Asphalt processing grinding head and automatic breakage identification method thereof

Abstract

The present application relates to the technical field of grinding head, especially relates to an asphalt processing grinding head and a broken automatic identification method thereof, the asphalt processing grinding head comprises a grinding disc, an electrode, a conductive slide rail and an asphalt grinding plate, the conductive slide rail is located on the upper surface of the grinding disc and is used for transmitting power, the electrode is located on the lower surface of the grinding disc, and the positive and negative electrodes of the electrode are connected with the positive and negative electrodes of the conductive slide rail respectively to realize the transmission of power, and the asphalt grinding plate is installed on the lower surface of the grinding disc to cover and protect the exposed part of the electrode.The present application has the advantages that the broken grinding head can be quickly and accurately identified through the short circuit of the electrode, the omissions and errors in manual detection are avoided, and therefore the production efficiency is greatly improved.The broken grinding head is automatically identified to reduce the abrasion of equipment caused by the broken grinding disc, thereby prolonging the service life of the equipment and reducing the maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of grinding head processing technology, and in particular to an asphalt processing grinding head and an automatic method for identifying its damage. Background Technology

[0002] Small grinding head processing technology is a key process in optical processing, widely used in aerospace, medical, military, electronics, and other industries. In industries involving small grinding head processing, asphalt grinding discs are indispensable tools. With the development of manufacturing, the requirements for asphalt grinding discs are becoming increasingly stringent, leading to increased usage frequency and wear rate. However, in actual production processes, the current technology commonly fails to promptly identify asphalt grinding disc damage. Because grinding disc damage cannot be identified in a timely manner, problems such as unstable quality and slowed processing speed may occur during processing, leading to a significant decrease in production efficiency. Damaged grinding discs will cause increased surface roughness and decreased dimensional accuracy of the processed workpieces. Continuing to use a damaged grinding disc may accelerate lens wear, leading to increased processing costs and even causing the lens to be scrapped. If a damaged grinding disc is not replaced in time, accidents may occur during processing, such as the grinding disc breaking or flying out, posing a safety threat to operators and equipment. Failure to identify grinding disc damage in a timely manner may lead to production interruptions, affecting the execution of production plans and the guarantee of delivery dates. Relying on manual periodic inspection of grinding disc status is not only inefficient but also requires a large investment of human resources, increasing labor costs, and lacks real-time accuracy, making it difficult to detect and deal with grinding disc damage in the first place. Summary of the Invention

[0003] In view of this, the present invention aims to provide an asphalt processing grinding head and an automatic method for identifying damage thereto, which determines grinding head damage by short-circuiting electrodes.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows: A bitumen grinding head includes a grinding disc, electrodes, a conductive slide rail, and a bitumen grinding plate. The conductive slide rail is located on the upper surface of the grinding disc and is used to transmit power. The electrodes are located on the lower surface of the grinding disc, and the positive and negative terminals of the electrodes are connected to the positive and negative terminals of the conductive slide rail, respectively, to realize power transmission. The bitumen grinding plate is installed on the lower surface of the grinding disc to cover and protect the exposed parts of the electrodes.

[0005] Furthermore, the electrode substrate is made of polyimide, the electrode adhesive is attached to the lower surface of the grinding disc, and the outer surface of the electrode is coated with a layer of oxygen-free copper.

[0006] Furthermore, the electrode includes a first arc plate and a second arc plate that are adapted to each other. On the inner surface of the arc of the first arc plate and the second arc plate, there are first strip plate groups and second strip plate groups composed of first strip plates of different lengths, respectively, at equal intervals, and the outer contours of the first strip plate groups and the second strip plate groups are both circular. After the first strip plate groups and the second strip plate groups are intersected in an alternating manner, the first arc plate and the second arc plate form a disk with openings at both ends, and the spacing between each adjacent first strip plate and second strip plate is equal. A first connecting piece and a second connecting piece extend from one end of the first arc plate and the second arc plate on the same side, respectively. The first connecting piece and the second connecting piece are respectively connected to the positive and negative poles of the conductive slide rail.

[0007] Furthermore, the thickness of the first arc sheet, the second arc sheet, the first strip sheet group, and the second strip sheet group are all equal, with a thickness of 0.05mm-0.2mm.

