Grinding and polishing device with dual-mode automatic supply and working method

Abstract

The invention provides a grinding and polishing device with a dual-mode automatic supply function and a working method, and belongs to the technical field of grinding and polishing equipment. The problems that in the prior art, one operator cannot complete operation independently, a cooling / polishing agent cannot be supplied continuously, cooling is uneven, the polishing agent cannot fully act on the position to be detected, and operation is interrupted are solved. The device comprises a supplied liquid storage device, a spraying control device, a head shell, a grinding and polishing mechanism and a machine body, the spraying control device comprises a sleeve, a water pump, a flow regulating valve and a controller, the upper layer of the sleeve is in threaded connection with the spraying control device, and the controller and the flow regulating valve are sequentially arranged on a liquid inlet pipe in the liquid flowing direction. The output end of the liquid inlet pipe communicates with the lower layer of the sleeve, the grinding and polishing mechanism comprises a grinding and polishing disc, a temperature sensing system and grinding and polishing consumables, the grinding and polishing disc is connected with the output mechanism in the head shell, and the temperature sensing system is arranged on the lower end face of the grinding and polishing disc. The device is mainly used for on-site grinding and polishing of equipment in the electric power and petrochemical industry in the installation, service or repair process.

Description

Technical Field

[0001] This invention belongs to the technical field of grinding and polishing equipment, and in particular relates to a grinding and polishing device and its working method with dual-mode automatic supply. Background Technology

[0002] In the power and petrochemical industries, during the installation, service, or repair of metal equipment, in order to achieve the purpose of testing without damaging the integrity of the equipment, it is often necessary to conduct on-site hardness or on-site metallographic testing on the base material or welded joints of components such as containers, pipes, and forgings, rather than sampling and testing.

[0003] On-site hardness or metallographic testing requires an operator to hold an angle grinder to grind / grind and polish the area to be inspected. The high-density heat generated during the grinding process can easily cause the hardness of the area to increase or the structure to become abnormal, which seriously interferes with the judgment of the test results. Generally, an additional operator is needed to assist in cooling / polishing agent spraying. However, this working mode has problems such as one operator not being able to complete the work independently, the cooling / polishing agent not being able to be continuously supplied, uneven cooling, the polishing agent not being able to fully act on the area to be inspected, and operation interruption. Summary of the Invention

[0004] In view of this, the present invention aims to propose a polishing device and working method with dual-mode automatic supply, in order to solve the problems in the prior art such as one operator being unable to complete the work independently, the inability to continuously supply cooling / polishing agent, uneven cooling, the inability of polishing agent to fully act on the inspection position, and operation interruption, thereby improving the accuracy, quality and efficiency of on-site hardness / metallographic inspection.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A grinding and polishing device with dual-mode automatic supply includes a liquid supply storage device, a spray control device, a head shell, a grinding and polishing mechanism, and a body. The liquid supply storage device is threadedly connected to the spray control device at its lower end. The spray control device is threadedly connected to the head shell at its lower end. The head shell is threadedly connected to the grinding and polishing mechanism at its lower end. The body is mounted on the side of the head shell. The spray control device includes a sleeve, a water pump, a flow regulating valve, and a controller. The upper layer of the sleeve is threadedly connected to the spray control device. The water pump is connected to the upper layer of the sleeve through an inlet pipe. The controller and the flow regulating valve are sequentially arranged on the inlet pipe along the liquid flow direction. The output end of the inlet pipe is connected to the lower layer of the sleeve. The grinding and polishing mechanism includes a grinding and polishing disc, a temperature sensing system, and grinding and polishing consumables. The grinding and polishing disc is connected to an output mechanism inside the head shell. The grinding and polishing consumables are installed below the grinding and polishing disc. The lower end face of the grinding and polishing disc is provided with a temperature sensing system.

[0006] Furthermore, a main shaft is installed inside the head shell. The main shaft has a hollow structure, and gears are installed on the outside of the main shaft. A lower cover is installed below the head shell, and the polishing disc is connected to the main shaft.

[0007] Furthermore, the lower cover is fixed to the head shell by screws.

[0008] Furthermore, a control system is installed inside the machine body, which supplies power to the controller and provides power for the rotation of the gears.

[0009] Furthermore, a main shaft lock is provided on the top of the head shell.

