阅读说明：本技术 一种淬火装置 (Quenching device ) 是由 孙林 贾晓帅 苏震 刘滨 黎雨 徐新乐 刘丙岗 张晓华 金阳 孙波 李济龙 于 2019-11-26 设计创作，主要内容包括：本发明涉及工件热处理领域,公开了一种淬火装置。一种淬火装置包括淬火槽和储液槽,连接于淬火槽和储液槽之间的回流组件、供液组件和喷雾组件；供液组件和喷雾组件用于使储液槽内的水性淬火介质流向淬火槽；淬火槽内水性淬火介质通过回流组件流回储液槽；防回流组件设置于供液组件和喷雾组件上,防止淬火槽内的水性淬火介质流回储液槽。本淬火装置完成喷水雾、喷水、浸水、空冷四种方式淬火,提高了资源利用率。重复利用水性淬火介质,提高了资源利用率。取代油淬,降低了成本,提高了安全性。设置防回流组件及回流组件上的开关件,有利于防止淬火槽内的水性淬火介质流回储液槽,保证了工件充分浸入水性淬火介质,提高了淬火效率。(The invention relates to the field of workpiece heat treatment and discloses a quenching device. A quenching device comprises a quenching tank, a liquid storage tank, a reflux assembly, a liquid supply assembly and a spraying assembly, wherein the reflux assembly, the liquid supply assembly and the spraying assembly are connected between the quenching tank and the liquid storage tank; the liquid supply assembly and the spraying assembly are used for enabling the aqueous quenching medium in the liquid storage tank to flow to the quenching tank; the aqueous quenching medium in the quenching tank flows back to the liquid storage tank through the reflux assembly; the backflow prevention assembly is arranged on the liquid supply assembly and the spraying assembly and prevents the aqueous quenching medium in the quenching tank from flowing back to the liquid storage tank. The quenching device can complete four modes of water spray, water immersion and air cooling for quenching, and improves the resource utilization rate. The water-based quenching medium is repeatedly utilized, and the resource utilization rate is improved. Oil quenching is replaced, the cost is reduced, and the safety is improved. The arrangement of the backflow preventing assembly and the switch piece on the backflow assembly is beneficial to preventing the aqueous quenching medium in the quenching tank from flowing back to the liquid storage tank, ensures that the workpiece is fully immersed in the aqueous quenching medium, and improves the quenching efficiency.)

1. The utility model provides a quenching device, includes quenching groove (1) and reservoir (2), its characterized in that still includes:

the liquid supply assembly (4) is used for enabling the aqueous quenching medium in the liquid storage tank (2) to flow to the quenching tank (1), the liquid supply assembly (4) comprises a plurality of liquid supply and liquid outlet ends, the liquid supply and liquid outlet ends are arranged in the quenching tank (1), and the plurality of liquid supply and liquid outlet ends are sequentially distributed along the tank wall of the quenching tank (1) from top to bottom;

the spraying assembly (5) is used for enabling the aqueous quenching medium in the liquid storage tank (2) to flow to the quenching tank (1), the spraying assembly (5) comprises a plurality of spraying liquid outlet ends, the spraying liquid outlet ends are arranged in the quenching tank (1), and the spraying liquid outlet ends are sequentially distributed along the tank wall of the quenching tank (1) from top to bottom;

the backflow assembly is communicated with the quenching tank (1) and the liquid storage tank (2), and a switch piece for closing the quenching tank (1) and the liquid storage tank (2) is arranged on the backflow assembly;

and the backflow prevention assembly is arranged on the liquid supply assembly (4) and the spraying assembly (5), and is used for preventing the aqueous quenching medium in the quenching tank (1) from flowing back to the liquid storage tank (2).

2. The quench device of claim 1, wherein the liquid supply assembly (4) further comprises:

one end of the liquid supply pipe (41) is connected to the bottom of the liquid storage tank (2), the other end of the liquid supply pipe is provided with a plurality of liquid supply branch pipes, and liquid supply and discharge ends are arranged on the liquid supply branch pipes;

and a liquid supply pump (42), wherein the liquid supply pump (42) is arranged on the liquid supply pipe (41), and the liquid supply pump (42) enables the aqueous quenching medium in the liquid storage tank (2) to flow to the quenching tank (1).

