TWI749688B - Data collection control device for cooling machine - Google Patents

Abstract

A data collection control device for a cooling machine, the cooling machine is suitable for providing a cooling medium to a processing machine to control the working temperature of the processing machine, the data collection control device includes a connection interface, and is pluggable and electrically connected to A sensor board and a control board of the connection interface. The sensing machine board includes a number interface, and each interface is used to input a working parameter, and the working parameter comes from the working process of the processing machine and the cooling machine. The control board generates a control parameter according to the working parameters, and the control parameter is used to control at least one of the flow rate, flow rate, pressure, and heat exchange efficiency of the cooling medium in the cooler. Thereby, the present invention simultaneously uses the working parameters from the processing machine and the cooling machine to control the flow rate, flow, pressure, and heat exchange efficiency of the cooling medium, so that the external cooling machine can more accurately control the working temperature of the processing machine , And meet the processing requirements of the processing machine.

Description

Data collection control device for cooling machine

The invention relates to a plug-in cooler, in particular to a data collection control device for the cooler.

Generally used for external cooling machines of processing machines, mainly to make the cooling liquid circulate between the processing machine and external cooling machines to achieve the effect of cooling the processing machine. Because the external cooling machine is easy to install and has high mobility, it is widely used in the field of processing machines.

Since the external cooler operates independently, when determining the relevant parameters of the coolant, only the working parameters of the external cooler will be referred to, such as the temperature, pressure, flow rate, etc. of the coolant when the external cooler is output , And the temperature, pressure, flow rate, etc. returned by the processing machine. Although this method can also make the processing machine achieve the purpose of cooling down, it will not be possible if the external cooling machine does not know the actual working parameters of the processing machine The problem of meeting the processing requirements of the processing machine, so that there is still room for improvement when controlling the accuracy of the working temperature of the processing machine.

Therefore, the purpose of the present invention is to provide a data collection control device for a cooling machine that can more accurately control the working temperature of a processing machine and meet the processing requirements of the processing machine.

Therefore, the data collection control device of the cooling machine of the present invention is suitable for providing a cooling medium to a processing machine for controlling the working temperature of the processing machine. The data collection control device includes: a connection interface, a sensor Board, and a control board.

The sensor board is pluggably electrically connected to the connection interface and includes a number interface. Each interface is used for inputting a working parameter, and the working parameter comes from the working process of the processing machine and the cooling machine.

The control board is pluggable and electrically connected to the connection interface, and generates a control parameter according to the working parameters. The control parameter is used to control the flow rate, flow, pressure, and heat exchange efficiency of the cooling medium in the cooler. one.

The effect of the present invention is that the working parameters from the processing machine and the cooling machine are used to control the flow rate, flow, pressure, and heat exchange efficiency of the cooling medium at the same time, so that the external cooling machine can more accurately control the work of the processing machine. The temperature meets the processing requirements of the processing machine.

Referring to FIGS. 1, 2 and 3, an embodiment of the data collection control device of the present invention is installed in an external cooling machine 1. The cooling machine 1 is suitable for providing a first cooling medium to a processing machine 2 for controlling the working temperature of several hot spots of the processing machine 2. In this embodiment, the first cooling medium is cooling liquid.

The cooling machine 1 uses a refrigerant as the second cooling medium, and includes a container 11 accommodating the first cooling medium, a heat exchange unit 12 and a pipeline unit 13. The heat exchange unit 12 includes a cooling pipe 121 for circulating a second cooling medium, a compression motor 122 that compresses a low-temperature and low-pressure gaseous refrigerant into a high-pressure, high-temperature gaseous refrigerant, and heat exchanges the high-pressure and high-temperature gaseous refrigerant into a normal temperature and high pressure. A condensing group 123 of the gaseous refrigerant, an expansion valve 124 where the pressure drop of the normal temperature and high pressure gaseous refrigerant becomes a low temperature and low pressure refrigerant, and a heat exchanger 125 for heat exchange between the second cooling medium and the first cooling medium. The pipeline unit 13 includes a main pipe 131 that guides the first cooling medium in the container 11 through the heat exchanger 125, and a main pipe 131 that guides the first cooling medium through the heat exchanger 125 to output to the processing machine 2 An output pipeline 132, an input pipeline 133 that guides the first cooling medium from the processing machine 2 to return to the container 11, and respectively guides the first cooling medium from the container 11 into the main pipe 131 and the output pipeline 132 two pump groups 134 and 135.