[0010] Furthermore, the head shell has round holes on both sides, one of which is fitted with a handle.

[0011] Furthermore, a protective cover is installed above the polishing disc, and the protective cover is connected to the lower cover. The protective cover is made of metal.

[0012] Furthermore, multiple spray holes are evenly distributed below the polishing disc.

[0013] Furthermore, both the sleeve and the liquid supply storage device are made of PET material.

[0014] A method for operating a polishing device with dual-mode automatic feeding, comprising the following steps: Step 1: Inject coolant / polishing agent into the supply liquid storage device, then assemble the polishing device and check the tightness of the connection; Step 2: Select different polishing consumables according to the material, surface condition and inspection requirements of the location to be inspected, and install the polishing consumables with the polishing disc; Step 3: Start the control system to drive the gears to rotate, so that the spindle drives the grinding and polishing disc to rotate, and grind / polish the area to be inspected; Step 4: During the grinding / polishing process, observe the consumption of the supply fluid. If the supply fluid is insufficient, stop working, replenish the supply fluid, and continue working until all grinding / polishing work is completed.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention combines grinding and polishing operations with cooling / polishing agent supply functions, completely changing the traditional mode that requires two operators to work together. Only one operator is needed to complete the entire operation process independently, which greatly saves human resources and reduces the labor cost of on-site inspection. It is especially suitable for occasions with limited working space.

[0016] 2. This invention monitors the working surface temperature in real time through a temperature sensing system installed on the grinding and polishing device, and the controller automatically adjusts the water pump and flow regulating valve to control the flow of coolant. This effectively avoids the problems of uneven and untimely cooling that exist in traditional manual spraying methods, and fundamentally prevents the increase in surface hardness or metallographic changes of the workpiece due to overheating during grinding and polishing, thereby greatly improving the accuracy of on-site hardness and on-site metallographic inspection results.

[0017] 3. The present invention can provide a continuous, stable and direct liquid flow to the grinding and polishing points according to process requirements, whether it is the grinding stage that requires continuous cooling or the polishing stage that requires uniform wetting, thus ensuring the sufficiency and consistency of cooling or polishing effects. Attached Figure Description

[0018] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a front view of a polishing device with dual-mode automatic supply according to the present invention. Figure 2 This is a schematic diagram of the structure of a grinding and polishing device with dual-mode automatic supply according to the present invention. Figure 3 This is a cross-sectional view of the spray control device described in this invention; Figure 4 This is a front view of the head shell structure described in this invention; Figure 5 This is a left view of the head shell structure described in this invention; Figure 6 This is a top view of the head shell structure described in this invention; Figure 7 This is a left view of the polishing mechanism described in this invention; Figure 8 This is a schematic diagram showing the locations of the holes in the polishing disc and the temperature sensor.

[0019] In the picture: 1-Liquid supply storage device, 2-Spray control device, 21-Sleeve, 22-Water pump, 23-Flow regulating valve, 24-Controller, 3-Head housing, 31-Main shaft, 32-Gear, 33-Lower cover, 34-Screw, 35-Main shaft lock, 36-Handle, 4-Grinding and polishing mechanism, 41-Grinding and polishing disc, 42-Temperature sensing system, 43-Grinding and polishing consumables, 44-Protective cover, 5-Machine body. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0021] Detailed Implementation Method 1: See Figure 1-8 This embodiment describes a grinding and polishing device with dual-mode automatic supply, characterized by comprising a supply liquid storage device 1, a spray control device 2, a head shell 3, a grinding and polishing mechanism 4, and a machine body 5. The supply liquid storage device 1 is threadedly connected to the spray control device 2 at its lower end, the spray control device 2 is threadedly connected to the head shell 3 at its lower end, and the head shell 3 is threadedly connected to the grinding and polishing mechanism 4 at its lower end. The machine body 5 is mounted on the side of the head shell 3. The spray control device 2 includes a sleeve 21, a water pump 22, a flow regulating valve 23, and a controller 24. The upper layer of the sleeve 21 is threadedly connected to the spray control device 2. The water pump 22 is connected to the upper layer of the sleeve 21 through the liquid inlet pipe. The liquid inlet pipe is provided with a controller 24 and a flow regulating valve 23 in sequence along the liquid flow direction. The output end of the liquid inlet pipe is connected to the lower layer of the sleeve 21. The polishing mechanism 4 includes a polishing disc 41, a temperature sensing system 42, and polishing consumables 43. The polishing disc 41 is connected to the output mechanism inside the head shell 3. The polishing consumables 43 are installed below the polishing disc 41. The lower end face of the polishing disc 41 is provided with the temperature sensing system 42.

