Testing equipment for high-temperature contact type sensor

Abstract

The invention belongs to the field of testing equipment, and relates to testing equipment of a high-temperature contact sensor, which comprises a tool unit used for installing a sensor to be tested; the tool unit comprises a tool bottom plate, a plurality of tool clamps matched with sensors to be tested are arranged on the tool bottom plate at intervals, and the tool clamps are detachably connected to the tool bottom plate; the heating surface of the heating unit is in contact with or far away from the contact surface of the to-be-detected sensor mounted on the tool unit; an electric cabinet; and the electric cabinet is electrically connected with the to-be-tested sensor installed on the tool unit through the automatic test unit. After the structure is adopted, the beneficial effects are that through the linkage design of the tool unit, the heating unit and the automatic test unit, the whole test equipment is convenient to operate and high in practicability.

Description

Technical Field

[0001] The invention belongs to the field of testing technology, and in particular relates to testing equipment for high-temperature contact sensors. Background Art

[0002] As an indispensable temperature monitoring component in the field of industry and scientific research, high temperature contact sensors are of various types and have their own characteristics. They mainly include the following types: Thermocouple: It cleverly uses the thermoelectric potential difference generated by two different metals when heated to accurately measure temperature. Thermocouples are widely used for temperature monitoring in various high-temperature environments due to their simple structure, wide measurement range, and high temperature resistance.

[0003] Thermistor: The working principle of this type of sensor is based on the property that the resistance value of the material changes with temperature. As the temperature rises or falls, the resistance value of the thermistor will decrease or increase accordingly, thus achieving accurate temperature measurement. Thermistors play an important role in temperature control systems due to their high sensitivity and fast response speed.

[0004] Resistance Temperature Detector (RTD): RTD measures temperature based on the physical law that the resistance of a metal conductor changes with temperature. Compared with thermocouples, RTDs usually have higher accuracy and stability, and are particularly suitable for applications that require high-precision measurements.

[0005] Integrated temperature sensor: The integrated temperature sensor integrates temperature sensing elements, signal processing circuits, compensation circuits, etc. on a tiny chip.

[0006] At present, there are still deficiencies in the testing methods for high-temperature contact sensors, and there is a lack of dedicated testing equipment. The traditional manual testing method, that is, collecting test data by manually contacting the high-temperature contact sensor with the high-temperature surface, is not only inefficient, but also easily affected by human factors, such as improper operation, reading errors, etc., which leads to unstable and inaccurate test data. In addition, manual testing is also difficult to achieve precise control and monitoring of the high-temperature environment, further limiting the reliability and repeatability of the test results. Therefore, it is necessary to make improvements. Summary of the invention

[0007] In order to solve the above problems in the prior art, the present invention provides a test device for high-temperature contact sensors, which has automated testing and good testing effect.

[0008] To achieve the above object, the present invention adopts the following technical solutions: As one aspect of the present invention, a test device for a high-temperature contact sensor is provided, which comprises: a tooling unit for mounting a sensor to be tested; the tooling unit comprises a tooling base plate, a plurality of tooling fixtures adapted to the sensor to be tested are arranged at intervals on the tooling base plate, and the tooling fixtures are detachably connected to the tooling base plate; A heating unit, wherein a heating surface of the heating unit is in contact with or away from a contact surface of a sensor to be tested mounted on the tooling unit; Electric control box; The automatic test unit, the electric control box is electrically connected to the sensor to be tested installed on the tooling unit through the automatic test unit.

[0009] The above scheme standardizes the test of the sensor to be tested and achieves good test effect.

[0010] Furthermore, it also includes a first pressing unit, which presses the sensor to be tested on the tooling unit.

[0011] The above solution makes it difficult for the sensor to be tested to deviate during the test process.

[0012] Furthermore, a first mounting groove is provided on the tooling base plate, and the tooling fixture is arranged in the first mounting groove; a first clearance hole is provided on the first mounting groove; the tooling fixture includes a fixture body, a first connecting groove adapted to a connecting base of the sensor to be tested is provided on the fixture body, a second clearance hole is provided on the first connecting groove, a contact surface of the sensor to be tested passes through the second clearance hole, and a center of the second clearance hole coincides with a center of the first clearance hole; a first side slope is formed around the groove edge of the first connecting groove.

