slider 28, one end of the lifting shell 21 is provided with a limiting slot 22, two second guide rods 23 are fixedly connected between the inner walls of the two ends of the lifting shell 21 and are rotatably connected to a screw rod 24, the inner surface of the lifting shell 21 is slidably connected to a lifting kit 25, the outer surfaces of the two second guide rods 23 are respectively slidably sleeved with the inner walls on both sides of one end of the lifting kit 25, the middle inner surface of the lifting kit 25 is threadedly sleeved with the outer surface of the screw rod 24, one end of the lifting kit 25 is fixedly connected to a laser head 26, and a motor 27 is fixedly installed on the top of the lifting shell 21, and the output end of the motor 27 is connected to the screw rod 2 4 is fixedly connected, and the operator can drive the screw rod 24 to perform vertical rotational movement between the lifting devices 2 by starting the motor 27. The rotating screw rod 24 drives the lifting kit 25 to move up and down through the thread on the outer surface. The second guide rods 23 on both sides of the inner wall of the lifting shell 21 provide a vertical movement guide for the movement of the lifting kit 25 to prevent the lifting kit 25 from deflecting and shaking during the movement. One end of the lifting kit 25 extends outward to penetrate the limit groove 22 and slides with the outer surface of the limit groove 22, so that the two sides of the lifting kit 25 are slidably engaged with one end of the lifting shell 21, further improving the stability of the lifting kit 25 during the movement.
[0019] A rectangular groove 11 is provided on one side of the top of the operating table 1, and an electric slide rail 12 is fixedly connected to the outer surface of the rectangular groove 11. The outer surface of the electric slide rail 12 is slidably sleeved with the outer surface of the electric slider 28. A first guide rod 13 is fixedly connected to one side of the top of the operating table 1, and one end of the electric slider 28 is slidably sleeved with the outer surface of the first guide rod 13. The rectangular groove 11 on the top of the operating table 1 and the first guide rod 13 on one side of the top of the operating table 1 are intended to ensure that the electric slider 28 in the lifting device 2 can maintain the stability of movement during the sliding process through the rectangular groove 11, and help the lifting device 2 to ensure the accuracy of movement when performing x-axial movement, thereby realizing the x-axial movement adjustment of the laser head 26 in the lifting device 2, making it convenient for the operator to perform positioning welding on different welding positions.
[0020] The second positioning plate 34, the first positioning plate 35, the first fixing member 32 and the two second fixing members 33 are all in an "L" shape, and the second positioning plate 34, the first positioning plate 35, the first fixing member 32 and the two second fixing members 33 are of the same height, the two springs 38 are distributed in a mirror image, the inner wall of one end of the slide 39 is an inclined arc surface, and the outer surface of the transmission pin 40 is slidably fitted with the inner wall of the slide 39, and the "L"-shaped second positioning plate 34, the first positioning plate 35, the first fixing member 32 and the two second fixing members 33 are respectively distributed at different positions of the bottom plate 31, which is convenient for passing through the first positioning plate 35 and the second The movement of the positioning plate 34 will abut and position the end faces of the weldment at different positions. The two springs 38 distributed in a mirror image are both in the initial state, which can help the second positioning plate 34 to make a certain degree of movement compensation during the movement, reducing the burden of the movement of the transmission pin 40. The two springs 38 in the initial state provide a contraction force for the second positioning plate 34 during the ejection of the cylinder 41, making it easier to retract the second positioning plate 34. The inclined arc-shaped slide groove 39 provides a movement guide for the movement of the transmission pin 40, causing the transmission pin 40 to change from a linear movement to a certain degree of lateral movement.
[0021] The lifting kit 25 is in the shape of an "I", and the outer surface of the lifting kit 25 slides and fits with the inner wall of the lifting shell 21. The "I" shape of the lifting kit 25 is to facilitate the sliding fit of one end of the lifting kit 25 with the inner wall of the lifting shell 21, thereby reducing the friction generated by the lifting kit 25 during movement. One end of the lifting kit 25 passes through the limit groove 22 and slides and engages with the outer surface of the lifting shell 21, further improving the stability and conductivity of the movement of the lifting kit 25.
[0022] Working principle: When it is necessary to position the workpiece, the cylinder 41 is started, and the output end of the cylinder 41 drives the first positioning plate 35 to slide linearly on the outer surface of the bottom plate 31. The sliding first positioning plate 35 drives the transmission pin 40 to move in the slide groove 39 through the slide groove 39 provided on the outer surface. The moving transmission pin 40 drives the second positioning plate 34 to slide horizontally on the outer surface of the first positioning plate 35 in the process of passing through the inclined arc surface of the inner wall of the slide groove 39, so that the first positioning plate 35 and the second positioning plate 34 can extend and slide in two directions, thereby expanding the positioning size, and then The workpiece is placed on the top of the support plate 36, and the output end of the cylinder 41 is retracted to drive the first positioning plate 35 to move in the opposite direction. The transmission pin 40 drives the second positioning plate 34 to move linearly in the opposite direction again through the slide groove 39. The two springs 38 at one end of the second positioning plate 34 help the second positioning plate 34 to retract during the movement by tightening the force. During the retraction process, the L-shaped first positioning plate 35 and the second positioning plate 34 cooperate with the first fixing members 32 and the second fixing members 33 located on the other two sides to clamp and position the workpiece, thereby achieving the purpose of clamping and positioning the workpiece.
