Cooling water supply passage and cooling system for dual-spindle single-tool turret

Abstract

This utility model discloses a cooling water supply passage and cooling system for a dual-spindle single-turret machine tool. The cooling water supply passage includes a high-pressure cooling passage, a workpiece cooling pump, a first cooling passage, and a second cooling passage. The first and second cooling passages are independent of each other. The workpiece cooling pump connects to either the first or second cooling passage and pumps coolant. A connecting element is provided between the high-pressure cooling passage and the workpiece cooling pump. Both the first and second cooling passages are unidirectionally connected from the workpiece cooling pump to the connecting element, which in turn connects to the high-pressure cooling passage. The cooling system includes a high-pressure cooling pump with a high-pressure pump outlet and a high-pressure pump inlet. The high-pressure pump inlet connects to the connecting element in the cooling water supply passage, and the high-pressure pump outlet connects to the high-pressure cooling passage. This solution addresses the problems of excessive space occupation and low equipment utilization when supplying coolant to a dual-spindle single-turret machine tool.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for machining with dual spindles and single turrets, and in particular to a cooling water supply passage and cooling system for dual spindles and single turrets. Background Technology

[0002] A twin-spindle single-turret machine tool is a type of machining tool characterized by having two opposing machining stations. Because it is equipped with only a single tool head, it usually does not perform simultaneous machining on both axes. When the main spindle of the machine tool is machining, the secondary spindle of the machine tool is in a stopped state, and when the secondary spindle of the machine tool is machining, the main spindle of the machine tool is in a stopped state.

[0003] Based on this, when configuring cooling equipment for a dual-spindle single-turret machine tool, the coolant supply path for the main spindle machining workpiece and the coolant supply path for the sub-spindle machining workpiece are independent of each other. This ensures that the main spindle and the sub-spindle can independently complete the machining and cooling operations when machining workpieces.

[0004] In addition to cooling the workpiece being machined on the machine tool, it is also necessary to cool the turret and tool holder to prevent overheating and provide sufficient lubrication to the workpiece, thereby improving the surface finish. Therefore, current technology requires at least two to three coolant supply systems to handle the cooling operations during machining for dual-spindle single-turret machine tools. However, such a configuration not only occupies too much space but also has higher equipment costs and a higher probability of failure.

[0005] Therefore, providing a cooling water supply path and cooling system for a dual-spindle single-turret system that occupies little space and involves a simplified number of equipment is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] This utility model discloses a cooling water supply passage and cooling system for a dual-spindle single-turret machining process, in order to solve the technical problem in the related art that the cooling system involves too many devices, resulting in excessive space occupation.

[0007] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, this application provides a cooling water supply path for a dual-spindle single-turret, including a high-pressure cooling path, a workpiece cooling pump, a first cooling path and a second cooling path, wherein the first cooling path and the second cooling path are independent of each other, and the workpiece cooling pump is used to connect the first cooling path or the second cooling path and pump coolant. A junction connector is provided between the high-pressure cooling passage and the workpiece cooling pump. Both the first cooling passage and the second cooling passage are unidirectionally connected from the workpiece cooling pump to the junction connector, and the junction connector connects to the high-pressure cooling passage.

[0008] Furthermore, the workpiece cooling pump includes a first cooling pump and a second cooling pump, wherein the first cooling pump is connected to the first cooling passage and the second cooling pump is connected to the second cooling passage.

[0009] Furthermore, a first connecting member is provided on the first cooling pump, and the first connecting member is connected to the first cooling pump, the confluence connecting member and the first cooling passage respectively; A second connecting member is provided on the second cooling pump, and the second connecting member is connected to the second cooling pump, the confluence connecting member and the second cooling passage respectively.

