Screwing operation tool

Abstract

The utility model provides a screwing operation tool, which belongs to the technical field of electric power overhaul, and comprises a tool shelf, a knob operation rod and an unlocking mechanism, and the tool shelf is butted with a mechanical arm of an inspection robot; the knob operating rod is fixed on the tool shelf; a screwing clamping jaw for screwing the knob is arranged at the front end of the knob operating rod; the unlocking mechanism comprises an electric push rod with a telescopic driving function and an unlocking sleeve arranged at the front end of the electric push rod; the electric push rod is arranged in the hollow cavity of the knob operating rod, and the electric push rod pushes out or retracts the unlocking sleeve into the hollow cavity and rotates the unlocking sleeve through the mechanical arm to unlock; and the unlocking sleeve retracts or extends out of the hollow cavity, so that the rotary knob is screwed by the screwing clamping jaw or the unlocking sleeve is inserted into the lock hole for unlocking. The lock has the functions of unlocking and screwing the knob, operation tools do not need to be replaced frequently, the operation process is simplified, and the operation and maintenance time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric power maintenance, and in particular relates to a screwing operation tool. Background Art

[0002] High and low voltage switchgear is one of the main equipment in the distribution room. Daily operation and maintenance mainly includes inspection of the working status of the switchgear, opening and closing operations of circuit breakers, and rocking in and out of the switchgear drawers. The maintenance of trolley-type circuit breakers requires pulling the trolley circuit breaker out of the high-voltage switchgear.

[0003] During daily operation and maintenance, although semi-automatic inspection robots are used to assist in the work, due to the large number of control buttons of various types or specifications on the switch cabinet, the cabinet door locks need to be opened. Currently, a variety of operating tools need to be configured, and the manipulator needs to frequently change to pick up different operating tools. This not only leads to an increase in operation and maintenance time, and cumbersome and inconvenient operations, but also requires the robot to carry and configure a variety of operating tools. Due to the limitations of the robot's overall carrying capacity, it cannot meet all the requirements. It does not have the function of fully automated operation and requires manual intervention. In addition, the configuration of multiple operating tools also increases the production cost. Utility Model Content

[0004] The embodiment of the utility model provides a screwing operation tool that integrates the functions of two operation tools, solving the problems of long operation and maintenance time, inconvenience in use and high production cost caused by the large variety of operation tool configurations and frequent replacement operations.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a screwing operation tool, including: a tool tray, a knob operating rod and an unlocking mechanism, the tool tray is used to dock with the mechanical arm of the inspection robot; the knob operating rod is fixed on the tool tray; the front end of the knob operating rod is provided with a screwing claw for screwing the knob, and the knob operating rod has a hollow cavity; the unlocking mechanism includes an electric push rod with a telescopic drive, and an unlocking sleeve arranged at the front end of the electric push rod; the electric push rod is arranged in the hollow cavity of the knob operating rod, and the electric push rod pushes out or retracts the unlocking sleeve into the hollow cavity, and rotates the unlocking sleeve to unlock by the mechanical arm; the unlocking sleeve is retracted or extended into the hollow cavity, so that the screwing claw screws the knob or the unlocking sleeve is inserted into the lock hole to unlock.

[0006] In one feasible manner, the knob operating rod includes a sleeve and an end cover fixed to the front end of the sleeve, the center hole of the sleeve is the hollow cavity, and the end cover is provided with a through hole for the push rod and the unlocking sleeve to pass through; the screwing claw is fixed on the end cover.

[0007] In one achievable manner, the screwing jaw is fixed to the end cover by bolts, or the screwing jaw is integrally formed on the end cover.

[0008] In one achievable manner, the screwing clamp includes two symmetrically arranged clamp bodies, with a space being left between the clamp bodies to avoid the unlocking sleeve.

[0009] In one feasible manner, the unlocking sleeve has a fixed cylinder connected to the electric push rod and a rotating head for twisting to unlock, and the inner wall of the fixed cylinder is provided with a limiting cam that engages with the tooth groove on the surface of the electric push rod; the rotating head extends into the lock hole to be unlocked, and its shape matches the lock hole to be unlocked.

[0010] In one practicable manner, a first limiting disc for limiting the extension length of the push rod is provided in the knob operating rod, and a second limiting disc axially abutting against the first limiting disc is provided on the electric push rod.

[0011] In one feasible manner, a knob adapter plate is further included, the rear end of the knob operating rod is fixed to the knob adapter plate, and the knob adapter plate is fixed to the tool tray.

