A welding positioner for SG tubes

Abstract

The utility model relates to SG pipe welding technical field discloses a kind of SG pipe welding positioner, including box, the bottom plate is fixedly installed in the top of box, the top of bottom plate is fixedly installed with compacting mechanism, servo rotating mechanism;The compacting mechanism includes stand, the top of stand is fixedly installed with cylinder, the telescopic end of cylinder is connected with detachable connector, compacting head subassembly moves down and compacts pipeline, ensure the stability of pipeline and SG pipe joint connecting place in welding process, avoid relative displacement of pipeline and SG joint in welding process, and rotary reducer converts the power output by servo motor into low speed and large torque, ensure that the rotation process is stable and does not shake, so that jaw mounting seat drives pneumatic three-jaw chuck to rotate stably, further make pneumatic three-jaw chuck drive SG pipe joint and pipeline to rotate stably, so that welding equipment can weld connecting place.

Description

Technical Field

[0001] This utility model relates to the field of SG pipe welding technology, specifically to an SG pipe welding positioner. Background Technology

[0002] SG pipes (usually referring to "special purpose steel pipes," such as corrosion-resistant steel pipes and high-pressure transmission steel pipes) are widely used in key fields such as chemical industry, energy, water treatment, and nuclear power. In the early days, SG pipe welding mostly used "simple tooling" (such as fixed brackets and V-blocks), which could only achieve preliminary fixation of the workpiece. It required manual adjustment of the angle and posture of the welding torch, which had problems such as "low positioning accuracy, high labor intensity, and large quality fluctuations." It was only suitable for small-batch, low-requirement welding scenarios. With the development of industrial automation, semi-automatic positioners (such as rotating tooling with manually adjustable speed) have emerged, which can realize the rotation of the workpiece. However, manual assistance in positioning (such as manually adjusting the workpiece position) and manual control of the coordination rhythm between the welding torch and the positioner are still required. The degree of automation is low, and it is impossible to link with welding robots, making it difficult to guarantee the quality of weld formation. Utility Model Content

[0003] The purpose of this invention is to provide an SG pipe welding positioner to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an SG tube welding positioner, including a housing, a base plate fixedly installed on the top of the housing, and a pressing mechanism and a servo rotation mechanism fixedly installed on the top of the base plate; The clamping mechanism includes a stand, a cylinder is fixedly installed on the top of the stand, a detachable connector is connected to the telescopic end of the cylinder, a sliding plate is fixedly installed on the side of the detachable connector, a mounting bracket is fixedly installed on the side of the sliding plate, and a clamping head assembly is installed on the mounting bracket. The servo rotation mechanism includes a servo motor, the output end of which is connected to a rotary reducer, the output end of which is connected to a gripper mounting base, and the top of the gripper mounting base is connected to a pneumatic three-jaw chuck, the central axis of which coincides with the central axis of the clamping head assembly.

[0005] Furthermore, the servo motor and rotary reducer are both fixedly connected to the base plate by bolts, the gripper mounting base is detached from the output end of the rotary reducer by bolts, and the pneumatic three-jaw chuck is detached from the gripper mounting base by bolts.

[0006] Furthermore, the clamping head assembly includes a mounting groove, a mounting base, and a fixing bolt. The mounting groove is located at the end of the mounting frame. A positioning rod is fixedly mounted on the top of the mounting base and inserted into a positioning hole on the mounting frame. A connecting bearing is rotatably mounted inside the mounting base, and a replaceable clamping head is rotatably mounted on the inner side of the connecting bearing. The fixing bolt securely connects the mounting frame and the mounting base.

[0007] Furthermore, the replaceable clamping head is welded from a tapered metal head and a threaded rod with a nut, the threaded rod passing through the connecting bearing, and a gasket is provided between the nut and the tapered metal head.

[0008] Furthermore, an L-shaped reinforcing plate and auxiliary components are fixedly installed on the top of the base plate, and the vertical side of the L-shaped reinforcing plate is fixedly connected to the upright frame.

[0009] Furthermore, the auxiliary component includes a second mounting base, which is fixedly mounted on the top of the base plate. A connecting block is fixedly mounted on the side of the second mounting base, and an elastic guide rod is detachably installed inside the connecting block. An arc-shaped limiting block is fixedly installed at one end of the elastic guide rod facing the gripper mounting base, and the arc-shaped limiting block presses against the outer wall of the gripper mounting base.