[0008] Furthermore, the width of each strip is 0.2mm-0.5mm; the spacing between two adjacent strips is 0.2mm-0.7mm.

[0009] An automatic identification method for damage to an asphalt processing grinding head, using the aforementioned asphalt processing grinding head, includes the following steps: S1. Power on the electrodes and the conductive slide rail.

[0010] S2. The control circuit monitors the short-circuit signal in the circuit at a frequency of once every 0.5 seconds.

[0011] S3. When the signal processor detects a short circuit signal, the signal processor will increase the monitoring frequency to once every 0.1 seconds.

[0012] S4. When the signal processor detects more than 4 short-circuit signals at the increased monitoring frequency, the system determines that the grinding disc is damaged based on the detected short-circuit signals.

[0013] S5. The signal processor sends a stop signal to the control device to stop the operation of the grinding disc and issues an alarm signal.

[0014] S6. If the short-circuit signal detected by the signal processor in step S4 does not exceed 4 times, the control circuit will readjust the monitoring frequency to once every 0.5 seconds and repeat steps S3-S6 to continuously monitor the status of the grinding disc.

[0015] Compared with the prior art, the present invention can achieve the following beneficial effects: 1) By short-circuiting the electrodes, damaged grinding heads can be quickly and accurately identified, avoiding omissions and errors in manual inspection, thereby greatly improving production efficiency.

[0016] 2) By automatically identifying damaged grinding heads, the wear and tear on the equipment caused by the damage to the grinding disc is reduced, thereby extending the service life of the equipment and reducing maintenance costs.

[0017] 3) By automatically identifying and promptly replacing damaged grinding heads, the surface roughness and dimensional accuracy of the processed workpieces are guaranteed, thus improving product quality.

[0018] 4) Automated identification of damaged grinding heads also provides higher safety. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of an asphalt processing grinding head provided according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the grinding disc and electrode according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electrode provided according to an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 1. Grinding disc; 2. Electrode; 21. First arc plate; 22. Second arc plate; 23. First strip plate group; 24. Second strip plate group; 25. First connecting plate; 26. Second connecting plate; 3. Conductive slide rail; 4. Asphalt grinding plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not constitute a limitation thereof.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention 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 invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides an asphalt processing grinding head, including a grinding disc 1, an electrode 2, a conductive slide rail 3, and an asphalt grinding plate 4. The conductive slide rail 4 is located on the upper surface of the grinding disc 1 and is used to transmit power. The electrode 2 is located on the lower surface of the grinding disc, and the positive and negative poles of the electrode 2 are respectively connected to the positive and negative poles of the conductive slide rail 4 to realize power transmission. The asphalt grinding plate 4 is installed on the lower surface of the grinding disc to cover and protect the exposed part of the electrode 2.

[0027] As one of the core processes in optical manufacturing, the precision and stability of grinding head processing technology directly affect the optical performance of the final product. In this precise process, the choice of polishing slurry is particularly crucial. Commonly used solutions include cerium oxide, aluminum oxide, and silicon oxide, which not only possess excellent polishing performance but also exhibit good electrical conductivity. Conversely, the grinding disc surface of the grinding head is made of asphalt material, which exhibits excellent insulation properties at room temperature, providing a stable substrate for the processing.

[0028] However, in actual production, grinding heads face the risk of breakage due to multiple factors such as friction and wear, improper human operation, and differences in asphalt material. To effectively monitor and prevent grinding head damage, this invention combines the insulating properties of asphalt with the conductive properties of polishing fluid. Electrodes are connected to the bottom of the grinding disc, in the area directly in contact with the asphalt grinding plate. Utilizing the excellent adhesion and viscosity of asphalt itself, the heated and softened asphalt is tightly bonded to the flexible electrode, which is then allowed to cool and solidify naturally to room temperature, thus achieving a firm bond between electrode 2 and grinding disc 1. During processing, if the grinding head breaks for any reason, the polishing fluid will quickly penetrate into the cracked grinding disc and directly contact the electrode. Due to the good conductivity of the polishing fluid, this contact immediately triggers a short circuit between electrodes 2. By monitoring this short circuit signal, the system can instantly and accurately identify the damage state of the grinding head, thereby reacting quickly, such as stopping the machine for inspection or replacing the grinding head, effectively avoiding further damage caused by grinding head breakage, ensuring the continuous and stable operation of the production line and the continuous improvement of product quality.

