Positioning device for pre-tightening of a moving conductor and an insulating pot

Abstract

The application discloses a positioning device for pre-tightening of a moving conductor and an insulating pot. The positioning device comprises a rack provided with a support plate for placing the insulating pot; a mechanical arm for grabbing the insulating pot and the moving conductor to a corresponding predetermined position; a first positioning mechanism arranged on the rack and used for positioning the insulating pot on the support plate; a second positioning mechanism arranged on the rack and used for positioning the moving conductor on the insulating pot; and a driving mechanism connected with the second positioning mechanism and used for driving the second positioning mechanism to switch between a first position and a second position. When the second positioning mechanism is located at the first position, it does not coincide with the support plate in the vertical direction so that the mechanical arm can place the insulating pot on the support plate. When the second positioning mechanism is located at the second position, it is located directly above the support plate and can clamp and position the moving conductor on the insulating pot. The application can improve the positioning reliability and assembly efficiency.

Description

Technical Field

[0001] This application relates to the field of disconnector manufacturing technology, specifically to a positioning device for pre-tightening the moving conductor and the insulating basin. Background Technology

[0002] In the manufacturing process of disconnect switches, the moving conductor is fixedly installed on the insulating plate on the moving side, and the stationary conductor is fixedly installed on the insulating plate on the stationary side. When aligning and assembling the moving and stationary conductors, angular positioning is generally achieved using the insulating plates of both. Therefore, the accuracy of the relative positions of the moving conductor and the insulating plate during assembly, as well as the accuracy of the relative positions of the stationary conductor and the insulating plate during assembly, has a significant impact on the high-precision alignment of the mating holes after assembly. Therefore, in existing technology, the moving conductor is generally pre-tightened onto the insulating plate (pre-tightening refers to using screws to partially tighten the moving conductor onto the insulating plate), and then the pre-tightened moving conductor and insulating plate are transferred to a station where they can be fully and precisely tightened for final assembly.

[0003] Currently, the pre-tightening process between the moving conductor and the insulating basin is typically performed manually by two operators. One operator holds the moving conductor firmly against the insulating basin, while the other operator pre-tightens the screws to both the moving conductor and the insulating basin. This manual assembly method is inefficient, and the method of holding the conductor firmly by hand makes it difficult to ensure that the moving conductor does not wobble relative to the insulating basin during the pre-tightening process, which can negatively impact the subsequent fully tightened process. Utility Model Content

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a positioning device for pre-tightening a moving conductor and an insulating basin.

[0005] To achieve the above objectives, this application adopts the following technical solution: a positioning device for pre-tightening a moving conductor and an insulating basin, the positioning device comprising:

[0006] The frame is equipped with a support plate for placing the insulating basin;

[0007] A robotic arm used to grasp an insulating basin and a moving conductor to their respective predetermined positions;

[0008] A first positioning mechanism is disposed on the frame and is used to position the insulating basin on the support plate;

[0009] A second positioning mechanism, disposed on the frame and used to position the moving conductor in the insulating basin; and,

[0010] A drive mechanism, which is connected to a second positioning mechanism and is used to drive the second positioning mechanism to switch between a first position and a second position;

[0011] When the second positioning mechanism is in the first position, it does not coincide with the support plate in the vertical direction so that the robotic arm can place the insulating basin on the support plate. When the second positioning mechanism is in the second position, it is located directly above the support plate and can clamp and position the moving conductor in the insulating basin.

[0012] The application of this application has the following beneficial effects: A robotic arm grasps and moves the insulating basin and the moving conductor; a first positioning mechanism and a second positioning mechanism respectively position the insulating basin and the moving conductor; and automated positioning of the insulating basin and the moving conductor is achieved during the pre-tightening operation of the moving conductor and the insulating basin, improving positioning reliability and assembly efficiency. By setting a drive mechanism to switch the second positioning mechanism between the first and second positions, the smooth placement of the insulating basin by the robotic arm can be ensured.

