Cooling mechanism for machining center

Abstract

The utility model discloses a cooling mechanism for machining center, including structure case, the inside fixed connection of structure case has workstation, the top fixed connection of structure case has top frame, the central fixed connection of workstation top has fixture table, the rear side fixed connection of structure case inside below has positive and negative motor, the output of positive and negative motor penetrates to the top of workstation and is fixedly connected with the lead screw. The utility model discloses through the cooling liquid absorption heat, and the backflow to the cooling oil tank through the square tank and the mesh box, forms the closed loop circulating system, reduced the use cost, through the cooling oil tank bottom's heat dissipation copper pipe and the heat dissipation fan cooperation, through increasing the heat dissipation area and forced air convection, effectively reduce cooling liquid temperature, ensure that circulating cooling liquid always keeps good heat absorbing capacity, reaches the cooling liquid recycling when cooling, saves the cooling liquid, improves the cooling efficiency, and the advantage that the user uses conveniently.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically a cooling mechanism for machining centers. Background Technology

[0002] In the field of machining, machining centers play a crucial role, their high-efficiency and high-precision machining capabilities greatly improving production efficiency and product quality. However, during machining, the intense friction between the cutting tool and the workpiece generates a large amount of heat. If this heat cannot be dissipated in time, it will cause many serious problems. On the one hand, excessively high temperatures will cause the cutting tool to wear out rapidly or even anneal, seriously affecting the tool's service life and machining accuracy, leading to increased dimensional deviations and surface roughness of the machined workpiece, and a higher scrap rate. On the other hand, the accumulation of heat may also cause the workpiece to deform due to heat, failing to meet design requirements and reducing the product qualification rate.

[0003] Currently, there are various cooling mechanisms for machining centers on the market. Some traditional cooling mechanisms use a simple spraying method, spraying coolant onto the machining area through nozzles to remove heat. However, the coolant can often only be used once and cannot be recycled, which not only wastes resources but also increases production costs.

[0004] Therefore, it is necessary to modify it by setting up a coolant recovery and cooling structure to cool the coolant during recycling, thereby saving coolant, improving cooling efficiency, and making it more convenient for users. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a cooling mechanism for machining centers. This mechanism has the advantages of cooling the coolant during recycling, saving coolant, improving cooling efficiency, and being convenient for users. It solves the problem that coolant can often only be used once and cannot be circulated, which not only wastes resources but also increases production costs. Furthermore, during the coolant circulation process, the coolant, having absorbed a large amount of heat, is not effectively cooled, resulting in a continuous decrease in the coolant's heat absorption capacity and making it difficult to continuously and efficiently cool the machining area.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cooling mechanism for a machining center, comprising a structural box, a worktable fixedly connected inside the structural box, a top frame fixedly connected to the top of the structural box, a clamping table fixedly connected to the center of the top of the worktable, a forward and reverse motor fixedly connected to the rear side of the lower part of the structural box, the output end of the forward and reverse motor extending through to the top of the worktable and fixedly connected to a lead screw, the top end of the lead screw being rotatably connected to the bottom of the top frame, a nut seat threaded onto the surface of the lead screw, crossbars fixedly connected to the left and right sides of the nut seat, and a nozzle array fixedly connected to the outer end of the crossbars, the surface of the worktable... The workbench has vertically penetrating square slots on both the left and right sides, and each slot has a mesh box fitted inside. A cooling oil tank connected to the square slots is fixedly connected to the bottom of the workbench. Several evenly distributed heat dissipation copper pipes are connected to the bottom of the cooling oil tank. A through slot is opened on both the left and right sides of the lower back of the structure box, and a cooling fan is fixedly connected inside the through slot. A circulation pump is fixedly connected to the rear side of the bottom of the inner wall of the structure box. The input end of the circulation pump is connected to the bottom of the cooling oil tank. The output end of the circulation pump is connected to oil delivery pipes on both the left and right sides through a distributor. The top of the oil delivery pipe extends to the top of the workbench and is connected to the input end of the nozzle array through a telescopic hose.