[0029] Furthermore, the base material of electrode 2 is polyimide, electrode 2 is glued to the lower surface of grinding disc 1, and the outer surface of electrode 2 is coated with a layer of oxygen-free copper.

[0030] Polyimide (PI) is a high-performance polymer material with excellent high-temperature resistance, wear resistance, corrosion resistance, and electrical insulation properties. Choosing polyimide as the substrate material for electrode 2 ensures that the electrode maintains stable performance under harsh environments such as high temperature, high humidity, and high pressure.

[0031] Oxygen-free copper (OFC) is a high-purity copper material with excellent electrical conductivity and good machinability. Coating the outer surface of electrode 2 with a layer of oxygen-free copper can significantly improve the electrode's conductivity, reduce resistance loss, and enhance its wear resistance and corrosion resistance. Furthermore, the oxygen-free copper coating can prevent the electrode from chemically reacting with asphalt or other media during processing, thereby extending the electrode's service life.

[0032] like Figure 3As shown, electrode 2 includes a first arc plate 21 and a second arc plate 22 that are adapted to each other. On the inner surface of the arc of the first arc plate 21 and the second arc plate 22, there are strip-shaped strips of different lengths arranged at equal intervals, namely a first strip plate group 23 and a second strip plate group 24. The outer contours of the first strip plate group 22 and the second arc plate 22 are both circular. The first strip plate group 23 and the second strip plate group 24 intersect in an alternating manner. After the intersection, the first arc plate 21 and the second arc plate 22 form a disk with openings at both ends, and the spacing between each adjacent first strip plate and second strip plate is equal. A first connecting piece 25 and a second connecting piece 26 extend from one end of the first arc plate 21 and the second arc plate 22 on the same side, respectively. The first connecting piece 25 and the second connecting piece 26 are respectively connected to the positive and negative poles of the conductive slide rail 3.

[0033] The first arc plate 21 and the second arc plate 22 serve as the basic structure of the electrode. Their arc shape helps to better adapt to the curvature of the lower surface of the grinding disc, ensuring a tight fit between the electrode and the grinding disc. At the same time, the first strip plate group 23 and the second strip plate group 24 set on the inner surface of the arc not only increase the surface area of ​​the electrode 2, but also reduce resistance and improve conductivity by providing more current paths.

[0034] The first strip group 23 and the second strip group 24 are interwoven in an alternating manner. This design helps to distribute the current evenly and reduces the occurrence of local overheating. At the same time, it also increases the stability of the electrode 2 structure, making it more wear-resistant.

[0035] The first arc plate 21 and the second arc plate 22, after crossing, form a disc-shaped structure with openings at both ends. This structure is beneficial for heat dissipation because the disc-shaped structure can provide a larger heat dissipation area, and the opening design can promote air circulation and help remove heat.

[0036] A first connecting piece 25 and a second connecting piece 26 extend from one end of the first arc plate 21 and the second arc plate 22 on the same side, respectively. These two connecting pieces are connected to the positive and negative terminals of the conductive slide rail 3, respectively. This design ensures a reliable connection between the electrode 2 and the conductive slide rail 3, allowing current to be smoothly transmitted to the electrode 2.

[0037] Because electrode 2 uses materials with excellent conductivity such as oxygen-free copper, and is designed with a complex strip-shaped sheet structure to increase the surface area and current path, electrode 2 will have good conductivity.

[0038] Electrode 2 using the above design has the following advantages: Abrasion resistance: The choice of polyimide substrate material provides electrode 2 with good abrasion resistance, enabling it to withstand greater friction and wear during asphalt processing.

[0039] Stability: The complex structural design not only increases the surface area and conductivity of electrode 2, but also improves its structural stability, which helps to reduce damage caused by vibration or impact.

[0040] High-efficiency heat dissipation: The disc-shaped structure and open design give the electrode excellent heat dissipation performance, which helps to maintain the temperature stability of the electrode during processing, thereby improving processing efficiency and product quality.