[0013] Optionally, the first positioning mechanism includes a first linear driver disposed on the frame and a pressure plate disposed on the output end of the first linear driver. The pressure plate is configured to move up and down under the drive of the first linear driver, and the first positioning mechanism presses and positions the insulating basin on the support plate through the pressure plate.

[0014] Optionally, the first positioning mechanism is provided in two sets, and the two sets of first positioning mechanisms are evenly distributed around the insulating basin, and the pressure plates in the two sets of first positioning mechanisms press against the edge of the insulating basin.

[0015] Optionally, the second positioning mechanism is a pneumatic gripper or an electric gripper. The second positioning mechanism includes a power unit and two sets of gripper bodies. The power unit is used to drive the two sets of gripper bodies to switch between a clamping state and an open state through relative movement. When the second positioning mechanism is in the second position, the two sets of gripper bodies are configured to allow the moving conductor to be placed between the two sets of gripper bodies in the open state and to clamp and position the moving conductor in the insulating basin in the clamping state.

[0016] Optionally, the drive mechanism includes:

[0017] The active rack is slidably mounted on the frame along the vertical direction;

[0018] The second linear actuator is connected to the active rack and is used to drive the active rack to slide back and forth along the frame;

[0019] A transmission gear that meshes with the drive rack; and,

[0020] A mounting bracket is disposed on the transmission gear;

[0021] The second positioning mechanism is disposed on the mounting bracket.

[0022] Optionally, the drive mechanism further includes a detection sensor mounted on the frame, the detection sensor being used to acquire the travel distance of the drive rack.

[0023] Optionally, the positioning device further includes:

[0024] A mounting plate, which is fixedly installed on the frame;

[0025] A connecting bracket, which is fixedly mounted on the fixing plate; and,

[0026] A rotating shaft is disposed on the connecting frame;

[0027] The active rack is slidably mounted on the fixed plate, and the transmission gear is rotatably mounted relative to the connecting frame via the rotating shaft.

[0028] Optionally, the positioning device further includes a slide rail structure, which includes a slider with a groove and a linear guide rail slidably disposed in the groove. One of the slider and the linear guide rail is fixedly disposed on a fixed plate, and the other is fixedly disposed on a drive rack.

[0029] Optionally, the active rack is provided in two sets and the two sets of active racks are arranged in parallel and spaced apart. The transmission gear is provided in two sets and the two sets of transmission gears are arranged corresponding to the two sets of active racks. The drive mechanism further includes a first fixing member and a second fixing member. The first fixing member is fixedly disposed at the upper end of the two sets of active racks, and the second fixing member is fixedly disposed at the lower end of the two sets of active racks. The output end of the second linear driver is connected to the first fixing member or the second fixing member.

[0030] Optionally, the connecting frame has a first limiting part and a second limiting part. The first limiting part is used to cooperate with the first fixing member to limit the downward movement of the active rack, and the second limiting part is used to cooperate with the second fixing member to limit the upward movement of the active rack.

[0031] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0032] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0033] Figure 1 A schematic diagram of a positioning device for pre-tightening a moving conductor and an insulating basin provided in an embodiment of this application;

[0034] Figure 2 This is a structural diagram showing the insulating basin positioned on the frame.

[0035] Figure 3 A schematic diagram of the structure after the moving conductor is pre-tightened to the insulating basin;

[0036] Figure 4 This is a schematic diagram of the second positioning mechanism;

[0037] Figure 5 This is a structural diagram of the drive mechanism and part of the frame;

[0038] Figure 6 Explosion of the drive mechanism and part of the frame Figure 1 ;

[0039] Figure 7 Explosion of the drive mechanism and part of the frame Figure 2 .

