Pipe butt joint tool for machining

Abstract

The utility model discloses a pipe joint butt joint frock for machining relates to pipe joint butt joint technical field, including the adjusting sleeve, the top fixed mounting of adjusting sleeve has the protective cover, the bottom of adjusting sleeve is provided with the base shell, the top rotatory mounting of base shell has screw rod, the screw rod is connected with the adjusting sleeve thread, the both sides of protective cover top slide mounting has the support frame for supporting the pipe joint, the top rotatory mounting of support frame has the cylinder through the axle pin, the utility model discloses a adjusting sleeve, protective cover, base shell, support frame, cylinder, clamping jaw drive mechanism, clamping jaw pull mechanism and jacking self -lock drive mechanism are set up, reached the height regulation and reliable self -locking, the advantage of adapting multichannel, solved traditional pipe joint butt joint frock height regulation efficiency low and easy to drift, need manual replacement adaptation component to adapt different pipe diameter, long pipe joint single point support easy deformation and butt joint coaxiality is poor, the problem that pipe joint support process is easy to cause surface damage because of friction.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting docking technology, specifically a pipe fitting docking tool for machining. Background Technology

[0002] In the field of machining, pipe fitting docking is a core step in pipeline system installation and equipment connection. Its docking accuracy directly determines the sealing performance, pressure resistance, and overall assembly quality of the subsequent pipeline. Currently, the commonly used pipe fitting docking fixtures in the industry mainly rely on manual positioning or simple mechanical support structures to fix and dock the pipe fittings. However, these traditional fixtures have many technical pain points in practical applications and cannot meet the processing requirements of high precision and high efficiency. First, traditional tooling height adjustment often uses manual screw or cylinder drive. Manual adjustment is not only cumbersome and inefficient, but also makes it difficult to ensure the height consistency of the pipes on both sides. While cylinder drive can improve adjustment speed, it is prone to height drift during adjustment due to air pressure fluctuations, and lacks a reliable self-locking mechanism. If air pressure leakage occurs during the docking operation, it can easily cause the tooling height to shift, leading to docking deviation. Second, for clamping pipes of different diameters, traditional tooling requires manual replacement of suitable support components or manual adjustment of the clamping distance. This not only increases the operation steps and prolongs the tooling changeover time, but may also cause the central axis of the pipe to deviate due to manual adjustment errors, affecting the coaxiality of the docking. In addition, the pipe support structure of traditional tooling is mostly a fixed support surface. During the pipe docking process, if the position of the pipe needs to be finely adjusted, the sliding friction between the support surface and the outer wall of the pipe can easily cause scratches on the pipe surface. Especially for high-precision polished pipes or thin-walled pipes, irreversible damage can easily occur, increasing the risk of product scrap. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this utility model is to provide a pipe fitting docking fixture for machining, which has the advantages of height adjustment and reliable self-locking, and adaptability to multiple pipe diameters. It solves the problems of low height adjustment efficiency and easy drift of traditional pipe fitting docking fixtures, the need for manual replacement of adapter components to adapt to different pipe diameters, easy deformation of long pipe fittings under single-point support and poor coaxiality of docking, and easy surface damage caused by friction during pipe fitting support.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe fitting docking fixture for machining, comprising an adjusting sleeve, a protective cover fixedly installed on the top of the adjusting sleeve, a base shell provided at the bottom of the adjusting sleeve, a screw rotatably installed on the top of the base shell, the screw being threadedly connected to the adjusting sleeve, support frames for supporting pipe fittings slidably installed on both sides of the top of the protective cover, and a roller rotatably installed on the top of the support frame via a shaft pin; and further comprising a gripper drive mechanism, a gripper pulling mechanism, and a lifting self-locking drive mechanism; The gripper pulling mechanism is located at the bottom of the support frame and is used to pull the support frame to move laterally closer and further away; The gripper drive mechanism is located inside the protective cover and is used to drive the gripper pulling mechanism to pull the support frame. The lifting self-locking drive mechanism is located inside the base shell and is used to drive the screw to rotate and control the lifting of the adjusting sleeve.

