Fully automatic cutting device for high voltage XPLE cross-linked polyethylene cable terminal conical head

Abstract

The present invention relates to a fully automatic cutting device for a conical head of a high-voltage XPLE cross-linked polyethylene cable terminal, comprising a frame, a clamping mechanism for clamping a cable, a cutting mechanism for cutting a cable, a driving mechanism for driving the cutting mechanism to move in a circular motion, move along the axial direction of the cable, and move along the radial direction of the cable, and a controller for controlling the operation of the driving mechanism, wherein the clamping mechanism, the cutting mechanism, the driving mechanism, and the controller are all mounted on the frame, and the driving mechanism is respectively connected to the cutting mechanism and the controller. Compared with the prior art, the present invention can perform motion control from three dimensions, the equipment is more automated and standardized, the skill requirements for operators are lower, the equipment is scalable, the consistency of the technical level is higher, and the operating threshold for operators is reduced.

Description

Technical Field

[0001] The invention relates to a cutting device, in particular to a fully automatic cutting device for a conical head of a high-voltage XPLE cross-linked polyethylene cable terminal. Background Art

[0002] The quality of the cable terminal cone head directly affects the operation safety and life of the cable. At present, there is no fully automatic cutting device on the market for 110kV and 220kV high-voltage cable cone heads. The traditional cable terminal cone head is mainly made by hand, by constantly adjusting the cutting feed, and adjusting the cutting diameter once for each cutting circle, so as to gradually form a step-like taper. After long-term practice, it is found that such a cable terminal cone head has the following main disadvantages:

[0003] 1. The working hours are long, and the operators need to waste a lot of time on tapered head cutting.

[0004] 2. The processing effect is poor. It is difficult to make the cutting taper neat and uniform by constantly adjusting the feed amount to make the tapered head, which leaves a huge workload for the subsequent grinding process.

[0005] 3. It leaves hidden dangers. The process of manually cutting the conical head can easily leave hidden dangers and even bring difficulties to the grinding process. The final cutting effect is very dependent on the skill level and work experience of the operator. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a fully automatic cutting device for the conical head of a high-voltage XPLE cross-linked polyethylene cable terminal.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A fully automatic cutting device for a conical head of a high-voltage XPLE cross-linked polyethylene cable terminal comprises a frame, a clamping mechanism for clamping a cable, a cutting mechanism for cutting the cable, a driving mechanism for driving the cutting mechanism to move in a circular motion, along the axial direction of the cable and along the radial direction of the cable, and a controller for controlling the operation of the driving mechanism. The clamping mechanism, the cutting mechanism, the driving mechanism and the controller are all mounted on the frame, and the driving mechanism is respectively connected to the cutting mechanism and the controller.

[0009] The clamping mechanism comprises a first clamp assembly and a second clamp assembly, and the driving mechanism comprises:

[0010] Turntable (4);

[0011] A radial servo motor (18) is mounted on the turntable and connected to the cutting mechanism via a third transmission module, and is used to drive the cutting mechanism to move along the radial direction of the cable;

[0012] A slip ring, mounted on the frame and sliding along the axial direction of the cable, for mounting the turntable (4);

[0013] A turntable servo motor (22) is mounted on the second fixture assembly and connected to the base of the slip ring through the first transmission module to drive the cutting mechanism to move along the axial direction of the cable;

[0014] A cutting servo motor (1) is mounted on the slip ring and connected to the turntable (4) via a second transmission module, and is used to drive the cutting mechanism to rotate in a circular motion;

[0015] The radial servo motor (18), the turntable servo motor (22) and the cutting servo motor (1) are all connected to a controller, and the controller controls the machining taper by controlling the speed ratio of the turntable servo motor (22) and the radial servo motor (18), and controls the cutting accuracy by controlling the speed ratio of the cutting servo motor (1) and the turntable servo motor (22).

[0016] The third transmission module is a worm gear unit (17).

[0017] The first transmission module comprises a first reducer (23) connected to a turntable servo motor (22), a chain (8), a sprocket (20), a threaded rod (16) and a sliding rod (5), wherein two threaded rods (16) and two sprockets (20) are provided and the number of the threaded rods (16) and the sliding rods (5) are the same, the threaded rods (16) and the sliding rods (5) are arranged along the axial direction of the cable, and the total number of the threaded rods (16) and the sliding rods (5) is at least 4, each sprocket (20) is respectively fixed to one end of each threaded rod (16), the threaded rod (16) and the sliding rod (5) are connected to the base of the slip ring, the chain (8) is wound around the first reducer (23) and each sprocket (20), and the sprocket (20) drives each threaded rod (16) to rotate and drive the slip ring to move along the axial direction of the cable.

[0018] The base of the slip ring comprises a plurality of support plates (10), and the turntable servo motor (22) is mounted on the second fixture assembly via a turntable servo motor mounting frame (21).

[0019] The second transmission module comprises a second reducer (2) and a synchronous belt structure (3) which are connected in sequence, and the synchronous belt structure (3) is connected to a rotating disk (4).

[0020] The cutting mechanism comprises a tool and a tool holder (19) for fixing the tool.

