Intelligent manufacturing device for transformer thermometer dial

Abstract

The utility model discloses an intelligent manufacturing device for a transformer thermometer dial, which comprises a constant-temperature oil tank, a temperature measuring component, one or more angle sensing devices, an upper computer and a laser engraving machine, and the angle sensing devices comprise a rotating shaft and an angle sensor which are integrally mounted. A temperature sensing element of the temperature measuring assembly is immersed in the constant-temperature oil groove and connected with a rotating shaft of the angle sensing device, the angle sensor is connected with the upper computer through an angle signal transmission cable, the constant-temperature oil groove is connected with the upper computer through a constant-temperature oil groove control cable, and the upper computer is connected with the laser engraving machine through a signal control cable. The device is convenient to use, high in efficiency, safe and reliable, and has the advantages of easiness in operation, stable process and good product quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer thermometer processing equipment technical field, concretely is a kind of intelligent manufacturing device of transformer thermometer dial. BACKGROUND

[0002] Transformer thermometer dial manufacturing method directly influences thermometer accuracy and production efficiency.Currently, the main manufacturing method of transformer thermometer dial has the following two kinds:

[0003] 1, batch production different corner dial: batch production multiple different corner dials, and can be selected according to the size of thermometer corner. This dial batch production method is simple, high in production efficiency, low in cost, but low in thermometer accuracy.

[0004] 2, segmented linearization custom dial: install angle dial on thermometer, and each interval temperature point corresponds a temperature value. Figure 1 As shown in the figure, multiple constant-temperature oil tanks are set at-20 DEG C, 20 DEG C, 60 DEG C, 100 DEG C and 140 DEG C, and the angle values corresponding to the above-mentioned five temperature points are read manually, thereby obtaining four corners α1, α2, α3 and α4, and the scales in four corners are linearly distributed. Segmented linearization custom dial process is complex, and reading angle is influenced by human factors, so production efficiency is low, cost is high, and thermometer accuracy is high. INVENTION CONTENTS

[0005] To solve the deficiency of prior art, the utility model provides a kind of intelligent manufacturing device of transformer thermometer dial, by structural improvement and application of automatic software, with the advantages of convenient to use, efficient and safe, process reliable, product quality good.

[0006] The utility model aims to realize by the following technical scheme:

[0007] A kind of intelligent manufacturing device of transformer thermometer dial, including constant-temperature oil tank, temperature measuring component, angle sensing device, host computer and laser engraving machine, the angle sensing device includes integrally installed shaft and angle sensor, the temperature sensing element of the temperature measuring component is immersed in constant-temperature oil tank and is connected with the shaft of angle sensing device, the angle sensor is connected with host computer by angle signal transmission cable, the temperature measuring component senses constant-temperature oil tank temperature and drives shaft rotation, the shaft rotates output angle data by driving angle sensor, the constant-temperature oil tank is connected with host computer by constant-temperature oil tank control cable, the host computer is connected with laser engraving machine by signal control cable, the host computer generates dial image and scale position after angle and temperature data are collected, and the accurate processing of dial is realized by laser engraving machine.

[0008] Preferably, the number of angle sensing devices is one or more, and the number of temperature measuring assemblies is the same as that of the angle sensing devices.

[0009] Preferably, the constant temperature oil tank comprises a temperature sensor, a working oil cavity, a stirring device, a heating device and a cooling device, the working oil cavity is filled with a heat conducting medium, the temperature sensor, the stirring device, the heating device and the cooling device are all installed in the working oil cavity, the temperature sensor transmits the temperature of the heat conducting medium in the constant temperature oil tank to the upper computer in real time through a signal transmission line, and the heating device receives the working instruction of the upper computer and keeps the temperature of the heat conducting medium in the working oil cavity stable together with the stirring device and the cooling device.

[0010] Preferably, the heat conducting medium is silicon oil, the stirring device is a structure of a motor driven stirring assembly, and the cooling device adopts a cooling fan.

[0011] Preferably, the upper computer comprises a central processing unit and an input and display device, the central processing unit is used for collecting and outputting various control signals related to the constant temperature oil tank and the angle sensing device, simultaneously converting analog signals into digital signals, and communicating with the touch computer to send detection information and receive detection results; and the input and display device is used for receiving basic information of the constant temperature oil tank, the angle sensor, the laser engraving machine and the scale disc, identifying and displaying angle data of the angle sensor and temperature data of the constant temperature oil tank.

