Asphalt processing grinding head

Abstract

The utility model relates to the technical field of grinding heads, in particular to an asphalt processing grinding head which comprises a grinding disc, an electrode, a conductive sliding rail and an asphalt grinding plate, and the conductive sliding rail is located on the upper surface of the grinding disc and used for transmitting electric power; the positive electrode and the negative electrode of the electrode are respectively connected with the positive electrode and the negative electrode of the conductive sliding rail so as to realize power transmission; and the asphalt grinding plate is mounted on the lower surface of the grinding disc so as to cover and protect the exposed part of the electrode. The device has the advantages that the damaged grinding head can be quickly and accurately recognized through the short circuit of the electrode, omissions and errors in manual detection are avoided, and therefore the production efficiency is greatly improved. And aggravated abrasion of equipment due to damage of the grinding disc is reduced by automatically recognizing the damaged grinding head, so that the service life of the equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grinding head processing, and in particular to an asphalt processing grinding head. Background Art

[0002] Small grinding head processing technology is a key process in optical processing and is widely used in aerospace, medical, military, electronics and other industries. In industries involving small grinding head processing technology, asphalt grinding discs are an indispensable and important tool. With the development of the manufacturing industry, the requirements for asphalt grinding discs are getting higher and higher, and the frequency of use and wear rate of asphalt grinding discs are also increasing. However, in the actual production process, the problem of the inability to identify the damage of asphalt grinding discs in time is common in current technology. Since the damaged grinding disc cannot be identified in time, problems such as unstable quality and slow processing speed may occur during the processing, resulting in a significant decrease in production efficiency; a damaged grinding disc will increase the surface roughness of the processed workpiece and reduce the dimensional accuracy; continuing to use a damaged grinding disc may aggravate the wear of the lens, increase the processing cost, and even cause the lens to be scrapped; if the damaged grinding disc is not replaced in time, accidents may occur during the processing, such as the grinding disc breaking or flying out, posing a safety threat to operators and equipment; the failure to identify the damaged grinding disc in time may lead to interruptions in the production process, affecting the execution of the production plan and the guarantee of the delivery date; relying on manual regular inspection of the grinding disc status is not only inefficient, but also requires a large amount of human resources, increases labor costs, and lacks real-time performance, making it difficult to detect and deal with the damage of the grinding disc at the first time. Summary of the invention

[0003] In view of this, the present invention is directed to an asphalt processing grinding head, which can determine whether the grinding head is damaged by short-circuiting the electrodes.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] An 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 to transmit electricity. The electrode is located on the lower surface of the grinding disc, and the positive and negative poles of the electrode are respectively connected to the positive and negative poles of the conductive slide rail to achieve power transmission. The asphalt grinding plate is installed on the lower surface of the grinding disc to cover and protect the exposed part of the electrode.

[0006] Furthermore, the base material of the electrode is polyimide, the electrode is glued to the lower surface of the grinding disc, and the outer surface of the electrode is coated with a layer of oxygen-free copper.

[0007] Furthermore, the electrode includes a first arc piece and a second arc piece that are adapted to each other, and a first strip piece group and a second strip piece group composed of first strip pieces of different lengths are evenly spaced on the inner surfaces of the arcs of the first arc piece and the second arc piece, and the outer contours of the first strip piece group and the second strip piece group are both circular; after the first strip piece group and the second strip piece group are interlaced in an alternating manner, the first arc piece and the second arc piece form a circular disk with openings at both ends, and the spacing between each adjacent first strip piece and second strip piece is equal; a first connecting piece and a second connecting piece are respectively extended from one end on the same side of the first arc piece and the second arc piece, and the first connecting piece and the second connecting piece are respectively connected to the positive and negative poles of the conductive slide rail.

[0008] Furthermore, the thicknesses of the first arc sheet, the second arc sheet, the first strip sheet group and the second strip sheet group are all equal, and the thickness is 0.05mm-0.2mm.

[0009] Furthermore, the width of each strip-shaped sheet is 0.2 mm-0.5 mm; the distance between two adjacent strip-shaped sheets is 0.2 mm-0.7 mm.

[0010] Compared with the prior art, the invention can achieve the following beneficial effects:

[0011] 1) The damaged grinding head can be identified quickly and accurately through the short circuit of the electrode, avoiding omissions and errors in manual inspection, thereby greatly improving production efficiency.

[0012] 2) Automatically identify damaged grinding heads to reduce equipment wear caused by damaged grinding discs, thereby extending equipment life and reducing maintenance costs.

[0013] 3) By automatically identifying damaged grinding heads and replacing damaged grinding discs in a timely manner, the surface roughness and dimensional accuracy of the processed workpieces are guaranteed, thereby improving product quality.