[0010] Furthermore, the elastic guide rod consists of a guide rod that slides relative to the connecting block and a spring sleeved on the guide rod, and an anti-loosening nut is sleeved on the end of the guide rod away from the arc-shaped limiting block.

[0011] Furthermore, a slide rail is fixedly installed on the side of the upright, and a slider is slidably disposed in the slide rail. The slider is fixedly installed on the outer side wall of the sliding plate. A cover plate is fixedly installed on the side of the upright. The cover plate is L-shaped, with its vertical end passing through the center of the sliding plate and its horizontal end fixedly connected to the outer wall of the upright. The cover plate covers the slide rail and the slider.

[0012] Furthermore, a support leg is fixedly installed at the bottom of the box, and a ground connection mechanism is fixedly installed at the bottom of the support leg. A box door is provided on the front of the box, and a handle is provided on the box door.

[0013] Furthermore, the ground connection mechanism includes an adjustment plate, which is fixedly installed at the bottom of the support leg. The adjustment plate is internally threaded with a leveling bolt, and a support pad is provided at the bottom end of the leveling bolt. The adjustment plate has a mounting hole, and an anchor bolt is inserted into the mounting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The clamping head assembly moves down to clamp the pipe, ensuring the stability of the connection between the pipe and the SG pipe joint during welding and preventing relative displacement between the pipe and the SG pipe joint during welding. The rotary reducer converts the power output of the servo motor into low speed and high torque, ensuring smooth rotation without shaking. This allows the gripper mounting base to drive the pneumatic three-jaw chuck to rotate smoothly, which in turn drives the SG pipe joint and the pipe to rotate smoothly, enabling the welding equipment to weld the connection. Mounting base 1 is provided to connect the replaceable clamping head to the mounting bracket, so that the mounting bracket can drive the replaceable clamping head to rise and fall. When the pipeline needs to be clamped, the replaceable clamping head can move down and press tightly against the pipeline. A connecting bearing is provided so that the replaceable clamping head can rotate relative to mounting base 1. In turn, when the pipeline rotates, the replaceable clamping head can rotate with the pipeline, avoiding wear between the pipeline and the replaceable clamping head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the base plate, pressing mechanism, servo rotation mechanism and auxiliary components of this utility model; Figure 3 This is a schematic diagram of the servo rotation mechanism and auxiliary components of this utility model; Figure 4 This is a schematic diagram of the base plate and clamping mechanism of this utility model; Figure 5 This is a structural schematic diagram of the detachable connector, sliding plate, mounting bracket, and clamping head assembly of this utility model; Figure 6 This is a structural schematic diagram of the exploded view of the clamping head assembly of this utility model; Figure 7 This is a schematic diagram of the ground connection mechanism of this utility model.

[0016] In the diagram: 1. Box body; 101. Support leg; 2. Box door; 201. Handle; 3. Ground connection mechanism; 301. Adjusting plate; 302. Anchor bolt; 303. Leveling bolt; 304. Support pad; 4. Base plate; 5. Clamping mechanism; 501. Upright frame; 502. Cylinder; 503. Detachable connector; 504. Sliding plate; 505. Mounting bracket; 506. Clamping head assembly; 5061. Mounting slot; 5062. Mounting seat one; 5063. Positioning rod 5064. Positioning hole; 5065. Connecting bearing; 5066. Replaceable clamping head; 5067. Fixing bolt; 6. Servo rotation mechanism; 601. Servo motor; 602. Rotary reducer; 603. Gripper mounting base; 604. Pneumatic three-jaw chuck; 7. Auxiliary components; 701. Mounting base two; 702. Connecting block; 703. Elastic guide rod; 704. Arc-shaped limit block; 8. Slide rail; 9. Slider; 10. Baffle plate; 11. L-shaped reinforcing plate. Detailed Implementation