[0010] Furthermore, a first connecting pipe is provided between the first cooling pump and the junction connector, with one end of the first connecting pipe connected to the first cooling pump and the other end connected to the junction connector; A second connecting pipe is provided between the second cooling pump and the junction connector, with one end of the second connecting pipe connected to the second cooling pump and the other end connected to the junction connector; The first connecting pipe and the second connecting pipe are independent of each other.

[0011] Furthermore, both the first connecting pipe and the second connecting pipe are flexible tubes.

[0012] Furthermore, a first valve is provided between the first cooling passage and the junction connector, and the first valve provides one-way communication from the first cooling passage to the junction connector; A second valve is provided between the second cooling passage and the junction connector, and the second valve provides one-way communication from the second cooling passage to the junction connector.

[0013] Furthermore, the connection positions of the first valve and the connecting member, and the connection positions of the second valve and the connecting member, are staggered in the circumferential direction of the connecting member.

[0014] Secondly, this application provides a cooling system for a dual-spindle single-turret, including a high-pressure cooling pump. The high-pressure cooling pump is provided with a high-pressure pump outlet and a high-pressure pump inlet. The high-pressure pump inlet is connected to the junction connector in the cooling water supply passage for a dual-spindle single-turret as described in the first aspect of this application, and the high-pressure pump outlet is connected to the high-pressure cooling passage.

[0015] Furthermore, the height of the high-pressure pump inlet is lower than the height of the high-pressure pump outlet.

[0016] Furthermore, it also includes an oil tanker, wherein the high-pressure cooling pump is provided with an overflow port, and the overflow port is connected to the oil tanker.

[0017] The technical solution adopted in this utility model can achieve the following beneficial effects: The first and second cooling passages in this application need to supply coolant to the workpiece and also to the high-pressure cooling passage. Since the first and second cooling passages will not operate simultaneously, the purpose of avoiding the exchange of fluid between the first and second cooling passages is achieved by keeping the first and second cooling passages independent of each other. Both the first cooling passage and the second cooling passage are connected to the high-pressure cooling passage through the converging connector. The converging connector can avoid configuring too many connecting pipes and coolant supply equipment when supplying coolant to the high-pressure cooling passage, thereby reducing space occupation. At the same time, since the number of equipment is reduced after converging, the overall failure rate of this application can also be reduced, and the stability of the cooling process can be improved. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 This is a diagram showing the coolant flow direction when the first cooling passage is opened according to an embodiment of this application; Figure 3 This is a diagram showing the flow direction of coolant when the second cooling passage is opened in an embodiment of this application.

[0020] In the diagram: 100, high-pressure cooling pump; 110, high-pressure pump outlet; 120, overflow port; 130, high-pressure pump inlet; 200, high-pressure cooling passage; 310, first valve; 320, second valve; 410, first cooling pump; 420, second cooling pump; 500, first connecting component; 600, first cooling passage; 700, second cooling passage; 800, second connecting component; 900, confluence connecting component. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] Currently, dual-axis single-tool machine tools are a widely used type of machine tool in the machining field. Because these machines are equipped with two machining axes—a main spindle and a sub-spindle—and a tool holder, the main spindle and sub-spindle typically do not operate simultaneously during actual machining. When the main spindle is machining, the sub-spindle is idle, and vice versa. However, when machining long shaft parts, the main and sub-spindles can clamp the workpiece simultaneously, allowing for concurrent machining. In this case, coolant supply can be activated for main spindle cooling, sub-spindle cooling, and turret high-pressure cooling. Turret high-pressure cooling is supplied with coolant by both main and sub-spindle cooling systems. However, dual-axis single-tool machine tools typically do not operate under these conditions; other types of machine tools are used for machining such parts. Due to the spatial separation between the main and sub-spindles, current technology requires separate cooling pathways for each spindle to cool the workpiece during machining. If the tool holder still needs to be cooled, more cooling-related equipment needs to be configured for the cooling path of the tool turret and tool holder. This configuration requires at least two to three sets of coolant supply equipment to ensure that the spindle, sub-spindle and tool holder can all receive coolant. Too much equipment configuration will occupy too much space, thereby reducing the utilization rate of the factory's internal space.

