An MPP power pipe connection device with a guide alignment mechanism

Abstract

This invention discloses an MPP power pipe connection device with a guiding alignment mechanism, relating to the field of power pipe connection technology. Regarding the thermal fusion welding process of MPP power pipes, the overall process is divided into two stages: preheating guidance and directional secondary connection. Essentially, before docking, the displacement change generated by the lateral moving block in conjunction with the outer wall of the power pipe is used to indirectly feedback and mark the eccentricity value between the power pipe body and the directional ring. Then, a secondary adjustment process is used to bring the eccentricity value to zero. The purpose is to ensure complete alignment between the two power pipes and avoid problems such as misalignment. Furthermore, during the directional secondary connection stage, the aforementioned displacement change is simultaneously used to indirectly feedback the docking effect, specifically controlling the docking stroke and docking temperature during the overall docking process to avoid problems such as folds, anisotropic deformation, and gaps.

Description

Technical Field

[0001] This invention relates to the field of power pipe connection technology, and more specifically to an MPP power pipe connection device with a guide alignment mechanism. Background Technology

[0002] MPP power pipes use modified polypropylene as the main raw material, which has the characteristics of high temperature resistance and external pressure resistance. They are suitable for medium and low voltage power transmission cable ducts below 10KV. During the cable laying process, MPP power pipes are mostly used as external protective structures. In the specific construction process, multiple MPP power pipes need to be spliced ​​according to the cable laying length. The current method is to complete the splicing by heat fusion. The essence of this method is to put one end of the power pipe in a non-melting state, and then apply pressure to squeeze the two together to "bond" them. After cooling, they form an integrated power pipe.

[0003] It should be noted that hot-melt welding also includes butt welding and sleeving. Taking butt welding as an example, when one end of the power pipe is in a non-melted state and is being squeezed, if the applied pressure is low (or the butt welding stroke is low) and the temperature remains relatively stable, or if the applied pressure is relatively stable (the butt welding stroke is stable) and the temperature is relatively changing, it is difficult to maintain a relatively sealed and stable connection during the butt welding process. For example, excessive compression deformation can lead to problems such as folded edges, misaligned butt welding, and anisotropic deformation, as well as gaps at the joint of the two power pipes.

[0004] Current equipment used for thermal fusion welding of power pipes only controls the melting temperature and the welding stroke, but it is difficult to accurately control the connection quality, such as whether there are misalignments or whether the welding is qualified. This application proposes a solution to this problem. Summary of the Invention

[0005] The purpose of this invention is to provide an MPP power pipe connection device with a guiding alignment mechanism to solve the problem that it is difficult to accurately control the connection quality in the existing power pipe connection devices, which leads to problems such as folds, misaligned joints, anisotropic deformation or gaps at the joints of the connected power pipes.

[0006] The objective of this invention can be achieved through the following technical solution: an MPP power pipe connection device with a guide alignment mechanism, comprising a workbench and a power pipe body, wherein a directional seat and two slides are arranged on the workbench along its length direction, and a controller is provided inside the workbench, wherein the directional seat is located in the middle position of the slides and is mounted on the workbench, and the two slides are symmetrically arranged along the directional seat.

[0007] Two directional rings are installed on the slide block, the power tube body is located in the directional rings on the slide block, a docking gear ring is provided on the directional block, four first electric push rods are installed on the directional rings, an arc-shaped clamp is installed at the output end of the four first electric push rods, and the four first electric push rods are arranged in a circular array along the center point of the directional ring.

[0008] An electric heat-conducting pipe and three second electric push rods are installed inside the docking gear ring. The three second electric push rods are arranged in a circular array along the center point of the docking gear ring, and an active pressure block is installed at the output end of the second electric push rod. A side moving block is slidably installed on the outer wall of the active pressure block in a direction perpendicular to the center point of the docking gear ring. A displacement sensor corresponding to the side moving block is installed on the inner wall of the docking gear ring, and the output end of the displacement sensor is fixedly connected to the side moving block.

[0009] The following configuration is further provided: the two slide blocks are slidably connected along the length of the worktable, and a straight rack plate is installed on the lower surface of the slide blocks; a transmission gear set that meshes with the straight rack plate is rotatably installed inside the worktable; and a first motor is fixedly installed inside the worktable; a second drive gear that meshes with the transmission gear set is installed at the output end of the first motor.

