Cooling liquid recovery device of machining center

By designing a combined structure of coolant recovery tank, waste outlet, transition pipe, waste collection pipe and sealing plate in the coolant recovery device of the machining center, the problem of impurities mixed in due to filter plate misalignment was solved, and efficient and pure coolant recovery and equipment performance improvement were achieved.

CN224129265UActive Publication Date: 2026-04-17JIANGSU TUOBANG ROBOT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TUOBANG ROBOT CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

During the cleaning process of existing machining center coolant recovery devices, the filter plates are prone to misalignment, causing uncleaned impurities to re-mix into the coolant, affecting the purity of the coolant and the performance of the equipment.

Method used

Design a device that includes a coolant recovery tank, a waste outlet, a transition pipe, a waste collection pipe, a sealing plate, and an adjustment component. Impurities are collected into the waste collection tank by gravity, and the sealing plate and hinge structure prevent impurities from overflowing, thus ensuring the purity and recovery efficiency of the coolant.

Benefits of technology

This effectively prevents impurities from re-mixing into the coolant, improving the purity and recovery efficiency of the coolant and ensuring the normal operation of the equipment.

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Abstract

The utility model relates to the related technical field of numerical control machine tool machining, in particular to a cooling liquid recovery device of a machining center, which comprises a cooling liquid recovery barrel, a waste discharge port, a liquid discharge port, a transition pipe, a waste collection pipe, a sealing plate, a sealing cover plate, a supporting plate, a supporting frame, an adjusting assembly and a waste collection barrel. According to the cooling liquid recycling device of the machining center, the adjusting assembly drives the waste collecting pipe to move by pushing the sealing plate, the waste collecting pipe is made to be close to the waste collecting barrel, and in the moving process, the sealing plate blocks the discharging opening of the transition pipe, and impurities are prevented from overflowing; in addition, the waste collecting pipe is hinged to the sealing cover plate, the sealing cover plate which is not supported by the supporting plate is automatically opened when the waste collecting pipe moves downwards, impurities smoothly flow into the waste collecting barrel, the impurities are prevented from being mixed into the cooling liquid again, and therefore the purity and the recycling efficiency of the recycled cooling liquid are ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of CNC machine tool processing, and in particular to a coolant recovery device for machining centers. Background Technology

[0002] A coolant recovery system in a machining center is a system used to collect, filter, and reuse coolant used in metal processing. Coolant plays a crucial role in cutting, grinding, and other machining processes by cooling tools, lubricating workpieces, and removing chips. However, used coolant can become contaminated with debris, oil, and other impurities. Direct discharge without treatment not only wastes resources but also pollutes the environment. Therefore, an effective coolant recovery system is essential for improving resource utilization and protecting the environment.

[0003] A related technology, CN219337038U, discloses a coolant recovery device for a vertical machining center. The device includes a machining center body, with a hydraulic cylinder fixedly connected to the inner side of the body. A machining head is fixedly connected to the output end of the hydraulic cylinder. An electric push rod is fixedly connected to the inner wall of the machining center body, and a clamping plate is fixedly connected to the output end of the electric push rod. This coolant recovery device for a vertical machining center, by incorporating a recovery component and a water collection tank, collects sprayed coolant. The coolant is filtered through a filter plate, which traps impurities generated during machining. Movement of the clamping plate activates a cleaning brush to remove these impurities from the filter plate. The removed impurities enter a filter box through a discharge hole. The coolant in the water collection tank is then pumped to ensure continuous spraying from the nozzles, achieving a recycling effect and preventing coolant waste.

[0004] Due to its inherent design characteristics, the coolant recovery device for machining centers mentioned above is prone to misalignment during the cleaning process due to uneven stress on the filter plate or structural design limitations. This can lead to uncleaned impurities re-entering the coolant, reducing the purity of the coolant, affecting the quality of the machined parts, and lowering the overall performance of the equipment. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes a coolant recovery device for machining centers.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a coolant recovery device for a machining center, comprising a coolant recovery tank, a waste discharge port located at the middle of the lower end face of the coolant recovery tank, a liquid discharge port located on one side of the lower end face of the coolant recovery tank, a transition pipe connected to the other end of the waste discharge port, a waste collection pipe located at the other end of the transition pipe, a sealing plate connected to the waste collection pipe, a sealing cover plate located at the end of the waste collection pipe away from the end connected to the transition pipe, a hinge between the sealing cover plate and the waste collection pipe, a support plate for supporting the sealing cover plate, a support frame fixedly connected to the support plate, an adjustment component located between the support frame and the sealing plate, and a waste collection tank for collecting impurities.

