Automatic regulation and control device for lead screw quenching

Abstract

An automatic regulating and controlling device for lead screw quenching comprises a quenching mechanism, the quenching mechanism is provided with a water spraying ring, the water spraying ring is used for spraying a quenching medium, and the quenching mechanism can drive the water spraying ring to move in the first direction; and the feeding mechanism is connected with the water spraying ring through a pipeline and is used for providing a quenching medium for the water spraying ring. The quenching mechanism drives the water spraying ring to move in the first direction, so that the position of the water spraying ring can be adjusted after the model of the lead screw is replaced, and the water spraying ring can adapt to lead screws of different models. Therefore, the labor intensity of workers and the operation difficulty can be reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment equipment, in particular to an automatic control device for screw quenching. Background Art

[0002] Ball screw is a key rolling functional component used for precision mechanical positioning and transmission. It has the advantages of high efficiency and energy saving, precise positioning and precise guidance. It is a typical capital-intensive, technology-intensive and management-intensive product. It has been widely used in many important fields such as industrial mother machines, national defense and military industry, aerospace, rail transportation, medical equipment and new energy. Quenching and cooling is a crucial link in the production process of ball screws. After quenching and cooling, a hardened layer of a certain depth is formed on the surface of the screw, which can not only meet the requirements of high surface hardness and wear resistance, but also ensure the comprehensive mechanical properties of high strength and toughness of the core. For the cooling of ball screws of different specifications, in order to ensure the cooling effect, most of them adopt the method of replacing the water spray ring. For example, when producing 50 screws, one water spray ring is used, and when producing 80 screws, the corresponding model of water spray ring is manually replaced, which increases the labor intensity and reduces the working efficiency of the equipment; the concentration, temperature and flow control of the quenching medium are often adjusted through manual intervention (adding liquid, turning valves, etc.), which has high requirements for workers' experience and is unstable. Summary of the invention

[0003] In view of the above problems in the prior art, the present application provides an automatic control device for screw quenching, which can automatically adapt to the quenching requirements of screws of different models and reduce the difficulty of operation.

[0004] In order to achieve the above-mentioned purpose, the present application provides an automatic control device for screw quenching, including: a quenching mechanism, the quenching mechanism has a water spray ring, the water spray ring is used to spray quenching medium, and the quenching mechanism can drive the water spray ring to move along a first direction; a feeding mechanism, the feeding mechanism is connected to the water spray ring pipeline, and is used to provide quenching medium to the water spray ring.

[0005] With the above structure, the water spray ring is driven to move along the first direction by the quenching mechanism, so that after the model of the lead screw is changed, the position of the water spray ring can be adjusted, so that the water spray ring can be adapted to lead screws of different models. In this way, the labor intensity and operation difficulty of workers can be reduced, and production efficiency can be improved.

[0006] In some embodiments, the quenching mechanism also includes: a main water pipe, which extends along the first direction, the water spray ring is installed at one end of the main water pipe, and the other end of the main water pipe is connected to the feeding mechanism pipeline; a motor, which is transmission-connected to the main water pipe to drive the main water pipe to move along the first direction.

[0007] With the above structure, the motor drives the main water pipe to move in the first direction, thereby driving the water spray ring to move in the first direction to a predetermined position, and quenching the lead screw of the corresponding model at the position. In this way, the labor intensity and operation difficulty of the workers can be reduced, and the production efficiency can be improved.

[0008] In some embodiments, the quenching mechanism further includes: a rack, which is mounted on the main water pipe and extends along the first direction; and a gear, which is mounted on the driving shaft of the motor and meshes with the rack.

[0009] With the above structure, transmission can be performed through the cooperation between the gear and the rack, so that the motor can conveniently drive the main water pipe to move along the first direction.

[0010] In some embodiments, the quenching mechanism further includes: a guide rail, which is disposed on the main water pipe and extends along the first direction; and a slider, which is fixedly disposed and slidably connected to the guide rail.