[0010] The configuration is further defined as follows: the second driving gear does not mesh with the straight rack plate, and the diameter of the second driving gear is smaller than the diameter of the transmission gear set.

[0011] The configuration is further defined as follows: the docking gear ring is rotatably connected in the directional seat, a second motor is installed in the internal position of the worktable corresponding to the directional seat, a first drive gear is installed at the output end of the second motor, and the first drive gear meshes with the docking gear ring.

[0012] A further configuration is provided: an electrical connector is provided above the docking gear ring, and the electrical connector is movably connected to the docking gear ring.

[0013] The setting is further configured such that the curvature of the outer wall of the active pressing block and the lateral moving block near the power pipe body matches that of the outer wall of the power pipe body.

[0014] The usage process includes the following stages:

[0015] Preheating guidance phase

[0016] Step 1: Pass the two power tube bodies through the two directional rings, and use multiple arc-shaped clamps to initially clamp and fix the power tube bodies, and preheat the ends of the two power tube bodies that are close to each other.

[0017] Step 2: Use the slide block to bring the two power tube bodies close to each other without closing them, and activate the second electric push rod to make the side moving blocks contact the power tube bodies, while the active pressing block does not contact the power tube bodies.

[0018] Step 3: After step 2 is completed, the electric heat pipe is used to heat and insulate the electric pipe body, and the second motor drives the docking gear ring to rotate 360° at a constant speed, while the displayed values ​​on each displacement sensor are recorded simultaneously.

[0019] Directional second phase

[0020] Step 4: Reposition the center points of the two power tube bodies using the values ​​displayed in Step 3, and calculate the eccentricity value by comparing the center point with the center point of the directional ring. Use the eccentricity value to control one or more first electric push rods to perform secondary adjustment so that the center point of the power tube body and the center point of the directional ring are on the same horizontal axis.

[0021] Step 5: After completing Step 4, the two power tube bodies are brought closer together by the slide until they are closed, and the electric heat pipes are used to heat the power tube bodies simultaneously. The second motor drives the docking gear ring to rotate at a constant speed n times.

[0022] Step Six: While Step Five is in progress, control the movement stroke of the slide and the operating status of the second motor again according to the displayed values ​​in Step Three.

[0023] The present invention has the following beneficial effects:

[0024] This invention addresses the thermal fusion process of MPP electrical components, dividing the entire process into two stages: preheating guidance and directional connection. Essentially, before the two electrical tubes are thermally fused but not yet joined, a lateral moving block contacts the outer wall of the electrical tube body. The displacement change generated by the lateral moving block's circular rotation relative to the electrical tube body indirectly provides feedback and marks the eccentricity value between the center point of the electrical tube body and the center point of the directional ring. Then, a secondary adjustment process using multiple first electric push rods changes this eccentricity value, specifically bringing it to zero, ensuring that the two electrical tube bodies are connected in a relatively aligned manner. In this stage, displacement change is used as the criterion for judging whether the electrical tube bodies are aligned.

[0025] In the directional second connection stage, a small gear drives a large gear to precisely control the connection stroke of the power tube body. At the same time, the displacement change of the side moving block after the two power tube bodies are connected is utilized. The purpose is to use the displacement change as the criterion for judging whether folds occur during the connection process of the power tube bodies in this stage, thereby controlling the connection stroke and connection temperature in the overall connection process in reverse, ensuring that the two power tube bodies are completely thermally fused into one, and avoiding problems such as folds and anisotropic deformation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an MPP power pipe connection device with a guide alignment mechanism proposed in this invention;

[0028] Figure 2 This is a cross-sectional view of the workbench in an MPP power pipe connection device with a guide alignment mechanism proposed in this invention.

[0029] Figure 3 This is a schematic diagram of the slide block in an MPP power pipe connection device with a guide alignment mechanism proposed in this invention;

[0030] Figure 4 This is a cross-sectional view of the directional ring in an MPP power pipe connection device with a guide alignment mechanism proposed in this invention;

[0031] Figure 5 This is a schematic diagram of the docking gear ring in an MPP power pipe connection device with a guiding alignment mechanism proposed in this invention.

