A turnover support mechanism for a welding positioner

Abstract

The utility model relates to the field of welding positioner support, disclose a kind of turnover support mechanism for welding positioner, including machine body, the bottom end of the machine body is fixedly connected with support frame, the inside of support frame is provided with support assembly, the support assembly includes slider one, the upper surface of slider one is fixedly connected with support block, the upper surface of support block is fixedly connected with guide plate, the bottom end of slider one is fixedly connected with two groups of slider two, and a plurality of groups of evenly distributed rollers are rotatably connected between the two groups of slider two. In the utility model, by stretching two groups of slider one outward, stable support is formed by a plurality of rollers and support blocks after expansion, by the mode of dynamically adjusting the support range, support force can be provided for workpiece turnover, the problem of avoiding the center of gravity of the machine body from shifting due to the excessive length of the workpiece, and the machine body from tipping forward due to the gravitational pull of the workpiece, the stability and safety of the welding operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of welding positioner support, and in particular to a flipping support mechanism for welding positioners. Background Technology

[0002] In the field of modern industrial welding, welding positioners are widely used in industries such as engineering machinery, pressure vessels, and shipbuilding as core equipment for achieving precise adjustment of workpiece posture. Welding positioners drive workpieces to complete actions such as flipping and rotating, adjusting complex welds to the ideal welding position, which is a key guarantee for improving welding quality and reducing labor intensity.

[0003] Current traditional positioners typically use an integrated support base, where the support span and center of gravity are not adjustable. When welding extra-long workpieces (such as large steel structure beams or pipe components), the center of gravity of the workpiece is prone to exceed the support range, causing the machine to tilt forward and fall, which may lead to a safety accident. To address this issue, a flipping support mechanism for welding positioners is proposed. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a flipping support mechanism for a welding positioner, which aims to improve the problem in the prior art that "traditional positioners usually have a fixed support base and cannot adjust the support center of gravity, which makes it easy for the center of gravity to exceed the support range when welding ultra-long workpieces, causing the machine to tilt forward and cause safety accidents".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flipping support mechanism for a welding positioner, comprising a body, a support frame fixedly connected to the bottom end of the body, a support assembly disposed inside the support frame, the support assembly comprising a slider one, a support block fixedly connected to the upper surface of the slider one, a guide plate fixedly connected to the upper surface of the support block, two sets of slider two symmetrically fixedly connected to the bottom end of the slider one, multiple sets of evenly distributed rollers rotatably connected between the two sets of slider two, the multiple sets of rollers contacting the ground to support the slider one, a sliding groove opened in the middle of the support frame, multiple sets of rotating rods rotatably connected through the middle of the slider one, the multiple sets of rotating rods being evenly distributed, the rotating rods sliding on the inner wall of the sliding groove, the diameter of the rotating rods being adapted to the height of the sliding groove, two sets of support frames and support assemblies are provided, and the two sets of support frames and support assemblies are symmetrically arranged on the left and right sides of the body with the center line of the body as the axis of symmetry, the two sets of guide plates being driven to extend by a drive assembly.

[0006] As a further description of the above technical solution:

[0007] The support block is designed in the shape of a dovetail rectangle, and the support block is slidably connected to the support frame.

[0008] As a further description of the above technical solution:

[0009] The support frame is designed as a U-shaped frame.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a connecting block, the two ends of which are fixedly connected to the upper surface of the two sets of support frames and close to the rear surface. Both ends of the connecting block have cavities. A servo motor is fixedly installed on the left end of the connecting block, and a connecting rod is fixedly connected to the right end of the output shaft of the servo motor.

[0012] As a further description of the above technical solution:

[0013] The connecting block is U-shaped with its opening facing downwards.

[0014] As a further description of the above technical solution:

[0015] The connecting rod passes through and is rotatably connected between the inner sides of the U-shaped connecting block. Both ends of the connecting rod are fixedly connected to bevel gears II, and the front sides of both sets of bevel gears II are meshed with bevel gears I.

