CN218330324U - Multipoint temperature acquisition device for numerical control machine tool spindle - Google Patents

Abstract

The utility model discloses a multi-point temperature acquisition device for the spindle of a numerically controlled machine tool, which comprises a device body, a temperature measuring probe, a signal processing circuit, an analog-to-digital conversion chip, and a main board circuit. The device body is provided with a main board circuit, a data processing Mechanism, data storage mechanism and data output mechanism, the data storage mechanism includes a number of data storage chips, the device body is also provided with a collection mechanism, the collection mechanism includes a number of temperature measuring probes, beneficial effects: the utility model provides a A device designed for the temperature acquisition of the spindle of a CNC machine tool. The device can realize multi-point temperature measurement by setting multiple temperature measuring probes, and can store a large amount of data by setting multiple memory chips. Not only is the measurement accurate, the measured value is stable and The cost is low, and it can meet the measurement requirements of multi-point temperature.

Description

A multi-point temperature acquisition device for the spindle of CNC machine tools

technical field

The utility model relates to the field of numerical control machine tools, in particular to a multi-point temperature acquisition device for the main shaft of the numerical control machine tool.

Background technique

Temperature measurement is the quantitative measurement of the temperature of an object with a thermometer. The measurement of the temperature physical quantity is actually a certain quantity of the object, and the physical quantity should change monotonously and significantly with the change of the temperature of the object within a certain temperature range. According to the laws of physics, the temperature of the measured object is displayed by the value of the physical quantity. At present, there are dozens of methods for temperature measurement. According to the physical laws on which temperature measurement is based and the physical quantities selected as temperature markers, the measurement methods can be classified into the following categories: expansion thermometry, pressure thermometry, electrical thermometry, magnetic thermometry, acoustic thermometry method and frequency thermometry method.

At present, there are wired and wireless temperature measurement devices that use electrical thermometry, but most of them have fewer temperature probes or cannot store a large amount of temperature data, and the cost is high, so it is difficult to promote their products. It is often difficult to meet the requirements in scientific research.

Utility model content

In order to overcome the shortcomings of the prior art above, the utility model provides a multi-point temperature acquisition device for the spindle of a CNC machine tool to solve the problems of few probes and small storage capacity in the background art.

In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-point temperature acquisition device for the spindle of a CNC machine tool, including a device body, a temperature measuring probe, a signal processing circuit, an analog-to-digital conversion chip, and a main board circuit. The device body is provided with a main board circuit, a data processing mechanism, a data storage mechanism and a data output mechanism, and it is characterized in that: the data storage mechanism includes a plurality of data storage chips, and the device body is also provided with a collection mechanism, and the collection mechanism includes several Temperature probe.

Preferably, the acquisition mechanism includes a plurality of temperature measuring probes, the array of the plurality of temperature measuring probes is arranged on the outer side of the device body, and the plurality of temperature measuring probes are electrically connected to the data processing mechanism through wires.

Preferably, the data processing mechanism includes several signal processing circuits, and the arrays of the several signal processing circuits are arranged inside the device body, and the data processing mechanism also includes several analog-to-digital conversion chips arrayed inside the device body, and the several arrays are arranged inside the device body. The analog-to-digital conversion chip is electrically connected to several signal processing circuits through wires.

Preferably, the data processing mechanism further includes a single-chip microcomputer electrically connected and fixed on the top of the mainboard circuit, and the single-chip microcomputer is electrically connected to the signal processing circuit and the analog-to-digital conversion chip through wires.

Preferably, the data storage mechanism includes several data storage chips electrically connected and fixed on the top of the motherboard circuit, and the several data storage chips are electrically connected to the single-chip electromechanical device through wires.

Preferably, the data output mechanism includes a liquid crystal display that is electrically connected and fixed on the mainboard circuit, and the liquid crystal display is electrically connected with the single chip through the mainboard circuit, and the data output mechanism also includes a liquid crystal display that is electrically connected and fixed on the mainboard circuit. The keyboard on the mainboard circuit has several buttons embedded on the top of the keyboard, and the keyboard is electrically connected to the single-chip electromechanical device through the mainboard circuit.

Compared with the prior art, the beneficial effects that the utility model can achieve are: the utility model provides a device designed for collecting the temperature of the spindle of a CNC machine tool, and the device can realize multi-point temperature monitoring by setting multiple temperature measuring probes. Measured, a large amount of data can be stored by setting multiple memory chips. Not only is the measurement accurate, the measured value is stable and the cost is low, it can meet the measurement requirements of multi-point temperature.

