A liquid circulation chip removal mechanism for thread milling

By designing a liquid circulation chip removal system with a storage tank, tray, filter element, and cooling mechanism, the problem of low cleaning fluid circulation efficiency during thread milling is solved, achieving efficient cleaning fluid recovery and cooling effect, and ensuring machining stability and accuracy.

CN224322791UActive Publication Date: 2026-06-05NINGBO LIDE AUTOMATIC EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO LIDE AUTOMATIC EQUIP MFG CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology, the circulation efficiency of the cleaning fluid during the milling of threaded parts is low, and it is easily blocked by milling waste and debris, affecting the processing stability and accuracy.

Method used

A liquid circulation cleaning mechanism including a liquid storage tank, a tray, a filter element, and a cooling mechanism was designed. By separating large and small milling waste and actively cooling, the circulation efficiency and cleaning effect of the cleaning fluid are improved.

Benefits of technology

It effectively separates and intercepts milling waste, reduces the probability of clogging, improves the return speed and circulation efficiency of the cleaning fluid, and maintains machining accuracy and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a liquid circulating chip cleaning mechanism for thread milling, and belongs to the technical field of filtering equipment, which is used for providing a liquid circulating chip cleaning mechanism for thread milling with higher working efficiency, comprising a liquid storage cabin, the liquid storage cabin is connected with a tray through a backflow pipe, a mesh cover is arranged on the upper end inner wall of the tray, a sealing cover is connected between the backflow pipe and the liquid storage cabin, a filter core is arranged in the sealing cover, the liquid storage cabin is connected with a pump body through a liquid discharge end at the bottom, an output end of the pump body is connected with a cooling mechanism, an output end of the cooling mechanism is connected with a spray head, and the upper end of the tray is the largest and the cross section gradually decreases from top to bottom. The application is characterized in that the partition plate and the filter core are separated from each other, so that the large milling waste and the small milling chips are intercepted in sections, the blocking probability caused by the mixture and stacking of the two is reduced, the backflow resistance of the cleaning liquid is smaller, the recovery speed is faster, the chip washing efficiency is improved, and the cleaning liquid circulation efficiency is improved.
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Description

Technical Field

[0001] This application relates to the field of filtration equipment technology, and more particularly to a liquid circulation chip removal mechanism for milling threaded parts. Background Technology

[0002] During milling, a specially formulated liquid is needed to flush the contact area between the milling cutter and the workpiece. This not only removes the chips generated during milling and improves machining accuracy, but also provides lubrication for the milling cutter and the workpiece, reducing frictional heat. At the same time, the liquid can also remove the heat generated by friction, reducing thermal wear on the milling cutter and the workpiece. Therefore, in order to ensure the stability of the machining process, a continuous supply of cleaning fluid is required, which results in a relatively large consumption of cleaning fluid.

[0003] In existing technologies, a circulation method is usually used to reduce the consumption of cleaning fluid. However, due to the continuous increase of milling debris, larger milling waste and smaller milling debris accumulate together, and the return pipe is easily blocked, affecting the circulation efficiency of the cleaning fluid. Summary of the Invention

[0004] The purpose of this application is to provide a liquid circulation chip removal mechanism for thread milling with higher working efficiency.

[0005] To achieve the above objectives, this application provides a liquid circulation chip removal mechanism for thread milling: it includes a liquid storage tank, which is connected to a tray via a return pipe. A mesh cover is provided on the upper inner wall of the tray. A sealing cover is connected between the return pipe and the liquid storage tank. A filter element is provided inside the sealing cover. The liquid storage tank is connected to a pump body via a drain end at its bottom. A cooling mechanism is connected to the output end of the pump body. A nozzle is connected to the output end of the cooling mechanism for spraying circulating cleaning, lubrication, and coolant towards the contact area between the milling cutter and the workpiece.

[0006] As a preferred embodiment, the upper end of the tray is the largest, and the cross-section gradually decreases from top to bottom. The lower end of the tray is fixedly connected to the upper end of the return pipe. The upper edge of the tray has an outwardly extending connecting plate for easy fixed connection with the worktable of the milling machine.

[0007] As a preferred embodiment, the inner wall of the tray has a retaining edge, and the edge of the mesh cover rests on the retaining edge, which balances stability and ease of assembly and disassembly.

[0008] As a preferred embodiment, the upper surface of the liquid storage tank is provided with a settling groove, the liquid storage tank is provided with a liquid inlet that penetrates the inner wall at the bottom of the settling groove, the filter element is disposed in the settling groove, and the sealing cover completely covers the settling groove to prevent leakage.

[0009] As a preferred embodiment, the cooling mechanism includes an air guide frame, in which a heat dissipation bend is fixedly connected. One end of the heat dissipation bend is connected to the output end of the pump body through an inlet pipe, and the other end is connected to the nozzle through a drain pipe. The nozzle is located on the tray, which can effectively improve the tray's capacity to receive cleaning water.

[0010] As a preferred embodiment, the air guide frame has a back plate fixedly connected to one of its development ends, and a fan is provided on the back plate to actively drive the air to generate airflow.

