A tool for clamp-on installation of a clamp-on ammeter and a method of operating the same

Abstract

The application relates to a tool for clamp installation of a clamp ammeter and an operation method thereof. The tool comprises a docking assembly, a swing rod, an installation assembly and a current clamp; the docking assembly is installed at the bottom of the installation assembly based on the installation assembly, and the docking assembly is power-connected to a robot; one side of the installation assembly is provided with the swing rod, the docking assembly is power-connected to the swing rod, the current clamp is movably installed at the upper part of the installation assembly, and the head end of the swing rod can elastically press the tail end of the current clamp. The installation assembly has a hollow structure, the docking assembly has a cylindrical connecting sleeve, the connecting sleeve is fixedly connected to the tail end of the installation assembly, the docking assembly is provided with a power shaft in the connecting sleeve, the upper end of the power shaft is provided with a power driving head; a swing rod fixing seat is arranged at the middle of the side of the installation assembly, the swing rod is movably connected to the top end of the swing rod fixing seat through a rotating shaft, the tail end of the swing rod is power-connected to the swing rod fixing seat, and the head end of the swing rod is close to the tail end of the current clamp.

Description

Technical Field

[0001] The invention relates to a tool for clamping and installing a clamp ammeter and an operating method thereof. Background Art

[0002] High-voltage line testing is an important step to ensure the safety of power operations. Currently, the main method of high-voltage line testing is manual operation.

[0003] First, the operator wears insulating gloves and shoes and carries a voltage detector of the appropriate voltage level to climb the pole, with an additional person providing supervision. Once on the pole, the operator gradually approaches the main line under test by manipulating the detector until the neon tube lights up, then immediately withdraws. At this point, the operator must avoid contact with the equipment, which can generate induced voltage. The entire operation requires the use of a variety of insulating protective gear and tools, and manual operation is cumbersome and carries high safety risks. Therefore, it is necessary to replace manual operation with automated equipment. To adapt to technological developments, it is necessary to employ corresponding robots for operation. However, existing robots do not yet have dedicated end-effectors designed for high-voltage line testing. Therefore, to improve operational efficiency and ensure operator safety, it is necessary to develop a robotic end-effector that can perform high-voltage line testing tasks. Summary of the Invention

[0004] In view of this, the present invention provides a tool for clamping and installing a clamp ammeter and an operating method thereof; after the robot is equipped with the technical solution of the present invention, it can perform electricity testing on high-voltage lines without manual climbing, and has good use and promotion effects.

[0005] A tool for clamping and installing a clamp-on ammeter comprises a docking assembly, a pendulum, a mounting assembly and a current clamp. The mounting assembly is used as a basis, the docking assembly is installed at the bottom of the mounting assembly, and the docking assembly is dynamically connected to a robot. A pendulum is provided on one side of the mounting assembly, the docking assembly is dynamically connected to the pendulum, and the current clamp is movably installed on the upper part of the mounting assembly. The head end of the pendulum can elastically press the tail end of the current clamp, thereby controlling the opening and closing state of the current clamp.

[0006] The mounting assembly has a hollow structure, and the docking assembly has a cylindrical connecting sleeve, which is fixedly connected to the tail end of the mounting assembly by screws or buckles. A rotatable power shaft is provided in the connecting sleeve of the docking assembly, and the upper end of the power shaft has a power drive head; a rocker arm fixing seat is provided in the middle of the side of the mounting assembly, and the top end of the rocker arm fixing seat is movably connected to the rocker arm through a rotating shaft, the tail end of the rocker arm is dynamically connected to the rocker arm fixing seat, and the head end of the rocker arm is close to the tail end of the current clamp.

[0007] The current clamp has two interlocking clamp heads, wherein the first clamp head of one lobe is fixedly connected to one side of the top of the mounting assembly, and the other clamp head is movably mounted on the other side of the top of the mounting assembly via a rotating shaft. A torsion spring is mounted on the rotating shaft of the movably mounted second clamp head to ensure that the two clamp heads are in a closed state when not in use; the second clamp head is provided with a fan-shaped pressure plate below the rotating shaft, and the top end of the rocker arm cooperates with the pressure plate. When the top end of the rocker arm is squeezed inward, the pressure plate drives the second end of the clamp head to rotate outward, and the current clamp is in an open state.