The processing machine 2 includes a spindle 21 for processing a workpiece (not shown), and a driving motor 22 for driving the spindle 21 to rotate.

Referring to FIGS. 2, 3 and 4, the data collection control device includes a connection interface 3, a sensor board 4, a frequency conversion board 5, a control board 6, and a power supply board 7.

The sensor board 4 is electrically connected to the connection interface 3 in a pluggable manner, and includes a digital interface 41. Each interface 41 is used to input a working parameter W. The working parameters W come from the working process of the processing machine 2 and the cooling machine 1. In this embodiment, the working parameters W are respectively the amount of vibration and the amount of extension of the main shaft 21 of the processing machine 2, the high and low pressure values of the second cooling medium, the flow rate of the first cooling medium, and the compression motor The current value of 122, the current value of the pump groups 134 and 135, and the pressure value of the first cooling medium.

It should be noted that the working parameters W are not limited to the aforementioned ones. In other variations of this embodiment, they may also be other physical quantities of the first cooling medium or the second cooling medium, such as the electrical conductance of the first cooling medium. Degree, or the power consumption of the second cooling medium, or the service life of various motors, etc., should not be limited by this. And each working parameter W is obtained by a separate sensor (not shown in the figure). Since those skilled in the art can infer the details of the expansion based on the above description, no further description is given.

The frequency converter board 5 is pluggably electrically connected to the connection interface 3, and is suitable for electrically connecting to a commercially available frequency converter (not shown), and then electrically connected to the compression motor 122, the expansion valve 124, and the Pump group 134, 135.

The control board 6 is pluggable and electrically connected to the connection interface 3, and generates a control parameter C according to the working parameters W. The control parameter C is used to control at least one of the flow rate, flow, and pressure of the first cooling medium in the cooling machine 1, or to control at least one of the heat exchange efficiency, high pressure value, and low pressure value of the second cooling medium, Or control the current value of the compression motor 122, or control the current value of the pump groups 134, 135.

The power supply board 7 is pluggable and electrically connected to the connection interface 3 and the market, and is used to supply the power required by the sensing board 4, the frequency conversion board 5 and the control board 6.

Referring to Figure 1, Figure 2 and Figure 4, during heat exchange, the pump group 134 will suck the first cooling medium in the container 11 into the main pipe 131 so that the first cooling medium will follow the main pipe and pass through the heat exchanger 125, and exchange heat with the second cooling medium passing through the heat exchanger 125 in the heat exchanger 125 to maintain the low temperature. Thereby, the pump group 135 will suck the low-temperature first cooling medium in the container 11 and output it to the corresponding hot zone of the processing machine 2 through the output pipeline 132, and then return it from the hot zone through the input pipeline 133. To the container 11. In this way, it goes over and over again, so that the hot zone can achieve the effect of cooling or temperature control.

At the same time, the heat exchange unit 12 compresses the low-temperature and low-pressure gaseous refrigerant into a high-pressure and high-temperature gaseous refrigerant through the compression motor 122, and then exchanges heat with the high-pressure and high-temperature gaseous refrigerant through the condensing group 123, so that the high-pressure and high-temperature gaseous refrigerant becomes normal temperature. The high-pressure gaseous refrigerant will become a low-temperature and low-pressure refrigerant (second cooling medium) after a pressure drop. The first cooling medium of the exchanger 125 performs heat exchange, so that the first cooling medium liquid in the container 11 maintains a low temperature or a desired temperature.

Referring to Figure 1, Figure 2, Figure 3 and Figure 4, it is important that during the working process of the processing machine 2 and the cooling machine 1, the work will be received through the interfaces 41 of the sensing machine board 4 Parameter W, and the control board 6 generates the control parameter C according to the working parameters W to further change the temperature of the first cooling medium. For example, when the vibration of the main shaft 21 is greater than a preset value, the control board 6 can improve the cooling effect of the condensing group 123 or the expansion valve 124 through the inverter board 5, thereby improving the heat exchanger The heat exchange efficiency of 125 reduces the temperature of the first cooling medium or maintains a constant temperature effect.

