Intelligent water spraying cooling device for workpieces

Abstract

The utility model relates to the technical field of workpiece machining, in particular to an intelligent water spraying cooling device for workpieces. An intelligent workpiece water spraying cooling device comprises a machine table, a workpiece machining assembly, a laser temperature sensor, a numerical control system and a cooling system, the workpiece machining assembly is arranged on the machine table, the laser temperature sensor is arranged on one side of the workpiece machining assembly, and the cooling system is arranged on the other side of the workpiece machining assembly. According to the utility model, the laser temperature sensor is additionally arranged on the workpiece processing machine table to detect the temperature of the machine table, and the laser temperature sensor and the numerical control system are different in output variable, so that the hardware converter is arranged to enable the laser temperature sensor and the numerical control system to communicate; meanwhile, an alternating current contactor and an intermediate relay are additionally arranged between the numerical control system and the cooling pump water pumping motor, whether the cooling pump water pumping motor is started or not is controlled through a threshold value program set in the numerical control system and high and low levels of the output end, intelligent control over water spraying of the cooling system is achieved, and therefore cooling of workpieces is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece processing, in particular to an intelligent water spray cooling device for workpieces. Background Art

[0002] In the prior art, when a CNC machine tool sprays cooling water on a workpiece being processed, it is generally controlled by buttons or M codes. It is necessary to manually press buttons or add M codes to the processing macro program to control the operation of the cooling pump. The cooling pump cannot be turned on intelligently according to the actual temperature of the workpiece being processed, and the amount of water cannot be intelligently controlled. Utility Model Content

[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a workpiece intelligent water spray cooling device, which is used to detect the temperature of the workpiece processing machine by adding a laser temperature sensor to the workpiece processing machine. Since the output variables between the laser temperature sensor and the numerical control system are different, a hardware converter is set to enable the two to communicate. At the same time, an AC contactor and an intermediate relay are added between the numerical control system and the cooling pump water pumping motor. The threshold program set in the numerical control system and the high and low levels of the output end are used to control whether the cooling pump water pumping motor is turned on, thereby realizing intelligent control of the cooling system to spray water, thereby realizing timely cooling of the workpiece.

[0005] The utility model provides an intelligent water spray cooling device for workpieces, comprising a machine, a workpiece processing component, a laser temperature sensor, a numerical control system and a cooling system. The machine is provided with the workpiece processing component, the laser temperature sensor is provided on one side of the workpiece processing component, the cooling system is provided on the other side of the workpiece processing component, the numerical control system is provided on the machine, the laser temperature sensor is electrically connected to the numerical control system, and the numerical control system is electrically connected to the cooling system. The combination of the machine and the workpiece processing component constitutes a basic device for workpiece processing. The added laser temperature sensor is used to sense the temperature of the workpiece on the machine in real time. After being processed by the numerical control system, the opening and closing of the cooling system can be controlled according to the temperature, so as to realize intelligent water spray cooling of the processed workpiece.

[0006] In some embodiments, the cooling system includes a cooling pump outlet and a cooling pump water pumping motor, the cooling pump water pumping motor is arranged in the machine, and the cooling pump outlet is arranged on the workpiece processing assembly. The cooling system is used to spray water to cool the workpiece on the machine in time. Preferably, the cooling pump outlet can be provided with multiple groups of nozzles, and the water output can be adjusted under the control of the numerical control system to meet the requirements of different cooling efficiencies of the workpiece. It should be understood that the cooling system also includes other components such as water inlet pipes, water storage tanks, and connecting pipes. Since this application only involves the control of the motor and the water outlet, the above components are only described in the cooling system, which does not mean that the system lacks the necessary components to realize the cooling water spraying function. The specific components and structures of the cooling system can refer to the machine water spraying device in the prior art.

[0007] In some embodiments, a hardware converter is also provided between the laser temperature sensor and the numerical control system, and the hardware converter is an RS485 to RJ45 module. Since the output variables between the laser temperature sensor and the numerical control system are different, a hardware converter is provided to enable the two to communicate. Preferably, the hardware converter is an RS485 to RJ45 module, and the numerical control system is a Siemens 828D numerical control system controller.