[0021] The first clamp assembly comprises an inner fixing plate (11) and a first cable clamp, and the first cable clamp is installed on the frame via the inner fixing plate (11).

[0022] The second clamp assembly comprises a second cable clamp, a driving fixing plate (6) and a connecting plate (9); the second cable clamp is mounted on the frame via the driving fixing plate (6), and the chain (8) is mounted on the driving fixing plate (6) via the connecting plate (9).

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1) Motion control can be performed in three dimensions, the equipment is more automated and standardized, the skill requirements for operators are lower, the equipment is scalable, the technical level is more consistent, and the operating threshold for operators is lowered.

[0025] 2) Visually perform high-precision cutting taper control to achieve the production of tapered heads with different parameters. By simply inputting a few key parameters of the tapered head, precise control of the taper can be achieved.

[0026] 3) Operators save time and effort. After setting the taper parameters, the molding is completed in one step, which saves operators time and effort.

[0027] 4) Better cutting effect and less human influence factors. It has significantly better cutting effect, and automated processing is less affected by human influence. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view schematic diagram of the present invention;

[0029] Figure 2 It is a right side schematic diagram of the present invention;

[0030] Figure 3 It is a top view schematic diagram of the present invention;

[0031] Figure 4 It is a left side schematic diagram of the present invention;

[0032] Among them: 1. cutting servo motor, 2. second reducer, 3. synchronous belt structure, 4. turntable, 5. sliding rod, 6. driving fixed plate, 7. washer, 8. chain, 9. connecting plate, 10. support plate, 11. inner fixed plate, 12. frame, 13. support foot, 14. first cable clamp body, 15. nut, 16. threaded rod, 17. worm gear turbine group, 18. radial servo motor, 19. tool holder, 20. sprocket, 21. turntable servo motor mounting frame, 22. turntable servo motor, 23. first reducer, 24. screw, 25. fixture fixing seat, 26. trapezoidal left and right threaded screw, 27. second cable clamp body. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0034] A fully automatic cutting device for a high-voltage XPLE cross-linked polyethylene cable terminal conical head comprises a frame, a clamping mechanism for clamping the cable, a cutting mechanism for cutting the cable, a driving mechanism for driving the cutting mechanism to move in a circular motion, along the axial direction of the cable and along the radial direction of the cable, and a controller for controlling the operation of the driving mechanism. The clamping mechanism, the cutting mechanism, the driving mechanism and the controller are all mounted on the frame, and the driving mechanism is respectively connected to the cutting mechanism and the controller. The frame body is a frame 12. .

[0035] The clamping mechanism includes a first clamp assembly and a second clamp assembly, and the driving mechanism includes:

[0036] Turntable 4;

[0037] A radial servo motor 18 is mounted on the turntable and connected to the cutting mechanism via a third transmission module, and is used to drive the cutting mechanism to move radially along the cable;

[0038] A slip ring is installed on the frame and slides along the cable axis, and is used to install the turntable 4;

[0039] The turntable servo motor 22 is mounted on the second fixture assembly and connected to the base of the slip ring through the first transmission module to drive the cutting mechanism to move along the axial direction of the cable;

[0040] The cutting servo motor 1 is mounted on the slip ring and connected to the turntable 4 through the second transmission module to drive the cutting mechanism to rotate in a circular motion;

[0041] The radial servo motor 18 , the turntable servo motor 22 and the cutting servo motor 1 are all connected to the controller. The controller controls the machining taper by controlling the speed ratio of the turntable servo motor 22 and the radial servo motor 18 , and controls the cutting accuracy by controlling the speed ratio of the cutting servo motor 1 and the turntable servo motor 22 .

[0042] The third transmission module is the worm gear unit 17 .

[0043] The first transmission module includes a first reducer 23 connected to a turntable servo motor 22, as well as a chain 8, a sprocket 20, a threaded rod 16 and a sliding rod 5. The threaded rods 16 and the sprockets 20 are each provided with two and the number is the same. The threaded rods 16 and the sliding rods 5 are both arranged along the cable axis, and the sum of the number is at least 4. Each sprocket 20 is respectively fixed at one end of each threaded rod 16. The threaded rod 16 and the sliding rod 5 are both connected to the base of the slip ring. The chain 8 is wound around the first reducer 23 and each sprocket 20. The sprocket 20 drives each threaded rod 16 to rotate and drives the slip ring to move along the cable axis.

[0044] The base of the slip ring includes a plurality of support plates 10, on which nuts 15 are arranged, and threaded rods 16 cooperate with the nuts 15. The turntable servo motor 22 is mounted on the second fixture assembly through a turntable servo motor mounting frame 21.

[0045] The second transmission module includes a second reducer 2 and a synchronous belt structure 3 which are connected in sequence, and the synchronous belt structure 3 is connected to a rotating disk 4 .

[0046] The cutting mechanism comprises a tool and a tool holder 19 for fixing the tool.