[0005] In a preferred embodiment of this utility model, the gripper drive mechanism includes a fixed frame, a worm gear, a motor, a worm wheel, and a rotating shaft. The fixed frame has two sets of components that are rotatably sleeved on both sides of the surface of the worm gear. The bottom of the fixed frame is fixedly installed to the bottom of the inner wall of the protective cover. The rotating shaft is rotatably installed at the center inside the protective cover. The worm wheel is fixedly installed on the top of the surface of the rotating shaft and meshes with the worm gear. The motor is fixedly installed on one side of the fixed frame and its output end is fixedly installed to the worm gear.

[0006] As a preferred embodiment of this utility model, the gripper pulling mechanism includes a drive disk, a pulling shaft, a pull rod, and a deflecting shaft. The drive disk is fixedly installed on the top of the rotating shaft. Two sets of deflecting shafts are provided and symmetrically fixedly installed on both sides of the top of the drive disk. The pulling shaft is fixedly installed on the bottom of the support frame. One end of the pull rod is rotatably installed with the pulling shaft, and the other end of the pull rod is rotatably installed with the deflecting shaft.

[0007] As a preferred embodiment of this utility model, the lifting self-locking drive mechanism includes a second worm gear, a second fixed frame, a second motor, a second worm wheel, and a drive shaft. The second fixed frame is fixedly installed on the front and rear sides of the bottom of the inner wall of the base shell. The second worm gear is rotatably installed inside the second fixed frame. The second motor is fixedly installed on one side of the second fixed frame, and its output end is fixedly installed with the second worm gear. The drive shaft is rotatably installed at the center of the bottom of the inner wall of the base shell. The top of the drive shaft is fixedly installed with the bottom of the screw. The second worm wheel is fixedly installed on the top of the surface of the drive shaft and meshes with the second worm gear.

[0008] As a preferred embodiment of this utility model, sliding sleeves are fixedly installed on the bottom of both sides of the adjusting sleeve, and sliding rods are fixedly installed on both sides of the top of the base shell, with the sliding rods slidingly engaging with the sliding sleeves.

[0009] As a preferred embodiment of this utility model, both sides of the top of the protective cover are fixedly installed with limiting rails, both sides of the support frame are fixedly installed with sliding strips, and the limiting rails are provided with limiting grooves that slide with the limiting rails.

[0010] As a preferred embodiment of this invention, a stabilizing frame is rotatably sleeved on the bottom of the surface of the rotating shaft, and the stabilizing frame is fixedly installed to the bottom of the inner wall of the protective cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model achieves the advantages of height adjustment and reliable self-locking, adaptability to multiple pipe diameters, by setting an adjustment sleeve, protective cover, base shell, support frame, roller, gripper drive mechanism, gripper pulling mechanism and lifting self-locking drive mechanism. It solves the problems of low height adjustment efficiency and easy drift of traditional pipe fitting docking fixtures, the need for manual replacement of adapter components to adapt to different pipe diameters, easy deformation of long pipe fittings under single-point support and poor coaxiality of docking, and easy surface damage caused by friction during pipe fitting support.

[0012] This utility model, by setting up a gripper drive mechanism, when the support frame needs to be driven laterally, starts the motor to drive the worm gear to rotate, the worm gear drives the worm wheel that meshes with it to rotate, and the rotation of the worm wheel can drive the rotating shaft that is fixed to it to rotate, and the rotating shaft can drive the gripper pulling mechanism to work.

[0013] This invention features a gripper pulling mechanism that allows the rotating shaft to rotate, thereby driving the fixed drive disc to rotate. The drive disc then drives the actuating shafts at both ends of the top of the drive disc to twist towards the center of the rotating shaft. A pull rod can then drive the pull shaft, which is in tandem with the drive disc, to move closer to the drive disc. This causes the pull shaft to bring the two sets of support frames closer together to support different pipe diameters. After the support is completed, the support frames move closer together again, allowing the support frames to lift the pipe ends upwards and gradually bring them closer together for easier docking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the semi-sectional three-dimensional structure of this utility model; Figure 3 This is a bottom-view three-dimensional structural diagram of the interior of the protective cover of this utility model; Figure 4 This utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle; Figure 5 This utility model Figure 2 Schematic diagram of the enlarged structure of B.