[0012] Preferably, the angle sensor comprises a rotor and a stator, the rotor is fixed on a rotating shaft and rotates synchronously with the rotating shaft, and the stator is fixed on the upper part of the rotor.

[0013] Preferably, the rotor is detachably fixed on the rotating shaft by screws.

[0014] Preferably, the angle sensor adopts a magnetic sensitive angle sensor or a grating angle sensor.

[0015] Preferably, the temperature measuring assembly comprises a temperature sensing element, a capillary tube and an elastic element, the temperature sensing element is immersed in the heat conducting medium in the constant temperature oil tank, the temperature sensing element is connected with the elastic element through the capillary tube, a closed system composed of the temperature sensing element, the capillary tube and the elastic element is filled with a temperature sensing medium, the elastic element is fixedly connected with the rotating shaft, when the temperature sensing medium in the temperature sensing element senses temperature change to cause pressure or volume change of working substance in the temperature sensing element, the change amount is transmitted through the capillary tube to cause pressure or volume change of the temperature sensing medium in the elastic element, so that the elastic element deforms to generate a rotating force and drive the rotating shaft to rotate, and at the same time, the rotating shaft drives the rotor in the angle sensor to rotate to output angle data.

[0016] Preferably, the elastic element adopts a multi-turn Bourdon tube, and the rotating shaft is fixed at the center position of the elastic element.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1, the utility model discloses can accurate reading to the angle value of the pointer thermometer, can avoid the influence of artificial factor, through disposable simultaneously reading the angle value of multiple pointer thermometer, production efficiency is improved greatly greatly, and all angle data can store, can export, make things convenient for traceability, convenient to use, safe and reliable;

[0019] 2, the utility model automatic control constant temperature oil groove temperature rise, liberate manpower, realize the accurate control of the test temperature point, stable time, deviation range of constant temperature oil groove in the host computer collaborative control software, improve the precision and reliability of temperature data;

[0020] 3, the utility model is based on the angle data and temperature data of acquisition, combines the shape, size of the dial to be processed with the processing size, precision of laser engraving machine, the utility model can accurately generate linear or nonlinear dial image, improve the precision and efficiency of laser engraving machine to make different types of dials;

[0021] 4, the utility model realizes the customization processing of high-precision dial, and the indication value of the pointer thermometer made is more accurate, and human error is effectively avoided;

[0022] 5, the utility model discloses reasonable in design, convenient to use, high working efficiency, safe and reliable, and the processing method provided also has the advantages of easy operation, stable process, good product quality, and provides convenience for industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the dial structure schematic diagram of the prior art that is customized by segment linearization through manual reading four corners (alpha 1, alpha 2, alpha 3 and alpha 4);

[0024] Figure 2 It is the structure schematic diagram of the intelligent manufacturing device of the transformer thermometer dial of the utility model;

[0025] Figure 3 It is the installation structure diagram of the angle sensing device and temperature measuring assembly in the utility model;

[0026] In the drawing: 1-constant temperature oil groove, 2-pointer thermometer assembly, 2-1-temperature sensing element, 2-2-capillary, 2-3-elastic element, 2-4-rotating shaft, 3-angle sensor, 3-1-rotor, 3-2-stator, 4-angle signal transmission cable, 5-host computer, 6-signal control cable, 7-laser engraving machine, 8-dial, 9-constant temperature oil groove control cable. DETAILED DESCRIPTION

[0027] The utility model is further described below in combination with the drawings and examples:

[0028] As Figure 2 And Figure 3 The utility model provides a kind of intelligent production device of transformer thermometer dial, including constant-temperature oil groove 1, temperature measuring component, angle sensing device, host computer 5 and laser engraving machine 7, the angle sensing device quantity is one and above, angle sensing device includes the shaft 2-4 and angle sensor 3 integrally installed in pointer thermometer component 2, the temperature sensing element of temperature measuring component is immersed in constant-temperature oil groove 1 and is connected with the shaft 2-4 of angle sensing device, the angle sensor 3 is connected with host computer 5 by angle signal transmission cable 4, the temperature sensing element of temperature measuring component drives elastic element 2-3 rotation and drives the rotation of shaft 2-4 after inducting constant-temperature oil groove 1 temperature, the shaft 2-4 rotates output angle data by driving angle sensor 3, constant-temperature oil groove 1 is connected with host computer 5 by constant-temperature oil groove 1 control cable 9, host computer 5 is connected with laser engraving machine 7 by signal control cable 6, host computer 5 acquires the temperature data of constant-temperature oil groove 1 and the angle data of angle sensor 3, and combines dial 8 shape, size generates dial image and scale position, then by laser engraving machine 7 realizes high-precision processing to dial 8.

