Spherical surface milling and grinding machine with grinding surface cooling mechanism
By designing an annular tube and multi-angle spray heads on a spherical milling machine, combined with a semiconductor cooler and circulation system, the problems of uneven cooling and waste were solved, achieving uniform cooling and efficient processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-31
AI Technical Summary
The cooling systems of existing spherical milling machines are difficult to achieve uniform cooling, resulting in uneven temperature distribution on the workpiece surface, which can easily lead to thermal deformation and reduced machining accuracy, while also causing serious waste of coolant.
A spherical milling machine with a grinding surface cooling mechanism was designed. It uses an annular pipe and multi-angle spray heads, combined with a semiconductor cooler and a circulation system, to achieve uniform spraying and reuse of coolant.
It achieves uniform cooling of the workpiece surface, reduces thermal deformation and machining errors, improves machining efficiency and quality, and at the same time reduces coolant waste, energy consumption and maintenance costs.
Smart Images
Figure CN224059437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spherical milling machine technology, specifically a spherical milling machine equipped with a grinding surface cooling mechanism. Background Technology
[0002] Spherical milling machines are high-efficiency processing equipment for spherical optical parts. They are mainly used for milling optical lenses. When existing spherical milling machines mill lenses, the lens to be processed is first clamped on the fixture of the processing table, and then the surface of the lens is milled using a milling head.
[0003] In the prior art, when a spherical milling machine is in use, the friction between the grinding surface and the workpiece generates high temperatures. Therefore, during the grinding process, coolant is needed to cool the mill and the workpiece. Traditional spherical milling machine cooling systems usually use fixed coolant nozzles, which are usually set in a fixed direction or require multiple sets of nozzles to be used in combination.
[0004] However, the design of fixed nozzles or grouped nozzles makes it difficult to achieve uniform coolant spraying, resulting in uneven temperature distribution on the workpiece surface, which can easily lead to thermal deformation, reduced machining accuracy, and shortened tool life. In addition, when existing spherical milling machines are cooling, the coolant used will directly flow from the workpiece and grinding wheel surface, resulting in a large amount of coolant waste. Utility Model Content
[0005] The purpose of this invention is to provide a spherical milling machine with a grinding surface cooling mechanism to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a spherical milling machine with a grinding surface cooling mechanism, comprising: a processing table, a through hole on the upper surface of the processing table, a clamping assembly on the upper side of the through hole, an annular tube on the upper side of the clamping assembly, a spray head fixedly installed on the inner ring surface of the annular tube, one side of the outer ring surface of the annular tube being fixedly connected to one end of a telescopic hose, the other end of the telescopic hose being connected to a liquid storage tank through a pump body, a semiconductor cooler fixedly installed at the bottom of the liquid storage tank, and an adjustment assembly on the other side of the outer ring surface of the annular tube;
[0007] The adjustment assembly includes a connecting frame, one end of which is fixedly connected to the annular tube, and the other end of which is threaded onto a threaded rod. The upper and lower ends of the threaded rod are respectively rotatably fitted into the limiting plate and the frame.
[0008] Preferably, a cylinder is fixedly installed on the top surface of the frame, the output end of the cylinder passes through the frame and is fixedly connected to the top of the fixed frame, and a small motor is fixedly installed vertically downward inside the fixed frame, with a milling head fixedly connected to the output end of the small motor.
[0009] Preferably, the clamping assembly includes a limiting ring, the lower surface of which is fixedly connected to the processing table, and an adjusting rod is threaded into the inner thread of the limiting ring. The adjusting rod is arranged in a circumferential array, and an arc-shaped pressure plate is fixedly connected to one end of the adjusting rod.
[0010] Preferably, the annular tube is hollow, with one side of the outer ring surface of the annular tube fixedly connected to one end of the telescopic hose, and the other end of the telescopic hose connected to the output end of the pump body through a connecting pipe. The input end of the pump body is connected to the bottom of the liquid storage tank through a suction pipe, and the pump body and the liquid storage tank are fixedly connected.
[0011] Preferably, a filter plate is fixedly installed inside the liquid storage tank. The filter plate is arranged at an angle, and a sealing insert is provided on one side of the filter plate. The sealing insert is slidably inserted into the liquid storage tank, and one side of the outer wall of the liquid storage tank is fixedly connected to a limiting plate.