[0013] The above solution facilitates the installation of the sensor to be tested.

[0014] Furthermore, the tooling unit also includes a calibration sample unit, which is connected to the tooling base plate; the calibration sample unit includes a calibration sample fixture and a second clamping unit, and the structure of the calibration sample fixture is the same as that of the tooling fixture; the second clamping unit is connected to the tooling base plate; a second mounting groove is opened on the tooling base plate, and the second clamping unit is connected to the second mounting groove, and the second clamping unit clamps and limits the calibration sample on the calibration sample fixture.

[0015] The above scheme ensures the pass rate of the sensors to be tested.

[0016] Furthermore, the second clamping unit includes a second clamping base, a second clamping support rod and a second pressure strip, the second clamping base is connected to the second mounting groove; one end of the second clamping support rod is rotatably connected to the second clamping base through a pin shaft; one end of the second pressure strip is rotatably connected to the second clamping base through a pin shaft; the second clamping support rod and the second pressure strip are arranged at intervals; the middle part of the second clamping support rod and the middle part of the second pressure strip are rotatably connected through a second connecting piece, one end of the second connecting piece and the second clamping support rod are rotatably connected through a pin shaft, and the other end of the second connecting piece and the second pressure strip are rotatably connected through a pin shaft The second clamping mechanism is detachably connected to the other end of the second clamping support rod, and the other end of the second clamping support rod forms an installation space for installing the second clamping mechanism. The second clamping mechanism includes a second clamping rod, and the second clamping rod is threadedly connected with a first clamping plate and a second clamping plate. The first clamping plate and the second clamping plate are arranged at intervals, and the first clamping plate and the second clamping plate cooperate to relatively fix the second clamping rod on the other end of the second clamping support rod; the lower end of the second clamping rod is connected with a second clamping block; the second clamping block presses the connecting base of the calibration sample on the calibration sample fixture.

[0017] The above scheme enables the test results of the standard calibration parts to provide guarantee for the subsequent testing of the sensors to be tested.

[0018] Furthermore, the heating unit comprises a heating base, on which a plurality of heating elements corresponding to the tooling fixture and the calibration sample fixture are arranged at intervals.

[0019] Furthermore, it also includes a heat insulation cover, and the heat insulation cover is provided with a heat insulation cover evacuation hole for the heating head of the heating element to evacuate.

[0020] The above scheme enhances the safety of operation.

[0021] Furthermore, the heating unit also includes a first lifting power unit, and the heating base is connected to the movable end of the first lifting power unit; the heating unit also includes a heating support seat, and the fixed end of the first lifting power unit is connected to the heating support seat.

[0022] The above solution provides the heating unit with operating space, further ensuring safety.

[0023] Further, the automatic test unit includes a terminal bracket connected to the tooling bottom plate of the tooling unit, and a plurality of first terminals electrically connected to the corresponding sensors to be tested and the corresponding calibration samples are arranged at intervals on the terminal bracket; a plurality of first terminal installation grooves are arranged on the terminal bracket, and the first terminals are installed in the corresponding first terminal installation grooves; a terminal pressing plate is connected to the terminal bracket, and the terminal pressing plate connects the first terminal to the terminal bracket; a terminal limiting groove matching the corresponding first terminal is provided on the terminal pressing plate to further strengthen the connection of the first terminal; a terminal clearance hole is opened on the terminal pressing plate, and the upper contact head of the first terminal passes through the terminal clearance hole and is higher than the upper surface of the terminal pressing plate; The side contact of the first terminal is exposed on the front surface of the terminal pressing plate and the terminal bracket; The automatic test unit further includes a plurality of first probes, the plurality of first probes corresponding to the plurality of first terminals one by one; the plurality of first probes are connected to the probe mounting plate; the plurality of first probes are electrically connected to the electric control box; Also includes a moving component, the first probe is connected to or away from the first terminal through the moving component; The moving assembly includes a moving support frame, to which a transverse moving force unit is connected; a fixed end of the transverse moving force unit is connected to the moving support frame via a connecting bracket; a movable end of the transverse moving force unit is connected to a lifting mounting seat; a second lifting power unit is connected to the lifting mounting seat; and the probe mounting plate is connected to the movable end of the second lifting power unit via an intermediate connecting frame.