[0008] Furthermore, the upper half of the swing rod has an outward swinging arc, which can effectively disperse the applied external force and improve the pressure strength of the swing rod.

[0009] The top of the rocker arm has a rotatable shaft head. When driven, the top of the rocker arm rolls relative to the pressure plate on the second clamp head, reducing friction resistance, thereby reducing the applied force and reducing the degree of wear on the pressure plate side, thereby increasing service life.

[0010] A mounting seat is also installed on the mounting assembly. The mounting seat is a knob mounting seat, and corresponding cables can be connected through the mounting seat according to actual needs.

[0011] The power drive head is a grooved wheel, the upper surface of which has an inwardly concave groove. The rocker arm is movably connected to a connecting rod through a rotating shaft, and the tail end of the connecting rod is embedded in the groove. The groove is elliptical or an elliptical arc, preferably an elliptical shape. When the power shaft drives the grooved wheel to rotate along the center point, since the groove has an elliptical arc, different positions of the elliptical arc have different distances from the center point, thereby driving the rocker arm to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp.

[0012] The grooved runner is a metal part that has been carburized to increase the wear resistance of the part.

[0013] Furthermore, a rotatable shaft head is also provided at the end of the connecting rod on the rocker arm to reduce friction resistance, reduce the degree of wear of the groove and the connecting rod, and thus increase the service life.

[0014] Furthermore, the outer edge of the grooved wheel has anti-slip grooves, and a corresponding opening is provided at the mounting assembly to prevent the operator from manually turning the grooved wheel to control the opening and closing of the current clamp while wearing insulating gloves when the power shaft fails to rotate or gets stuck.

[0015] Furthermore, the power drive head is an elliptical cam, and the end of the rocker arm is movably connected to a connecting rod, the tail end of the connecting rod is pressed against the side of the elliptical cam, and the rotation of the elliptical cam is used to control the rocker arm to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp.

[0016] Furthermore, a limit block is provided on the mounting assembly to limit the connecting rod on the swing arm within a certain range to prevent large-scale shaking.

[0017] Furthermore, the elliptical cam is a carburized metal part, and a rotatable shaft head is also provided at the end of the connecting rod to reduce friction resistance, reduce the wear of the elliptical cam and the connecting rod, and thus increase the service life.

[0018] The power shaft is controlled by a stepper motor or a servo motor.

[0019] When in use, the power drive head is driven to rotate by the rotation of the power shaft, and then the pendulum arm is driven to swing within a predetermined range through the connecting rod. When the pendulum arm swings, its upper part presses the pressure plate of the clamp head 2 and cooperates with the torsion spring on the clamp head 2 to accurately control the opening and closing state of the current clamp.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Wireless tools are suitable for live operations of robots.

[0022] 2. The wireless current test tool simply realizes the opening and closing action of the current clamp through the form of a cam connecting rod. The entire operation process is simple, safe and efficient.

[0023] Before operating the wireless electrical test tool, rotate the drive shaft so that the drive pin moves inward and the rocker arm swings outward. Then, insert the current clamp into the mounting frame and tighten the knobs on both sides so that the head presses inward against the current clamp while simultaneously pressing the mounting base. This completes the installation of the current clamp. During operation, an insulated boom truck transports the live working robot to the work area. A robotic arm carrying the working tool approaches the live main line. Power from the end of the robotic arm rotates the drive shaft clockwise, and a pressing bearing, through a slotted cam, rocker arm, and other structures, presses the current clamp button, opening the clamp. The opening is then moved to the inside of the conductor and closed. The camera on the robotic arm observes the current clamp's indicator light to complete the electrical test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall schematic diagram of a current clamp installed in a wireless electrical testing tool according to an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a current clamp in an example of the present invention;

[0026] Figure 3 This is an overall schematic diagram of a wireless electrical testing tool according to an embodiment of the present invention;