[0012] Preferably, a limiting rod is fixedly connected between the upper surface of the limiting plate and the top of the frame, one side of the connecting frame is slidably sleeved on the limiting rod, and a large motor is fixedly installed on the lower surface of the limiting plate, with the output end of the large motor fixedly connected to the bottom of the threaded rod.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The ring pipe design expands the spray range of the coolant, achieving uniform cooling through multi-angle spraying, avoiding local overheating, reducing workpiece thermal deformation and machining errors, and improving machining efficiency and quality.
[0015] 2. The coolant flows back to the storage tank through the through hole on the processing table, and is reused after being filtered by the filter plate, reducing coolant waste. At the same time, the efficient cooling design of the semiconductor cooler reduces energy consumption, which is in line with the concept of green manufacturing.
[0016] 3. The adjustable height design of the annular tube can adapt to the needs of workpieces of different heights and shapes. At the same time, the optimized equipment structure reduces maintenance costs and difficulties, and improves the stability and reliability of the system. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a top view of the overall structure of this utility model;
[0019] Figure 3 This is a bottom view of the overall structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the internal structure of this utility model.
[0021] In the diagram: 1. Processing table; 2. Through hole; 3. Ring pipe; 4. Spray head; 5. Telescopic hose; 6. Pump body; 7. Liquid storage tank; 8. Semiconductor cooler; 9. Connecting frame; 10. Threaded rod; 11. Limiting plate;
[0022] 12. Frame; 13. Cylinder; 14. Fixing frame; 15. Milling head; 16. Limit ring; 17. Adjusting rod;
[0023] 18. Arc-shaped pressure plate; 19. Filter plate; 20. Sealing insert plate; 21. Limiting rod; 22. Large motor. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a spherical milling machine with a grinding surface cooling mechanism, comprising: a processing table 1, used for placing workpieces; through holes 2 are provided on the upper surface of the processing table 1, and the through holes 2 are arranged in a linear array to facilitate the downward flow and collection of coolant; a clamping assembly is provided on the upper side of the through holes 2 to facilitate clamping and fixing of the workpiece; an annular tube 3 is provided on the upper side of the clamping assembly; a spray head 4 is fixedly installed on the inner surface of the annular tube 3; one side of the outer surface of the annular tube 3 is fixedly connected to one end of a telescopic hose 5; the other end of the telescopic hose 5 is connected to a liquid storage tank 7 through a pump body 6; and a spray head 4 is fixedly installed at the bottom of the liquid storage tank 7. The semiconductor cooler 8 consists of a screw compressor, an evaporator, and a condenser connected sequentially by copper tubes to form a loop structure. The copper tubes are filled with refrigerant and are located at the bottom of the liquid receiver 7. An adjustment component is provided on the other side of the outer surface of the annular tube 3. The height of the annular tube 3 can be easily adjusted by the adjustment component. The adjustment component includes a connecting frame 9. One end of the connecting frame 9 is fixedly connected to the annular tube 3, and the other end of the connecting frame 9 is threaded onto a threaded rod 10. The upper and lower ends of the threaded rod 10 are respectively rotatably fitted into a limiting plate 11 and a frame 12. The limiting plate 11 and the frame 12 together limit the threaded rod 10, thereby improving its stability during rotation.
[0026] The workpiece is placed on the machining table 1 and clamped and fixed by the clamping components on the machining table 1, which facilitates stability during subsequent processing. During processing, in order to achieve comprehensive cooling of the grinding surface and uniform spraying of coolant, an annular pipe 3 is set. The inner ring of the annular pipe 3 is arranged with several spray heads 4. By starting the pump body 6, the coolant at the bottom of the storage tank 7 is drawn out and pumped into the annular pipe 3 through the connection of the telescopic hose 5, and then sprayed out through the spray heads 4, thereby achieving multi-angle cooling and improving the uniformity of spraying. At the same time, by indirectly driving the threaded rod 10 to rotate, the threaded rod 10 drives the connecting frame 9 to move up and down along its axis, and the connecting frame 9 can drive the annular pipe 3 to move up and down, adjusting the spray position. On the one hand, it can adapt to the needs of workpieces of different heights or shapes, and on the other hand, it can help reduce the temperature gradient on the workpiece surface and avoid thermal deformation or processing errors caused by local high temperature. The sprayed coolant flows back into the storage tank 7 through the through hole 2, which is conducive to the recycling of coolant and avoids the direct loss of coolant and the resulting waste.