[0014] 4) It also provides higher safety through automatic identification of damaged grinding heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 is a schematic structural diagram of an asphalt processing grinding head provided according to an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of the structure of a grinding disc and an electrode provided according to an embodiment of the present invention;

[0018] Figure 3Schematic diagram of the structure of an electrode provided according to an embodiment of the present invention.

[0019] Explanation of the reference numerals: 1. grinding disc; 2. electrode; 21. first arc piece; 22. second arc piece; 23. first strip piece group; 24. second strip piece group; 25. first connecting piece; 26. second connecting piece; 3. conductive slide rail; 4. asphalt grinding plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the invention more clear, the invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the invention and do not constitute a limitation of the invention.

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1 , Figure 2As shown, an asphalt processing grinding head provided by an embodiment of the present invention includes 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 electricity; 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 the transmission of electricity; 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.

[0026] As one of the core processes in the field of optical manufacturing, the precision and stability of grinding head processing technology are directly related to the optical performance of the final product. In this precision process, the selection of polishing liquid is particularly critical. Commonly used solutions include cerium oxide, aluminum oxide, silicon oxide, etc., which not only have excellent polishing performance, but also show good conductive properties. In contrast, the surface of the grinding disc of the grinding head is made of asphalt material, which exhibits excellent insulation properties at room temperature, providing a stable base for the processing process.

[0027] However, in actual production, the grinding head faces the risk of fragmentation due to multiple factors such as friction and wear, improper human operation and differences in asphalt materials. In order to effectively monitor and prevent the breakage of the grinding head, the present invention combines the insulating properties of asphalt with the conductive properties of the polishing liquid. An electrode is connected to the bottom of the grinding disc, in the area that is in direct contact with the asphalt grinding plate. By utilizing the excellent adhesion and viscosity of the asphalt itself, the heated and softened asphalt is tightly attached to the flexible electrode, and it is naturally cooled and solidified to room temperature, thereby achieving a firm bond between the electrode 2 and the grinding disc 1. During the processing, once the grinding head is broken due to various reasons, the polishing liquid will quickly penetrate into the cracked grinding disc and directly contact the electrode. Since the polishing liquid has good conductivity, this contact immediately causes a short circuit between the electrodes 2. By monitoring this short-circuit signal, the system can instantly and accurately identify the damage state of the grinding head, and thus respond quickly, such as stopping for inspection, replacing the grinding head, etc., effectively avoiding further damage caused by the breakage of the grinding head, and ensuring the continuous and stable operation of the production line and the continuous improvement of product quality.

[0028] Furthermore, the base material of the electrode 2 is polyimide, the electrode 2 is glued to the lower surface of the grinding disc 1, and the outer surface of the electrode 2 is coated with a layer of oxygen-free copper.

[0029] 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 base material of electrode 2 can ensure that the electrode can maintain stable performance in harsh environments such as high temperature, high humidity and high pressure.

[0030] Oxygen-free copper (Oxygen-Free Copper, OFC) is a high-purity copper material with excellent electrical conductivity and good processing properties. Coating a layer of oxygen-free copper on the outer surface of the electrode 2 can significantly improve the electrode's electrical conductivity, reduce resistance loss, and enhance the electrode's wear resistance and corrosion resistance. In addition, the coating of oxygen-free copper can also prevent the electrode from chemically reacting with asphalt or other media during processing, thereby extending the service life of the electrode.

[0031] like Figure 3 As shown, the electrode 2 includes a first arc piece 21 and a second arc piece 22 that are matched with each other. A first strip piece group 23 and a second strip piece group 24 of strip pieces of different lengths are evenly spaced on the inner surfaces of the arcs of the first arc piece 21 and the second arc piece 22. The outer contours of the first strip piece group 22 and the second arc piece 22 are both circular; the first strip group 23 and the second strip group 24 are crossed in an alternating manner, and after crossing, the first arc piece 21 and the second arc piece 22 form a disk with openings at both ends, and the spacing between each adjacent first strip piece and second strip piece is equal; a first connecting piece 25 and a second connecting piece 26 are respectively extended from one end on the same side of the first arc piece 21 and the second arc piece 22, and the first connecting piece 25 and the second connecting piece 26 are respectively connected to the positive and negative electrodes of the conductive slide rail 3.

[0032] The first arc sheet 21 and the second arc sheet 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 that the electrode fits tightly with the grinding disc. At the same time, the first strip sheet group 23 and the second strip sheet group 24 arranged on the inner surface of the arc not only increase the surface area of ​​the electrode 2, but also reduce resistance and improve conductive efficiency by providing more current paths.

[0033] The first strip sheet group 23 and the second strip sheet group 24 are interlaced in an alternating manner, and this design helps to evenly distribute the current and reduce the occurrence of local overheating. At the same time, it also increases the stability of the electrode 2 structure and makes it more wear-resistant.