[0017] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figures 1-7 This utility model provides a technical solution: an SG pipe welding positioner, including a housing 1, a base plate 4 fixedly installed on the top of the housing 1, and a pressing mechanism 5 and a servo rotation mechanism 6 fixedly installed on the top of the base plate 4. The clamping mechanism 5 includes a stand 501, a cylinder 502 is fixedly installed on the top of the stand 501, a detachable connector 503 is connected to the telescopic end of the cylinder 502, a sliding plate 504 is fixedly installed on the side of the detachable connector 503, a mounting bracket 505 is fixedly installed on the side of the sliding plate 504, and a clamping head assembly 506 is installed on the mounting bracket 505. The servo rotation mechanism 6 includes a servo motor 601. The output end of the servo motor 601 is connected to a rotary reducer 602. The output end of the rotary reducer 602 is connected to a gripper mounting base 603. A pneumatic three-jaw chuck 604 is connected to the top of the gripper mounting base 603. The central axis of the pneumatic three-jaw chuck 604 coincides with the central axis of the clamping head assembly 506. The pneumatic three-jaw chuck 604 clamps the SG pipe connector. After the robot inserts the corresponding pipe into the SG pipe connector, the cylinder 502 pushes the detachable connector 503 downwards, thereby causing the sliding plate 504 to move downwards. The moving mounting bracket 505 moves downward, which in turn moves the clamping head assembly 506 downward, causing the clamping head assembly 506 to clamp the pipe, ensuring the stability of the connection between the pipe and the SG pipe joint during welding and preventing relative displacement between the pipe and the SG joint during welding. Meanwhile, the rotary reducer 602 converts the power output from the servo motor 601 into low-speed, high-torque, ensuring smooth and wobbly rotation. This allows the gripper mounting base 603 to drive the pneumatic three-jaw chuck 604 to rotate smoothly, which in turn drives the SG pipe joint and the pipe to rotate smoothly, enabling the welding equipment to weld the connection. The servo motor 601 and the rotary reducer 602 are both fixedly connected to the base plate 4 by bolts. The gripper mounting base 603 is detached from the output end of the rotary reducer 602 by bolts. The pneumatic three-jaw chuck 604 is detached from the gripper mounting base 603 by bolts. Since the gripper mounting base 603 is detachable relative to the output end of the rotary reducer 602, the corresponding gripper mounting base 603 can be replaced as needed. Similarly, the corresponding pneumatic three-jaw chuck 604 can also be replaced. The clamping head assembly 506 includes a mounting groove 5061, a mounting base 5062, and a fixing bolt 5067. The mounting groove 5061 is formed at the end of the mounting bracket 505. A positioning rod 5063 is fixedly mounted on the top of the mounting base 5062. The positioning rod 5063 is inserted into a positioning hole 5064 on the mounting bracket 505. A connecting bearing 5065 is rotatably mounted inside the mounting base 5062. A replaceable clamping head 5066 is rotatably mounted on the inner side of the connecting bearing 5065. The fixing bolt 5067 fixes the mounting bracket 505 and the mounting base 5062 together. 