[0015] In the diagram: 1. Adjusting sleeve; 11. Sliding sleeve; 12. Screw; 13. Slide rod; 2. Protective cover; 3. Base shell; 4. Support frame; 41. Roller; 6. Drive disc; 61. Pull shaft; 62. Pull rod; 63. Actuating shaft; 7. Fixed frame one; 71. Worm gear one; 72. Motor one; 73. Worm wheel one; 74. Rotating shaft; 75. Stabilizing frame; 8. Limit rail; 81. Slide bar; 9. Worm gear two; 91. Fixed frame two; 92. Motor two; 93. Worm wheel two; 94. Drive shaft. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0020] Example 1 Reference Figure 1-5 The first embodiment of this utility model adopts the following technical solution, including an adjusting sleeve 1, a protective cover 2 fixedly installed on the top of the adjusting sleeve 1, a base shell 3 provided at the bottom of the adjusting sleeve 1, a screw 12 rotatably installed on the top of the base shell 3, the screw 12 being threadedly connected to the adjusting sleeve 1, support frames 4 for supporting pipe fittings slidably installed on both sides of the top of the protective cover 2, and a roller 41 rotatably installed on the top of the support frame 4 through a shaft pin, and also includes a gripper drive mechanism, a gripper pulling mechanism, and a lifting self-locking drive mechanism; The gripper pulling mechanism is located at the bottom of the support frame 4 and is used to pull the support frame 4 to move laterally closer and further away; The gripper drive mechanism is located inside the protective cover 2 and is used to drive the gripper pulling mechanism to pull the support frame 4. The gripper drive mechanism includes a fixed frame 7, a worm gear 71, a motor 72, a worm wheel 73, and a rotating shaft 74. The fixed frame 7 is provided with two sets of components that are respectively rotatably sleeved on both sides of the surface of the worm gear 71. The bottom of the fixed frame 7 is fixedly installed to the bottom of the inner wall of the protective cover 2. The rotating shaft 74 is rotatably installed at the center inside the protective cover 2. The worm wheel 73 is fixedly installed on the top of the surface of the rotating shaft 74 and meshes with the worm gear 71. The motor 72 is fixedly installed on one side of the fixed frame 7 and its output end is fixedly installed to the worm gear 71. The lifting self-locking drive mechanism is located inside the base shell 3 and is used to drive the screw 12 to rotate and control the lifting of the adjusting sleeve 1.

[0021] Specifically, when the support frame 4 needs to be driven laterally, the starter motor 72 drives the worm gear 71 to rotate, the worm gear 71 drives the worm wheel 73 meshing with it to rotate, and the rotation of the worm wheel 73 can drive the rotating shaft 74 fixed with it to rotate, and the rotating shaft 74 can drive the gripper pulling mechanism to work.

[0022] Example 2 The second embodiment of this utility model adopts the following technical solution: the gripper pulling mechanism includes a drive disk 6, a pulling shaft 61, a pull rod 62, and a deflecting shaft 63. The drive disk 6 is fixedly installed on the top of the rotating shaft 74. Two sets of deflecting shafts 63 are provided and symmetrically fixedly installed on both sides of the top of the drive disk 6. The pulling shaft 61 is fixedly installed on the bottom of the support frame 4. One end of the pull rod 62 is rotatably installed with the pulling shaft 61, and the other end of the pull rod 62 is rotatably installed with the deflecting shaft 63. The lifting self-locking drive mechanism includes a second worm gear 9 and a second fixing frame 91. The system comprises a second motor 92, a second worm gear 93, and a drive shaft 94. A second mounting bracket 91 is fixedly installed on the front and rear sides of the bottom of the inner wall of the base housing 3. A second worm gear 9 is rotatably installed inside the second mounting bracket 91. A second motor 92 is fixedly installed on one side of the second mounting bracket 91, and its output end is fixedly installed with the second worm gear 9. A drive shaft 94 is rotatably installed at the center of the bottom of the inner wall of the base housing 3. The top of the drive shaft 94 is fixedly installed with the bottom of the screw 12. A second worm gear 93 is fixedly installed on the top of the surface of the drive shaft 94 and meshes with the second worm gear 9.