3. The quenching apparatus according to claim 2, wherein the spray assembly (5) further comprises:

one end of the spraying pipe (51) is connected to the bottom of the liquid storage tank (2), the other end of the spraying pipe is provided with a plurality of spraying branch pipes, and the spraying branch pipes are provided with spraying liquid outlet ends;

the spray head (53) is arranged in the quenching tank (1), and the spray head (53) is connected to the spray liquid outlet end;

a spray pump (52), wherein the spray pump (52) is disposed on the spray pipe (51), and the spray pump (52) causes the aqueous quenching medium in the liquid storage tank (2) to flow toward the quenching tank (1).

4. The quenching apparatus according to claim 3, wherein the backflow preventing assembly comprises a check valve (61), the check valve (61) being provided on each of the branch liquid supply pipe and each of the branch spray pipes, respectively.

5. The quenching device as claimed in claim 1, wherein the backflow component comprises a first backflow hole opened on the quenching tank (1) and a second backflow hole opened on the liquid storage tank (2), the first backflow hole is communicated with the second backflow hole, and a drain valve (31) capable of closing the pipeline is arranged on the pipeline communicated with the first backflow hole and the second backflow hole.

6. The quenching device as claimed in claim 5, wherein the quenching tank (1) is arranged at the top of the liquid storage tank (2), the first backflow hole is arranged at the bottom of the quenching tank (1), the second backflow hole is arranged at the top of the liquid storage tank (2), the first backflow hole and the second backflow hole are arranged correspondingly, and the drain valve (31) is arranged at the first backflow hole or the second backflow hole.

7. The quenching apparatus according to claim 1, wherein the quenching tank (1) is provided with at least two sets of the liquid supply assembly (4) and the spray assembly (5) along the circumferential direction of the tank wall.

8. The quenching apparatus according to claim 1, further comprising an overflow assembly (7), the overflow assembly (7) being connected between the quenching tank (1) and the reservoir (2), the overflow assembly (7) causing the aqueous quenching medium to flow back from the quenching tank (1) to the reservoir (2) when a liquid level in the quenching tank (1) is higher than a preset liquid level.

9. The quenching device according to claim 8, wherein the overflow assembly (7) comprises an overflow pipe, one end of the overflow pipe is connected to a preset liquid level of the wall of the quenching tank (1), the other end of the overflow pipe is connected to the top of the liquid storage tank (2), and an overflow valve (72) is arranged on the overflow pipe.

10. The quenching device according to claim 1, further comprising a support (8), said support (8) connecting said quenching tank (1) and said reservoir (2).

Technical Field

The invention relates to the field of workpiece heat treatment, in particular to a quenching device.

Background

The quenching mode of the traditional workpiece is mostly water quenching or oil quenching to cool the workpiece. Although the oil quenching effect is good, due to the particularity of the oil quenching medium, the quenching cost is increased, the environment is polluted, fire hazards exist, and the health of operators is affected. Moreover, the existing quenching device generally uses a single quenching method, can not carry out targeted quenching treatment according to the size characteristics and application scenes of workpieces, has low functional integration level and wastes resources. And the traditional liquid feeding mode of soaking and quenching the workpiece also has the problem that the workpiece is not cooled synchronously up and down.

Based on this, a quenching apparatus is needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a quenching device which replaces the traditional oil quenching mode, enables workpieces to be cooled up and down uniformly, can quench various types of workpieces and improves the quenching efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

a quenching device comprises a quenching tank and a liquid storage tank, and further comprises:

the liquid supply assembly is used for enabling the aqueous quenching medium in the liquid storage tank to flow to the quenching tank and comprises a plurality of liquid supply and liquid outlet ends, the liquid supply and liquid outlet ends are arranged in the quenching tank, and the plurality of liquid supply and liquid outlet ends are sequentially distributed along the tank wall of the quenching tank from top to bottom;

the spraying assembly is used for enabling the aqueous quenching medium in the liquid storage tank to flow to the quenching tank and comprises a plurality of spraying liquid outlet ends, the spraying liquid outlet ends are arranged in the quenching tank, and the plurality of spraying liquid outlet ends are sequentially distributed along the tank wall of the quenching tank from top to bottom;

the backflow assembly is communicated with the quenching tank and the liquid storage tank, and a switch piece for closing the quenching tank and the liquid storage tank is arranged on the backflow assembly;

and the backflow prevention assembly is arranged on the liquid supply assembly and the spraying assembly and is used for preventing the aqueous quenching medium in the quenching tank from flowing back to the liquid storage tank.

