Testing tool for automobile exhaust temperature sensor

Abstract

The invention discloses a test tool for an automobile exhaust temperature sensor, and the tool comprises a bottom plate, one end of the top of the bottom plate is provided with a fixed block, the top of the fixed block is provided with a self-locking assembly, the other end of the top of the bottom plate is provided with a cylinder, and the output end of the cylinder is provided with an adjusting assembly. Different to-be-tested sensors are respectively installed in a plurality of installation grooves, when a motor is started to drive a cam to rotate to a concave position, a connecting plate rotates downwards around a second fixing frame under the action of gravity, a limiting block is separated from a tooth groove of a first gear, and a rotating tooth rotates downwards to another tooth groove of the first gear; when the cam rotates to the protrusion, the connecting plate is driven to rotate upwards, so that the rotating teeth push the first gear to rotate, then the rotating shaft rotates to drive the mounting cylinder to rotate, the to-be-tested sensor in the other mounting groove can be tested conveniently, and the detection precision of the to-be-tested sensor in different positions of the heat source can be tested conveniently through the adjusting assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of test tooling, and specifically to a test tooling for an automotive exhaust gas temperature sensor. Background Art

[0002] A sensor is a detection device that can sense the information to be measured and transform the sensed information into an electrical signal or other required form of information output according to a certain rule to meet the requirements of information transmission, processing, storage, display, recording, and control. To meet the continuously improving automotive exhaust gas emission standards, the emission and complete combustion of exhaust gas must be controlled through high-temperature measurement.

[0003] The prior art patent document with the publication number CN118376336B provides a test tooling for an automotive exhaust gas temperature sensor, including a base. The clamping tube is used to drive the sensor to move, so that the end of the sensor for receiving information approaches the heating element. Utilizing the characteristic that the temperature is different at different distances from the heating element, the sensor can perform temperature detection for heating the sensor when approaching the heating element. Under this condition, the temperature detection of the sensor transitions smoothly, improving the detection accuracy at different temperatures. The sensor can be flipped through a gear, and the sensor is in two states when approaching and moving away from the heating element. The two states are that the end of the sensor for receiving information faces the heating element and faces away from the heating element respectively, realizing the temperature detection of the sensor in the two states and greatly improving the detection accuracy.

[0004] Although this device has many beneficial effects, there are still the following problems: During the use of this device, only one temperature sensor can be tested at a time, and the efficiency is not high enough; secondly, it is not convenient to adjust the angle of the heating element during the use of this device, and the detection accuracy of the temperature sensor under different positions of the heat source cannot be tested, which needs to be improved. In view of this, we propose a test tooling for an automotive exhaust gas temperature sensor. Summary of the Invention

[0005] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title of the invention. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] 1. Technical Problems to be Solved:

[0007] In order to solve the problems of only being able to test one temperature sensor at a time with low efficiency and not being convenient to adjust the angle of the heating element, and unable to test the detection accuracy of the temperature sensor under different positions of the heat source as described above, the present invention is proposed.

[0008] Therefore, the object of the present invention is to provide a test tooling for automotive exhaust gas temperature sensors, which is convenient for testing multiple temperature sensors, effectively improves the test efficiency, is convenient for adjusting the angle of the heating element relative to the sensor, and is convenient for testing the detection accuracy of the temperature sensor under different positions of the heat source.

[0009] 2. Technical solution:

[0010] To solve the above technical problems, according to one aspect of the present invention, the following technical solutions are provided:

[0011] A test tooling for automotive exhaust gas temperature sensors, which includes a bottom plate. One end of the top of the bottom plate is provided with a fixed block, and the top of the fixed block is provided with a self-locking component. The self-locking component includes a first fixed frame. One side wall of the first fixed frame is rotatably connected to a rotating shaft. One end of the circumferential outer wall of the rotating shaft is provided with a first gear. One end of the top of the fixed block is provided with a second fixed frame. One side wall of the second fixed frame is rotatably connected to a connecting plate. One side wall of the fixed block is provided with a fixed plate, and one side wall of the fixed plate is provided with a motor. The output end of the motor is provided with a cam. One end of the bottom of the connecting plate is rotatably connected to a rotating wheel. One end of the top of the connecting plate is rotatably connected to a rotating tooth. One side wall of the connecting plate is provided with a limiting block. The other end of the rotating shaft is provided with an installation cylinder. A plurality of installation grooves are opened on the side wall of the installation cylinder, and a plurality of sensors to be tested are arranged inside the plurality of installation grooves. The other end of the top of the bottom plate is provided with a cylinder, and the output end of the cylinder is provided with an adjusting component. A heating element is arranged on the top of the adjusting component. The motor and the cylinder are electrically connected to an external power supply. The rotating wheel is convenient for reducing friction and avoiding obstruction of the rotation of the cam.