[0016] As a further description of the above technical solution:

[0017] Both sets of bevel gears have screws fixedly connected to their front surfaces, and the two sets of screws are respectively connected through and rotatably connected to the front surface of the connecting block.

[0018] As a further description of the above technical solution:

[0019] The two sets of bevel gears, bevel gear one and two sets of bevel gears, are respectively disposed inside the two sets of cavities. The two sets of screws are respectively threadedly connected to the inside of the two sets of guide plates, which are used to drive the two sets of guide plates to move synchronously.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, by extending two sets of sliders outward according to the length of the workpiece, and cooperating with multiple sets of rollers and multiple sets of rotating rods, sliding friction is converted into rolling friction, reducing frictional resistance and facilitating outward extension. After expansion, a stable support is formed by multiple sets of rollers and support blocks. By dynamically adjusting the support range, support force can be provided for workpiece flipping, avoiding the problem of machine center of gravity shifting due to excessive workpiece length, and the problem of the machine tipping forward due to the workpiece's gravity pulling the machine body, thus improving the stability and safety of welding operations.

[0022] 2. In this utility model, the servo motor drives the connecting rod to rotate, which in turn drives the two sets of bevel gears and the two sets of bevel gears to rotate, thereby driving the two sets of screws to rotate. This automatically drives the two sets of guide plates to move outward, and drives the two sets of sliders to extend outward. There is no need to manually extend them outward, which improves convenience and adaptability. The combination of the rotating rod and the roller reduces friction, thereby reducing the load on the servo motor during the extension and retraction of the support components and improving the service life of the servo motor. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view and rear view of the connecting block in this utility model;

[0025] Figure 3 This is a three-dimensional cross-sectional view and a disassembled schematic diagram of the connecting block, support frame and guide plate in this utility model;

[0026] Figure 4 This is a three-dimensional cross-sectional view and a split bottom view of the support frame, guide plate, and slider in this utility model.

[0027] Legend:

[0028] 1. Body; 2. Support assembly; 3. Drive assembly; 21. Slider 1; 22. Support block; 23. Guide plate; 24. Support frame; 25. Slide groove; 26. Rotating rod; 27. Roller; 28. Slider 2; 31. Servo motor; 32. Connecting block; 33. Bevel gear 1; 34. Cavity; 35. Bevel gear 2; 36. Connecting rod; 37. Screw. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a tilting support mechanism for a welding positioner, comprising a body 1, which is the main body of the welding positioner. A support frame 24 for supporting the body 1 is fixedly connected to the bottom end of the body 1. A support assembly 2, adjustable according to the workpiece length, is provided inside the support frame 24. The support assembly 2 includes a slider 21, and a support block 22 that is slidably connected to the support frame 24 is fixedly connected to the upper surface of the slider 21. The dovetail-shaped support block 22 can slide stably with the support frame 24, increasing the stability of the sliding. A guide for driving the slider 21 to extend outward is fixedly connected to the upper surface of the support block 22. The bottom end of the plate 23 and the slider 21 is symmetrically fixedly connected to two sets of sliders 28 for supporting multiple sets of rollers 27. Multiple sets of evenly distributed rollers 27 are rotatably connected between the two sets of sliders 28. The multiple sets of rollers 27 contact the ground to support the slider 21. By having multiple sets of rollers 27 contact the ground, friction with the ground can be reduced, thereby reducing the load on the servo motor 31 and improving the service life of the servo motor 31. The middle of the support frame 24 is provided with a groove 25 to provide sliding space for the rotating rod 26. Multiple sets of rotating rods 26 are rotatably connected through the middle of the slider 21 to reduce friction and facilitate the outward extension of the slider 21.

