Machine tool cooling liquid circulating system

By designing a machine tool coolant circulation system with modules for supply, pressurization, and recycling, the problem of insufficient sedimentation of waste liquid impurities was solved, achieving efficient recovery and reuse of coolant and improving the machining accuracy of machine tools.

CN121821133APending Publication Date: 2026-04-10王文强
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-04-24
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing machine tool coolant circulation systems cannot effectively collect waste liquid after cooling and allow it to flow in a vortex, resulting in insufficient sedimentation of impurities, which affects the recycling of waste liquid and consequently the efficiency of coolant circulation.

Method used

A machine tool coolant circulation system was designed, including a supply module, a pressurized spray module, and a recycling module. Waste liquid is collected by a vortex disk, and impurities are removed by components such as a crushing wheel, filter cartridge, and dispersion tank, so as to realize the recycling and reuse of waste liquid.

Benefits of technology

It achieves efficient recovery and reuse of coolant, thoroughly removes impurities, improves the recycling efficiency of coolant, and ensures the machining accuracy of machine tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of cooling liquid recycling, in particular to a machine tool cooling liquid circulating system. Comprising a supply module for providing cooling liquid, a pressurizing module for driving the cooling liquid to be sprayed out at a high speed and a recycling module for collecting waste liquid generated after the machine tool is cooled and cleaned, and the cooling liquid of the recycling module can flow back to the supply module. The recycling and reusing module is used for recycling and reusing the waste liquid and comprises the following steps that 1, the waste liquid is collected, and impurities in the waste liquid are crushed; 2, filtering the waste liquid to remove impurities; 3, dispersing and shunting the filtrate obtained in the step 2; step 4, collecting impurities deposited in the shunted filtrate; and fifthly, the cooling liquid obtained through flow dividing flows back to the supply module to cool the machine tool again. The cooled waste liquid can be collected to flow in a vortex shape, impurities are sufficiently precipitated and removed, and the waste liquid is recycled.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of cooling liquid recycling, more particularly to a machine tool cooling liquid circulation system. BACKGROUND

[0002] The spindle system of a metal cutting numerical control machine tool is generally composed of a spindle and a main transmission gear box, and the precision of the spindle system directly affects the machining precision of the numerical control machine tool. In addition to the machining precision and assembly and debugging precision of mechanical structures and parts, the heat generated by the rotation of the spindle during the machining process also causes thermal elongation of the spindle, which is one of the important factors affecting the precision of the spindle system. The main transmission gear box is a gear transmission, and heat is generated during normal operation, which also affects the precision and normal operation of the system. The temperature rise of the spindle system mainly comes from two aspects: on the one hand, the heat generated by the spindle during high-speed rotation causes thermal elongation of the spindle itself, affecting the machining precision of the main machine; on the other hand, the friction between the supporting bearings of the transmission shafts and the transmission meshing gears in the main transmission gear box also generates heat, which affects the normal operation of the transmission system. The best way to reduce this temperature rise is to use effective cooling methods for temperature rise components and components in contact with each other. In the process of mechanical transmission, heat is generated by friction, and how to reduce friction and heat generated by friction is one of the effective methods to solve this problem. However, the existing machine tool cooling liquid circulation system cannot collect the waste liquid after cooling to perform vortex flow, fully remove impurities, and recycle the waste liquid. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the present application provides a machine tool cooling liquid circulation system which can collect waste liquid after cooling to perform vortex flow, fully remove impurities, and recycle the waste liquid.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A machine tool cooling liquid circulation system includes a supply module that provides cooling liquid, a pressurization module that drives the cooling liquid to be sprayed at high speed, and a recycling module that collects waste liquid after the machine tool is cooled. The cooling liquid in the recycling module can flow back to the supply module.

[0006] Further, the recycling module recycles the waste liquid by the following steps:

[0007] Step 1: Collecting the waste liquid and crushing the impurities in the waste liquid;

[0008] Step 2: Filtering the waste liquid to remove impurities;

[0009] Step three: disperse and branch the filtrate obtained in step two;

[0010] Step four: collect the impurities deposited in the branched filtrate;

[0011] Step five: return the cooling liquid obtained by branching to the supply module to cool the machine tool again.

[0012] Further, the vortex disc for collecting waste liquid is fixed on the supporting plate, and the contact surface of the supporting plate and the vortex disc is a slope.

[0013] Further, it further comprises a rotating disc rotatably connected to the supporting plate, a stand fixed on the rotating disc, a sliding frame slidably connected to the stand, a speed reducer motor I fixed on the sliding frame, and a crushing wheel for crushing impurities fixed on the output shaft of the speed reducer motor I.