[0023] Specifically, when the rotating shaft 74 rotates, it can drive the drive disk 6 fixed thereto to rotate. Then, the drive disk 6 drives the actuating shafts 63 at both ends of the top of the drive disk 6 to rotate towards the position close to the axis of the rotating shaft 74. The pull rod 62 can drive the pull shaft 61, which is rotatably engaged with it, to move closer to the drive disk 6. This causes the pull shaft 61 to drive the two sets of support frames 4 to move closer to each other to support different pipe diameters. When the support is completed, they move closer to each other, which allows the support frames 4 to lift the pipe end upwards and gradually move closer to facilitate docking. After the motor 2 92 starts, it can drive the worm gear 2 9 to rotate. The worm gear 2 9 drives the worm wheel 2 93 that meshes with it to rotate. The rotation of the worm wheel 2 93 drives the drive shaft 94 fixed thereto to rotate. The drive shaft 94 drives the screw 12 fixed thereto to rotate. After the screw 12 rotates, the adjusting sleeve 1 moves upwards stably under the limit of the sliding sleeves 11 on both sides to adjust the height.

[0024] Example 3 The third embodiment of this utility model adopts the following technical solution: sliding sleeves 11 are fixedly installed on the bottom of both sides of the adjusting sleeve 1; sliding rods 13 are fixedly installed on both sides of the top of the base shell 3, and the sliding rods 13 slide in cooperation with the sliding sleeves 11; limiting rails 8 are fixedly installed on both sides of the top of the protective cover 2; sliding strips 81 are fixedly installed on both sides of the support frame 4; limiting grooves that slide in cooperation with the limiting rails 8 are opened inside the limiting rails 8; and a stabilizing frame 75 is rotatably sleeved on the bottom of the surface of the rotating shaft 74, and the stabilizing frame 75 is fixedly installed on the bottom of the inner wall of the protective cover 2.

[0025] Specifically, the sliding sleeve 11, in conjunction with the sliding rod 13, ensures that the adjusting sleeve 1 will not twist with the screw 12 after the screw 12 rotates, and can only perform longitudinal height adjustment, thereby improving adjustment stability. The limiting rail 8 can limit the two sides of the support frame 4, allowing the support frame 4 to move closer to each other in a stable lateral movement. The sliding bar 81, in conjunction with the limiting rail 8, prevents the support frame 4 from swaying up and down. The stabilizing frame 75 can stabilize the rotating shaft 74 by rotation, preventing the rotating shaft 74 from swaying and affecting the stable drive of the drive disc 6.

