Laser automatic welding tooling

Abstract

The utility model relates to laser welding processing technical field, specifically disclose laser automatic welding frock, including installation base, the left and right ends of installation base top all are fixedly installed with sliding groove, and the top of sliding groove is connected with the base of sliding, the top of base is rotatably connected with the rotary disc, and the lower end shaft of rotary disc and the inner bottom of base rotatably connect together, and the top of rotary disc is fixedly installed with support frame, the inside of base is provided with rotating assembly, the top of support frame is provided with placing assembly, and the side wall of support frame is provided with clamping assembly, the middle position of installation base top rotatably connects with the ball screw rod, and the rod body of ball screw rod is connected together through the thread with the bottom transmission of base, this laser automatic welding frock, through pressing the constraint of symmetrical, even of workpiece four sides can form, effectively suppresses the displacement and rotation of workpiece in the welding process, to enhance the consistency of welding seam centering.

Description

Technical Field

[0001] This utility model relates to the field of laser welding processing technology, specifically to automatic laser welding fixtures. Background Technology

[0002] Laser automatic welding fixtures are a general term for clamps and devices specially designed to automate and stabilize the laser welding process. They are used to fix the workpieces to be welded, ensure the consistency of welding position, posture and clamping force, and reduce welding errors. Chinese Patent CN215658521U discloses an automatic face-changing laser welding fixture, characterized by: a base plate, with side plates and bearing seats respectively arranged on the front and rear sides of the base plate; two material carrier plates rotatably connected between the side plates and bearing seats; a positioning groove and a clearance groove in the middle of each material carrier plate; unloading components and clamping cylinders respectively arranged on the left and right sides of each material carrier plate; a push plate fixedly connected to the piston rod of the clamping cylinder; the unloading component includes a top plate, a guide post, a spring, and a connecting plate; gears fixedly connected to the two material carrier plates through the side plates; a hydraulic cylinder arranged on the front side of the base plate; a lifting plate fixedly connected to the piston rod of the hydraulic cylinder; and racks at both ends of the lifting plate, which mesh with the gears. The beneficial effects of this invention are: it can automatically clamp and change the face of plates without multiple clamping operations, thus improving production efficiency.

[0003] Based on existing solutions and actual production and processing applications, existing automatic laser welding fixtures often encounter problems when welding workpieces. This is because many structures are difficult to clamp evenly around the edges, leading to deformation or uneven clamping force. As a result, stress concentration or marks are generated in the welding area, increasing the centering error and affecting the welding quality. Therefore, we propose an automatic laser welding fixture to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide an automatic laser welding fixture to solve the problem mentioned in the background art that many current automatic laser welding fixtures are difficult to clamp evenly on all four sides, making them prone to deformation or uneven clamping force, which in turn causes stress concentration or marks in the welding area.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic laser welding fixture, including a mounting base: The mounting base has sliding grooves fixedly installed at both the left and right ends of the top, and a base is slidably connected to the top of the sliding grooves. A rotating disk is rotatably connected to the top of the base, and the lower shaft of the rotating disk is rotatably connected to the inner bottom of the base. A support frame is fixedly installed on the top of the rotating disk. A rotating component is provided inside the base. A placement component is provided on the top of the support frame, and a clamping component is provided on the side wall of the support frame.

[0006] Preferably, a ball screw is rotatably connected at the middle position of the top of the mounting base, and the body of the ball screw is connected to the bottom of the base by a thread.

[0007] Preferably, the rotating assembly includes a first gear, a second gear, and a motor. The first gear is fixedly mounted on the shaft of one end of the rotating disk inside the base. The second gear is rotatably connected to the rear end of the top of the base, and the second gear meshes with the first gear. The motor is fixedly mounted on the rear end of the bottom of the base, and the output end of the motor is connected to the lower shaft of the second gear.

[0008] Preferably, the placement assembly includes a first baffle, a second baffle, and a workpiece. The first baffle is fixedly installed at the rear end of the top of the support frame, and the first baffle is also fixedly installed at the right end of the top of the support frame. The second baffle is rotatably connected to the left end of the top of the support frame, and the second baffle is also rotatably connected to the front end of the top of the support frame. The workpiece is placed on the top of the support frame, and the workpiece is set in a close-fitting state with the first baffle.

[0009] Preferably, the clamping assembly includes a mounting frame, a push rod, a hinge rod, a pressure rod, and a guide rod. The mounting frame is fixedly installed at the front end of the support frame, and a mounting frame is also fixedly installed at the left end of the support frame. The upper end of the mounting frame is rotatably connected to the push rod, and the lower end of the mounting frame is rotatably connected to the hinge rod. The lower end of the push rod is rotatably connected to the pressure rod, and the upper end of the push rod is bolted to the guide rod.