[0011] With the above structure, the moving direction of the main water pipe and the water spray ring can be restricted by the sliding connection between the guide rail and the slider, thereby improving the stability of the water spray ring when moving.

[0012] In some embodiments, the feeding mechanism includes: a medium tank, which is used to store quenching medium and is connected to the water spray ring pipeline; and a heater, which is arranged on the medium tank and is used to heat the quenching medium in the medium tank.

[0013] By adopting the above structure, the quenching medium in the medium tank can be heated by the heater so that the quenching medium reaches a predetermined temperature, thereby improving the quenching effect.

[0014] In some embodiments, the feeding mechanism also includes: a thermometer, which is installed on the medium tank and is used to detect the temperature of the quenching medium in the medium tank; wherein, when the thermometer detects that the temperature of the quenching medium is lower than a first temperature threshold, the heater is controlled to heat the quenching medium; when the thermometer detects that the temperature of the quenching medium is higher than a second temperature threshold, the heater is controlled to stop heating the quenching medium.

[0015] With the above structure, the temperature of the quenching medium in the medium tank can be detected by the thermometer, and the heater can be controlled to start or stop heating the quenching medium in the medium tank according to the detection result. Thus, the control ability and control accuracy of the temperature of the quenching medium can be improved, thereby improving the quenching effect.

[0016] In some embodiments, the feeding mechanism also includes: a cooling tower, which is connected to the medium tank pipeline; a first liquid pump, which is arranged on the pipeline connecting the cooling tower and the medium tank, and is used to drive the quenching medium to circulate between the cooling tower and the medium tank; wherein, when the thermometer detects that the temperature of the quenching medium is higher than the second temperature threshold, the first liquid pump is controlled to drive the quenching medium to circulate between the cooling tower and the medium tank.

[0017] By adopting the above structure, a cooling tower is provided to allow the quenching medium to circulate between the medium tank and the cooling tower, thereby cooling the quenching medium in the medium tank. Thus, when the temperature of the quenching medium in the medium tank is detected by the temperature measuring instrument to exceed the second temperature threshold, the quenching medium can be driven to circulate between the medium tank and the cooling tower, thereby quickly cooling the quenching medium to a predetermined temperature. Thus, the ability to control the temperature of the quenching medium can be improved.

[0018] In some embodiments, the feeding mechanism also includes: a clean water tank, which is used to store water and is connected to the medium tank through a pipeline; a second liquid pump, which is arranged on the pipeline connecting the clean water tank and the medium tank and is used to drive the water in the clean water tank into the medium tank through the pipeline.

[0019] With the above structure, the water in the clean water tank can be driven into the medium tank by the second liquid pump, so that the medium concentration of the quenching medium in the medium tank can be adjusted. Specifically, when the medium concentration of the quenching medium in the medium tank is too high, clean water can be injected into the medium tank to reduce the medium concentration of the quenching medium in the medium tank.

[0020] In some embodiments, the feeding mechanism also includes: a medium standby tank, which is used to store medium raw liquid and is connected to the medium tank pipeline; a third liquid pump, which is arranged on the pipeline connecting the medium standby tank and the medium tank, and is used to drive the medium raw liquid in the medium standby tank into the medium tank through the pipeline.

[0021] With the above structure, the third liquid pump can be used to drive the medium stock solution in the medium tank into the medium tank, so that the medium concentration of the quenching medium in the medium tank can be adjusted. Specifically, when the medium concentration of the quenching medium in the medium tank is too low, the medium stock solution can be injected into the medium tank to increase the medium concentration of the quenching medium in the medium tank.

[0022] In some embodiments, the feeding mechanism also includes: a concentration detector, which is arranged on the medium tank and is used to detect the medium concentration in the quenching medium in the medium tank; when the concentration detector detects that the medium concentration of the quenching medium is higher than a first concentration threshold, the second liquid pump is controlled to drive the water in the clean water tank to enter the medium tank through a pipeline; when the concentration detector detects that the medium concentration of the quenching medium is lower than a second concentration threshold, the third liquid pump is controlled to drive the medium raw liquid in the medium standby tank to enter the medium tank through a pipeline.