[0007] By adopting the above technical solution, the coolant is filtered and collected in a coolant recovery tank, and the filtered coolant is discharged through a drain outlet. Impurities in the waste liquid, under their own gravity, enter the transition pipe through the waste outlet in the middle of the lower end face of the coolant recovery tank, and then flow into the waste collection tank through the waste collection pipe at the lower end of the transition pipe for collection. During this process, the adjusting component moves the waste collection pipe by pushing the sealing plate, bringing the waste collection pipe closer to the waste collection tank. During the movement, the sealing plate blocks the discharge port of the transition pipe to prevent impurities from overflowing. In addition, the waste collection pipe is hinged to the sealing cover plate. When the sealing cover plate is no longer supported by the support plate, it automatically opens when the waste collection pipe moves downward, allowing impurities to flow smoothly into the waste collection tank, preventing impurities from being re-mixed into the coolant, thereby ensuring the purity and recovery efficiency of the recovered coolant.

[0008] Optionally, the transition pipe is connected to the waste discharge port via a snap-fit ​​structure or a threaded structure, and a sealing gasket is provided at the connection between the transition pipe and the waste discharge port.

[0009] By adopting the above technical solution, the transition pipe is connected to the waste discharge port by means of a snap-fit ​​structure or a threaded structure, and a sealing gasket is set at the connection, which effectively ensures the airtightness between the two and avoids the leakage of impurities in the waste liquid during the transfer process.

[0010] Optionally, the sealing plate is integrally formed with the waste collection pipe, and the inner diameter of the waste collection pipe is slightly larger than the inner diameter of the transition pipe.

[0011] By adopting the above technical solution and integrating the sealing plate with the waste collection pipe, the waste collection pipe can move synchronously when the adjusting component pushes the sealing plate, thus facilitating the collection and treatment of impurities. Specifically, the inner diameter of the waste collection pipe is slightly larger than that of the transition pipe, which ensures that impurities in the transition pipe can smoothly slide into the waste collection pipe, guaranteeing the cleanliness of the equipment and its normal operation.

[0012] Optionally, the hinge includes a connecting hinge fixedly disposed on one side of the sealing cover and a mounting plate fixedly disposed at the connection between the waste collection pipe and the support frame, with the other end of the connecting hinge being rotatably connected to the mounting plate.

[0013] By adopting the above technical solution, the hinge design enables the sealing cover to open and close flexibly. The working principle is to achieve a rotatable connection between the connecting hinge fixed on one side of the sealing cover and the mounting plate fixed at the connection between the waste collection pipe and the support frame, forming a hinge structure. The support plate provides the lower end face support force to maintain the state of the sealing cover.

[0014] Optionally, mounting holes are provided at the four corners of the support frame. The mounting holes are designed to be through-hole and are connected to the mounting surface by fasteners.

[0015] By adopting the above technical solution, mounting holes are provided at the four corners of the support frame. The mounting holes are connected to the mounting surface using fasteners. In this way, the support frame can be firmly installed on the mounting surface by fasteners, thereby ensuring the stability and safety of the support frame.

[0016] Optionally, the adjustment assembly includes a sliding groove adapted to the sealing plate on the inner side of the support frame, a connecting shaft fixedly disposed on the sealing plate at the end away from the waste collection bin, and a push-pull cylinder passing through the support frame and connected to the connecting shaft. The push-pull cylinder is fixedly disposed on the outer side of the support frame, and the telescopic shaft of the push-pull cylinder is connected to the connecting shaft.

[0017] By adopting the above technical solution, a sliding groove is set inside the support frame to cooperate with the sealing plate, and a connecting shaft is fixedly set at the end of the sealing plate away from the waste collection bucket. The horizontal movement of the sealing plate is achieved by a push-pull cylinder that passes through the support frame and is connected to the connecting shaft, thereby driving the reciprocating movement of the waste collection pipe relative to the waste collection bucket.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This utility model;

[0019] 1. The coolant is filtered and collected through the coolant recovery tank, and the filtered coolant is discharged through the drain port. Impurities in the waste liquid enter the transition pipe through the waste discharge port in the middle of the lower end face of the coolant recovery tank under its own gravity, and then flow into the waste collection tank through the waste collection pipe at the lower end of the transition pipe for collection.

