Thermostat assembly line testing fixture

Abstract

The utility model belongs to the technical field of temperature regulator calibration, specifically is temperature regulator assembly line detection frock of quick calibration, including work table, the top of work table is equipped with calibration mechanism, calibration mechanism all includes processing module, the bottom fixed mounting of processing module is in the top of work table, one end of processing module is connected with calibration module electrically, one end of calibration module is connected with first temperature sensor electrically, one end of calibration module is connected with displacement sensor electrically, one end of calibration module is connected with second temperature sensor electrically, one end of calibration module is connected with control panel electrically, the utility model discloses setting calibration mechanism on the work table, and first temperature sensor and second temperature sensor monitor environment and temperature regulator surface temperature respectively, and combine displacement sensor and capture lift change, and cooperate processing module to reduce detection error, and calibration module can carry out curve generation process, and the time consumption of manual detection is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of thermostat calibration technology, specifically a thermostat assembly line testing fixture that can be quickly calibrated. Background Technology

[0002] As a core temperature control component in the automotive and home appliance industries, the temperature response characteristics of thermostat assemblies before leaving the factory are directly related to the reliability of end products, and temperature calibration is essential. Currently, the industry generally adopts the following two types of testing schemes: manual testing and calibration that relies on operators to use handheld infrared thermometers to measure the temperature of the thermostat at multiple points or to visually judge the displacement of the mechanical structure, or semi-automatic testing and calibration that uses a single temperature sensor + fixed fixture and PLC to control the water bath temperature circulation.

[0003] However, manual testing and calibration requires manual recording, which introduces subjective errors and is inefficient. Semi-automatic testing and calibration has a long cycle and does not take into account thermal conduction errors at the installation location. These shortcomings are not conducive to the current rapid calibration operation of thermostat assemblies. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, manual testing and calibration requires manual recording, which is subject to subjective errors and is inefficient. Semi-automatic testing and calibration has a long cycle and does not take into account the problem of thermal conduction errors at the installation position. This utility model proposes a testing fixture for thermostat assembly lines that can be calibrated quickly.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a thermostat assembly line testing fixture that can be quickly calibrated, including a workbench, and a calibration mechanism is provided at the top of the workbench;

[0006] Each calibration mechanism includes a processing module. The bottom of the processing module is fixedly mounted on the top of the workbench. One end of the processing module is electrically connected to a calibration module. One end of the calibration module is electrically connected to a first temperature sensor. One end of the calibration module is electrically connected to a displacement sensor. One end of the calibration module is electrically connected to a second temperature sensor. One end of the calibration module is electrically connected to a control panel. One end of the control panel is electrically connected to the processing module.

[0007] Preferably, a fixing block is fixedly installed at the bottom of the processing module, and a screw is slidably connected to the inner cavity of the fixing block.

[0008] Preferably, the screw has a connecting block threaded onto its surface, and a handle is fixedly connected to the top of the screw.

[0009] Preferably, the bottom end of the connecting block is fixedly connected to a mounting base, and the bottom end of the mounting base is detachably connected to the thermostat assembly.

[0010] Preferably, an electric slider is fixedly connected to one side of the connecting block, one end of the electric slider is electrically connected to the control panel, and the bottom end of the electric slider is fixedly installed on the workbench.

[0011] Preferably, the top of the workbench is provided with a constant temperature oil tank, a laminar flow stabilizer is fixedly installed in the inner cavity of the constant temperature oil tank, a connecting plate is fixedly connected to the top of the constant temperature oil tank, and a circular hole matching the constant temperature oil tank is provided in the inner cavity of the connecting plate.

[0012] Preferably, a pipe is fixedly inserted through the inner cavity of the connecting plate, one end of the pipe is fixedly connected to a pump, and the bottom end of the pump is fixedly connected to an oil tank.