[0024] This application considers that coolant from both the main spindle and the sub-spindle can be supplied to the tool holder, and that the types of coolant required by the main spindle, sub-spindle, and tool holder are not differentiated. Therefore, the coolant from both the main spindle and sub-spindle can serve as a source of coolant for the tool holder, thus reducing the number of coolant supply sources. Furthermore, supplying coolant to the tool holder from both the main spindle and sub-spindle through the same channel effectively reduces the number of devices required in the supply process, thereby reducing equipment usage. With fewer supply sources and less equipment, the space required for cooling operations is also reduced, thus improving the utilization rate of the factory's internal space.

[0025] The following is in conjunction with the appendix Figures 1 to 3 The cooling water supply path for a dual-spindle single-turret provided in this application is described in detail through specific embodiments and application scenarios.

[0026] Please see Figure 1 This application discloses a cooling water supply path for a dual-spindle single-turret system. The disclosed cooling water supply path includes a high-pressure cooling path 200, a workpiece cooling pump, a first cooling path 600, and a second cooling path 700. The first cooling path 600 and the second cooling path 700 are independent of each other. The high-pressure cooling path 200 is used to pressurize the coolant and supply coolant to the turret and tool holder. The coolant in the high-pressure cooling path 200 is the same as the coolant in the first cooling path 600 and the second cooling path 700. The first cooling path 600 or the second cooling path 700 corresponds to the machining cooling operation of the main spindle or the sub-spindle, respectively. Because the main spindle and the sub-spindle must provide sufficient space for the workpiece, their machining spaces are relatively independent. Therefore, the first cooling path 600 and the second cooling path 700 also need to remain independent to complete the coolant supply to the workpiece. If coolant needs to be introduced into the high-pressure cooling passage 200 at this time, a coolant supply device needs to be configured separately or coolant needs to be obtained from the first cooling passage 600 and the second cooling passage 700.

[0027] The workpiece cooling pump is used to connect the first cooling passage 600 or the second cooling passage 700 and pump coolant. When supplying coolant to the first cooling passage 600 or the second cooling passage 700, since the main spindle and the sub-spindle usually do not perform workpiece processing at the same time, the first cooling passage 600 and the second cooling passage 700 will not work at the same time. Therefore, it is necessary to avoid supplying coolant to the first cooling passage 600 and the second cooling passage 700 at the same time to avoid coolant loss and waste of resources and energy. In this embodiment, the workpiece cooling pump is disconnected from the second cooling passage 700 when connected to the first cooling passage 600, and disconnected from the first cooling passage 600 when connected to the second cooling passage 700.

[0028] A junction connector 900 is provided between the high-pressure cooling passage 200 and the workpiece cooling pump. Both the first cooling passage 600 and the second cooling passage 700 are unidirectionally connected from the workpiece cooling pump to the junction connector 900, which in turn connects to the high-pressure cooling passage 200. In this embodiment, the high-pressure cooling passage 200 is supplied with coolant through the first cooling passage 600 and the second cooling passage 700. However, if both the first cooling passage 600 and the second cooling passage 700 independently supply coolant to the high-pressure cooling passage 200, two sets of supply-related equipment would be required. Therefore, the most convenient approach is to use the same set of supply-related equipment to supply coolant to the high-pressure cooling passage 200 from both the first cooling passage 600 and the second cooling passage 700.

[0029] If the same set of related equipment is used to supply coolant to the high-pressure cooling passage 200 through both the first cooling passage 600 and the second cooling passage 700, there is a risk of energy waste, and the heat generated by the coolant is detrimental to the stable operation of the equipment. When the first cooling passage 600 is working and supplying coolant to the high-pressure cooling passage 200, there is a risk that coolant may flow into the second cooling passage 700, and vice versa. Therefore, during this process, there may be a problem of coolant leakage from the first cooling passage 600 or the second cooling passage 700 when the equipment is stopped.

