Cooling equipment for processing martensitic stainless steel

By designing a cooling device that recycles coolant, the problems of performance degradation and tool wear caused by high temperature in the processing of martensitic stainless steel were solved, achieving efficient cooling and environmentally friendly production.

CN223663611UActive Publication Date: 2025-12-12ZHEJIANG ZHENGDA MOLD
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Patent Information

Application Number
CN202520106727.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-12
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

During the processing of martensitic stainless steel, the temperature rises due to heat accumulation, which affects the metallographic structure and tool life, reducing production efficiency and quality.

Method used

A cooling device comprising a cooling tank, a coolant tank, a spray structure, and a recovery structure was designed. The device uses recycled coolant for spray cooling and monitors the temperature in real time to adjust the spray volume, ensuring that the workpiece temperature is within a suitable range.

Benefits of technology

It effectively reduces workpiece temperature, reduces wear, extends tool life, lowers production costs, improves processing quality and efficiency, and reduces environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of stainless steel production equipment, and discloses a cooling device for processing martensitic stainless steel, which comprises a working table and supporting legs, the supporting legs are fixedly mounted at four corners of the bottom of the working table, a through groove is formed in the center of the working table, a filter plate is fixedly mounted in the groove formed in the working table, and the filter plate is fixedly mounted on the working table. A plurality of groups of through holes distributed at equal intervals are formed in the filter plate, a sliding structure is arranged at the top of the filter plate, a group of parallel and vertical fixing plates are fixedly mounted on two sides of the top of the sliding structure, through threaded holes are formed in the centers of the side surfaces of the fixing plates, and clamping structures are arranged on the fixing plates. According to the utility model, the temperature is effectively reduced, the abrasion caused by high temperature is reduced, the cutting edge of the cutter keeps good hardness and abrasion resistance in a low-temperature environment, the cutter is not easy to deform and damage, the service life of the cutter is prolonged, the replacement frequency of the cutter is reduced, and the processing cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel production equipment, specifically a cooling device for processing martensitic stainless steel. Background Technology

[0002] Martensitic stainless steel possesses advantages such as high strength, high hardness, good wear resistance, and corrosion resistance, making it widely used in numerous fields including aerospace, machinery manufacturing, medical devices, and petrochemicals. However, processing martensitic stainless steel presents several challenges, with heat-affected zones being a key factor restricting its processing quality and efficiency. During machining operations such as turning, milling, and drilling, the friction between the cutting tool and the workpiece surface generates a significant amount of heat. This heat rapidly accumulates in the machining area, causing a sharp rise in workpiece temperature. On one hand, high temperatures alter the microstructure of martensitic stainless steel. The properties of martensitic stainless steel are highly sensitive to its microstructure; high temperatures may lead to incomplete martensitic transformation or the formation of other unstable phase structures, thereby reducing the material's hardness, strength, and corrosion resistance, impacting the final quality of the workpiece. On the other hand, excessively high temperatures accelerate tool wear. Under high-temperature environments, the hardness and wear resistance of the cutting tool decrease, and the cutting edge is prone to deformation and breakage, shortening tool life, increasing processing costs and downtime, and reducing production efficiency.

[0003] In the existing process of processing martensitic stainless steel, cooling treatment is required according to requirements. Traditional martensitic stainless steel production equipment requires the use of various auxiliary equipment for cooling, which affects the production efficiency of martensitic stainless steel. Therefore, we propose a cooling device for processing martensitic stainless steel. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a cooling device for processing martensitic stainless steel, thus solving the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a cooling device for processing martensitic stainless steel, comprising a workbench and supporting legs. Supporting legs are fixedly installed at the four corners of the bottom of the workbench. A through groove is opened in the center of the workbench. A filter plate is fixedly installed in the groove. Multiple sets of equidistantly arranged through holes are opened on the filter plate. A sliding structure is provided on the top of the filter plate. A set of parallel and vertical fixing plates are fixedly installed on both sides of the top of the sliding structure. A through threaded hole is opened in the center of the side of the fixing plate. A clamping structure is provided on the fixing plate. A recycling structure is provided at the bottom of the groove on the workbench. A cooling tank is fixedly installed in the center of the top of the workbench. A cover plate is fixedly installed on the top of the cooling tank. A coolant tank is fixedly installed on one side of the top of the workbench. A coolant conveying structure is provided on the top of the coolant tank. A spraying structure is provided on the lower surface of the cover plate.