[0007] As a preferred embodiment of this utility model, a detachable sealing cover is fixedly connected to the front of the cooling oil tank by bolts, an oil filter element is inserted into the upper part of the interior of the cooling oil tank, the back of the oil filter element is attached to the rear side of the inner wall of the cooling oil tank, the front of the oil filter element is attached to the back of the sealing cover, and a detachable maintenance cover is fixedly connected to the lower part of the front of the structure box by screws.

[0008] As a preferred embodiment of this utility model, a sliding sleeve is fixedly connected to the front end of the nozzle array, and a stabilizing rod is slidably connected inside the sliding sleeve. The top end of the stabilizing rod is fixedly connected to the bottom of the top frame, and the bottom end of the stabilizing rod is fixedly connected to the top of the workbench.

[0009] As a preferred embodiment of this utility model, replaceable rubber scrapers are fixedly connected to the outer side of the nozzle row and the back of the crossbar, and the outer side of the rubber scraper is in contact with the inner wall of the structural box.

[0010] As a preferred embodiment of this utility model, slide bars are fixedly connected to both the left and right sides of the upper rear side of the inner wall of the structural box, and a slide groove is provided on the back of the crossbar to cooperate with the slide bar, and the surface of the slide bar is slidably connected to the inner wall of the slide groove.

[0011] As a preferred embodiment of this utility model, a sealed bearing is fixedly connected to the surface of the output end of the forward and reverse motor, and the surface of the sealed bearing is fixedly connected to the surface of the worktable. A sealing ring is fixedly connected above the surface of the oil pipe, and the surface of the sealing ring is fixedly connected to the surface of the worktable.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a circulating pump to deliver coolant from the cooling oil tank to the nozzle array, achieving continuous spray cooling of the processing area. After absorbing heat, the coolant flows back to the cooling oil tank through a square channel and a strainer box, forming a closed-loop circulation system. This improves the utilization rate of the coolant and reduces operating costs. A forward and reverse motor drives a lead screw to rotate, causing the nut seat to move the nozzle array up and down, achieving all-around spraying of the processing area. Compared to traditional fixed nozzles, the spray position can be adjusted according to processing needs, improving the targeted cooling effect. The cooling copper pipes at the bottom of the cooling oil tank, in conjunction with a cooling fan, effectively reduce the coolant temperature by increasing the heat dissipation area and forcing air convection, ensuring the circulating coolant always maintains good heat absorption capacity. This achieves the advantages of cooling the coolant during recycling, saving coolant, improving cooling efficiency, and providing convenience for users.

[0013] 2. This utility model, by setting up an oil filter element, can effectively intercept metal shavings and impurities in the coolant, preventing them from entering the nozzle drain with the circulation and causing blockage or scratching of the workpiece surface. Combined with a detachable sealing cover and inspection cover, it forms a quick maintenance channel, significantly reducing equipment downtime. The close fit design between the oil filter element and the sealing cover ensures the integrity of the filtration effect, preventing impurities from wrapping around the filter element through gaps, ensuring the cleanliness of the coolant, extending the service life of the coolant and key equipment components, and reducing maintenance costs, so that the entire cooling system remains highly efficient and stable during long-term operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the front sectional view of the present invention; Figure 3 This is a schematic diagram of the right-side cross-sectional structure of this utility model; Figure 4 This is a top sectional view of the structure of this utility model.

[0015] In the diagram: 1. Structural box; 2. Workbench; 3. Top frame; 4. Fixture table; 5. Forward and reverse motors; 6. Lead screw; 7. Nut seat; 8. Crossbar; 9. Nozzle array; 10. Screen box; 11. Cooling oil tank; 12. Copper heat dissipation pipe; 13. Cooling fan; 14. Circulation pump; 15. Oil delivery pipe; 16. Sealing cover; 17. Oil filter element; 18. Inspection cover; 19. Sliding sleeve; 20. Stabilizer bar; 21. Rubber scraper; 22. Sliding strip; 23. Sliding groove; 24. Sealed bearing; 25. Sealing ring. Detailed Implementation

[0016] 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.