[0030] In the cooling operation of a dual-axis single-tool machine tool, this embodiment utilizes independent first and second cooling passages 600 and 700 to effectively supply coolant to the high-pressure cooling passage 200 without adding excessive coolant supply equipment, thus saving machine tool space. This embodiment also prevents fluid flow between the first and second cooling passages 600 and 700 by unidirectionally connecting both the first and second cooling passages 600 to the junction connector 900, thereby ensuring that no coolant appears at the sub-spindle when the main spindle is running and the sub-spindle is stopped, and vice versa.

[0031] Please see Figure 2 , Figure 3 In this embodiment, the workpiece cooling pump includes a first cooling pump 410 and a second cooling pump 420. The first cooling pump 410 is connected to the first cooling passage 600, and the second cooling pump 420 is connected to the second cooling passage 700. This embodiment completely isolates the pumping channels of the first cooling passage 600 and the second cooling passage 700 by respectively establishing the first cooling pump 410 and the second cooling pump 420, thereby preventing the risk of coolant flowing to the shutdown position during pumping to the first cooling passage 600 or the second cooling passage 700.

[0032] Based on this, if an industrial cooling pump is used to pump the first cooling passage 600 and the second cooling passage 700, and the prerequisite is that when the main spindle is running and the auxiliary spindle is stopped, no coolant will appear at the auxiliary spindle, and when the auxiliary spindle is running and the main spindle is stopped, no coolant will appear at the main spindle, it is necessary to install a valve and connecting joint separating the two passages on a single pump. In actual procurement, the value of the required accessories is already higher than the value of the pump used, and there is also a higher failure rate. Therefore, in order to reduce the failure rate and reduce equipment costs when pumping to the first cooling passage 600 and the second cooling passage 700, this embodiment of the application configures a first cooling pump 410 for the first cooling passage 600 and a second cooling pump 420 for the second cooling passage 700, so that the first cooling passage 600 and the second cooling passage 700 can independently obtain pumped coolant, avoiding the risk of pumping errors and ensuring proper cost control.

[0033] In this embodiment, a first connecting member 500 is provided on the first cooling pump 410. The first connecting member 500 is connected to the first cooling pump 410, the confluence connecting member 900, and the first cooling passage 600. The first connecting member 500 is used to deliver the pumped coolant to the first cooling passage 600 and the confluence connecting member 900. The first connecting member 500 is positioned between the first cooling passage 600 and the confluence connecting member 900, thereby reducing the mutual flow of coolant between the confluence connecting member 900 and the coolant in the first cooling passage 600. This reduces the probability of debris formed by the workpiece entering the confluence connecting member 900 in the first cooling passage 600, thus protecting the equipment in the confluence connecting member 900 and the high-pressure cooling passage 200.

[0034] A second connecting member 800 is provided on the second cooling pump 420. The second connecting member 800 is connected to the second cooling pump 420, the confluence connecting member 900, and the second cooling passage 700. The second connecting member 800 is used to deliver the pumped coolant to the second cooling passage 700 and the confluence connecting member 900. The second connecting member 800 is positioned between the second cooling passage 700 and the confluence connecting member 900 to reduce the mutual flow of coolant between the confluence connecting member 900 and the coolant in the second cooling passage 700. This reduces the probability of debris formed by the workpiece entering the confluence connecting member 900 in the second cooling passage 700, thereby protecting the equipment in the confluence connecting member 900 and the high-pressure cooling passage 200.

[0035] The embodiments of this application, through the provision of the first connecting member 500 and the second connecting member 800, can effectively provide a more suitable pumping channel for the first cooling pump 410 and the second cooling pump 420, thereby avoiding the risk of accidental equipment damage or blockage of the flow channel caused by the coolant circulating back and forth after being pumped out of the first cooling pump 410 and the second cooling pump 420.