[0020] 2. The adjusting component moves the waste collection pipe by pushing the sealing plate, bringing the waste collection pipe closer to the waste collection bucket. During the movement, the sealing plate blocks the discharge port of the transition pipe to prevent impurities from overflowing. In addition, the waste collection pipe is hinged to the sealing cover plate. When the sealing cover plate, which is no longer supported by the support plate, automatically opens when the waste collection pipe moves down, it allows impurities to flow smoothly into the waste collection bucket, preventing impurities from being mixed back into the coolant, thereby ensuring the purity and recovery efficiency of the recovered coolant. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the coolant recovery device for the machining center of this utility model;

[0022] Figure 2 This utility model relates to a coolant recovery device for machining centers. Figure 1 A schematic diagram of the structure in a partial half-section view;

[0023] Figure 3 This is a schematic diagram of the assembly of the waste collection pipe and the sealing cover plate in the coolant recovery device of the machining center of this utility model;

[0024] Figure 4 This is a schematic diagram of the assembly structure between the waste collection pipe and the waste collection bucket in the coolant recovery device of the machining center of this utility model.

[0025] In the picture:

[0026] 1. Coolant recovery tank; 11. Drain outlet; 12. Waste outlet; 2. Transition pipe; 3. Sealing plate; 4. Waste collection pipe; 410. Connecting hinge; 4101. Mounting plate; 41. Sealing cover plate; 411. Support plate; 5. Connecting shaft; 51. Push-pull cylinder; 6. Waste collection tank; 7. Support frame; 71. Mounting hole; 72. Slide groove Detailed Implementation

[0027] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0033] like Figures 1 to 4 As shown, a coolant recovery device for a machining center includes a coolant recovery tank 1, a waste outlet 12 located at the middle of the lower end face of the coolant recovery tank 1, a liquid outlet 11 located on one side of the lower end face of the coolant recovery tank, a transition pipe 2 connected to the other end of the waste outlet 12, and a waste collection pipe 4 located at the other end of the transition pipe 2. The transition pipe 2 and the waste outlet 12 are connected by a snap-fit ​​structure or a threaded structure, and a sealing gasket is provided at the connection between the transition pipe 2 and the waste outlet 12. By using a snap-fit ​​structure or a threaded structure to connect the transition pipe 2 and the waste outlet 12, and providing a sealing gasket at the connection, the airtightness between the two is effectively ensured, and the leakage of impurities in the waste liquid is prevented during the transfer process.

[0034] In one embodiment, please refer to [specific example]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The system involves filtering and collecting the coolant through a coolant recovery tank 1, and then discharging the filtered coolant through a drain outlet 11. Impurities in the waste liquid, under their own gravity, enter the transition pipe 2 through the waste outlet 12 at the middle of the lower end face of the coolant recovery tank 1, and then flow into the waste collection tank 6 through the waste collection pipe 4 at the lower end of the transition pipe 2 for collection.

[0035] In one embodiment, please refer to [specific example]. Figure 2 , Figure 3 and Figure 4The system includes a sealing plate 3 connected to the waste collection pipe 4, a sealing cover plate 41 located at the end of the waste collection pipe 4 away from the end connected to the transition pipe 2, a hinge between the sealing cover plate 41 and the waste collection pipe 4, a support plate 411 for supporting the sealing cover plate 41, a support frame 7 fixedly connected to the support plate 411, an adjustment component between the support frame 7 and the sealing plate 3, and a waste collection bucket 6 for collecting impurities. The adjustment component pushes the sealing plate 3 to move the waste collection pipe 4, bringing the waste collection pipe 4 closer to the waste collection bucket 6. During the movement, the sealing plate 3 blocks the discharge port of the transition pipe 2 to prevent impurities from overflowing. In addition, the waste collection pipe 4 is hinged to the sealing cover plate 41. When the sealing cover plate 41 is no longer supported by the support plate 411, it automatically opens when the waste collection pipe 4 moves down, allowing impurities to flow smoothly into the waste collection bucket 6, preventing impurities from re-mixing into the coolant, thereby ensuring the purity and recovery efficiency of the recovered coolant.

