Pipe frame laser welding mechanism

Abstract

The utility model relates to a pipe frame laser welding mechanism which comprises a robot, a laser welding head, a clamping assembly and a displacement mechanism, the laser welding head is fixedly installed on the robot, and the robot drives the laser welding head to move; the clamping assembly is used for clamping a pipe frame, and the clamping assembly is fixedly installed on the position changing mechanism, so that the position changing mechanism drives the clamping assembly to deflect or rotate, or deflection and rotation can be achieved at the same time. The pipe frame laser welding mechanism is simple in structure, easy and convenient to assemble and disassemble and high in automation degree, the robot moves the laser welding head to the position of a to-be-welded pipe frame, the clamping assembly firmly fixes the to-be-welded pipe frame, the to-be-welded pipe frame deflects or rotates under driving of the position changing mechanism, and the welding efficiency is improved. Therefore, the laser welding head can weld hidden corners more easily; according to the automatic welding device, the welding work efficiency is improved, the device is controlled by a computer, manual operation is omitted, and the risk of huge damage to the health of workers is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, specifically to a laser welding mechanism for pipe racks. Background Technology

[0002] Pipe racks are assembled by welding multiple support pipes together. Adjacent pipes are fixed together by welding. Generally, pipe racks are mostly regular-shaped cuboids or cubes. In the current technology, pipe rack welding is mostly done by welders using handheld welding equipment. This welding method has at least the following disadvantages: First, the work efficiency of handheld welding equipment is very low. For example, after a worker finishes welding two support pipes and starts welding the next set of support pipes, the next set of support pipes must first be fixed, which takes a lot of time. Second, the welding process generates a large amount of toxic gases or fumes, which seriously affects the health of the workers. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a laser welding mechanism for pipe racks.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a pipe rack laser welding mechanism, comprising: a robot, a laser welding head, a clamping assembly, and a displacement mechanism, wherein the laser welding head is fixedly mounted on the robot, and the robot drives the laser welding head to move; the clamping assembly is used to clamp the pipe rack, and the clamping assembly is fixedly mounted on the displacement mechanism, thereby enabling the displacement mechanism to drive the clamping assembly to deflect or rotate, or deflect and rotate simultaneously.

[0005] Furthermore, the displacement mechanism includes a first drive motor, a reducer, a rotary table, and a second drive motor. The first drive motor is connected to the reducer, thereby causing the first drive motor to drive the reducer to deflect. The second drive motor is also connected to the reducer, so that the high speed of the second drive motor is reduced to a low speed by the reducer. The rotary table is mounted on the reducer, thereby causing the reducer to drive the rotary table to rotate. The clamping assembly is fixedly mounted on the rotary table, thereby causing the first drive motor to drive the clamping assembly to deflect, and the second drive motor to drive the clamping assembly to rotate.

[0006] Furthermore, the clamping assembly includes at least one first clamping unit and at least one second clamping unit. The first clamping unit and the second clamping unit have the same structure. The first clamping unit and the second clamping unit clamp and fix the pipe rack to be welded. The first clamping unit includes a first support column, a first support platform, and at least one limiting component. The limiting component is disposed on the first support platform and is used to clamp the pipe rack to be welded, thereby fixing the pipe rack to be welded on the first support platform. The first support platform and the first support column are fixedly installed together, and the first support column is used to support the first support platform.

[0007] Furthermore, the limiting component includes a limiting block with a limiting groove. The limiting groove is recessed inward from the outer surface of the limiting block to a predetermined depth. The pipe rack to be welded is placed in the limiting groove, thereby restricting the movement of the pipe rack to be welded by the limiting block.

[0008] Furthermore, the limiting component also includes a clamping base and a clamp, the clamp being fixedly installed on the clamping base and used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack.