Description of drawings

Fig. 1 is the overall structure diagram of the utility model;

Fig. 2 is the circuit principle diagram of 51 single-chip microcomputers of the present utility model;

Fig. 3 is a schematic diagram of the utility model signal processing circuit;

Fig. 4 is the schematic diagram of the button circuit of the utility model;

Fig. 5 is a schematic diagram of a liquid crystal display of the present invention;

Fig. 6 is a schematic diagram of the analog-to-digital conversion chip of the present invention;

Fig. 7 is a schematic diagram of the utility model data storage chip;

Among them: 1. Device body; 2. Main board circuit; 3. Acquisition mechanism; 4. Temperature measuring probe; 5. Data processing mechanism; 6. Signal processing circuit; 7. Analog-to-digital conversion chip; 8. Single-chip microcomputer; 9. Data storage mechanism; 10. data storage chip; 11. data output mechanism; 12. keyboard; 13. button; 14. liquid crystal display.

detailed description

In order to make the technical means, creative features, goals and effects of the utility model realized easy to understand, the utility model will be further elaborated below in conjunction with specific examples, but the following examples are only preferred embodiments of the utility model, not all . Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present utility model. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.

Example:

As shown in Figures 1-7, the utility model provides a multi-point temperature acquisition device for the spindle of a CNC machine tool, including a device body 1, a temperature measuring probe 4, a signal processing circuit 6, an analog-to-digital conversion chip 7, and a main board circuit 2 , the device body 1 is provided with a motherboard circuit 2, a data processing mechanism 5, a data storage mechanism 9 and a data output mechanism 11, and it is characterized in that: the data storage mechanism 9 includes a plurality of data storage chips 10, and the device body 1 is also A collection mechanism 3 is provided, and the collection mechanism 3 includes several temperature measuring probes 4 .

In this embodiment, specifically, the acquisition mechanism 3 includes a plurality of temperature measuring probes 4, and the array of the plurality of temperature measuring probes 4 is arranged on the outer side of the device body 1, and the plurality of temperature measuring probes 4 communicate with the data processing mechanism through wires. 5 electrical connection, in order to realize the multi-point temperature measurement of the CNC machine tool spindle, the device contains 16 temperature measuring probes 4, the temperature measuring probe 4 is PT100, its own resistance value will change with the change of temperature, thus realizing Conversion of temperature signal to electrical signal.

In this embodiment, specifically, the data processing mechanism 5 includes a plurality of signal processing circuits 6 arranged in arrays inside the device body 1, and the data processing mechanism 5 also includes several arrays arranged in the device body 1 internal analog-to-digital conversion chip 7, the plurality of analog-to-digital conversion chips 7 are electrically connected to a plurality of signal processing circuits 6 through wires, in order to realize the acquisition of temperature signals, the signal processing circuit 6 is designed, and the signal processing circuit 6 can The resistance change of PT100 is converted into voltage change and output. In order to ensure that the converted voltage signal can be processed by 51 microcontroller 8 and converted into the actual temperature measured by PT100 according to a specific algorithm, it is necessary to convert the analog signal output by signal processing circuit 6 into digital signal, so the analog-to-digital conversion chip 7 is designed to complete the analog-to-digital conversion.

In this embodiment, specifically, the data processing mechanism 5 also includes a single-chip microcomputer 8 electrically connected and fixed on the top of the main board circuit 2, and the single-chip microcomputer 8 is electrically connected with the signal processing circuit 6 and the analog-to-digital conversion chip 7 through wires , the digital signal after analog-to-digital conversion needs to be converted into a corresponding temperature signal by the processor, and the code in the processor needs to be adjusted for the specific value to obtain an accurate temperature value. Therefore, 8 single-chip microcomputers are set, and they are 51 single-chip microcomputers.

In this embodiment, specifically, the data storage mechanism 9 includes several data storage chips 10 that are electrically connected and fixed on the top of the motherboard circuit 2, and the several data storage chips 10 are electrically connected with the single-chip microcomputer 8 through wires, and the data is set. The memory chip 10 is used to realize the storage of temperature data through this part of the circuit, so as to display when performing subsequent calls.