[0008] Preferably, the sliding structure includes a slide rod, a limiting rod, and a sliding table. A set of parallel slide rods is fixedly installed on the top of the filter plate. One end of the slide rod is fixedly connected to the inner side of the cover plate, and a limiting rod is fixedly installed on the other end of the slide rod. A sliding table is slidably installed on the top of the slide rod, and a set of parallel fixing plates are fixedly installed on both sides of the top of the sliding table.

[0009] Preferably, the clamping structure includes a threaded rod, a rotating handle, and a clamping block. The threaded rod is movably mounted on the side of the fixed plate and is threadedly connected to a threaded hole in the fixed plate. A rotating handle is fixedly mounted on one end of the threaded rod, and a clamping block is fixedly connected to the other end of the threaded rod. The clamping block is V-shaped.

[0010] Preferably, the recovery structure includes a coolant recovery tank, a coolant recovery pipe, and a reflux extraction pump. The coolant recovery tank is fixedly installed at the bottom of the slot opened on the workbench. The top of the coolant recovery tank is inclined. A through hole is opened at the inclined bottom inside the coolant recovery tank. The coolant recovery pipe is fixedly connected to the through hole. The other end of the coolant recovery pipe is fixedly connected to the reflux extraction pump. The bottom of the reflux extraction pump is fixedly installed on the top of the workbench.

[0011] Preferably, the coolant delivery structure includes a coolant tank, a coolant output pipe, and a coolant extraction pump. The coolant tank is fixedly installed on the top of the workbench corresponding to the side of the return extraction pump. The coolant tank is connected to the return extraction pump through a connecting pipe. The coolant output pipe is fixedly installed on the top of the coolant tank. The other end of the coolant output pipe is fixedly connected to the coolant extraction pump. The bottom of the coolant extraction pump is fixedly installed on the top of the cover plate.

[0012] Preferably, the spray structure includes a coolant spray head, spray holes, and temperature detectors. The coolant spray head is fixedly installed in the center of the lower surface of the cover plate. Multiple sets of equidistantly arranged spray holes are opened at the bottom of the coolant spray head. A set of symmetrical temperature detectors are fixedly installed on the lower surface of the cover plate corresponding to the two sides of the coolant spray head.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a cooling device for processing martensitic stainless steel, which has the following beneficial effects:

[0015] 1. This cooling equipment for processing martensitic stainless steel can recycle cutting fluid, reducing the environmental pollution caused by waste cutting fluid discharge and minimizing the health hazards of oil mist to operators. It meets environmental protection requirements, and recycling cutting fluid reduces the costs of purchasing, storing, and processing cutting fluid, while also reducing the maintenance workload of related equipment, thus achieving effective resource utilization.

[0016] 2. This cooling equipment for processing martensitic stainless steel effectively reduces temperature, minimizes wear caused by high temperatures, and ensures that the cutting edge of the tool maintains good hardness and wear resistance in low-temperature environments, making it less prone to deformation and breakage, thus extending tool life, reducing tool replacement frequency, and lowering processing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the coolant tank of this utility model;

[0019] Figure 3 This is a cross-sectional view of the cooling box of this utility model;

[0020] Figure 4 This is a schematic diagram of the coolant spray head of this utility model.