[0034] The crossed first arc piece 21 and the second arc piece 22 form a disc-shaped structure with openings at both ends. This structure is conducive to heat dissipation because the disc-shaped structure can provide a larger heat dissipation area, and the opening design can promote air circulation and help take away heat.

[0035] A first connecting piece 25 and a second connecting piece 26 are respectively extended from one end on the same side of the first arc piece 21 and the second arc piece 22, and the two connecting pieces are respectively connected to the positive and negative electrodes of the conductive slide rail 3. This design ensures a reliable connection between the electrode 2 and the conductive slide rail 3, so that the current can be smoothly transmitted to the electrode 2.

[0036] Since the electrode 2 is made of materials with excellent electrical conductivity, such as oxygen-free copper, and a complex strip sheet group structure is designed to increase the surface area and current path, the electrode 2 will have good electrical conductivity.

[0037] The above design of electrode 2 has the following advantages:

[0038] Wear resistance: The choice of polyimide substrate material provides good wear resistance for the electrode 2, enabling it to withstand greater friction and wear during asphalt processing.

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

[0040] Efficient heat dissipation: The disc-shaped structure and opening design give the electrode good heat dissipation performance, which helps to keep the temperature of the electrode stable during processing, improve processing efficiency and product quality.

[0041] Furthermore, the thicknesses of the first arc piece 21, the second arc piece 22, the first strip piece group 23 and the second strip piece group 24 are all equal, and the thickness is 0.05 mm-0.2 mm.

[0042] Furthermore, the width of each strip-shaped piece is 0.2mm-0.5mm; and the distance between two adjacent strip-shaped pieces is 0.2mm-0.7mm.

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

[0044] A method for automatically identifying damage of an asphalt processing grinding head is implemented using the above-mentioned asphalt processing grinding head, comprising the following steps:

[0045] S1. Power on the electrode 2 and the conductive rail 3.

[0046] S2. The control circuit monitors the short-circuit signal in the circuit at a frequency of once every 0.5 seconds.

[0047] S3. When the signal processor identifies a circuit short circuit signal, the signal processor increases the monitoring frequency to once every 0.1 seconds.

[0048] S4. When the signal processor identifies the short-circuit signal more than 4 times at the increased monitoring frequency, the system determines that the grinding disc is damaged based on the monitored short-circuit signal.

[0049] S5. The signal processor sends a stop signal to the control device to stop the operation of the grinding disc and sends out an alarm signal.

[0050] S6. When the short-circuit signal identified by the signal processor in step S4 does not exceed 4 times, the control circuit will readjust the monitoring frequency to once every 0.5s and repeat steps S3-S6 to continuously monitor the status of the grinding disc.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0052] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding head for asphalt processing, characterized in that: It includes a grinding disc, an electrode, a conductive slide rail and an asphalt grinding plate, wherein the conductive slide rail is located on the upper surface of the grinding disc and is used to transmit electricity; the electrode is located on the lower surface of the grinding disc, and the positive and negative electrodes of the electrode are respectively connected to the positive and negative electrodes of the conductive slide rail to achieve power transmission; The asphalt grinding plate is mounted on the lower surface of the grinding disc to cover and protect the exposed portion of the electrode.

2. The asphalt processing grinding head according to claim 1, characterized in that: The base material of the electrode is polyimide, the electrode is glued to the lower surface of the grinding disc, and the outer surface of the electrode is coated with a layer of oxygen-free copper.

3. The asphalt processing grinding head according to claim 2, characterized in that: The electrode includes a first arc piece and a second arc piece that are matched with each other. A first strip piece group and a second strip piece group composed of strip pieces of different lengths are evenly spaced on the inner surfaces of the arcs of the first arc piece and the second arc piece, and the outer contours of the first strip piece group and the second strip piece group are both circular; the first strip piece group and the second strip piece group are interlaced in an alternating manner, and the first arc piece and the second arc piece form a disk with openings at both ends, and the spacing between each adjacent first strip piece and the second strip piece is equal; a first connecting piece and a second connecting piece are respectively extended from one end on the same side of the first arc piece and the second arc piece, and the first connecting piece and the second connecting piece are respectively connected to the positive and negative poles of the conductive slide rail.

4. The asphalt processing grinding head according to claim 3, characterized in that: The thickness of the first arc piece, the second arc piece, the first strip piece group and the second strip piece group are all equal, and the thickness is 0.05mm-0.2mm.

5. The asphalt processing grinding head according to claim 4, characterized in that: The width of each strip-shaped piece is 0.2mm-0.5mm; the distance between two adjacent strip-shaped pieces is 0.2mm-0.7mm.

Images