Static casting cooling water tank

Abstract

The static casting cooling water tank comprises a lower-layer water tank, an upper-layer water tank, a water level adjusting assembly, a water inlet part and a water drainage pipe, the upper-layer water tank comprises an upper water tank body, the water tank body is located above the lower water tank body, the circumferential direction of the upper water tank body does not exceed the circumferential direction of the lower water tank body, and a workpiece is placed in the upper water tank body; cooling water enters the upper water tank main body through the water inlet part, at least one gap is formed in the circumferential side wall of the upper water tank main body at intervals, and the water level adjusting assembly is used for adjusting the opening degree of the gap so as to adjust the water level in the upper water tank main body. The water level in the upper-layer water tank can be adjusted, the cooling device is suitable for cooling casting parts with different thicknesses, the two water pipes are arranged and are suitable for cooling solid tile blanks and hollow tile blanks, it is guaranteed that the respective cooling pressure meets the cooling requirement, efficient cooling is achieved, and the cooling device is suitable for fixing annular water inlet pipes with different annular diameters; the cooling water tank is simple to use, safe and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of casting cooling water tanks, and specifically relates to a static casting cooling water tank. Background Art

[0002] Casting is a metal processing technology. By pouring molten metal (such as babbit alloy, etc.) into a mold (tile blank), parts or products of the required shape are formed after cooling. To improve the casting efficiency, the mold can be cooled through a casting water tank. The traditional static casting water tank is a brick-built pool in the form of a platform. During casting, workers are on duty to visually observe the static casting cooling water level, and adjust the start and stop of the water pump and the opening and closing of the drain air valve according to the current water level size to control the water level. Sometimes people need to stand on the top of the platform for casting. Obviously, the above-mentioned existing brick-built pool has relatively high technical requirements for people, large workload of workers, and is not safe enough. The space occupied by the four corners of the brick-built pool delays the rise of the water level, that is, delays the rapid cooling, and the casting cooling takes a long time. Summary of the Invention

[0003] Aiming at the above problems existing in the prior art, the purpose of the present invention is to provide a static casting cooling water tank. The water level adjustment component can adjust the water level in the upper water tank, which is suitable for the cooling of castings with different thicknesses, reduces the labor intensity of workers, sets two groups of water pipes, which are respectively suitable for the cooling of solid tile blanks and hollow tile blanks while ensuring that the respective cooling pressures meet the cooling requirements, realizes efficient cooling, and the switching between the two groups of water pipes is simple and convenient; the water pipe fixing part has universality and is suitable for the fixing of annular water inlet pipes with different annular diameters; the cooling water tank is simple to use, safe and reliable.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A static casting cooling water tank includes a lower water tank, an upper water tank, a water level adjustment component, a water inlet part and a drain pipe. The upper water tank includes an upper water tank main body, and the upper water tank main body is a container without a cover. The lower water tank includes a lower water tank main body, and the lower water tank main body is a container without a cover. The upper water tank main body is located above the lower water tank main body, and the circumference of the upper water tank main body does not exceed the circumference of the lower water tank main body. The workpiece to be cast and cooled is placed in the upper water tank main body for cooling. The cooling water enters the upper water tank main body through the water inlet part, and the water after cooling is discharged through the drain pipe. At least one gap arranged at intervals is provided on the circumferential side wall of the upper water tank main body, and the water level adjustment component is used to adjust the opening degree of the gap to adjust the water level in the upper water tank main body.

[0006] As a further improvement of the above technical solution:

[0007] The water level adjustment component includes a sliding plate and a regulating valve. The sliding plate is located at the gap on the side wall of the upper water tank main body, and the regulating valve is connected to and drives the sliding plate to rise or fall to realize the adjustment of the opening degree of the gap on the side wall of the upper water tank main body.

[0008] The regulating valve includes a screw rod, an operating member, and a nut. The nut is fixedly installed on the sliding plate. The screw rod passes through the nut and the two are threadedly connected. The lower end of the screw rod is rotatably installed on the bottom plate of the upper water tank main body, and the upper end passes through the nut and then is connected to the operating member for manual operation. By adjusting the operating member, the screw rod rotates self - rotatably, and the screw rod drives the nut screwed thereto to move along the length direction of the screw rod, and the nut drives the sliding plate to move synchronously.