[0017] like Figures 1 to 4 As shown, this utility model provides a cooling mechanism for a machining center, including a structural box 1. A workbench 2 is fixedly connected inside the structural box 1. A top frame 3 is fixedly connected to the top of the structural box 1. A clamping table 4 is fixedly connected to the center of the top of the workbench 2. A forward and reverse motor 5 is fixedly connected to the rear side of the lower part of the structural box 1. The output end of the forward and reverse motor 5 extends through to the top of the workbench 2 and is fixedly connected to a lead screw 6. The top end of the lead screw 6 is rotatably connected to the bottom of the top frame 3. A nut seat 7 is threaded onto the surface of the lead screw 6. Retractable lead screw protective sleeves are fitted at both the upper and lower ends of the lead screw 6 surface to prevent iron filings and impurities from adhering to the surface of the lead screw 6 during use, thus affecting its normal operation. Crossbars 8 are fixedly connected to the left and right sides of the nut seat 7. A longitudinally arranged nozzle row 9 is fixedly connected to the outer end of the crossbar 8, and two nozzles... The output ends of the head row 9 all face inward. Square grooves running vertically through the left and right sides of the surface of the workbench 2 are provided, and mesh boxes 10 are fitted inside the two square grooves. A cooling oil tank 11 connected to the square groove is fixedly connected to the bottom of the workbench 2. Several evenly distributed heat dissipation copper pipes 12 are connected to the bottom of the cooling oil tank 11. Through grooves are provided on the left and right sides of the lower back of the structure box 1, and a cooling fan 13 is fixedly connected inside the through groove. The output end of the cooling fan 13 faces the heat dissipation copper pipe 12. A circulation pump 14 is fixedly connected to the rear side of the bottom of the inner wall of the structure box 1. The input end of the circulation pump 14 is connected to the bottom of the cooling oil tank 11. Oil delivery pipes 15 are connected to the left and right sides of the output end of the circulation pump 14 through a distributor. The top end of the oil delivery pipe 15 runs through to the top of the workbench 2 and is connected to the input end of the nozzle row 9 through a telescopic hose.

[0018] refer to Figure 3 A removable sealing cover 16 is bolted to the front of the cooling oil tank 11. An oil filter element 17 is inserted into the upper part of the interior of the cooling oil tank 11. The back of the oil filter element 17 is attached to the rear side of the inner wall of the cooling oil tank 11, and the front of the oil filter element 17 is attached to the back of the sealing cover 16. A removable maintenance cover 18 is bolted to the lower part of the front of the structural box 1.

[0019] As a technical optimization of this utility model, by setting the oil filter element 17, metal shavings and impurities in the coolant can be effectively intercepted, preventing them from entering the nozzle drain 9 with the circulation and causing blockage or scratching of the workpiece surface. Combined with the detachable sealing cover 16 and the inspection cover 18, a quick maintenance channel is formed, which greatly reduces equipment downtime. The fit design between the oil filter element 17 and the sealing cover 16 ensures the integrity of the filtration effect, prevents impurities from wrapping around the filter element from the gaps, ensures the cleanliness of the coolant, extends the service life of the coolant and key equipment components, and reduces maintenance costs, so that the entire cooling system remains efficient and stable during long-term operation.

[0020] refer to Figure 1 The front end of the nozzle row 9 is fixedly connected to a sliding sleeve 19, and a slidable stabilizer 20 is slidably connected inside the sliding sleeve 19. The top end of the stabilizer 20 is fixedly connected to the bottom of the top frame 3, and the bottom end of the stabilizer 20 is fixedly connected to the top of the workbench 2.

[0021] As a technical optimization of this utility model, the stability of the nozzle row 9 is enhanced by the coordinated use of the stabilizing rod 20 and the sliding sleeve 19. This structure provides additional support and guidance for the nozzle row 9, effectively reducing swaying and offset during movement and ensuring the accuracy of the spray position. By sharing part of the weight and lateral force of the nozzle row 9, the stress on the lead screw 6 and nut seat 7 is reduced, reducing wear on mechanical parts and extending the service life of the transmission system. The stable movement trajectory ensures the relative positional accuracy of the nozzle row 9 and the workpiece processing area, enabling the coolant to accurately cover the contact area between the tool and the workpiece, improving the consistency and reliability of the cooling effect.

[0022] refer to Figure 1 Replaceable rubber scrapers 21 are fixedly connected to the outer side of the nozzle row 9 and the back of the crossbar 8. The outer side of the rubber scraper 21 is in contact with the inner wall of the structure box 1.