2. A mounting base 5062 is provided to connect the replaceable clamping head 5066 to the mounting frame 505, so that the mounting frame 505 can drive the replaceable clamping head 5066 to rise and fall. When the pipeline needs to be clamped, the replaceable clamping head 5066 can move down and press tightly against the pipeline. A connecting bearing 5065 is provided so that the replaceable clamping head 5066 can rotate relative to the mounting base 5062. In this way, when the pipeline rotates, the replaceable clamping head 5066 can rotate with the pipeline, avoiding wear between the pipeline and the replaceable clamping head 5066. The replaceable clamping head 5066 is welded together from a tapered metal head and a threaded rod with a nut, and the threaded rod passes through the connecting bearing 5065. A washer is provided between the nut and the tapered metal head. This design allows the replaceable clamping head 5066 to be removed from the connecting bearing 5065. When removing it, simply unscrew the nut and remove the washer. An L-shaped reinforcing plate 11 and an auxiliary component 7 are fixedly installed on the top of the base plate 4. The vertical side of the L-shaped reinforcing plate 11 is fixedly connected to the upright frame 501. Auxiliary component 7 includes mounting base 2 701, which is fixedly mounted on the top of base plate 4. A connecting block 702 is fixedly mounted on the side of mounting base 2 701. An elastic guide rod 703 is detachably installed inside the connecting block 702. An arc-shaped limiting block 704 is fixedly mounted on one end of the elastic guide rod 703 facing the gripper mounting base 603. The arc-shaped limiting block 704 presses against the outer wall of the gripper mounting base 603. The elastic guide rod 703 presses the arc-shaped limiting block 704 against the outer wall of the gripper mounting base 603 to provide stable support, offset vibrations during welding and rotation, and prevent equipment displacement from affecting positioning accuracy. The elastic guide rod 703 acts as an elastic element to offset vibrations. The elastic guide rod 703 consists of a guide rod that slides relative to the connecting block 702 and a spring sleeved on the guide rod. An anti-loosening nut is sleeved on the end of the guide rod away from the arc-shaped limiting block 704. Because the guide rod can slide relative to the connecting block 702, a nut is threaded on the end of the guide rod to prevent the guide rod from sliding out of the connecting block 702. A slide rail 8 is fixedly installed on the side of the upright frame 501. A slider 9 is slidably arranged inside the slide rail 8. The slider 9 is fixedly installed on the outer side wall of the sliding plate 504. A baffle plate 10 is fixedly installed on the side of the upright frame 501. The baffle plate 10 is L-shaped. The vertical end of the baffle plate 10 passes through the center of the sliding plate 504. The horizontal end of the baffle plate 10 is fixedly connected to the outer wall of the upright frame 501. The baffle plate 10 covers the slide rail 8 and the slider 9. The slide rail 8 and the slider 9 can ensure the stability of the movement trajectory of the sliding plate 504, thereby making the movement trajectory of the mounting frame 505 and the clamping head assembly 506 stable. A support leg 101 is fixedly installed at the bottom of the box 1, and a ground connection mechanism 3 is fixedly installed at the bottom of the support leg 101. A box door 2 is provided on the front of the box 1, and a handle 201 is provided on the box door 2. The box door 2 is provided for opening the box 1, and then inspecting and replacing the internal structure of the box 1. The ground connection mechanism 3 includes an adjustment plate 301, which is fixedly installed at the bottom of the support leg 101. The adjustment plate 301 is internally threaded with a leveling bolt 303, and a support pad 304 is provided at the bottom end of the leveling bolt 303. The adjustment plate 301 has a mounting hole, and an anchor bolt 302 is inserted into the mounting hole. The adjustment plate 301 is adjusted to be parallel to the ground by rotating the leveling bolt 303, which also ensures that the anchor bolt 302 can be inserted into the mounting hole. The adjustment plate 301 is connected to the ground by the anchor bolt 302, thereby fixing the entire equipment to the ground.