[0009] Furthermore, the first clamping unit also includes at least one first clamping assembly, which is used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack. The first clamping assembly includes a first drive cylinder, a first connector, and a first pressure rod. The first drive cylinder has a first telescopic rod, which is fixedly connected to the first connector, so that when the first telescopic rod extends or retracts, it drives the first connector to rise or fall. The first pressure rod and the first connector are fixedly installed together, so that when the first connector rises or falls, it drives the first pressure rod to rise or fall synchronously. When the first pressure rod descends to a preset position, it clamps the pipe rack to be welded. When the first pressure rod rises, it moves away from the pipe rack, and the pipe rack is released from the limitation imposed by the first clamping assembly.

[0010] Furthermore, the first clamping unit also includes a second clamping assembly, which is used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack. The second clamping assembly includes a second drive cylinder with a second telescopic rod. A clamping block is fixedly installed at the end of the second telescopic rod. The second drive cylinder drives the second telescopic rod to move, and the clamping block clamps the pipe rack to be welded under the action of the second telescopic rod. When the second telescopic rod retracts, the clamping block leaves the pipe rack, and the pipe rack is released from the limitation imposed by the second clamping assembly.

[0011] Furthermore, the first clamping unit also includes a rib-holding assembly, which is used to fix and clamp the reinforcing rib and move it onto the pipe rack for welding the reinforcing rib onto the pipe rack. The rib-holding assembly includes a rotary cylinder, a connecting rod, a clamping cylinder, and grippers. One end of the connecting rod is fixedly connected to the rotary cylinder, so that the rotary cylinder drives the connecting rod to rotate. The other end of the connecting rod is fixedly connected to the clamping cylinder. The grippers are disposed on the clamping cylinder. The clamping cylinder drives the grippers to open or close. The rotary cylinder drives the connecting rod to rotate to a preset position. The clamping cylinder clamps the reinforcing rib and moves it to the preset position on the pipe rack for welding under the action of the rotary cylinder.

[0012] Furthermore, the clamping assembly also includes a first support crossbar and a second support crossbar. The first clamping unit, the second clamping unit, the first support crossbar, and the second support crossbar are fixedly connected together, so that the first support crossbar and the second support crossbar support the first clamping unit and the second clamping unit.

[0013] Furthermore, the clamping assembly also includes a follower plate, and the first support crossbar and the second support crossbar are fixedly installed on the follower plate; the follower plate and the rotary table of the displacement mechanism are fixedly installed together, so that the displacement mechanism drives the follower plate to deflect or rotate, thereby realizing that the follower plate drives the clamping assembly to deflect or rotate.

[0014] The beneficial effects of this application are: the laser welding mechanism for pipe racks provided by this application has a simple structure, is easy to assemble and disassemble, and has a high degree of automation. The robot in this application moves the laser welding head to the pipe rack to be welded, and the clamping component firmly fixes the pipe rack to be welded. Under the drive of the displacement mechanism, the pipe rack to be welded deflects or rotates, thereby making it easier for the laser welding head to weld hidden corners. This application greatly improves the efficiency of welding work, and the welding mechanism is computer controlled, eliminating the need for manual operation and greatly reducing the risk of causing great harm to the health of workers. Attached Figure Description

[0015] Figure 1 A schematic diagram of a tube rack laser welding mechanism provided by this utility model.

[0016] Figure 2 A schematic diagram of the displacement mechanism of a tube rack laser welding mechanism provided by this utility model.

[0017] Figure 3 Another structural schematic diagram of the displacement mechanism of a tube rack laser welding mechanism provided by this utility model.

[0018] Figure 4 A schematic diagram of the clamping assembly of a tube rack laser welding mechanism provided by this utility model.

[0019] Figure 5 for Figure 4 The image shows a partial enlarged view of the clamping assembly of a tube rack laser welding mechanism.

