Machine tool end liquid supply and return module

Abstract

The utility model discloses a machine tool end liquid supply and return module, and belongs to the field of machine tool centralized liquid supply. The machine tool liquid supply and return module comprises a machine tool water tank and further comprises a first overflow tank, a second overflow tank and a liquid supply device, a first outlet pipe is connected between the liquid transfer tank and the first overflow tank; the bottom of the liquid transfer tank is obliquely arranged from the liquid inlet end to the liquid outlet end; the filter screen is arranged in the liquid transfer tank; the oil collecting tank is arranged on the outer side of the filter screen; the pump is arranged at the liquid outlet end of the liquid transfer tank; a water suction port of the pump is positioned in the liquid transfer tank, and a water outlet of the pump is connected with external treatment equipment; a jet device is connected between a water outlet of the pump and external treatment equipment; the jet device is provided with a third inlet, and the third inlet is connected with the oil collecting groove. The liquid transfer tank is arranged at the machine tool end, and the pump and the jet device are arranged in the liquid transfer tank, so that floating oil and liquid can be transferred together and conveyed to treatment equipment, and the problem of digging a trench is solved; the machine tool end is arranged to be a liquid supply and return module, modular installation is achieved, and the installation time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of liquid centralized supply for machine tool, in particular to the field of liquid supply and return module for machine tool. BACKGROUND

[0002] In the centralized liquid supply project, some are point-to-point liquid extraction from the machine tool sink, and the purified liquid is supplied to the machine tool sink; some are using the original machine tool pump to extract liquid, and the purified liquid is directly supplied to the machine tool nozzle through the pipeline; some are overflowed from the machine tool water tank to the pipeline, and then the purified liquid is supplied to the machine tool sink. Point-to-point liquid extraction requires a pump to be installed on each machine tool, which inevitably increases the cost. The machine tool sink is usually located at the bottom of the machine tool, and the installation space is limited. In addition, there is no place to place the pump. Centralized liquid supply requires the upper layer of the machine tool sink to be extracted. The height of the machine tool sink is very shallow. If the overflow method is used, a trench or a large pipeline is needed to extract the liquid. On the one hand, not all factories have the condition to dig a trench. The trench is usually built in a new factory. If the centralized liquid supply is transformed in an existing factory, the trench cannot be dug. On the other hand, the machine tool liquid supply pipeline is under the ground, which is not conducive to maintenance. Once the liquid leaks, it is not easy to find. Moreover, through overflow, the power is insufficient, and the flow rate of the liquid in the trench or pipeline is not enough, which can easily block the pipeline.

[0003] Many existing machine tools use a through slot, and a filter screen is arranged between the machine tool liquid supply tank and the dirty liquid tank to preliminarily filter only particles, without treating the cutting fluid used by the machine tool. The machine tool liquid supplied to the machine tool is not completely purified, which can cause wear to the machine tool cutter and affect the machining precision.

[0004] Before the centralized liquid supply in many machine processing factories, machine tool liquid is usually added manually, and there is no machine tool flooding problem. After the centralized liquid supply, the liquid in the machine tool sink is always in a replacement state, with liquid continuously entering and liquid continuously discharging. If the liquid outlet is blocked, the machine tool sink will be flooded. If the liquid level meter is used to control the liquid inlet of the machine tool sink, a large number of machine tools are usually used in a factory, and a liquid level meter needs to be installed in each machine tool sink, which will increase the equipment cost. SUMMARY

[0005] The utility model discloses a kind of machine tool liquid supply and return module, liquid tank is set in machine tool end, pump and jet device are arranged in liquid tank, can float oil and liquid are taken away together, sent to processing equipment, each machine tool has corresponding liquid tank, dirty liquid of machine tool can be extracted for processing without digging trench;Machine tool end is set into liquid supply and return module, modular installation is realized, and installation time is saved.

[0006] Based on the above problems, the present scheme is as follows:

[0007] A kind of machine tool end liquid supply and return module, including machine tool sink, further comprising:

[0008] A first overflow tank is adjustably arranged in the machine tool water tank;

[0009] A rotating liquid tank is connected with the first overflow tank through a first outlet pipe; the bottom of the rotating liquid tank is arranged in a slope from the liquid inlet end to the liquid outlet end;

[0010] A filter screen is arranged in the rotating liquid tank;

[0011] An oil collecting tank is arranged outside the filter screen;

[0012] A pump is arranged at the liquid outlet end of the rotating liquid tank; the water suction port of the pump is located in the rotating liquid tank, and the water outlet port of the pump is connected with an external treatment device;

[0013] A jet device is connected between the water outlet port of the pump and the external treatment device; the jet device is provided with a third inlet connected with the oil collecting tank.

