Winding core concentricity measuring device

Abstract

The utility model discloses a winding core concentricity measuring device, and relates to the technical field of lightning arrester production, in particular to a winding core concentricity measuring device, which comprises a detection bedplate, a turntable is fixedly arranged at the middle position above the detection bedplate, and a bottom positioning tool is arranged at the middle position above the turntable. A vertical plate is fixedly mounted behind the detection table close to the turntable, linear guide rails are arranged on two sides of the front of the vertical plate, and a height adjusting floating plate capable of sliding up and down and a top positioning floating plate are connected in front of the linear guide rails through sliding blocks. According to the winding core concentricity measuring device, the rotating disc, the infrared distance measuring sensor and the transmission lead screw are arranged in a matched mode, so that the winding core concentricity measuring device has the effects of being capable of automatically detecting, convenient to use and high in efficiency; the winding core concentricity measuring device has the effects of establishing a product model and guiding product improvement.

Description

Technical Field

[0001] The utility model relates to the technical field of arrester production, in particular to a winding core concentricity measuring device. Background Art

[0002] The core of a wound-type arrester is generally formed by stacking multiple zinc oxide resistors, winding them around their outer surface and impregnating them with resin. However, after the wound structure arrester core is wound and cured, if dimensional deviations or excessive internal stress occur during the manufacturing process, the arrester core will bend or deform to varying degrees, resulting in non-concentricity. Severe concentricity deviations will affect the thickness of the vulcanized rubber coating, and uneven rubber coating thickness will affect the resistance value and cause product failure. Therefore, the concentricity of the arrester core needs to be tested during the production process. Existing testing methods use squares, feeler gauges, or simple testing tools, which are inefficient and cannot establish product models, making it difficult to guide product improvements. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a winding core concentricity measuring device, which solves the problems raised in the above background technology.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a winding core concentricity measuring device, comprising a detection table, a turntable is fixedly installed in the middle position above the detection table, and a bottom positioning tool is installed in the middle position above the turntable, and a vertical plate is fixedly installed near the rear of the detection table near the turntable, and linear guide rails are provided on both sides of the front of the vertical plate, and the front of the linear guide rail is connected to a height adjustment floating plate and a top positioning floating plate that can slide up and down through a slider, and the four corners of the height adjustment floating plate are threadedly connected with a plug screw, and a compression spring is sleeved under the plug screw, and a detection floating plate that is lifted up by the compression spring is provided between the plug screws, an infrared ranging sensor is installed around the detection floating plate, a top positioning tool is installed under the top positioning floating plate, a lightning protection core is provided between the top positioning tool and the bottom positioning tool, and a transmission screw is provided at the rear of the vertical plate to drive the height adjustment floating plate and the top positioning floating plate to move up and down, and a spirit level is installed on the upper surface of the detection floating plate.

[0007] Preferably, the bottom positioning tooling and the top positioning tooling are rings or chucks that can be just inserted into the lightning protection core body. The bottom positioning tooling is concentric with the top positioning tooling. The bottom positioning tooling is driven to rotate by the turntable, and the top positioning tooling can also rotate by connecting to the bearing seat above the top positioning floating plate.

[0008] Preferably, there are two spirit levels, which are mounted horizontally and vertically on the back and side of the detection float respectively. The spirit levels can be used to determine whether the detection float is in a horizontal state.

[0009] Preferably, the driving screws are evenly distributed at the four corners of the detection float plate and cooperate with its small gap. The compression spring is in a compressed state and generates a strong elastic force, which not only pushes the detection float plate upward but also prevents the driving screws from loosening. Turning the driving screws can change the inclination angle of the detection float plate.

[0010] Preferably, there are four infrared ranging sensors, which uniformly detect the outer surface of the lightning protection core from four directions, and the concentricity of the lightning protection core is calculated by the change in the value when the lightning protection core rotates.

[0011] Preferably, there are two transmission screws and they are connected to the driving height adjustment floating plate and the top positioning floating plate respectively through screw nuts. The transmission screw is driven by the top motor, and the height of the driving height adjustment floating plate and the top positioning floating plate can be changed when the transmission screw rotates.

[0012] The utility model provides a winding core concentricity measuring device, which has the following beneficial effects:

[0013] 1. The winding core concentricity measuring device, through the coordinated arrangement of a turntable, an infrared ranging sensor and a transmission screw, enables the winding core concentricity measuring device to have the effect of automatic detection which is not only convenient but also efficient. The height of the tooling is automatically adjusted by the transmission screw to realize automatic clamping. The height of the infrared ranging sensor is automatically adjusted by the transmission screw to realize automatic change of the measuring position. The arrester core is automatically rotated by the turntable and then the concentricity is automatically detected by the infrared ranging sensor. Workers only need to load and unload the arrester core, so they can operate multiple measuring devices at the same time, thereby improving detection efficiency.