[0012] In one practicable manner, a limiting groove is provided in the middle of the knob adapter plate, and a stop that can be inserted into the limiting groove is provided at the rear end of the knob operating rod.

[0013] In one feasible manner, the electric push rod is fixed in the middle of the knob adapter plate.

[0014] The screw operating tool provided by the utility model has the following advantages compared with the prior art: it integrates the functions of unlocking and screwing the knob, specifically, the knob operating rod for screwing the switch knob and the unlocking sleeve for opening the cabinet door are integrated into one operating tool, and the mechanical arm of the inspection robot is docked on the tool tray of the operating tool, which can perform both the screwing and opening operations of the knob on the switch cabinet and the unlocking operations on the switch cabinet, and does not require frequent replacement of operating tools, thereby simplifying the operation process and shortening the operation and maintenance time; at the same time, it also reduces the types of operating tools carried by the inspection robot and reduces the production cost; since the types of operating tools carried by the inspection robot are reduced, the size of the inspection robot can also be reduced, thereby reducing the production cost of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a screwing operation tool provided in an embodiment of the present utility model;

[0016] Figure 2 A schematic diagram of the main structure of the screwing operation tool provided by an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the three-dimensional structure of the knob operating rod provided in an embodiment of the utility model;

[0018] Figure 4 A schematic diagram of the main structure of the knob operating lever provided in an embodiment of the utility model;

[0019] Figure 5 For the Figure 4 Cross-sectional structural diagram along line AA;

[0020] Figure 6 Schematic diagram of the three-dimensional structure of the unlocking sleeve provided in the embodiment of the utility model Figure 1 ;

[0021] Figure 7 Schematic diagram of the three-dimensional structure of the unlocking sleeve provided in the embodiment of the utility model Figure 2 ;

[0022] Figure 8 A schematic diagram of the three-dimensional structure of the tool tray and the knob adapter plate provided in an embodiment of the utility model;

[0023] Description of reference numerals:

[0024] 1. Tool tray; 2. Knob adapter plate; 21. Limit groove; 3. Knob operating lever; 31. Sleeve; 32. End cover; 33. Twist clamping jaw; 34. First limit disc; 35. Hollow cavity; 36. Stopper; 4. Unlocking mechanism; 41. Electric push rod; 42. Unlocking sleeve; 43. Limiting cam; 44. Fixing cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Please also refer to Figures 1 to 8The screwing operation tool provided by the present invention is now described. The screwing operation tool includes a tool tray 1, a knob operating rod 3, and an unlocking mechanism 4. The tool tray 1 is used for docking with the robotic arm of the inspection robot. The knob operating rod 3 is fixed to the tool tray 1. The front end of the knob operating rod 3 is provided with a screwing clamp 33 for screwing the knob. The knob operating rod 3 has a hollow cavity 35. The unlocking mechanism 4 includes an electric push rod 41 with a telescopic drive and an unlocking sleeve 42 provided at the front end of the electric push rod 41. The electric push rod 41 is provided in the hollow cavity 35 of the knob operating rod 3. The electric push rod 41 unlocks the door by pushing out or retracting the unlocking sleeve 42 into the hollow cavity 35 and rotating the unlocking sleeve 42 through the robotic arm. The unlocking sleeve 42 is retracted or extended into the hollow cavity 35, so that the screwing clamp 33 screws the knob or the unlocking sleeve 42 is inserted into the keyhole to unlock the door.

[0027] The screwing operating tool provided by the present invention has the following beneficial effects compared with the prior art: the knob operating rod 3 for screwing the switch knob and the unlocking sleeve 42 for opening the cabinet door are integrated into one operating tool, and the mechanical arm of the inspection robot is docked on the tool tray 1 of the operating tool, which can perform both the screwing and opening operations of the knob on the switch cabinet and the rotary unlocking operations on the switch cabinet, without the need to frequently replace the operating tools, simplifying the operation process and shortening the operation and maintenance time; at the same time, it also reduces the types of operating tools carried by the inspection robot and reduces the production cost; since the types of operating tools carried by the inspection robot are reduced, the size of the inspection robot can also be reduced, thereby reducing the production cost of the entire machine.

[0028] The screwing tool provided by this utility model is used in conjunction with an inspection robot. The robot's mechanical arm automatically docks with the tool and automatically performs knob and unlock operations, enabling automated operation and maintenance of switchgear and equipment in distribution rooms. The robot is equipped with a bracket for placing the screwing tool, facilitating docking and gripping by the mechanical arm.