[0014] Further, the stand is rotatably connected to a lead screw for driving the sliding frame to reciprocally slide on the stand. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described in detail below in combination with the drawings and specific implementation methods.

[0016] Figure 1 The flow chart of the cooling liquid circulation system;

[0017] Figure 2 The flow chart of the recycling and reuse of the cooled waste liquid;

[0018] Figure 3 The structure diagram of collecting waste liquid;

[0019] Figure 4 The structure diagram of crushing waste liquid impurities;

[0020] Figure 5 The structure diagram of driving the rotating disc to rotate;

[0021] Figure 6 The schematic diagram of crushing impurities;

[0022] Figure 7 The structure diagram of driving the sliding frame to move;

[0023] Figure 8 The structure diagram of filtering impurities;

[0024] Figure 9 The position structure diagram of filter paper;

[0025] Figure 10 The structure diagram of dispersing filtrate;

[0026] Figure 11 The structure diagram of cooling liquid circulation.

[0027] Whirlpool 11; support plate 12; bracket 13; ring stand 14; extension tube 15; turntable 21; stand 22; gear ring 23; edge wheel 24; screw rod 25; slide 31; speed reducer motor I 32; crushing wheel 33; filter cartridge 41; connecting pipe 42; filter paper 43; dispersion barrel 51; return pipe 52; shunt pipe 53; sedimentation pipe 54; threaded pipe 55; end plate 61; dispersion leaf 62. DETAILED DESCRIPTION

[0028] With reference to Figure 1 And 2 , the circulation process of the cooling liquid circulating machine tool is described in detail:

[0029] A machine tool cooling liquid circulating system, comprising a supply module for providing cooling liquid, a sufficient supply of cooling liquid, and a pressurization module for driving the high-speed spraying of cooling liquid, the high-pressure cooling liquid sprayed for cooling and cleaning the machine tool, and a recycling module for collecting the waste liquid after cooling and cleaning the machine tool, recycling the waste liquid to remove impurities in the waste liquid to obtain qualified cooling liquid, the cooling liquid of the recycling module can flow back to the supply module to recycle the cooling liquid.

[0030] In combination with the above embodiments, the following functions can also be implemented;

[0031] With reference to Figure 2 , the implementation process of recycling the waste liquid after cooling the machine tool is described in detail:

[0032] The recycling module recycles the waste liquid, comprising the following steps:

[0033] Step one: collect the waste liquid and crush the impurities in the waste liquid, so as to ensure that the debris generated during the machining of the machine tool parts is fully crushed, facilitating the removal of impurities in the waste liquid;

[0034] Step two: filter the waste liquid to remove impurities, collect the impurities, and further filter the filtrate;

[0035] Step three: disperse and shunt the filtrate obtained in step two to evenly disperse and lay the filtrate, facilitating the removal of impurities in the filtrate;

[0036] Step four: collect the impurities deposited in the shunted filtrate, separate the impurities in the filtrate by deposition, and then collect the impurities after deposition;

[0037] Step five: return the cooling liquid obtained by shunting to the supply module to cool the machine tool again, realizing the recycling of the cooling liquid.

[0038] In combination with the above embodiments, the following functions can also be implemented;

[0039] ReferenceFigure 3 The implementation process of dispersing the waste liquid to facilitate the removal of impurities is described in detail.

[0040] The vortex disc 11 for collecting the waste liquid is fixedly connected to the supporting plate 12, the contact surface of the supporting plate 12 with the vortex disc 11 is a slope surface, the collected waste liquid flows along the vortex channel of the vortex disc 11, thereby realizing the dispersed flow of the waste liquid, facilitating the separation of the chips generated by the machine tool processing from the cooling liquid, the removal of impurities in the cooling liquid, and the recycling and utilization of the cooling liquid. The slope surface of the supporting plate 12 can make the waste liquid converge to the middle part of the supporting plate 12 along the vortex channel of the vortex disc 11 for centralized treatment, thereby facilitating the recycling and utilization.

[0041] In combination with the above embodiments, the following functions can also be realized.

[0042] Reference Figure 4 , 5 , 6 and 7, the implementation process of breaking the impurities in the broken waste liquid is described in detail.