[0014] 2. The winding core concentricity measuring device, through the coordinated arrangement of the turntable, the infrared ranging sensor and the transmission screw, enables the winding core concentricity measuring device to have the effect of establishing a product model and guiding product improvement. The turntable automatically rotates the lightning arrester core and the transmission screw automatically adjusts the detection height of the infrared ranging sensor. The readings of the four infrared ranging sensors are used to record the relationship between the height of the lightning arrester core and the outer surface position to make a model of the lightning arrester core. Through the model, not only the concentricity deviation can be clearly seen, but also the angular position of the deviation can be known to guide product improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the first stereoscopic view of the present invention;

[0016] Figure 2This is a schematic structural diagram of the second stereoscopic view of the present invention;

[0017] Figure 3 It is a structural diagram of the main view of the utility model;

[0018] Figure 4 It is a schematic structural diagram of the side view of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a partial three-dimensional view of the utility model.

[0020] In the figure: 1. Inspection table; 2. Turntable; 3. Bottom positioning tool; 4. Vertical plate; 5. Linear guide; 6. Height adjustment floating plate; 7. Top positioning floating plate; 8. Driving screw; 9. Compression spring; 10. Inspection floating plate; 11. Infrared ranging sensor; 12. Top positioning tool; 13. Lightning protection core; 14. Transmission screw; 15. Level. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] A winding core concentricity measuring device includes a detection table 1, a turntable 2 is fixedly installed in the middle position above the detection table 1, a bottom positioning tool 3 is installed in the middle position above the turntable 2, a vertical plate 4 is fixedly installed near the rear of the detection table 1 near the turntable 2, linear guide rails 5 are set on both sides of the front of the vertical plate 4, and the front of the linear guide rail 5 is connected to a height adjustment floating plate 6 that can slide up and down and a top positioning floating plate 7 through a slider, and the four corners of the height adjustment floating plate 6 are threadedly connected with plug screws 8. 8 is sleeved with a compression spring 9, a detection floating plate 10 is set between the plug screws 8 and is lifted up by the compression spring 9. An infrared ranging sensor 11 is installed around the detection floating plate 10. A top positioning tool 12 is installed below the top positioning floating plate 7. A lightning protection core 13 is set between the top positioning tool 12 and the bottom positioning tool 3. A transmission screw 14 that drives the height adjustment floating plate 6 and the top positioning floating plate 7 to move up and down is set behind the vertical plate 4. A level 15 is installed on the upper surface of the detection floating plate 10.

[0023] In order to achieve the effect of convenient and efficient automatic detection, the height of the tooling is automatically adjusted by the transmission screw to realize automatic clamping, the height of the infrared ranging sensor is automatically adjusted by the transmission screw to realize automatic change of the measuring position, the lightning arrester core is automatically rotated by the turntable and then the concentricity is automatically detected by the infrared ranging sensor. Workers only need to load and unload the lightning arrester core, so they can operate multiple measuring devices at the same time, thereby improving detection efficiency.

[0024] As attached Figures 1 to 5 As shown, the present application adopts the following structure. First, according to the outer diameter size of the two ends of the lightning protection core 13, a bottom positioning tool 3 and a top positioning tool 12 can be sleeved thereon, or a chuck can be directly used to fix it. However, the chuck is less efficient and is only used in proofing or small batch production. Before testing, two levels 15 are used to check whether the detection float 10 is in a horizontal state. If the detection float 10 is not horizontal and is adjusted by plugging the screw 8, a calibration product is further placed between the bottom positioning tool 3 and the top positioning tool 12, and the infrared ranging sensor 11 is used to detect the distance to the outer surface of the calibration product and set it to zero and calibrate it. Further, the bottom of the lightning protection core 13 is inserted into the bottom positioning tool 3 and the upper end of the lightning protection core 13 is manually straightened so that it is concentric with the top positioning tool 12. Further, the motor drives the top positioning floating plate 7 downward through the transmission screw 14 so that the top of the lightning protection core 13 is also inserted into the top positioning tool 12. If the top of the lightning protection core 13 cannot be docked with the top positioning tool 12, it indicates that the lightning protection The lightning protection core and the one that is very bent do not need to be inspected again and can be directly treated as scrap. The device is further started for inspection. During this process, the motor drives the height adjustment floating plate 6 up and down through the transmission screw 14 to change the height of the infrared ranging sensor 11. After the infrared ranging sensor 11 reaches the set height, the turntable 2 works and drives the lightning protection core 13 to rotate synchronously. Then the four infrared ranging sensors 11 simultaneously detect the lightning protection core 13 at this height position. At this time, the reading of the infrared ranging sensor 11 is the difference between the actual product surface and the calibrated product surface. The sum of the difference and the radius of the calibrated product is the position of the outer surface of the actual product. By combining the readings of the four infrared ranging sensors 11 with the rotation angle of the lightning protection core 13, the cross-section of the actual product at this height position can be made, and the concentricity of the height position can also be known. Since the worker only needs to place the product between the bottom positioning tooling 3 and the top positioning tooling 12 to automatically complete the inspection, the worker can operate multiple measuring devices at the same time, thereby improving the inspection efficiency.