[0024] The above solution makes the automatic test unit more flexible and can meet the testing requirements of different locations.

[0025] Further, the first pressing unit comprises a first pressing bottom plate, and a plurality of first pressing rods are arranged at intervals on the first pressing bottom plate; The first pressing bottom plate is provided with a first mounting through hole for a corresponding first pressing rod; the first pressing rod is movably inserted into the first mounting through hole; the upper end of the first pressing rod is connected with a positioning member, the lower part of the first pressing rod extends out of the first mounting through hole, and the lower part of the first pressing rod is sleeved with a first elastic member; the lower end of the first pressing rod is connected with a first pressing block, and the first elastic member is located between the first pressing block and the first pressing bottom plate; The first pressing unit further includes a third lifting power unit, and the first pressing bottom plate is connected to a movable end of the third lifting power unit; The first pressing unit further includes a lateral moving force portion, and the fixed end of the third lifting power portion is connected to the movable end of the lateral moving force portion.

[0026] The above solution further makes it difficult for the sensor to be tested to deviate during the test process.

[0027] The beneficial effects of the high-temperature contact sensor testing equipment of the present invention are specifically embodied in: 1. In view of external factors such as uncontrollable, fatigue, no data traceability, and fuzzy quality control in existing manual detection, a high-temperature contact sensor testing equipment is provided to reduce labor input, improve efficiency, and increase detection accuracy, thereby intercepting the outflow of unqualified products; 2. Tests are standardized to reduce human factors; 3. Through the linkage design of the tooling unit, the heating unit, the automatic testing unit, and the first clamping unit, the entire testing equipment is easy to operate and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a structural schematic diagram of the testing equipment of the high temperature contact sensor of the present invention; Figure 2 A state reference diagram of a test device for a high-temperature contact sensor of the present invention; Figure 3 It is a structural schematic diagram of the tooling unit of the present invention; Figure 4 It is a structural schematic diagram of the fixture of the present invention; Figure 5 It is a structural schematic diagram of the second pressing unit of the present invention; Figure 6 A state reference front view of the tooling unit of the present invention; Figure 7 A bottom view showing the state of the tooling unit of the present invention; Figure 8 It is a structural schematic diagram of the heating unit of the present invention; Fig. 9 A state reference diagram of a heating unit of the present invention; Fig.10 It is a structural front view of the automatic test unit of the present invention; Fig.11 A bottom view of the structure of the automatic test unit of the present invention; Fig.12 is a schematic structural diagram of the first probe of the present invention; Fig.13 A state reference front view of the first probe of the present invention; Fig.14 A bottom view showing the state of the first probe of the present invention; Fig.15 It is a structural schematic diagram of the first pressing unit of the present invention; Fig.16for Fig.15 Partial schematic diagram at point A in the middle.

