A rotary fusion splicer

Abstract

The utility model discloses a kind of rotary fusion machines, including rack, rack side is provided with machine head, machine head is transversely provided with rotatable clamping jaw, one end of clamping jaw is inserted into machine head and is fixedly connected with the output end of driving device, driving device is electrically connected to control system;The side of the top of rack close to clamping jaw is provided with annular cutting machine, the center of gyration of annular cutting machine is aligned with the center of clamping jaw, annular cutting machine is electrically connected to control system;The side of the top of rack annular cutting machine away from machine head is provided with movable clamping device, clamping device includes adjustable lower clamping device and upper clamping device. Through the above setting, overflow generated by fusion can be cleaned in time, and it is convenient to be applicable to the fusion of various pipelines.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a rotary welding machine. Background Technology

[0002] Plastic piping systems are widely used in water supply and drainage, chemical, and agricultural irrigation fields due to their advantages such as corrosion resistance, light weight, and ease of processing. In these systems, it is often necessary to connect two plastic pipe sections. Rotary welding (also known as friction welding) is a common and efficient connection technology. Its principle is to use a high-speed rotating pipe section to contact and rub against the end face of a stationary pipe section. The resulting high temperature melts the plastic at the contact surface, and under pressure, they fuse together, forming a strong, sealed connection after cooling.

[0003] However, during friction welding, molten plastic overflows from the joint, forming an irregular ring of spillage. This spillage not only affects the pipe's appearance but can also cause turbulence or accumulate impurities during fluid transport. Current technology typically involves manual removal or cutting after welding, which is inefficient, produces uneven cuts, and risks damaging the pipe. Furthermore, traditional clamping devices lack convenient height adjustment mechanisms for plastic pipes of different diameters. Replacing the entire clamping module or making rough adjustments manually is cumbersome, results in low positioning accuracy, and severely impacts production efficiency and the consistency of welding quality. Utility Model Content

[0004] In view of the above-mentioned defects, this utility model provides a rotary welding machine that can promptly clean up the overflow generated during welding and is conveniently applicable to welding of various pipelines.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary welding machine, comprising a frame, a machine head disposed on one side of the frame, a rotatable gripper disposed laterally at the machine head, one end of the gripper being inserted into the machine head and fixedly connected to the output end of a drive device, the drive device being electrically connected to a control system; a ring cutter disposed on the top of the frame near the gripper, the rotation center of the ring cutter being aligned with the center of the gripper, the ring cutter being electrically connected to a control system; a movable clamping device disposed on the top of the frame away from the machine head of the ring cutter, the clamping device comprising an adjustable lower clamping device and an upper clamping device.

[0006] As a further improvement of this utility model, the lower clamping device includes a plurality of first servo electric cylinders fixedly connected to the top of the frame, the output ends of the plurality of first servo electric cylinders being fixedly connected to a base plate, the top of the base plate being fixedly connected to a plurality of first electric guide rails, the plurality of first electric guide rails being arranged parallel to the line connecting the center of the ring cutting machine and the gripper, the first electric guide rails being electrically connected to the control system; a plurality of first electric guide rail sliders are fitted on the first electric guide rails, the top of the first electric guide rail sliders being fixedly connected to a lower fixing plate, the top of the lower fixing plate being fixedly connected to a lower clamping block.

[0007] As a further improvement of this utility model, a stationary contact of a sensor is fixedly connected to the side of the base plate near the ring cutting machine, and a moving contact of a sensor is provided on the side of the lower fixed plate near the ring cutting machine. The moving contact and the stationary contact are matched and electrically connected to the control system.

[0008] As a further improvement of this utility model, a lower positioning groove is provided on the top of the lower fixing plate, and a lower positioning protrusion is provided on the bottom of the lower clamping block, wherein the lower positioning protrusion matches the lower positioning groove.

[0009] As a further improvement of this utility model, the upper clamping device includes a stand, on which an electric cylinder base is fixedly connected. A second servo electric cylinder is fixedly connected to the bottom of the electric cylinder base and is electrically connected to the control system. A top plate is fixedly connected vertically downward to the output end of the second servo electric cylinder. A second electric guide rail is fixedly connected to the bottom of the top plate. The second electric guide rail is parallel to the first electric guide rail. A plurality of second electric guide rail sliders are fitted on the second electric guide rail. An upper fixing plate is fixedly connected to the bottom of the second electric guide rail sliders, and an upper clamping block is fixedly connected to the bottom of the upper fixing plate.