[0013] The advantages of this utility model are:

[0014] This invention achieves highly efficient automated detection and calibration by setting a calibration mechanism on the workbench: the first and second temperature sensors monitor the ambient and thermostat surface temperatures respectively, and the displacement sensor captures the rise changes in real time. Under the control of the processing module, the temperature measurement error is reduced. The calibration module can be switched, and the built-in data acquisition program performs an automatic curve generation process, which reduces the time consumption compared to manual detection and recording. It solves the problems of manual detection and calibration, which requires manual recording and involves subjective errors, is inefficient, has a long semi-automatic detection and calibration cycle, and does not consider the problem of thermal conduction errors at the installation position. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 This is a schematic diagram of the calibration mechanism structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the back of the present invention;

[0019] Figure 4 This is a schematic diagram of the electric slider lifting structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting base arrangement structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Calibration mechanism; 201. Processing module; 202. Calibration module; 203. First temperature sensor; 204. Displacement sensor; 205. Second temperature sensor; 206. Control panel; 3. Fixing block; 4. Screw; 5. Connecting block; 6. Handle; 7. Mounting base; 8. Thermostat assembly; 9. Electric slider; 10. Thermostatic oil bath; 11. Laminar flow stabilizer; 12. Connecting plate; 13. Pipeline; 14. Pump; 15. Oil tank. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail;

[0024] This application discloses a rapid-calibration testing fixture for a thermostat assembly line. (See also...) Figure 1 and Figure 2 A rapid calibrated thermostat assembly line testing fixture, including a workbench 1, with a calibration mechanism 2 at the top of the workbench 1;

[0025] The first temperature sensor 203 and the second temperature sensor 205 monitor the ambient temperature and the inner surface temperature of the thermostat, respectively. The displacement sensor 204 captures the lift change of the thermostat assembly in real time. The processing module 201 performs regulation. The calibration module 202, in conjunction with the built-in data acquisition system and curve generation process, can reduce manual recording errors and reduce the time spent on detection and calibration. In this embodiment, the first temperature sensor 203 is a PT100 platinum resistance thermometer, the second temperature sensor 205 is an IRTP-1000LS, the processing module 201 is an HC60-EXT, the calibration module 202 is a CN469XX-5A, and the control panel 206 is a DCP760.

[0026] Each calibration mechanism 2 includes a processing module 201. The bottom of the processing module 201 is fixedly mounted on the top of the workbench 1. One end of the processing module 201 is electrically connected to a calibration module 202. One end of the calibration module 202 is electrically connected to a first temperature sensor 203, a displacement sensor 204, and a second temperature sensor 205. One end of the calibration module 202 is electrically connected to a control panel 206, and one end of the control panel 206 is electrically connected to the processing module 201.

[0027] Reference Figure 1 and Figure 2 and Figure 3 A fixing block 3 is fixedly mounted on the surface of the displacement sensor 204, and a screw 4 is rotatably connected to the top of the fixing block 3; by setting the fixing block 3 to connect the displacement sensor 204, the height can be adjusted in conjunction with the screw 4.

[0028] Reference Figure 4 and Figure 5 The screw 4 has a threaded connection to a connecting block 5, and a handle 6 is fixedly connected to the top of the screw 4. The connecting block 5 is used to provide an installation base, and the handle 6 is located on the screw 4 so that it can be rotated and adjusted without the aid of tools.

[0029] Reference Figure 3 , Figure 4 and Figure 5 The bottom end of the connecting block 5 is fixedly connected to the mounting base 7, and the bottom end of the mounting base 7 is detachably connected to the thermostat assembly 8. The mounting base 7 provides a foundation for the installation of the thermostat assembly 8. The mounting base 7 should be made of heat-insulating material to reduce the impact of temperature deformation on the accuracy of the displacement sensor 204 in detecting the thermostat assembly 8 for different temperature displacements.

[0030] Reference Figure 1 An electric slider 9 is fixedly connected to one side of the connecting block 5. One end of the electric slider 9 is electrically connected to the control panel 206. The bottom end of the electric slider 9 is fixedly installed on the workbench 1. The electric slider 9 has good sliding position adjustment and a locking function. Its lifting and lowering can be adjusted through the control panel 206.

[0031] Reference Figure 3 and Figure 4 The top of the workbench 1 is provided with a constant temperature oil tank 10. A laminar flow stabilizer 11 is fixedly installed in the inner cavity of the constant temperature oil tank 10. A connecting plate 12 is fixedly connected to the top of the constant temperature oil tank 10. The inner cavity of the connecting plate 12 is provided with a round hole that matches the constant temperature oil tank 10. The laminar flow stabilizer 11 is used to make the water flow distribution in the constant temperature oil tank 10 more uniform and the temperature more uniform, which is conducive to improving the representativeness of the temperature data detected by the first temperature sensor 203. The connecting plate 12 is used to provide the installation foundation. The constant temperature oil tank 10 is a known technology and will not be described in detail here.