[0023] With the above structure, the medium concentration in the medium tank can be detected by the concentration detector, and the second liquid pump or the third liquid pump can be controlled to work according to the detection result. Thus, the medium concentration of the quenching medium in the medium tank can be controlled in real time, so that the medium concentration is maintained between the first concentration threshold and the second concentration threshold. Thus, the stability of the medium concentration of the quenching medium can be improved, thereby improving the quenching effect.

[0024] These and other aspects of the invention will become apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

[0026] Figure 1 This is a schematic diagram of the structure of the quenching mechanism of the automatic control device for screw quenching in this application;

[0027] Figure 2 This is one of the structural schematic diagrams of the feeding mechanism of the automatic control device for screw quenching in this application;

[0028] Figure 3 This is the second structural diagram of the feeding mechanism of the automatic control device for screw quenching in this application;

[0029] Figure 4 This is a control schematic diagram of the quenching mechanism of the screw quenching automatic control device in this application.

[0030] Description of Reference Numerals

[0031] 10 automatic control device for lead screw quenching; 100 quenching mechanism; 110 water spray ring; 120 main water pipe; 130 motor; 140 gear; 150 rack; 160 slide rail; 170 slider; 200 feeding mechanism; 210 medium tank; 220 temperature measuring instrument; 230 heater; 240 cooling tower; 250 first liquid pump; 260 concentration detector; 270 clean water tank; 280 second liquid pump; 290 medium standby tank; 300 third liquid pump. DETAILED DESCRIPTION

[0032] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0033] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements. It should therefore be interpreted as specifying the presence of the features, integers or components mentioned, but does not exclude the presence or addition of one or more other features, integers or components and groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0034] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0035] Below, in conjunction with the accompanying drawings, a possible embodiment of the automatic control device 10 for screw quenching in the present application is exemplarily described.

[0036] like Figure 1-Figure 3As shown, the screw quenching automatic control device 10 in the present application includes a quenching mechanism 100 and a feeding mechanism 200, wherein the quenching mechanism 100 is used to quench the screw, and the feeding mechanism 200 is used to provide a quenching medium to the quenching mechanism 100. Among them, the quenching mechanism 100 has a water spray ring 110, and the water spray ring 110 is used to spray the quenching medium, and the quenching mechanism 100 can drive the water spray ring 110 to move along a first direction. The feeding mechanism 200 is connected to the water spray ring 110 by a pipeline, and is used to provide a quenching medium to the water spray ring 110. Thus, the water spray ring 110 is driven to move along the first direction by the quenching mechanism 100, so that after the model of the screw is changed, the position of the water spray ring 110 can be adjusted, so that the water spray ring 110 can be adapted to screws of different models. Thus, the labor intensity and operation difficulty of the workers can be reduced, and the production efficiency can be improved.

[0037] like Figure 1 As shown, in some embodiments, the quenching mechanism 100 further includes a main water pipe 120 and a motor 130. The main water pipe 120 extends in a first direction, the water spray ring 110 is installed at one end of the main water pipe 120, and the other end of the main water pipe 120 is connected to the feed mechanism 200 pipeline. The motor 130 is connected to the main water pipe 120 in a transmission manner to drive the main water pipe 120 to move in the first direction. Thus, the main water pipe 120 is driven to move in the first direction by the motor 130, so that the water spray ring 110 can be driven to move to a predetermined position in the first direction, and the lead screw of the corresponding model at the position is quenched. Thus, the labor intensity and operation difficulty of the workers can be reduced, and the production efficiency can be improved.

[0038] In some embodiments, the quenching mechanism 100 can also replace the motor 130 with a drive cylinder. The drive cylinder can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder. The drive cylinder is transmission-connected to the main water pipe 120 to drive the main water pipe 120 to move in the first direction.

