Automatic nut mounting device for electric power fittings

By designing an automatic nut tightening device for power fittings, which combines a robotic arm and a locking motor with clamping fixtures and a limiting mechanism, the problem of laborious tightening of suspension clamp nuts is solved, achieving an efficient and stable nut tightening process and reducing labor intensity.

CN224169211UActive Publication Date: 2026-04-28新乡市天吉电力设备有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
新乡市天吉电力设备有限公司
Filing Date
2025-05-22
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing suspension clamps are difficult and laborious to tighten the nuts during production, resulting in high labor intensity for workers.

Method used

An automatic nut tightening device for power fittings was designed, including a robotic arm and a locking motor. Combined with the clamping fixture and limiting mechanism on the conveyor belt, the robotic arm drives the locking motor to tighten the nut on the suspension clamp. With the pre-tightening and limiting mechanism of the sliding seat and the fixed seat, the stability of the nut tightening process is ensured.

Benefits of technology

It reduces the labor intensity of workers, improves the efficiency and stability of tightening the suspension clamp nut, and prevents the nut from tipping over or shifting during transportation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224169211U_ABST
    Figure CN224169211U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic nut screwing device for an electric power fitting, relates to the technical field of electric power fitting processing, and aims to solve the problem that a nut on an existing suspension clamp is inconvenient to screw and process when the existing suspension clamp is produced. Comprising a mechanical arm and a locking motor, the free end of the mechanical arm is provided with the locking motor, the output end of the locking motor is connected with a nut sleeve, one side of the mechanical arm is provided with a conveying frame, the conveying frame is rotationally connected with a rotating roller, the rotating roller is sleeved with a conveying belt, the conveying belt is provided with a plurality of sets of clamping tools used for containing electric power fittings, and the clamping tools are arranged on the conveying belt. The conveying belts are uniformly distributed on the conveying belt; by arranging the clamping tool on the conveying belt, the suspension clamp can be supported, and the clamping tool is matched with the mechanical arm and the locking motor to screw a nut on the suspension clamp, so that the labor intensity of workers is reduced; the conveying frame is further provided with a limiting mechanism, and the limiting mechanism assists the clamping tool in limiting the electric power fittings.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of power fitting processing equipment technology, and in particular to an automatic nut-attaching device for power fittings. Background Technology

[0002] Suspension clamps are a type of electrical fittings, mainly used to fix and support conductors on overhead transmission lines.

[0003] When producing suspension clamps, U-bolts need to be clamped onto the clamps and nuts need to be screwed onto both ends of the U-bolts. Because the suspension clamps have a relatively compact structure and the nuts have a small diameter, even if they are tightened manually, there are still difficulties in fixing them and the nuts are difficult to tighten.

[0004] Therefore, this application provides an automatic nut-fitting device for power fittings to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide an automatic nut tightening device for power fittings, which aims to solve the problem that it is inconvenient to tighten the nuts on the existing suspension clamps during production.

[0006] To achieve the above objectives, this application provides the following technical solution: an automatic nut-locking device for power fittings, comprising a robotic arm and a locking motor, wherein the locking motor is mounted on the free end of the robotic arm, and a nut sleeve is connected to the output end of the locking motor for rotating and locking the nut;

[0007] The robotic arm is provided with a conveyor frame on one side, and a rotating roller is rotatably connected to the conveyor frame. There are two sets of rotating rollers, and a conveyor belt is fitted on both sets of rotating rollers. One set of rotating rollers is driven by a conveyor motor.

[0008] The conveyor belt is equipped with clamping fixtures for placing power fittings. There are multiple sets of clamping fixtures, which are evenly distributed on the conveyor belt. By setting clamping fixtures on the conveyor belt, the suspension clamps can be supported, and with the help of the robotic arm and locking motor, the nuts on the suspension clamps can be tightened, reducing the labor intensity of the workers.

[0009] The conveyor frame is also equipped with a limiting mechanism, which assists the clamping fixture in limiting the power fittings.

[0010] Preferably, the clamping fixture includes a mounting plate and a clamp, the mounting plate being riveted to the conveyor belt and the clamp being mounted on the mounting plate for supporting the power fittings.