In this embodiment, specifically, the data output mechanism 11 includes a liquid crystal display 14 electrically connected and fixed on the main board circuit 2, and the liquid crystal display 14 is electrically connected with the single-chip microcomputer 8 through the main board circuit 2, and the The data output mechanism 11 also includes a keyboard 12 electrically connected and fixed on the mainboard circuit 2. Several buttons 13 are embedded on the top of the keyboard 12, and the keyboard 12 is electrically connected with the single-chip microcomputer 8 through the mainboard circuit 2. The temperature value obtained by the controller is fed back, and a liquid crystal display 14 is set for displaying, and a keyboard 12 is set for human-computer interaction, and the operator can store and read data through the keyboard 12 .

In this embodiment, specifically, the simulation of the signal processing circuit: in order to verify that the signal processing circuit 6 can convert the change of the resistance value of the PT100 into a voltage change, the simulation of this part of the circuit is performed through Multisim, and this part of the circuit is composed of two parts. One part is a constant current source, which supplies power to PT100 to convert the resistance change of PT100 into the voltage change at both ends of PT100; the other part is an amplifier circuit, which amplifies the voltage change at both ends of PT100, so that Identification of conversion chip 7.

In this embodiment, specifically, the code logic simulation of the temperature acquisition device: in order to verify that the hardware of the device can be implemented. The entire device is simulated by proteus, and the software code is loaded into the 51 single-chip microcomputer, and it can be found that its temperature measurement, storage and display functions can be realized.

Working principle: The temperature is measured by the resistance value of several PT100 temperature measuring probes as the temperature changes. The signal processing circuit can convert the resistance change of the temperature measuring probe into a voltage change, and then the analog-to-digital conversion circuit will convert the analog signal output by the signal processing circuit to Converted into a digital signal, the single-chip microcomputer or processor will convert the digital signal into a temperature signal, and finally display the temperature on the LCD screen, and store the temperature into the data storage chip through the keyboard.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a multiple spot temperature acquisition device for digit control machine tool main shaft, includes device body (1), temperature probe (4), signal processing circuit (6), analog-to-digital conversion chip (7), mainboard circuit (2), device body (1) is equipped with mainboard circuit (2), data processing mechanism (5), data storage mechanism (9) and data output mechanism (11), its characterized in that: the data storage mechanism (9) comprises a plurality of data storage chips (10), the device body (1) is further provided with a collection mechanism (3), and the collection mechanism (3) comprises a plurality of temperature probes (4).

2. The multipoint temperature collecting device for the main shaft of the numerical control machine tool according to claim 1, characterized in that: the acquisition mechanism (3) comprises a plurality of temperature probes (4), the plurality of temperature probes (4) are arranged on one side of the outer portion of the device body (1) in an array mode, and the plurality of temperature probes (4) are electrically connected with the data processing mechanism (5) through wires.

3. The multipoint temperature collection device for the main shaft of the numerical control machine according to claim 1, characterized in that: the data processing mechanism (5) comprises a plurality of signal processing circuits (6), the plurality of signal processing circuits (6) are arranged inside the device body (1) in an array mode, the data processing mechanism (5) further comprises a plurality of analog-to-digital conversion chips (7) arranged inside the device body (1) in an array mode, and the plurality of analog-to-digital conversion chips (7) are electrically connected with the plurality of signal processing circuits (6) through conducting wires.

4. The multipoint temperature collecting device for the main shaft of the numerical control machine tool according to claim 1, characterized in that: the data processing mechanism (5) further comprises a single chip microcomputer (8) which is electrically connected and fixed to the top of the main board circuit (2), and the single chip microcomputer (8) is electrically connected with the signal processing circuit (6) and the analog-to-digital conversion chip (7) through a conducting wire.

5. The multipoint temperature collection device for the main shaft of the numerical control machine according to claim 1, characterized in that: the data storage mechanism (9) comprises a plurality of data storage chips (10) which are electrically connected and fixed at the top of the mainboard circuit (2), and the data storage chips (10) are electrically connected with the single chip microcomputer (8) through conducting wires.

6. The multipoint temperature collection device for the main shaft of the numerical control machine according to claim 1, characterized in that: data output mechanism (11) include electric connection and fix liquid crystal display (14) on mainboard circuit (2), liquid crystal display (14) are through mainboard circuit (2) and singlechip (8) electric connection, data output mechanism (11) still include electric connection and fix keyboard (12) on mainboard circuit (2), a plurality of buttons (13) have been inlayed at keyboard (12) top, keyboard (12) are through mainboard circuit (2) and singlechip (8) electric connection.

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