[0011] As a preferred embodiment, the fan is located between the backplate and the heat dissipation bend, thereby protecting the fan from impact damage.

[0012] As a preferred embodiment, the air guide frame and the back plate are an integral structure made of aluminum alloy, which further improves the heat dissipation efficiency of the cooling mechanism.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] (1) By designing separate baffles and filter elements, larger milling waste and smaller milling chips are intercepted in segments, reducing the probability of blockage caused by their mixing and stacking. The backflow resistance of the cleaning fluid is smaller and the recovery speed is faster, which not only improves the efficiency of chip removal but also improves the circulation efficiency of the cleaning fluid.

[0015] (2) By configuring an active cooling mechanism, the recovered cleaning fluid can be cooled down quickly, avoiding the cleaning fluid from heating up due to continuous circulation, which is beneficial to maintaining the accuracy of milling. Attached Figure Description

[0016] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the liquid circulation chip removal mechanism used for milling threaded parts.

[0017] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the liquid circulation chip removal mechanism used for milling threaded parts.

[0018] Figure 3 This is a three-dimensional structural diagram of the tray of the liquid circulation chip removal mechanism for milling threaded parts, which is connected to the liquid storage tank via a return pipe.

[0019] Figure 4 A three-dimensional cross-sectional view of the tray of the liquid circulation chip removal mechanism for milling threaded parts, which is connected to the liquid storage tank via a return pipe.

[0020] Figure 5 A three-dimensional sectional view of the connection between the return pipe and the tray of the liquid circulation chip removal mechanism for milling threaded parts.

[0021] Figure 6 This is a three-dimensional structural diagram of the mesh cover of the liquid circulation chip removal mechanism used for milling threaded parts.

[0022] Figure 7 This is a three-dimensional cross-sectional view of the filter element and the liquid storage tank of the liquid circulation chip removal mechanism used for milling threaded parts.

[0023] Figure 8 This is a three-dimensional sectional view of the liquid storage tank of the liquid circulation chip removal mechanism used for milling threaded parts.

[0024] Figure 9 This is a first three-dimensional structural diagram of the cooling mechanism of the liquid circulation chip removal mechanism used for milling threaded parts.

[0025] Figure 10 This is a second three-dimensional schematic diagram of the cooling structure of the liquid circulation chip removal mechanism for milling threaded parts.

[0026] In the diagram: 1. Tray; 101. Edge; 102. Connecting plate; 2. Mesh cover; 3. Return pipe; 4. Sealing cover; 5. Liquid storage tank; 501. Liquid inlet; 502. Liquid outlet; 503. Settling tank; 6. Cooling mechanism; 601. Liquid inlet pipe; 602. Heat dissipation bend; 603. Liquid outlet pipe; 604. Air guide frame; 605. Back plate; 606. Fan; 7. Nozzle; 8. Filter element; 9. Pump body. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] like Figure 1-10 The liquid circulation chip removal mechanism for thread milling shown includes a reservoir 5 for storing milling cleaning fluid. The reservoir 5 is connected to a tray 1 via a return pipe 3, located below the milling tool and workpiece, to collect the cleaning fluid and milling chips. The tray 1 has a larger upper end and a gradually decreasing cross-section from top to bottom, forming a funnel shape. However, this funnel is relatively flat and does not have a large longitudinal dimension. The lower end of the tray 1 is fixedly connected to the upper end of the return pipe 3, and the cleaning fluid collected in the tray 1 flows back through a centralized channel. Inside the tube 3, the upper edge of the tray 1 has an outwardly extending connecting plate 102 for fixed connection with the worktable of the milling machine, usually located below the milling plane. The upper inner wall of the tray 1 is provided with a mesh cover 2 for intercepting larger milling waste. The inner wall of the tray 1 has a retaining edge 101, and the edge of the mesh cover 2 rests on the retaining edge 101 to maintain horizontal stability. Since the mesh cover 2 is installed without connecting parts, it is stabilized by the constraint of the retaining edge 101 and the inner wall of the tray 1, so it is very convenient to install and remove.

[0032] A sealing cap 4 connects the return pipe 3 and the liquid storage tank 5 to ensure a sealed connection between the return pipe 3 and the liquid storage tank 5. A filter element 8 is installed inside the sealing cap 4. The filter element 8 has multiple layers and can effectively intercept small milling debris in the cleaning fluid. A settling tank 503 is opened on the upper surface of the liquid storage tank 5. An inlet 501 penetrating the inner wall is opened at the bottom of the settling tank 503. The filter element 8 is placed in the settling tank 503. After being filtered by the filter element 8, the cleaning fluid enters the liquid storage tank 5 through the inlet 501. The sealing cap 4 completely covers the settling tank 503 and is fixedly connected to the upper surface of the liquid storage tank 5.

