A shaping tool structure for a multi-layer extra-high pressure corrugated pipe

Abstract

The utility model relates to corrugated pipe shaping technical field especially, relates to a kind of shaping tool structure for multilayer extra-high voltage corrugated pipe, including device base, the side swing joint of device base has moving seat, the connecting place of device base and moving seat is located the bottom end fixed connection of device base with guide seat, the bottom end of moving seat extends to the inside of guide seat, one end of guide seat is provided with displacement component, displacement component is used to connect between device base and moving seat, the top of device base and moving seat is all fixedly connected with connecting seat;The utility model is through being provided with adjustable fixed seat and clamping component on device base and moving seat, can be respectively to the both ends of corrugated pipe independent clamping operation, and fixed block and contact block adopt swing joint structure, can adapt to the clamping demand of multilayer extra-high voltage corrugated pipe of different wall thickness, outer diameter, and realize the axial tensile straightening of already curved corrugated pipe by servo motor B drive screw rod drive moving seat along guide seat sliding.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe shaping technology, and in particular to a shaping fixture structure for multi-layer ultra-high voltage corrugated pipes. Background Technology

[0002] Corrugated pipes mainly include metal corrugated pipes, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes, and metal hoses. Metal corrugated pipes are mainly used to compensate for pipeline thermal deformation, reduce vibration, and absorb pipeline settlement deformation. They are widely used in petrochemical, instrumentation, aerospace, chemical, power, cement, metallurgical and other industries.

[0003] For example, patent number CN213701987U discloses a shaping fixture for a metal corrugated pipe blank. First, the pipe blank is fixed by multiple sets of clamps. Then, the cutter is started to cut the pipe blank. After that, the electric slide rail drives the slide block to slide, and then the cutter is driven to move forward through the first connecting frame, the second connecting frame, the connecting arm and the mounting frame to complete the cutting of the pipe blank. This effectively improves the cutting efficiency in the shaping process, reduces the safety risks of manual cutting, and improves practicality. For example, patent number CN219025470U discloses a precision shaping device for bellows. It uses an upper shaping cylinder to drive an upper shaping mold and a lower shaping mold to shape the bellows, which improves work efficiency, reduces labor intensity, and provides stable pressure, resulting in a high product qualification rate. The side shaping cylinder drives the shaping diaphragm to move, realizing the automatic opening and closing of the diaphragm, which improves work efficiency and reduces labor intensity.

[0004] However, when using existing bellows shaping fixtures, the clamping method often causes the bellows axis to deviate due to inaccurate positioning or uneven clamping force. This is especially true in ultra-high voltage and multi-layer bellows, where even slight eccentricity can affect the bellows shaping process. Furthermore, bellows come in various specifications, particularly in ultra-high voltage equipment which often involves large diameters, thick walls, and multi-layer structures, and the shaping fixture structure is not convenient for adjustment according to different bellows. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a shaping fixture structure for multi-layer ultra-high voltage corrugated pipes. This solves the problem that existing corrugated pipe shaping fixture structures often suffer from misalignment of the corrugated pipe axis due to inaccurate positioning or uneven clamping force. This is especially problematic in ultra-high voltage and multi-layer corrugated pipe structures, where even slight eccentricity can affect the shaping process. Furthermore, corrugated pipes come in various specifications, particularly in ultra-high voltage equipment which often involves large diameters, thick walls, and multi-layer structures, making it difficult for the shaping fixture structure to be adjusted for different types of corrugated pipes.

[0006] The technical solution of this utility model is as follows: a forming fixture structure for multi-layer ultra-high voltage corrugated pipes, including a device base, a movable seat movably connected to one side of the device base, a guide seat fixedly connected at the bottom end of the device base where the device base and the movable seat are connected, the bottom end of the movable seat extending to the inner side of the guide seat, a displacement component provided at one end of the guide seat, the displacement component being used for connection between the device base and the movable seat, a connecting seat fixedly connected to the top of both the device base and the movable seat, a fixed seat fixedly connected to the top of the connecting seat, a contact block provided on the outer side of the front end face of the fixed seat, a fixed block movably connected to the inner wall of the front end face of the fixed seat, and a transmission component provided at the rear end of the fixed seat, the transmission component being used for connection between the fixed seat and the fixed block; the displacement component includes a servo motor B, a lead screw fixedly connected to the output end of the servo motor B, one end of the lead screw extending to the outer side of the movable seat and rotatably connected to the guide seat, when the servo motor B drives the lead screw to rotate, the servo motor B, in conjunction with the lead screw, drives the movable seat to move inside the guide seat; The transmission assembly includes a servo motor A, with a transmission gear A fixedly connected to the output end of the servo motor A. A transmission rod is rotatably connected to the outer side of the transmission gear A, with one end of the transmission rod extending to the outer side of the fixed block. When the servo motor A drives the transmission gear A to rotate, the transmission gear A transmits the power of the servo motor A to the transmission rod, causing the transmission gear A to cooperate with the transmission rod to drive the fixed block to move inside the fixed seat.