[0012] As a preferred scheme of the test tooling for automotive exhaust gas temperature sensors of the present invention, wherein, the adjusting component includes a support rod. The inner wall of the top of the support rod is rotatably connected to a rotating rod. An adjusting rod is arranged on the circumferential outer wall of the rotating rod. A second gear is arranged in the middle of the circumferential outer wall of the rotating rod. The top of the support rod is slidably connected to a first moving rod. A clamping block is arranged on the top of the first moving rod. A first spring sleeved on the circumferential outer wall of the first moving rod is arranged at the bottom of the clamping block. A dial is arranged at the bottom of the first moving rod. The notch at the top of the support rod is convenient for the rotation of the adjusting rod and prevents obstruction.

[0013] As a preferred scheme of the test tooling for automotive exhaust gas temperature sensors of the present invention, wherein, the size and position of the limiting block match the size and position of the tooth groove of the first gear, and the position of the cam matches the position of the rotating wheel.

[0014] As a preferred scheme of the test tooling for automotive exhaust gas temperature sensors of the present invention, wherein, the size and position of the second gear match the size and position of the clamping block, and the dial penetrates and extends out of the side wall of the support rod.

[0015] As a preferred solution of a test fixture for an automobile exhaust temperature sensor of the present invention, a slide groove is provided on the top of the bottom plate, and a slider located at the bottom of the support rod is slidably connected to the bottom of the slide groove.

[0016] As a preferred solution of a test fixture for an automobile exhaust temperature sensor of the present invention, the cross section of the slide groove is a "丄" shape, and the size of the slide groove matches the size of the slider.

[0017] As a preferred solution of a test fixture for an automobile exhaust temperature sensor of the present invention, a plurality of second movable rods are slidably connected to the circumferential outer wall of the mounting cylinder, a clamping plate located inside the mounting groove is provided at the bottom of the second movable rod, a pull plate is provided at the top of the second movable rod, and a second spring sleeved on the circumferential outer wall of the second movable rod is provided at the bottom of the pull plate.

[0018] As a preferred solution of a test fixture for an automobile exhaust temperature sensor of the present invention, a pad is provided at the bottom of the clamping plate, and the material of the pad is fluororubber. The elasticity of the fluororubber pad itself facilitates the pad to fit more closely with the sensor to be tested, making the installation of the sensor to be tested more stable.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The test fixture for automobile exhaust temperature sensor respectively installs different sensors to be tested in multiple installation grooves, and drives the cam to rotate by turning on the motor. When the cam rotates to the concave position, the connecting plate rotates downward around the second fixing frame under the action of gravity, and the limit block is separated from the tooth groove of the first gear. The rotating gear rotates downward to another tooth groove of the first gear under the action of gravity. When the cam rotates to the protrusion, it drives the connecting plate to rotate upward around the second fixing frame, so that the rotating gear pushes the first gear to rotate, and then the rotating shaft rotates to drive the installation cylinder to rotate. The limit block enters the tooth groove of the first gear for self-locking, which is convenient for testing the sensor to be tested in another installation groove. By turning on the cylinder, the adjusting component drives the heating element to move toward the sensor to be tested and heats up smoothly, thereby improving the detection accuracy at different temperatures.

[0022] This test fixture for automobile exhaust temperature sensor drives the first moving rod to move downward by pushing the paddle downward, thereby disengaging the clamping block from the second gear, rotating the adjusting rod to drive the heating element to adjust to a desired angle, releasing the paddle, and driving the clamping block to move upward and engage the second gear through the rebound force of the first spring, thereby completing the locking, which is convenient for testing the detection accuracy of the sensor to be tested at different positions of the heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0024] Figure 1 It is a schematic diagram of the overall structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of a self-locking component of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0026] Figure 3 It is a schematic diagram of the rotation of the self-locking component structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0027] Figure 4 It is a schematic diagram of the disassembly of the installation cylinder structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-section of the bottom plate structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0029] Figure 6 It is a schematic diagram of the adjusting rod structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention;

[0030] Figure 7 It is a schematic diagram of the adjusting component structure of a test tooling for an automotive exhaust gas temperature sensor according to the present invention.