[0026] Working principle: The base shell 3 is used to support the tooling. Multiple bolt mounting holes (not shown in the diagram) are pre-set on its bottom. High-strength bolts are passed through these holes to securely fix the base shell 3 to the workshop floor or a mobile tooling platform. During installation, the base shell 3 must be leveled using a spirit level to ensure that the sliding rod 13 and screw 12 at the top of the base shell 3 are perpendicular, preventing tilting deviations during subsequent height adjustments. For long pipe fittings (such as steel or stainless steel pipes exceeding 3 meters in length) or multiple pipe fittings requiring parallel connection, 2-4 sets of this tooling can be installed at 300-500mm intervals along the length of the pipe fittings. All tooling is controlled by the same PLC. The system (external) enables the synchronous start and stop of motor 2 92. When the synchronous adjustment command is initiated, motor 2 92 of each tooling group simultaneously drives worm gear 2 9 to rotate. Through worm wheel 2 93 and drive shaft 94, screw 12 is driven to rotate synchronously, so that the adjusting sleeve 1 of each tooling group maintains a consistent longitudinal movement under the limit of sliding sleeve 11 and sliding rod 13. The synchronous lifting method can avoid bending deformation of long pipes due to single-point support, ensuring that the pipes are in a horizontal state. At the same time, the coordinated clamping of multiple tooling groups can further improve the coaxiality of pipes during docking, which is especially suitable for high-pressure pipelines, precision instrument pipelines and other scenarios with extremely high docking accuracy requirements. The tooling height adjustment is accomplished by a lifting self-locking drive mechanism located inside the base housing 3. When a single tooling is being adjusted, starting motor 2 92 drives the adjusting sleeve 1 to move longitudinally. When multiple toolings are being adjusted synchronously, the PLC system sends a synchronization signal, and each group of motors 2 92 runs at the same speed. Through the synchronous rotation of screw 12, all adjusting sleeves 1 are kept at the same height. After the adjustment is completed, based on the reverse self-locking characteristics of worm gear 1 71 and worm wheel 1 73, the height of all toolings is locked synchronously, avoiding stress concentration in the pipe fittings caused by height deviations of each group during the docking process. During the pipe placement stage, the motor 72 of the gripper drive mechanism is first started via the PLC system or manual control. Motor 72 drives the worm gear 71 to rotate in the opposite direction, which in turn drives the worm wheel 73 and the rotating shaft 74 to rotate in the opposite direction. The rotating shaft 74 drives the drive disc 6 to rotate in the opposite direction, causing the two sets of actuating shafts 63 at the top of the drive disc 6 to move away from the axis of the rotating shaft 74. This, in turn, pulls the support frame 4 along the limit rail 8 to separate it to both sides via the pull rod 62, until the distance between the two sets of support frames 4 is greater than the outer diameter of the pipe to be connected (usually leaving 10-20mm of operating space). Then, hoisting equipment (such as a small overhead crane or manual hoist) is used to separate the two sets of pipes to be connected. Do not place the pipe fittings on the rollers 41 of the support frames 4 on both sides of the top of the protective cover 2. The rollers 41 are rotatably connected to the support frames 4 through the shaft pins, which can reduce the impact and friction between the pipe fittings and the support frames 4 when placing them, and at the same time avoid scratching the outer wall of the pipe fittings. After placement, fine-tune the position of the pipe fittings so that the mating end faces of the two sets of pipe fittings are initially aligned (the deviation is controlled within 5mm). During the pipe fitting clamping and mating position adjustment stage, start the motor 72. The motor 72 drives the worm gear 71 to rotate in the forward direction, and drives the rotating shaft 74 to rotate through the worm wheel 73. The rotating shaft 74 drives the drive disk 6 to rotate, so that the two sets of actuating shafts 63 move closer to the axis. The pull rod 62 pulls the support frames 4 closer to each other. When the support frame 4 moves to the point where the roller 41 makes slight contact with the outer wall of the pipe, pause motor 72 and fine-tune the height of the adjusting sleeve 1 through the lifting self-locking drive mechanism to make the center axes of the two sets of pipes completely aligned (calibration can be assisted by a laser alignment instrument). After calibration, restart motor 72 to make the support frame 4 continue to slowly approach until the roller 41 forms a stable clamp on the pipe (the clamping force is controlled by the current feedback of motor 72 to avoid excessive force that could deform the pipe). At this point, motor 72 stops, and the position of the support frame 4 is locked based on the self-locking characteristics of the worm gear 71 and worm wheel 73. If multiple sets of tooling are linked, all tooling shall complete the clamping and calibration synchronously according to the above steps to ensure that the long pipe is in a stable support and coaxial state. Then, welding, flange connection and other docking operations are carried out. During the pipe removal stage, after the pipe docking operation (such as welding cooling and flange tightening) is completed, start motor 72 to rotate in the opposite direction to drive the drive disk 6. The actuating shaft 63 is driven to separate to both sides, and the pull rod 62 pulls the support frame 4 to move to both sides until the roller 41 is completely separated from the outer wall of the pipe (the distance is greater than the outer diameter of the pipe). If the length of the pipe after docking is long, the two ends or the middle of the pipe need to be lifted by the hoisting equipment to avoid the pipe pressing the tooling due to its own weight. Then, as needed, the motor 2 92 can be started to rotate in the opposite direction, so that the adjusting sleeve 1 drives the support frame 4 to move downward, leaving enough space for the pipe to be removed. Finally, the docked pipe is lifted off the tooling smoothly by the hoisting equipment, completing the entire docking operation process. During the entire operation, the cooperation between the limit rail 8 and the slide bar 81 ensures that the support frame 4 does not sway up and down when it moves laterally, the stabilizing frame 75 prevents the rotation shaft 74 from deviating when it rotates, and the sliding cooperation between the sliding sleeve 11 and the slide rod 13 ensures the stability of the longitudinal movement of the adjusting sleeve 1. With the coordinated action of multiple components, the entire process of placing, adjusting, docking and removing the pipe is realized in a convenient and low-damage manner.