[0007] Preferably, a control panel is fixedly connected to one side of the device base. One end of the control panel is provided with two function buttons, each with a forward / reverse button. The two function buttons are electrically connected to servo motor A and servo motor B respectively, and servo motor A and servo motor B can be controlled by the two function buttons respectively.

[0008] Preferably, the device base and the guide seat are an integral structure, the bottom end of the movable seat is provided with a guide block, the inner wall of the guide seat is provided with a guide groove, the bottom end of the guide block extends to the inner side of the guide groove, and the device base and the movable seat are movably connected through the guide seat.

[0009] Preferably, both the base of the device and the bottom of the movable seat are fixedly connected to a roller assembly, which includes casters.

[0010] Preferably, a rack is provided at the bottom of the fixed block, and transmission gears B are provided at both ends of the transmission rod. When the transmission rod rotates, the transmission rod, in conjunction with the transmission gears B, is connected to the transmission gears A and the rack.

[0011] Preferably, there are three contact blocks, and the number of fixing blocks and transmission rods is the same as the number of contact blocks, with each fixing block and transmission rod corresponding to a contact block.

[0012] Preferably, both the contact block and the fixing block are semi-circular, with the top end of the fixing block fitting against the bottom end of the contact block.

[0013] The beneficial effects of this utility model are: This multi-layer ultra-high voltage corrugated pipe uses a shaping fixture structure. By setting adjustable fixed seats and clamping components on both the device base and the moving seat, the two ends of the corrugated pipe can be clamped independently, effectively avoiding secondary deformation or stress concentration caused by eccentric clamping. The fixed block and the contact block adopt a movable connection structure, which can move up and down under the drive of the servo transmission component. With the semi-arc design, it can adapt to the clamping requirements of multi-layer ultra-high voltage corrugated pipes with different wall thicknesses and outer diameters. Furthermore, the servo motor B drives the lead screw to drive the moving seat to slide along the guide seat, realizing the axial tension correction of the bent corrugated pipe. Attached Figure Description

[0014] Figure 1 The diagram shown is a three-dimensional structural representation of this utility model. Figure 1 ; Figure 2 The diagram shown is a three-dimensional structural representation of this utility model. Figure 2 ; Figure 3 The diagram shown is a structural schematic of the guide seat of this utility model; Figure 4 The diagram shown is a structural schematic of the fixing base of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Device base; 2. Control panel; 3. Movable seat; 4. Connecting seat; 5. Fixed seat; 6. Servo motor A; 7. Guide seat; 8. Guide groove; 9. Contact block; 10. Fixed block; 11. Servo motor B; 12. Lead screw; 13. Transmission gear A; 14. Transmission rod; 15. Transmission gear B; 16. Rack; 17. Roller assembly; 18. Guide block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4This utility model provides an embodiment: a shaping fixture structure for multi-layer ultra-high voltage corrugated pipes, including a device base 1, a movable seat 3 movably connected to one side of the device base 1, a guide seat 7 fixedly connected at the bottom end of the device base 1 at the connection between the device base 1 and the movable seat 3, the bottom end of the movable seat 3 extending to the inner side of the guide seat 7, a displacement component provided at one end of the guide seat 7, the displacement component being used for connection between the device base 1 and the movable seat 3, a connecting seat 4 fixedly connected to the top end of both the device base 1 and the movable seat 3, a fixed seat 5 fixedly connected to the top end of the connecting seat 4, a contact block 9 provided on the outer side of the front end face of the fixed seat 5, a fixed block 10 movably connected to the inner wall of the front end face of the fixed seat 5, and a transmission component provided at the rear end of the fixed seat 5, the transmission component being used for connection between the fixed seat 5 and the fixed block 10; the displacement component includes... The system includes a servo motor B11, with a lead screw 12 fixedly connected to the output end of the servo motor B11. One end of the lead screw 12 extends to the outside of the movable seat 3 and is rotatably connected to the guide seat 7. When the servo motor B11 drives the lead screw 12 to rotate, the servo motor B11, in conjunction with the lead screw 12, drives the movable seat 3 to move inside the guide seat 7. The transmission assembly includes a servo motor A6, with a transmission gear A13 fixedly connected to the output end of the servo motor A6. A transmission rod 14 is rotatably connected to the outside of the transmission gear A13. One end of the transmission rod 14 extends to the outside of the fixed block 10. When the servo motor A6 drives the transmission gear A13 to rotate, the transmission gear A13 transmits the power of the servo motor A6 to the transmission rod 14, causing the transmission gear A13, in conjunction with the transmission rod 14, to drive the fixed block 10 to move inside the fixed seat 5.