[0039] like Figure 1 As shown, in some embodiments, the quenching mechanism 100 further includes a rack 150 and a gear 140. The rack 150 is mounted on the main water pipe 120 and extends along the first direction. The gear 140 is mounted on the drive shaft of the motor 130 and meshes with the rack 150. Thus, the gear 140 and the rack 150 can be used for transmission, so that the motor 130 can drive the main water pipe 120 to move along the first direction.

[0040] In some embodiments, the motor 130 and the main water pipe 120 may be driven by a screw drive, a chain drive, or the like to drive the main water pipe 120 to move along the first direction.

[0041] like Figure 1As shown, in some embodiments, the quenching mechanism 100 further includes a guide rail 160 and a slider 170. The guide rail 160 is disposed on the main water pipe 120 and extends along a first direction. The slider 170 is fixedly disposed and slidably connected to the guide rail 160. Thus, the moving direction of the main water pipe 120 and the water spray ring 110 can be restricted by the sliding connection between the guide rail 160 and the slider 170. Thus, the stability of the water spray ring 110 when moving can be improved.

[0042] like Figure 1 As shown, in some embodiments, the feeding mechanism 200 includes a medium tank 210 and a heater 230. The medium tank 210 is used to store the quenching medium, and the medium tank 210 is connected to the water spray ring 110 by a pipeline. The heater 230 is disposed on the medium tank 210 and is used to heat the quenching medium in the medium tank 210. Thus, the quenching medium in the medium tank 210 can be heated by the heater 230, so that the quenching medium reaches a predetermined temperature, thereby improving the quenching effect.

[0043] like Figure 2 As shown, in some embodiments, the feeding mechanism 200 further includes a thermometer 220, which is installed on the medium tank 210 and is used to detect the temperature of the quenching medium in the medium tank 210. When the thermometer 220 detects that the temperature of the quenching medium is lower than the first temperature threshold, the heater 230 is controlled to heat the quenching medium, and when the thermometer 220 detects that the temperature of the quenching medium is higher than the second temperature threshold, the heater 230 is controlled to stop heating the quenching medium. Thus, the temperature of the quenching medium in the medium tank 210 can be detected by the thermometer 220, and the heater 230 can be controlled to start or stop heating the quenching medium in the medium tank 210 according to the detection result. Thus, the control capability and control accuracy of the temperature of the quenching medium can be improved, thereby improving the quenching effect.

[0044] like Figure 2As shown, in some embodiments, the feeding mechanism 200 further includes a cooling tower 240 and a first liquid pump 250. The cooling tower 240 is connected to the medium tank 210 by a pipeline. The first liquid pump 250 is arranged on the pipeline connected between the cooling tower 240 and the medium tank 210, and is used to drive the quenching medium to circulate between the cooling tower 240 and the medium tank 210. When the thermometer 220 detects that the temperature of the quenching medium is higher than the second temperature threshold, the first liquid pump 250 is controlled to drive the quenching medium to circulate between the cooling tower 240 and the medium tank 210. Thus, by setting the cooling tower 240, the quenching medium is circulated between the medium tank 210 and the cooling tower 240, so that the quenching medium in the medium tank 210 can be cooled. Thus, when the thermometer 220 detects that the temperature of the quenching medium in the medium tank 210 exceeds the second temperature threshold, the quenching medium can be driven to circulate between the medium tank 210 and the cooling tower 240, so that the quenching medium can be quickly cooled to reach a predetermined temperature. Thereby, the ability to control the temperature of the quenching medium can be improved.

[0045] like Figure 3 As shown, in some embodiments, the feeding mechanism 200 further includes a clean water tank 270 and a second liquid pump 280. The clean water tank 270 is used to store water, and the clean water tank 270 is connected to the medium tank 210 through a pipeline. The second liquid pump 280 is disposed on a pipeline connected between the clean water tank 270 and the medium tank 210, and is used to drive the water in the clean water tank 270 to enter the medium tank 210 through the pipeline. Thus, the water in the clean water tank 270 can be driven to enter the medium tank 210 by the second liquid pump 280, so that the medium concentration of the quenching medium in the medium tank 210 can be adjusted. Specifically, when the medium concentration of the quenching medium in the medium tank 210 is too high, clean water can be injected into the medium tank 210, so that the medium concentration of the quenching medium in the medium tank 210 can be reduced.