[0022] First, inject coolant / polishing agent into the supply liquid storage device 1. Then, assemble the grinding and polishing device and check the tightness of the connection. Select different grinding and polishing consumables 43 according to the material, surface condition and inspection requirements of the position to be inspected. Install the grinding and polishing consumables 43 with the grinding and polishing disc 41. Start the control system to drive the gear 32 to rotate, so that the spindle 31 drives the grinding and polishing disc 41 to rotate, and grind / polish the position to be inspected. During the grinding / polishing process, observe the consumption of the supply liquid. If the supply liquid is insufficient, stop working, replenish the supply liquid and continue working until all grinding / polishing work is completed.

[0023] By integrating the grinding and polishing function with the liquid supply function, the system achieves an improvement from manual collaboration to automation, significantly reducing reliance on manpower. By changing the liquid in the supply liquid storage device 1, such as coolant or polishing agent, the cooling mode and polishing mode can be seamlessly switched on the same equipment, greatly improving the equipment's process adaptability and operating efficiency. The temperature sensing system 42 is set on the lower end face of the grinding and polishing disc 41, which can monitor the temperature of the grinding and polishing point in real time and accurately, providing a foundation for subsequent intelligent temperature control. This fundamentally avoids changes in the structure or increase in hardness caused by overheating of the workpiece, ensuring the accuracy of on-site inspection results.

[0024] In this embodiment, a main shaft 31 is installed inside the head shell 3. The main shaft 31 has a hollow structure. A gear 32 is installed on the outside of the main shaft 31. A lower cover 33 is installed below the head shell 3. The polishing disc 41 is connected to the main shaft 31. The hollow structure of the main shaft 31 forms the core channel for liquid to flow from the spray control device 2 to the polishing disc 41. The polishing disc 41 is connected to the main shaft 31 and is driven to rotate by the main shaft 31.

[0025] In this embodiment, the lower cover 33 is fixed to the head shell 3 by screws 34. The screw connection method is simple, reliable and easy to disassemble and maintain, ensuring the sealing and structural strength of the lower part of the head shell 3, while facilitating the inspection or replacement of internal transmission components such as gears 32. In this embodiment, a control system is provided inside the body 5. The control system supplies power to the controller 24 and provides power for the rotation of the gear 32.

[0026] In this embodiment, a spindle lock 35 is provided on the top of the head shell 3. The spindle lock 35 allows the operator to lock the spindle 31 safely and effortlessly, thereby easily installing or replacing the polishing consumables 43, which greatly improves the convenience and safety of operation.

[0027] In this embodiment, the head shell 3 has round holes on both sides, one of which is fitted with a handle 36, which is suitable for left-handed or right-handed operators, providing a stable grip point and enhancing operational stability, accuracy and comfort.

[0028] In this embodiment, a protective cover 44 is installed above the polishing disc 41. The protective cover 44 is connected to the lower cover 33. The protective cover 44 is made of metal material and can effectively block the high-speed splashing metal dust and liquid generated during the polishing process, providing crucial safety protection for the operator.

[0029] In this embodiment, multiple spray holes are evenly distributed below the polishing disc 41. The spray holes ensure that the liquid can uniformly and directly cover the entire polishing surface, solving the problem of uneven cooling or polishing that may occur with manual spraying, and significantly improving the consistency of the process effect.

[0030] In this embodiment, both the sleeve 21 and the liquid supply storage device 1 are made of PET material. PET material has the advantages of corrosion resistance, high strength, and lightweight. Using the same material for connection ensures the sealing and reliability of the connection, effectively preventing liquid leakage. Detailed Implementation Method 2: See Figure 1-8 This embodiment describes a method for operating a polishing device with dual-mode automatic supply, comprising the following steps: Step 1: Injecting coolant / polishing agent into the supply liquid storage device 1, and then assembling the polishing device and checking the tightness of the connection; Step 2: Select different polishing consumables 43 according to the material, surface condition and inspection requirements of the location to be inspected, and install the polishing consumables 43 with the polishing disc 41; Step 3: Start the control system to drive the gear 32 to rotate, so that the spindle 31 drives the grinding and polishing disc 41 to rotate, and grind / polish the position to be inspected; Step 4: During the grinding / polishing process, observe the consumption of the supply fluid. If the supply fluid is insufficient, stop working, replenish the supply fluid, and continue working until all grinding / polishing work is completed.