[0040] The components include: 1. Frame; 10. Fixing plate; 11. Connecting frame; 110. First limiting part; 111. Second limiting part; 12. Rotating shaft; 13. Slider; 14. Linear guide rail; 2. Support plate; 3. First positioning mechanism; 30. First linear actuator; 31. Pressure plate; 4. Second positioning mechanism; 40. Power unit; 41. Gripper body; 5. Drive mechanism; 50. Active rack; 51. Second linear actuator; 52. Transmission gear; 53. Mounting bracket; 54. Detection sensor; 55. First fixing part; 56. Second fixing part; 6. Insulating basin; 7. Moving conductor; 8. Screw. Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0042] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0043] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] This embodiment provides a positioning device for pre-tightening a moving conductor and an insulating basin, such as... Figure 1 , Figure 2 and Figure 3 As shown, the positioning device includes a frame 1, a robotic arm (not shown), a first positioning mechanism 3, a second positioning mechanism 4, and a drive mechanism 5. The frame 1 is equipped with a support plate 2 for placing the insulating basin 6. The robotic arm is used to grasp the insulating basin 6 and the moving conductor 7 to their respective predetermined positions. It is easy to understand that the "predetermined position" here refers to the position on the support plate 2 for placing the insulating basin 6, and to the position on the insulating basin 6 for placing the moving conductor 7. The first positioning mechanism 3 is located on the frame 1 and is used to position the insulating basin 6 on the support plate 2. The second positioning mechanism 4 is located on the frame 1 and is used to position the moving conductor 7 on the insulating basin 6. By moving the insulating basin 6 and the moving conductor 7 by grasping them with the robotic arm, and by positioning the insulating basin 6 and the moving conductor 7 by the first positioning mechanism 3 and the second positioning mechanism 4 respectively, automated positioning of the insulating basin 6 and the moving conductor 7 is achieved during the pre-tightening operation of the moving conductor 7 and the insulating basin 6, improving positioning reliability and assembly efficiency.

[0046] Furthermore, in this embodiment, the drive mechanism 5 is connected to the second positioning mechanism 4 and is used to drive the second positioning mechanism 4 to switch between a first position and a second position. When the second positioning mechanism 4 is in the first position, it does not coincide with the support plate 2 in the vertical direction so that the robotic arm can place the insulating basin 6 on the support plate 2. When the second positioning mechanism 4 is in the second position, it is located directly above the support plate 2 and can clamp and position the moving conductor 7 in the insulating basin 6. By setting the drive mechanism 5 to drive the second positioning mechanism 4 to switch between the first position and the second position, the smooth placement of the insulating basin 6 by the robotic arm can be ensured.

[0047] The process of applying this positioning device is described as follows: First, the second positioning mechanism 4 is moved to the first position by the drive mechanism 5, ensuring that the second positioning mechanism 4 will not affect the placement of the insulating basin 6. Then, the robotic arm grasps the insulating basin 6 and places it on the support plate 2. Afterward, the first positioning mechanism 3 positions the insulating basin 6 on the support plate 2. Next, the drive mechanism 5 moves the second positioning mechanism 4 to the second position, and then the robotic arm grasps the moving conductor 7 and places it on the insulating basin 6. Then, the second positioning mechanism 4 positions the moving conductor 7 on the insulating basin 6. After completing the above positioning, the robotic arm grasps the screw 8 and pre-tightens the screw 8 onto the moving conductor 7 and the insulating basin 6. After completing the above assembly, the positioning of the moving conductor 7 and the insulating basin 6 by the first positioning mechanism 3 and the second positioning mechanism 4 is released. Then, the robotic arm grasps the pre-tightened moving conductor 7 and the insulating basin 6 and moves them to the next work station.

[0048] It should be noted that the robotic arm described in this embodiment can be a single robotic arm configured with different connectors to complete the operations in the above steps, or it can include multiple robotic arms corresponding to components such as the insulating basin 6, the moving conductor 7, and the screw 8. The robotic arm can be a four-axis, five-axis, or six-axis robotic arm. Using robotic arms to complete the above-mentioned tasks such as grasping components, moving components, and tightening screws 8 is existing technology and will not be elaborated here.