[0029] Further, the pointer thermometer component 2 includes a housing, a scale panel, and a pointer. The scale panel is arranged in the housing, and the pointer and the shaft 2-4 are installed in the middle of the scale panel. The angle sensor 3 is installed on the shaft 2-4. It can be understood that the shaft 2-4 and the angle sensor 3 of the angle sensing device can also not be installed in the pointer thermometer component 2, but can be applied separately based on other stable installations.

[0030] Further, the constant-temperature oil groove 1 includes a temperature sensor, a working oil cavity, a stirring device, a heating device, and a cooling device. The working oil cavity is filled with a heat-conducting medium. The temperature sensor, the stirring device, the heating device, and the cooling device are all installed in the working oil cavity. The temperature sensor is a high-reliability and high-precision temperature sensor that can transmit the temperature of the heat-conducting medium (as a standard temperature) of the constant-temperature oil groove 1 to the host computer 5 in real time through a signal transmission line. The heating device receives the working instructions of the host computer 5 and, together with the stirring device and the cooling device, maintains the temperature stability of the heat-conducting medium in the working oil cavity. In specific implementations, the heat-conducting medium is usually silicone oil, the stirring device is an electric motor-driven stirring component structure, and the cooling device can be a fan or other refrigeration device.

[0031] Further, the host computer 5 comprises a central processing unit, an input and display device, the central processing unit is used for collecting and outputting various control signals related to the constant temperature oil tank 1 and the angle sensor, and simultaneously converting analog signals into digital signals, and communicating with the touch computer, sending detection information and receiving detection results; the input and display device is used for receiving basic information of the constant temperature oil tank 1, the angle sensor 3, the laser engraving machine 7 and the scale disc 8, identifying and displaying angle data of the angle sensor 3 and temperature data of the constant temperature oil tank 1.

[0032] Further, the angle sensor 3 comprises a rotor 3-1 and a stator 3-2, the rotor 3-1 is fixed on the rotating shaft 2-4 through a screw and rotates synchronously with the rotating shaft 2-4, and the stator 3-2 is fixed on the upper portion of the rotor 3-1; the angle sensor 3 adopts a magnetic sensitive angle sensor, a grating angle sensor or other high-precision angle sensors.

[0033] Further, the temperature measuring assembly comprises a temperature sensing element 2-1, a capillary tube 2-2 and an elastic element 2-3, the temperature sensing element 2-1 adopts a temperature bag and is immersed in a heat-conducting medium in the constant temperature oil tank 1, the temperature sensing element 2-1 is connected with the elastic element 2-3 through the capillary tube 2-2, a closed system formed by the temperature sensing element 2-1, the capillary tube 2-2 and the elastic element 2-3 is filled with a temperature sensing medium, and the elastic element is fixedly connected with the rotating shaft; specifically, the elastic element 2-3 can adopt a multi-turn Bourdon tube, the rotating shaft 2-4 is rigidly fixed at the center position of the elastic element 2-3, when the temperature sensing medium in the temperature sensing element 2-1 senses temperature change and causes pressure or volume change of working substances in the temperature sensing element 2-1, the change amount is transmitted through the capillary tube 2-2 and causes pressure or volume change of the temperature sensing medium in the elastic element 2-3, so that the elastic element 2-3 generates a rotating force and drives the rotating shaft 2-4 to rotate, and simultaneously the rotating shaft 2-4 drives the rotor 3-1 in the angle sensor 3 to rotate and output angle data.