[0046] like Figure 3 As shown, in some embodiments, the feeding mechanism 200 further includes a medium standby tank 290 and a third liquid pump 300. The medium standby tank 290 is used to store a medium stock solution, and the medium standby tank 290 is connected to the medium tank 210 through a pipeline. The third liquid pump 300 is disposed on a pipeline connected between the medium standby tank 290 and the medium tank 210, and is used to drive the medium stock solution in the medium standby tank 290 to enter the medium tank 210 through the pipeline. Thus, the medium stock solution in the medium tank 210 can be driven into the medium tank 210 by the third liquid pump 300, so that the medium concentration of the quenching medium in the medium tank 210 can be adjusted. Specifically, when the medium concentration of the quenching medium in the medium tank 210 is too low, the medium stock solution can be injected into the medium tank 210, so that the medium concentration of the quenching medium in the medium tank 210 can be increased.

[0047] like Figure 3As shown, in some embodiments, the feeding mechanism 200 further includes a concentration detector 260, which is disposed on the medium tank 210 and is used to detect the medium concentration in the quenching medium in the medium tank 210. When the concentration detector 260 detects that the medium concentration of the quenching medium is higher than the first concentration threshold, the second liquid pump 280 is controlled to drive the water in the clean water tank 270 to enter the medium tank 210 through the pipeline. When the concentration detector 260 detects that the medium concentration of the quenching medium is lower than the second concentration threshold, the third liquid pump 300 is controlled to drive the medium stock solution in the medium standby tank 290 to enter the medium tank 210 through the pipeline. Thus, the medium concentration in the medium tank 210 can be detected by the concentration detector 260, and the second liquid pump 280 or the third liquid pump 300 can be controlled to work according to the detection result. Thus, the medium concentration of the quenching medium in the medium tank 210 can be controlled in real time, so that the medium concentration is maintained between the first concentration threshold and the second concentration threshold. Thus, the stability of the medium concentration of the quenching medium can be improved, thereby improving the quenching effect.

[0048] The above content is an exemplary description of a possible embodiment of the automatic control device for screw quenching 10. Next, in conjunction with the accompanying drawings, the specific structure of the automatic control device for screw quenching 10 in the present application is described in detail in a specific embodiment.

[0049] Figure 1 It is a structural schematic diagram of the quenching mechanism 100 of the screw quenching automatic control device 10 in the present application; Figure 2 This is one of the structural schematic diagrams of the feeding mechanism 200 of the screw quenching automatic control device 10 in this application; Figure 3 This is the second structural diagram of the feeding mechanism 200 of the screw quenching automatic control device 10 in this application. Figure 1-Figure 3 As shown, the screw quenching automatic control device 10 includes a quenching mechanism 100 and a feeding mechanism 200 . The quenching mechanism 100 is used to quench the screw, and the feeding mechanism 200 is used to provide quenching medium to the quenching mechanism 100 .

[0050] like Figure 1 As shown, the quenching mechanism 100 includes a water spray ring 110 and a main water pipe 120. The main water pipe 120 is arranged in a vertical direction (first direction) and is connected to the feed mechanism 200 by a pipeline. The water spray ring 110 is in a circular ring shape, installed at the lower end of the main water pipe 120, and connected to the main water pipe 120. The axis of the water spray ring 110 is arranged in a horizontal direction, which is the same as the extension direction of the lead screw during quenching. The inner circumference of the water spray ring 110 is evenly provided with a plurality of water spray ports. After the quenching medium in the main water pipe 120 enters the water spray ring 110, it can be sprayed from the water spray port toward the axial direction of the water spray ring 110, so that the temperature of the lead screw during quenching is more uniform, thereby improving the quenching effect.