[0041] Furthermore, the thicknesses of the first arc plate 21, the second arc plate 22, the first strip plate group 23, and the second strip plate group 24 are all equal, ranging from 0.05mm to 0.2mm.

[0042] Furthermore, the width of each strip is 0.2mm-0.5mm; the spacing between two adjacent strips is 0.2mm-0.7mm.

[0043] In this embodiment, the first arc sheet 21 and the first strip sheet group 23 are integrally formed, and the second arc sheet 22 and the second strip sheet group 24 are integrally formed.

[0044] An automatic identification method for damage to an asphalt processing grinding head, using the aforementioned asphalt processing grinding head, includes the following steps: S1. Power on electrode 2 and conductive slide rail 3.

[0045] S2. The control circuit monitors the short-circuit signal in the circuit at a frequency of once every 0.5 seconds.

[0046] S3. When the signal processor detects a short circuit signal, the signal processor will increase the monitoring frequency to once every 0.1 seconds.

[0047] S4. When the signal processor detects more than 4 short-circuit signals at the increased monitoring frequency, the system determines that the grinding disc is damaged based on the detected short-circuit signals.

[0048] S5. The signal processor sends a stop signal to the control device to stop the operation of the grinding disc and issues an alarm signal.

[0049] S6. If the short-circuit signal detected by the signal processor in step S4 does not exceed 4 times, the control circuit will readjust the monitoring frequency to once every 0.5 seconds and repeat steps S3-S6 to continuously monitor the status of the grinding disc.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0051] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A grinding head for asphalt processing, characterized in that, The device includes a grinding disc, electrodes, a conductive slide rail, and an asphalt grinding plate. The conductive slide rail is located on the upper surface of the grinding disc and is used to transmit electricity. The electrodes are located on the lower surface of the grinding disc, and the positive and negative terminals of the electrodes are respectively connected to the positive and negative terminals of the conductive slide rail to realize the transmission of electricity. The asphalt grinding plate is mounted on the lower surface of the grinding disc to cover and protect the exposed portion of the electrode; The electrode substrate is made of polyimide, and the electrode is glued to the lower surface of the grinding disc. The outer surface of the electrode is coated with a layer of oxygen-free copper. The electrode includes a first arc plate and a second arc plate that are adapted to each other. On the inner surface of the arc of the first arc plate and the second arc plate, there are first strip plate groups and second strip plate groups composed of strip plates of different lengths at equal intervals, and the outer contours of the first strip plate groups and the second strip plate groups are both circular. After the first strip plate groups and the second strip plate groups are intersected in an alternating manner, the first arc plate and the second arc plate form a disc with openings at both ends. The spacing between each adjacent first strip plate and second strip plate is equal. A first connecting plate and a second connecting plate extend from one end of the first arc plate and the second arc plate on the same side, and the first connecting plate and the second connecting plate are respectively connected to the positive and negative poles of the conductive slide rail.

2. The asphalt processing grinding head according to claim 1, characterized in that, The first arc sheet, the second arc sheet, the first strip sheet group, and the second strip sheet group all have the same thickness, which is 0.05mm-0.2mm.

3. The asphalt processing grinding head according to claim 2, characterized in that, The width of each strip is 0.2mm-0.5mm; the distance between two adjacent strips is 0.2mm-0.7mm.

4. An automatic identification method for damage to an asphalt processing grinding head, implemented using the asphalt processing grinding head according to any one of claims 1-3, characterized in that, Includes the following steps: S1. Energize the electrode and the conductive slide rail; S2. The control circuit monitors the short-circuit signal in the circuit at a frequency of once every 0.5 seconds; S3. When the signal processor detects a short circuit signal, the signal processor increases the monitoring frequency to once every 0.1 seconds; S4. When the signal processor detects more than 4 short-circuit signals at the enhanced monitoring frequency, the system determines that the grinding disc is damaged based on the detected short-circuit signals. S5. The signal processor sends a stop signal to the control device to stop the operation of the grinding disc and issues an alarm signal; S6. If the short-circuit signal detected by the signal processor in step S4 does not exceed 4 times, the control circuit will readjust the monitoring frequency to once every 0.5 seconds and repeat steps S3-S6 to continuously monitor the state of the grinding disc.

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