[0036] In this embodiment of the application, a first connecting pipe is provided between the first cooling pump 410 and the junction connector 900, one end of the first connecting pipe is connected to the first cooling pump 410, and the other end is connected to the junction connector 900.

[0037] A second connecting pipe is provided between the second cooling pump 420 and the junction connector 900. One end of the second connecting pipe is connected to the second cooling pump 420, and the other end is connected to the junction connector 900. The first connecting pipe and the second connecting pipe are independent of each other.

[0038] Since there is a gap between the positions of the first cooling pump 410 and the second cooling pump 420 and the high-pressure cooling passage 200, the embodiments of this application connect the gap space by setting the first connecting pipe and the second connecting pipe, and ensure that the first cooling passage 600 and the second cooling passage 700 in the gap space are not connected by the independence of the first connecting pipe and the second connecting pipe, that is, the possibility of fluid communication between the first cooling passage 600 and the second cooling passage 700 is eliminated.

[0039] In this embodiment, both the first and second connecting pipes are flexible hoses. Since modern factory buildings are typically limited by their spatial layout, the available space is limited, and cost constraints prevent large-scale site alterations. Therefore, this embodiment uses flexible hoses for the first and second connecting pipes to adapt to the site layout, ensuring the connection of the first cooling pump 410, the second cooling pump 420, and the junction connector 900 within a limited space. Flexible hoses also facilitate pipe relocation, adapting to changes in equipment placement. Furthermore, the hoses act as shock absorbers during connection, preventing vibrations from affecting the overall stability of the equipment. When receiving pumped liquid, flexible hoses also prevent damage caused by excessive local pressure at turning points, ensuring the embodiment can operate for a longer period.

[0040] In this embodiment, a first valve 310 is provided between the first cooling passage 600 and the junction connector 900. The first valve 310 provides one-way communication from the first cooling passage 600 to the junction connector 900. The first valve 310 can be a one-way valve, check valve, or solenoid valve, which can restrict one-way flow. This forms a one-way flow restriction between the first cooling passage 600 and the junction connector 900, thereby preventing fluid in the junction connector from flowing back into the first cooling passage 600. That is, when there is no fluid in the first cooling passage 600, the fluid pumped by the second cooling passage 700 will not flow into the first cooling passage 600 from the junction connector.

[0041] A second valve 320 is provided between the second cooling passage 700 and the connecting member 900. The second valve 320 provides one-way communication from the second cooling passage 700 to the connecting member 900. The second valve 320 can also be a one-way valve, a check valve, or a solenoid valve, which can restrict one-way flow. Since the procurement cost of solenoid valves is high, this embodiment of the application preferentially uses a one-way valve to form a one-way flow passage restriction between the second cooling passage 700 and the connecting member 900, thereby preventing the fluid in the connecting member from flowing back into the second cooling passage 700. That is, when there is no fluid in the second cooling passage 700, the fluid pumped by the first cooling passage 600 will not flow into the second cooling passage 700 from the connecting member.

[0042] In this embodiment, by setting independent first valves 310 and second valves 320, the fluid flowing through the first cooling passage 600 into the connecting member 900 and the fluid flowing through the second cooling passage 700 into the connecting member 900 can maintain their independence. This ensures that even if there is a partial leak in the first valve 310 or the second valve 320, this embodiment can still effectively isolate the flow between the first cooling passage 600 and the second cooling passage 700. By setting the first valve 310 to restrict the backflow in the first cooling passage 600 and the second valve 320 to restrict the backflow in the second cooling passage 700, the workload of the first valve 310 and the second valve 320 is reduced, resulting in a longer service life.