[0033] The liquid storage tank 5 is connected to a pump body 9 via a drain end 502 at the bottom, which is used to draw out and pressurize the cleaning fluid in the liquid storage tank 5. The input end of the pump body 9 is connected to the drain end 502, and the output end of the pump body 9 is connected to a cooling mechanism 6 to reduce the temperature of the cleaning fluid. The output end of the cooling mechanism 6 is connected to a nozzle 7 to re-spray the cleaned and cooled cleaning fluid onto the contact point between the milling machine and the workpiece. The cooling mechanism 6 includes an air guide frame 604, with the two ends of the air guide frame 604 having a larger area connected to allow airflow. A heat dissipation bend 602 is fixedly connected inside the air guide frame 604. The heat dissipation bend 602 is made of an alloy material with high thermal conductivity and corrosion resistance, such as aluminum bronze alloy, which can quickly dissipate the heat of the cleaning fluid. One end of the heat dissipation bend 602 is connected to... The inlet pipe 601 is connected to the output end of the pump body 9, and the other end is connected to the nozzle 7 through the drain pipe 603. The nozzle 7 is located on the tray 1, so that the cleaning fluid carrying milling debris can fall onto the tray 1 for recycling. The air guide frame 604 has a back plate 605 fixedly connected to one of its development ends. The air guide frame 604 and the back plate 605 are an integral structure made of aluminum alloy. Therefore, the air guide frame 604 and the back plate 605 also have good heat dissipation capacity, which can improve the heat dissipation efficiency of the cooling mechanism 6. A fan 606 is installed on the back plate 605 to actively drive the air to generate airflow. The fan 606 is located between the back plate 605 and the heat dissipation bend 602 to prevent the moving fan blades from colliding with other components, which is a protection for the fan 606 itself.

[0034] Working principle: During operation, the pump body 9 starts and continues to work. The low-temperature cleaning fluid is sprayed from the nozzle 7 to the contact point between the milling cutter and the workpiece being processed, flushing the milling debris away from the tool and cooling and lubricating the tool and the supply. The milling debris falls onto the tray 1 with the cleaning fluid. Larger milling waste is blocked by the mesh cover 2, while smaller debris flows along the inner wall of the tray 1 towards the return pipe 3 with the cleaning fluid. When the cleaning fluid penetrates the filter element 8 inside the sealing cover 4, the smaller debris is adsorbed and fixed by the filter element 8. The clean cleaning fluid enters the storage tank 5 through the inlet 501. The pump body 9 draws out the clean but high-temperature cleaning fluid from the storage tank 5 and delivers it to the heat dissipation bend 602 through the inlet pipe 601. Under the blowing of the fan 606, the cleaning fluid in the heat dissipation bend 602 is rapidly cooled down and finally supplied to the nozzle 7 again through the drain pipe 603 at a lower and stable temperature. This realizes the recycling of cleaning, cooling and lubricating fluid.

[0035] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A liquid circulation chip removal mechanism for milling threaded parts, characterized in that: The system includes a liquid storage tank (5), which is connected to a tray (1) via a return pipe (3). A mesh cover (2) is provided on the upper inner wall of the tray (1). A sealing cover (4) is connected between the return pipe (3) and the liquid storage tank (5). A filter element (8) is provided inside the sealing cover (4). The liquid storage tank (5) is connected to a pump body (9) via a drain end (502) at the bottom. A cooling mechanism (6) is connected to the output end of the pump body (9). A nozzle (7) is connected to the output end of the cooling mechanism (6).

2. The liquid circulation chip removal mechanism for thread milling as described in claim 1, characterized in that: The upper end of the tray (1) is the largest, and the cross-section gradually decreases from top to bottom. The lower end of the tray (1) is fixedly connected to the upper end of the return pipe (3). The upper edge of the tray (1) has an outwardly extending connecting plate (102).

3. The liquid circulation chip removal mechanism for thread milling as described in claim 2, characterized in that: The inner wall of the tray (1) has a retaining edge (101), and the edge of the mesh cover (2) rests on the retaining edge (101).

4. The liquid circulation chip removal mechanism for thread milling as described in claim 3, characterized in that: The upper surface of the liquid storage tank (5) is provided with a settling groove (503), and the liquid storage tank (5) is provided with a liquid inlet (501) that penetrates the inner wall at the bottom of the settling groove (503). The filter element (8) is placed in the settling groove (503), and the sealing cover (4) completely covers the settling groove (503).

5. The liquid circulation chip removal mechanism for thread milling as described in any one of claims 1 to 4, characterized in that: The cooling mechanism (6) includes an air guide frame (604), in which a heat dissipation bend (602) is fixedly connected. One end of the heat dissipation bend (602) is connected to the output end of the pump body (9) through an inlet pipe (601), and the other end is connected to the nozzle (7) through a drain pipe (603). The nozzle (7) is located on the tray (1).

6. The liquid circulation chip removal mechanism for thread milling as described in claim 5, characterized in that: The air guide frame (604) has a back plate (605) fixedly connected to one of its development ends, and a fan (606) is provided on the back plate (605).

7. The liquid circulation chip removal mechanism for thread milling as described in claim 6, characterized in that: The fan (606) is located between the back plate (605) and the heat dissipation bend (602).

8. The liquid circulation chip removal mechanism for thread milling as described in claim 7, characterized in that: The air guide frame (604) and the back plate (605) are an integral structure made of aluminum alloy.