[0032] Figure 6 This is a cross-sectional view of the mating gear ring in an MPP power pipe connection device with a guide alignment mechanism proposed in this invention.

[0033] Figure 7 This is a cross-sectional view of the mating gear ring in an MPP power pipe connection device with a guide alignment mechanism proposed in this invention.

[0034] In the diagram: 1. Workbench; 2. Orientation seat; 3. Slide; 4. Connecting gear ring; 5. Orientation ring; 6. Transmission gear set; 7. First driving gear; 8. Arc-shaped clamp; 9. Straight rack plate; 10. Second driving gear; 11. First motor; 12. First electric push rod; 13. Electric heat pipe; 14. Second motor; 15. Electrical connector; 16. Second electric push rod; 17. Active pressure block; 18. Displacement sensor; 19. Lateral moving block. Detailed Implementation

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] For the current thermal fusion welding process of MPP power pipes, simply controlling the welding stroke and temperature during the welding process is insufficient to accurately control the connection quality. Problems such as edge wrinkling, misalignment, anisotropic deformation, or gaps may occur. Therefore, the following technical solution is proposed:

[0038] Reference Figures 1-7 An MPP power pipe connection device with a guide alignment mechanism in this embodiment includes a workbench 1 and a power pipe body. A guide seat 2 and two slides 3 are arranged on the workbench 1 along its length direction. A controller is provided inside the workbench 1. The guide seat 2 is located in the middle of the slides 3 and is installed on the workbench 1. The two slides 3 are arranged symmetrically along the guide seat 2.

[0039] Two directional rings 5 ​​are installed on the slide 3. The power tube body is located in the directional ring 5 on the slide 3. A docking gear ring 4 is provided on the directional seat 2. Four first electric push rods 12 are installed on the directional ring 5. An arc-shaped clamping block 8 is installed at the output end of the four first electric push rods 12. The four first electric push rods 12 are arranged in a circular array along the center point of the directional ring 5.

[0040] An electric heat-conducting pipe 13 and three second electric push rods 16 are installed inside the docking gear ring 4. The three second electric push rods 16 are arranged in a circular array along the center point of the docking gear ring 4. An active pressure block 17 is installed at the output end of the second electric push rod 16. A side moving block 19 is slidably installed on the outer wall of the active pressure block 17 in a direction perpendicular to the center point of the docking gear ring 4. A displacement sensor 18 corresponding to the side moving block 19 is installed on the inner wall of the docking gear ring 4. The output end of the displacement sensor 18 is fixedly connected to the side moving block 19.

[0041] Two slide blocks 3 are slidably connected along the length of the worktable 1, and a straight rack plate 9 is installed on the lower surface of the slide block 3. A transmission gear set 6 that meshes with the straight rack plate 9 is rotatably installed inside the worktable 1, and a first motor 11 is fixedly installed inside the worktable 1. A second drive gear 10 that meshes with the transmission gear set 6 is installed at the output end of the first motor 11.

[0042] Basic principle: Based on the current hot-melt welding process of MPP power pipes, this invention mainly focuses on the butt welding action. Its essence is to bring two power pipes close together and close them together. It is necessary to heat up and melt the ends of the two power pipes that are close to each other. After the two power pipes are closed together, and after the molten power pipes are cooled down, the two power pipes are formed into one. The specific details are not described in this embodiment.

[0043] In this embodiment, the process of joining the two power tubes is specifically addressed. First, the MPP power tube is fixed to the slide block 3 by multiple arc-shaped clamps 8. Then, the slide block 3 drives the two power tube bodies to move closer to each other. It should be noted that a docking gear ring 4 is provided between the two slide blocks 3, which contains an electric heat pipe 13. The electric heat pipe 13 is not used as the main heat source. The role of the electric heat pipe 13 is to keep the molten part of the power tube body warm and to heat up the process during docking. However, it will not provide higher heat energy to make the power tube body melt.

[0044] In the specific docking process, the arc-shaped clamping block 8 serves as a clamping component, and the active pressing block 17 and the lateral moving block 19 serve as key structures of the directional power tube body. More specifically, the active pressing block 17 and the lateral moving block 19 are two components that slide against each other. However, when the two power tube bodies are fully docked, the active pressing block 17 plays a major role, while the displacement change is indirectly achieved through the lateral moving block 19.