[0043] In this embodiment, the communication positions of the first valve 310 and the connecting member 900, and the communication positions of the second valve 320 and the connecting member 900, are staggered in the circumferential direction of the connecting member 900. This staggered communication position of the first valve 310 and the second valve 320 on the connecting member 900 avoids prolonged and significant impact from the fluid flowing through the first valve 310 and the second valve 320 on a localized area of ​​the connecting member 900, which could reduce its service life and cause safety issues. For example, when the first valve 310 is open and the second valve 320 is closed, if the first valve 310 and the second valve 320 are at the same position in the circumferential direction of the connecting member 900, the second valve 320 will constantly be subjected to the impact of the fluid flowing through the first valve 310, resulting in a reduced service life. However, if the first valve 310 and the second valve 320 are staggered in the circumferential direction, the second valve 320 only needs to withstand static pressure for most of the time, thus ensuring the safe use of the valve for a longer period.

[0044] Meanwhile, during fluid flow, the circumferentially staggered first valve 310 and second valve 320 can also prevent turbulence or other fluid flow obstacles from occurring within the confluence connector 900, thus avoiding problems with fluid flow obstruction within the confluence connector. For example, if the first valve 310 and second valve 320 are in the same position circumferentially, when the first valve 310 is opened and the second valve 320 is closed, the fluid will also impact the second valve 320 and reverberate back towards the first valve 310, thus causing flow interference between the first valve 310 and the second valve 320. However, if the first valve 310 and second valve 320 are staggered circumferentially, the changes in fluid flow can be absorbed through the internal space of the confluence connector 900, greatly reducing the degree of mutual influence of fluid flow and thus ensuring a smoother fluid flow process.

[0045] In the embodiments of this application, see Figure 2 As shown, when the first cooling pump 410 is turned on, fluid can flow out of the first valve 310, while fluid cannot flow into the second valve 320. Coolant is introduced into the first cooling passage 600 and the connecting member 900 through the first cooling pump 410. The second valve 320 prevents coolant from flowing into the second cooling passage 700. The high-pressure cooling passage 200 receives the coolant and acts on the cooling of the turret and tool holder.

[0046] See Figure 3 As shown, when the second cooling pump 420 is turned on, fluid can flow out of the second valve 320, while fluid cannot flow into the first valve 310. The coolant is introduced into the second cooling passage 700 and the confluence connector 900 through the second cooling pump 420. The first valve 310 prevents the coolant from flowing into the first cooling passage 600. The high-pressure cooling passage 200 receives the coolant and acts on the cooling of the turret and tool holder.

[0047] Please continue reading Figure 1 This application discloses a cooling system for a dual-spindle single-turret, including a high-pressure cooling pump 100. The high-pressure cooling pump 100 has a high-pressure pump outlet 110 and a high-pressure pump inlet 130. The high-pressure pump inlet 130 is connected to a junction connector 900 in the cooling water supply passage for the dual-spindle single-turret, and the high-pressure pump outlet 110 is connected to the high-pressure cooling passage 200. The high-pressure cooling pump 100 is used to pressurize the fluid flowing into it, thereby enabling the high-pressure coolant to act on the cooling of the turret and tool holder. The high-pressure pump inlet 130 obtains coolant through the junction connector 900, and the pressurized coolant is discharged from the high-pressure pump outlet 110, so that the high-pressure cooling passage 200 can obtain coolant with sufficient pressure.

[0048] In this embodiment, the height of the high-pressure pump inlet 130 is lower than the height of the high-pressure pump outlet 110. The lower height of the high-pressure pump inlet 130 allows the coolant to be pressurized as it flows from a lower to a higher level. This embodiment avoids the risk of pressure leakage during pressurization when the fluid height decreases due to extreme conditions. For example, in cases of oversized equipment or partial leakage, the height difference between the high-pressure pump inlet 130 and the high-pressure pump outlet 110 can be effectively utilized to enhance the stability of the pressurization process, thereby reducing the risk of pressure leakage.

[0049] It also includes an oil tanker, and the high-pressure cooling pump 100 is provided with an overflow port 120, which is connected to the oil tanker.

