Tool for clamping and installing clip-on ammeter and operation method thereof

Abstract

The invention relates to a tool for clamping and installing a clip-on ammeter and an operation method of the tool. The device comprises a butt joint assembly, a swing rod, a mounting assembly and a current clamp. Wherein on the basis of the mounting assembly, the butt joint assembly is mounted at the bottom of the mounting assembly, and the butt joint assembly is in power connection with the robot; a swing rod is arranged on one side of the installation assembly, the butt joint assembly is in power connection with the swing rod, a current clamp is movably installed on the upper portion 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 is of a hollow structure, the butt joint assembly is provided with a cylindrical connecting sleeve, the connecting sleeve is fixedly connected to the tail end of the installation assembly, a power shaft is arranged in the connecting sleeve of the butt joint assembly, and a power driving head is arranged at the upper end of the power shaft. A swing rod fixing base is arranged in the middle of the side face of the installation assembly, the top end of the swing rod fixing base is movably connected with a swing rod through a rotating shaft, the tail end of the swing rod is in power connection with the swing rod fixing base, and the head end of the swing rod is tightly attached 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 insulating shoes and carries a tester of the corresponding voltage level to climb the pole, and another person is equipped for supervision; after climbing the pole, the operator operates the tester to gradually approach the main line to be tested until the neon tube lights up, and then withdraws immediately. At this time, it is also necessary to avoid touching the equipment to generate induced voltage. During the entire operation, a variety of insulating protective equipment and insulating tools are required, and manual operation is required, which has problems such as cumbersome operation and high safety risks. Therefore, it is necessary to use automated equipment to replace manual operation. In order to adapt to the development trend of technology, it is necessary to use corresponding robots for operation; however, there is no dedicated end-effector device designed for high-voltage line power testing in the existing robots. Therefore, in order to improve the operation efficiency and ensure the safety of the operator, it is necessary to develop a robot end-effector tool, and then the robot completes the task of high-voltage line power testing. 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 pole climbing, and has good use and promotion effects.

[0005] A tool for clamping and installing a clamp-on ammeter comprises a docking assembly, a swing rod, a mounting assembly and a current clamp; wherein the mounting assembly is based on the docking assembly, the docking assembly is installed at the bottom of the mounting assembly, and the docking assembly is dynamically connected to a robot; a swing rod is provided on one side of the mounting assembly, the docking assembly is dynamically connected to the swing rod, a current clamp is movably installed on the upper part of the mounting assembly, and the head end of the swing rod 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 a power driving head is provided at the upper end of the power shaft. A rocker arm fixing seat is provided in the middle of the side surface of the mounting assembly, and a rocker arm is movably connected to the top end of the rocker arm fixing seat 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 closely attached to the tail end of the current clamp.

[0007] The current clamp has two clamp heads that interlock with each other, wherein the clamp head one of one lobe is fixedly connected to one side of the top of the mounting assembly, and the other lobe is movably mounted on the other side of the top of the mounting assembly through a rotating shaft, and a torsion spring is installed on the rotating shaft of the movably mounted clamp head two, which is used to ensure that the two clamp heads are in a closed state when not in use; the clamp head two is provided with a fan-shaped pressure plate below the rotating shaft, 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 end of the clamp head two 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 swing rod has a rotatable shaft head. When driven, the top of the swing rod 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 the service life.

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

[0011] The power drive head is a grooved wheel, the upper surface of which has an inwardly concave groove, and 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 rotating wheel 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 swing 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 rotating wheel has anti-slip grooves, and a corresponding opening is provided at the mounting assembly to prevent the operator from manually turning the grooved rotating 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 driving head is an elliptical cam, 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 connection 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 degree of 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 rod is driven to swing within a predetermined range through the connecting rod. When the pendulum rod swings, its upper part presses the pressure plate of the second clamp head and cooperates with the torsion spring on the second clamp head 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: 1. Wireless tools are suitable for live operations of robots.

[0021] 2. The wireless electric test tool simply realizes the opening and closing action of the current clamp through the form of a cam connecting rod. The whole operation process is simple, safe and efficient.

[0022] Before the wireless electrical test tool is used, rotate the drive shaft so that the transmission pin moves inward and the swing arm swings outward. Then insert the current clamp into the installation frame, tighten the knobs on both sides so that its head presses the current clamp inward, and press the mounting seat at the same time. At this time, the installation of the current clamp is completed. When the wireless electrical test tool is used, the insulated boom truck sends the live working robot to the working area. A mechanical arm carries the working tool close to the live main line. The power at the end of the mechanical arm causes the drive shaft to rotate clockwise, and the pressing bearing presses the current clamp button through the grooved cam, swing arm and other structures, and the current clamp opens. Then move the opening to the inside of the wire and close the opening. Observe the indicator light of the current clamp through the camera on the mechanical arm to complete the electrical test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of a current clamp installed in a wireless electrical testing tool according to an embodiment of the present invention; Figure 2 is a schematic diagram of a current clamp in an example of the present invention; Figure 3 It is an overall schematic diagram of a wireless electrical testing tool in an embodiment of the present invention; Figure 4 It is a cross-sectional schematic diagram of an in-line electrical testing tool according to an embodiment of the present invention; Figure 5Schematic 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 rotating wheel); Figure 6 Schematic diagram of a top view of a connecting rod and a power driving head in an embodiment of the present invention (the power driving head is an elliptical cam). DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] A tool for clamping and installing a clamp-on ammeter comprises a docking component 1, a swing rod 2, a mounting component 3 and a current clamp 4; wherein the mounting component 3 is based, the docking component 1 is installed at the bottom of the mounting component 3, and the docking component 1 is dynamically connected to a robot; a swing rod 2 is provided on one side of the mounting component 3, the docking component 1 is dynamically connected to the swing rod 2, and the current clamp 4 is movably installed on the upper part of the mounting component 3, and the head end of the swing rod 2 can elastically press the tail end of the current clamp 4, thereby controlling the opening and closing state of the current clamp 4.