[0008] In some embodiments, the cooling pump water pumping motor is externally connected to a 380V three-phase power supply, and a three-phase arc extinguisher, a thermal overload relay and an AC contactor are arranged between the cooling pump water pumping motor and the three-phase power supply. When the cooling pump water pumping motor is externally connected to a 380V power supply, a three-phase arc extinguisher and a thermal overload relay are added to the circuit. The three-phase arc extinguisher can clear the high voltage surge, voltage interference and static electricity generated in the electronic circuit, thereby improving and protecting the characteristics of the electronic circuit, improving the reliability and service life of the electronic equipment, and ensuring the quality of the product, while the thermal overload relay is used to overload the asynchronous motor to achieve safe operation, and the set AC contactor is used to match the contactor coil and the intermediate relay to realize the control of whether the numerical control system turns on the water pumping motor.

[0009] In some embodiments, a contactor coil is also included, the contactor coil is externally connected to a 220V voltage power supply, and the contactor coil is linked to the AC contactor. The contactor coil is a component in the AC contactor. When the control coil is energized, the coil generates a magnetic field, and the magnetic field attracts the armature through the iron core, and the armature drives all the moving contacts to move through the connecting rod, and contact or disconnect with their respective static contacts. The specific structure and principle of the AC contactor can refer to the prior art.

[0010] In some embodiments, when the contactor coil is energized, the AC contactor is turned on, and when the contactor coil is disconnected, the AC contactor is not turned on. The contactor coil and the intermediate relay are in the same circuit, and the contactor coil is energized by controlling the intermediate relay, thereby controlling the AC contactor linked to the contactor coil.

[0011] In some embodiments, an intermediate relay is further provided between the contactor coil and the 220V voltage power supply, the intermediate relay comprising a relay coil and a normally open contact, the normally open contact being provided between the contactor coil and the 220V voltage power supply. When multiple voltage levels appear in the line environment, such as 380V voltage, 220V voltage or even DC 24V voltage, an intermediate relay can be used to cooperate with the AC contactor for conversion. At the same time, the intermediate relay has the advantage of being controllable by a CNC machine tool, thereby realizing the function of controlling the on and off of the cooling pump pumping motor from the signal output of the CNC machine tool.

[0012] In some embodiments, the relay coil is connected to the output end of the numerical control system, and the numerical control system realizes the switch control of the normally open contact by outputting high and low levels to the relay coil. The relay coil is connected to the output end of the numerical control system, so that the numerical control machine tool signal can control the relay coil.

[0013] In some embodiments, a temperature threshold is set in the numerical control system. When the temperature detected by the laser temperature sensor is greater than the temperature threshold, a high level is output to the intermediate relay. When the temperature detected by the laser temperature sensor is lower than the temperature threshold, a low level is output to the intermediate relay. The temperature threshold set in the numerical control system is used to match the laser temperature sensor. When the temperature of the workpiece detected is greater than a certain threshold, the cooling system is turned on after analysis by the numerical control system. Preferably, multiple step thresholds can be set in the numerical control system to match the required temperature of different types of workpieces. Accordingly, the numerical control system can choose to turn on one or more groups of water outlets in the cooling system to adjust the cooling rate. It should be understood that the program for setting the temperature threshold and distinguishing and controlling the opening of different numbers of water outlets is a common technology in the software field. The specific program and code will not be described in detail again. For details, please refer to the prior art.

[0014] By adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model adds a laser temperature sensor to a workpiece processing machine to detect the temperature of the machine. Since the output variables between the laser temperature sensor and the numerical control system are different, a hardware converter is set to enable the two to communicate. At the same time, an AC contactor and an intermediate relay are added between the numerical control system and the cooling pump water pumping motor. Through the threshold program set in the numerical control system and the high and low levels of the output end, the cooling pump water pumping motor is controlled to be turned on or not, and the intelligent control of the cooling system to spray water is realized, so that the workpiece is cooled in time.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0017] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.

[0018] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the cooling device in some embodiments of the utility model;

[0023] Figure 2 It is a schematic diagram of the connection between the cooling system and the numerical control system in some embodiments of the utility model.

[0024] Description of main reference numerals:

[0025] 1. Machine;

[0026] 2. Workpiece processing components;

[0027] 3. Laser temperature sensor;

[0028] 4. CNC system;

[0029] 5. Cooling system;

[0030] 51. Cooling pump water outlet; 52. Cooling pump water pumping motor;

[0031] 6. Hardware converter;

[0032] 7. Three-phase arc extinguisher;

[0033] 8. Thermal overload relay;

[0034] 9. AC contactor;

[0035] 10. Contactor coil;

[0036] 11. Intermediate relay. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.