[0045] Example 2

[0046] This embodiment explains the technical solution in Embodiment 1:

[0047] The second drive gear 10 does not mesh with the straight rack plate 9, and the diameter of the second drive gear 10 is smaller than the diameter of the transmission gear set 6. The docking gear ring 4 is rotatably connected in the directional seat 2. The second motor 14 is installed in the worktable 1 corresponding to the internal position of the directional seat 2. The first drive gear 7 is installed at the output end of the second motor 14. The first drive gear 7 meshes with the docking gear ring 4. An electrical connector 15 is provided above the docking gear ring 4. The electrical connector 15 is movably connected to the docking gear ring 4. The curvature of the outer wall of the drive pressure block 17 and the side moving block 19 near the power pipe body matches the outer wall of the power pipe body.

[0048] Solution Description: Refer to Figure 3 In this embodiment, the docking stroke between the two power tube bodies is relatively small. Therefore, a small gear drives a large gear to precisely control the movement distance of the slide 3. Specifically, the transmission process is achieved according to the transmission ratio between the second drive gear 10 and the transmission gear set 6. The purpose is to control and adjust the docking formation with a more precise movement distance.

[0049] Regarding the electric heat pipe 13, it should be noted that the temperature generated by the electric heat pipe 13 is not used as the melting temperature, but rather as the docking temperature. This means that the docking temperature does not "ensure" the electric heat pipe body is "melted," but rather maintains or stabilizes the docking process using a temperature equivalent to the melting temperature. Furthermore, it should be noted that the electric heat pipe 13 needs to rotate in a ring with the docking gear ring 4. This is achieved using the electrical connector 15. Essentially, the electrical connector 15 is in a relatively stable state relative to the rotating docking gear ring 4. Figure 6 In this case, the electric heat pipe 13 is fixed in the mating gear ring 4, and an electrical connection band is added to the mating gear ring 4 to match the electric heat pipe 13 and the electrical connector 15, so as to ensure that the electric heat pipe 13 is always energized.

[0050] Example 3

[0051] The following explanation is based on Embodiment 1 and Embodiment 2:

[0052] The usage process includes the following stages:

[0053] Preheating guidance phase

[0054] Step 1: Pass the two power tube bodies through the two directional rings 5, and complete the initial clamping and fixing action of the power tube bodies through multiple arc-shaped clamps 8, and preheat the end of the two power tube bodies that are close to each other.

[0055] Step 2: The two power tube bodies are brought close to each other but not closed by the slide block 3, and the second electric push rod 16 is activated so that the side moving blocks 19 are in contact with the power tube bodies, and the active pressing block 17 is not in contact with the power tube bodies.

[0056] Step 3: After step 2 is completed, the electric heat pipe 13 is used to heat and insulate the electric pipe body, and the second motor 14 drives the docking gear ring 4 to rotate at a constant speed of 120°, and the displayed values ​​on each displacement sensor 18 are recorded simultaneously.

[0057] Directional second phase

[0058] Step 4: Reposition the center points of the two power tube bodies using the values ​​displayed in Step 3, and calculate the eccentricity value by comparing the center point with the center point of the directional ring 5. Control one or more first electric push rods 12 to perform secondary adjustment based on the eccentricity value, so that the center point of the power tube body and the center point of the directional ring 5 are on the same horizontal axis.

[0059] Step 5: After step 4 is completed, the two power tube bodies are brought closer together by the slide block 3 until they are closed, and the electric heat pipe 13 is used to heat the power tube bodies simultaneously. The second motor 14 drives the docking gear ring 4 to rotate at a constant speed n times.

[0060] Step Six: While Step Five is in progress, control the movement stroke of the slide block 3 and the operating status of the second motor 14 again according to the displayed values ​​in Step Three.

[0061] Solution Description: (e.g.) Figure 7 To explain, the essence of steps one and two is that the two power tube bodies are in a molten state at their close ends. However, during the preheating and guiding stage, it is necessary to control the docking stroke of the two slide blocks 3. Specifically, the second electric push rod 16 drives the active pressure block 17 to move down until the side moving block 19 contacts the outer wall of the power tube body. However, the active pressure block 17 does not contact the power tube body. Then, when cooperating with the rotation of the docking gear ring 4, because the three second electric push rods 16 are arranged at 120° angles, the docking gear ring 4 only needs to rotate 120° during the preheating and orientation stage to obtain the contour data of the power tube body.