[0051] like Figure 1 As shown, the quenching mechanism 100 also includes a motor 130, a gear 140 and a rack 150. The motor 130 is fixed on the frame or the ground of the lead screw quenching automatic control device 10, the rack 150 is fixed on the main water pipe 120 and extends in the vertical direction, and the gear 140 is fixed on the driving shaft of the motor 130 and meshes with the rack 150. Thus, the rack 150, the main water pipe 120 and the water spray ring 110 can be driven to move up and down in the vertical direction through the forward and reverse rotation of the motor 130. Specifically, when the model of the lead screw changes, the water spray ring 110 can be driven to rise or fall by the motor 130, so that the axis of the water spray ring 110 coincides with the axis of the lead screw during quenching, so that the lead screw can be located at the axis position of the water spray pot during quenching to improve the quenching effect.

[0052] like Figure 1 As shown, the quenching mechanism 100 also includes a slide rail 160 and a slider 170. The slide rail 160 is fixed on the main water pipe 120 and extends in the vertical direction. The slider 170 is fixed on the frame or the ground of the lead screw quenching automatic control device 10 and is slidably connected with the slide rail 160. When the main water pipe 120 moves up and down under the drive of the motor 130, the movement of the main water pipe 120 can be restricted by the sliding connection between the slide rail 160 and the slider 170, thereby improving the stability of the main water pipe 120 when moving.

[0053] like Figure 2 As shown, the feeding mechanism 200 includes a medium tank 210, a thermometer 220, a heater 230, a cooling tower 240 and a first liquid pump 250. The medium tank 210 is used to store quenching medium, and the medium tank 210 is connected to the main water pipe 120 through a pipeline. A quenching pump (not shown) is arranged on the pipeline between the medium tank 210 and the main water pipe 120, which is used to drive the quenching medium in the medium tank 210 to flow into the main pipeline and be sprayed out by the water spray ring 110. The thermometer 220 is installed on the medium tank 210 to detect the temperature of the quenching medium in the medium tank 210. The heater 230 is arranged on the medium tank 210 to heat the quenching medium in the medium tank 210. The cooling tower 240 is used to cool the quenching medium, and the cooling tower 240 is connected to the medium tank 210 through two pipelines. The first liquid pump 250 is disposed on one of the two pipes connected between the cooling tower 240 and the medium tank 210, and is used to drive the quenching medium to circulate between the cooling tower 240 and the medium tank 210, so that the quenching medium in the medium tank 210 can enter the cooling tower 240 for cooling, and then return to the medium tank 210, thereby reducing the temperature of the quenching medium in the medium tank 210.

[0054] like Figure 3As shown, the feeding mechanism 200 also includes a concentration detector 260, a clean water tank 270, a second liquid pump 280, a medium standby tank 290 and a third liquid pump 300. The concentration detector 260 is arranged on the medium tank 210, and is used to detect the medium concentration in the quenching medium in the medium tank 210. The clean water tank 270 is used to store water, and the clean water tank 270 is connected to the medium tank 210 through a pipeline. The second liquid pump 280 is arranged on the pipeline connected between the clean water tank 270 and the medium tank 210, and is used to drive the water in the clean water tank 270 to enter the medium tank 210 through the pipeline to reduce the medium concentration of the quenching medium in the medium tank 210. The medium standby tank 290 is used to store the medium stock solution, and the medium stock solution has a high concentration of the medium, and the medium standby tank 290 is connected to the medium tank 210 through a pipeline. The third liquid pump 300 is disposed on the pipeline connecting the medium reserve tank 290 and the medium tank 210 , and is used to drive the medium stock solution in the medium reserve tank 290 to enter the medium tank 210 through the pipeline to increase the medium concentration of the quenching medium in the medium tank 210 .