[0014] Preferably, the rotating liquid tank is provided with a treatment liquid inlet pipe; the treatment liquid inlet pipe is in a busbar structure.

[0015] Preferably, a pneumatic conveyor is arranged between the first overflow tank and the first outlet pipe; the pneumatic conveyor is provided with an air inlet port.

[0016] Preferably, the interface of the first outlet pipe with the rotating liquid tank is higher than the height of the first overflow tank; the interface of the first outlet pipe is located above the filter screen, and the filter screen filters and intercepts particulate matters or light floating sludge.

[0017] Preferably, a partition plate is arranged in the machine tool water tank; the partition plate divides the machine tool water tank into a clean liquid tank and a dirty liquid tank; the first overflow tank is arranged in the dirty liquid tank.

[0018] Preferably, the dirty liquid tank is provided with a second overflow tank; the second overflow tank is fixed; the second overflow tank is provided with an overflow plate; the height of the overflow plate is lower than that of the partition plate, and the height of the overflow plate is higher than that of the first overflow tank.

[0019] Preferably, the bottom of the second overflow tank is provided with an inclined plate, and a drainage hole is arranged at the bottom of the inclined plate; a second outlet pipe is arranged between the drainage hole and the rotating liquid tank.

[0020] Preferably, a floating ball type liquid level meter is arranged in the rotating liquid tank; a control system is arranged on the rotating liquid tank; the control system controls the pump, the valve and the liquid level meter.

[0021] Preferably, the machine tool water tanks are connected in parallel; the machine tool water tanks are combined into a main pipe connected with the rotating liquid tank.

[0022] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0023] 1. A transfer tank is used to collect the liquid containing floating oil and light scum from the machine tool water tank. An ejector is installed to extract the floating oil from the top layer and the liquid from the bottom of the transfer tank, and transport them to external treatment equipment for purification. The transfer tank is equipped with a filter screen, an oil collection tank, and an ejector, which can remove scum and prevent oil from settling in the transfer tank.

[0024] 2. The machine tool water tank is not equipped with a level gauge, nor does it have any other electrical control devices; the transfer tank can be made into an independent module that can be directly adapted to the machine tool water tank. For machine tools that cannot be excavated to allow for overflow, it can be installed quickly and the dirty liquid of the machine tool can be drained and collected.

[0025] 3. If the first outlet pipe is blocked, in order to ensure the normal operation of the machine tool, the liquid inlet pipe will continue to supply liquid, which will cause the machine tool water tank to overflow. In this case, a second overflow tank and a second outlet pipe are installed in the machine tool water tank to allow the liquid in the machine tool water tank to be drained out, thus avoiding the overflow of the machine tool water tank.

[0026] 4. Divide the machine tool water tank into a clean liquid tank and a dirty liquid tank using a partition. The clean liquid tank supplies liquid to the machine tool, while the liquid after machine tool use flows into the dirty liquid tank. Only liquid from the clean liquid tank is allowed to overflow into the dirty liquid tank to prevent dirty liquid from flowing into the clean liquid tank. This ensures that the liquid supplied to the machine tool is always clean, reducing wear on the machine tool cutting tools. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a machine tool end fluid supply and return module according to Embodiment 1.

[0028] Figure 2 This is a cross-sectional view of Example 1.

[0029] Figure 3 This is a cross-sectional view of Example 2.

[0030] Figure 4 This is a schematic diagram of the structure of a machine tool end fluid supply and return module in Example 3.

[0031] Figure 5 This is a cross-sectional view of Example 3.

[0032] In the diagram: Machine tool water tank 1, clean liquid tank 10, treatment liquid inlet pipe 100, dirty liquid tank 11, partition 12, transfer tank 2, filter screen 20, oil collection tank 21, first overflow tank 30, first outlet pipe 300, pneumatic conveyor 301, air inlet 3010, second overflow tank 31, second outlet pipe 310, drainage hole 311, overflow plate 312, pump 4, jet injector 5, third inlet 50, float-type level gauge 6, light scum 7, control system 8, machine tool 9. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0034] Example 1:

[0035] like Figures 1-3 As shown, a machine tool end-supply and return fluid module includes a machine tool water tank 1 and a transfer tank 2. The machine tool water tank 1 has a liftable first overflow tank 30. The height of the first overflow tank 30 is adjusted according to the fluid level in the machine tool water tank 1 to bring it close to the fluid level. The first overflow tank 30 is connected to the transfer tank 2 via a first outlet pipe 300. The transfer tank 2 is equipped with a filter screen 20. The side of the filter screen 20 with the inlet end is the inner side of the filter screen, and the side with the outlet end is the outer side of the filter screen. An oil collection tank 21 is located on the outer side of the filter screen. A float-type level gauge 6 is also installed in the transfer tank 2. A valve is also installed on the first outlet pipe 300.