[0047] The first clamp assembly includes an inner fixing plate 11 and a first cable clamp, and the first cable clamp is installed on the frame through the inner fixing plate 11. The second clamp assembly includes a second cable clamp, a driving fixing plate 6, and a connecting plate 9. The second cable clamp is installed on the frame through the driving fixing plate 6, and the chain 8 is installed on the driving fixing plate 6 through the connecting plate 9. A gasket 7 is provided between the connecting plate 9 and the driving fixing plate 6. The first cable clamp includes a first cable clamp body 14 and related handwheels and clamp fixing seats 25, etc. The second clamp assembly is similar, including a second cable clamp body 27 and corresponding handwheels and clamp fixing seats 25, etc.

[0048] The above-mentioned fully automatic conical head cutting device is realized based on the automatic control of the PLC controller. To form a conical head, the cutting tool needs to have three degrees of freedom: the first action is that the tool needs to rotate around the cable in a circle to cut, the second action is that the tool translates along the axial direction of the cable, and the third action is that the tool moves along the radial direction and gradually retracts. The motion parameters of these three tool actions are controlled by PLC, which can realize the production of conical heads with various tapers. Therefore, the three degrees of freedom correspond to three DC motors and corresponding reduction mechanisms.

Claims

1. A fully automatic cutting device for high-voltage XPLE cross-linked polyethylene cable terminal conical head, characterized in that: It includes a frame, a clamping mechanism for clamping the cable, a cutting mechanism for cutting the cable, a driving mechanism for driving the cutting mechanism to move in a circular motion, along the axial direction of the cable, and along the radial direction of the cable, and a controller for controlling the operation of the driving mechanism. The clamping mechanism, the cutting mechanism, the driving mechanism, and the controller are all installed on the frame, and the driving mechanism is respectively connected to the cutting mechanism and the controller; The clamping mechanism comprises a first clamp assembly and a second clamp assembly, and the driving mechanism comprises: Turntable (4); A radial servo motor (18) is mounted on the turntable and connected to the cutting mechanism via a third transmission module, and is used to drive the cutting mechanism to move along the radial direction of the cable; A slip ring, mounted on the frame and sliding along the cable axis, for mounting the turntable (4); A turntable servo motor (22) is mounted on the second fixture assembly and connected to the base of the slip ring via the first transmission module to drive the cutting mechanism to move along the axial direction of the cable; A cutting servo motor (1) is mounted on the slip ring and connected to the turntable (4) via a second transmission module, and is used to drive the cutting mechanism to rotate in a circular motion; The radial servo motor (18), the turntable servo motor (22) and the cutting servo motor (1) are all connected to a controller, and the controller controls the taper of machining by controlling the speed ratio of the turntable servo motor (22) and the radial servo motor (18), and controls the cutting accuracy by controlling the speed ratio of the cutting servo motor (1) and the turntable servo motor (22); The cutting mechanism comprises a tool and a tool holder (19) for fixing the tool.

2. A fully automatic cutting device for high-voltage XPLE cross-linked polyethylene cable terminal conical head according to claim 1, characterized in that: The third transmission module is a worm gear unit (17).

3. The fully automatic cutting device for the conical head of a high-voltage XPLE cross-linked polyethylene cable terminal according to claim 1 is characterized in that: The first transmission module comprises a first reducer (23) connected to a turntable servo motor (22), a chain (8), a sprocket (20), a threaded rod (16) and a sliding rod (5), wherein two threaded rods (16) and two sprockets (20) are provided and the number of the threaded rods (16) and the sliding rods (5) are the same, the threaded rods (16) and the sliding rods (5) are arranged along the axial direction of the cable, and the total number of the threaded rods (16) and the sliding rods (5) is at least 4, each sprocket (20) is respectively fixed to one end of each threaded rod (16), and the threaded rods (16) and the sliding rods (5) are connected to the base of the slip ring, and the chain (8) is wound around the first reducer (23) and each sprocket (20), and the sprocket (20) drives each threaded rod (16) to rotate and drive the slip ring to move along the axial direction of the cable.

4. A fully automatic cutting device for high-voltage XPLE cross-linked polyethylene cable terminal conical head according to claim 3, characterized in that: The base of the slip ring comprises a plurality of support plates (10), and the turntable servo motor (22) is mounted on the second fixture assembly via a turntable servo motor mounting frame (21).

5. The fully automatic cutting device for the conical head of a high-voltage XPLE cross-linked polyethylene cable terminal according to claim 1 is characterized in that: The second transmission module comprises a second reducer (2) and a synchronous belt structure (3) which are connected in sequence, and the synchronous belt structure (3) is connected to a rotating disk (4).

6. The fully automatic cutting device for the conical head of a high-voltage XPLE cross-linked polyethylene cable terminal according to claim 1 is characterized in that: The first clamp assembly comprises an inner fixing plate (11) and a first cable clamp, and the first cable clamp is mounted on the frame via the inner fixing plate (11).

7. The fully automatic cutting device for the conical head of a high-voltage XPLE cross-linked polyethylene cable terminal according to claim 3 is characterized in that: The second clamp assembly comprises a second cable clamp, a drive fixing plate (6), and a connecting plate (9); the second cable clamp is mounted on the frame via the drive fixing plate (6), and the chain (8) is mounted on the drive fixing plate (6) via the connecting plate (9).

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