[0025] In order to achieve the effect of establishing product models and guiding product improvements, as shown in the attached Figure 1-5 As shown, the present application adopts the following structure, which changes the fixed-point height detection of concentricity by the infrared ranging sensor 11 into dynamic monitoring, that is, the height of the infrared ranging sensor 11 changes slowly while monitoring. At this time, multiple product sections can be connected to form a three-dimensional model of the lightning protection core 13. The position and direction of the deformation and bending of the product can be intuitively seen through the three-dimensional model, and then not only the concentricity deviation can be clearly seen, but also the angular position of the deviation can be known to guide product improvement.

[0026] To sum up, the winding core concentricity measuring device automatically adjusts the height of the tooling through the transmission screw 14 to achieve automatic clamping, automatically adjusts the height of the infrared ranging sensor 11 through the transmission screw 14 to achieve automatic change of the measuring position, automatically rotates the lightning arrester core through the turntable 2 and then automatically detects the concentricity through the infrared ranging sensor 11. Workers only need to load and unload the lightning arrester core, so they can operate multiple measuring devices at the same time, thereby improving the detection efficiency. The lightning arrester core is automatically rotated through the turntable 2 and the detection height of the infrared ranging sensor 11 is automatically adjusted through the transmission screw 14. The relationship between the height of the lightning arrester core and the outer surface position is recorded through the readings of the four infrared ranging sensors 11. A model of the lightning arrester core can be made. Through the model, not only can the concentricity deviation be clearly seen, but also the angular position of the deviation can be known to guide product improvement.

[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A winding core concentricity measuring device, comprising a detection plate (1), characterized in that: A turntable (2) is fixedly installed in the middle position above the detection table (1), a bottom positioning tool (3) is installed in the middle position above the turntable (2), a vertical plate (4) is fixedly installed on the detection table (1) near the rear of the turntable (2), linear guide rails (5) are arranged on both sides of the front of the vertical plate (4), and a height adjustment floating plate (6) and a top positioning floating plate (7) that can slide up and down are connected to the front of the linear guide rail (5) through a slider, and the four corners of the height adjustment floating plate (6) are threadedly connected with plug screws (8), and a compression spring (9) is sleeved below the plug screw (8) ), a detection floating plate (10) is provided between the plug screws (8) and is lifted up by a compression spring (9), an infrared distance sensor (11) is installed around the detection floating plate (10), a top positioning tool (12) is installed below the top positioning floating plate (7), a lightning protection core (13) is provided between the top positioning tool (12) and the bottom positioning tool (3), a transmission screw (14) for driving the height adjustment floating plate (6) and the top positioning floating plate (7) to move up and down is provided behind the vertical plate (4), and a level (15) is installed on the upper surface of the detection floating plate (10).

2. The winding core concentricity measuring device according to claim 1, characterized in that: The bottom positioning tool (3) and the top positioning tool (12) are rings or chucks that can be just inserted into the lightning protection core (13). The bottom positioning tool (3) and the top positioning tool (12) are concentric. The bottom positioning tool (3) is driven to rotate by the turntable (2), and the top positioning tool (12) is also rotatable by being connected to the bearing seat above the top positioning floating plate (7).

3. The winding core concentricity measuring device according to claim 1, characterized in that: There are two levels (15), which are mounted horizontally and vertically on the back and side of the detection float (10), respectively. The level (15) can be used to determine whether the detection float (10) is in a horizontal state.

4. The winding core concentricity measuring device according to claim 1, characterized in that: The plug screws (8) are evenly distributed at the four corners of the detection float (10) and matched with a small gap therewith. The compression spring (9) is in a compressed state and generates a strong elastic force, which not only pushes the detection float (10) upward but also prevents the plug screws (8) from loosening. Turning the plug screws (8) can change the tilt angle of the detection float (10).

5. The winding core concentricity measuring device according to claim 1, characterized in that: The number of infrared distance measuring sensors (11) is four and they uniformly detect the outer surface of the lightning protection core (13) from four directions. When the lightning protection core (13) rotates, its concentricity is calculated through the change in the value.

6. The winding core concentricity measuring device according to claim 1, characterized in that: There are two transmission screws (14) and they are connected to the driving height adjustment floating plate (6) and the top positioning floating plate (7) respectively through screw nuts. The transmission screws (14) are driven by the motor at the top. When the transmission screws (14) rotate, the heights of the driving height adjustment floating plate (6) and the top positioning floating plate (7) can be changed.

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