[0009] The water level regulating assembly further includes a U - shaped plate and a sliding plate connecting member. The U - shaped plate is a U - shaped plate - like structure. The number of the sliding plates, regulating valves, U - shaped plates, and the notches on the side wall of the upper water tank main body are the same. Each U - shaped plate is respectively connected to each notch on the side wall of the upper water tank main body. Each sliding plate corresponds to each U - shaped plate, and each regulating valve is respectively connected to each sliding plate. The U - shaped plate does not block the notch. There are two sliding plate connecting members and two parallel and spaced long - strip through - holes on the U - shaped plate. The two sliding plate connecting members pass through the corresponding sliding plates and then respectively pass through the two long - strip through - holes on the U - shaped plate, and are then limited by limit members. The sliding plate connecting members can move along the through - holes on the U - shaped plate, driving the sliding plate to move along the length direction of the through - holes on the U - shaped plate. There are scales for marking the position of the sliding plate on the U - shaped plate.

[0010] The water inlet part includes a main water inlet pipe and a main inlet pipe. One end of the main inlet pipe is connected to the main water inlet pipe, and the other end passes through the bottom plate of the lower water tank main body and the bottom plate of the upper water tank main body from bottom to top in sequence and then enters the upper water tank main body. The end of the main inlet pipe extending into the upper water tank main body is detachably connected to a cover plate. There is a through - hole on the cover plate, and the aperture of the through - hole on the cover plate is smaller than the pipe diameter of the main inlet pipe.

[0011] The water inlet part further includes an annular water inlet part. The annular water inlet part includes a secondary inlet pipe, an annular inlet pipe, and a plurality of universal nozzles. One end of the secondary inlet pipe is connected to the main water inlet pipe, and the other end is connected to the annular inlet pipe. The annular inlet pipe is an annular water pipe, and a plurality of universal nozzles are installed on the annular inlet pipe at intervals.

[0012] The annular inlet pipe is fixed on the bottom plate of the upper water tank main body through a water pipe fixing member. There are a plurality of water pipe fixing members, which are arranged at intervals along the circumferential direction of the annular inlet pipe.

[0013] The water pipe fixing member includes a pipe clamp and a slide rail. The slide rail is fixedly installed on the bottom plate of the upper water tank main body. The pipe clamp is slidably arranged on the slide rail and can clamp the water pipe at the same time. The slide rails of a plurality of water pipe fixing members are radially arranged around the same center.

[0014] Grid plates for people to step on are provided on both the lower water tank main body and the upper water tank main body.

[0015] A plurality of workpiece support members for supporting the workpiece to be cooled are provided on the bottom plate of the upper water tank main body. The plurality of workpiece support members are arranged at intervals, and the height of the workpiece support members is adjustable.

[0016] The beneficial effects of the present invention are as follows: The water level adjusting component can adjust the water level in the upper water tank, which is applicable to the cooling of castings with different thicknesses, reducing the labor intensity of workers. Two groups of water pipes are provided, which are respectively applicable to the cooling of solid and hollow tile blanks while ensuring that their respective cooling pressures meet the cooling requirements, realizing efficient cooling. The switching between the two groups of water pipes is simple and convenient; the water pipe fixing member is universal and applicable to the fixing of annular water inlet pipes with different annular diameters; the cooling water tank is simple to use, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of a ring-shaped hollow tile blank supported on a cooling water tank according to an embodiment of the present invention.

[0018] Figure 2 is a schematic structural view of an embodiment of the present invention.

[0019] Figure 3 is a schematic structural view of another perspective of an embodiment of the present invention without showing the grille plate.

[0020] Figure 4 is a schematic structural view of the lower water tank according to an embodiment of the present invention.

[0021] Figure 5 is a schematic structural view of the annular water inlet part and the water pipe fixing member according to an embodiment of the present invention.