Preferably, the liquid supply assembly further comprises:

one end of the liquid supply pipe is connected to the bottom of the liquid storage tank, the other end of the liquid supply pipe is provided with a plurality of liquid supply branch pipes, and the liquid supply branch pipes are provided with liquid supply and discharge ends;

and the liquid supply pump is arranged on the liquid supply pipe and enables the aqueous quenching medium in the liquid storage tank to flow to the quenching tank.

Preferably, the spray assembly further comprises:

one end of the spraying pipe is connected to the bottom of the liquid storage tank, the other end of the spraying pipe is provided with a plurality of spraying branch pipes, and the spraying branch pipes are provided with spraying liquid outlet ends;

the spray head is arranged in the quenching tank and is connected to the spray liquid outlet end;

and the spray pump is arranged on the spray pipe and enables the aqueous quenching medium in the liquid storage tank to flow to the quenching tank.

Preferably, the backflow prevention assembly includes check valves respectively provided to each of the branched liquid supply pipes and each of the branched spray pipes.

Preferably, the backflow component comprises a first backflow hole formed in the quenching tank and a second backflow hole formed in the liquid storage tank, the first backflow hole is communicated with the second backflow hole, and a drain valve capable of sealing the pipeline is arranged on the pipeline communicated with the second backflow hole.

Preferably, the quenching tank is arranged at the top of the liquid storage tank, the first backflow hole is arranged at the bottom of the quenching tank, the second backflow hole is arranged at the top of the liquid storage tank, the first backflow hole and the second backflow hole are correspondingly arranged in position, and the drain valve is arranged at the first backflow hole or the second backflow hole.

Preferably, at least two groups of the liquid supply assemblies and the spraying assemblies are arranged in the quenching tank along the circumferential direction of the tank wall.

Preferably, the quenching device further comprises an overflow assembly, wherein the overflow assembly is connected between the quenching tank and the liquid storage tank, and when the liquid level in the quenching tank is higher than a preset liquid level, the overflow assembly enables the aqueous quenching medium to flow back to the liquid storage tank from the quenching tank.

Preferably, the overflow assembly comprises an overflow pipe, one end of the overflow pipe is connected to a preset liquid level of the wall of the quenching tank, the other end of the overflow pipe is connected to the top of the liquid storage tank, and the overflow pipe is provided with an overflow valve.

Preferably, the quenching device further comprises a support member, and the support member is connected with the quenching tank and the liquid storage tank.

The invention has the beneficial effects that: the device can replace the traditional quenching mode of oil quenching, uses the aqueous quenching medium, has small quenching residual stress, reduces the cost and improves the safety. The quenching device comprises the backflow component, the liquid supply component and the spraying component between the quenching tank and the liquid storage tank, so that the same device can finish four modes of water spraying, water soaking and air cooling, various workpieces can be quenched, and the resource utilization rate is improved. And the aqueous quenching medium flows between the quenching tank and the liquid storage tank, so that resources are saved by recycling, and the utilization rate of the resources is improved. The arrangement of the backflow-preventing component is beneficial to preventing the aqueous quenching medium in the quenching tank from flowing back to the liquid storage tank, ensures that the workpiece is fully immersed in the aqueous quenching medium during immersion quenching, and improves the quenching efficiency. The quenching tank is provided with a plurality of liquid supply and outlet ends of the liquid supply assembly and a plurality of spraying and outlet ends of the spraying assembly from top to bottom, so that the up-and-down cooling synchronism of the workpiece is ensured, and the cooling is uniform.

Drawings

FIG. 1 is a schematic front view of a quenching apparatus according to an embodiment of the present invention;

fig. 2 is a schematic top view of a quenching apparatus according to an embodiment of the present invention.

In the figure:

1. a quenching tank;

2. a liquid storage tank;

31. a drain valve;

4. a liquid supply assembly; 41. a liquid supply tube; 42. a liquid supply pump;

5. a spray assembly; 51. a spray tube; 52. a spray pump; 53. a spray head;

61. a check valve;

7. an overflow assembly; 72. an overflow valve;

8. and a support member.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The embodiment provides a quenching device which is used for replacing the traditional quenching mode of oil quenching and providing a plurality of quenching modes. The quenching mode that present guenching unit provided is single, also has the problem that the work piece cools off asynchronization from top to bottom.

