Shafting boring cooling tool

The combination of double separation layers and centrifugal separation devices solves the problems of high noise and difficult cleaning of iron chip separation in the cooling device of CNC machine tools, achieves low-noise and efficient coolant separation and recycling, and improves processing quality and production efficiency.

CN117124127BActive Publication Date: 2025-10-17CHENGXI SHIPYARD
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Patent Information

Application Number
CN202310575627.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-22
Publication Date
2025-10-17
Estimated Expiration
2043-05-22

AI Technical Summary

Technical Problem

The existing cooling device of CNC machine tools is noisy when filtering iron chips, and cleaning is time-consuming and labor-intensive. In addition, the filter plate is easily clogged, which affects the processing quality and production efficiency.

Method used

The double-layer structure is combined with a centrifugal separation device and a planetary reduction gear set to achieve efficient separation and recycling of coolant, reduce noise, and improve the operating environment and production efficiency.

Benefits of technology

It achieves low noise and efficient coolant separation, reduces iron chip residue, reduces equipment maintenance frequency, and improves processing quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117124127B_ABST
    Figure CN117124127B_ABST
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Abstract

The application discloses a kind of axle system boring cooling tool, including cooling liquid tank, cooling liquid tank is sequentially provided with first partition layer, second partition layer from top to bottom by inside;First partition layer is partition plate, and the upper pool body of cooling liquid is formed on the upper side of partition plate;Second partition layer is filter plate with filter hole;Partition cylinder wall is arranged between first partition layer and second partition layer, and hollow cavity is arranged in the inside of partition cylinder wall, and separation device is arranged in the cavity, and the upper pool body is communicated with partition cylinder wall by downcomer, and inlet end of liquid pump is communicated to the cavity, and outlet end is connected with liquid pipe.The cooling tool utilizes two partition layers to set separation device between them, separates the cooling liquid with iron filings entering the cavity through downcomer, utilizes centrifugal separation principle, can achieve the operation noise of equipment, can create better operating environment for operator.Using impeller to drive the rotation of cooling liquid realizes efficient centrifugal separation effect.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools, in particular to an axle system boring cooling tool. BACKGROUND

[0002] A large amount of heat is generated in the process of pre-boring of the ship shafting, and if the heat cannot be well controlled, it will have a great impact on the machining quality of the workpiece, and the importance of the transmission system parts is self-evident, and such an impact will be fatal. The boring work of the ship shafting is usually carried out by using a numerical control machine tool, and the cooling of the numerical control machine tool utilizes the liquid properties of the cutting fluid itself to enable it to have the ability of cooling and reducing temperature. Its cooling function can significantly reduce the temperature generated during the cutting of the workpiece, reduce the wear of the tool, and improve the service life of the tool. At the same time, the control of temperature can also effectively prevent the workpiece from being affected by thermal expansion, warping, etc. on the machining precision, and inhibit the generation of thermal metamorphic layer on the machined surface.

[0003] After the cutting fluid cools the workpiece, iron filings are often mixed and dropped. The prior art application number: CN202211171553.4 discloses a numerical control machine tool cooling circulation device, which comprises a liquid storage tank with an open upper portion and a filter plate horizontally arranged above the liquid storage tank; a plurality of filter holes are uniformly arranged on the upper surface of the filter plate; a liquid supply assembly is installed on the liquid storage tank; a vibration assembly connected with the filter plate is arranged on the upper portion of the liquid storage tank; the vibration assembly is used to drive the filter plate to vibrate up and down; and a cooling assembly for cooling the cooling liquid is arranged on the lower portion of the liquid storage tank. The defects of this technology are: the filter plate is driven by the vibration assembly to vibrate up and down to prevent the filter holes on the filter plate from being blocked, but the filter plate only has the function of vibrating up and down for filtering, and the noise generated by the up-down vibration is large, which makes the working environment of the workers operating beside the boring machine poor, and it is also difficult to control the splashing of liquid drops; and it can be predicted that a large amount of iron filings will accumulate on the filter plate after a period of use, the resistance of the filter plate vibration will increase, and the load of the filter plate and the driving part will increase sharply, so it is necessary to clean the iron filings separated by the filter regularly, and the filter holes on the filter plate are dense, so it is time-consuming and laborious to clean them, which has a great impact on production.