[0022] Figure 6 is Figure 3 an enlarged schematic structural view of part A of

[0023] Figure 7 is Figure 6 a schematic structural view of after removing the slide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0025] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientation of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein are made accordingly.

[0026] A stationary casting cooling water tank, as Figures 1 to 7 shown, includes a lower water tank 1, an upper water tank 2, a water level adjustment component 3, a water inlet part, and a drain pipe 5.

[0027] The upper water tank 2 is located above the lower water tank 1, and the workpiece 6 to be cast and cooled is placed in the upper water tank 2 for cooling. The water level adjustment component 3 is used to adjust the water level in the upper water tank 2 to meet the cooling requirements of different workpieces 6 while reducing water consumption. The cooling water enters the upper water tank 2 through the water inlet part, and the water after cooling is discharged through the drain pipe 5. Among them, the workpiece 6 includes a tile blank and metal, and the molten high-temperature metal to be cooled is placed in the tile blank, and the metal solidifies into a shape after cooling. In this embodiment, the solid tile blank refers to a container such as a cuboid or a cylinder, and the correspondingly cooled and formed metal is a continuous structure such as a cuboid or a cylinder. The hollow tile blank is an annular container, and the correspondingly cooled and formed metal is annular.

[0028] The lower water tank 1 is as Figures 1 to 3 shown, and includes a lower water tank main body 11, foot cups 12, an upper water tank support member 13, and a lifting member 14. The lower water tank main body 11 is a bottomless and relatively thin-walled round-bottomed container, and the circumferential side walls of the lower water tank main body 11 are of equal height everywhere. In other words, the contour of the lower water tank main body 11 is cylindrical, and the diameter of the lower water tank main body 11 is greater than the height. A plurality of foot cups 12 are provided, and the foot cups 12 are used to support the lower water tank main body 11 to lift the bottom surface of the lower water tank main body 11 off the ground or the workbench, and the foot cups 12 themselves are supported on the ground or the workbench. The upper water tank support member 13 is installed on the lower water tank 1, and the upper water tank support member 13 is used to support the upper water tank 2. The upper water tank support member 13 passes through or supports on the bottom plate of the lower water tank main body 11 and supports the upper water tank 2 at the upper end. The lifting member 14 is installed on the lower water tank main body 11 and is used for lifting the lower water tank 1.

[0029] In this embodiment, the lower end of the upper water tank support member 13 is supported on the foot cup 12, and the upper end passes through the bottom plate of the lower water tank main body 11 and extends upward to support the upper water tank 2.

[0030] The upper water tank 2 includes an upper water tank main body 21, a workpiece support member 22, a water pipe fixing member 23, and a cover plate 24. The shape of the upper water tank main body 21 is similar to that of the lower water tank main body 11, that is, the upper water tank main body 21 is also a bottomless round-bottomed container with a relatively thin thickness. The difference is that the circumferential side wall of the upper water tank main body 21 is not of the same height everywhere, but is provided with at least one gap arranged at intervals. The diameter of the upper water tank main body 21 is smaller than the diameter of the lower water tank main body 11. When the upper water tank 2 is supported on the upper water tank support member 13, the circumference of the upper water tank main body 21 does not exceed the circumference of the lower water tank main body 11, so that when the water in the upper water tank main body 21 overflows, it can flow into the lower water tank main body 11. Preferably, the lower water tank main body 11 and the upper water tank main body 21 are arranged co-axially.

[0031] The workpiece support member 22 is arranged and supported on the bottom plate of the upper water tank main body 21. The workpiece support member 22 is used to support the workpiece 6 to be cooled. A plurality of workpiece support members 22 are provided, and the plurality of workpiece support members 22 are arranged at intervals. The height of the workpiece support member 22 is adjustable to adjust the height of the workpiece 6 it supports.

[0032] In this embodiment, the workpiece support member 22 is a screw jack.