In order to solve the above problems, the quenching device provided by the embodiment provides multiple quenching modes, improves the resource utilization rate, reduces the cost, improves the safety, ensures the upper and lower cooling synchronization of the workpiece, and is uniform in cooling.

As shown in fig. 1, the quenching device comprises a quenching tank 1, a liquid storage tank 2, a liquid supply assembly 4, a spraying assembly 5, a backflow assembly and an anti-backflow assembly. The workpiece is placed in the quenching tank 1 to finish quenching treatment, and the liquid storage tank 2 is used for storing aqueous quenching medium. The liquid supply assembly 4, the spraying assembly 5 and the backflow assembly are connected between the quenching tank 1 and the liquid storage tank 2. The backflow prevention assembly is arranged on the liquid supply assembly 4 and the spraying assembly 5 and is used for preventing the aqueous quenching medium in the quenching tank 1 from flowing back to the liquid storage tank 2 through the liquid supply assembly 4 and the spraying assembly 5.

Specifically, the liquid supply assembly 4 and the spray assembly 5 are used for enabling the aqueous quenching medium in the liquid storage tank 2 to flow to the quenching tank 1. The liquid supply assembly 4 comprises a plurality of liquid supply and outlet ends, and the spraying assembly 5 comprises a plurality of spraying and outlet ends. And the liquid supply and outlet end and the spray liquid outlet end are arranged in the quenching tank 1. The liquid outlet ends of the liquid supply are sequentially distributed from top to bottom along the groove wall of the quenching groove 1, and the liquid outlet ends of the spray are sequentially distributed from top to bottom along the groove wall of the quenching groove 1. The backflow assembly is provided with a switch piece for sealing the quenching tank 1 and the liquid storage tank 2, the communication between the quenching tank 1 and the liquid storage tank 2 is controlled, and the process of soaking quenching or air cooling quenching is easily completed. The quenching device comprises a backflow component, a liquid supply component 4 and a spraying component 5 between a quenching tank 1 and a liquid storage tank 2, so that the same device can finish four modes of water spray, water immersion and air cooling, various workpieces can be quenched, and the resource utilization rate is improved. And the aqueous quenching medium flows between the quenching tank 1 and the liquid storage tank 2, so that resources are saved by recycling, and the utilization rate of the resources is improved. The arrangement of the backflow-preventing component is beneficial to preventing the aqueous quenching medium in the quenching tank 1 from flowing back to the liquid storage tank 2, ensures that the workpiece is fully immersed in the aqueous quenching medium during immersion quenching, and improves the quenching efficiency. The quenching tank 1 is provided with a plurality of liquid supply and outlet ends of the liquid supply component 4 and a plurality of spraying and outlet ends of the spraying component 5 from top to bottom, so that the up-and-down cooling synchronism of the workpiece is ensured, and the cooling is uniform.

Preferably, the liquid supply assembly 4 further includes a liquid supply pipe 41 and a liquid supply pump 42 for injecting the aqueous quenching medium in the liquid reservoir 2 into the quenching tank 1. One end of the liquid supply pipe 41 is connected to the bottom of the liquid storage tank 2, and the other end is provided with a plurality of liquid supply branch pipes which are provided with liquid supply and discharge ends. The liquid supply pump 42 is arranged on the liquid supply pipe 41, and the liquid supply pump 42 enables the aqueous quenching medium in the liquid storage tank 2 to flow and be injected into the quenching tank 1, so that the quenching device has the function of water spraying quenching, and can inject the aqueous quenching medium into the quenching tank 1, thereby improving the resource utilization rate. The liquid supply pipe 41 is provided with a plurality of liquid supply and liquid outlet ends which are sequentially distributed in the quenching tank 1 from top to bottom along the tank wall of the quenching tank 1, so that the aqueous quenching medium is uniformly sprayed into the quenching tank 1 from top to bottom, the vertical synchronous cooling of the workpiece is ensured, the rapid charging of the aqueous quenching medium into the quenching tank 1 is facilitated, and the vertical synchronous cooling of the workpiece during immersion quenching is also ensured.