[0049] In this embodiment, the first positioning mechanism 3 includes a first linear driver 30 disposed on the frame 1 and a pressure plate 31 disposed on the output end of the first linear driver 30. Operationally, the pressure plate 31 can be moved up and down by the first linear driver 30. It is easy to understand that when the pressure plate 31 moves down to a certain height, it can press and position the insulating basin 6 onto the support plate 2; when the pressure plate 31 moves up to a certain height, it can maintain a certain distance from the insulating basin 6 to ensure that it does not interfere with the insulating basin 6 during the placement of the insulating basin 6 on the support plate 2.

[0050] Furthermore, in this embodiment, the first positioning mechanism 3 is provided in two sets, and the two sets of first positioning mechanisms 3 are evenly distributed circumferentially relative to the insulating basin 6. The pressure plates 31 in both sets of first positioning mechanisms 3 press against the edge of the insulating basin 6. The above structural design can further reduce the probability of the pressure plate 31 interfering with the insulating basin 6 during the process of the insulating basin 6 being placed on the support plate 2, and at the same time enhance the stability of the positioning of the insulating basin 6.

[0051] Combination Figure 4 As shown, the second positioning mechanism 4 in this embodiment includes a power unit 40 and two sets of gripper bodies 41. The power unit 40 drives the two sets of gripper bodies 41 to switch between a clamping state and an open state through relative movement. When the second positioning mechanism 4 is in the second position, the two sets of gripper bodies 41 are configured to allow the moving conductor 7 to be placed between the two sets of gripper bodies 41 in the open state and to clamp and position the moving conductor 7 against the insulating basin 6 in the clamping state. Specifically, the second positioning mechanism 4 in this embodiment is a pneumatic gripper, but an electric gripper can also be used as the second positioning mechanism 4 in other optional embodiments. The above structural design ensures the smooth placement of the moving conductor 7 relative to the insulating basin 6 and the clamping and positioning of the moving conductor 7 by the gripper bodies 41.

[0052] Combination Figure 5 , Figure 6 and Figure 7 As shown, the drive mechanism 5 in this embodiment includes a drive rack 50, a second linear actuator 51, a transmission gear 52, and a mounting frame 53. The drive rack 50 is slidably mounted on the frame 1 in a vertical direction. The second linear actuator 51 is connected to the drive rack 50 and drives it to reciprocate along the frame 1. The transmission gear 52 meshes with the drive rack 50. The mounting frame 53 is mounted on the transmission gear 52, and the second positioning mechanism 4 is mounted on the mounting frame 53. With this structural design, the second linear actuator 51 drives the second positioning mechanism 4 to switch between a first position and a second position via a swinging motion.

[0053] It is readily understood that in other alternative embodiments, the drive mechanism 5 may also include a drive motor mounted on the frame 1 and a connecting structure mounted on the output end of the drive motor. The second positioning mechanism 4 is mounted on the aforementioned connecting structure, and the drive motor directly drives the connecting structure to swing, thereby causing the second positioning mechanism 4 to swing between a first position and a second position. Alternatively, the drive mechanism 5 may also include a lifting slide and a translation slide mounted on the lifting slide. The second positioning mechanism 4 is mounted on the aforementioned translation slide, and the lifting slide and translation slide can drive the second positioning mechanism 4 to achieve lifting and translation. The second positioning mechanism 4 can switch between the first position and the second position through lifting and translation.

[0054] In this embodiment, both the first linear actuator 30 and the second linear actuator 51 are pneumatic rods. In other optional embodiments, electric actuators or the like can also be used as the first linear actuator 30 and the second linear actuator 51.