[0023] As a technical optimization of this utility model, rubber scrapers 21 are installed on the outer side of the nozzle row 9 and the back of the crossbar 8 to achieve the self-cleaning function of the cooling system: when the scrapers move up and down with the nozzle row 9, they can simultaneously scrape off the coolant residue and metal shavings attached to the inner wall of the structural box 1, preventing equipment corrosion caused by the accumulation of impurities. At the same time, the recovered coolant can be returned to the cooling oil tank 11 through the square groove, further improving resource utilization. The replaceable scraper design reduces maintenance costs and the frequency of manual intervention while ensuring cleaning effect, so that the equipment can maintain a high-efficiency state during long-term operation and improve the reliability and service life of the equipment.

[0024] refer to Figure 2Slide strips 22 are fixedly connected to the upper left and right sides of the inner wall of the structural box 1. A groove 23 is provided on the back of the crossbar 8 to cooperate with the slide strips 22. The surface of the slide strips 22 is slidably connected to the inner wall of the groove 23.

[0025] As a technical optimization of this utility model, by setting the sliding bar 22 and the sliding groove 23 in combination, a dual redundant guiding system is formed with the stabilizing bar 20 system, which further optimizes the motion stability of the nozzle row 9: by dispersing the lateral force, the load on the lead screw 6 and nut seat 7 is reduced, the risk of thread wear and jamming is reduced, and the synchronous motion accuracy of the left and right nozzle rows 9 is also ensured; the synergistic effect of the dual guiding mechanism enables the spray system to maintain a stable trajectory in high-speed reciprocating motion, improves the smoothness of the movement and load balance of the nozzle row 9, extends the life of the transmission components, and provides reliable cooling guarantee for high-precision machining.

[0026] refer to Figure 3 A sealed bearing 24 is fixedly connected to the surface of the output end of the forward and reverse motor 5. The surface of the sealed bearing 24 is fixedly connected to the surface of the worktable 2. A sealing ring 25 is fixedly connected above the surface of the oil pipe 15. The surface of the sealing ring 25 is fixedly connected to the surface of the worktable 2.

[0027] As a technical optimization of this utility model, by setting the sealing bearing 24 and the sealing ring 25 in cooperation, the coolant leakage from the connection between the worktable 2 and the output end of the forward and reverse motor 5 and the oil supply pipe 15 is effectively prevented. This avoids coolant waste and contamination of the equipment interior, and reduces the corrosion of precision components such as motors and bearings by the coolant. It extends the service life of key components of the equipment, reduces the probability of failure caused by poor sealing, and ensures the smooth circulation of coolant by maintaining stable system pressure. This allows the entire cooling system to maintain a high-efficiency and safe working state during long-term operation, especially in high-pressure spraying or long-term continuous processing scenarios, thereby improving the reliability and stability of the equipment.

[0028] The working principle and usage process of this utility model are as follows: In use, the cooling mechanism is installed as a whole under the cutting tool of the machining center using bolts or fasteners, allowing the cutting tool to move freely within the range of the top frame 3. Then, depending on the type of machining, the required fixture is fixed to the fixture table 4 using bolts. The workpiece to be machined is fixed by the fixture. Sufficient cooling oil is added into the cooling oil tank 11 through the square groove. The machining center controls the cutting tool to machine the workpiece. The forward and reverse motors 5 and the circulation pump 14 are turned on. The forward and reverse motors 5 drive the lead screw 6 to rotate, moving the nozzle row 9 to the initial cooling position, usually the top of the workpiece. The circulation pump 14 pumps the cooling oil into the nozzle row 9 through the oil delivery pipe 15 and the telescopic hose. The oil nozzles spray towards... Oil is sprayed into the workpiece processing area for cooling. During processing, the forward and reverse motors 5 automatically drive the nozzle array 9 to move up and down according to the workpiece height to ensure that the oil covers the cutting area. At the same time, the cooling fan 13 starts to blow air onto the cooling copper pipe 12 at the bottom of the cooling oil tank 11 to maintain the oil at a low temperature. The strainer box 10 filters metal debris in the oil in real time to prevent the nozzles from clogging. After processing is completed, the circulation pump 14 and the cooling fan 13 are turned off. The forward and reverse motors 5 drive the nozzle array 9 to return to the initial position, drain the residual oil in the oil delivery pipe 15, open the inspection cover 18 and the sealing cover 16, take out the oil filter element 17 to clean impurities, check the debris in the strainer box 10 and empty it. If the cooling oil deteriorates, it is replaced to complete the entire usage process.