[0023] When laser welding is required, the lifting device 2 drives the lifting device 2 to move along the x-axis through the sliding cooperation between the electric slider 28 at the bottom and the fixed rectangular groove 11 in the rectangular groove 11, and the motor 27 is started. The output end of the motor 27 drives the screw rod 24 to rotate between the lifting shell 21, and the rotating screw rod 24 drives the lifting kit 25 with a threaded sleeve on the outer surface to move threadedly. The moving lifting kit 25 slides in contact with the inner surface of the lifting shell 21. The second guide rods 23 on both sides of the inner wall of the lifting shell 21 help the moving lifting kit 25 not to deviate or shake during the movement, making the movement process of the lifting kit 25 more stable, thereby driving the laser head 26 at one end of the lifting kit 25 to move up and down, realizing the movement of the laser head 26 in two directions of the x-axis and the z-axis.
[0024] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A laser welding device with a positioning mechanism, comprising an operating table (1), characterized in that: A lifting device (2) is slidably mounted on one side of the top of the operating platform (1), a positioning mechanism (3) is fixedly connected to the top of the operating platform (1), and four supporting legs (14) are fixedly mounted on the bottom of the operating platform (1); The positioning mechanism (3) comprises a bottom plate (31), the top end of the bottom plate (31) is fixedly connected to the top end of the operating table (1), a first fixing member (32) is fixedly connected to the outer surface of one side of the bottom plate (31), two second fixing members (33) are fixedly connected to one side of the top end of the bottom plate (31), the top end of the bottom plate (31) is slidably connected to a first positioning plate (35), a support plate (36) is fixedly installed at the middle part of the top end of the bottom plate (31), the top end of the first positioning plate (35) is slidably connected to a second positioning plate (34), and one end of the first positioning plate (35) and the second positioning plate (34) are respectively interlaced with the two ends of the support plate (36). The second positioning plate (34) is connected with two side plates (37) at one end, and one end of each of the two side plates (37) is fixedly connected with a spring (38), and one end of each of the two springs (38) is fixedly connected with both sides of one end of the support plate (36). A sliding groove (39) is provided on the outer surface of the first positioning plate (35), and a transmission pin (40) is slidably connected between the inner walls of the sliding groove (39). The top end of the transmission pin (40) is fixedly connected with the bottom end of the second positioning plate (34). A cylinder (41) is fixedly installed at one end of the bottom plate (31), and the output end of the cylinder (41) is fixedly connected with one end of the first positioning plate (35).
2. A laser welding device with a positioning mechanism according to claim 1, characterized in that: The lifting device (2) comprises a lifting shell (21), the bottom end of the lifting shell (21) is fixedly connected to an electric slider (28), one end of the lifting shell (21) is provided with a limiting slot (22), two second guide rods (23) are fixedly connected between the inner walls of the two ends of the lifting shell (21) and are rotatably connected to a screw rod (24), the inner surface of the lifting shell (21) is slidably connected to a lifting kit (25), the outer surfaces of the two second guide rods (23) are respectively slidably sleeved with the inner walls on both sides of one end of the lifting kit (25), the middle inner surface of the lifting kit (25) is threadedly sleeved with the outer surface of the screw rod (24), one end of the lifting kit (25) is fixedly connected to a laser head (26), the top end of the lifting shell (21) is fixedly installed with a motor (27), and the output end of the motor (27) is fixedly connected to one end of the screw rod (24).
3. The laser welding device with a positioning mechanism according to claim 1, characterized in that: A rectangular groove (11) is provided on one side of the top of the operating table (1), and an electric slide rail (12) is fixedly connected to the outer surface of the rectangular groove (11), and the outer surface of the electric slide rail (12) is slidably sleeved with the outer surface of the electric slider (28).
4. The laser welding device with a positioning mechanism according to claim 2, characterized in that: A first guide rod (13) is fixedly connected to one side of the top end of the operating table (1), and one end of the electric slider (28) is slidably sleeved with the outer surface of the first guide rod (13).
5. The laser welding device with a positioning mechanism according to claim 1, characterized in that: The second positioning plate (34), the first positioning plate (35), the first fixing member (32) and the two second fixing members (33) are all in an "L" shape, and the second positioning plate (34), the first positioning plate (35), the first fixing member (32) and the two second fixing members (33) are at the same height.
6. The laser welding device with a positioning mechanism according to claim 1, characterized in that: The two springs (38) are distributed in a mirror image.
7. The laser welding device with a positioning mechanism according to claim 1, characterized in that: The inner wall of one end of the slide groove (39) is an inclined arc surface, and the outer surface of the transmission pin (40) is slidably fitted with the inner wall of the slide groove (39).
8. The laser welding device with a positioning mechanism according to claim 2, characterized in that: The lifting kit (25) is in the shape of an "I" character, and the outer surface of the lifting kit (25) is slidably fitted with the inner wall of the lifting shell (21).