[0029] The specific working process of the screwing operation tool provided by the utility model is as follows:

[0030] There are many knobs on the switch cabinet. When a knob needs to be turned to activate a certain electrical function, the inspection robot's robotic arm first docks with the tool tray 1, then retracts the unlocking sleeve 42 into the hollow cavity 35 of the knob operating rod 3. Then, the tightening claw 33 is aligned with the knob. By rotating the robotic arm and clamping the knob with the tightening claw 33, the knob can be turned to the open or closed state. At this time, the unlocking sleeve 42 is pushed out beyond the tightening claw 33, and the robotic arm aligns the unlocking sleeve 42 with the lock hole on the switch cabinet and inserts it into the lock hole. The unlocking sleeve 42 is then rotated by the robotic arm to open the lock. Of course, there is no particular order for unlocking and turning the knob. The unlocking and opening knob actions can be adjusted at any time according to the needs of the operation and maintenance procedures.

[0031] In some embodiments, see Figures 1 to 5 As shown, the knob operating rod 3 includes a sleeve 31 and an end cap 32 fixed to the front end of the sleeve 31. The central hole of the sleeve 31 forms a hollow cavity 35. The end cap 32 is provided with through holes for the electric push rod 41 and the unlocking sleeve 42 to pass through. The screw clamp 33 is fixed to the end cap 32. The knob operating rod 3 provides space for the installation of the unlocking mechanism 4. In other words, the unlocking mechanism 4 is integrated into the hollow cavity 35 of the knob operating rod 3. The end cap 32 also facilitates the installation and inspection of the unlocking mechanism 4.

[0032] In some embodiments, see Figures 1 to 5 As shown, the screwing jaw 33 is fixed to the end cover 32 by bolts, or the screwing jaw 33 is integrally formed on the end cover 32. The end cover 32 is provided with a countersunk hole, and the nut of the bolt can be hidden in the countersunk hole, making the front end surface of the end cover 32 smooth, preventing the bolt from interfering with the operation or the nut of the bolt from scratching the components on the switch cabinet.

[0033] In some embodiments, see Figures 1 to 5 As shown, the screwing jaw 33 includes two symmetrically arranged jaw bodies, with a space between the jaw bodies to avoid the unlocking sleeve 42. The two jaw bodies and the knob form an intersection, that is, the knob can be screwed by rotation.

[0034] In some embodiments, see Figures 6 and 7 As shown, the unlocking sleeve 42 comprises a fixed cylinder 44 connected to the electric push rod 41 and a rotating head for unlocking. The inner wall of the fixed cylinder 44 is provided with a retaining key 43 that engages with the tooth grooves on the surface of the electric push rod 41. The rotating head extends into the keyhole to be unlocked, and its shape matches the keyhole to be unlocked. The rotating head can be a straight line, a cross, a splined sleeve, or other shapes that match the keyhole. The specifications and shapes of the unlocking sleeve 42 are interchangeable to accommodate more keyholes, without having to replace the knob operating rod 3 and the rotating and telescopic unit inside it.

[0035] In some embodiments, see Figure 5 As shown, a first limiting disc 34 is provided within the knob operating rod 3 to limit the extension length of the electric push rod 41, and a second limiting disc is provided on the electric push rod 41 to axially abut against the first limiting disc 34. This limiting structure mechanically limits the extension length of the electric push rod 41, thereby preventing the electric push rod 41 from losing control and extending too far, which would also cause instability in the operation of the unlocking sleeve 42.

[0036] See also Figures 1 to 2 、 Figure 8As shown, the screwing operation tool provided by the present invention also includes a knob adapter plate 2, the rear end of the knob operating rod 3 is fixed to the knob adapter plate 2, and the knob adapter plate 2 is fixed to the tool tray 1. The tool tray 1 of the present application is a universal component, which is convenient for docking with the mechanical arm of the inspection robot, and then provides a mounting position for the knob operating rod 3 through the knob adapter plate 2. This design facilitates the installation of the unlocking mechanism 4 on the one hand, and facilitates the disassembly and assembly of various components and repair after failure on the other hand.

[0037] Among them, the knob adapter plate 2 is fixed to the tool tray 1 by four bolts, the knob operating rod 3 is fixed to the knob adapter plate 2 by screws, the end cover 32 is fixed to the front end of the knob operating rod 3 by bolts, and the rotating and telescopic unit is fixed to the knob adapter plate 2; this assembly structure is convenient for repairing each component after failure, and the assembly is also simple and convenient.

[0038] The installation example is as follows: first fix the electric push rod to the knob adapter plate 2, then fix the sleeve 31 to the knob adapter plate 2, then fix the end cover 32 to the sleeve 31, and finally fix the knob adapter plate 2 to the tool tray 1; among them, the end cover 32 can also be installed last.