[0036] like Figure 2 The bottom of the transfer tank 2 is inclined from the inlet to the outlet, facilitating the flow of liquid from the inlet to the outlet. The liquid flowing in from the inlet also washes away sediment at the bottom of the tank. A pump 4 is installed at the outlet of the transfer tank 2. The suction port of the pump 4 is located at the bottom of the transfer tank 2, and the outlet of the pump 4 is connected to external treatment equipment (not shown in the diagram). An ejector 5 is connected between the outlet of the pump 4 and the treatment equipment. The ejector 5 includes a third inlet 50, which is connected to the oil collection tank 21. The external treatment equipment introduces the treated clean liquid into the machine tool water tank 1. On the opposite side of the first overflow tank 30, a treatment liquid inlet pipe 100 is provided inside the machine tool water tank 1. The processing fluid inlet pipe 100 has a manifold structure; the manifold structure increases the inlet range and pushes the liquid in the machine tool water tank 1, facilitating the pushing of the oily, dirty liquid in the upper layer of the machine tool water tank 1 into the first overflow tank 30, and then into the transfer tank 2. After filtration in the transfer tank 2 and settling, the floating oil rises to the surface and overflows into the oil collection tank 21. The oil collection tank 21 stores liquid with a higher oil content, while the transfer tank stores liquid with a lower oil content. Using the ejector 5, when the pump 4 draws liquid from the transfer tank, the floating oil in the oil collection tank 21 is also drawn away, preventing the floating oil from accumulating in the transfer tank 2.

[0037] For machine tools that process plastics, some small, light scum 7 may also be introduced into the cutting fluid. Because of its low density, the light scum 7 will float on the surface of the liquid along with the floating oil and overflow into the first overflow tank 30 and be introduced into the transfer tank 2.

[0038] A control box 8 is located above the transfer tank to control the pump 4, float level gauge 6, and valves.

[0039] The working mode of a machine tool end fluid supply and return module in Example 1:

[0040] like Figures 1-2 The liquid containing floating oil or light scum on the surface of the machine tool water tank 1 is introduced into the transfer tank 2 through the first overflow tank 30. Particulate matter is trapped by the filter screen 20, causing the liquid level in the transfer tank 2 to rise. Due to settling, the floating oil rises to the surface and then overflows into the oil collection tank 21. When the float-type level gauge detects a high liquid level, the liquid level in the transfer tank 2 is slightly lower than the liquid level in the machine tool water tank. At this time, the pump 4 is started to pump liquid from the transfer tank 2, and simultaneously the ejector 5 pumps away the oil in the oil collection tank 21, reducing the deposition of floating oil in the transfer tank 2. When it is necessary to clean the particulate matter, the valve on the first outlet pipe 300 is closed, and the liquid in the transfer tank 2 is drained using the pump 4, after which the particulate matter inside the filter screen is cleaned.

[0041] Example 2:

[0042] like Figure 3 The difference from Embodiment 1 is that a pneumatic conveyor 301 is provided between the first overflow tank 30 and the transfer tank 2. The pneumatic conveyor 301 has an air inlet 3010, a material inlet, and a material outlet. High-pressure gas is introduced through the air inlet 3010, creating a negative pressure between the material inlet and the material outlet, which transports the liquid from the first overflow tank 30 to the transfer tank 2. Because the pneumatic conveyor 301 provides power, light scum, similar to microplastics, on the surface of the machine tool water tank can be carried into the first overflow tank 30 along with the floating oil and then transported to the transfer tank 2. Due to the provided power, the interface between the first outlet pipe 300 and the transfer tank 2 can be higher than the height of the first overflow tank 30. The outlet of the first outlet pipe 300 is located above the filter screen 20, which can filter and intercept the light scum. The filter screen 20 can be made into a basket structure, and when the particulate matter content in the basket reaches a certain amount, it can be removed for cleaning without stopping the machine for maintenance.

[0043] Example 3:

[0044] like Figure 4 , Figure 5 The difference from Embodiment 1 is that the machine tool water tank 1 is provided with a partition 12, which divides the machine tool water tank 1 into a clean liquid tank 10 and a dirty liquid tank 11. The clean liquid tank 10 is provided with a treatment liquid inlet pipe 100. The dirty liquid tank 11 is provided with a first overflow tank 30 and a second overflow tank 31. The second overflow tank 31 is fixed and uses the side wall of the machine tool water tank 1 as the side wall. The second overflow tank 31 is provided with an overflow plate 312. The height of the overflow plate 312 is lower than that of the partition 12 and higher than that of the first overflow tank 30.