[0033] The water pipe fixing member 23 is used to fix the water pipe arranged on the upper water tank main body 21. The water pipe fixing member 23 includes a pipe clamp 231 and a slide rail 232. The slide rail 232 is fixedly installed on the bottom plate of the upper water tank main body 21, and the pipe clamp 231 is slidably arranged on the slide rail 232 and can clamp the water pipe at the same time. The pipe clamp 231 includes two clamping blocks, and the two clamping blocks are detachably connected by bolts. One of the clamping blocks slides on the slide rail 232, and the water pipe is clamped between the two clamping blocks.

[0034] A plurality of water pipe fixing members 23 are provided, and the slide rails 232 of the plurality of water pipe fixing members 23 are arranged radially around the same center, that is, the multiple straight lines where the plurality of slide rails 232 are located can intersect at the same point. In this way, the water pipe fixing member 23 can be used to fix the annular water inlet pipe 432 (see the following introduction) with different annular diameters, that is, the water pipe fixing member 23 has universality. For workpieces 6 of different sizes, annular water inlet pipes 432 with different annular diameters can be used. For example, 3 to 4 groups of annular water inlet pipes 432 can be made, and the size of the workpiece 6 covered by each group is about plus or minus 100 in diameter. For example, if the pitch circle of the annular water inlet pipe 432 is 500 mm, workpieces 6 with a diameter of 400 to 600 mm can be covered.

[0035] A through hole is provided in the center of the bottom plate of the upper water tank body 21, which is the main water inlet, and a cover plate 24 is detachably covered on the main water inlet. The cover plate 24 is provided with at least one through hole, the aperture of which is smaller than the aperture of the main water inlet, so as to increase the pressure of the cooling water sprayed from the main water inlet. At least one cover plate 24 can be provided, and the apertures of the through holes on each cover plate 24 are different. By replacing the cover plate 24, the pressure of the water sprayed from the main water inlet can be adjusted to suit the cooling of different workpieces 6.

[0036] The lower water tank body 11 and the upper water tank body 21 are both provided with a grid plate 25 for workers to step on and walk over. The grid plate 25 is lifted off the bottom plate of the upper water tank body 21 or the lower water tank body 11 by a support frame, so that the water in the upper water tank body 21 flows under the corresponding grid plate 25, and the water in the lower water tank body 11 flows under the corresponding grid plate 25. The grid plate 25 can be flexibly arranged without interfering with the arrangement of the various components of the cold water tank itself.

[0037] The water level regulating assembly 3 is used to regulate the water level in the upper water tank 2. Specifically, the water level regulating assembly 3 includes a slide plate 31, a U-shaped plate 32, a slide plate connector 33 and a regulating valve 34. The U-shaped plate 32 is a U-shaped plate structure. The number of the U-shaped plates 32 is the same as the number of the notches on the side wall of the upper water tank body 21. Each U-shaped plate 32 is connected to the notch of the side wall of each upper water tank body 21, but the U-shaped plate 32 does not block the notch, but exposes the notch at the U-shaped opening.

[0038] The number of the slide plates 31 is the same as the number of the U-shaped plates 32, and each slide plate 31 corresponds to each U-shaped plate 32. The slide plate 31 is installed on the U-shaped plate 32 in a manner that it can be raised and lowered. The U-shaped plate 32 is provided with two long strip through holes arranged in parallel and at intervals. Two slide plate connectors 33 are provided. After passing through the slide plate 31, the two slide plate connectors 33 respectively pass through the two through holes on the U-shaped plate 32, and are then limited by the limiter so that the slide plate connectors 33 will not separate from the U-shaped plate 32. The slide plate connectors 33 can move along the through holes on the U-shaped plate 32, driving the slide plate 31 to move along the length direction of the through holes on the U-shaped plate 32, thereby realizing the lifting and lowering of the slide plate 31.

[0039] The slide plate 31 is located at the notch on the side wall of the upper water tank body 21 to open or close the notch. The notch on the side wall of the upper water tank body 21 is gradually closed by the rise of the slide plate 31, so that the water level that the upper water tank 2 can accommodate is gradually increased; the notch on the side wall of the upper water tank body 21 is gradually opened by the fall of the slide plate 31, so that the water level that the upper water tank 2 can accommodate is gradually reduced.