[0021] In the diagram: 1. Workbench; 2. Support leg; 3. Filter plate; 4. Slide rod; 5. Limiting rod; 6. Slide table; 7. Fixing plate; 8. Threaded rod; 9. Rotary handle; 10. Clamping block; 11. Coolant recovery tank; 12. Coolant recovery pipe; 13. Recirculation pump; 14. Cooling tank; 15. Cover plate; 16. Coolant tank; 17. Coolant output pipe; 18. Coolant extraction pump; 19. Coolant spray head; 20. Spray hole; 21. Temperature detector. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 A cooling device for processing martensitic stainless steel includes a workbench 1 with a through groove in the center. A filter plate 3 is fixedly installed in the groove of the workbench 1. The filter plate 3 has multiple sets of equidistant through holes. A sliding structure is provided on the top of the filter plate 3. A set of parallel and vertical fixing plates 7 are fixedly installed on both sides of the top of the sliding structure. A through threaded hole is provided in the center of the side of the fixing plate 7. A clamping structure is provided on the fixing plate 7. A recycling structure is provided at the bottom of the groove of the workbench 1. A cooling box 14 is fixedly installed in the center of the top of the workbench 1. A cover plate 15 is fixedly installed on the top of the cooling box 14. A coolant tank 16 is fixedly installed on one side of the top of the workbench 1. A coolant conveying structure is provided on the top of the coolant tank 16. A spray structure is provided on the lower surface of the cover plate 15.

[0024] Furthermore, the sliding structure includes a slide rod 4, a limiting rod 5, and a slide table 6. A set of parallel slide rods 4 are fixedly installed on the top of the filter plate 3. One end of the slide rod 4 is fixedly connected to the inner side of the cover plate 15, and the other end of the slide rod 4 is fixedly installed with the limiting rod 5. The slide table 6 is slidably installed on the top of the slide rod 4. A set of parallel fixing plates 7 are fixedly installed on both sides of the top of the slide table 6. When the martensitic stainless steel workpiece to be processed is placed in the cooling box 14, the sliding structure plays its role. The slide rod 4 is fixed to the top of the filter plate 3 and one end is connected to the inner side of the cover plate 15. The other end is limited by the limiting rod 5. The slide table 6 can slide on the top of the slide rod 4. The fixing plates 7 on both sides of its top move with the slide table 6. By adjusting the position of the slide table 6, the workpiece can be conveniently placed in a suitable processing area to ensure the convenience and accuracy of subsequent processing.

[0025] Furthermore, the clamping structure includes a threaded rod 8, a rotating handle 9, and a clamping block 10. The threaded rod 8 is movably mounted on the side of the fixed plate 7 and is threadedly connected to a threaded hole on the fixed plate 7. The rotating handle 9 is fixedly mounted on one end of the threaded rod 8, and the clamping block 10 is fixedly connected to the other end of the threaded rod 8. The clamping block 10 is V-shaped. The clamping structure fixes the workpiece. Specifically, rotating the rotating handle 9 causes the threaded rod 8 to rotate within the threaded hole of the fixed plate 7. Since one end of the threaded rod 8 is connected to the V-shaped clamping block 10, as the threaded rod 8 rotates, the clamping block 10 will move closer to or further away from the workpiece, thereby achieving clamping and positioning of workpieces of different sizes and ensuring the stability of the workpiece during processing.

[0026] Furthermore, the recycling structure includes a coolant recycling tank 11, a coolant recycling pipe 12, and a reflux extraction pump 13. The coolant recycling tank 11 is fixedly installed at the bottom of the slot opened on the workbench 1. The top of the coolant recycling tank 11 is inclined. A through hole is opened at the inclined bottom inside the coolant recycling tank 11. The coolant recycling pipe 12 is fixedly connected to the through hole. The other end of the coolant recycling pipe 12 is fixedly connected to the reflux extraction pump 13. The bottom of the reflux extraction pump 13 is fixedly installed on the top of the workbench 1. The filtered coolant flows into the coolant recycling tank 11 at the bottom of the slot opened on the workbench 1. Because the top of the coolant recycling tank 11 is inclined, the coolant will flow to the through hole at the bottom under the action of gravity. The coolant returns to the coolant tank 16 through the coolant recycling pipe 12 fixedly connected in the through hole under the action of the reflux extraction pump 13, realizing the recycling of coolant, reducing coolant consumption and waste, reducing production costs, and reducing environmental pollution.