[0010] Preferably, the hinge rod is set in an inclined state, and the upper end of the hinge rod is rotatably connected to the pressure rod, and the guide rod is set in a fitted state with the second baffle.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: the laser automatic welding fixture can form symmetrical and uniform constraints on the four sides of the workpiece by pressing the pressure rod, effectively suppressing the displacement and rotation of the workpiece during the welding process, thereby improving the consistency of weld seam alignment. At the same time, the ball screw can realize the repeatable displacement trajectory, reduce static positioning error, and improve weld seam alignment. Then, the rotation of the rotating disk can cover more angles and positions, thereby realizing the switching of welding positions between the same workpiece. 1. By placing the workpiece on top of the support frame and making it fit against the two sets of first baffles, and then pressing down on the pressure rod, the hinge rod is tilted and rotatably connected to the pressure rod and the mounting frame. This causes the push rod to flip through the cooperation between the hinge rod and the pressure rod, and simultaneously drives the guide rod to move. The guide rod then pushes the second baffle against the workpiece, thus fixing the workpiece on top of the support frame through the cooperation between the first and second baffles. Pressing down on the pressure rod creates symmetrical and uniform constraints on all four sides of the workpiece, effectively suppressing the displacement and rotation of the workpiece during the welding process and reducing surface indentations and local deformation caused by single-point stress, thereby improving the consistency of weld seam alignment. 2. The ball screw is connected to the bottom of the base via a threaded connection. By rotating the ball screw, the base can slide within the sliding groove. The movement of the base can then synchronously move the workpiece. Rotating the ball screw allows for repeatable forward and backward displacement trajectories, reducing static positioning errors, improving weld alignment, and thus reducing fluctuations and defect rates. 3. The output end of the motor is connected to the lower shaft of the second gear, and the second gear meshes with the first gear. At the same time, the rotating disk is connected to the top of the base. When the motor runs and the first gear and the second gear mesh, the rotating disk can be driven to rotate, so that the support frame drives the workpiece to rotate synchronously. The rotation of the rotating disk can cover more angles and positions, thereby realizing the switching of welding positions between the same workpiece, and thus improving the continuity of welding. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of the support frame of this utility model; Figure 3 This is a side view of the structure of this utility model; Figure 4 This is a schematic diagram of the main structure of this utility model; Figure 5 This is a cross-sectional structural diagram of the base of this utility model; Figure 6 This utility model Figure 1 A magnified structural diagram at point A in the diagram.

[0013] In the diagram: 1. Mounting base; 2. Sliding groove; 3. Base; 4. Ball screw; 5. Rotating disk; 6. Support frame; 7. First gear; 8. Second gear; 9. Motor; 10. First baffle; 11. Second baffle; 12. Workpiece; 13. Mounting bracket; 14. Push rod; 15. Hinge rod; 16. Pressure rod; 17. Guide rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] To address the technical problem that many existing laser automatic welding fixtures are difficult to clamp evenly on all four sides, making them prone to deformation or uneven clamping force, which in turn causes stress concentration or marks in the welding area, this embodiment discloses the following technical content. Please see Figures 1-6 The laser automatic welding fixture includes a mounting base 1, a sliding groove 2, a base 3, a ball screw 4, a rotating disk 5, a support frame 6, a first gear 7, a second gear 8, a motor 9, a first baffle 10, a second baffle 11, a workpiece 12, a mounting frame 13, a push rod 14, a hinge rod 15, a pressure rod 16, and a guide rod 17. like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, when welding workpiece 12, a support plate with the same inner cavity size as workpiece 12 can be placed from the bottom of workpiece 12. Then, workpiece 12 is placed on top of support frame 6. Because the rear end of the top of mounting base 1 is fixedly installed with a first baffle 10, and the right end of the top of support frame 6 is also fixedly installed with a first baffle 10, when workpiece 12 is placed on top of support frame 6, workpiece 12 is made to fit together with the two sets of first baffles 10. Then, the pressure rods 16 on the left and front ends of support frame 6 can be pressed simultaneously. Because pressure rod 16 is rotatably connected to the lower end shaft of push rod 14, and push rod 14 is rotatably connected to the upper end of mounting frame 13, and a hinge rod 15 is rotatably connected to the lower end of mounting frame 13, and the hinge rod 15 is in an inclined state and rotatably connected to pressure rod 16. When the pressure rod 16 is pressed down, the pressure rod 16 drives the push rod 14 to flip through the hinge rod 15, so that the push rod 14 flips to a vertical state. Because the upper end of the push rod 14 is bolted to the guide rod 17, when the push rod 14 flips, the push rod 14 drives the guide rod 17 to move synchronously. When the guide rod 17 moves, it can push the second baffle 11 closer to the workpiece 12 and make the second baffle 11 fit with the workpiece 12. Thus, the position of the guide rod 17 can be positioned and the workpiece 12 can be fixed through the cooperation between the hinge rod 15 and the pressure rod 16. By pressing the pressure rod 16, symmetrical and uniform constraints can be formed on the four sides of the workpiece 12, effectively suppressing the displacement and rotation of the workpiece 12 during the welding process and reducing surface indentations and local deformation caused by single-point force. like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, after the workpiece 12 is fixed on the top of the support frame 6, the ball screw 4 can be rotated. Because the body of the ball screw 4 is connected to the bottom of the base 3 through a thread, when the ball screw 4 rotates, it causes the base 3 to slide in the groove of the sliding groove 2 on the top of the mounting base 1. Thus, by moving the base 3, the position of the workpiece 12 can be adjusted, thereby ensuring that the workpiece 12 can be aligned with the laser welding equipment. By rotating the ball screw 4, a repeating displacement trajectory can be achieved, reducing static positioning error and improving weld alignment. like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, after the workpiece 12 is aligned with the laser equipment, laser welding can be performed on the workpiece 12. During welding, the motor 9 can be controlled by the controller to run because the output end of the motor 9 is connected to the shaft of the rotating second gear 8 inside the base 3, and the second gear 8 meshes with the first gear 7 on the shaft of the rotating disk 5 about one end inside the base 3. At the same time, the rotating disk 5 is rotatably connected to the top of the base 3, and the lower shaft of the rotating disk 5 is rotatably connected to the inner bottom of the base 3. When the motor 9 is running, the rotation of the rotating disk 5 can be driven to rotate on the top of the base 3 through the cooperation between the first gear 7 and the second gear 8. When the rotating disk 5 is rotating, the workpiece 12 is rotated synchronously through the support frame 6. Thus, multi-directional welding can be achieved through the rotation of the workpiece 12, and the rotation of the rotating disk 5 can cover more angles and positions, thereby realizing the switching of welding positions between the same workpiece 12.