[0040] The regulating valve 34 is used to adjust the lifting of the sliding plate 31. The regulating valve 34 includes a screw rod 341, an operating member 342 and a nut 343. The nut 343 is fixedly installed on the sliding plate 31. The screw rod 341 passes through the nut 343 and the two are screwed together. The lower end of the screw rod 341 is rotatably installed on the bottom plate of the upper water tank main body 21, and the upper end passes through the nut 343 and then is connected to the operating member 342 for manual operation. Adjusting the operating member 342 drives the screw rod 341 to rotate self - sufficiently. The screw rod 341 drives the nut 343 screwed with it to move along the length direction of the screw rod 341, driving the sliding plate 31 to move synchronously, realizing the lifting movement of the sliding plate 31. When the driving of the screw rod 341 stops, the nut 343 can achieve self - locking, thus stopping at the current position.

[0041] A scale for marking the position of the sliding plate 31 is provided on the U - shaped plate 32, so as to know the water level in the current upper water tank 2 through this scale.

[0042] The water inlet part includes a main water inlet pipe 41, a main inlet pipe 42 and an annular water inlet part.

[0043] One end of the main inlet pipe 42 is connected to the main water inlet pipe 41, and the other end passes through the bottom plate of the lower water tank main body 11 and the bottom plate of the upper water tank main body 21 from bottom to top in sequence under the lower water tank main body 11 and then enters the upper water tank main body 21. Preferably, the main inlet pipe 42 passes through the center of the bottom plate of the lower water tank main body 11 and the center of the bottom plate of the upper water tank main body 21. Preferably, the upper end of the main inlet pipe 42 is flush with the bottom plate of the upper water tank main body 21 after passing through the through - hole in the center of the bottom plate of the upper water tank main body 21, so as to facilitate the cover plate 24 to cover the through - hole in the center of the bottom plate of the upper water tank main body 21.

[0044] The annular water inlet part includes a secondary inlet pipe 431, an annular inlet pipe 432, a rubber hose 434 and a plurality of universal nozzles 433. One end of the secondary inlet pipe 431 is connected to the main water inlet pipe 41, and the other end is connected to the annular inlet pipe 432 through the rubber hose 434. The rubber hose 434 is connected to the annular inlet pipe 432 through a flare fitting. The annular inlet pipe 432 is a ring - shaped water pipe. Preferably, the annular inlet pipe 432 surrounds the through - hole on the bottom plate of the upper water tank main body 21. The annular inlet pipe 432 is fixed on the bottom plate of the upper water tank main body 21 through a water pipe fixing member 23. A plurality of water pipe fixing members 23 are provided and arranged at intervals along the circumferential direction of the annular inlet pipe 432. A plurality of universal nozzles 433 are installed on the annular inlet pipe 432 at intervals through pipe seats. The water spraying direction of the universal nozzles 433 is adjustable. The number of the universal nozzles 433 is adjusted according to the pitch circle of the annular inlet pipe 432. The distance between adjacent universal nozzles 433 is 100 - 150 mm. The universal nozzles 433 adopt the nozzle structure in the prior art.

[0045] In this embodiment, the water inflow rate of the main water inlet pipe 41 is 60 L / min, the distance between adjacent universal nozzles 433 is 100 mm, the inner diameter of the water pipe of the annular water inlet pipe 432 is 50 mm, and the inner diameter of the universal nozzle 433 is 2 mm.

[0046] In this embodiment, valves are installed on the main water inlet pipe 41, the main inlet pipe 42, and the secondary inlet pipe 431.

[0047] The drain pipe 5 is connected to the main body 11 of the sink. The diameter of the drain pipe 5 is DN200, and the cross-sectional area is multiple times that of the main water inlet pipe 41 to ensure rapid drainage. In this embodiment, the cross-sectional area of the drain pipe 5 is six times that of the main water inlet pipe 41.