[0027] Furthermore, the coolant delivery structure includes a coolant tank 16, a coolant output pipe 17, and a coolant extraction pump 18. The coolant tank 16 is fixedly installed on the top of the workbench 1, corresponding to the side of the return extraction pump 13. The coolant tank 16 is connected to the return extraction pump 13 through a connecting pipe. The coolant output pipe 17 is fixedly installed on the top of the coolant tank 16, and the other end of the coolant output pipe 17 is fixedly connected to the coolant extraction pump 18. The bottom of the coolant extraction pump 18 is fixedly installed on the top of the cover plate 15. The coolant in the coolant tank 16 is delivered to the spray structure under the action of the coolant delivery structure. The coolant extraction pump 18 is started, and the coolant in the coolant tank 16 is extracted to the top of the cover plate 15 through the coolant output pipe 17.

[0028] Furthermore, the spray structure includes a coolant spray head 19, spray holes 20, and a temperature detector 21. The coolant spray head 19 is fixedly installed in the center of the lower surface of the cover plate 15. Multiple sets of equidistantly arranged spray holes 20 are opened at the bottom of the coolant spray head 19. A set of symmetrical temperature detectors 21 are fixedly installed on the lower surface of the cover plate 15 corresponding to the two sides of the coolant spray head 19. After the coolant reaches the top of the cover plate 15, it is evenly sprayed onto the workpiece in the cooling box 14 through the multiple sets of equidistantly arranged spray holes 20 at the bottom of the coolant spray head 19. During the spraying process, the coolant absorbs the heat generated by the workpiece during processing, thereby reducing the workpiece temperature. The temperature detector 21 on the lower surface of the cover plate 15 monitors the workpiece temperature in real time. If the temperature is too high, a feedback signal can be sent to adjust the spray volume or spray frequency of the coolant to ensure the cooling effect.

[0029] Working principle: First, the martensitic stainless steel workpiece to be processed is placed in the cooling box 14. The sliding structure then comes into play. The slide rod 4 is fixed to the top of the filter plate 3, with one end connected to the inner side of the cover plate 15 and the other end having a limit rod 5. The slide table 6 can slide on top of the slide rod 4, and the fixing plates 7 on both sides of its top move with the slide table 6. By adjusting the position of the slide table 6, the workpiece can be easily placed in a suitable processing area, ensuring the convenience and accuracy of subsequent processing. Then, the workpiece is fixed using a clamping structure. Specifically, the rotating handle 9 is turned, causing the threaded rod 8 to rotate within the threaded hole of the fixing plate 7. Due to the thread... One end of the rod 8 is connected to a V-shaped clamping block 10. As the threaded rod 8 rotates, the clamping block 10 moves closer to or further away from the workpiece, thereby achieving clamping and positioning of workpieces of different sizes and ensuring the stability of the workpiece during processing. The coolant in the coolant tank 16 is transported to the spraying structure by the coolant delivery structure. The coolant extraction pump 18 is started, drawing the coolant in the coolant tank 16 through the coolant output pipe 17 to above the cover plate 15. After the coolant reaches above the cover plate 15, it is evenly sprayed onto the workpiece in the cooling box 14 through multiple sets of equidistantly arranged spray holes 20 at the bottom of the coolant spray head 19. During the spraying process... In the process, the coolant absorbs the heat generated by the workpiece during processing, thereby reducing the workpiece temperature. A temperature sensor 21 on the lower surface of the cover plate 15 monitors the workpiece temperature in real time. If the temperature is too high, a feedback signal can be sent to adjust the coolant spray volume or spray frequency to ensure the cooling effect. The coolant sprayed onto the workpiece carries impurities generated during processing onto the filter plate 3. Multiple sets of through holes on the filter plate 3 can filter out most of the impurities in the coolant, allowing relatively clean coolant to pass through. The filtered coolant flows into the coolant recovery tank 11 at the bottom of the tank in the worktable 1. Because the top of the coolant recovery tank 11 is inclined, the coolant... The coolant flows to the bottom through-hole under gravity. The coolant then returns to the coolant tank 16 through the coolant recovery pipe 12 fixedly connected inside the through-hole, under the action of the return pump 13. This achieves the recycling of coolant, reduces coolant consumption and waste, lowers production costs, and reduces environmental pollution. Throughout the entire process of processing martensitic stainless steel, the coordinated work of the above-mentioned components continuously circulates the spraying, recycling, and filtration of coolant, effectively reducing the workpiece temperature, minimizing the adverse effects of high temperature on the workpiece's metallographic structure and the cutting tool, extending the tool's service life, and improving processing quality and efficiency.