[0004] In view of the above, it is necessary to provide an axle system boring cooling tool to solve the above problems. SUMMARY

[0005] The purpose of the present application is to solve the above technical problems and provide an axle system boring cooling tool.

[0006] In order to achieve the above object, the application adopts the following technical scheme: a shaft system boring cooling tooling, comprising a cooling liquid tank, a first separation layer and a second separation layer are sequentially arranged in the cooling liquid tank from top to bottom; the first separation layer is a separation plate, and an upper pool body for containing cooling liquid is formed on the upper side of the separation plate; the second separation layer is a filter plate provided with filter holes; a separation cylinder wall is arranged between the first separation layer and the second separation layer, the separation cylinder wall is hollow inside and provided with a containing cavity, a separation device is arranged in the containing cavity, the upper pool body is connected with the separation cylinder wall in communication through a downcomer, a liquid delivery pump is arranged in the upper pool body, and an inlet end of the liquid delivery pump is connected to the containing cavity in communication, and an outlet end of the liquid delivery pump is connected with a liquid delivery pipe.

[0007] Further, the second separation layer separates the lower part of the cooling liquid tank into a clear liquid tank and a filter residue tank, the filter residue tank is located on the lower side of the clear liquid tank, the lower end of the containing cavity is connected with the filter residue tank in communication, and the upper end of the containing cavity is provided with an inlet pipe of the liquid delivery pump.

[0008] Further, the separation device comprises an impeller and a driving motor, the impeller is arranged in the containing cavity, and the axis of the impeller coincides with the axis of the containing cavity, the driving motor drives the impeller to rotate, and the driving motor is externally provided with an outer cover for waterproof isolation; the downcomer is connected in the tangential direction of the upper part of the containing cavity.

[0009] Further, the impeller comprises an impeller wall and blades, the impeller wall is a hollow inverted funnel structure, a plurality of blades are fixedly arranged on the outer periphery of the impeller wall, the separation cylinder wall is in the shape of a circular truncated cone with a small upper opening and a large lower opening, and a plurality of through holes are arranged through the impeller wall.

[0010] Further, the impeller wall is a through structure from top to bottom, the upper end is an upper opening, and the lower end is a lower opening, the inlet pipe is arranged along the axis of the impeller, and the inlet pipe has an upper opening extending into the interior of the impeller.

[0011] Further, the liquid delivery pump is provided with a pump turbine, the pump turbine is coaxially arranged with the impeller, the output shaft of the output end of the driving motor penetrates the axis of the impeller into the liquid delivery pump and is connected with the pump turbine, and the side wall of the output shaft is connected with the impeller wall.

[0012] Further, the side wall of the output shaft is fixedly connected with the impeller wall through a plurality of connecting rods.

[0013] Further, a planetary reduction gear set for speed regulation is arranged between the output shaft and the impeller wall, the planetary reduction gear set comprises a sun gear, a plurality of planetary gears and a ring gear, the sun gear is fixedly arranged on the output shaft, the ring gear is fixedly connected with the impeller wall and coaxially arranged with the output shaft, a plurality of planetary gears are arranged in meshing between the ring gear and the sun gear, and the rotation shaft of the planetary gear is fixedly arranged on the outer cover.

[0014] Further, the upper pool body upper side is further provided with a pre-separation conveying belt, the pre-separation conveying belt is a hollow chain plate conveying belt.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1、The boring cooling tool utilizes the separation device arranged between the two separation layers to separate the cooling liquid with iron filings entering the containing cavity from the downcomer, utilizes the centrifugal separation principle, can achieve small operation noise of the equipment, and can create a better operating environment for the operators.

[0017] 2、The rotation of the cooling liquid driven by the impeller realizes efficient centrifugal separation effect, and the pump turbine is coaxially arranged with the impeller, the number of power pumps can be reduced, and the inlet pipe of the liquid pump can extract relatively clean cooling liquid through the inside of the impeller for circulating cooling.

[0018] 3、The second separation layer can separate the separated iron filings through the filter holes, so that there is no iron filings residue in the clear liquid tank.