[0010] As a further improvement of this utility model, the bottom of the upper fixing plate is provided with an upper positioning groove, and the top of the upper clamping block is provided with an upper positioning protrusion, the upper positioning protrusion and the upper positioning groove are matched.

[0011] The beneficial effects of this utility model are: 1. The overall height of the lower clamping device can be precisely adjusted by several first servo electric cylinders synchronously controlled by the control system; simultaneously, the upper clamping device achieves precise up-and-down movement through second servo electric cylinders. Combined with replaceable upper and lower clamping blocks that are quickly positioned via positioning protrusions and grooves, the equipment can quickly adapt to plastic pipes of different diameters, eliminating the need for cumbersome mechanical adjustments or shimming processes, greatly shortening preparation time and improving production efficiency.

[0012] 2. By incorporating a sensor consisting of moving and stationary contacts, the welding completion of the two pipe sections can be accurately detected during the welding process. Upon completion of welding, the sensor immediately sends an electrical signal to the control system, automatically stopping the advance and shutting off the rotation drive to prevent the pipe from becoming too short after welding, thus avoiding waste. Simultaneously, the sensor is linked to a ring cutter via the control system, allowing the system to initiate a synchronous, concentric ring cut on any excess plastic at the joint the instant welding is complete. This fully automated process requires no manual intervention, resulting in a neat and aesthetically pleasing pipe joint and eliminating the need for subsequent secondary processing, significantly improving overall operational efficiency. Attached Figure Description

[0013] Figure 1 This is an isometric schematic diagram of the rotary welding machine of this utility model; Figure 2 This is the first schematic diagram of a rotary welding machine; Figure 3 This is the first schematic diagram of a rotary welding machine.

[0014] In the diagram: 1-Frame, 2-Head, 3-Gripper, 4-Circular Cutting Machine, 5-Upper Clamping Device, 500-Electric Cylinder Base, 501-Second Servo Electric Cylinder, 502-Horizontal Plate, 503-Top Plate, 504-Second Electric Guide Rail, 505-Second Electric Guide Rail Slider, 506-Upper Fixed Plate, 5061-Upper Positioning Groove, 507-Upper Clamping Block, 5071-Upper Positioning Protrusion, 5072-Upper Clamping Groove, 508-Column, 6-Lower Clamping Device, 600-First Servo Electric Cylinder, 601-Base Plate, 602-First Electric Guide Rail, 603-First Electric Guide Rail Slider, 604-Lower Fixed Plate, 6041-Lower Positioning Groove, 605-Moving Contact, 606-Static Contact, 607-Lower Clamping Block, 6071-Lower Positioning Protrusion, 6072-Lower Clamping Groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The directional terms mentioned in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the present utility model. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0016] like Figures 1 to 3The rotary welding machine shown includes a frame 1, with a machine head 2 disposed on one side of the frame 1. A rotatable gripper 3 is laterally disposed on the machine head 2, with one end of the gripper 3 passing through the machine head 2 and fixedly connected to the output end of a drive device. The drive device is electrically connected to a control system.

[0017] A ring cutter 4 is mounted on the top of the frame 1, near the gripper 3. The rotation center of the ring cutter 4 is aligned with the center of the gripper 3. The ring cutter 4 is electrically connected to the control system.

[0018] As a further illustration of this example, the ring cutter 4 can perform ring cutting on the plastic overflowing at the weld joint.

[0019] A clamping device is provided on the side of the ring cutter 4 at the top of the frame 1, away from the head 2. The clamping device includes a lower clamping device 6 and an upper clamping device 5. The lower clamping device 6 includes several vertically arranged first servo electric cylinders 600, all of which are electrically connected to the control system. The first servo electric cylinders 600 are fixedly connected to the top of the frame 1, and a base plate 601 is fixedly connected to the top of the output end of the first servo electric cylinders 600. A stationary contact 606 of a sensor is fixedly connected to the side of the base plate 601 near the ring cutter 4.