[0055] Furthermore, a flow meter (not shown) is provided on the main water pipe 120 or the pipeline between the main water pipe 120 and the medium tank 210 , and the flow meter can detect the flow of the quenching medium provided by the medium tank 210 to the main water pipe 120 and the water spray ring 110 .

[0056] Furthermore, a quenching valve (not shown) is provided on the main water pipe 120 or the pipe between the main water pipe 120 and the medium tank 210 . The quenching valve can adjust the flow of the quenching medium from the medium tank 210 to the water spray ring 110 by controlling its opening.

[0057] Figure 4 FIG. 1 is a control schematic diagram of the quenching mechanism 100 of the screw quenching automatic control device 10 in this application. Figure 4 As shown, the specific control principle of using the quenching mechanism 100 of the screw quenching automatic control device 10 in the present application to quench the screw includes:

[0058] Input the screw specification model, the system automatically calculates the height position of the water spray ring 110 and outputs a motion command, the motor 130 drives the gear 140 to rotate according to the command, the rack 150 moves up and down with the rotation of the gear 140, the main water pipe 120, the guide rail and the water spray ring 110 move with the rack 150 until the water spray ring 110 moves to the position calculated by the system (the position where the axis of the water spray ring 110 coincides with the axis of the screw).

[0059] Start the quenching pump, and the quenching medium begins to circulate in an unloaded spray quenching cycle. The thermometer 220 detects the temperature of the quenching medium in the medium tank 210. If the quenching medium temperature is within 25°C-30°C (different products have different ranges), it meets the temperature requirements and the medium concentration test can be performed. If the medium temperature is greater than 30°C (the second temperature threshold), the cooling system is turned on, that is, the heater 230 is controlled to stop heating, and the cooling tower 240 is started to start the cooling mode. The first liquid pump 250 is started, and the quenching medium in the medium tank 210 is transported to the cooling tower 240 through a pipeline for cooling. The cooled medium is then transported back to the medium tank 210 through a pipeline, and the cooling cycle is continued until the temperature of the quenching medium in the medium tank 210 reaches the required range. If the temperature of the quenching medium is less than 25°C (the first temperature threshold), the heating system is turned on, that is, the first liquid pump 250 is controlled to stop, and the heater 230 is controlled to start heating, and the heating is continued until the temperature of the quenching medium in the medium tank 210 reaches the required range.

[0060] After the quenching medium temperature reaches the requirement, the concentration detector 260 detects the medium concentration of the quenching medium in the medium tank 210. If the medium concentration is in the range of 8%-12% (different products have different ranges), it meets the medium concentration requirements for the quenching medium and flow detection can be performed. If the medium concentration is higher than 12% (the first concentration threshold), start the second liquid pump 280 to transport the water in the clean water tank 270 to the medium tank 210 through a pipeline to dilute the quenching medium in the medium tank 210 until the medium concentration reaches the required concentration. If the medium concentration is lower than 8% (the second concentration threshold), start the third liquid pump 300 to transport the medium stock solution in the medium standby tank 290 to the medium tank 210 through a pipeline until the medium concentration reaches the required concentration.

[0061] It should be noted that the medium tank 210 may also be installed with an internal circulation system or a stirring system to continuously stir and mix the medium in the entire medium tank 210 , thereby ensuring uniformity of the medium concentration and temperature of the quenching medium at different positions in the medium tank 210 .

[0062] When the medium concentration reaches the requirement, the flow meter detects the flow of the quenching medium. 3 / h range (each specification of screw has different requirements), the flow rate is normal and you can proceed to the next step to continue quenching the screw. 3 / h, the quenching valve automatically reduces its opening until the flow rate reaches the required range. 3 / h, the quenching valve automatically increases its opening until the flow rate reaches the required range.

[0063] At this point, the temperature, concentration and flow rate of the quenching medium sprayed by the water spray ring 110 all meet the requirements, the adjustment step is completed, the quenching pump is controlled to stop no-load spray quenching, and a production permission signal is output to the system to start the ball screw quenching process. During the production process, the medium temperature, concentration and flow rate are detected in real time to determine whether the production process requirements are met at any time and automatically make corresponding adjustments.