[0018] Please see Figures 1-2In this embodiment, a control panel 2 is fixedly connected to one side of the device base 1. Two function buttons are provided at one end of the control panel 2, each with a forward / reverse button. These two function buttons are electrically connected to servo motors A6 and B11, respectively. The servo motors A6 and B11 can be controlled via these two function buttons. Both servo motors A6 and B11 are self-locking motors (according to CN120320523A, a self-locking motor includes a housing, stator magnets, a rotor, and a motor shaft; multiple corner sections are provided in a polygonal cavity, with each corner section facing the other; stator magnets are installed in corresponding positions at each corner section; and the arc-shaped surfaces of each stator magnet enclose an installation area to accommodate the rotor, optimizing the magnetic field distribution). Furthermore, grooves are formed on the arc-shaped surfaces of the stator magnets, dividing the stator magnets... The stator has several stator magnetic poles, which breaks the magnetic reluctance of the air gap magnetic field, forming a discontinuous magnetic field and increasing the number of magnetic reluctance pairs, thus increasing the magnetic flux density of the rotor. The grooves on each stator magnet are in the same position to form a symmetrical stator magnetic pole layout, improving the symmetry of the air gap magnetic field, resulting in a larger cogging torque of the motor, and improving the mechanical performance and self-locking performance of the motor. Compared with the motor structure with a screw and nut drive structure, it has lower wear and smaller size, thus adapting to a compact structure. The device base 1 and guide seat 7 are integrated. The bottom end of the movable seat 3 is provided with a guide block 18. The inner wall of the guide seat 7 is provided with a guide groove 8. The bottom end of the guide block 18 extends to the inner side of the guide groove 8. The device base 1 and the movable seat 3 are movably connected through the guide seat 7. The bottom ends of the device base 1 and the movable seat 3 are both fixedly connected with roller sets 17, which include universal wheels.

[0019] Please see Figures 3-4 In this embodiment, a rack 16 is provided at the bottom of the fixing block 10, and a transmission gear B15 is provided at both ends of the transmission rod 14. When the transmission rod 14 rotates, the transmission rod 14 cooperates with the transmission gear B15 to drive the transmission gear A13 and the rack 16. There are three contact blocks 9. The number of fixing blocks 10 and transmission rod 14 is the same as the number of contact blocks 9. The fixing blocks 10 and transmission rod 14 correspond one-to-one with the contact blocks 9. Both the contact blocks 9 and the fixing blocks 10 are semi-arc-shaped. The top end of the fixing block 10 fits against the bottom end of the contact block 9.

[0020] During operation, place the device in a suitable position, connect the power supply, start the device, and then place one end of the bellows inside the top fixing seat 5 of the device base 1. Then, control the servo motor A6 to start via the control panel 2. When the servo motor A6 drives the transmission gear A13 to rotate, the transmission gear A13 transmits the power from the servo motor A6 to the transmission rod 14, causing the transmission gear A13 and transmission rod 14 to move the fixing block 10 inside the fixing seat 5. This allows the fixing block 10 to clamp and fix the bellows in conjunction with the contact block 9 during the displacement process. Next, place the other end of the corrugated pipe into the inner side of the top fixing seat 5 of the movable seat 3, and repeat the above operation. Since the fixing block 10 is movable, the device can clamp corrugated pipes of different thicknesses through the fixing block 10. After both ends of the corrugated pipe are fixed, the servo motor B11 is started through the control panel 2. When the servo motor B11 drives the lead screw 12 to rotate, the servo motor B11 and the lead screw 12 drive the movable seat 3 to move inside the guide seat 7, so that the device can straighten the bent corrugated pipe, which is convenient for subsequent repair and shaping of the corrugated pipe. Compared to CN213701987U, a forming fixture for a metal corrugated pipe blank, which first fixes the pipe blank using multiple clamps, then starts a cutter to cut the pipe blank, followed by an electric slide rail driving a sliding block to move, and then using a first connecting frame, a second connecting frame, a connecting arm, and a mounting frame to move the cutter forward, thus completing the cutting of the pipe blank, this method effectively improves the cutting efficiency in the forming process, reduces the safety risks of manual cutting, and improves practicality. Also compared to CN219025470U, a precision forming device for corrugated pipes, which uses an upper forming cylinder to drive an upper forming mold and a lower forming mold to form the corrugated pipe, improving work efficiency, reducing labor intensity, and applying pressure... The device features stable force and a high product qualification rate. By using a side-forming cylinder to drive the forming diaphragm, the diaphragm can be opened and closed automatically, improving work efficiency and reducing labor intensity. This application provides adjustable fixed seats and clamping components on both the device base and the moving seat, enabling independent clamping of both ends of the bellows. This effectively avoids secondary deformation or stress concentration caused by eccentric clamping. The fixed block and the contact block adopt a movable connection structure, which can move up and down under the drive of the servo transmission component. Combined with the semi-arc design, it can adapt to the clamping requirements of multi-layer UHV bellows with different wall thicknesses and outer diameters. Furthermore, the servo motor B drives the lead screw to drive the moving seat to slide along the guide seat, realizing the axial tension correction of the bent bellows.