[0030] Description of reference numerals: 1. tooling unit; 11. tooling base plate; 12. tooling fixture; 13. first mounting groove; 14. first clearance through hole; 15. second mounting groove; 121. fixture body; 122. first connecting groove; 123. second clearance through hole; 124. first side slope; 2. Sensor to be tested; 3. Heating unit; 31. Heating base; 32. Heating element; 33. Positioning guide; 34. Positioning guide sleeve; 35. Heat insulation cover; 36. Heat insulation cover clearance hole; 37. First lifting power unit; 38. Heating support seat; 4. Electric control box; 5. Automatic test unit; 51. Terminal bracket; 511. First terminal mounting groove; 52. First terminal; 53. Terminal pressing plate; 54. Terminal limiting groove; 55. Terminal clearance hole; 56. First probe; 57. Probe mounting plate; 58. Moving assembly; 581. Moving support frame; 582. Transverse moving power unit; 583. Connecting bracket; 584. Lifting mounting seat; 585. Second lifting power unit; 586. Intermediate connecting frame; 587. Transverse moving slider; 588. Transverse moving slide rail; 6. First pressing unit; 61. First pressing bottom plate; 62. First pressing rod; 63. Positioning member; 64. First elastic member; 65. First pressing block; 66. Third lifting power unit; 67. Lateral moving power unit; 7. Calibration sample unit; 71. Calibration sample fixture; 72. Second pressing unit; 721. Second pressing base; 722. Second pressing support rod; 723. Second pressing strip; 724. Second connecting piece; 725. Second pressing handle; 726. Second pressing mechanism; 727. Second pressing rod; 728. First pressing sheet; 729. Second pressing sheet; 7210. Second pressing block; 8. Calibrate the sample. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] A test device for a high temperature contact sensor according to an embodiment of the present application is provided. Figure 1-Figure 2As shown, it comprises: a tooling unit 1, used for installing a sensor 2 to be tested; A heating unit 3, wherein a heating surface of the heating unit 3 is in contact with or away from a contact surface of the sensor to be tested 2 mounted on the tooling unit 1; Electric control box 4, The automatic test unit 5, the electric control box 4 is electrically connected to the sensor 2 to be tested installed on the tooling unit 1 through the automatic test unit 5; The above scheme standardizes the test of the sensor 2 to be tested and achieves good test effect.

[0034] In one embodiment, if Figure 1-Figure 2 As shown, it also includes a first pressing unit 6, which presses the sensor 2 to be tested on the tooling unit 1 to ensure the stability of the sensor 2 to be tested.

[0035] Specifically, Figure 3-Figure 6 As shown, the tooling unit 1 includes a tooling base plate 11, on which a plurality of tooling fixtures 12 adapted to the sensor 2 to be tested are arranged at intervals, and the tooling fixtures 12 are detachably connected to the tooling base plate 11 through fasteners; a first mounting groove 13 is provided on the tooling base plate 11, and the tooling fixture 12 is arranged in the first mounting groove 13; a first clearance through hole 14 is provided on the first mounting groove 13; the upper surface of the tooling fixture 12 is flush with the upper surface of the tooling base plate 11, and the integrity is good; the tooling fixture 12 includes a fixture itself The fixture body 121 is provided with a first connecting groove 122 adapted to the connecting base of the sensor 2 to be tested, and the first connecting groove 122 is provided with a second clearance hole 123. The contact surface of the sensor 2 to be tested passes through the second clearance hole 123 to facilitate the testing of the contact surface of the sensor 2 to be tested, and the center of the second clearance hole 123 coincides with the center of the first clearance hole 14; the first connecting groove 122 is formed with a first slope 124 around the groove edge to facilitate the introduction and installation of the sensor 2 to be tested in the first connecting groove 122.

[0036] Furthermore, if Figure 3 and Figure 6-Figure 7As shown, the tooling unit 1 also includes a calibration sample unit 7, which is connected to the tooling base plate 11; the calibration sample unit 7 includes a calibration sample fixture 71 and a second clamping unit 72, and the structure of the calibration sample fixture 71 is the same as that of the tooling fixture 12; the second clamping unit 72 is connected to the tooling base plate 11; a second mounting groove 15 is provided on the tooling base plate 11, and the second clamping unit 72 is connected to the second mounting groove 15, and the second clamping unit 72 clamps and limits the calibration sample 8 on the calibration sample fixture 71; it should be noted that the calibration sample 8 is a standard sample for testing and is not often replaced. Only when the calibration sample 8 is tested and qualified, the tests of other sensors 2 to be tested can be qualified, thereby ensuring the accuracy of the detection; there are two second clamping units 72, and the two second clamping units 72 are symmetrically arranged on both sides of the calibration sample fixture 71 to ensure uniform force.