[0048] Preferably, the entire cold water tank is made by stainless steel welding, and the main body 11 of the sink and the main body 21 of the upper sink are both made of stainless steel.

[0049] Based on the above structure, the working process and principle of the present invention are as follows: The cold water tank is equivalent to having two layers, the upper layer is the cooling and overflow layer, and the lower layer is the drainage layer. A manually adjustable gate valve (i.e., the water level adjustment component 3) is provided in the upper overflow layer, and the U-shaped plate 32 is engraved with a scale to control the final water immersion depth of different tile blanks. The water inlet pipe is equivalent to having two groups to be applicable to solid or hollow tile blanks. When in use, the tile blank is placed on the cold water tank and supported on the workpiece support 22, and the height of the workpiece support 22 is adjusted according to the size of the tile blank to make it in a suitable position. The tile blank is used to hold molten metal (such as babbit alloy, etc.). In addition, according to the height of the tile blank from the bottom plate of the upper sink main body 21 and its own size, the operating member 342 is adjusted to lift the slide plate 31 and be at a suitable scale to ensure a suitable water level.

[0050] For a solid tile blank (such as the metal in the tile blank is cylindrical after solidification), open the main inlet pipe 42 and close the annular water inlet part. The external cooling water sequentially passes through the main water inlet pipe 41 and the main inlet pipe 42, and then sprays upward from the through holes on the cover plate 24, sprays onto the bottom of the solid tile blank and sprays around to cool the workpiece 6. When the cooling water passes through the through holes on the cover plate 24 from the main inlet pipe 42, the flow area of the water shrinks, the spraying pressure increases, ensuring the spraying pressure and fluidity, and the cooling speed is increased to achieve rapid cooling of the tile blank. When the water level rises to the top position of the slide plate 31, it automatically overflows into the main body 11 of the sink, so that the water level in the upper sink main body 21 always remains at the set position.

[0051] When cooling a hollow tile blank (such as the metal in the tile blank is circular after solidification), select a suitable annular water inlet pipe 432 according to the annular diameter of the tile blank, close the main inlet pipe 42 and open the annular water inlet part. The universal nozzles 433 on the annular water inlet pipe 432 spray evenly onto the bottom of the tile blank to achieve rapid cooling of the tile blank.

[0052] Finally, it is necessary to state here that the above embodiments are only used to further elaborate on the technical solutions of the present invention, and should not be construed as limiting the protection scope of the present invention. Some non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention all fall within the protection scope of the present invention.

Claims

1. A static casting cooling water tank, characterized in that: The invention comprises a lower water tank (1), an upper water tank (2), a water level regulating assembly (3), a water inlet and a drain pipe (5), wherein the upper water tank (2) comprises an upper water tank body (21), the upper water tank body (21) is a container without an upper cover, and the lower water tank (1) comprises a lower water tank body (11), the lower water tank body (11) is a container without an upper cover, the upper water tank body (21) is located above the lower water tank body (11), and the circumference of the upper water tank body (21) does not exceed the lower water tank body (11). 11), a workpiece (6) to be cast and cooled is placed in an upper water tank body (21) for cooling, cooling water enters the upper water tank body (21) through a water inlet, and the water after cooling is discharged through a drain pipe (5), the drain pipe (5) is connected to the lower water tank body (11), and the circumferential side wall of the upper water tank body (21) is provided with at least one gap arranged at intervals, and a water level adjustment component (3) is used to adjust the opening of the gap to adjust the water level in the upper water tank body (21).

2. The cooling water tank according to claim 1, characterized in that: The water level regulating assembly (3) comprises a slide plate (31) and a regulating valve (34); the slide plate (31) is located at a notch on the side wall of the upper water tank body (21); and the regulating valve (34) is connected to and drives the slide plate (31) to rise or fall to adjust the opening of the notch on the side wall of the upper water tank body (21).