[0019] 4、One driving motor drives the impeller and the pump turbine, and the rotational speed of the impeller is limited through the planetary reduction gear set, which can improve the liquid pumping flow of the pump turbine to avoid the phenomenon of emptying. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is one of the axial views of the shaft system boring cooling tool of the present application;

[0021] Figure 2 is the second axial view of the shaft system boring cooling tool of the present application;

[0022] Figure 3 is a top view of the present application; Figure 1

[0023] Figure 4 is a structural schematic view of the fourth embodiment of the present application;

[0024] In the figure: 1, cooling liquid tank; 2, first separation layer; 3, second separation layer; 4, upper pool body; 5, separation cylinder wall; 6, downcomer; 7, liquid pump; 8, liquid inlet pipe; 9, clear liquid tank; 10, filter residue tank; 11, inlet pipe; 12, impeller; 13, driving motor; 14, outer cover; 15, impeller wall; 16, blade; 17, through hole; 18, pump turbine; 19, connecting rod; 20, central gear; 21, planetary gear; 22, gear ring; 23, separation conveying belt. DETAILED DESCRIPTION

[0025] ​The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Example 1

[0026] A shaft boring cooling tool comprises a coolant tank 1, wherein a first partition layer 2 and a second partition layer 3 are sequentially arranged in the coolant tank 1 from top to bottom; the first partition layer 2 is a partition plate, and an upper pool body 4 for receiving the coolant is formed on the upper side of the partition plate; the first partition layer 2 is made of a watertight partition plate, and in actual use, the coolant falls into the upper pool body 4 together with the iron chips cut off by turning and is collected.

[0027] The second separation layer 3 is a filter plate with filter holes; and the second separation layer 3 separates the lower part of the cooling liquid tank 1 into a clear liquid tank 9 and a filter residue tank 10. The lower end of the accommodating cavity is connected to the filter residue tank 10, and the upper end of the accommodating cavity is provided with an inlet pipe 11 of the infusion pump 7. Figure 1 As shown, the filter residue tank 10 is located at the lower side of the clear liquid tank 9; further, a partition wall 5 is provided between the first partition layer 2 and the second partition layer 3, and the partition wall 5 is hollow inside and provided with a accommodating cavity, and a separation device is provided in the accommodating cavity. The upper pool body 4 is connected to the partition wall 5 through a downcomer 6. In actual use, the cooling liquid containing iron chips in the upper pool body 4 is controlled by the downcomer 6 to enter the partition wall 5. In actual use, a valve can also be installed on the downcomer 6 to control the flow rate of the liquid. The cooling liquid with iron chips is separated by the separation device, and the iron chips are separated and sent into the filter residue tank 10; and an infusion pump 7 is provided in the upper pool body 4, the inlet end of the infusion pump 7 is connected to the accommodating cavity, and the outlet end is connected to a infusion pipe 8; the separated cooling liquid is extracted by the infusion pump 7 and pumped through the infusion pipe 8 to the boring part that needs spray cooling. In actual use, the infusion pipe 8 can be made of a self-supporting universal bamboo tube, so that it can be easily aligned with the part that needs spray cooling. Example 2

[0028] The separation device in this embodiment can be a centrifugal separation device. Since the iron chips are dense and heavy, when the coolant rotates in the accommodating chamber, the iron chips tend to move toward the wall, while the liquid will gather in the middle. According to this principle, Figure 1 、 Figure 2 As shown, the separation device includes an impeller 12 and a drive motor 13. The impeller 12 is placed in the accommodating chamber, and the axis of the impeller 12 is coincident with the axis of the accommodating chamber. The drive motor 13 drives the impeller 12 to rotate. The drive motor 13 is provided with an outer cover 14 for waterproof isolation.

[0029] The downcomer 6 is connected along the tangential direction of the upper part of the accommodating chamber, as shown in FIG. Figure 3As shown, when the cooling liquid containing impurities enters the accommodating cavity along the tangential direction, the liquid flow driven to rotate by the impeller 12 can more conveniently control the impurity iron scraps to flow along the wall.

[0030] The impeller 12 comprises an impeller wall 15 and blades 16, the impeller wall 15 is an inverted funnel structure with an inner cavity, a plurality of blades 16 are fixedly arranged on the outer periphery of the impeller wall 15, the separation cylinder wall 5 is in the shape of a circular truncated cone with a small upper opening and a large lower opening, and the like. Figure 3 As shown, when the cooling liquid containing impurities enters the accommodating cavity along the tangential direction, the liquid flow driven to rotate by the impeller 12 can more conveniently control the impurity iron scraps to flow along the wall.