[0030] 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 cooling device for processing martensitic stainless steel, comprising a workbench (1) and support legs (2), characterized in that: Support feet (2) are fixedly installed at the four corners of the bottom of the workbench (1). A through groove is opened in the center of the workbench (1). A filter plate (3) is fixedly installed in the groove of the workbench (1). Multiple sets of through holes are arranged at equal intervals on the filter plate (3). A sliding structure is provided on the top of the filter plate (3). A set of parallel and vertical fixing plates (7) are fixedly installed on both sides of the top of the sliding structure. A through threaded hole is opened in the center of the side of the fixing plate (7). A clamping structure is provided on the fixing plate (7). A recycling structure is provided at the bottom of the groove of the workbench (1). A cooling box (14) is fixedly installed in the center of the top of the workbench (1). A cover plate (15) is fixedly installed on the top of the cooling box (14). A coolant tank (16) is fixedly installed on one side of the top of the workbench (1). A coolant conveying structure is provided on the top of the coolant tank (16). A spraying structure is provided on the lower surface of the cover plate (15).

2. The cooling device for processing martensitic stainless steel according to claim 1, characterized in that: The sliding structure includes a slide rod (4), a limiting rod (5), and a slide table (6). A set of parallel slide rods (4) are fixedly installed on the top of the filter plate (3). One end of the slide rod (4) is fixedly connected to the inner side of the cover plate (15). The other end of the slide rod (4) is fixedly installed with a limiting rod (5). A slide table (6) is slidably installed on the top of the slide rod (4). A set of parallel fixing plates (7) are fixedly installed on both sides of the top of the slide table (6).

3. The cooling device for processing martensitic stainless steel according to claim 2, characterized in that: The clamping structure includes a threaded rod (8), a rotating handle (9), and a clamping block (10). The threaded rod (8) is movably installed on the side of the fixed plate (7). The threaded rod (8) is threadedly connected to a threaded hole on the fixed plate (7). The rotating handle (9) is fixedly installed at one end of the threaded rod (8), and the clamping block (10) is fixedly connected at the other end of the threaded rod (8). The clamping block (10) is V-shaped.

4. The cooling device for processing martensitic stainless steel according to claim 1, characterized in that: The recycling structure includes a coolant recycling tank (11), a coolant recycling pipe (12), and a reflux extraction pump (13). The coolant recycling tank (11) is fixedly installed at the bottom of the slot opened on the workbench (1). The top of the coolant recycling tank (11) is inclined. A through hole is opened at the inclined bottom inside the coolant recycling tank (11). The coolant recycling pipe (12) is fixedly connected in the through hole. The other end of the coolant recycling pipe (12) is fixedly connected to the reflux extraction pump (13). The bottom of the reflux extraction pump (13) is fixedly installed on the top of the workbench (1).

5. The cooling device for processing martensitic stainless steel according to claim 4, characterized in that: The coolant delivery structure includes a coolant tank (16), a coolant output pipe (17), and a coolant extraction pump (18). The coolant tank (16) is fixedly installed on the top of the workbench (1) corresponding to the side of the reflux extraction pump (13). The coolant tank (16) is connected to the reflux extraction pump (13) through a connecting pipe. The coolant output pipe (17) is fixedly installed on the top of the coolant tank (16). The other end of the coolant output pipe (17) is fixedly connected to the coolant extraction pump (18). The bottom of the coolant extraction pump (18) is fixedly installed on the top of the cover plate (15).

6. The cooling device for processing martensitic stainless steel according to claim 1, characterized in that: The spray structure includes a coolant spray head (19), spray holes (20), and a temperature detector (21). The coolant spray head (19) is fixedly installed in the center of the lower surface of the cover plate (15). Multiple sets of spray holes (20) are arranged at equal intervals at the bottom of the coolant spray head (19). A set of symmetrical temperature detectors (21) are fixedly installed on the lower surface of the cover plate (15) corresponding to the two sides of the coolant spray head (19).