[0020] Figure 6 for Figure 4 Another enlarged view of the clamping assembly of a tube rack laser welding mechanism shown in the figure. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0024] Please refer to Figure 1-6This application provides a pipe rack laser welding mechanism (hereinafter referred to as "the welding mechanism"), which includes: a robot 1, a laser welding head 2, a clamping assembly 3, and a displacement mechanism 4. The laser welding head 2 is fixedly mounted on the robot 1, and the robot 1 drives the laser welding head 2 to move. The clamping assembly 3 is used to clamp the pipe rack, and the clamping assembly 3 is fixedly mounted on the displacement mechanism 4, so that the displacement mechanism 4 can drive the clamping assembly 3 to deflect or rotate, or deflect and rotate simultaneously. It should be noted that although this application does not describe the specific structure of the robot 1 in detail, the robot 1 is not the focus of this application. As long as a commercially available robot can drive the laser welding head 2 to move, it is acceptable. Preferably, the robot 1 described in this application is a Kawasaki robot.

[0025] In one embodiment of this application, the displacement mechanism 4 includes a first drive motor 41, a reducer 42, a rotary table 43, and a second drive motor 45. The first drive motor 41 is connected to the reducer 42, thereby causing the first drive motor 41 to drive the reducer 42 to deflect. The second drive motor 45 is connected to the reducer 42, thereby causing the high speed of the second drive motor 45 to be reduced to a low speed after being reduced by the reducer 42. The rotary table 43 is mounted on the reducer 42, thereby causing the reducer 42 to drive the rotary table 43 to rotate. The clamping assembly 3 is fixedly mounted on the rotary table 43, thereby causing the first drive motor 41 to drive the clamping assembly 3 to deflect, and the second drive motor 45 to drive the clamping assembly 3 to rotate.

[0026] In one embodiment of this application, the clamping assembly 3 includes at least one first clamping unit 34 and at least one second clamping unit 35. The first clamping unit 34 and the second clamping unit 35 have the same structure. The first clamping unit 34 and the second clamping unit 35 clamp and fix the pipe rack 5 to be welded. The first clamping unit 34 includes a first support column 341, a first support platform 342, and at least one limiting component 343. The limiting component 343 is disposed on the first support platform 342 and is used to clamp the pipe rack 5 to be welded, thereby fixing the pipe rack 5 to be welded on the first support platform 342. The first support platform 342 and the first support column 341 are fixedly installed together, and the first support column 341 is used to support the first support platform 342.

[0027] In one embodiment of this application, the limiting component 343 includes a limiting block 3431, and a limiting groove 34310 is provided on the limiting block 3431. The limiting groove 34310 is recessed inward from the outer surface of the limiting block 3431 to a predetermined depth. The pipe rack 5 to be welded is placed in the limiting groove 34310, thereby restricting the movement of the pipe rack 5 to be welded by the limiting block 3431.

[0028] In one embodiment of this application, the limiting component 343 further includes a clamping seat 3432 and a clamp 3433. The clamp 3433 is fixedly installed on the clamping seat 3432 and is used to clamp the pipe rack 5 to be welded, thereby restricting the movement of the pipe rack 5.

[0029] In one embodiment of this application, the first clamping unit 34 further includes at least one first pressing component, which is used to press the pipe rack 5 to be welded, thereby restricting the movement of the pipe rack 5. The first pressing component includes a first driving cylinder 345, a first connecting member 346, and a first pressing rod 347. The first driving cylinder 345 has a first telescopic rod (not shown), which is fixedly connected to the first connecting member 346, so that when the first telescopic rod extends or retracts, it drives the first connecting member 346 to rise or fall. The first pressing rod 347 and the first connecting member 346 are fixedly installed together, so that when the first connecting member 346 rises or falls, it drives the first pressing rod 347 to rise or fall synchronously. When the first pressing rod 347 descends to a preset position, it presses the pipe rack 5 to be welded. When the first pressing rod 347 rises, it moves away from the pipe rack 5, and the pipe rack 5 is released from the limitation imposed by the first pressing component.