When the high-pressure pressure value of the second cooling medium is greater than a preset value, the control board 6 can control the current of the compression motor 122 through the inverter board 5 to reduce the speed to prevent the high-pressure refrigerant temperature from becoming too high. A protection mechanism.

When the temperature of the first cooling medium in the input pipe 133 and the temperature of the first cooling medium in the output pipe 132 differ by more than a preset value, the control board 6 can output an analog signal to the pump The pump group 13 increases the speed of the pump group 135, thereby increasing the flow rate of the first cooling medium, and reducing the temperature of the first cooling medium in the input pipe 133 and the first cooling medium in the output pipe 132 Poor, and finally achieve the effect of stabilizing the temperature.

Based on the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. The present invention simultaneously uses the working parameters W from the processing machine 2 and the cooling machine 1 to control at least one of the flow rate, flow, and pressure of the first cooling medium, or to control the heat exchange efficiency and high pressure of the second cooling medium. At least one of the pressure value and the low-pressure pressure value, or the current value of the compression motor 122, or the current value of the pump groups 134, 135 can be controlled to enable the external cooler 1 to more accurately control the processing machine 2 The working temperature meets the processing requirements of the processing machine 2.

2. The present invention can make the sensor board 4, the frequency conversion board 5, the control board 6 and the power supply board 7 independent of each other with a modular design, and it can not only replace the one that meets the requirements according to the use function, The board makes the configuration of the internal space more flexible, and when any board is damaged, only one of the boards can be replaced, which can reduce the maintenance cost.

3. In addition, the control board 6 can also count the hours of use of the compression motor 122, the pump group 134, and the condensation group 123, and calculate the service life, and send it out before the service life reaches a preset life value. An early warning message reminds the user to replace, repair or maintain.

However, the above are only examples of the present invention, and should not be used to limit the scope of implementation of the present invention, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: Cooler 11: container 12: Heat exchange unit 121: Cooling line 122: Compression motor 123: Condensation group 124: Expansion valve 125: heat exchanger 13: Piping unit 131: Supervisor Road 132: output pipeline 133: input pipeline 134: Pump Group 135: Pump Group 2: Processing machine 21: Spindle 22: Drive motor 3: Connection interface 4: Sensor board 41: Interface 5: Inverter board 6: Control board 7: Power supply board W: working parameters C: Control parameters

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a three-dimensional schematic diagram illustrating that an embodiment of a data collection control device of the present invention is installed in an external cooling machine, and the cooling machine is used to control the working temperature of a processing machine; Figure 2 is a block diagram of the cooling machine; Figure 3 is a schematic diagram of the embodiment; and Fig. 4 is a schematic diagram of a circuit of this embodiment.

4: Sensor board

41: Interface

5: Inverter board

6: Control board

7: Power supply board

Claims (7)

A data collection control device for a cooling machine, the cooling machine is suitable for providing a cooling medium to a processing machine for controlling the working temperature of the processing machine, and the data collection control device includes: A connection interface; A sensor board is pluggable and electrically connected to the connection interface, and includes a number interface, each interface is used to input a working parameter, and the working parameter comes from the working process of the processing machine and the cooling machine; and A control board is pluggable and electrically connected to the connection interface, and generates a control parameter based on the working parameters. The control parameter is used to control the flow rate, flow, pressure, and heat exchange efficiency of the cooling medium in the cooler at least one of them. The data collection control device of the cooling machine according to claim 1, further comprising a power supply board that is pluggably electrically connected to the connection interface and used for supplying required power. The data collection and control device for a cooling machine according to claim 1, further comprising a frequency converter board electrically connected to the connection interface, and the frequency converter board is suitable for electrically connecting to a frequency converter sold in the market. The data collection and control device for a cooling machine according to claim 1, wherein the aforementioned working parameter may be at least one of a vibration amount and an elongation amount of a main shaft of the processing machine. The data collection control device for a cooling machine according to claim 1, wherein the working parameter may be at least one of a temperature value, a pressure value, and a flow rate of the cooling medium. The data collection control device for a cooling machine according to claim 1, wherein the operating parameter may be a current value of a compression motor used to control the heat exchange efficiency in the cooling machine. The data collection and control device for a cooling machine according to claim 1, wherein the working parameter may be a pump group used in the cooling machine to guide the cooling medium to circulate between the cooling machine and the processing machine Current value.

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