[0037] Furthermore, if Figure 5 The second clamping unit 72 includes a second clamping base 721, a second clamping support rod 722 and a second pressure strip 723, and the second clamping base 721 is connected to the second mounting groove 15; one end of the second clamping support rod 722 is rotatably connected to the second clamping base 721 via a pin; one end of the second pressure strip 723 is rotatably connected to the second clamping base 721 via a pin; the second clamping support rod 722 and the second pressure strip 723 are arranged at intervals; the middle portion of the second clamping support rod 722 and the middle portion of the second pressure strip 723 are rotatably connected via a second connecting piece 724, one end of the second connecting piece 724 and the second clamping support rod 722 are rotatably connected via a pin, and the other end of the second connecting piece 724 and the second pressure strip 723 are rotatably connected via a pin; the other end of the second pressure strip 723 forms a second clamping handle portion 725 for convenience The second pressure strip 723 and the second clamping support rod 722 operate in linkage; the other end of the second clamping support rod 722 is detachably connected to the second clamping mechanism 726, and the other end of the second clamping support rod 722 forms an installation space for the installation of the second clamping mechanism 726, and the second clamping mechanism 726 includes a second pressure rod 727, and the second pressure rod 727 is threadedly connected with a first pressure plate 728 and a second pressure plate 729, and the first pressure plate 728 and the second pressure plate 729 are arranged at intervals, and the first pressure plate 728 and the second pressure plate 729 cooperate to relatively fix the second pressure rod 727 on the other end of the second clamping support rod 722; the lower end of the second pressure rod 727 is connected to a second pressure block 7210, and the second pressure block 7210 is integrally formed with the second pressure rod 727 or is detachably connected; the second pressure block 7210 presses the connecting base of the calibration sample 8 on the calibration sample fixture 71.

[0038] In one embodiment, if Figure 8-Figure 9As shown, the heating unit 3 is located directly below the tooling unit 1; the heating unit 3 includes a heating base 31, on which a plurality of heating elements 32 corresponding to the tooling fixture 12 and the calibration sample fixture 71 are arranged at intervals, and the heating element 32 is a planar high-temperature head. It should be noted that the structure and principle of the planar high-temperature head are prior art and will not be repeated here; the heating head of the heating element 32 is in contact with the contact surface of the sensor to be tested 2 through a PI film, and the PI film is coated with thermal conductive silicone grease to ensure that the contact surface of the sensor to be tested 2 is tightly fitted with the heating head and the temperature is uniform and stable.

[0039] Furthermore, if Fig. 9 As shown, in order to prevent the heating element 32 from scalding the operator, a heat insulation cover 35 is also included, and a heat insulation cover 35 is provided with a heat insulation cover evacuation hole 36 for the heating head of the heating element 32 to evacuate.

[0040] Furthermore, if Figure 8-Figure 9 As shown, the heating unit 3 also includes a first lifting power part 37, and the heating base 31 is connected to the movable end of the first lifting power part 37; the first lifting power part 37 is a lifting cylinder or a lifting motor, which is the prior art and will not be repeated here; the heating element 32 is moved closer to or farther away from the tooling unit 1 through the first lifting power part 37.

[0041] Furthermore, if Figure 8-Figure 9 As shown, the heating unit 3 also includes a heating support seat 38, the heat insulation cover 35 is connected to the heating support seat 38, the heat insulation cover 35 covers the heating unit 3 inside, and the fixed end of the first lifting power part 37 is connected to the heating support seat 38. Such a design makes the structure reasonable and the integrity good.

[0042] Furthermore, if Figure 7-Figure 8 As shown, the heating support seat 38 is provided with a positioning guide member 33, and the tooling base plate 11 of the tooling unit 1 is provided with a positioning guide sleeve 34 that matches the positioning guide member 33, so as to facilitate the matching and positioning between the heating support seat 38 and the tooling unit 1.