[0043] Further comprising a rotating disc 21 rotatably connected to the supporting plate 12, the rotating disc 21 can rotate around its own axis, the rotating disc 21 is fixedly connected with a stand 22, the stand 22 is slidingly connected with a sliding frame 31, the sliding frame 31 is fixedly connected with a speed reducer motor I 32, the output shaft of the speed reducer motor I 32 is fixedly connected with a broken wheel 33 for breaking impurities, starting the speed reducer motor I 32, the output shaft of the speed reducer motor I 32 drives the broken wheel 33 to rotate, the broken wheel 33 can break the impurities in the waste liquid, the sliding frame 31 slidingly cooperates with the rotation of the rotating disc 21 to realize that the broken wheel 33 can move along the vortex channel of the vortex disc 11, thereby realizing that the impurities in the collected waste liquid are fully broken, so that the impurities can flow with the waste liquid, facilitating the recycling and utilization of the waste liquid.

[0044] In combination with the above embodiments, the following functions can also be realized.

[0045] Reference Figure 7 , the implementation process of driving the sliding frame to reciprocatingly slide is described in detail.

[0046] The stand 22 is rotatably connected with a lead screw 25 for driving the sliding frame 31 to reciprocatingly slide on the stand 22, the sliding frame 31 is fixedly connected with a lead screw sleeve, thereby realizing the transmission of the lead screw 25 and the lead screw sleeve, the lead screw 25 is fixedly connected to the output shaft of a speed reducer motor II, the speed reducer motor II is fixedly connected to the stand 22 by bolts, starting the speed reducer motor II, the speed reducer motor II drives the lead screw 25 to rotate, the lead screw 25 drives the lead screw sleeve to drive the sliding frame 31 to reciprocatingly slide on the stand 22 through the thread, cooperating with the rotation of the rotating disc 21 to realize that the broken wheel 33 can move along the vortex channel of the vortex disc 11, thereby realizing that the impurities in the collected waste liquid are fully broken.

[0047] In conjunction with the above embodiments, the following functions can also be achieved;

[0048] refer to Figure 5 The implementation process of driving the turntable to rotate is explained in detail:

[0049] A gear ring 23 is fixedly connected to the turntable 21, and a ring frame 14 is fixedly connected to the support plate 12. Multiple side wheels 24 that drive the gear ring 23 to rotate are rotatably connected to the ring frame 14. The multiple side wheels 24 are respectively fixed on the output shafts of multiple reduction motors III. The multiple reduction motors III are all fixedly connected to the ring frame 14. When the multiple reduction motors III are started, the multiple reduction motors III drive the multiple side wheels 24 to rotate. The multiple side wheels 24 synchronously mesh and drive the gear ring 23 to rotate. The gear ring 23 drives the turntable 21 to rotate. The turntable 21 drives the upright frame 22 to rotate. The upright frame 22 drives the slide 31 to rotate. The slide 31 drives the reduction motor I 32 and the crushing wheel 33 to rotate. Thus, the crushing wheel 33 can move along the vortex channel of the vortex disk 11, thereby achieving full crushing of impurities in the collected waste liquid.

[0050] In conjunction with the above embodiments, the following functions can also be achieved;

[0051] refer to Figure 8 and 11 The implementation process for removing impurities from waste liquid is described in detail below:

[0052] The lower end of the support plate 12 is fixedly connected to an extension pipe 15 and a bracket 13. A filter cartridge 41 is threadedly connected to the extension pipe 15, and a dispersion tank 51 is fixedly connected to the bracket 13. A threaded pipe 55 is fixedly connected to the dispersion tank 51. The lower end of the filter cartridge 41 is threadedly connected to a connecting pipe 42 that is detachably connected to the threaded pipe 55. The waste liquid collected on the support plate 12 flows into the extension pipe 15 and then into the filter cartridge 41 for filtration. The filtrate after removing impurities flows through the connecting pipe 42 and then into the threaded pipe 55, and then into the dispersion tank 51 for dispersion, preparing for the deposition of remaining impurities, so as to facilitate the removal of remaining impurities in the filtrate. The detachable connection between the connecting pipe 42 and the threaded pipe 55, together with the connection between the filter cartridge 41 and the extension pipe 15, allows for the disassembly of the filter cartridge 41, thereby realizing the quick replacement of the filter cartridge 41 and ensuring that the filter cartridge 41 removes impurities from the waste liquid.

[0053] In conjunction with the above embodiments, the following functions can also be achieved;

[0054] refer to Figure 9 The following details the implementation process for separating impurities from the filtrate:

[0055] The filter cartridge 41 is detachably connected to a filter paper 43, which separates impurities from the filtrate, thereby removing impurities from the waste liquid. The filter paper 43 can be quickly replaced after the filter cartridge 41 is removed, ensuring the filtration effect on the waste liquid.