[0038] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0041] Reference Figure 1 , Figure 1 It is a schematic diagram of the overall structure of the cooling device in some embodiments of the utility model.

[0042] According to some embodiments of the utility model, the utility model provides a workpiece intelligent water spray cooling device, including a machine 1, a workpiece processing component 2, a laser temperature sensor 3, a numerical control system 4 and a cooling system 5. The workpiece processing component 2 is arranged on the machine 1, the laser temperature sensor 3 is arranged on one side of the workpiece processing component 2, and the cooling system 5 is arranged on the other side of the workpiece processing component 2. The numerical control system 4 is arranged on the machine 1, and the laser temperature sensor is electrically connected to the numerical control system 4, and the numerical control system 4 is electrically connected to the cooling system 5. The combination of the machine 1 and the workpiece processing component 2 constitutes a basic device for workpiece processing. The added laser temperature sensor 3 is used to sense the temperature of the workpiece on the machine 1 in real time. After being processed by the numerical control system 4, the opening and closing of the cooling system 5 can be controlled according to the temperature to realize intelligent water spray cooling of the processed workpiece.

[0043] The cooling system 5 includes a cooling pump outlet 51 and a cooling pump water pumping motor 52. The cooling pump water pumping motor 52 is arranged in the machine 1, and the cooling pump outlet 51 is arranged on the workpiece processing assembly 2. The cooling system 5 is used to spray water to cool down the workpiece on the machine 1 in time. Preferably, the cooling pump outlet 51 can be provided with multiple groups of nozzles, and the water output can be adjusted under the control of the numerical control system 4 to meet the requirements of different cooling efficiencies of the workpiece. It should be understood that the cooling system 5 also includes other components such as a water inlet pipe, a water storage tank, and a connecting pipe. Since this application only involves the control of the motor and the water outlet, the above components are only described in the cooling system 5, which does not mean that the system lacks the necessary components for realizing the cooling water spraying function. The specific components and structures of the cooling system 5 can refer to the water spraying device of the machine 1 in the prior art.

[0044] Reference Figure 2 , Figure 2 It is a schematic diagram of the connection between the cooling system and the numerical control system in some embodiments of the utility model.

[0045] According to some embodiments of the utility model, optionally, a hardware converter 6 is further provided between the laser temperature sensor and the numerical control system 4, and the hardware converter 6 is a RS485 to RJ45 module. Since the output variables between the laser temperature sensor 3 and the numerical control system 4 are different, a hardware converter 6 is provided so that the two can communicate, preferably, the hardware converter 6 is a RS485 to RJ45 module, and the numerical control system 4 is a Siemens 828D numerical control system 4 controller.

[0046] The cooling pump water pumping motor 52 is externally connected to a 380V three-phase power supply, and a three-phase arc extinguisher 7, a thermal overload relay 8 and an AC contactor 9 are arranged between the cooling pump water pumping motor 52 and the three-phase power supply. When the cooling pump water pumping motor 52 is externally connected to a 380V power supply, a three-phase arc extinguisher 7 and a thermal overload relay 8 are added to the circuit. The three-phase arc extinguisher 7 can remove high voltage surges, voltage interference and static electricity generated in the electronic circuit, thereby improving and protecting the characteristics of the electronic circuit, improving the reliability and service life of the electronic equipment, and ensuring the quality of the product, while the thermal overload relay 8 is used to overload the asynchronous motor to achieve safe operation, and the arranged AC contactor 9 is used to match the contactor coil 10 and the intermediate relay 11 to achieve the control of whether the numerical control system 4 turns on the water pumping motor.

[0047] The device also includes a contactor coil 10, which is externally connected to a 220V voltage power supply and is linked to the AC contactor 9. The contactor coil 10 is a component in the AC contactor 9. When the control coil is energized, the coil generates a magnetic field, which attracts the armature through the iron core, and the armature drives all the moving contacts to move through the connecting rod, and contact or disconnect with their respective static contacts. The specific structure and principle of the AC contactor 9 can refer to the prior art.

[0048] When the contactor coil 10 is energized, the AC contactor 9 is turned on, and when the contactor coil 10 is disconnected, the AC contactor 9 is not turned on. The contactor coil 10 and the intermediate relay 11 are in the same circuit, and the contactor coil 10 is energized by controlling the intermediate relay 11, thereby controlling the AC contactor 9 linked to the contactor coil 10.