[0062] In conjunction with the above, it can be explained that, as in step one, when the power tube body is initially clamped and fixed, the movement stroke of each arc-shaped clamping block 8 is consistent and in the same direction. Therefore, it can be understood that when the power tube body is initially clamped and fixed, its center point and the center point of the directional ring 5 are on the same horizontal axis. Thus, the center point of each directional ring 5 is on the same horizontal axis.

[0063] However, in actual operation, according to the rotation process of the docking gear ring 4 in the preheating guidance stage, theoretically, if the center point of the power tube body in the directional ring 5 is on the same horizontal axis as the center point of the directional ring 5, then the displayed value on the displacement sensor 18 will never change; otherwise, the displayed value on the displacement sensor 18 will change in an unorienting direction.

[0064] Based on the central contour of the docking gear ring 4, a contour curve is established according to the displayed value of each displacement sensor 18. The three contour curves are combined into a closed circle. The eccentricity value is obtained by comparing the center point of this circle with the center point of the docking gear ring 4. Based on the eccentricity value, each first electric push rod 12 is adjusted twice until the eccentricity value is equal to 0, thereby completing the alignment process of the two electric tube bodies. In the preheating and guiding stage, the heat generated by the electric heat pipe 13 only keeps the molten part in the electric tube body warm, preventing the electric tube body from condensing before docking.

[0065] During the directional secondary connection process, the moving distance of the slide 3 needs to be controlled again based on the distance between the two power tube bodies during the preheating and guiding stage. If the distance between the two power tube bodies is L, then the moving distance of the slide 3 is L / 2. After the slide 3 moves L / 2, it only means that the two power tube bodies are in contact, but it is difficult to ensure that the two are fully condensed into one. Therefore, the two slides 3 need to move synchronously in opposite directions, and combined with the transmission method of the small gear driving the large gear, the slide 3 moves a second time in a small number of steps, so that the two power tube bodies can fully "contact" and form one.

[0066] It should also be noted during the second-stage directional connection process that if the number of steps in the secondary movement of the slide block 3 is large, it will inevitably cause problems such as folds and anisotropic deformation at the joint of the two power tube bodies. In this case, during the secondary movement, the second motor 14 needs to drive the docking gear ring 4 to rotate at a constant speed again. In this process, it should also be noted that the two power tube bodies only use the active pressure block 17 as the direct structure, and the rotation speed of the docking gear ring 4 is relatively fast during the secondary movement. The purpose is that when the two power tube bodies are completely "in contact" and form a whole and folds and anisotropic deformation occur, the folds and anisotropic deformation will cause the active pressure block 17 to be squeezed outward, so that the displayed value of the displacement sensor 18 continues to change, thereby stopping the secondary movement of the two slide blocks 3.

[0067] Furthermore, it should be noted that during the directional secondary connection stage, the heat generated by the electric heat pipe 13 addresses the melting temperature. The purpose of this is to "heat and melt" the parts with problems such as folds and anisotropic deformation when problems occur, even though the secondary movement process has stopped. Then, the active pressing block 17 is used to "smooth" the parts with problems such as folds and anisotropic deformation, thereby ensuring that the joint of the integrated electric conduit body is relatively smooth and neat.

[0068] In summary, the thermal fusion process of MPP power pipes can be divided into two stages: preheating and directional connection. Essentially, before connection, the displacement changes caused by the lateral moving block's interaction with the outer wall of the power pipe are used to indirectly indicate the eccentricity between the power pipe body and the directional ring. A secondary adjustment process then brings the eccentricity to zero, ensuring complete alignment between the two power pipes and preventing misalignment. During the directional connection stage, the aforementioned displacement changes are simultaneously used to indirectly indicate the connection effect, specifically controlling the connection stroke and temperature to prevent issues such as folds, misalignment, and gaps.