[0056] In conjunction with the above embodiments, the following functions can also be achieved;

[0057] refer to Figure 10 and 11 The following details the process of separating impurities by allowing the filtrate to settle:

[0058] A return pipe 52 is fixedly connected to the middle of the dispersion tank 51. Both ends of the dispersion tank 51 are fixedly connected to a diversion pipe 53 communicating with the return pipe 52. A sedimentation pipe 54 is fixedly connected to the lowest point of each of the two diversion pipes 53. The filtrate in the dispersion tank 51 is diverted and dispersed through the two diversion pipes 53, which slows down the flow rate of the filtrate and ensures that the filtrate is spread evenly. The filtrate flowing in the two diversion pipes 53 undergoes sedimentation of impurities in the slow flow. The impurities are deposited at the lowest point of the two diversion pipes 53, and thus the impurities are separated in the two sedimentation pipes 54. This allows for the collection of impurities, facilitating the recycling and reuse of both the coolant and the impurities. The sedimentation pipe 54 is connected to the supply module, thereby realizing the recycling of the coolant.

[0059] In conjunction with the above embodiments, the following functions can also be achieved;

[0060] refer to Figure 10 and 11 The implementation process of driving filtrate dispersion is described in detail:

[0061] It also includes end plates 61 fixedly connected to both ends of the dispersion tank 51. Dispersion blades 62 for dispersing filtrate are rotatably connected to the two end plates 61. The dispersion blades 62 are fixedly connected to the output shaft of the geared motor IV. The geared motor IV is fixedly connected to the corresponding end plate 61. When the geared motor IV is started, the geared motor IV drives the dispersion blades 62 to rotate. The rotation of the dispersion blades 62 drives the filtrate to flow, thereby achieving the dispersion of the filtrate and facilitating the deposition of impurities.

Claims

1. A machine tool coolant circulation system, characterized in that: It includes a coolant supply module, a pressurization module that drives the coolant to spray out at high speed, and a recycling module that collects waste liquid after cooling and cleaning the machine tool. The coolant in the recycling module can flow back to the supply module.

2. The machine tool coolant circulation system according to claim 1, characterized in that: The recycling module recycles and reuses waste liquid by including the following steps: Step 1: Collect the waste liquid and crush the impurities in it; Step 2: Filter the waste liquid to remove impurities; Step 3: Disperse and split the filtrate obtained in Step 2; Step 4: Collect the impurities deposited in the diverted filtrate; Step 5: Return the diverted coolant to the supply module to cool the machine tool again.

3. The machine tool coolant circulation system according to claim 2, characterized in that: It includes a vortex disk (11) for collecting waste liquid, the vortex disk (11) is fixed on the support plate (12), and the contact surface between the support plate (12) and the vortex disk (11) is a slope.

4. The machine tool coolant circulation system according to claim 3, characterized in that: It also includes a turntable (21) rotatably connected to a support plate (12), a stand (22) fixedly connected to the turntable (21), a slide (31) slidably connected to the stand (22), a reduction motor I (32) fixedly connected to the slide (31), and a crushing wheel (33) for crushing impurities fixedly connected to the output shaft of the reduction motor I (32).

5. The machine tool coolant circulation system according to claim 4, characterized in that: The support frame (22) is rotatably connected to a lead screw (25) that drives the slide (31) to slide back and forth on the support frame (22).

6. The machine tool coolant circulation system according to claim 4, characterized in that: A gear ring (23) is fixedly connected to the turntable (21), and a ring frame (14) is fixedly connected to the support plate (12). Multiple side wheels (24) that drive the gear ring (23) to rotate are rotatably connected to the ring frame (14).

7. The machine tool coolant circulation system according to claim 6, characterized in that: The lower end of the support plate (12) is fixedly connected to an extension tube (15) and a bracket (13). A filter cylinder (41) is threadedly connected to the extension tube (15). A dispersion barrel (51) is fixedly connected to the bracket (13). A threaded tube (55) is fixedly connected to the dispersion barrel (51). The lower end of the filter cylinder (41) is threadedly connected to a connecting tube (42) that is detachably connected to the threaded tube (55).

8. The machine tool coolant circulation system according to claim 7, characterized in that: The filter cartridge (41) is detachably connected to filter paper (43).

9. The machine tool coolant circulation system according to claim 8, characterized in that: A return pipe (52) is fixedly connected to the middle of the dispersion tank (51), and a diversion pipe (53) connected to the return pipe (52) is fixedly connected to both ends of the dispersion tank (51). A sedimentation pipe (54) is fixedly connected to the lowest point of each of the two diversion pipes (53).

10. The machine tool coolant circulation system according to claim 9, characterized in that: It also includes end plates (61) fixed to both ends of the dispersion tank (51), and dispersion blades (62) for dispersing filtrate are rotatably connected to the two end plates (61).