[0030] In one embodiment of this application, the first clamping unit 34 further includes a second pressing assembly, which is used to press the pipe rack 5 to be welded, thereby restricting the movement of the pipe rack 5. The second pressing assembly includes a second driving cylinder 344, which has a second telescopic rod 3440. A pressing block 3441 is fixedly installed at the end of the second telescopic rod 3440. The second driving cylinder 344 drives the second telescopic rod 3440 to move. The pressing block 3441 presses the pipe rack 5 to be welded under the drive of the second telescopic rod 3440. When the second telescopic rod 3440 retracts, the pressing block 3441 leaves the pipe rack 5, and the pipe rack 5 is released from the limitation by the second pressing assembly.

[0031] In one embodiment of this application, the first clamping unit 34 further includes a rib-holding assembly for fixing and moving the reinforcing rib onto the pipe rack 5, thereby welding the reinforcing rib onto the pipe rack 5. The rib-holding assembly includes a rotary cylinder 348, a connecting rod 349, a clamping cylinder 3410, and a gripper 3411. One end of the connecting rod 349 is fixedly connected to the rotary cylinder 348, thereby causing the rotary cylinder 348 to drive the connecting rod. 349 rotates; the other end of the connecting rod 349 is fixedly connected to the clamping cylinder 3410, the gripper 3411 is disposed on the clamping cylinder 3410, the clamping cylinder 3410 drives the gripper 3411 to open or close, the rotating cylinder 348 drives the connecting rod 349 to rotate to a preset position, the clamping cylinder 3410 clamps the reinforcing rib, and under the drive of the rotating cylinder 348, the reinforcing rib is moved to the preset position of the pipe rack 5 for welding.

[0032] In one embodiment of this application, the clamping assembly 3 further includes a first support crossbar 32 and a second support crossbar 33. The first clamping unit 34, the second clamping unit 35, the first support crossbar 32, and the second support crossbar 33 are fixedly connected together, so that the first support crossbar 32 and the second support crossbar 33 support the first clamping unit 34 and the second clamping unit 35.

[0033] In one embodiment of this application, the clamping assembly further includes a follower plate 31, and the first support crossbar 32 and the second support crossbar 33 are fixedly installed on the follower plate 31; the follower plate 31 and the rotary table 43 of the displacement mechanism 4 are fixedly installed together, so that the displacement mechanism 4 drives the follower plate 31 to deflect or rotate, thereby realizing that the follower plate 31 drives the clamping assembly 3 to deflect or rotate.

[0034] The laser welding mechanism for pipe racks provided in this application has a simple structure, is easy to assemble and disassemble, and has a high degree of automation. The robot in this application moves the laser welding head to the pipe rack to be welded, and the clamping component firmly fixes the pipe rack to be welded. Under the drive of the displacement mechanism, the pipe rack to be welded deflects or rotates, so that the laser welding head can more easily weld hidden corners. This application greatly improves the welding efficiency, and the welding mechanism is computer controlled, eliminating the need for manual operation and greatly reducing the risk of causing great harm to workers' health.

[0035] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A laser welding mechanism for pipe racks, characterized in that, include: The system includes a robot, a laser welding head, a clamping assembly, and a positioning mechanism. The laser welding head is fixedly mounted on the robot, and the robot drives the laser welding head to move. The clamping assembly is used to clamp a pipe rack and is fixedly mounted on the positioning mechanism, thereby enabling the positioning mechanism to drive the clamping assembly to deflect or rotate, or deflect and rotate simultaneously.

2. The tube rack laser welding mechanism according to claim 1, characterized in that, The displacement mechanism includes a first drive motor, a reducer, a rotary table, and a second drive motor. The first drive motor and the reducer are connected so that the first drive motor drives the reducer to deflect. The second drive motor is connected to the reducer, so that the high speed of the second drive motor is reduced to a low speed after being reduced by the reducer; the rotary table is mounted on the reducer, so that the reducer drives the rotary table to rotate; the clamping assembly is fixedly mounted on the rotary table, so that the first drive motor drives the clamping assembly to deflect, and the second drive motor drives the clamping assembly to rotate.