[0043] In one embodiment, if Figure 10-Figure 14As shown, the automatic test unit 5 includes a terminal bracket 51 connected to the tooling base plate 11 of the tooling unit 1, and a plurality of first terminals 52 electrically connected to the corresponding sensor 2 to be tested and the corresponding calibration sample 8 are arranged at intervals on the terminal bracket 51; the first terminal 52 is used to connect the wires of the sensor 2 to be tested and the calibration sample 8, and the structure of the first terminal 52 is the prior art and is not repeated here; a plurality of first terminal mounting grooves 511 are provided on the terminal bracket 51, and the first terminal 52 is installed in the corresponding first terminal mounting grooves 511; a terminal pressing plate 53 is connected to the terminal bracket 51, and the terminal pressing plate 53 firmly connects the first terminal 52 to the terminal bracket 51; a terminal limiting groove 54 matching the corresponding first terminal 52 is provided on the terminal pressing plate 53 to further strengthen the connection of the first terminal 52; a terminal clearance hole 55 is opened on the terminal pressing plate 53, and the upper contact head of the first terminal 52 passes through the terminal clearance hole 55 and is higher than the upper surface of the terminal pressing plate 53; the first terminal 52 has a grounding terminal; The side contact of the first terminal 52 is exposed on the front surface of the terminal pressing plate 53 and the terminal bracket 51, so as to facilitate the electrical connection between the sensor 2 to be tested and the calibration sample 8; The automatic test unit 5 further includes a plurality of first probes 56, and the plurality of first probes 56 correspond to the plurality of first terminals 52 one by one; the plurality of first probes 56 are connected to the probe mounting plate 57; the plurality of first probes 56 are electrically connected to the electric control box 4, and the first terminals 52 are electrically connected through the first probes 56, thereby realizing electrical connection between the sensor 2 to be tested and the calibration sample 8; It also includes a moving component 58, and the first probe 56 is connected to or away from the first terminal 52 through the moving component 58; The moving assembly 58 includes a moving support frame 581, to which a transverse moving force part 582 is connected. The transverse moving force part 582 is a cylinder or a motor, and its structure is the prior art and will not be described in detail; the fixed end of the transverse moving force part 582 is connected to the moving support frame 581 through a connecting bracket 583; the movable end of the transverse moving force part 582 is connected to a lifting mounting seat 584; the lifting mounting seat 584 is connected to a second lifting power part 585, and the second lifting power part 585 is a lifting sliding cylinder or a lifting motor, and its structure is the prior art and will not be described in detail; the probe mounting plate 57 is connected to the movable end of the second lifting power part 585 through an intermediate connecting frame 586; Through the cooperation of the transverse moving power part 582 and the second lifting power part 585 , the first probe 56 is brought into contact with or away from the first terminal 52 .

[0044] Furthermore, if Fig.13As shown, the movable support frame 581 is connected to a transverse sliding block 587; the lifting mounting seat 584 is provided with a transverse sliding rail 588 slidably connected to the transverse sliding block 587, so that the first probe 56 is more stable during the transverse movement process.

[0045] In one embodiment, if Figure 15-16 As shown, the first pressing unit 6 includes a first pressing bottom plate 61, on which a plurality of first pressing rods 62 are arranged at intervals. One sensor 2 to be tested corresponds to two first pressing rods 62, and two first pressing rods 62 press one sensor 2 to be tested, which has good stability; the two first pressing rods 62 are symmetrically arranged; The first pressing bottom plate 61 is provided with a first mounting through hole for the corresponding first pressing rod 62; the first pressing rod 62 is movably inserted into the first mounting through hole; the upper end of the first pressing rod 62 is connected with a clamping piece 63, which is a retaining spring, which prevents the first pressing rod 62 from falling from the first mounting through hole, and the lower part of the first pressing rod 62 extends to the outside of the first mounting through hole, and the lower part of the first pressing rod 62 is sleeved with a first elastic piece 64, which is a spring; the lower end of the first pressing rod 62 is connected with a first pressing block 65, and the first elastic piece 64 is located between the first pressing block 65 and the first pressing bottom plate 61. The first pressing rod 62 is clamped under the action of the first elastic piece 64 and the clamping piece 63; The first clamping unit 6 also includes a third lifting power unit 66, which is a lifting sliding cylinder or a lifting motor. Its structure is prior art and will not be described in detail. The first clamping base plate 61 is connected to the movable end of the third lifting power unit 66.

[0046] The first pressing unit 6 further includes a lateral moving force part 67, the fixed end of the third lifting power part 66 is connected to the movable end of the lateral moving force part 67, and the lateral moving force part 67 is a cylinder or a motor, and its structure is the prior art and will not be described in detail; Through the cooperation of the lateral moving force part 67 and the third lifting power part 66 , the first pressing block 65 is pressed or moved away from the corresponding sensor 2 to be tested.