[0034] Meanwhile, the utility model also provides a kind of processing method of transformer thermometer scale disc, and the above-mentioned intelligent manufacturing device is used, and specific steps are as follows:

[0035] S1, start host computer collaborative control software:

[0036] Host computer 5 is configured and started in the host computer collaborative control software, and the control software can realize constant temperature oil tank 1 temperature control, angle sensor angle information acquisition calculation, scale disc image generation and laser engraving machine 7 positioning and processing function by inputting the basic information of constant temperature oil tank 1, angle sensor 3, laser engraving machine 7 and scale disc 8;

[0037] S2, run intelligent manufacturing device:

[0038] The central processor receives the flow starting information of the host computer cooperative control software, and then sends control signals to the constant temperature oil tank 1, the angle sensor 3 and the laser engraving machine 7 according to the processing flow, and receives the related information of the process execution, including:

[0039] (1) The PID control module of the central processor sends control information to the heating module or the refrigeration module of the constant temperature oil tank 1. The heating module or the refrigeration module starts and heats or cools the constant temperature oil tank 1. At the same time, the stirring device is started to realize the uniform flow of the heat conducting medium. The real-time temperature data of the constant temperature oil tank 1 is collected through the temperature sensor. When the temperature of the constant temperature oil tank 1 reaches the test temperature point T℃, the heating or cooling is stopped. In order to keep the test temperature point T℃ within the set deviation range, the central processor also adjusts and controls the heating module and the refrigeration module according to the temperature value collected by the temperature sensor, so that the test temperature point T℃ (representing the temperature of the heat conducting medium of the constant temperature oil tank 1) remains stable within a certain time;

[0040] (2) The temperature sensing medium in the temperature sensing element 2-1 of the temperature measuring assembly senses the temperature change and causes the working substance in the temperature sensing element 2-1 to change in pressure or volume. The change causes the elastic element 2-3 to deform and drive the angle sensor 3 to output an angle sensing signal through the shaft 2-4. The central processor receives the angle data of multiple angle sensors 3 in real time.

[0041] S3, generate a scale dial image:

[0042] The central processor collects, stores and filters the temperature data of the constant temperature oil tank 1 that meets the conditions, and the angle data given by the angle sensor 3, and then generates a scale dial image with scale for cooperation with the laser engraving machine 7 according to the shape and size information of the scale dial 8 to be processed and the processing size and precision of the laser engraving machine 7.

[0043] S4, make a high-precision scale dial 8 by a laser engraving machine:

[0044] Put the scale dial 8 in the processing position. The laser engraving machine 7 accurately positions the cutter and the scale dial 8 according to the scale dial image with scale generated by the central processor and engraves until the production of the transformer thermometer scale dial 8 is completed.

[0045] Further, in step S1, the host computer cooperative control software is a control program developed according to the processing requirements and capable of generating a scale dial image with scale. The basic information of the scale dial 8, the constant temperature oil tank 1 and the angle sensor 3 includes: the working temperature range of the constant temperature oil tank 1, the test temperature point T and the stable time t, the heating power and time, the stirring speed, the shape and size of the shaft 2-4, the type and specification of the angle sensor 3, the shape and size of the scale dial 8 to be processed, the processing size and precision of the laser engraving machine 7, etc.

[0046] Further, in the step S1, the lower limit working temperature of the constant temperature oil tank 1 is lower than the lower limit of the temperature measurement range, the upper limit working temperature is higher than the upper limit of the temperature measurement range, the host computer cooperative control software can set the number and value of the temperature point T in the working temperature range of the constant temperature oil tank 1, and set the stable time t value corresponding to the temperature point T.

[0047] Further, in the step S2, the host computer cooperative control software controls the constant temperature oil tank 1 to automatically rise and fall in the working temperature range and reads the data of the angle sensor under stable conditions, including rising or falling to the next temperature point after testing the temperature point T℃ for t minutes, and automatically reading the angle data output by the angle sensor 3 through digital or analog signals in a period of time after testing one of the set temperature points T℃ and the deviation does not exceed the set interval (the deviation range can be set in step S1) for t minutes, and storing the collected angle data in the computer for easy query, traceability and export.

[0048] Further, in the step S3, the scale disc image generation method comprises the following steps: (1) according to the measured angle value, the rotation angle of α1~α n is obtained, the minimum division value corresponding angle value is obtained by linear interpolation method, and a linear scale disc image is automatically generated; 2) the minimum division value corresponding angle value is obtained by adopting the equal difference method, and a nonlinear scale disc image is automatically generated; (3) the minimum division value corresponding angle value is obtained by adopting the equal ratio method, and a nonlinear scale disc image is automatically generated.