[0031] Furthermore, multiple sets of rotating rods 26 are evenly distributed and slide on the inner wall of the slide groove 25. The diameter of the rotating rods 26 is adapted to the height of the slide groove 25. Two sets of support frames 24 and support components 2 are provided, and the two sets of support frames 24 and support components 2 are symmetrically arranged on the left and right sides of the machine body 1 with the center line of the machine body 1 as the axis of symmetry. The two sets of arrangements can stably support the machine body 1. The two sets of guide plates 23 are driven to extend by the drive component 3. By setting the drive component 3, it can be expanded outward to increase the support effect and stability when the workpiece is flipped. The support block 22 is set as a dovetail rectangle and is slidably connected to the support frame 24. The support frame 24 is set as a U-shaped frame. The U-shaped frame shape can provide space for the slider 21 to slide.

[0032] Reference Figure 1 , Figure 2 and Figure 3The drive assembly 3 includes a connecting block 32 for connecting two sets of support frames 24, increasing stability and supporting the servo motor 31. Both ends of the connecting block 32 are fixedly connected to the upper surface of the two sets of support frames 24 and near the rear surface. Both ends of the connecting block 32 have cavities 34 for providing space for the second bevel gear 35 and the first bevel gear 33 to run. A servo motor 31 for driving the connecting rod 36 and rotating the two sets of second bevel gears 35 is fixedly mounted on the left end of the connecting block 32. The right end of the output shaft of the servo motor 31 is fixedly connected to the connecting rod 36 for connecting the two sets of second bevel gears 35 and making them rotate synchronously. The connecting block 32 is U-shaped with its opening facing downwards. The U-shape allows for a stable connection of the two sets of support frames 24. The connecting rod 36 passes through and rotatably connects between the inner sides of the U-shaped connecting block 32. Both ends of the connecting rod 36 are fixed. The machine body 1 is connected to a bevel gear 35. Both sets of bevel gears 35 are meshed with bevel gears 33 on their front sides. The rotation of bevel gears 35 and bevel gears 33 can synchronously drive the rotation of two sets of screws 37. The rotation of the two sets of screws 37 drives the two sets of guide plates 23 and the two sets of sliders 21 to extend outward synchronously. This can stably support the machine body 1 and prevent the machine body 1 from tipping over due to gravity when the workpiece is long and flipped. The front surfaces of the two sets of bevel gears 33 are fixedly connected to screws 37 that drive the two sets of guide plates 23 to extend forward synchronously. The two sets of screws 37 are respectively connected through and rotatably connected to the front surface of the connecting block 32. The two sets of bevel gears 35 and bevel gears 33 are respectively set inside the two sets of cavities 34. The two sets of screws 37 are respectively threaded inside the two sets of guide plates 23 to drive the two sets of guide plates 23 to move synchronously.

[0033] Working Principle: During use, when the workpiece to be welded is placed on the machine body 1 and needs to be flipped, the servo motor 31 is first started according to the length of the workpiece, causing its output shaft to rotate. This drives the connecting rod 36 and the bevel gears 35 at both ends to rotate synchronously. Since the bevel gears 35 mesh with the bevel gears 33, the two sets of bevel gears 33 rotate with it and drive the screw 37 at the front end to rotate. The screw 37 is threadedly connected to the guide plate 23. The rotational motion of the screw 37 is converted into the linear motion of the guide plate 23, which drives the slider 21 and the support block 22 fixed on it to slide along the support frame 24. Because the support block 22 adopts a dovetail rectangular structure, it forms a stable sliding fit with the U-shaped support frame 24, ensuring that the slider 21 does not deviate during the extension process. At the same time, the rotating rod 26 in the middle of the slider 21 slides along the groove of the support frame 24. 25. Sliding reduces the frictional resistance between slider 1 21 and support frame 24. Slider 28 at the bottom of slider 1 21 drives multiple sets of rollers 27 to contact the ground, converting sliding friction into rolling friction, further reducing the load on servo motor 31, and achieving smooth extension of slider 1 21. Since the two sets of support frames 24 and support components 2 are symmetrically distributed around the center line of machine body 1 and synchronously driven by drive component 3, the two sets of slider 1 21 extend evenly forward of machine body 1, increasing the overall stability of machine body 1 and moving the center of gravity of machine body 1 forward. At this time, the extended support structure forms a stable support system through multiple sets of rollers 27 and support blocks 22, providing balanced support force for the workpiece flipping process, avoiding the center of gravity of machine body 1 from shifting due to excessive workpiece length, and preventing the machine body 1 from tipping forward due to the gravity of the workpiece pulling it.