[0039] In some embodiments, see Figures 1 to 5 、 Figure 8 As shown, a limiting groove 21 is provided in the middle of the knob adapter plate 2, and a stop 36 is provided at the rear end of the knob operating rod 3 to be inserted into the limiting groove 21. The limiting groove 21 ensures that the knob operating rod 3 is reliably positioned, thereby improving the firmness of the knob operating rod 3 and the accuracy of its position.

[0040] In some embodiments, see Figure 1 and Figure 8 , the electric push rod is fixed in the middle of the knob adapter plate 2, specifically fixed in the limiting groove 21. Among them, the knob adapter plate 2 is provided with a mounting bracket for mounting the electric push rod.

[0041] The electric push rod 41 is a linear drive with telescopic function, and the linear drive may also include a worm gear linear drive mechanism, a cylinder, etc.

[0042] A rotating and telescopic unit with both rotational and telescopic functions may also be provided within the knob operating rod 3. The rotating and telescopic unit comprises a rotating subunit and a telescopic subunit. The rotating subunit may be a rotary motor, while the telescopic subunit may be a linear actuator. An embodiment of the invention is as follows: the rotary motor is fixed to the knob adapter plate 2, and an electric push rod 41 is fixed to the main shaft of the rotary motor and rotates with the main shaft. The push rod of the electric push rod 41 can be extended or retracted within the knob operating rod 3.

[0043] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screwing operation tool, characterized in that: include: A tool tray (1) for docking the robotic arm of the inspection robot; A knob operating rod (3) is fixed on the tool tray (1); a screwing clamp (33) for screwing a knob is provided at the front end of the knob operating rod (3); and the knob operating rod (3) has a hollow cavity (35); and The unlocking mechanism (4) comprises an electric push rod (41) with a telescopic drive and an unlocking sleeve (42) arranged at the front end of the electric push rod (41); the electric push rod (41) is arranged in the hollow cavity (35) of the knob operating rod (3); the electric push rod (41) pushes out or retracts the unlocking sleeve (42) into the hollow cavity (35), and rotates the unlocking sleeve (42) through a mechanical arm to unlock; the unlocking sleeve (42) is retracted or extended into the hollow cavity (35), so that the screwing claw (33) screws the knob or the unlocking sleeve (42) is inserted into the lock hole to unlock.

2. The screwing operation tool according to claim 1, characterized in that The knob operating rod (3) comprises a sleeve (31) and an end cover (32) fixed to the front end of the sleeve (31); the central hole of the sleeve (31) is the hollow cavity (35); the end cover (32) is provided with a through hole for the push rod of the electric push rod (41) and the unlocking sleeve (42) to pass through; the screwing claw (33) is fixed on the end cover (32).

3. The screwing operation tool according to claim 2, characterized in that: The screwing clamp (33) is fixed to the end cover (32) by means of bolts, or the screwing clamp (33) is integrally formed on the end cover (32).

4. The screwing operation tool according to claim 1, wherein: The screwing clamp (33) comprises two symmetrically arranged clamp bodies, with a space being left between the clamp bodies to avoid the unlocking sleeve (42).

5. The screwing operation tool according to claim 1, characterized in that: The unlocking sleeve (42) comprises a fixed cylinder connected to the electric push rod (41) and a rotating head for twisting to unlock, and the inner wall of the fixed cylinder is provided with a limiting convex key (43) that engages with the tooth groove on the push rod surface of the electric push rod (41); the rotating head extends into the lock hole to be unlocked, and its shape matches the lock hole to be unlocked.

6. The screwing operation tool according to claim 1, characterized in that: A first limiting disc (34) for limiting the extension length of the electric push rod (41) is provided in the knob operating rod (3), and a second limiting disc axially abutting against the first limiting disc (34) is provided on the push rod of the electric push rod (41).

7. The screwing operation tool according to claim 1, characterized in that: It also includes a knob adapter plate (2), the rear end of the knob operating rod (3) is fixed on the knob adapter plate (2), and the knob adapter plate (2) is fixed on the tool tray (1).

8. The screwing operation tool according to claim 7, characterized in that: A limiting groove (21) is provided in the middle of the knob adapter plate (2), and a stop (36) capable of being inserted into the limiting groove (21) is provided at the rear end of the knob operating rod (3).

9. The screwing operation tool according to claim 7, characterized in that: The electric push rod is fixed in the middle of the knob adapter plate (2).

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