[0016] The above completes a series of operations for this automatic laser welding fixture. Any content not described in detail herein is prior art known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0017] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser automatic welding fixture, including a mounting base (1), characterized in that: The mounting base (1) has sliding grooves (2) fixedly installed at both the left and right ends of the top, and a base (3) is slidably connected to the top of the sliding grooves (2). A rotating disk (5) is rotatably connected to the top of the base (3), and the lower shaft of the rotating disk (5) is rotatably connected to the inner bottom of the base (3). A support frame (6) is fixedly installed on the top of the rotating disk (5). A rotating component is provided inside the base (3), a placement component is provided on the top of the support frame (6), and a clamping component is provided on the side wall of the support frame (6).

2. The laser automatic welding fixture according to claim 1, characterized in that: A ball screw (4) is rotatably connected at the middle position of the top of the mounting base (1), and the body of the ball screw (4) is connected to the bottom of the base (3) by a thread.

3. The laser automatic welding fixture according to claim 1, characterized in that: The rotating assembly includes a first gear (7), a second gear (8), and a motor (9). The first gear (7) is fixedly mounted on the shaft of the rotating disk (5) about one end inside the base (3). The second gear (8) is rotatably connected to the rear end of the top of the base (3), and the second gear (8) meshes with the first gear (7). The motor (9) is fixedly mounted on the rear end of the bottom of the base (3), and the output end of the motor (9) is connected to the lower end shaft of the second gear (8).

4. The laser automatic welding fixture according to claim 1, characterized in that: The placement assembly includes a first baffle (10), a second baffle (11), and a workpiece (12). The first baffle (10) is fixedly installed at the rear end of the top of the support frame (6), and the first baffle (10) is also fixedly installed at the right end of the top of the support frame (6). The second baffle (11) is rotatably connected to the left end of the top of the support frame (6), and the second baffle (11) is also rotatably connected to the front end of the top of the support frame (6). The workpiece (12) is placed on the top of the support frame (6), and the workpiece (12) is in a close fit with the first baffle (10).

5. The laser automatic welding fixture according to claim 1, characterized in that: The clamping assembly includes a mounting bracket (13), a push rod (14), a hinge rod (15), a pressure rod (16), and a guide rod (17). The mounting bracket (13) is fixedly installed at the front end of the support frame (6), and the mounting bracket (13) is also fixedly installed at the left end of the support frame (6). The upper end of the mounting bracket (13) is rotatably connected to the push rod (14), and the lower end of the mounting bracket (13) is rotatably connected to the hinge rod (15). The lower end of the push rod (14) is rotatably connected to the pressure rod (16), and the upper end of the push rod (14) is bolted to the guide rod (17).

6. The laser automatic welding fixture according to claim 5, characterized in that: The hinge rod (15) is set in an inclined state, and the upper end of the hinge rod (15) is rotatably connected to the pressure rod (16). The guide rod (17) and the second baffle (11) are set in a close-fitting state.

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