A weld seam welding machine

Abstract

This utility model provides a weld seam welding machine, which includes a machine base, a lifting device, a rotating device, and a clamping device. A gantry frame is provided on the machine base. The lifting device is mounted on the gantry frame and has a welding device mounted on it. The lifting device drives the welding device to move up and down. The rotating device is located on the machine base. The clamping device is used to clamp a cylindrical workpiece to be processed. The clamping device includes a transmission assembly, a first cylinder, and multiple clamping blocks. The transmission assembly is located on the rotating device. The first cylinder is connected to the transmission assembly. The multiple clamping blocks are all located on the transmission assembly. The transmission assembly and the first cylinder cooperate to control the movement of the multiple clamping blocks in directions of mutual approach and mutual distance. This utility model solves the problems of low welding efficiency and limited position adjustment range of the clamping blocks in traditional welding equipment.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and more specifically, to a weld seam welding machine. Background Technology

[0002] In the field of welding cylindrical workpieces, the stability and adjustment flexibility of the clamping device directly affect the weld quality and production efficiency. Traditional welding equipment generally suffers from poor clamping adaptability and low automation. An existing Chinese patent (application number: CN202022803918.3) discloses a clamping tool for a laser welding machine, which uses a rotating handle to drive a rotating rod to move the pressure plate up and down, thereby clamping and fixing the workpiece. While this structure solves the workpiece positioning problem to some extent, it has significant drawbacks: First, clamping adjustment relies on manual operation, requiring the pressure plate position to be adjusted one by one by rotating the handle, which is not only cumbersome and time-consuming but also makes it difficult to ensure the synchronous accuracy of multiple clamping points; second, the clamping device and the welding mechanism are relatively independent, lacking a coordinated motion mechanism, making continuous rotation during the welding process of cylindrical workpieces impossible, resulting in multiple start-stop adjustments required for circumferential welding, severely impacting processing efficiency; third, the position adjustment range of the clamping block is limited, resulting in poor adaptability to cylindrical workpieces of different diameters, requiring recalibration of the tooling when changing workpiece types, further increasing production preparation time. Utility Model Content

[0003] Based on this, in order to solve the problems of low welding efficiency and limited adjustment range of clamping block position in traditional welding equipment, this utility model provides a weld seam welding machine, the specific technical solution of which is as follows:

[0004] A weld seam welding machine, comprising

[0005] The machine platform is equipped with a gantry frame;

[0006] A lifting device is provided on the gantry frame, and a welding device is provided on the lifting device. The lifting device is used to drive the welding device to move up and down.

[0007] A rotating device, wherein the rotating device is mounted on the machine base;

[0008] A clamping device is used to clamp a cylindrical workpiece to be processed. The clamping device includes a transmission assembly, a first cylinder, and a plurality of clamping blocks. The transmission assembly is disposed on the rotating device. The first cylinder is connected to the transmission assembly. The plurality of clamping blocks are disposed on the transmission assembly. The transmission assembly and the first cylinder cooperate to control the plurality of clamping blocks to move in directions that are closer to each other and further away from each other.

[0009] The aforementioned weld seam welding machine, through the coordinated design of the first cylinder and the transmission assembly, enables multiple clamping blocks to move synchronously towards or away from each other radially, solving the problem of uneven clamping force caused by manual adjustment in existing technologies. By adopting pneumatic drive instead of traditional manual operation, and with the mechanical linkage of the transmission assembly, the adjustment time for workpiece changeover is significantly shortened. The integrated design of the clamping and rotating devices allows the workpiece to achieve circumferential movement directly via the rotating device after clamping and fixing. Combined with the lifting device to adjust the welding height, continuous automated operation from clamping to welding is achieved, overcoming the drawbacks of the separation of clamping and welding actions in existing patents, and significantly improving the continuity and efficiency of circumferential weld seam welding. Through the combined structure of the transmission assembly and multiple clamping blocks, the clamping radius can be precisely controlled by the cylinder stroke, adapting to cylindrical workpieces of different diameters. This weld seam welding machine solves the problems of low welding efficiency and limited adjustment range of clamping block positions in traditional welding equipment.