[0049] An intermediate relay 11 is also provided between the contactor coil 10 and the 220V voltage power supply, and the intermediate relay 11 includes a relay coil and a normally open contact, and the normally open contact is provided between the contactor coil 10 and the 220V voltage power supply. When multiple voltage levels appear in the line environment, such as 380V voltage, 220V voltage, or even DC 24V voltage, the intermediate relay 11 can be used to cooperate with the AC contactor 9 for conversion. At the same time, the intermediate relay 11 has the advantage of being controllable by a CNC machine tool, thereby realizing the realization of the signal output from the CNC machine tool to the control of the cooling pump pumping motor 52 to turn on and off the function.

[0050] The relay coil is connected to the output end of the numerical control system 4, and the numerical control system 4 realizes the switch control of the normally open contact by outputting high and low levels to the relay coil. The relay coil is connected to the output end of the numerical control system 4, so that the numerical control machine tool signal can control the relay coil.

[0051] The numerical control system 4 is provided with a temperature threshold. When the temperature detected by the laser temperature sensor is greater than the temperature threshold, a high level is output to the intermediate relay 11. When the temperature detected by the laser temperature sensor is lower than the temperature threshold, a low level is output to the intermediate relay 11. The temperature threshold set in the numerical control system 4 is used to match the laser temperature sensor 3. When the temperature of the workpiece detected is greater than a certain threshold, the cooling system 5 is turned on after analysis by the numerical control system 4. Preferably, multiple step-type thresholds can be set in the numerical control system 4 to match the required temperature of different types of workpieces. Accordingly, the numerical control system 4 can choose to turn on one or more groups of water outlets in the cooling system 5 to adjust the cooling rate. It should be understood that the program for setting the temperature threshold and distinguishing and controlling the opening of different numbers of water outlets is a common technology in the software field. The specific program and code will not be described in detail again. For details, please refer to the prior art.

[0052] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0053] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the utility model. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0054] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the utility model. However, those skilled in the relevant art will understand that the utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A workpiece intelligent water spray cooling device, characterized in that: The invention comprises a machine platform, a workpiece processing component, a laser temperature sensor, a numerical control system and a cooling system. The workpiece processing component is arranged on the machine platform, the laser temperature sensor is arranged on one side of the workpiece processing component, the cooling system is arranged on the other side of the workpiece processing component, the numerical control system is arranged on the machine platform, the laser temperature sensor is electrically connected to the numerical control system, and the numerical control system is electrically connected to the cooling system.

2. The workpiece intelligent water spray cooling device according to claim 1 is characterized in that: The cooling system comprises a cooling pump water outlet and a cooling pump water pumping motor. The cooling pump water pumping motor is arranged in the machine platform, and the cooling pump water outlet is arranged on the workpiece processing component.

3. The workpiece intelligent water spray cooling device according to claim 1 is characterized in that: A hardware converter is also provided between the laser temperature sensor and the numerical control system, and the hardware converter is an RS485 to RJ45 module.

4. The workpiece intelligent water spray cooling device according to claim 2 is characterized in that: The cooling pump water pumping motor is externally connected to a 380V three-phase power supply, and a three-phase arc extinguisher, a thermal overload relay and an AC contactor are arranged between the cooling pump water pumping motor and the three-phase power supply.

5. The workpiece intelligent water spray cooling device according to claim 4 is characterized in that: It also includes a contactor coil, which is externally connected to a 220V voltage power supply and is linked to the AC contactor.

6. The workpiece intelligent water spray cooling device according to claim 5 is characterized in that: When the contactor coil is energized, the AC contactor is turned on, and when the contactor coil is disconnected, the AC contactor is not turned on.

7. The workpiece intelligent water spray cooling device according to claim 5, characterized in that: An intermediate relay is also arranged between the contactor coil and the 220V voltage power supply. The intermediate relay comprises a relay coil and a normally open contact. The normally open contact is arranged between the contactor coil and the 220V voltage power supply.

8. The workpiece intelligent water spray cooling device according to claim 7, characterized in that: The relay coil is connected to the output end of the numerical control system, and the numerical control system realizes switch control of the normally open contact by outputting high and low levels to the relay coil.

9. The workpiece intelligent water spray cooling device according to claim 7, characterized in that: A temperature threshold is set in the numerical control system. When the temperature detected by the laser temperature sensor is greater than the temperature threshold, a high level is output to the intermediate relay. When the temperature detected by the laser temperature sensor is lower than the temperature threshold, a low level is output to the intermediate relay.

Images