[0045] like Figure 5During normal operation, clean liquid is supplied from the treatment liquid inlet pipe 100 into the clean liquid tank 10. As the liquid level in the clean liquid tank 10 rises and reaches the height of the baffle 12, the liquid in the clean liquid tank is supplied to the machine tool 9 via the machine tool supply pump. The dirty liquid used by the machine tool 9 is discharged into the dirty liquid tank 11. To ensure the normal operation of the machine tool, the inlet flow rate of the treatment liquid inlet pipe 100 must be greater than the machine tool supply flow rate. When the liquid level in the clean liquid tank 10 exceeds the height of the baffle 12, the liquid in the clean liquid tank 10 overflows through the baffle 12 into the dirty liquid tank; the liquid with floating oil or light scum on the upper layer of the dirty liquid tank is pushed towards the first overflow tank 30, so that the liquid with oil and light scum is collected by the transfer tank 2.

[0046] If the first outlet pipe 300 of the first overflow tank 30 becomes blocked, the liquid level in the dirty liquid tank 11 will rise. To prevent the dirty liquid from flowing into the clean liquid tank 10, the liquid level in the dirty liquid tank will first overflow into the second overflow tank 31 during the rise. The bottom of the second overflow tank is equipped with an inclined plate, and a drainage hole 311 is provided at the bottom of the inclined plate. The drainage hole 311 is connected to the second outlet pipe 310. Because the overflow plate 312 of the second overflow tank is lower than the partition plate 12, the liquid will preferentially drain from the second overflow tank 31, thereby preventing the dirty liquid tank 11 from flowing into the clean liquid tank 10. This also avoids the problem of overflow in the machine tool water tank 1.

[0047] Because the clean fluid and the dirty fluid are separated by a partition, the machine tool always uses the clean fluid, which ensures the cleanliness of the fluid used in the machine tool, reduces the wear of the machine tool tools, and improves the machining accuracy.

[0048] Example 4:

[0049] Multiple machine tools form a machine tool group, which is connected in parallel. The machine tool water tanks 1 are connected in parallel and then merged into a main pipe connected to a transfer tank 2. This configuration is suitable for machining workshops with a large number of machine tools. One machine tool group shares one transfer tank 2, reducing the number of transfer tanks 2 required and saving costs. The transfer tank 2 can be configured with a large capacity to hold the machine tool fluids for multiple machine tools.

[0050] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A machine tool end-supply and return fluid module, comprising a machine tool water tank, characterized in that, Also includes: The first overflow trough is height-adjustable and is installed inside the machine tool water tank; A transfer tank is connected to the first overflow tank by a first outlet pipe; The bottom of the liquid transfer tank is inclined from the inlet end to the outlet end; A filter screen is installed in the liquid transfer tank; An oil collection trough is located on the outside of the filter screen; A pump is installed at the outlet end of the transfer tank; the pump's suction port is located inside the transfer tank, and the pump's outlet is connected to external processing equipment. The pump outlet is connected to an ejector for external treatment equipment; the ejector has a third inlet, which is connected to the oil collection tank.

2. The machine tool end fluid supply and return module according to claim 1, characterized in that, The transfer tank is equipped with a treatment liquid inlet pipe; the treatment liquid inlet pipe is a manifold structure.

3. The machine tool end fluid supply and return module according to claim 1, characterized in that, A pneumatic conveyor is provided between the first overflow trough and the first outlet pipe, and the pneumatic conveyor is provided with an air inlet.

4. A machine tool end fluid supply and return module according to claim 3, characterized in that, The interface between the first outlet pipe and the transfer tank is higher than the height of the first overflow tank; the interface of the first outlet pipe is located above the filter screen, which filters and intercepts particulate matter or light scum.

5. A machine tool end fluid supply and return module according to claim 1, characterized in that, The machine tool water tank is equipped with a partition, which divides the machine tool water tank into a clean liquid tank and a dirty liquid tank; the first overflow tank is located in the dirty liquid tank.

6. A machine tool end fluid supply and return module according to claim 5, characterized in that, The dirty liquid tank is provided with a second overflow tank, which is fixed. The second overflow tank is provided with an overflow plate. The height of the overflow plate is lower than that of the partition plate and higher than that of the first overflow tank.

7. A machine tool end fluid supply and return module according to claim 6, characterized in that, The bottom of the second overflow tank is provided with an inclined plate, and a drainage hole is provided at the bottom of the inclined plate; a second outlet pipe is provided between the drainage hole and the liquid transfer tank.

8. A machine tool end fluid supply and return module according to claim 1, characterized in that, The transfer tank is equipped with a float-type level gauge; the transfer tank is equipped with a control system, which controls the pump, valves, and level gauge.

9. A machine tool end fluid supply and return module according to claim 1, characterized in that, The machine tool water tanks are connected in parallel, and the machine tool water tanks are combined into a main pipe that connects to the liquid transfer tank.

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