[0019] Working principle: In use, the SG pipe connector is placed into the pneumatic three-jaw chuck 604 using an external robotic arm or feeding device. The pneumatic three-jaw chuck 604 then clamps the SG pipe connector. The external robotic arm or feeding device then inserts the pipe into the SG pipe connector. The cylinder 502 is activated, causing the detachable connector 503 to move downwards, which in turn moves the sliding plate 504 downwards. The downward movement of the sliding plate 504 moves the mounting bracket 505 downwards, which in turn moves the clamping head assembly 506 downwards, causing the replaceable clamping head 5066 within the clamping head assembly 506 to clamp the pipe. The servo motor 601 can be turned on, and the rotary reducer 602 converts the power output of the servo motor 601 into low speed and high torque, ensuring a smooth and wobbly rotation process. This allows the gripper mounting base 603 to drive the pneumatic three-jaw chuck 604 to rotate smoothly, which in turn drives the SG pipe joint and pipe to rotate smoothly, enabling the welding equipment to weld the connection. After the pneumatic three-jaw chuck 604 rotates one or two revolutions, the servo motor 601 is turned on to reverse, resetting the pneumatic three-jaw chuck 604 to its original position, preventing the air pipe connected to the pneumatic three-jaw chuck 604 from getting tangled.

[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An SG pipe welding positioner, comprising a housing (1), wherein a base plate (4) is fixedly mounted on the top of the housing (1), characterized in that: A pressing mechanism (5) and a servo rotation mechanism (6) are fixedly installed on the top of the base plate (4). The clamping mechanism (5) includes a stand (501), a cylinder (502) is fixedly installed on the top of the stand (501), a detachable connector (503) is connected to the telescopic end of the cylinder (502), a sliding plate (504) is fixedly installed on the side of the detachable connector (503), a mounting bracket (505) is fixedly installed on the side of the sliding plate (504), and a clamping head assembly (506) is installed on the mounting bracket (505). The servo rotation mechanism (6) includes a servo motor (601), the output end of which is connected to a rotary reducer (602), the output end of which is connected to a jaw mounting base (603), and the top of the jaw mounting base (603) is connected to a pneumatic three-jaw chuck (604), the central axis of which coincides with the central axis of the clamping head assembly (506).

2. The SG pipe welding positioner according to claim 1, characterized in that: The servo motor (601) and rotary reducer (602) are fixedly connected to the base plate (4) by bolts. The gripper mounting base (603) is detached and installed from the output end of the rotary reducer (602) by bolts. The pneumatic three-jaw chuck (604) is detached and installed from the gripper mounting base (603) by bolts.

3. The SG pipe welding positioner according to claim 1, characterized in that: The clamping head assembly (506) includes a mounting groove (5061), a mounting base (5062), and a fixing bolt (5067). The mounting groove (5061) is located at the end of the mounting frame (505). A positioning rod (5063) is fixedly mounted on the top of the mounting base (5062). The positioning rod (5063) is inserted into the positioning hole (5064) on the mounting frame (505). A connecting bearing (5065) is rotatably arranged inside the mounting base (5062). A replaceable clamping head (5066) is rotatably arranged on the inner side of the connecting bearing (5065). The fixing bolt (5067) fixes the mounting frame (505) and the mounting base (5062) together.

4. The SG pipe welding positioner according to claim 3, characterized in that: The replaceable clamping head (5066) is welded from a tapered metal head and a threaded rod with a nut, the threaded rod passing through the connecting bearing (5065), and a gasket is provided between the nut and the tapered metal head.

5. The SG pipe welding positioner according to claim 1, characterized in that: An L-shaped reinforcing plate (11) and an auxiliary component (7) are fixedly installed on the top of the base plate (4). The upright side of the L-shaped reinforcing plate (11) is fixedly connected to the upright frame (501).

6. The SG pipe welding positioner according to claim 5, characterized in that: The auxiliary component (7) includes a second mounting base (701), which is fixedly mounted on the top of the base plate (4). A connecting block (702) is fixedly mounted on the side of the second mounting base (701). An elastic guide rod (703) is detachably installed inside the connecting block (702). An arc-shaped limiting block (704) is fixedly installed on one end of the elastic guide rod (703) facing the gripper mounting base (603). The arc-shaped limiting block (704) presses against the outer wall of the gripper mounting base (603).

7. The SG pipe welding positioner according to claim 6, characterized in that: The elastic guide rod (703) consists of a guide rod that slides relative to the connecting block (702) and a spring sleeved on the guide rod, and an anti-loosening nut is sleeved on the end of the guide rod away from the arc-shaped limiting block (704).

8. The SG pipe welding positioner according to claim 1, characterized in that: A slide rail (8) is fixedly installed on the side of the upright (501), and a slider (9) is slidably arranged inside the slide rail (8). The slider (9) is fixedly installed on the outer side wall of the sliding plate (504). A cover plate (10) is fixedly installed on the side of the upright (501). The cover plate (10) is L-shaped. The vertical end of the cover plate (10) passes through the center of the sliding plate (504). The horizontal end of the cover plate (10) is fixedly connected to the outer wall of the upright (501). The cover plate (10) covers the slide rail (8) and the slider (9).

9. The SG pipe welding positioner according to claim 1, characterized in that: The bottom of the box (1) is fixedly installed with a support leg (101), and the bottom of the support leg (101) is fixedly installed with a ground connection mechanism (3). The front of the box (1) is provided with a box door (2), and the box door (2) is provided with a handle (201).

10. An SG pipe welding positioner according to claim 9, characterized in that: The ground connection mechanism (3) includes an adjustment plate (301), which is fixedly installed at the bottom of the support leg (101). The adjustment plate (301) is internally threaded with a leveling bolt (303), and a support pad (304) is provided at the bottom end of the leveling bolt (303). The adjustment plate (301) has an installation hole, and an anchor bolt (302) is inserted into the installation hole.

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