[0010] Furthermore, the rotating device includes a first motor, a gearbox, and a rotating disk. The rotating disk is mounted on the machine base and rotatably connected to the machine base. The output end of the gearbox is connected to the rotating disk, and the output end of the first motor is connected to the input end of the gearbox. The first motor and the gearbox cooperate to drive the rotating disk to rotate.

[0011] Furthermore, the transmission assembly includes a first slide rail, a first sliding block, a first hinge block, a second hinge block, a first hinge arm, and a second hinge arm; the first slide rail is vertically disposed on the rotating disk, and one end of the first sliding block is inserted into the first slide rail and slidably connected to the first slide rail.

[0012] Furthermore, both the first hinge block and the second hinge block are hinged to the first sliding block.

[0013] Furthermore, the first hinge arm is hinged to the first slide rail, one end of the first hinge arm is hinged to the first hinge block, and a clamping block is disposed on the other end of the first hinge arm.

[0014] Furthermore, the second hinge arm is hinged to the first slide rail, one end of the second hinge arm is hinged to the second hinge block, and one of the clamping blocks is disposed on the other end of the second hinge arm.

[0015] Furthermore, the first cylinder is disposed inside the rotating disk, and one end of the first cylinder passes through the rotating disk and is connected to the first sliding block. The first cylinder is used to drive the first sliding block to reciprocate along the first slide rail.

[0016] Furthermore, the lifting device includes a second cylinder, a slide rod, and a lifting platform; the slide rod passes through the gantry frame and is slidably connected to the gantry frame, the second cylinder is disposed on the gantry frame, the second cylinder is connected to the lifting platform, and the slide rod is connected to the lifting platform.

[0017] Furthermore, the welding device includes a robotic arm and a welding head, the robotic arm being mounted on the lifting platform and the welding head being mounted on the robotic arm. Attached Figure Description

[0018] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale; rather, the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0019] Figure 1 This is one of the structural schematic diagrams of the weld seam welding machine according to an embodiment of the present invention;

[0020] Figure 2 This is a second schematic diagram of the structure of the weld seam welding machine according to an embodiment of the present invention;

[0021] Figure 3 yes Figure 1 Enlarged view of part A.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Machine base; 2-Lifting device; 21-Second cylinder; 22-Slide rod; 23-Lifting platform; 3-Welding device; 31-Mechanical arm; 32-Welding head; 4-Rotating device; 41-First motor; 42-Gearbox; 43-Rotating disc; 5-Clamping device; 51-Transmission assembly; 511-First slide rail; 512-First sliding block; 513-First hinge block; 514-Second hinge block; 515-First hinge arm; 516-Second hinge arm; 52-First cylinder; 53-Clamping block; 6-Gantry frame. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0028] like Figure 1-3 As shown, a weld seam welding machine according to one embodiment of the present invention includes a machine base 1, a lifting device 2, a rotating device 4, and a clamping device 5; a gantry frame 6 is provided on the machine base 1; the lifting device 2 is provided on the gantry frame 6, and a welding device 3 is provided on the lifting device 2, which is used to drive the welding device 3 to move up and down; the rotating device 4 is provided on the machine base 1; the clamping device 5 is used to clamp a cylindrical workpiece to be processed, and the clamping device 5 includes a transmission assembly 51, a first cylinder 52, and a plurality of clamping blocks 53; the transmission assembly 51 is provided on the rotating device 4, the first cylinder 52 is connected to the transmission assembly 51, and the plurality of clamping blocks 53 are all provided on the transmission assembly 51, and the transmission assembly 51 and the first cylinder 52 cooperate to control the plurality of clamping blocks 53 to move in directions that are closer to each other and further away from each other.