[0031] In step 2, based on the material, surface condition, and inspection requirements of the location to be inspected, select different polishing consumables 43, such as self-adhesive perforated sandpaper / self-adhesive polishing pads of different grits. When installing the polishing consumables 43, ensure that the consumables are aligned and tightly fitted with the polishing disc 41, and ensure the correspondence between the perforated polishing consumables 43 and the holes on the polishing disc 41 to avoid blocking the flow of the supplied liquid and affecting the cooling / polishing effect.

[0032] The specific embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A polishing device with dual-mode automatic feeding, characterized in that: The system includes a liquid supply storage device (1), a spray control device (2), a head shell (3), a polishing mechanism (4), and a machine body (5). The liquid supply storage device (1) is threadedly connected to the spray control device (2) at its lower end. The spray control device (2) is threadedly connected to the head shell (3) at its lower end. The head shell (3) is threadedly connected to the polishing mechanism (4) at its lower end. The machine body (5) is mounted on the side of the head shell (3). The spray control device (2) includes a sleeve (21), a water pump (22), a flow regulating valve (23), and a controller (24). The upper part of the sleeve (21) is connected to the spray control device. The water pump (22) is connected to the upper layer of the sleeve (21) through the inlet pipe. The inlet pipe is equipped with a controller (24) and a flow regulating valve (23) in sequence along the liquid flow direction. The output end of the inlet pipe is connected to the lower layer of the sleeve (21). The polishing mechanism (4) includes a polishing disc (41), a temperature sensing system (42), and polishing consumables (43). The polishing disc (41) is connected to the output mechanism inside the head shell (3). The polishing consumables (43) are installed below the polishing disc (41). The lower end face of the polishing disc (41) is equipped with a temperature sensing system (42).

2. The polishing device with dual-mode automatic feeding according to claim 1, characterized in that: The head shell (3) is equipped with a main shaft (31), which is a hollow structure. A gear (32) is installed on the outside of the main shaft (31). A lower cover (33) is installed below the head shell (3). The grinding and polishing disc (41) is connected to the main shaft (31).

3. A polishing device with dual-mode automatic feeding according to claim 2, characterized in that: The lower cover (33) is fixed to the head shell (3) by screws (34).

4. A polishing device with dual-mode automatic feeding according to claim 2, characterized in that: The body (5) is equipped with a control system, which supplies power to the controller (24) and provides power for the rotation of the gear (32).

5. A polishing device with dual-mode automatic feeding according to claim 2, characterized in that: A main shaft lock (35) is provided on the top of the head shell (3).

6. A polishing device with dual-mode automatic feeding according to claim 2, characterized in that: Both sides of the head shell (3) are provided with round holes, one of which is fitted with a handle (36).

7. A polishing device with dual-mode automatic feeding according to claim 2, characterized in that: A protective cover (44) is installed above the polishing disc (41). The protective cover (44) is connected to the lower cover (33). The protective cover (44) is made of metal.

8. A polishing device with dual-mode automatic feeding according to claim 1, characterized in that: Multiple spray holes are evenly distributed below the polishing disc (41).

9. A polishing device with dual-mode automatic feeding according to claim 1, characterized in that: Both the sleeve (21) and the liquid supply storage device (1) are made of PET material.

10. A method of operating the polishing device with dual-mode automatic supply as described in any one of claims 1-9, characterized in that: It includes the following steps: Step 1: Inject coolant / polishing agent into the supply liquid storage device (1), then assemble the polishing device and check the tightness of the connection; Step 2: Select different polishing consumables (43) according to the material, surface condition and inspection requirements of the location to be inspected, and install the polishing consumables (43) and polishing disc (41); Step 3: Start the control system to drive the gear (32) to rotate, so that the spindle (31) drives the polishing disc (41) to rotate, and polish the position to be inspected; Step 4: During the grinding / polishing process, observe the consumption of the supply fluid. If the supply fluid is insufficient, stop working, replenish the supply fluid, and continue working until all grinding / polishing work is completed.

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