[0047] The test equipment of the present application simulates the temperature accuracy test of the product feedback under the high-temperature working conditions of the actual use of the sensor 2 to be tested; the present application aims at the external factors such as the uncontrollable, fatigue, no data traceability, and fuzzy quality control of existing manual inspections, thereby providing test equipment for high-temperature contact sensors, which can not only trace the test data of the product, but also reduce the input of manpower, with higher efficiency and higher detection accuracy, and intercept the outflow of unqualified products.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A test device for high temperature contact sensors, characterized in that: It includes: tooling A unit (1) for mounting a sensor to be tested (2); the tooling unit (1) comprises a tooling base plate (11), a plurality of tooling fixtures (12) adapted to the sensor to be tested (2) are arranged at intervals on the tooling base plate (11), and the tooling fixtures (12) are detachably connected to the tooling base plate (11); A heating unit (3), wherein a heating surface of the heating unit (3) is in contact with or away from a contact surface of a sensor to be tested (2) mounted on the tooling unit (1); Electric control box (4); The automatic test unit (5) is electrically connected to the sensor to be tested (2) installed on the tooling unit (1) through the automatic test unit (5).

2. The high temperature contact sensor testing device according to claim 1, characterized in that: It also comprises a first pressing unit (6), wherein the first pressing unit (6) presses the sensor to be tested (2) on the tooling unit (1).

3. The high temperature contact sensor testing device according to claim 1, characterized in that: The tooling base plate (11) is provided with a first mounting groove (13), and the tooling fixture (12) is arranged in the first mounting groove (13); the first mounting groove (13) is provided with a first clearance through hole (14); the tooling fixture (12) comprises a fixture body (121), the fixture body (121) is provided with a first connection groove (122) adapted to a connection base of a sensor to be tested (2), the first connection groove (122) is provided with a second clearance through hole (123), a contact surface of the sensor to be tested (2) passes through the second clearance through hole (123), and the center of the second clearance through hole (123) coincides with the center of the first clearance through hole (14); and a first side slope (124) is formed around the groove edge of the first connection groove (122).

4. The high temperature contact sensor testing device according to claim 3, characterized in that: The tooling unit (1) further comprises a calibration sample unit (7), the calibration sample unit (7) being connected to the tooling base plate (11); the calibration sample unit (7) comprising a calibration sample fixture (71) and a second pressing unit (72), the structure of the calibration sample fixture (71) being the same as that of the tooling fixture (12); the second pressing unit (72) being connected to the tooling base plate (11); a second mounting groove (15) being provided on the tooling base plate (11), the second pressing unit (72) being connected to the second mounting groove (15), and the second pressing unit (72) pressing and limiting the calibration sample (8) on the calibration sample fixture (71).

5. The high temperature contact sensor testing device according to claim 4, characterized in that: The second clamping unit (72) comprises a second clamping base (721), a second clamping support rod (722) and a second pressure strip (723), wherein the second clamping base (721) is connected to the second mounting groove (15); one end of the second clamping support rod (722) is rotatably connected to the second clamping base (721) via a pin shaft; one end of the second pressure strip (723) is rotatably connected to the second clamping base (721) via a pin shaft; the second clamping support rod (722) and the second pressure strip (723) are arranged at intervals; the middle part of the second clamping support rod (722) and the middle part of the second pressure strip (723) are rotatably connected via a second connecting piece (724); one end of the second connecting piece (724) and the second clamping support rod (722) are rotatably connected via a pin shaft; the other end of the second connecting piece (724) and the second pressure strip (723) are rotatably connected via a pin shaft; the second pressure strip The other end of the second clamping support rod (723) forms a second clamping handle portion (725); the other end of the second clamping support rod (722) is detachably connected to a second clamping mechanism (726); the other end of the second clamping support rod (722) forms an installation space for installing the second clamping mechanism (726); the second clamping mechanism (726) comprises a second clamping rod (727); a first clamping plate (728) and a second clamping plate (729) are threadedly connected to the second clamping rod (727); the first clamping plate (728) and the second clamping plate (729) are arranged at intervals; the first clamping plate (728) and the second clamping plate (729) cooperate to relatively fix the second clamping rod (727) to the other end of the second clamping support rod (722); the lower end of the second clamping rod (727) is connected to a second clamping block (7210); the second clamping block (7210) presses the connection base of the calibration sample (8) onto the calibration sample fixture (71).