[0050] This application embodiment utilizes an oil tanker and an overflow port 120 to ensure the normal operation of the high-pressure cooling pump 100.

[0051] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0052] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0053] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A cooling water supply passage for a dual-spindle single-turret system, characterized in that, It includes a high-pressure cooling passage (200), a workpiece cooling pump, a first cooling passage (600) and a second cooling passage (700), the first cooling passage (600) and the second cooling passage (700) are independent of each other, and the workpiece cooling pump is used to connect the first cooling passage (600) or the second cooling passage (700) and pump coolant. A junction connector (900) is provided between the high-pressure cooling passage (200) and the workpiece cooling pump. The first cooling passage (600) and the second cooling passage (700) are both unidirectionally connected from the workpiece cooling pump to the junction connector (900), and the junction connector (900) is connected to the high-pressure cooling passage (200).

2. The cooling water supply passage for a dual-spindle single-turret according to claim 1, characterized in that, The workpiece cooling pump includes a first cooling pump (410) and a second cooling pump (420), the first cooling pump (410) being connected to the first cooling passage (600), and the second cooling pump (420) being connected to the second cooling passage (700).

3. The cooling water supply passage for a dual-spindle single-turret according to claim 2, characterized in that, A first connecting member (500) is provided on the first cooling pump (410), and the first connecting member (500) is connected to the first cooling pump (410), the confluence connecting member (900) and the first cooling passage (600) respectively; A second connecting member (800) is provided on the second cooling pump (420), and the second connecting member (800) is connected to the second cooling pump (420), the confluence connecting member (900) and the second cooling passage (700) respectively.

4. The cooling water supply passage for a dual-spindle single-turret according to claim 2, characterized in that, A first connecting pipe is provided between the first cooling pump (410) and the junction connector (900), with one end of the first connecting pipe connected to the first cooling pump (410) and the other end connected to the junction connector (900). A second connecting pipe is provided between the second cooling pump (420) and the junction connector (900), with one end of the second connecting pipe connected to the second cooling pump (420) and the other end connected to the junction connector (900). The first connecting pipe and the second connecting pipe are independent of each other.

5. The cooling water supply passage for a dual-spindle single-turret according to claim 4, characterized in that, Both the first connecting pipe and the second connecting pipe are flexible tubes.

6. The cooling water supply passage for a dual-spindle single-turret according to any one of claims 1 to 5, characterized in that, A first valve (310) is provided between the first cooling passage (600) and the junction connector (900), and the first valve (310) is unidirectionally connected from the first cooling passage (600) to the junction connector (900); A second valve (320) is provided between the second cooling passage (700) and the junction connector (900), and the second valve (320) is unidirectionally connected from the second cooling passage (700) to the junction connector (900).

7. The cooling water supply passage for a dual-spindle single-turret according to claim 6, characterized in that, The connection positions of the first valve (310) and the junction connector (900) and the second valve (320) and the junction connector (900) are staggered in the circumferential direction of the junction connector (900).

8. A cooling system for a dual-spindle single-turret system, characterized in that, It includes a high-pressure cooling pump (100), which is provided with a high-pressure pump outlet (110) and a high-pressure pump inlet (130). The high-pressure pump inlet (130) is connected to the junction connector (900) in the cooling water supply passage for a dual-spindle single turret as described in any one of claims 1 to 7, and the high-pressure pump outlet (110) is connected to the high-pressure cooling passage (200).

9. The cooling system for a dual-spindle single-turret according to claim 8, characterized in that, The height of the high pressure pump inlet (130) is lower than the height of the high pressure pump outlet (110).

10. The cooling system for a dual-spindle single-turret according to claim 8, characterized in that, It also includes an oil tanker, wherein the high-pressure cooling pump (100) is provided with an overflow port (120), and the overflow port (120) is connected to the oil tanker.

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