[0031] Further, the impeller wall 15 is a through structure from top to bottom with an upper opening at the upper end and a lower opening at the lower end, the inlet pipe 11 is arranged along the axis of the impeller 12 and the upper opening of the inlet pipe 11 extends into the interior of the impeller 12. Since the iron scraps are separated by the impeller 12 during rotation and move along the inner wall of the accommodating cavity, the space in the interior of the impeller 12 is supplemented by the clean cooling liquid passing through the through holes 17, so that the liquid delivery pump 7 can extract the clean cooling liquid from the inlet pipe 11 for cooling and temperature reduction of the workpiece processing part. It can be understood that the through holes 17 can not only make the cooling liquid enter the interior of the impeller 12, but also have a certain filtering effect on the cooling liquid. According to the foregoing description, it can be understood that since the separation cylinder wall 5 is in the shape of a circular truncated cone with a large lower opening, the iron scraps obtain a downward component force by moving along the inclined side wall of the lower opening during the rotating and moving along the wall, so that the iron scraps continuously rotate and move downward and finally enter the residue filtering groove 10. Since the residue filtering groove 10 and the clean liquid groove 9 are separated by the second separation layer 3 in the shape of a filter plate, the iron scraps can be left in the residue filtering groove 10. Example Three

[0032] In this embodiment, the implementation structure of the liquid delivery pump 7 is specifically introduced. Specifically, the liquid delivery pump 7 is provided with a pump turbine 18, the pump turbine 18 is coaxially arranged with the impeller 12, the output shaft of the output end of the driving motor 13 passes through the axis of the impeller 12 and enters the liquid delivery pump 7 to be connected with the pump turbine 18, and the side wall of the output shaft is connected with the impeller wall 15. In this embodiment, one driving motor 13 can simultaneously drive the impeller 12 and the pump turbine 18 to rotate, the impeller 12 separates the iron scraps and impurities by centrifugal force, and the pump turbine 18 controls the clean cooling liquid in the center of the impeller 12 to be extracted for circulation.

[0033] As the first connection mode, as shown in Figure 2 the output shaft side wall is fixedly connected with the impeller wall 15 through a plurality of connecting rods 19; the output shaft of this connection mode is hard connected with the impeller 12 or the pump turbine 18, so that the driving motor 13 controls the rotation speeds of the two to be the same; through actual use, the inventor finds that in order to maintain the flow of the infusion pump 7, the rotation speed of the driving motor 13 needs to be increased, but the rotation of the centrifugal impeller 12 for cooling liquid does not need a higher rotation speed, and a higher rotation speed of the impeller 12 is easy to cause the liquid in the containing cavity to form a vortex flow, causing the liquid level inside the impeller 12 to drop and the infusion pump 7 to have difficulty in pumping liquid, and if the rotation speed of the driving motor 13 is controlled, the flow control of the infusion pump 7 is unstable.

[0034] As an improvement, as shown in Figure 4 the second connection mode of the impeller 12, specifically, a planetary reduction gear set for speed regulation is arranged between the output shaft and the impeller wall 15, the planetary reduction gear set comprises a sun gear 20, a planetary gear 21 and a ring gear 22, the sun gear 20 is fixedly arranged on the output shaft, the ring gear 22 is fixedly connected with the impeller wall 15 and coaxially arranged with the output shaft, a plurality of planetary gears 21 are arranged between the ring gear 22 and the sun gear 20 in meshing mode, and the rotation shaft of the planetary gear 21 is fixedly arranged on the outer shell 14; in actual use, the rotation speed of the impeller 12 can be controlled at a lower level through the gear ratio control of the planetary reduction gear set, while the higher rotation speed of the pump turbine 18 is maintained, so that the smooth liquid rotary flow in the containing cavity can be better guaranteed and the separation of iron scraps is better guaranteed, and at the same time, the pump turbine 18 is kept at a higher rotation speed for pumping operation. Embodiment four

[0035] As shown in Figure 4 in this embodiment, a pre-separation conveying belt 23 is arranged on the upper side of the upper pool body 4, and the pre-separation conveying belt 23 is a hollow chain plate conveying belt; it can be understood that the pre-separation conveying belt 23 can pre-filter and separate larger block-shaped or strip-shaped iron scraps, and the conveying belt can send them out through operation, and since the transmission belt adopts a hollow structure, it will not block the falling of the cooling liquid into the upper pool body 4, at this time, the iron scraps in the upper pool body 4 are smaller iron impurities passing through the leakage holes of the conveying belt, so that the working load of the separation device can be reduced.