[0027] Example 2: Based on Example 1, a cylinder 13 is fixedly installed on the top surface of the frame 12. The output end of the cylinder 13 passes through the frame 12 and is fixedly connected to the top of the fixed frame 14. A small motor is fixedly installed vertically downward inside the fixed frame 14. The output end of the small motor is fixedly connected to the milling head 15. The frame 12 provides fixed support for the cylinder 13. The cylinder 13 is electrically connected to an external control device. By controlling the extension and retraction of the cylinder 13, the height of the fixed frame 14 is adjusted, thereby adjusting the position of the milling head 15 to accommodate the workpiece.
[0028] The clamping assembly includes a limiting ring 16, the lower surface of which is fixedly connected to the processing table 1. An adjusting rod 17 is threaded into the limiting ring 16 and arranged in a circular array. One end of the adjusting rod 17 is fixedly connected to an arc-shaped pressure plate 18. The limiting ring 16 initially limits the workpiece. By twisting the adjusting rod 17, the adjusting rod 17 can move laterally within the limiting ring 16, thereby facilitating adjustment during the workpiece clamping and fixing process.
[0029] Example 3: Based on Example 2, the annular pipe 3 is hollow to facilitate the flow of water. One side of the outer ring of the annular pipe 3 is fixedly connected to one end of the telescopic hose 5. The other end of the telescopic hose 5 is connected to the output end of the pump body 6 through a connecting pipe. The input end of the pump body 6 is connected to the bottom of the storage tank 7 through a suction pipe. The pump body 6 and the storage tank 7 are fixedly connected. The pump body 6 is electrically connected to an external terminal control device. A filter plate 19 is fixedly installed inside the storage tank 7. The filter plate 19 filters the returning coolant. The filter plate 19 is arranged at an angle to facilitate the collection of filter residue. A sealing insert 20 is provided on one side of the filter plate 19 for sealing. The insert plate 20 is slidably inserted into the liquid storage tank 7. By disassembling the sealing insert plate 20, it is convenient to clean the filter residue on the filter plate 19 after a period of time, thereby avoiding the clogging of the filter plate 19. One side of the outer wall of the liquid storage tank 7 is fixedly connected to the limiting plate 11. The upper surface of the limiting plate 11 is fixedly connected to the top of the frame 12 with a limiting rod 21. One side of the connecting frame 9 is slidably sleeved on the limiting rod 21. The limiting rod 21 limits the connecting frame 9, thereby improving its stability during movement. A large motor 22 is fixedly installed on the lower surface of the limiting plate 11. The large motor 22 is electrically connected to the external terminal control equipment. The output end of the large motor 22 is fixedly connected to the bottom of the threaded rod 10.
[0030] In actual use, coolant is first poured into the bottom of the reservoir 7. The workpiece is placed in the limiting ring 16 on the processing table 1. Then, by twisting the adjusting rod 17, which is threadedly connected to the limiting ring 16, the adjusting rod 17 moves closer to the workpiece until the arc-shaped pressure plate 18 abuts against the workpiece, thus limiting and fixing the workpiece. Then, the control cylinder 13 drives the fixing frame 14 to move, which in turn drives the milling head 15 to move, thereby adjusting the height of the milling head 15, which facilitates the processing of the workpiece. During workpiece machining, the friction between the grinding surface of the milling head 15 and the workpiece generates high temperatures. At this time, the pump body 6 is activated, drawing coolant from the bottom of the storage tank 7 through a suction pipe. The coolant is then pumped into the annular pipe 3 via a connecting pipe and a telescopic hose 5. Finally, it is sprayed out through the spray nozzles 4 arranged in a circular array on the annular pipe 3, thereby cooling the grinding surface of the milling head 15 and the workpiece, improving the uniformity of coolant spraying. The sprayed coolant flows downwards through the through-holes 2 on the surface of the machining table 1, passing through the filter plate 19. After filtration, the coolant flows back to the bottom of the liquid storage tank 7. A semiconductor cooler 8 is installed at the bottom of the liquid storage tank 7. The semiconductor cooler 8 consists of a screw compressor, an evaporator, and a condenser connected in sequence by copper pipes to form a loop structure. The copper pipes are filled with refrigerant. The refrigerant is compressed into vapor in the screw compressor and then condensed by the condenser. The condensed refrigerant then passes through