In this embodiment, one end of the liquid supply pipe 41 is connected to the liquid storage tank 2, the other end is provided with 3 liquid supply branch pipes, each liquid supply branch pipe is connected to one liquid supply and outlet end, and the 3 liquid supply and outlet ends are arranged in the quenching tank 1 and are sequentially distributed along the tank wall of the quenching tank 1 from top to bottom, so that the aqueous quenching medium is uniformly sprayed into the quenching tank 1 from top to bottom.

In other embodiments, the number of the liquid outlet ends and the branch liquid supply pipes is determined according to the shape of the workpiece to be processed, and is not limited herein.

Further, the spray assembly 5 further includes a spray pipe 51, a spray pump 52 and a spray head 53 for spraying the aqueous quenching medium in the liquid storage tank 2 into the quenching tank 1 in the form of water mist. One end of the spray pipe 51 is connected to the bottom of the liquid storage tank 2, and the other end is provided with a plurality of spray branch pipes which are provided with spray liquid outlet ends. The spray head 53 is disposed in the quenching tank 1, and the spray head 53 is connected to the spray outlet end. The spray pump 52 is disposed on the spray pipe 51, and the spray pump 52 causes the aqueous quenching medium in the liquid storage tank 2 to flow toward and spray the aqueous quenching medium in the form of water mist to the quenching tank 1, so that the quenching device has a function of spraying water mist for quenching, and the resource utilization rate is improved. The spray pipe 51 is provided with a plurality of spray liquid outlet ends which are distributed in the quenching tank 1 from top to bottom along the tank wall of the quenching tank 1 in sequence, so that the water-based quenching medium is uniformly sprayed into the quenching tank 1 in a water mist shape from top to bottom, and the workpiece is ensured to be cooled synchronously from top to bottom.

In this embodiment, one end of the spray pipe 51 is connected to the liquid storage tank 2, the other end is provided with 3 spray branch pipes, each spray branch pipe is connected with a spray liquid outlet end, and the 3 spray liquid outlet ends are arranged in the quenching tank 1 and are sequentially distributed from top to bottom along the tank wall of the quenching tank 1, so that the aqueous quenching medium is uniformly sprayed into the quenching tank 1 in a water mist form.

In other embodiments, the number of the spray outlet ends and the number of the spray branch pipes are determined according to the shape of the workpiece to be processed, and is not limited herein.

In the present embodiment, centrifugal pumps are used for the liquid supply pump 42 and the spray pump 52.

In this embodiment, the diameter of the spray pipe 51 is smaller than that of the liquid supply pipe 41, which is beneficial for the aqueous quenching medium to be fully sprayed into the quenching tank 1 in a water mist form, and meets the diversified requirements of quenching treatment.

Specifically, the backflow prevention assembly includes a check valve 61 for preventing the aqueous quenching medium in the quenching tank 1 from flowing back to the reservoir 2. The check valves 61 are respectively arranged on each liquid supply branch pipe and each spraying branch pipe, so that the backflow prevention effect is better, the workpieces are guaranteed to be fully immersed into the aqueous quenching medium during immersion quenching, and the quenching efficiency is improved.

Preferably, at least two groups of liquid supply assemblies 4 and spraying assemblies 5 are arranged on the quenching tank 1 along the circumferential direction of the tank wall, so that the quenching treatment of the workpiece at multiple angles is facilitated, the workpiece is uniformly cooled, and the quenching efficiency is improved.

In the embodiment, a set of liquid supply assembly 4 and spraying assembly 5 which are oppositely arranged are respectively arranged at the left and the right of the quenching tank 1.

Preferably, the backflow assembly comprises a first backflow hole formed in the quenching tank 1 and a second backflow hole formed in the liquid storage tank 2, and the first backflow hole is communicated with the second backflow hole. In this embodiment, a drain valve 31 capable of closing the pipeline is provided on the pipeline connecting the first return hole and the second return hole, and the drain valve 31 is used for closing the quenching tank 1 and the liquid storage tank 2.

Specifically, in the present embodiment, as shown in fig. 2, the quenching tank 1 is provided at the top of the liquid reservoir 2. The first backflow hole is arranged at the bottom of the quenching tank 1, the second backflow hole is arranged at the top of the liquid storage tank 2, the first backflow hole and the second backflow hole are correspondingly arranged, and the drain valve 31 is arranged at the first backflow hole or the second backflow hole. The quenching tank 1 is arranged above the liquid storage tank 2, so that the mutual interference of the structures of all parts is avoided, the space utilization rate of the quenching device is improved, and the structural compactness is improved.