[0029] The cutting tools in this device are machining center cutting tools. The aforementioned cutting tools and fixtures are all existing common technologies and are common knowledge to those skilled in the art. Therefore, this application will not elaborate on them in detail. Furthermore, the contents not disclosed in this application are all existing common technologies and are common knowledge to those skilled in the art. Therefore, this application will not elaborate on them in detail.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 cooling mechanism for a machining center, comprising a structural box (1), characterized in that: A workbench (2) is fixedly connected inside the structural box (1). A top frame (3) is fixedly connected to the top of the structural box (1). A clamp table (4) is fixedly connected to the center of the top of the workbench (2). A forward and reverse motor (5) is fixedly connected to the rear side of the lower part of the structural box (1). The output end of the forward and reverse motor (5) extends through to the top of the workbench (2) and is fixedly connected to a lead screw (6). The top end of the lead screw (6) is rotatably connected to the bottom of the top frame (3). A nut seat (7) is threaded onto the surface of the lead screw (6). A crossbar (8) is fixedly connected to both the left and right sides of the nut seat (7). A nozzle row (9) is fixedly connected to the outer end of the crossbar (8). A vertically penetrating square groove is opened on both the left and right sides of the surface of the workbench (2). The inside of the square groove is fitted with a mesh box (10). The bottom of the workbench (2) is fixedly connected to a cooling oil tank (11) that communicates with the square groove. The bottom of the cooling oil tank (11) is connected to several evenly distributed heat dissipation copper pipes (12). The left and right sides of the back of the structure box (1) are provided with through slots, and the inside of the through slots is fixedly connected to a heat dissipation fan (13). The rear side of the bottom of the inner wall of the structure box (1) is fixedly connected to a circulation pump (14). The input end of the circulation pump (14) is connected to the bottom of the cooling oil tank (11). The left and right sides of the output end of the circulation pump (14) are connected to oil delivery pipes (15) through a distributor. The top of the oil delivery pipe (15) extends to the top of the workbench (2) and is connected to the input end of the nozzle row (9) through a telescopic hose.

2. The cooling mechanism for a machining center according to claim 1, characterized in that: The front of the cooling oil tank (11) is fixedly connected to a removable sealing cover (16) by bolts. An oil filter element (17) is inserted into the upper part of the interior of the cooling oil tank (11). The back of the oil filter element (17) is attached to the rear side of the inner wall of the cooling oil tank (11). The front of the oil filter element (17) is attached to the back of the sealing cover (16). A removable maintenance cover (18) is fixedly connected to the lower part of the front of the structural box (1) by screws.

3. The cooling mechanism for a machining center according to claim 2, characterized in that: The front end of the nozzle row (9) is fixedly connected to a sliding sleeve (19), and a stabilizing rod (20) is slidably connected inside the sliding sleeve (19). The top end of the stabilizing rod (20) is fixedly connected to the bottom of the top frame (3), and the bottom end of the stabilizing rod (20) is fixedly connected to the top of the workbench (2).

4. A cooling mechanism for a machining center according to claim 3, characterized in that: Replaceable rubber scrapers (21) are fixedly connected to the outer side of the nozzle row (9) and the back of the crossbar (8), and the outer side of the rubber scraper (21) is in contact with the inner wall of the structure box (1).

5. A cooling mechanism for a machining center according to claim 4, characterized in that: Slide strips (22) are fixedly connected to the upper left and right sides of the inner wall of the structure box (1). A groove (23) for use with the slide strips (22) is opened on the back of the crossbar (8). The surface of the slide strip (22) is slidably connected to the inner wall of the groove (23).

6. A cooling mechanism for a machining center according to claim 5, characterized in that: A sealed bearing (24) is fixedly connected to the surface of the output end of the forward and reverse motor (5). The surface of the sealed bearing (24) is fixedly connected to the surface of the worktable (2). A sealing ring (25) is fixedly connected above the surface of the oil pipe (15). The surface of the sealing ring (25) is fixedly connected to the surface of the worktable (2).

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