[0026] The installation component 3 has a hollow structure, and the docking component 1 has a cylindrical connecting sleeve 1-1, which is fixedly connected to the tail end of the installation component 3 by screws or buckles. A rotatable power shaft 1-2 is provided in the connecting sleeve 1-1 of the docking component 1, and the upper end of the power shaft 1-2 has a power driving head 1-3; a rocker arm fixing seat 3-1 is provided in the middle of the side of the installation component 3, and the top 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.

[0027] The current clamp 4 has two clamp heads that interlock with each other, wherein the clamp head 1 4-1 of one lobe is fixedly connected to one side of the top of the mounting component 3, and the other lobe is movably mounted on the other side of the top of the mounting component 3 through a rotating shaft, and 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.

[0028] 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 .

[0029] 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 4-2, which reduces friction resistance, thereby reducing the applied force and the degree of wear on the side of the pressure plate 4-2-1, thereby increasing the service life.

[0030] A mounting seat 3-2 is also installed on the mounting component 3. The mounting seat 3-2 is a knob mounting seat, and corresponding cables can be connected according to actual needs through the mounting seat 3-2.

[0031] The power drive head 1-3 is a grooved wheel, and the upper surface of the grooved wheel has a 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, which drives the pendulum rod 2 to swing up and down with a certain amplitude, thereby controlling the opening and closing of the current clamp 4.

[0032] The grooved rotating wheel is a metal part that has been carburized to increase the wear resistance of the part.

[0033] Furthermore, a rotatable shaft head is also provided at the end of the connecting rod 5 on the rocker arm 2 to reduce friction resistance, thereby reducing the degree of wear of the groove 1-3-1 and the connecting rod 5, thereby increasing the service life.

[0034] 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.

[0035] 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.

[0036] Furthermore, a limit block is provided on the mounting assembly 3 to limit the connection rod 5 on the swing rod 2 within a certain range to prevent a large swing.

[0037] 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 degree of wear of the elliptical cam and the connecting rod 5, and thus increase the service life.

[0038] The power shaft 1-2 is controlled by a stepper motor or a servo motor.

[0039] 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 2 is driven to swing within a predetermined range through the connecting rod 5. When the pendulum 2 swings, its upper part presses the pressure plate 4-2-1 of the clamp head 4-2 and cooperates with the torsion spring on the clamp head 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 in that: The robot comprises a docking assembly, a swing rod, a mounting assembly and a current clamp; wherein the mounting assembly is based on the docking assembly, the docking assembly is installed at the bottom of the mounting assembly, and the docking assembly is dynamically connected to the robot; a swing rod is arranged on one side of the mounting assembly, the docking assembly is dynamically connected to the swing rod, and a current clamp is movably installed on the upper part of the mounting assembly, and the head end of the swing rod can elastically press the tail end of the current clamp, thereby controlling the opening and closing state of the current clamp; The mounting 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 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 driving head; a swing rod fixing seat is provided in the middle of the side of the mounting assembly, the top end of the swing rod fixing seat is movably connected to the swing rod through a rotating shaft, the tail end of the swing rod is dynamically connected to the swing rod fixing seat, and the head end of the swing rod is closely attached to the tail end of the current clamp; The current clamp has two clamp heads that interlock with each other, wherein the clamp head one of one lobe is fixedly connected to one side of the top of the mounting assembly, and the other lobe is movably mounted on the other side of the top of the mounting assembly through a rotating shaft, and a torsion spring is installed on the rotating shaft of the movably mounted clamp head two, which is used to ensure that the two clamp heads are in a closed state when not in use; the clamp head two is provided with a fan-shaped pressure plate below the rotating shaft, 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 end of the clamp head two to rotate outward, and the current clamp is in an open state.

2. The tool for clamping and installing a clamp ammeter according to claim 1, characterized in that: 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, characterized in that: The top end of the swing rod is provided with a rotatable shaft head. When driven, the top end of the swing rod performs rolling motion relative to the pressure plate on the second clamp head.

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

5. The tool for clamping and installing a clamp ammeter according to claim 1, characterized in that: The power driving head is a grooved rotating wheel, the upper surface of which has a concave groove, the swing 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.

6. The tool for clamping and installing a clamp ammeter according to claim 5, characterized in that: The grooved rotating wheel is a metal part that has been carburized; The end of the connecting rod on the swing rod is also provided with a rotatable shaft head.

7. The tool for clamping and installing a clamp ammeter according to claim 5, characterized in that: The outer edge of the grooved rotating wheel has anti-skid grooves, and a corresponding opening is arranged at the mounting assembly.

8. The tool for clamping and installing a clamp ammeter according to claim 1, characterized in that: The power driving head is an elliptical cam, the end of the swing rod 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 swing rod is controlled to swing up and down with a certain amplitude through the rotation of the elliptical cam, thereby controlling the opening and closing of the current clamp.

9. The tool for clamping and installing a clamp ammeter according to claim 8, characterized in that: The elliptical cam is a carburized metal part, and a rotatable shaft head is also arranged at the end of the connecting rod.

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

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