[0011] Preferably, the clamp includes a sliding seat and a fixed seat, the sliding seat and the fixed seat have the same structure, and the opposing surfaces of the two are provided with grooves for placing electrical fittings, and the opposing edges of the two are also provided with chamfers.

[0012] Preferably, the sliding seat is slidably connected to the mounting plate, and the mounting plate is also provided with a mounting base. A guide rod is provided on the facing surface of the mounting base and the sliding seat. A sliding hole adapted to the guide rod is opened on the sliding seat. A spring is also provided between the sliding seat and the mounting base. The suspension clamp is clamped by the cooperation of the sliding seat and the fixed seat. At the same time, under the action of the spring and the fixed seat, the suspension clamp can be pre-tightened to prevent it from tipping over during the conveyor belt conveying process.

[0013] Preferably, the limiting mechanism includes a mounting frame and a telescopic cylinder. The mounting frame is mounted on the conveyor frame, and the telescopic cylinder is also provided on the mounting frame. The output end of the telescopic cylinder corresponds to the position of the sliding seat. The limiting mechanism is set on the conveyor frame to limit the sliding seat and cooperate with the locking motor to tighten the nut to prevent displacement.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] In this invention, a clamping fixture is installed on the conveyor belt to support the suspension clamp. A robotic arm and a locking motor are used to tighten the nut on the suspension clamp, reducing the labor intensity of workers. A sliding seat and a fixed seat are used to clamp the suspension clamp. Simultaneously, the spring and the fixed seat provide pre-tension to prevent tipping during conveyor belt transport. A limiting mechanism is installed on the conveyor frame to limit the sliding seat, and the locking motor, in conjunction with the sliding seat, tightens the nut to prevent displacement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping fixture installation of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the limiting mechanism of this utility model;

[0020] Figure 4 This is a cross-sectional view of the clamping fixture of this utility model.

[0021] In the diagram: 1. Robotic arm; 2. Locking motor; 3. Conveyor motor; 4. Conveyor frame; 5. Clamping fixture; 6. Mounting frame; 7. Telescopic cylinder; 8. Conveyor belt;

[0022] 51. Mounting plate; 52. Mounting base; 53. Spring; 54. Guide rod; 55. Sliding seat; 56. Fixed seat; 57. Groove; 58. Sliding hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: Reference Figure 1-4 The automatic nut-locking device for power fittings shown includes a robotic arm 1 and a locking motor 2. The locking motor 2 is installed at the free end of the robotic arm 1, and a nut sleeve is connected to the output end of the locking motor 2 for rotating and locking the nut.

[0025] The robotic arm 1 is provided with a conveyor frame 4 on one side. A rotating roller is rotatably connected to the conveyor frame 4. There are two sets of rotating rollers, and a conveyor belt 8 is fitted on both sets of rotating rollers. One set of rotating rollers is driven by a conveyor motor 3.

[0026] like Figure 2 As shown, the conveyor belt 8 is provided with clamping fixtures 5 for placing power fittings. There are multiple sets of clamping fixtures 5, which are evenly distributed on the conveyor belt 8.

[0027] The clamping fixture 5 includes a mounting plate 51 and a clamping seat. The mounting plate 51 is riveted to the conveyor belt 8, and the clamping seat is mounted on the mounting plate 51 for supporting the power fittings.

[0028] like Figure 4 As shown, the clamp includes a sliding seat 55 and a fixed seat 56. The sliding seat 55 and the fixed seat 56 have the same structure, and the opposing surfaces of the two are provided with grooves 57 for placing power fittings. The opposing edges of the two are also provided with chamfers. The chamfers facilitate the clamping of the suspension clamp.

[0029] The sliding seat 55 is slidably connected to the mounting plate 51. The mounting plate 51 is also provided with a mounting seat 52. A guide rod 54 is provided on the facing surface of the mounting seat 52 and the sliding seat 55. The sliding seat 55 is provided with a sliding hole 58 that matches the guide rod 54. A spring 53 is also provided between the sliding seat 55 and the mounting seat 52. The guide rod 54 is used to ensure the stability of the movement of the sliding seat 55. The spring 53 is used to pre-tighten the suspension clamp to prevent it from falling off the clamping fixture 5 when the conveyor belt 8 is conveying.