[0027] Figure 4 A cross-sectional schematic diagram of an online electrical testing tool according to an embodiment of the present invention;

[0028] Figure 5 Schematic diagram of a top view of a connecting rod and a power drive head in an embodiment of the present invention (the power drive head is a grooved wheel);

[0029] Figure 6 Schematic diagram of a top view of a connecting rod and a power drive head in an embodiment of the present invention (the power drive head is an elliptical cam). DETAILED DESCRIPTION

[0030] The following is a combination of the embodiments of the present invention Figure 1-6 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] A tool for clamping and installing a clamp-on ammeter comprises a docking assembly 1, a pendulum 2, a mounting assembly 3 and a current clamp 4. The mounting assembly 3 is used as a basis, the docking assembly 1 is installed at the bottom of the mounting assembly 3, and the docking assembly 1 is dynamically connected to a robot. A pendulum 2 is provided on one side of the mounting assembly 3, the docking assembly 1 is dynamically connected to the pendulum 2, and the current clamp 4 is movably installed on the upper part of the mounting assembly 3. The head end of the pendulum 2 can elastically press the tail end of the current clamp 4, thereby controlling the opening and closing state of the current clamp 4.

[0032] The mounting assembly 3 has a hollow structure, and the docking assembly 1 has a cylindrical connecting sleeve 1-1, which is fixedly connected to the tail end of the mounting assembly 3 by screws or snaps. A rotatable power shaft 1-2 is provided in the connecting sleeve 1-1 of the docking assembly 1, and the upper end of the power shaft 1-2 has a power drive head 1-3; a rocker arm fixing seat 3-1 is provided in the middle of the side of the mounting assembly 3, and the top end of the rocker arm fixing seat 3-1 is movably connected to the rocker arm 2 through a rotating shaft, and the tail end of the rocker arm 2 is dynamically connected to the rocker arm fixing seat 3-1, and the head end of the rocker arm 2 is close to the tail end of the current clamp 4.

[0033] The current clamp 4 has two interlocking clamp heads, wherein the clamp head 1 4-1 of one lobe is fixedly connected to one side of the top of the mounting assembly 3, and the other lobe is movably mounted on the other side of the top of the mounting assembly 3 through a rotating shaft. A torsion spring is installed on the rotating shaft of the movably mounted clamp head 2 4-2 to ensure that the two clamp heads are in a closed state when not in use; the clamp head 2 4-2 is provided with a fan-shaped pressure plate 4-2-1 below the rotating shaft, and the top of the rocker arm 2 cooperates with the pressure plate 4-2-1. When the top of the rocker arm 2 is squeezed inward, the pressure plate 4-2-1 drives the head end of the clamp head 2 4-2 to rotate outward, and the current clamp 4 is in an open state.

[0034] Furthermore, the upper half of the swing rod 2 has an outward swinging arc 2 - 1 , which can effectively disperse the applied external force and improve the pressure strength of the swing rod 2 .

[0035] The top of the rocker arm 2 has a rotatable shaft head 2-2. When driven, the top of the rocker arm 2 rolls relative to the pressure plate 4-2-1 on the clamp head 2 4-2, reducing friction resistance, thereby reducing the applied force and reducing the degree of wear on the side of the pressure plate 4-2-1, thereby increasing service life.

[0036] A mounting seat 3-2 is also installed on the mounting assembly 3. The mounting seat 3-2 is a knob mounting seat, and corresponding cables can be connected through the mounting seat 3-2 according to actual needs.

[0037] The power drive head 1-3 is a grooved wheel, and the upper surface of the grooved wheel has an inwardly concave groove 1-3-1. The pendulum rod 2 is movably connected to the connecting rod 5 through a rotating shaft, and the tail end of the connecting rod 5 is embedded in the groove 1-3-1; the groove 1-3-1 is elliptical or an elliptical arc, preferably an elliptical shape. When the power shaft 1-2 drives the grooved wheel to rotate along the center point, since the groove 1-3-1 has an elliptical arc, different positions of the elliptical arc have different distances from the center point, thereby driving the pendulum rod 2 to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp 4.