[0036] In one embodiment, please refer to [specific example]. Figure 3 and Figure 4 The sealing plate 3 and the waste collection pipe 4 are integrally formed, and the inner diameter of the waste collection pipe 4 is slightly larger than that of the transition pipe 2. This integrated design allows the waste collection pipe 4 to move synchronously when the adjusting component pushes the sealing plate 3, facilitating the collection and treatment of impurities. Specifically, the slightly larger inner diameter of the waste collection pipe 4 ensures that impurities in the transition pipe 2 can smoothly slide into the waste collection pipe 4, guaranteeing the cleanliness and normal operation of the equipment. The working principle and process are as follows: First, when the adjusting component applies a pushing force to the sealing plate 3, the sealing plate 3 moves forward together with the waste collection pipe 4; second, due to the difference in inner diameter, impurities in the transition pipe 2 can smoothly slide along the inner wall of the waste collection pipe 4 into the waste collection pipe 4; finally, these impurities are collected in the waste collection pipe 4, preventing blockage and contamination.

[0037] In one embodiment, please refer to [specific example]. Figure 1 , Figure 2 , Figure 3 and Figure 4The hinge includes a connecting hinge 410 fixedly mounted on one side of the sealing cover 41 and a mounting plate 4101 fixedly mounted at the connection between the waste collection pipe 4 and the support frame 7. The other end of the connecting hinge 410 is rotatably connected to the mounting plate 4101. The hinge design allows the sealing cover 41 to open and close flexibly. The working principle is that the connecting hinge 410 fixedly mounted on one side of the sealing cover 41 and the mounting plate 4101 fixed at the connection between the waste collection pipe 4 and the support frame 7 are rotatably connected to form a hinge structure. The support plate 411 provides support force at its lower end face to maintain the state of the sealing cover 41. Specifically, when the sealing cover 41 needs to be opened, the rotation of the connecting hinge 410 allows the sealing cover 41 to be easily opened along the hinge point; when closing, the operation is reversed, using the support force of the support plate 411 on its lower end face to make the sealing cover 41 tightly fit against the waste collection pipe 4, ensuring a good sealing effect. This design not only facilitates waste cleaning but also ensures the sealing performance of the device, improving work efficiency and safety.

[0038] In one embodiment, please refer to [specific example]. Figure 1 , Figure 2 , Figure 3 and Figure 4 The support frame 7 has mounting holes 71 at its four corners. These mounting holes 71 are through holes and are connected to the mounting surface via fasteners. This allows the support frame 7 to be securely installed on the mounting surface, ensuring its stability and safety. Specifically, during installation, the mounting holes 71 of the support frame 7 are first fixedly connected to the mounting surface using fasteners. This not only facilitates installation but also effectively improves the stability of the support frame 7, preventing displacement or loosening during use, thus ensuring the stability of the entire system and meeting usage requirements.

[0039] In one embodiment, please refer to [specific example]. Figure 2 , Figure 3 and Figure 4The adjustment assembly includes a sliding groove 72 fitted to the sealing plate 3 on the inner side of the support frame 7, a connecting shaft 5 fixedly mounted on the end of the sealing plate 3 away from the waste collection bin 6, and a push-pull cylinder 51 passing through the support frame 7 and connected to the connecting shaft 5. The push-pull cylinder 51 is fixedly mounted on the outer side of the support frame 7, and its telescopic shaft is connected to the connecting shaft 5. The horizontal movement of the sealing plate 3 is achieved through the sliding groove 72 fitted to the sealing plate 3 on the inner side of the support frame 7, and the connecting shaft 5 fixedly mounted on the end of the sealing plate 3 away from the waste collection bin 6, and through the push-pull cylinder 51 connected to the connecting shaft 5, thereby driving the reciprocating movement of the waste collection pipe 4 relative to the waste collection bin 6. The push-pull cylinder 51, as a power source, has strong stroke controllability, facilitating precise operation and ensuring that the transition pipe 2 and the waste collection pipe 4 can achieve precise alignment and connection, while maintaining the controllability of the positional relationship between the waste collection pipe 4 and the waste collection bin 6. The working principle is as follows: First, the telescopic shaft of the push-pull cylinder 51 drives the connecting shaft 5 and the sealing plate 3 to move horizontally within the slide groove 72; second, the movement of the sealing plate 3 causes the waste collection pipe 4 to move horizontally relative to the waste collection bucket 6; third, the slide groove 72 provides a stable guide for the movement of the sealing plate 3, ensuring stability during the movement process, and finally achieving precise alignment and connection between the waste collection pipe 4 and the waste collection bucket 6.