[0029] The aforementioned weld seam welding machine, through the coordinated design of the first cylinder 52 and the transmission component 51, enables multiple clamping blocks 53 to move synchronously towards or away from each other radially, solving the problem of uneven clamping force caused by manual adjustment in existing technologies. By adopting pneumatic drive instead of traditional manual operation, and with the mechanical linkage of the transmission component 51, the adjustment time for workpiece changeover is significantly shortened. Through the integrated design of the clamping device 5 and the rotating device 4, the workpiece can directly achieve circumferential movement via the rotating device 4 after being clamped and fixed. Combined with the lifting device 2 to adjust the welding height, continuous automated operation from clamping to welding is achieved, overcoming the drawbacks of the separation of clamping and welding actions in existing patents, and significantly improving the continuity and efficiency of circumferential weld seam welding. Through the combined structure of the transmission component 51 and multiple clamping blocks 53, the clamping radius can be precisely controlled by the cylinder stroke, adapting to cylindrical workpieces of different diameters. This weld seam welding machine solves the problems of low welding efficiency and limited position adjustment range of clamping blocks 53 in traditional welding equipment.

[0030] like Figure 1-3As shown, in one embodiment, the rotating device 4 includes a first motor 41, a gearbox 42, and a rotating disk 43. The rotating disk 43 is mounted on the machine base 1 and rotatably connected to the machine base 1. The output end of the gearbox 42 is connected to the rotating disk 43, and the output end of the first motor 41 is connected to the input end of the gearbox 42. The first motor 41 and the gearbox 42 cooperate to drive the rotating disk 43 to rotate. The transmission assembly 51 includes a first slide rail 511, a first sliding block 512, a first hinge block 513, a second hinge block 514, a first hinge arm 515, and a second hinge arm 516. The first slide rail 511 is vertically mounted on the rotating disk 43, and one end of the first sliding block 512 is inserted into the first slide rail 511 and slidably connected to the first slide rail 511. The first hinge block 513 and the second hinge block 514 are both hinged to the first sliding block 512; the first hinge arm 515 is hinged to the first slide rail 511, one end of the first hinge arm 515 is hinged to the first hinge block 513, and a clamping block 53 is disposed on the other end of the first hinge arm 515; the second hinge arm 516 is hinged to the first slide rail 511, one end of the second hinge arm 516 is hinged to the second hinge block 514, and a clamping block 53 is disposed on the other end of the second hinge arm 516; the first cylinder 52 is disposed inside the rotating disk 43, one end of the first cylinder 52 passes through the rotating disk and is connected to the first sliding block 512, and the first cylinder 52 is used to drive the first sliding block 512 to reciprocate along the first slide rail 511. Thus, by cooperating with the first motor 41 and the gearbox 42 to drive the rotating disk 43, the rotation speed can be flexibly adjusted according to welding requirements (such as the uniform speed requirement for circumferential welding and the speed switching of different welding stages), avoiding the speed fluctuation problem of direct motor drive, ensuring smooth circumferential movement of the workpiece, reducing defects such as uneven weld width and irregular forming, and improving the appearance and strength quality of circumferential welding; by adopting the "slide rail + sliding block + hinge structure" design of the transmission component 51, the first sliding block 512 moves back and forth along the first slide rail 511 in a directional manner, which can accurately drive the hinge block and hinge arm to swing synchronously, ensuring that the clamping block 53 moves along the preset trajectory, avoiding the jamming and offset problems that are easy to occur in traditional transmission structures, and further enhancing the synchronicity of the movement of the clamping block 53 and the uniformity of the clamping force.