[0027] The motors 1 and 2 used in this application can be additionally equipped with protective measures that are common knowledge in the field of this technology under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0028] It should be noted that motor one, motor two, worm one, worm wheel one, worm two, and worm wheel two are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0029] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0030] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0031] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tooling for connecting pipe fittings in machining, comprising an adjusting sleeve (1), a protective cover (2) fixedly installed on the top of the adjusting sleeve (1), a base shell (3) provided at the bottom of the adjusting sleeve (1), a screw (12) rotatably installed on the top of the base shell (3), the screw (12) being threadedly connected to the adjusting sleeve (1), and support frames (4) for supporting pipe fittings slidably installed on both sides of the top of the protective cover (2), and a roller (41) rotatably installed on the top of the support frame (4) via a pivot pin, characterized in that: It also includes a gripper drive mechanism, a gripper pulling mechanism, and a lifting self-locking drive mechanism; The gripper pulling mechanism is located at the bottom of the support frame (4) and is used to pull the support frame (4) to move laterally closer and further away; The gripper drive mechanism is located inside the protective cover (2) and is used to drive the gripper pulling mechanism to pull the support frame (4); The lifting self-locking drive mechanism is located inside the base shell (3) and is used to drive the screw (12) to rotate and control the lifting of the adjusting sleeve (1).

2. The tooling for butt welding pipe fittings for machining according to claim 1, characterized in that: The gripper drive mechanism includes a fixed frame (7), a worm gear (71), a motor (72), a worm wheel (73), and a rotating shaft (74). The fixed frame (7) has two sets of components that are rotatably mounted on both sides of the surface of the worm gear (71). The bottom of the fixed frame (7) is fixedly installed to the bottom of the inner wall of the protective cover (2). The rotating shaft (74) is rotatably installed at the center inside the protective cover (2). The worm wheel (73) is fixedly installed on the top of the surface of the rotating shaft (74) and meshes with the worm gear (71). The motor (72) is fixedly installed on one side of the fixed frame (7) and its output end is fixedly installed to the worm gear (71).

3. The tooling for butt welding pipe fittings for machining according to claim 2, characterized in that: The gripper pulling mechanism includes a drive disk (6), a pulling shaft (61), a pull rod (62), and a deflecting shaft (63). The drive disk (6) is fixedly installed on the top of the rotating shaft (74). Two sets of deflecting shafts (63) are provided and symmetrically fixedly installed on both sides of the top of the drive disk (6). The pulling shaft (61) is fixedly installed on the bottom of the support frame (4). One end of the pull rod (62) is rotatably installed with the pulling shaft (61), and the other end of the pull rod (62) is rotatably installed with the deflecting shaft (63).

4. The machining tooling for pipe fittings as described in claim 1, characterized in that: The lifting self-locking drive mechanism includes a second worm gear (9), a second fixed frame (91), a second motor (92), a second worm wheel (93), and a drive shaft (94). The second fixed frame (91) is fixedly installed on the front and rear sides of the bottom of the inner wall of the base shell (3). The second worm gear (9) is rotatably installed inside the second fixed frame (91). The second motor (92) is fixedly installed on one side of the second fixed frame (91), and its output end is fixedly installed with the second worm gear (9). The drive shaft (94) is rotatably installed at the center of the bottom of the inner wall of the base shell (3). The top of the drive shaft (94) is fixedly installed with the bottom of the screw (12). The second worm wheel (93) is fixedly installed on the top of the surface of the drive shaft (94) and meshes with the second worm gear (9).

5. The tooling for butt welding pipe fittings for machining according to claim 1, characterized in that: Sliding sleeves (11) are fixedly installed on the bottom of both sides of the adjusting sleeve (1), and sliding rods (13) are fixedly installed on both sides of the top of the base shell (3). The sliding rods (13) and the sliding sleeves (11) slide in cooperation.

6. The tooling for butt welding pipe fittings for machining according to claim 1, characterized in that: The protective cover (2) has two fixed limit rails (8) on both sides of its top, and the support frame (4) has two fixed slide bars (81) on both sides. The limit rail (8) has a limit groove inside that slides with the limit rail (8).

7. The tooling for butt welding pipe fittings for machining according to claim 2, characterized in that: A stabilizing frame (75) is rotatably sleeved on the bottom of the surface of the rotating shaft (74), and the stabilizing frame (75) is fixedly installed on the bottom of the inner wall of the protective cover (2).

Images