3. The tube rack laser welding mechanism according to claim 2, characterized in that, The clamping assembly includes at least one first clamping unit and at least one second clamping unit. The first clamping unit and the second clamping unit have the same structure. The first clamping unit and the second clamping unit clamp and fix the pipe rack to be welded. The first clamping unit includes a first support column, a first support platform, and at least one limiting component. The limiting component is disposed on the first support platform and is used to clamp the pipe rack to be welded, thereby fixing the pipe rack to be welded on the first support platform. The first support platform and the first support column are fixedly installed together, and the first support column is used to support the first support platform.

4. The tube rack laser welding mechanism according to claim 3, characterized in that, The limiting component includes a limiting block with a limiting groove. The limiting groove is recessed inward from the outer surface of the limiting block to a predetermined depth. The pipe rack to be welded is placed in the limiting groove, thereby restricting the movement of the pipe rack to be welded by the limiting block.

5. The tube rack laser welding mechanism according to claim 4, characterized in that, The limiting component also includes a clamping base and a clamp. The clamp is fixedly installed on the clamping base and is used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack.

6. The tube rack laser welding mechanism according to claim 5, characterized in that, The first clamping unit further includes at least one first clamping assembly, which is used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack. The first clamping assembly includes a first drive cylinder, a first connector, and a first pressure rod. The first drive cylinder has a first telescopic rod, which is fixedly connected to the first connector, so that when the first telescopic rod extends or retracts, it drives the first connector to rise or fall. The first pressure rod and the first connector are fixedly installed together, so that when the first connector rises or falls, it drives the first pressure rod to rise or fall synchronously. When the first pressure rod descends to a preset position, it clamps the pipe rack to be welded. When the first pressure rod rises, it moves away from the pipe rack, and the pipe rack is released from the limitation imposed by the first clamping assembly.

7. The tube rack laser welding mechanism according to claim 6, characterized in that, The first clamping unit further includes a second clamping assembly, which is used to clamp the pipe rack to be welded, thereby restricting the movement of the pipe rack. The second clamping assembly includes a second driving cylinder with a second telescopic rod. A clamping block is fixedly installed at the end of the second telescopic rod. The second driving cylinder drives the second telescopic rod to move, and the clamping block clamps the pipe rack to be welded under the action of the second telescopic rod. When the second telescopic rod retracts, the clamping block leaves the pipe rack, and the pipe rack is released from the limitation imposed by the second clamping assembly.

8. The tube rack laser welding mechanism according to claim 7, characterized in that, The first clamping unit further includes a rib-holding assembly, which is used to fix and clamp the reinforcing rib and move it onto the pipe rack for welding the reinforcing rib onto the pipe rack. The rib-holding assembly includes a rotary cylinder, a connecting rod, a clamping cylinder, and grippers. One end of the connecting rod is fixedly connected to the rotary cylinder, so that the rotary cylinder drives the connecting rod to rotate. The other end of the connecting rod is fixedly connected to the clamping cylinder. The grippers are disposed on the clamping cylinder. The clamping cylinder drives the grippers to open or close. The rotary cylinder drives the connecting rod to rotate to a preset position. The clamping cylinder clamps the reinforcing rib and moves it to the preset position on the pipe rack for welding under the action of the rotary cylinder.

9. The tube rack laser welding mechanism according to claim 8, characterized in that, The clamping assembly further includes a first support crossbar and a second support crossbar. The first clamping unit, the second clamping unit, the first support crossbar, and the second support crossbar are fixedly connected together, so that the first support crossbar and the second support crossbar support the first clamping unit and the second clamping unit.

10. The tube rack laser welding mechanism according to claim 9, characterized in that, The clamping assembly further includes a follower plate, and the first support crossbar and the second support crossbar are fixedly installed on the follower plate; the follower plate and the rotary table of the displacement mechanism are fixedly installed together, so that the displacement mechanism drives the follower plate to deflect or rotate, thereby realizing that the follower plate drives the clamping assembly to deflect or rotate.

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