[0020] Several first electric guide rails 602 are fixedly connected to the top of the base plate 601. The first electric guide rails 602 are arranged parallel to the line connecting the center of the ring cutter 4 and the gripper 3. The first electric guide rails 602 are electrically connected to the control system.

[0021] A plurality of first electric guide rail sliders 603 are fitted onto the first electric guide rail 602, and a lower fixing plate 604 is fixedly connected to the top of the first electric guide rail sliders 603. A moving contact 605 of a sensor is provided on the side of the lower fixing plate 604 near the ring cutting machine 4, and the moving contact 605 of the sensor matches a stationary contact 606 fixed on the base plate 601. Both the moving contact 605 and the stationary contact 606 of the sensor are electrically connected to the control system.

[0022] As a further illustration of this example, the electrical signal fed back to the control system through the contact between the moving contact 605 and the stationary contact 606 of the sensor confirms that the two pipe sections have reached the designated position during welding.

[0023] The lower fixing plate 604 has an inverted trapezoidal lower positioning groove 6041 at its top. A lower clamping block 607 is provided at the top of the lower fixing plate 604, and a lower positioning protrusion 6071 is provided at the bottom of the lower clamping block 607. The lower positioning protrusion 6071 fits into the lower positioning groove 6041 at the top of the lower fixing plate 604. The lower fixing plate 604 and the lower clamping block 607 are fixedly connected by bolts. A lower clamping groove 6072 is provided at the top of the lower clamping block 607, and the lower clamping groove 6072 is a semi-cylindrical groove.

[0024] As a further illustration of this example, by controlling the output ends of several first servo electric cylinders 600 to lift synchronously through the control system, the height of the lower clamping device 6 can be increased, thereby adapting to the welding of plastic pipes of different diameters.

[0025] An upper clamping device 5 is provided on one side of the lower clamping device 6. The upper clamping device 5 includes a frame, which includes two vertically arranged columns 508. A horizontal plate 502 is fixedly connected to the top of the columns 508, and an electric cylinder base 500 is fixedly connected to the horizontal plate 502. A second servo electric cylinder 501 is fixedly connected to the bottom of the electric cylinder base 500, and the second servo electric cylinder 501 is electrically connected to the control system.

[0026] The output end of the second servo electric cylinder 501 passes through a through hole in the top plate 503. The output end of the second servo electric cylinder 501 is fixedly connected to the top plate 503. Several second electric guide rails 504 are fixedly connected to the bottom of the top plate 503. The second electric guide rails 504 are all arranged parallel to the first electric guide rail 602 and are electrically connected to the control system. Several second electric guide rail sliders 505 are fitted on the second electric guide rails 504. The bottom of the second electric guide rail sliders 505 is fixedly connected to an upper fixing plate 506.

[0027] The upper fixing plate 506 has an inverted trapezoidal upper positioning groove 5061 at its bottom. An upper clamping block 507 is provided at the bottom of the upper fixing plate 506, and an upper positioning protrusion 5071 is provided at the top of the upper clamping block 507. The upper positioning protrusion 5071 fits into the upper positioning groove 5061 at the bottom of the upper fixing plate 506. The upper clamping block 507 is fixedly connected to the upper fixing plate 506 by bolts. An upper clamping groove 5072 is provided at the bottom of the upper clamping block 507, and the upper clamping groove 5072 is a semi-cylindrical groove that matches the lower clamping groove 6072.

[0028] As a further illustration of this example, by controlling the output end of the second servo electric cylinder 501 to move downward through the control system, the upper clamping device 5 can move downward to clamp the plastic pipe at the top of the lower clamping device 6, and the control system can control it to move towards the side closer to the machine head 2.

[0029] Working principle and usage process of this utility model: Select the lower clamping block 607 and the upper clamping block 507 according to the pipe diameter. The positioning protrusions on the lower clamping block 607 and the upper clamping block 507 match the positioning grooves on the lower fixing plate 604 and the upper fixing plate 506, thereby ensuring the fit between the lower clamping groove 6072 and the upper clamping groove 5072.