[0021] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaping fixture structure for multi-layer ultra-high voltage corrugated pipes, comprising a device base (1), characterized in that: A movable seat (3) is movably connected to one side of the device base (1). The connection between the device base (1) and the movable seat (3) is located at the bottom end of the device base (1) and a guide seat (7) is fixedly connected. The bottom end of the movable seat (3) extends to the inner side of the guide seat (7). A displacement component is provided at one end of the guide seat (7). The displacement component is used to connect the device base (1) and the movable seat (3). A connecting seat (4) is fixedly connected to the top of both the device base (1) and the movable seat (3). A fixed seat (5) is fixedly connected to the top of the connecting seat (4). A contact block (9) is provided on the outer side of the front end face of the fixed seat (5). A fixed block (10) is movably connected to the inner wall of the front end face of the fixed seat (5). A transmission component is provided at the rear end of the fixed seat (5). The transmission component is used to connect the fixed seat (5) and the fixed block (10). The displacement assembly includes a servo motor B (11), and a lead screw (12) is fixedly connected to the output end of the servo motor B (11). One end of the lead screw (12) extends to the outside of the moving seat (3) and is rotatably connected to the guide seat (7). When the servo motor B (11) drives the lead screw (12) to rotate, the servo motor B (11) cooperates with the lead screw (12) to drive the moving seat (3) to move inside the guide seat (7). The transmission assembly includes a servo motor A (6), the output end of which is fixedly connected to a transmission gear A (13), and a transmission rod (14) is rotatably connected to the outside of the transmission gear A (13). One end of the transmission rod (14) extends to the outside of the fixed block (10). When the servo motor A (6) drives the transmission gear A (13) to rotate, the transmission gear A (13) transmits the power of the servo motor A (6) to the transmission rod (14), so that the transmission gear A (13) cooperates with the transmission rod (14) to drive the fixed block (10) to move inside the fixed seat (5).

2. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: A control panel (2) is fixedly connected to one side of the device base (1). Two function buttons are provided at one end of the control panel (2). The function buttons are respectively equipped with forward / reverse buttons. The two function buttons are electrically connected to servo motor A (6) and servo motor B (11) respectively. The servo motor A (6) and servo motor B (11) can be controlled by the two function buttons respectively.

3. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: The device base (1) and the guide seat (7) are an integral structure. The bottom end of the movable seat (3) is provided with a guide block (18). The inner wall of the guide seat (7) is provided with a guide groove (8). The bottom end of the guide block (18) extends to the inner side of the guide groove (8). The device base (1) and the movable seat (3) are movably connected through the guide seat (7).

4. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: The bottom ends of the device base (1) and the movable seat (3) are both fixedly connected to a roller assembly (17), which includes casters.

5. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: The bottom end of the fixed block (10) is provided with a rack (16), and both ends of the transmission rod (14) are provided with transmission gears B (15). When the transmission rod (14) rotates, the transmission rod (14) cooperates with the transmission gears B (15) to drive the transmission gears A (13) and the rack (16).

6. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: There are three contact blocks (9), and the number of fixed blocks (10) and transmission rods (14) is the same as that of contact blocks (9). The fixed blocks (10) and transmission rods (14) correspond one-to-one with contact blocks (9).

7. The forming fixture structure for a multi-layer ultra-high voltage corrugated pipe according to claim 1, characterized in that: Both the contact block (9) and the fixing block (10) are semi-circular, with the top of the fixing block (10) fitting against the bottom of the contact block (9).

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