[0036] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A shaft boring cooling fixture, comprising a cooling liquid tank (1), characterized in that: The cooling liquid tank (1) is provided with a first separation layer (2) and a second separation layer (3) from top to bottom in sequence; the first separation layer (2) is a separation plate, and an upper pool body (4) for receiving the cooling liquid is formed on the upper side of the separation plate; the second separation layer (3) is a filter plate with filter holes; a separation cylinder wall (5) is provided between the first separation layer (2) and the second separation layer (3), and a receiving cavity is provided in the hollow interior of the separation cylinder wall (5), and a separation device is provided in the receiving cavity; the upper pool body (4) is connected to the separation cylinder wall (5) through a downcomer (6), and an infusion pump (7) is provided in the upper pool body (4); the inlet end of the infusion pump (7) is connected to the receiving cavity, and the outlet end is connected to an infusion pipe (8); The second separation layer (3) separates the lower part of the cooling liquid tank (1) into a clear liquid tank (9) and a filter residue tank (10), wherein the filter residue tank (10) is located at the lower side of the clear liquid tank (9), the lower end of the accommodating cavity is connected to the filter residue tank (10), and the upper end of the accommodating cavity is provided with an inlet pipe (11) of the infusion pump (7); The separation device comprises an impeller (12) and a drive motor (13); the impeller (12) is placed in the accommodating chamber, and the axis of the impeller (12) is arranged to coincide with the axis of the accommodating chamber; the drive motor (13) drives the impeller (12) to rotate; an outer cover (14) for waterproof isolation is provided on the outside of the drive motor (13); the downcomer (6) is connected and arranged along a tangential direction of the upper part of the accommodating chamber; The impeller (12) includes an impeller wall (15) and blades (16); the impeller wall (15) is an inverted funnel-shaped structure with a hollow interior; a plurality of blades (16) are fixedly provided on the outer periphery of the impeller wall (15); the partition cylinder wall (5) is in the shape of a truncated cone with a small upper opening and a large lower opening; and a plurality of through holes (17) are provided through the impeller wall (15); The impeller wall (15) is a vertically through-structure with an upper end having an upper opening and a lower end having a lower opening. The inlet pipe (11) is arranged along the axis of the impeller (12) and has an upper opening extending into the interior of the impeller (12). The infusion pump (7) is provided with a pump turbine (18), the pump turbine (18) and the impeller (12) are coaxially arranged, the output shaft of the output end of the drive motor (13) passes through the axis of the impeller (12) and enters the infusion pump (7) to be connected to the pump turbine (18), and the side wall of the output shaft is connected to the impeller wall (15); A planetary reduction gear set for speed regulation is provided between the output shaft and the impeller wall (15), the planetary reduction gear set comprising a central gear (20), planetary gears (21), and a ring gear (22). The central gear (20) is fixedly arranged on the output shaft, the ring gear (22) is fixedly connected to the impeller wall (15) and is coaxially arranged with the output shaft, a plurality of planetary gears (21) are meshed between the ring gear (22) and the central gear (20), and the rotating shafts of the planetary gears (21) are fixedly arranged on the outer cover (14).

2. The shaft boring cooling fixture according to claim 1, characterized in that: The output shaft side wall is fixedly connected to the impeller wall (15) via a plurality of connecting rods (19).

3. A shaft boring cooling fixture according to any one of claim 1, characterized in that: A pre-separation conveyor belt (23) is further provided on the upper side of the upper pool body (4), and the pre-separation conveyor belt (23) is a hollow chain plate conveyor belt.

Citation Information

Patent Citations

  • Cooling circulation device of numerical control machine tool

    CN115401518A

  • Impeller structure of drum separator

    CN111375497A

  • Absorbent filter equipment of coolant liquid centrifugation

    CN207682053U