[0031] like Figure 1-3As shown, in one embodiment, the lifting device 2 includes a second cylinder 21, a slide rod 22, and a lifting platform 23; the slide rod 22 passes through the gantry frame 6 and is slidably connected to the gantry frame 6; the second cylinder 21 is disposed on the gantry frame 6 and is connected to the lifting platform 23; the slide rod 22 is connected to the lifting platform 23; the welding device 3 includes a robotic arm 31 and a welding head 32; the robotic arm 31 is disposed on the lifting platform 23, and the welding head 32 is disposed on the robotic arm 31. Thus, by employing a combination of "second cylinder 21 driving + slide bar 22 guiding" in the lifting device 2, the slide bar 22 can effectively limit the lateral offset of the lifting platform 23 (such as left and right swaying or tilting), ensuring that the lifting platform 23 moves smoothly in the vertical direction. This, in turn, guarantees the height adjustment accuracy of the welding device 3 and avoids deviation between the welding head 32 and the weld seam of the workpiece due to unstable lifting, providing a stable height reference for precise welding. The welding device 3 drives the welding head 32 through the robotic arm 31, which can achieve multi-degree-of-freedom adjustment (backward, left and right, and rotation), and can adjust according to the circumferential seam of the workpiece. The position and angle of the welding head 32 can be flexibly adjusted to solve the problem that the traditional fixed welding head 32 is difficult to adapt to non-standard cylindrical welds and complex circumferential welds, greatly expanding the welding application scenarios of the equipment (such as welding cylindrical workpieces with different installation angles); the lifting driven by the second cylinder 21 and the adjustment of the robotic arm 31 both support automated program control (such as one-button adjustment through solenoid valves and controllers), eliminating the need for manual adjustment of welding height and welding head 32 position, reducing the technical threshold and labor intensity of operators, while reducing human operation errors and ensuring the consistency of batch welding operations.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A weld seam welding machine, characterized in that, include: The machine platform is equipped with a gantry frame; A lifting device is provided on the gantry frame, and a welding device is provided on the lifting device. The lifting device is used to drive the welding device to move up and down. A rotating device, wherein the rotating device is mounted on the machine base; A clamping device is used to clamp a cylindrical workpiece to be processed. The clamping device includes a transmission assembly, a first cylinder, and a plurality of clamping blocks. The transmission assembly is disposed on the rotating device. The first cylinder is connected to the transmission assembly. The plurality of clamping blocks are disposed on the transmission assembly. The transmission assembly and the first cylinder cooperate to control the plurality of clamping blocks to move in directions that are closer to each other and further away from each other.

2. The weld seam welding machine according to claim 1, characterized in that, The rotating device includes a first motor, a gearbox, and a rotating disk. The rotating disk is mounted on the machine base and rotatably connected to the machine base. The output end of the gearbox is connected to the rotating disk, and the output end of the first motor is connected to the input end of the gearbox. The first motor and the gearbox cooperate to drive the rotating disk to rotate.

3. The weld seam welding machine according to claim 2, characterized in that, The transmission assembly includes a first slide rail, a first sliding block, a first hinge block, a second hinge block, a first hinge arm, and a second hinge arm; the first slide rail is vertically disposed on the rotating disk, and one end of the first sliding block is inserted into the first slide rail and slidably connected to the first slide rail.

4. The weld seam welding machine according to claim 3, characterized in that, Both the first hinge block and the second hinge block are hinged to the first sliding block.

5. The weld seam welding machine according to claim 4, characterized in that, The first hinge arm is hinged to the first slide rail, one end of the first hinge arm is hinged to the first hinge block, and a clamping block is disposed on the other end of the first hinge arm.

6. The weld seam welding machine according to claim 4, characterized in that, The second hinge arm is hinged to the first slide rail, one end of the second hinge arm is hinged to the second hinge block, and a clamping block is provided on the other end of the second hinge arm.

7. The weld seam welding machine according to claim 6, characterized in that, The first cylinder is located inside the rotating disk, and one end of the first cylinder passes through the rotating disk and is connected to the first sliding block. The first cylinder is used to drive the first sliding block to reciprocate along the first slide rail.

8. The weld seam welding machine according to claim 1, characterized in that, The lifting device includes a second cylinder, a slide rod, and a lifting platform; the slide rod passes through the gantry frame and is slidably connected to the gantry frame, the second cylinder is mounted on the gantry frame and connected to the lifting platform, and the slide rod is connected to the lifting platform.

9. The weld seam welding machine according to claim 8, characterized in that, The welding device includes a robotic arm and a welding head. The robotic arm is mounted on the lifting platform, and the welding head is mounted on the robotic arm.

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