[0038] The grooved runner is a metal part that has been carburized to increase the wear resistance of the part.

[0039] Furthermore, the end of the connecting rod 5 on the rocker arm 2 is also provided with a rotatable shaft head to reduce friction resistance, reduce the wear of the groove 1-3-1 and the connecting rod 5, and thus increase the service life.

[0040] Furthermore, the outer edge of the grooved wheel has anti-slip grooves, and a corresponding opening is provided at the mounting assembly 3 to prevent the operator from manually turning the grooved wheel to control the opening and closing of the current clamp 4 while wearing insulating gloves when the power shaft 1-2 fails to rotate or gets stuck.

[0041] Furthermore, the power drive head 1-3 is an elliptical cam, and the end of the rocker arm 2 is movably connected to a connecting rod 5, and the tail end of the connecting rod 5 is pressed against the side of the elliptical cam. The rotation of the elliptical cam is used to control the rocker arm 2 to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp 4.

[0042] Furthermore, a limit block is provided on the mounting assembly 3 to limit the connecting rod 5 on the rocker arm 2 within a certain range to prevent large-scale shaking.

[0043] Furthermore, the elliptical cam is a carburized metal part, and a rotatable shaft head is also provided at the end of the connecting rod 5 to reduce friction resistance, reduce the wear of the elliptical cam and the connecting rod 5, and thus increase the service life.

[0044] The power shaft 1-2 is controlled by a stepper motor or a servo motor.

[0045] When in use, the power drive head 1-3 is driven to rotate by the rotation of the power shaft 1-2, and then the pendulum rod 2 is driven to swing within a predetermined range through the connecting rod 5. When the pendulum rod 2 swings, its upper part presses the pressure plate 4-2-1 of the clamp head 2 4-2 and cooperates with the torsion spring on the clamp head 2 4-2 to accurately control the opening and closing state of the current clamp 4.

Claims

1. A tool for clamping and installing a clamp ammeter, characterized by: The robot comprises a docking assembly, a pendulum, a mounting assembly, and a current clamp. The mounting assembly is the basis, with the docking assembly installed at the bottom of the mounting assembly, and the docking assembly is dynamically connected to the robot. A pendulum is provided on one side of the mounting assembly, and the docking assembly and the pendulum are dynamically connected. The current clamp is movably installed on the upper part of the mounting assembly, and the head end of the pendulum can elastically press the tail end of the current clamp to control the opening and closing state of the current clamp. The mounting assembly has a hollow structure, and the docking assembly has a cylindrical connecting sleeve, which is fixedly connected to the tail end of the mounting assembly by screws or buckles. A rotatable power shaft is provided in the connecting sleeve of the docking assembly, and the upper end of the power shaft has a power drive head. A pendulum rod fixing seat is provided in the middle of the side of the mounting assembly, and the top end of the pendulum rod fixing seat is movably connected to the pendulum rod via a rotating shaft. The middle end of the pendulum rod is rotatably connected to the pendulum rod fixing seat, and the head end of the pendulum rod is closely attached to the tail end of the current clamp. The current clamp has two interlocking clamp heads, wherein the first clamp head of one clamp head is fixedly connected to one side of the top of the mounting assembly, and the other clamp head is movably mounted on the other side of the top of the mounting assembly via a rotating shaft. A torsion spring is mounted on the rotating shaft of the movably mounted second clamp head to ensure that the two clamp heads are in a closed state when not in use; a fan-shaped pressure plate is provided below the rotating shaft of the second clamp head, and the top end of the swing rod cooperates with the pressure plate. When the top end of the swing rod is squeezed inward, the pressure plate drives the second end of the clamp head to rotate outward, and the current clamp is in an open state. The power driving head is a grooved wheel with an upper surface having an inwardly concave groove. The rocker arm is movably connected to a connecting rod through a rotating shaft, and the tail end of the connecting rod is embedded in the groove. The groove is elliptical or an elliptical arc.

2. The tool for clamping and installing a clamp ammeter according to claim 1, wherein: The upper half of the swing rod has an outward swinging arc.