[0055] In this embodiment, the scheme of using the meshing transmission of the active rack 50 and the transmission gear 52 has the characteristics of high transmission efficiency and smooth movement, and can accurately convert the linear motion of the second linear actuator 51 into the swinging motion of the second positioning mechanism 4. At the same time, it can ensure the stability of the second positioning mechanism 4 in the process of clamping the positioning moving conductor 7.

[0056] Combination Figure 6 and Figure 7 As shown, the positioning device provided in this embodiment also includes a fixed plate 10, a connecting frame 11, and a rotating shaft 12. The fixed plate 10 is fixedly mounted on the frame 1, the connecting frame 11 is fixedly mounted on the fixed plate 10, and the rotating shaft 12 is mounted on the connecting frame 11. The drive rack 50 is slidably mounted on the fixed plate 10, and the transmission gear 52 is rotatably mounted relative to the connecting frame 11 via the rotating shaft 12. Specifically, in this embodiment, the transmission gear 52 is fixedly mounted relative to the rotating shaft 12, and the rotating shaft 12 is rotatably mounted relative to the connecting frame 11. In this embodiment, the mounting bracket 53 is locked and fixed to the transmission gear 52 with screws. A rotating hole is provided on the connecting frame 11, and the rotating shaft 12 passes through the rotating hole via a bushing and is rotatably mounted relative to the connecting frame 11.

[0057] Furthermore, in this embodiment, two sets of active racks 50 are arranged in parallel and spaced apart, and two sets of transmission gears 52 are arranged corresponding to the two sets of active racks 50. The drive mechanism 5 also includes a first fixing member 55 and a second fixing member 56. The first fixing member 55 is fixedly disposed at the upper end of the two sets of active racks 50, and the second fixing member 56 is fixedly disposed at the lower end of the two sets of active racks 50. The output end of the second linear driver 51 is connected to the first fixing member 55 or the second fixing member 56. When two sets of active racks 50 are arranged in parallel and spaced apart, and two sets of transmission gears 52 are also arranged accordingly, the drive mechanism 5 fixes the two sets of active racks 50 together through the first fixing member 55 and the second fixing member 56. This double rack and double gear transmission structure enables the driving force to be transmitted more evenly to the mounting frame 53, further improving the stability of the swing of the second positioning mechanism 4.

[0058] The drive mechanism 5 in this embodiment also includes a detection sensor 54 disposed on the frame 1. The detection sensor 54 is used to acquire the travel distance of the drive rack 50. Specifically, in this embodiment, a laser sensor is used as the detection sensor 54. The laser sensor is located below the second fixing member 56. During the movement of the second fixing member 56 following the drive rack 50, the laser sensor emits a laser and detects the time difference of the laser reflected back from the second fixing member 56 to measure the travel distance of the drive rack 50.

[0059] In addition, such as Figure 7 As shown, in this embodiment, the connecting frame 11 has a first limiting part 110 and a second limiting part 111. The first limiting part 110 cooperates with the first fixing member 55 to limit the downward movement of the active rack 50, and the second limiting part 111 cooperates with the second fixing member 56 to limit the upward movement of the active rack 50. That is, when the active rack 50 moves downward to the point where the first fixing member 55 contacts the first limiting part 110, it cannot move further downward due to the cooperation between the two. When the active rack 50 moves upward to the point where the second fixing member 56 contacts the second limiting part 111, it cannot move further upward due to the cooperation between the two.

[0060] The positioning device provided in this embodiment also includes a slide rail structure, which includes a slider 13 with a groove and a linear guide rail 14 slidably disposed in the groove. One of the slider 13 and the linear guide rail 14 is fixedly disposed on the fixed plate 10, and the other is fixedly disposed on the active rack 50. The slide rail structure can further improve the smoothness of the sliding of the active rack 50, reduce the shaking and friction during the transmission process, and improve the reliability and service life of the entire drive mechanism 5.