3. The cooling water tank according to claim 2, characterized in that: The regulating valve (34) comprises a screw rod (341), an operating member (342) and a nut (343); the nut (343) is fixedly mounted on the slide plate (31); the screw rod (341) passes through the nut (343) and the two are screwed together; the lower end of the screw rod (341) is rotatably mounted on the bottom plate of the upper water tank body (21); the upper end of the screw rod (341) passes through the nut (343) and is connected to the operating member (342) for manual operation; the regulating operating member (342) drives the screw rod (341) to rotate, the screw rod (341) drives the nut (343) screwed together with the screw rod (341) to move along the length direction of the screw rod (341), and the nut (343) drives the slide plate (31) to move synchronously.

4. The cooling water tank according to claim 2, characterized in that: The water level regulating assembly (3) further comprises a U-shaped plate (32) and a slide connecting member (33); the U-shaped plate (32) is a U-shaped plate structure; the slide plate (31), the regulating valve (34), the U-shaped plate (32) and the notches on the side wall of the upper water tank body (21) are of the same number; each U-shaped plate (32) is respectively connected to each notch on the side wall of the upper water tank body (21); each slide plate (31) corresponds to each U-shaped plate (32); each regulating valve (34) is respectively connected to each slide plate (31); the U-shaped plate (32) does not block the notch; The U-shaped plate (32) is provided with two slide plate connecting members (33) and two long strip through holes arranged in parallel and at intervals. The two slide plate connecting members (33) pass through the slide plates (31) corresponding to the U-shaped plate (32) and then respectively pass through the two long strip through holes on the U-shaped plate (32) and are then limited by the limiting member. The slide plate connecting members (33) can move along the through holes on the U-shaped plate (32) and drive the slide plate (31) to move along the length direction of the through holes on the U-shaped plate (32). The U-shaped plate (32) is provided with a scale marking the position of the slide plate (31).

5. The cooling water tank according to claim 1, characterized in that: The water inlet part comprises a main water inlet pipe (41) and a main water inlet pipe (42). One end of the main water inlet pipe (42) is connected to the main water inlet pipe (41), and the other end of the main water inlet pipe (42) passes through the bottom plate of the lower water tank body (11) and the bottom plate of the upper water tank body (21) from bottom to top in sequence and then enters the upper water tank body (21). The end of the main water inlet pipe (42) extending into one end of the upper water tank body (21) is detachably connected to a cover plate (24). The cover plate (24) is provided with a through hole. The diameter of the through hole on the cover plate (24) is smaller than the diameter of the main water inlet pipe (42).

6. The cooling water tank according to claim 5, characterized in that: The water inlet portion also includes an annular water inlet portion, which includes a secondary water inlet pipe (431), an annular water inlet pipe (432) and a plurality of universal nozzles (433); one end of the secondary water inlet pipe (431) is connected to the main water inlet pipe (41), and the other end is connected to the annular water inlet pipe (432); the annular water inlet pipe (432) is an annular water pipe, and the plurality of universal nozzles (433) are installed on the annular water inlet pipe (432) at intervals.

7. The cooling water tank according to claim 6, characterized in that: The annular water inlet pipe (432) is fixed to the bottom plate of the upper water tank body (21) via a water pipe fixing member (23). A plurality of water pipe fixing members (23) are arranged at intervals along the circumference of the annular water inlet pipe (432).

8. The cooling water tank according to claim 7, characterized in that: The water pipe fixing member (23) comprises a pipe clamp (231) and a slide rail (232). The slide rail (232) is fixedly mounted on the bottom plate of the upper water tank body (21). The pipe clamp (231) is slidably mounted on the slide rail (232) and can clamp the water pipe at the same time. The slide rails (232) of the plurality of water pipe fixing members (23) are radially arranged around the same center.

9. The cooling water tank according to claim 1, characterized in that: The lower water tank body (11) and the upper water tank body (21) are both provided with a grid plate (25) for people to step on.

10. The cooling water tank according to claim 1, characterized in that: A plurality of workpiece supports (22) for supporting the workpiece (6) to be cooled are arranged on the bottom plate of the upper water tank body (21); the plurality of workpiece supports (22) are arranged at intervals, and the height of the workpiece supports (22) is adjustable.

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