In the present embodiment, the drain valve 31 is provided at the first return hole. In other embodiments, the drain valve 31 may be disposed at the second return hole, which is not limited herein.

In this embodiment, the first return hole at the bottom of the quenching tank 1 and the second return hole at the top of the liquid storage tank 2 are directly overlapped, so that a pipeline between the first return hole and the second return hole is omitted, and resources are saved.

Preferably, the quenching apparatus further includes a support 8 for fixing the quenching bath 1 and the liquid storage tank 2. The supporting piece 8 is connected with the quenching tank 1 and the liquid storage tank 2, and the quenching tank 1 is fixed above the liquid storage tank 2, so that the structure of the whole device is reinforced.

Preferably, the quenching device further comprises an overflow assembly 7, and the overflow assembly 7 is used for preventing the danger caused by the excessive aqueous quenching medium in the quenching tank 1. The overflow assembly 7 is connected between the quenching tank 1 and the liquid storage tank 2, and when the liquid level in the quenching tank 1 is higher than the preset liquid level, the overflow assembly 7 enables the aqueous quenching medium to flow back to the liquid storage tank 2 from the quenching tank 1. In this embodiment, the preset liquid level is determined according to the size of the workpiece to be processed and the actual quenching requirement thereof, and is not limited herein.

Specifically, in this embodiment, the overflow assembly 7 includes an overflow pipe, one end of which is connected at the preset liquid level of the groove wall of the quenching tank 1 and communicated, and the other end of which is connected at the top of the liquid storage tank 2 and communicated, and the overflow pipe 72 is provided thereon. When the liquid level in the quenching tank 1 is higher than the preset liquid level, the overflow valve 72 is opened, the aqueous quenching medium flows into the liquid storage tank 2 through the overflow pipe, and the liquid level in the quenching tank 1 is lowered.

In other embodiments, the quenching tank 1 may be disposed on one side of the liquid storage tank 2, and the overflow assembly 7 may be provided with a centrifugal pump to allow the aqueous quenching medium in the quenching tank 1 to flow into the liquid storage tank 2, which is not limited herein.

For convenience of understanding, the specific use process of processing the workpiece by using the quenching device provided by the embodiment is as follows:

firstly, the proper types of the quenching tank 1, the liquid storage tank 2 and the aqueous quenching medium are selected according to the overall dimension of the workpiece and the quenching treatment requirement, the position of the spray head 53 is adjusted, and the preset liquid level suitable for the overflow assembly 7 is set.

Secondly, the specific steps of the quenching process of the workpiece are determined.

And thirdly, spraying water and soaking the workpiece for quenching treatment. The drain valve 31 is opened to return the aqueous quenching medium in the quenching bath 1 to the liquid storage tank 2, and the drain valve 31 is closed. And opening the liquid supply pumps 42 of the left and right liquid supply assemblies 4 to drive the aqueous quenching medium in the liquid storage tank 2 to flow to the liquid supply pipe 41, thereby completing the rapid water pumping operation. And then the liquid is sprayed into the quenching tank 1 from the liquid supply and outlet end, and the liquid supply pump 42 is closed when the liquid level in the quenching tank 1 is over the workpiece, so that the water spraying and water immersion quenching are completed.

When the workpiece is quenched only by spraying water, the opening state of the drain valve 31 is maintained, and the rest of the operations are the same as above.

When the workpiece is quenched by spraying water mist, the drain valve 31 is opened to return the aqueous quenching medium in the quenching tank 1 to the liquid storage tank 2, and the drain valve 31 is closed. And (3) turning on the spray pumps 52 of the left and right spray assemblies 5 to drive the aqueous quenching medium in the liquid storage tank 2 to flow to the spray pipes 51, so as to finish the rapid water pumping operation. Then the water mist is sprayed into the quenching tank 1 in a water mist shape through a spraying liquid outlet end and a spraying head 53 to finish water mist spraying quenching.

When the workpiece is subjected to air-cooling quenching treatment, the drain valve 31 is opened to enable the aqueous quenching medium in the quenching tank 1 to completely flow into the liquid storage tank 2, and the quenching tank 1 is filled with air at the moment, so that air-cooling quenching is completed.

And finally, when the workpiece needs to be quenched by water and space intermittently and alternately, selectively repeating the steps according to the quenching process of the workpiece.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.