the evaporator to evaporate. During the evaporation process, it absorbs heat from the surrounding environment, thereby lowering the temperature of the surrounding air. At the same time, the refrigerant rapidly exchanges heat with the cooling water at the bottom of the liquid storage tank 7 through the copper pipes, and the refrigerant vapor after absorbing heat is then compressed by the compressor, thus completing a cycle. This achieves repeated cooling of the coolant and improves the cooling effect. While the spray head 4 sprays the coolant, the large motor 22 is started by controlling the motor 22 to drive the threaded rod 10 to rotate. The rotation of the threaded rod 10 drives the connecting frame 9 installed on it to move longitudinally under the limit of the limit rod 21, thereby adjusting the position of the sprayed coolant and further improving the cooling efficiency.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spherical surface milling and grinding machine provided with a grinding surface cooling mechanism, comprising a processing table (1), characterized in that: The upper surface of the processing table (1) is provided with a through hole (2), the upper side of the through hole (2) is provided with a clamping assembly, the upper side of the clamping assembly is provided with an annular pipe (3), the inner ring surface of the annular pipe (3) is fixedly installed with a shower head (4), one side of the outer ring surface of the annular pipe (3) is fixedly connected with one end of a flexible hose (5), the other end of the flexible hose (5) is communicated with a liquid storage tank (7) through a pump body (6), the bottom of the liquid storage tank (7) is fixedly installed with a semiconductor refrigerator (8), the other side of the outer ring surface of the annular pipe (3) is provided with an adjusting assembly. The adjusting assembly comprises a connecting frame (9), one end of the connecting frame (9) is fixedly connected with the annular pipe (3), the other end of the connecting frame (9) is threadedly sleeved on a threaded rod (10), and the upper and lower ends of the threaded rod (10) are rotatably sleeved in a limiting plate (11) and a rack (12) respectively.
2. The spherical surface milling and grinding machine with a grinding surface cooling mechanism according to claim 1, characterized in that: The top surface of the rack (12) is fixedly installed with an air cylinder (13), the output end of the air cylinder (13) penetrates through the rack (12) and is fixedly connected with the top of a fixed frame (14), a small motor is fixedly installed vertically downward in the fixed frame (14), and the output end of the small motor is fixedly connected with a milling head (15).
3. The spherical surface milling and grinding machine with a grinding surface cooling mechanism according to claim 1, characterized in that: The clamping assembly comprises a limiting ring (16), the lower surface of the limiting ring (16) is fixedly connected with the processing table (1), the limiting ring (16) is threadedly sleeved with an adjusting rod (17), and the adjusting rod (17) is arranged in a circumferential array, one end of the adjusting rod (17) is fixedly connected with an arc-shaped pressing plate (18).
4. The spherical surface milling and grinding machine with a grinding surface cooling mechanism according to claim 1, characterized in that: The annular pipe (3) is hollow, one end of the flexible hose (5) is fixedly connected with one side of the outer ring surface of the annular pipe (3), the other end of the flexible hose (5) is communicated with the output end of the pump body (6) through a connecting pipe, the input end of the pump body (6) is communicated with the bottom of the liquid storage tank (7) through a suction pipe, and the pump body (6) and the liquid storage tank (7) are fixedly connected.
5. The spherical surface milling machine with a grinding surface cooling mechanism according to claim 4, characterized in that: A filter plate (19) is fixedly installed in the liquid storage tank (7), the filter plate (19) is arranged obliquely, a sealing plug plate (20) is arranged on one side of the filter plate (19), the sealing plug plate (20) is slidably inserted between the liquid storage tank (7), and one side of the outer wall of the liquid storage tank (7) is fixedly connected with the limiting plate (11).
6. The spherical surface milling machine with a grinding surface cooling mechanism according to claim 5, characterized in that: A limiting rod (21) is fixedly connected between the upper surface of the limiting plate (11) and the top of the rack (12), one side of the connecting frame (9) is slidably sleeved on the limiting rod (21), and a large motor (22) is fixedly installed on the lower surface of the limiting plate (11), and the output end of the large motor (22) is fixedly connected with the bottom of the threaded rod (10).