6. The high temperature contact sensor testing device according to claim 5, characterized in that: The heating unit (3) comprises a heating base (31), on which a plurality of heating elements (32) corresponding to the tooling fixture (12) and the calibration sample fixture (71) are arranged at intervals.

7. The high temperature contact sensor testing device according to claim 6, characterized in that: It also includes a heat insulation cover (35), on which a heat insulation cover evacuation hole (36) for evacuating the heating head of the heating element (32) is provided.

8. The high temperature contact sensor testing device according to claim 6, characterized in that: The heating unit (3) further comprises a first lifting power unit (37), and the heating base (31) is connected to the movable end of the first lifting power unit (37); the heating unit (3) further comprises a heating support seat (38), and the fixed end of the first lifting power unit (37) is connected to the heating support seat (38).

9. The high temperature contact sensor testing device according to claim 1, characterized in that: The automatic test unit (5) comprises a terminal support (51) connected to a tooling base plate (11) of a tooling unit (1), wherein a plurality of first terminals (52) electrically connected to corresponding sensors to be tested (2) and corresponding calibration samples (8) are arranged at intervals on the terminal support (51); a plurality of first terminal installation grooves (511) are arranged on the terminal support (51), and the first terminals (52) are installed in the corresponding first terminal installation grooves (511); a terminal pressing plate (53) is connected to the terminal support (51), and the terminal pressing plate (53) connects the first terminals (52) to the terminal support (51); a terminal limiting groove (54) matching the corresponding first terminal (52) is arranged on the terminal pressing plate (53); a terminal clearance hole (55) is opened on the terminal pressing plate (53), and the upper contact head of the first terminal (52) passes through the terminal clearance hole (55) and is higher than the upper surface of the terminal pressing plate (53); The side contact of the first terminal (52) is exposed on the front surface of the terminal pressing plate (53) and the terminal bracket (51); The automatic test unit (5) further comprises a plurality of first probes (56), the plurality of first probes (56) corresponding one to one with the plurality of first terminals (52); the plurality of first probes (56) are connected to a probe mounting plate (57); the plurality of first probes (56) are electrically connected to the electric control box (4); It also includes a moving component (58), and the first probe (56) is connected to or separated from the first terminal (52) through the moving component (58); The moving assembly (58) includes a moving support frame (581), and a transverse moving force unit (582) is connected to the moving support frame (581); the fixed end of the transverse moving force unit (582) is connected to the moving support frame (581) via a connecting bracket (583); the movable end of the transverse moving force unit (582) is connected to a lifting mounting seat (584); the lifting mounting seat (584) is connected to a second lifting power unit (585); the probe mounting plate (57) is connected to the movable end of the second lifting power unit (585) via an intermediate connecting frame (586).

10. The high temperature contact sensor testing device according to claim 2, characterized in that: The first pressing unit (6) comprises a first pressing base plate (61), on which a plurality of first pressing rods (62) are arranged at intervals; The first pressing bottom plate (61) is provided with a first mounting through hole for a corresponding first pressing rod (62); the first pressing rod (62) is movably inserted into the first mounting through hole; the upper end of the first pressing rod (62) is connected with a locking member (63), the lower part of the first pressing rod (62) extends out of the first mounting through hole, and the lower part of the first pressing rod (62) is sleeved with a first elastic member (64); the lower end of the first pressing rod (62) is connected with a first pressing block (65), and the first elastic member (64) is located between the first pressing block (62) and the first pressing bottom plate (61); The first pressing unit (6) further comprises a third lifting power part (66), and the first pressing base plate (61) is connected to a movable end of the third lifting power part (66); The first pressing unit (6) further comprises a lateral moving force part (67), and the fixed end of the third lifting power part (66) is connected to the movable end of the lateral moving force part (67).

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