3. The tool for clamping and installing a clamp ammeter according to claim 1, wherein: The top end of the swing rod is provided with a rotatable shaft head. When driven, the top end of the swing rod rolls relative to the pressure plate on the second clamp head.

4. The tool for clamping and installing a clamp ammeter according to claim 1, wherein: A mounting seat is also installed on the mounting assembly. The mounting seat is a knob mounting seat, and corresponding cables can be connected through the mounting seat according to actual needs.

5. The tool for clamping and installing a clamp ammeter according to claim 1, wherein: The grooved runner is a metal part that has been carburized; The end of the connecting rod on the rocker arm is also provided with a rotatable shaft head.

6. The tool for clamping and installing a clamp ammeter according to claim 1, wherein: The outer edge of the grooved rotating wheel is provided with anti-skid grooves, and an opening corresponding to the grooved rotating wheel is provided at the mounting assembly.

7. A tool for clamping and installing a clamp ammeter, characterized by: The robot comprises a docking assembly, a pendulum, a mounting assembly, and a current clamp. The mounting assembly is the basis, with the docking assembly installed at the bottom of the mounting assembly, and the docking assembly is dynamically connected to the robot. A pendulum is provided on one side of the mounting assembly, and the docking assembly and the pendulum are dynamically connected. The current clamp is movably installed on the upper part of the mounting assembly, and the head end of the pendulum can elastically press the tail end of the current clamp to control the opening and closing state of the current clamp. The mounting assembly has a hollow structure, and the docking assembly has a cylindrical connecting sleeve, which is fixedly connected to the tail end of the mounting assembly by screws or buckles. A rotatable power shaft is provided in the connecting sleeve of the docking assembly, and the upper end of the power shaft has a power drive head. A pendulum rod fixing seat is provided in the middle of the side of the mounting assembly, and the top end of the pendulum rod fixing seat is movably connected to the pendulum rod via a rotating shaft. The middle end of the pendulum rod is rotatably connected to the pendulum rod fixing seat, and the head end of the pendulum rod is closely attached to the tail end of the current clamp. The current clamp has two interlocking clamp heads, wherein the first clamp head of one clamp head is fixedly connected to one side of the top of the mounting assembly, and the other clamp head is movably mounted on the other side of the top of the mounting assembly via a rotating shaft. A torsion spring is mounted on the rotating shaft of the movably mounted second clamp head to ensure that the two clamp heads are in a closed state when not in use; a fan-shaped pressure plate is provided below the rotating shaft of the second clamp head, and the top end of the swing rod cooperates with the pressure plate. When the top end of the swing rod is squeezed inward, the pressure plate drives the second end of the clamp head to rotate outward, and the current clamp is in an open state. The power driving head is an elliptical cam, and the end of the rocker arm is movably connected to a connecting rod. The tail end of the connecting rod is pressed against the side of the elliptical cam. The rotation of the elliptical cam controls the rocker arm to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp.

8. The tool for clamping and installing a clamp ammeter according to claim 7, wherein: The upper half of the swing rod has an outward swinging arc.

9. The tool for clamping and installing a clamp ammeter according to claim 7, wherein: The top end of the swing rod is provided with a rotatable shaft head. When driven, the top end of the swing rod rolls relative to the pressure plate on the second clamp head.

10. The tool for clamping and installing a clamp ammeter according to claim 7, wherein: A mounting seat is also installed on the mounting assembly. The mounting seat is a knob mounting seat, and corresponding cables can be connected through the mounting seat according to actual needs.

11. The tool for clamping and installing a clamp ammeter according to claim 7, wherein: The elliptical cam is a carburized metal part, and the end of the connecting rod is also provided with a rotatable shaft head.

12. The method for using the tool for clamping and installing a clamp ammeter according to claim 1 or 7, wherein: When in use, the power drive head is driven to rotate by the rotation of the power shaft, and then the pendulum arm is driven to swing within a predetermined range through the connecting rod. When the pendulum arm swings, its upper part presses the pressure plate of the clamp head 2 and cooperates with the torsion spring on the clamp head 2 to accurately control the opening and closing state of the current clamp.

Images