[0040] In this embodiment, during use, the coolant is filtered by the filter plate and discharged through the drain port 11 in the coolant recovery tank 1. Impurities in the waste liquid automatically enter the transition pipe 2 through the waste discharge port 12 for storage due to their own weight. The impurities then fall into the waste collection pipe 4 through the transition pipe 2 by their own gravity. When the telescopic shaft of the push-pull cylinder 51 extends, the waste collection pipe 4 moves relative to the waste collection bucket 6. During this process, the sealing plate 3 seals the discharge port of the transition pipe 2 to prevent impurities from leaking out. When the waste collection pipe 4 moves, the sealing cover 41, which is hinged to it, loses the support of the support plate 411 and opens automatically, allowing the impurities in the waste collection pipe 4 to flow smoothly into the waste collection bucket 6 for collection. This effectively prevents impurities from being mixed back into the coolant and ensures the purity of the recovered coolant. Conversely, when the telescopic shaft of the push-pull cylinder 51 retracts, the waste collection pipe 4 moves in the opposite direction to the waste collection bucket 6. The sealing cover 41 is gradually supported by the support plate 411 and seals the waste collection pipe 4. The waste collection pipe 4 gradually aligns with the discharge port of the transition pipe 2, and the sealing plate 3 gradually moves away from the discharge port of the transition pipe 2. This process is repeated to achieve the transfer of impurities.

[0041] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A coolant recovery device for a machining center, characterized by: The system includes a coolant recovery tank (1), a waste outlet (12) located at the middle of the lower end face of the coolant recovery tank (1), a drain outlet (11) located on one side of the lower end face of the coolant recovery tank, a transition pipe (2) connected to the other end of the waste outlet (12), a waste collection pipe (4) located at the other end of the transition pipe (2), a sealing plate (3) connected to the waste collection pipe (4), a sealing cover plate (41) located on the end of the waste collection pipe (4) away from the end connected to the transition pipe (2), a hinge between the sealing cover plate (41) and the waste collection pipe (4), a support plate (411) for supporting the sealing cover plate (41), a support frame (7) fixedly connected to the support plate (411), an adjustment assembly located between the support frame (7) and the sealing plate (3), and a waste collection tank (6) for collecting impurities.

2. A coolant recovery device for a machining center according to claim 1, characterized in that: The transition pipe (2) is connected to the waste outlet (12) by a snap-fit ​​structure or a threaded structure, and a sealing gasket is provided at the connection between the transition pipe (2) and the waste outlet (12).

3. The cooling liquid recovery device of a machining center according to claim 1, characterized in that: The sealing plate (3) is integrally formed with the waste collection pipe (4), and the inner diameter of the waste collection pipe (4) is slightly larger than the inner diameter of the transition pipe (2).

4. A coolant recovery device for a machining center according to claim 3, characterized in that: The hinge includes a connecting hinge (410) fixedly disposed on one side of the sealing cover plate (41) and a mounting plate (4101) fixedly disposed at the connection between the waste collection pipe (4) and the support frame (7). The other end of the connecting hinge (410) is rotatably connected to the mounting plate (4101).

5. A coolant recovery device for a machining center according to claim 3, characterized in that: The support frame (7) has mounting holes (71) at its four corners, and the mounting holes (71) are designed to be through.

6. A coolant recovery device for a machining center according to claim 2, characterized in that: The adjustment assembly includes a slide groove (72) adapted to the sealing plate (3) on the inner side of the support frame (7), a connecting shaft (5) fixedly disposed on the end of the sealing plate (3) away from the waste collection bin (6), and a push-pull cylinder (51) that passes through the support frame (7) and is connected to the connecting shaft (5).

7. A coolant recovery device for a machining center according to claim 6, characterized in that: The push-pull cylinder (51) is fixedly installed on the outside of the support frame (7), and the telescopic shaft of the push-pull cylinder (51) is connected to the connecting shaft (5).

Citation Information

Patent Citations

  • Cooling liquid recovery device for vertical machining center

    CN219337038U