[0034] After the workpiece has completed the flipping operation, the servo motor 31 rotates in the opposite direction, driving the slider 21 to retract, so that the support component 2 returns to its initial state for the next operation. Through the cooperation of the support component 2 and the drive component 3, the dynamic adjustment of the support range is realized, taking into account both the ease of operation and the stability of the support.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A tilting support mechanism for a welding positioner, comprising a body (1), characterized in that: The bottom end of the body (1) is fixedly connected to a support frame (24), and a support component (2) is provided inside the support frame (24); The support assembly (2) includes a slider one (21), a support block (22) is fixedly connected to the upper surface of the slider one (21), a guide plate (23) is fixedly connected to the upper surface of the support block (22), two sets of slider two (28) are symmetrically fixedly connected to the bottom end of the slider one (21), and multiple sets of evenly distributed rollers (27) are rotatably connected between the two sets of slider two (28). The multiple sets of rollers (27) contact the ground to support the slider one (21). A groove (25) is opened in the middle of the support frame (24). The slider one (21) 1) has multiple sets of rotating rods (26) that run through the middle and rotate. The multiple sets of rotating rods (26) are evenly distributed and slide on the inner wall of the slide groove (25). The diameter of the rotating rod (26) is adapted to the height of the slide groove (25). The support frame (24) and the support assembly (2) are each provided with two sets. The two sets of support frames (24) and support assemblies (2) are symmetrically arranged on the left and right sides of the body (1) with the center line of the body (1) as the axis of symmetry. The two sets of guide plates (23) are driven to extend by the drive assembly (3).

2. The tilting support mechanism for a welding positioner according to claim 1, characterized in that: The support block (22) is designed in the shape of a dovetail rectangle, and the support block (22) is slidably connected to the support frame (24).

3. The tilting support mechanism for a welding positioner according to claim 1, characterized in that: The support frame (24) is designed as a U-shaped frame.

4. The tilting support mechanism for a welding positioner according to claim 1, characterized in that: The drive assembly (3) includes a connecting block (32). The two ends of the connecting block (32) are fixedly connected to the upper surface of the two sets of support frames (24) and close to the rear surface. Both ends of the connecting block (32) are provided with cavities (34). A servo motor (31) is fixedly installed on the left end of the connecting block (32), and a connecting rod (36) is fixedly connected to the right end of the output shaft of the servo motor (31).

5. The tilting support mechanism for a welding positioner according to claim 4, characterized in that: The connecting block (32) is U-shaped with its opening facing downwards.

6. The tilting support mechanism for a welding positioner according to claim 5, characterized in that: The connecting rod (36) passes through and is rotatably connected between the inner sides of the U-shaped connecting block (32). Both ends of the connecting rod (36) are fixedly connected to bevel gears (35), and the front sides of the two sets of bevel gears (35) are meshed with bevel gears (33).

7. The tilting support mechanism for a welding positioner according to claim 6, characterized in that: Both sets of bevel gears (33) have screws (37) fixedly connected to their front surfaces. The two sets of screws (37) are respectively connected to the front surface of the connecting block (32) through and rotating.

8. The tilting support mechanism for a welding positioner according to claim 7, characterized in that: The two sets of bevel gears (35) and bevel gear (33) are respectively disposed inside the two sets of cavities (34), and the two sets of screws (37) are respectively threaded to the inside of the two sets of guide plates (23) to drive the two sets of guide plates (23) to move synchronously.

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