[0049] In summary, the utility model first controls the temperature rise and fall of the constant temperature oil tank 1 through the host computer software and heating, refrigeration module, the host computer software reads the angle value corresponding to a certain temperature point, and then automatically controls the constant temperature oil tank 1 to rise to another temperature point, and the host computer software can read the output data of multiple angle sensors 3 simultaneously, and then generates the image of the scale disc 8 according to the temperature and angle data, finally, the laser engraving machine 7 is positioned and processed according to the image, and the high-precision transformer thermometer scale disc 8 product is manufactured.

[0050] It should be noted that the above embodiments are only preferred embodiments of the utility model, and are not used to limit the protection scope of the utility model, and equivalent transformations made on the basis of the above embodiments all belong to the protection scope of the utility model.

Claims

1. An intelligent manufacturing device for a transformer thermometer dial, characterized in that: The constant temperature oil tank, the temperature measuring assembly, the angle sensing device, the upper computer and the laser engraving machine are connected, the temperature measuring assembly is immersed in the constant temperature oil tank and is connected with the rotating shaft of the angle sensing device, the angle sensor is connected with the upper computer through the angle signal transmission cable, the constant temperature oil tank is connected with the upper computer through the constant temperature oil tank control cable, and the upper computer is connected with the laser engraving machine through the signal control cable.

2. The intelligent manufacturing device for transformer temperature meter scale according to claim 1, characterized in that: The number of the angle sensing device is one or more, and the number of the temperature measuring assembly and the angle sensing device is the same.

3. The intelligent manufacturing device for transformer temperature meter scale according to claim 1, characterized in that: The constant temperature oil tank comprises a temperature sensor, a working oil cavity, a stirring device, a heating device and a cooling device, the working oil cavity is filled with a heat conducting medium, the temperature sensor, the stirring device, the heating device and the cooling device are installed in the working oil cavity, the temperature sensor transmits the temperature of the heat conducting medium in the constant temperature oil tank to the upper computer in real time through the signal transmission line, and the heating device receives the working instruction of the upper computer and keeps the temperature of the heat conducting medium in the working oil cavity stable together with the stirring device and the cooling device.

4. The intelligent manufacturing device for transformer temperature meter scale according to claim 3, characterized in that: The heat conducting medium is silicon oil, the stirring device is a structure of a motor driven stirring assembly, and the cooling device adopts a cooling fan.

5. The intelligent manufacturing device for transformer temperature scale disc according to claim 1, characterized in that: The upper computer comprises a central processing unit and an input and display device, the central processing unit is used for collecting and outputting various control signals related to the constant temperature oil tank and the angle sensing device, simultaneously converting analog signals into digital signals, and communicating with the touch computer to send detection information and receive detection results, and the input and display device is used for receiving basic information of the constant temperature oil tank, the angle sensor, the laser engraving machine and the dial, identifying and displaying angle data of the angle sensor and temperature data of the constant temperature oil tank.

6. The intelligent manufacturing device for transformer temperature meter scale according to claim 1, characterized in that: The angle sensor comprises a rotor and a stator, the rotor is fixed on the rotating shaft and rotates synchronously with the rotating shaft, and the stator is fixed on the upper portion of the rotor.

7. The intelligent manufacturing device for transformer temperature scale disc according to claim 6, characterized in that: The rotor is detachably fixed on the rotating shaft through a screw.

8. The intelligent manufacturing device for transformer temperature scale disc according to claim 1, characterized in that: The angle sensor adopts a magnetic sensitive angle sensor or a grating angle sensor.

9. The intelligent manufacturing device for transformer temperature scale disc according to claim 1, characterized in that: The temperature measuring assembly comprises a temperature sensing element, a capillary tube and an elastic element, the temperature sensing element is immersed in the heat conducting medium of the constant temperature oil tank, the temperature sensing element is connected with the elastic element through the capillary tube, a closed system formed by the temperature sensing element, the capillary tube and the elastic element is filled with a temperature sensing medium, and the elastic element is fixedly connected with the rotating shaft, when the pressure or volume of the temperature sensing medium in the elastic element changes, the elastic element generates a rotating force and drives the rotating shaft to rotate.

10. The apparatus of claim 9, wherein: The elastic element adopts a multi-turn Bourdon tube, and the rotating shaft is fixed at the center position of the elastic element.

Images