[0064] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.

Claims

1. A screw quenching automatic control device, characterized in that: include: A quenching mechanism, wherein the quenching mechanism has a water spray ring, the water spray ring is used to spray a quenching medium, and the quenching mechanism can drive the water spray ring to move along a first direction; A feeding mechanism is connected to the water spray ring pipeline and is used to provide quenching medium to the water spray ring.

2. The automatic control device for screw quenching according to claim 1, characterized in that: The quenching mechanism also includes: A main water pipe, the main water pipe extending along the first direction, the water spray ring installed at one end of the main water pipe, and the other end of the main water pipe connected to the feed mechanism pipeline; A motor is connected to the main water pipe to drive the main water pipe to move along the first direction.

3. The automatic control device for screw quenching according to claim 2, characterized in that: The quenching mechanism also includes: A rack, the rack being mounted on the main water pipe and extending along the first direction; A gear is mounted on the driving shaft of the motor and meshes with the rack.

4. The automatic control device for screw quenching according to claim 3, characterized in that: The quenching mechanism also includes: A guide rail, which is arranged on the main water pipe and extends along the first direction; The slider is fixedly arranged and slidably connected with the guide rail.

5. The automatic control device for screw quenching according to any one of claims 1 to 4, characterized in that: The feeding mechanism comprises: A medium tank, the medium tank is used to store quenching medium, and the medium tank is connected to the water spray ring pipeline; A heater is disposed on the medium tank and is used to heat the quenching medium in the medium tank.

6. The automatic control device for screw quenching according to claim 5, characterized in that: The feeding mechanism also includes: A temperature measuring instrument, which is installed on the medium tank and is used to detect the temperature of the quenching medium in the medium tank; When the thermometer detects that the temperature of the quenching medium is lower than a first temperature threshold, the heater is controlled to heat the quenching medium; when the thermometer detects that the temperature of the quenching medium is higher than a second temperature threshold, the heater is controlled to stop heating the quenching medium.

7. The automatic control device for screw quenching according to claim 6, characterized in that: The feeding mechanism also includes: A cooling tower, the cooling tower is connected to the medium tank pipeline; A first liquid pump, which is arranged on a pipeline connecting the cooling tower and the medium tank, and is used to drive the quenching medium to circulate between the cooling tower and the medium tank; When the temperature measuring instrument detects that the temperature of the quenching medium is higher than a second temperature threshold, the first liquid pump is controlled to drive the quenching medium to circulate between the cooling tower and the medium tank.

8. The automatic screw quenching control device according to claim 6, characterized in that: The feeding mechanism also includes: A clean water tank, the clean water tank is used to store water, and the clean water tank is connected to the medium tank pipeline; The second liquid pump is arranged on the pipeline connecting the clean water tank and the medium tank, and is used to drive the water in the clean water tank to enter the medium tank through the pipeline.

9. The automatic screw quenching control device according to claim 8, characterized in that: The feeding mechanism also includes: A medium standby tank, the medium standby tank is used to store the medium stock solution, and the medium standby tank is connected to the medium tank pipeline; The third liquid pump is arranged on the pipeline connecting the medium standby tank and the medium tank, and is used to drive the medium raw liquid in the medium standby tank to enter the medium tank through the pipeline.

10. The automatic screw quenching control device according to claim 9, characterized in that: The feeding mechanism also includes: A concentration detector is arranged on the medium tank and is used to detect the medium concentration in the quenching medium in the medium tank; when the concentration detector detects that the medium concentration of the quenching medium is higher than a first concentration threshold, the second liquid pump is controlled to drive the water in the clean water tank to enter the medium tank through a pipeline; when the concentration detector detects that the medium concentration of the quenching medium is lower than a second concentration threshold, the third liquid pump is controlled to drive the medium raw liquid in the medium standby tank to enter the medium tank through a pipeline.

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