[0030] like Figure 3 As shown, the conveyor frame 4 is also provided with a limiting mechanism, which assists the clamping fixture 5 in limiting the power fittings.

[0031] The limiting mechanism includes a mounting frame 6 and a telescopic cylinder 7. The mounting frame 6 is mounted on the conveyor frame 4, and the telescopic cylinder 7 is also mounted on the mounting frame 6. The output end of the telescopic cylinder 7 corresponds to the position of the sliding seat 55. The telescopic end of the telescopic cylinder 7 pushes the sliding seat 55 to move towards the fixed seat 56, further fixing and limiting the suspension clamp.

[0032] The working principle of this utility model is as follows: When in use, the device is connected to power and connected to an external PLC control center. The PLC control center controls the opening and closing of the electrical components in the device.

[0033] The worker installs the suspension clamp to be processed on the clamping fixture 5, with one end embedded in the groove 57 of the sliding seat 55. The sliding seat 55 is pushed to move along the guide rod 54 toward the mounting seat 52, and the spring 53 is compressed, so that the other end of the suspension clamp is embedded in the groove 57 on the fixed seat 56. Under the elastic force of the spring 53, the suspension clamp is installed in the clamping fixture 5.

[0034] Control the conveyor motor 3 to rotate, which drives the conveyor belt 8 to rotate on the conveyor frame 4, thereby driving the clamping fixture 5 to move towards the robotic arm 1. When the clamping fixture 5 moves to below the free end of the robotic arm 1, the conveyor motor 3 stops working, and the telescopic cylinder 7 is controlled to extend, applying a thrust to the sliding seat 55 to move towards the fixed seat 56, so that the sliding seat 55 and the fixed seat 56 clamp and limit the suspension wire clamp.

[0035] The robotic arm 1 is controlled to work, driving the locking motor 2 and the nut sleeve to align with the nut on the suspension clamp and lock it, thus completing the locking process of the nut on the suspension clamp.

[0036] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0037] Components not described in detail in this article are existing technologies.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic nut-locking device for power fittings, comprising a robotic arm (1) and a locking motor (2), wherein the locking motor (2) is mounted on the free end of the robotic arm (1), and a nut sleeve is connected to the output end of the locking motor (2) for rotating and locking the nut; Its features are: The robotic arm (1) is provided with a conveyor frame (4) on one side. A rotating roller is rotatably connected to the conveyor frame (4). There are two sets of rotating rollers, and a conveyor belt (8) is fitted on both sets of rotating rollers. One set of rotating rollers is driven by a conveyor motor (3). The conveyor belt (8) is provided with clamping fixtures (5) for placing electrical fittings. Multiple sets of clamping fixtures (5) are provided and are evenly distributed on the conveyor belt (8). The conveyor frame (4) is also provided with a limiting mechanism, which assists the clamping fixture (5) in limiting the power fittings.

2. The automatic nut-locking device for power fittings according to claim 1, characterized in that: The clamping fixture (5) includes a mounting plate (51) and a clamp. The mounting plate (51) is riveted to the conveyor belt (8), and the clamp is mounted on the mounting plate (51) for supporting the power fittings.

3. The automatic nut-locking device for power fittings according to claim 2, characterized in that: The clamp includes a sliding seat (55) and a fixed seat (56). The sliding seat (55) and the fixed seat (56) have the same structure, and the opposing surfaces of the two are provided with grooves (57) for placing electrical fittings, and the opposing edges of the two are also provided with chamfers.

4. The automatic nut-locking device for power fittings according to claim 3, characterized in that: The sliding seat (55) is slidably connected to the mounting plate (51). The mounting plate (51) is also provided with a mounting seat (52). A guide rod (54) is provided on the facing surface of the mounting seat (52) and the sliding seat (55). A sliding hole (58) adapted to the guide rod (54) is opened on the sliding seat (55). A spring (53) is also provided between the sliding seat (55) and the mounting seat (52).

5. An automatic nut-locking device for power fittings according to claim 3 or 4, characterized in that: The limiting mechanism includes a mounting frame (6) and a telescopic cylinder (7). The mounting frame (6) is mounted on the conveyor frame (4), and the telescopic cylinder (7) is also mounted on the mounting frame (6). The output end of the telescopic cylinder (7) corresponds to the position of the sliding seat (55).