[0030] One half-tube is clamped by the gripper 3, and the other half-tube is fixed between the upper clamping block 507 and the lower clamping block 607. The control system starts the drive device, so that the gripper 3 and the half-tube are in a high-speed rotation state. Then, the control system controls the other half-tube between the upper clamping block 507 and the lower clamping block 607 to move closer to the machine head 2. When the two half-tubes come into contact, due to the high-speed rotation of one half-tube, the contact surface of the two melts through friction and joins together, thus completing the rotational welding of the two half-tubes.

[0031] When the moving contact 605 of the sensor in the clamping device contacts the stationary contact 606 of the sensor, it indicates that the welding is complete. The sensor sends an electrical signal to the control system, the clamping device stops moving and the drive device shuts down. At this time, the ring cutter 4 starts to cut off the overflowing plastic welding material at the connection of the two pipe sections, thus making the outside of the connection neat and beautiful.

[0032] After the cutting is completed, the jaw 3 is released, and the clamping device moves the welded plastic tube away from the jaw 3 back to its original position. Then the upper clamping device 5 and the lower clamping device 6 separate, and the welded plastic tube is removed from the lower clamping device 6.

[0033] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above-described embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A rotary welding machine, characterized in that, The machine includes a frame (1), a head (2) is provided on one side of the frame (1), and a rotatable gripper (3) is provided laterally at the head (2). One end of the gripper (3) passes through the head (2) and is fixedly connected to the output end of the drive device. The drive device is electrically connected to the control system. A ring cutter (4) is provided on the top of the frame (1) near the gripper (3). The rotation center of the ring cutter (4) is aligned with the center of the gripper (3). The ring cutter (4) is electrically connected to the control system. A movable clamping device is provided on the top side of the ring cutter (4) away from the head (2). The clamping device includes an adjustable lower clamping device (6) and an upper clamping device (5).

2. The rotary welding machine according to claim 1, characterized in that, The lower clamping device (6) includes several first servo electric cylinders (600) fixedly connected to the top of the frame (1). The output ends of the several first servo electric cylinders (600) are fixedly connected to a base plate (601). Several first electric guide rails (602) are fixedly connected to the top of the base plate (601). The several first electric guide rails (602) are all arranged parallel to the line connecting the center of the ring cutting machine (4) and the gripper (3). The first electric guide rails (602) are electrically connected to the control system. Several first electric guide rail sliders (603) are provided on the first electric guide rails (602). The top of the first electric guide rail sliders (603) is fixedly connected to a lower fixing plate (604). The top of the lower fixing plate (604) is fixedly connected to a lower clamping block (607).

3. The rotary welding machine according to claim 2, characterized in that, The stationary contact (606) of the sensor is fixedly connected to the side of the base plate (601) near the ring cutter (4), and the moving contact (605) of the sensor is provided on the side of the lower fixed plate (604) near the ring cutter (4). The moving contact (605) and the stationary contact (606) are matched and electrically connected to the control system.

4. The rotary welding machine according to claim 2, characterized in that, The lower fixing plate (604) has a lower positioning groove (6041) at the top, and the lower clamping block (607) has a lower positioning protrusion (6071) at the bottom, and the lower positioning protrusion (6071) matches the lower positioning groove (6041).

5. The rotary welding machine according to claim 2, characterized in that, The upper clamping device (5) includes a stand, on which an electric cylinder base (500) is fixedly connected. A second servo electric cylinder (501) is fixedly connected to the bottom of the electric cylinder base (500). The second servo electric cylinder (501) is electrically connected to the control system. A top plate (503) is fixedly connected vertically downward at the output end of the second servo electric cylinder (501). A second electric guide rail (504) is fixedly connected to the bottom of the top plate (503). The second electric guide rail (504) is parallel to the first electric guide rail (602). A plurality of second electric guide rail sliders (505) are fitted on the second electric guide rail (504). An upper fixing plate (506) is fixedly connected to the bottom of the second electric guide rail sliders (505). An upper clamping block (507) is fixedly connected to the bottom of the upper fixing plate (506).

6. The rotary welding machine according to claim 5, characterized in that, The upper fixing plate (506) has an upper positioning groove (5061) at the bottom, and the upper clamping block (507) has an upper positioning protrusion (5071) at the top. The upper positioning protrusion (5071) and the upper positioning groove (5061) are matched.

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