[0069] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0070] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0071] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An MPP power pipe connection device with a guiding alignment mechanism, comprising a workbench (1) and a power pipe body, characterized in that, The workbench (1) is provided with a directional seat (2) and two slides (3) along its length direction, and a controller is provided inside the workbench (1). The directional seat (2) is located in the middle of the slides (3), and the directional seat (2) is installed on the workbench (1). The two slides (3) are symmetrically arranged along the directional seat (2). Two directional rings (5) are installed on the slide (3). The power tube body is located in the directional ring (5) on the slide (3). A docking gear ring (4) is provided on the directional seat (2). Four first electric push rods (12) are installed on the directional ring (5). An arc-shaped clamp (8) is installed at the output end of the four first electric push rods (12). The four first electric push rods (12) are arranged in a circular array along the center point of the directional ring (5). An electric heat pipe (13) and three second electric push rods (16) are installed inside the docking gear ring (4). The three second electric push rods (16) are arranged in a circular array along the center point of the docking gear ring (4). An active pressure block (17) is installed at the output end of the second electric push rod (16). A side moving block (19) is slidably installed on the outer wall of the active pressure block (17) in the direction perpendicular to the center point of the docking gear ring (4). A displacement sensor (18) corresponding to the side moving block (19) is installed on the inner wall of the docking gear ring (4). The output end of the displacement sensor (18) is fixedly connected to the side moving block (19). A second motor (14) is installed in the inner position of the worktable (1) corresponding to the orientation seat (2). During use, the following stages are included: Preheating guidance phase Step 1: Pass the two power tube bodies through the two directional rings (5), and complete the initial clamping and fixing action of the power tube bodies through multiple arc-shaped clamps (8), and preheat the two power tube bodies at the ends that are close to each other. Step 2: Use the slide block (3) to bring the two power tube bodies close to each other without closing them, and start the second electric push rod (16) so that the side moving blocks (19) all contact the power tube bodies, and the active pressing block (17) does not contact the power tube bodies. Step 3: After step 2 is completed, the electric heat pipe (13) is used to heat and keep the electric pipe body warm, and the docking gear ring (4) is driven by the second motor (14) to rotate at a constant speed of 120°, and the display value on each displacement sensor (18) is recorded simultaneously. Directional second phase Step 4: Reposition the center points of the two power tube bodies using the values ​​displayed in Step 3, and calculate the eccentricity value by comparing the center point with the center point of the directional ring (5). Control one or more first electric push rods (12) to perform secondary adjustment through the eccentricity value so that the center point of the power tube body and the center point of the directional ring (5) are on the same horizontal axis. Step 5: After completing Step 4, the two power tube bodies are brought closer together by the slide (3) until they are closed, and the electric heat pipe (13) is used to heat the power tube bodies simultaneously. The second motor (14) drives the docking gear ring (4) to rotate n times at a constant speed. Step 6: During step 5, control the movement stroke of the slide (3) and the running status of the second motor (14) again according to the displayed values ​​in step 3.

2. The MPP power pipe connection device with a guide alignment mechanism according to claim 1, characterized in that, The two slide blocks (3) are slidably connected along the length of the worktable (1), and a straight rack plate (9) is installed on the lower surface of the slide block (3). A transmission gear set (6) that meshes with the straight rack plate (9) is rotatably installed inside the worktable (1), and a first motor (11) is fixedly installed inside the worktable (1). A second drive gear (10) that meshes with the transmission gear set (6) is installed at the output end of the first motor (11).

3. The MPP power pipe connection device with a guide alignment mechanism according to claim 2, characterized in that, The second driving gear (10) does not mesh with the straight rack plate (9), and the diameter of the second driving gear (10) is smaller than the diameter of the transmission gear set (6).

4. An MPP power pipe connection device with a guide alignment mechanism according to claim 1, characterized in that, The docking gear ring (4) is rotatably connected in the directional seat (2), and a first drive gear (7) is installed at the output end of the second motor (14), and the first drive gear (7) meshes with the docking gear ring (4).

5. An MPP power pipe connection device with a guide alignment mechanism according to claim 4, characterized in that, An electrical connector (15) is provided above the docking gear ring (4), and the electrical connector (15) is movably connected to the docking gear ring (4).

6. The MPP power pipe connection device with a guide alignment mechanism according to claim 1, characterized in that, The curvature of the outer wall of the active pressure block (17) and the lateral moving block (19) near the power tube body is matched with that of the outer wall of the power tube body.

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