[0032] Reference Figure 4 A pipe 13 is fixedly passed through the inner cavity of the connecting plate 12. One end of the pipe 13 is fixedly connected to a pump 14, and the bottom end of the pump 14 is fixedly connected to an oil tank 15. The pump 14 is used to pump out the silicone oil in the oil tank 15 and transport it into the constant temperature oil bath 10 through the pipe 13. The oil tank 15 is a known technology and will not be described in detail here.

[0033] Working principle: The constant temperature oil bath 10 provides a stable and uniform temperature environment (the oil has a large specific heat capacity and good temperature uniformity). The calibration module 202 has a built-in first temperature sensor 203 to monitor the ambient temperature, and a second temperature sensor 205 directly contacts the surface of the thermostat assembly 8 to check the temperature. Combined with the displacement sensor 204, the displacement of the thermostat assembly is captured in real time by the rise of the thermostat assembly due to the temperature-sensing wax block. The processing module 201 compares the preset parameters and corrects them through the calibration module 202, forming a synchronous closed-loop monitoring of temperature and mechanical action. The processing module 201 controls the temperature rise and fall of the constant temperature oil bath 10 according to the preset program, dynamically adjusts the calibration parameters, and outputs commands through the control panel 206 to realize the automatic calibration of the opening or closing temperature point of the thermostat assembly 8. At the same time, the system uses a standard temperature sensor such as a PT100 platinum resistance thermometer as a reference, compares the reading deviation of the second temperature sensor 205, calculates the calibration coefficient, and automatically adjusts it.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A thermistor assembly wire detection fixture that can be quickly calibrated, characterized in that, Includes a workbench (1), and a calibration mechanism (2) is provided at the top of the workbench (1); Each calibration mechanism (2) includes a processing module (201). The bottom end of the processing module (201) is fixedly installed on the top of the workbench (1). One end of the processing module (201) is electrically connected to a calibration module (202). One end of the calibration module (202) is electrically connected to a first temperature sensor (203). One end of the calibration module (202) is electrically connected to a displacement sensor (204). One end of the calibration module (202) is electrically connected to a second temperature sensor (205). One end of the calibration module (202) is electrically connected to a control panel (206). One end of the control panel (206) is electrically connected to the processing module (201).

2. The rapid-calibration thermostat assembly line testing fixture according to claim 1, characterized in that: A fixing block (3) is fixedly mounted on the surface of the displacement sensor (204), and a screw (4) is rotatably connected to the top of the fixing block (3).

3. The rapid-calibration thermostat assembly line testing fixture according to claim 2, characterized in that: The screw (4) has a connecting block (5) threadedly connected to its surface, and a handle (6) is fixedly connected to the top end of the screw (4).

4. The rapid calibrable thermostat assembly line testing fixture according to claim 3, characterized in that: The bottom end of the connecting block (5) is fixedly connected to the mounting base (7), and the bottom end of the mounting base (7) is detachably connected to the thermostat assembly (8).

5. The rapid-calibration thermostat assembly line testing fixture according to claim 3, characterized in that: An electric slider (9) is fixedly connected to one side of the connecting block (5), one end of the electric slider (9) is electrically connected to the control panel (206), and the bottom end of the electric slider (9) is fixedly installed on the workbench (1).

6. The rapid-calibration thermostat assembly line testing fixture according to claim 5, characterized in that: The top of the workbench (1) is provided with a constant temperature oil tank (10), and a laminar flow stabilizer (11) is fixedly installed in the inner cavity of the constant temperature oil tank (10). A connecting plate (12) is fixedly connected to the top of the constant temperature oil tank (10), and a round hole matching the constant temperature oil tank (10) is provided in the inner cavity of the connecting plate (12).

7. The rapid-calibration thermostat assembly line testing fixture according to claim 6, characterized in that: The inner cavity of the connecting plate (12) is fixedly connected to a pipe (13), one end of the pipe (13) is fixedly connected to a pump (14), and the bottom end of the pump (14) is fixedly connected to an oil tank (15).

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