[0061] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A positioning device for pre-tightening a moving conductor and an insulating basin, characterized in that, The positioning device includes: The frame is equipped with a support plate for placing the insulating basin; A robotic arm used to grasp an insulating basin and a moving conductor to their respective predetermined positions; A first positioning mechanism is disposed on the frame and is used to position the insulating basin on the support plate; A second positioning mechanism, disposed on the frame and used to position the moving conductor in the insulating basin; and, A drive mechanism, which is connected to a second positioning mechanism and is used to drive the second positioning mechanism to switch between a first position and a second position; When the second positioning mechanism is in the first position, it does not coincide with the support plate in the vertical direction so that the robotic arm can place the insulating basin on the support plate. When the second positioning mechanism is in the second position, it is located directly above the support plate and can clamp and position the moving conductor in the insulating basin.

2. The positioning device as described in claim 1, characterized in that, The first positioning mechanism includes a first linear driver disposed on the frame and a pressure plate disposed on the output end of the first linear driver. The pressure plate is configured to move up and down under the drive of the first linear driver. The first positioning mechanism presses and positions the insulating basin onto the support plate through the pressure plate.

3. The positioning device as described in claim 2, characterized in that, The first positioning mechanism is provided in two sets, and the two sets of first positioning mechanisms are evenly distributed around the insulating basin. The pressure plates in the two sets of first positioning mechanisms are pressed against the edge of the insulating basin.

4. The positioning device as described in claim 1, characterized in that, The second positioning mechanism is a pneumatic gripper or an electric gripper. The second positioning mechanism includes a power unit and two sets of gripper bodies. The power unit is used to drive the two sets of gripper bodies to switch between a clamping state and an open state through relative movement. When the second positioning mechanism is in the second position, the two sets of gripper bodies are configured to allow the moving conductor to be placed between the two sets of gripper bodies in the open state and to clamp and position the moving conductor in the insulating basin in the clamping state.

5. The positioning device as described in any one of claims 1 to 4, characterized in that, The drive mechanism includes: The active rack is slidably mounted on the frame along the vertical direction; The second linear actuator is connected to the active rack and is used to drive the active rack to slide back and forth along the frame; A transmission gear that meshes with the drive rack; and, A mounting bracket is disposed on the transmission gear; The second positioning mechanism is disposed on the mounting bracket.

6. The positioning device as described in claim 5, characterized in that, The drive mechanism also includes a detection sensor mounted on the frame, which is used to acquire the travel distance of the drive rack.

7. The positioning device as described in claim 5, characterized in that, The positioning device further includes: A mounting plate, which is fixedly installed on the frame; A connecting bracket, which is fixedly mounted on the fixing plate; and, A rotating shaft is disposed on the connecting frame; The active rack is slidably mounted on the fixed plate, and the transmission gear is rotatably mounted relative to the connecting frame via the rotating shaft.

8. The positioning device as described in claim 7, characterized in that, The positioning device further includes a slide rail structure, which includes a slider with a groove and a linear guide rail slidably disposed in the groove. One of the slider and the linear guide rail is fixedly disposed on a fixed plate, and the other is fixedly disposed on a drive rack.

9. The positioning device as described in claim 7, characterized in that, The active rack is provided in two sets and the two sets of active racks are arranged in parallel and spaced apart. The transmission gear is provided in two sets and the two sets of transmission gears are arranged corresponding to the two sets of active racks. The drive mechanism also includes a first fixing member and a second fixing member. The first fixing member is fixedly disposed at the upper end of the two sets of active racks, and the second fixing member is fixedly disposed at the lower end of the two sets of active racks. The output end of the second linear driver is connected to the first fixing member or the second fixing member.

10. The positioning device as described in claim 9, characterized in that, The connecting frame has a first limiting part and a second limiting part. The first limiting part is used to cooperate with the first fixing member to limit the downward movement of the active rack, and the second limiting part is used to cooperate with the second fixing member to limit the upward movement of the active rack.

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