[0031] Explanation of the reference numerals in the figure: 1. Bottom plate; 2. Fixed block; 3. Self-locking component; 4. Installation cylinder; 5. Installation groove; 6. Sensor to be tested; 7. Cylinder; 8. Adjusting component; 9. Heating element; 10. Slide groove; 11. Slide block; 12. Second moving rod; 13. Clamping plate; 14. Pulling plate; 15. Second spring; 16. Cushion plate; 301. First fixing frame; 302. Rotating shaft; 303. First gear; 304. Second fixing frame; 305. Connecting plate; 306. Fixed plate; 307. Motor; 308. Cam; 309. Runner; 310. Rotating tooth; 311. Limiting block; 801. Support rod; 802. Rotating rod; 803. Adjusting rod; 804. Second gear; 805. First moving rod; 806. Clamping block; 807. First spring; 808. Poking plate. Specific embodiments

[0032] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings.

[0033] The present invention is described in detail with reference to schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views showing the device structure are enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0034] The orientation or positional relationship indicated in the terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0035] The connection mode in the terms should be understood in a broad sense. For example, "connection" 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 directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] The following will further describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0037] The present invention provides a schematic diagram of the overall structure of an embodiment of a test tool for an automotive exhaust gas temperature sensor, including:

[0038] Please refer to Figures 1-7, A test tool for an automotive exhaust gas temperature sensor according to this embodiment includes a bottom plate 1. At one end of the top of the bottom plate 1, a fixed block 2 is welded. At the top of the fixed block 2, a self-locking component 3 is welded. The self-locking component 3 includes a first fixing frame 301. A rotating shaft 302 is rotatably connected to the side wall of the first fixing frame 301. At one end of the circumferential outer wall of the rotating shaft 302, a first gear 303 is fixedly provided. At one end of the top of the fixed block 2, a second fixing frame 304 is welded. A connecting plate 305 is rotatably connected to the side wall of the second fixing frame 304. A fixing plate 306 is welded to the side wall of the fixed block 2. A motor 307 is fixedly provided on the side wall of the fixing plate 306. A cam 308 is fixedly provided at the output end of the motor 307. At one end of the bottom of the connecting plate 305, a rotating wheel 309 is rotatably connected. At one end of the top of the connecting plate 305, a rotating tooth 310 is rotatably connected. A limiting block 311 is welded to the side wall of the connecting plate 305. At the other end of the rotating shaft 302, an installation cylinder 4 is fixedly provided. A plurality of installation slots 5 are opened on the side wall of the installation cylinder 4. A plurality of sensors to be tested 6 are clamped inside the plurality of installation slots 5. At the other end of the top of the bottom plate 1, a cylinder 7 is fixedly provided. An adjusting component 8 is fixedly provided at the output end of the cylinder 7. A heating element 9 is fixedly provided on the top of the adjusting component 8. The motor 307 and the cylinder 7 are electrically connected to an external power supply. Different sensors to be tested 6 are respectively installed inside the plurality of installation slots 5. By turning on the motor 307 to drive the cam 308 to rotate, when the cam 308 rotates to the concave part, under the action of gravity, the connecting plate 305 rotates downward around the second fixing frame 304, and the limiting block 311 disengages from the tooth slot of the first gear 303. The rotating tooth 310 rotates downward under the action of gravity to another tooth slot of the first gear 303. When the cam 308 rotates to the convex part, it drives the connecting plate 305 to rotate upward around the second fixing frame 304, so that the rotating tooth 310 pushes the first gear 303 to rotate, and then the rotating shaft 302 rotates to drive the installation cylinder 4 to rotate. The limiting block 311 enters the tooth slot of the first gear 303 for self-locking, which is convenient for testing the sensor to be tested 6 inside another installation slot 5. By turning on the cylinder 7, the adjusting component 8 drives the heating element 9 to move towards the sensor to be tested 6 to increase the temperature smoothly, thereby improving the detection accuracy at different temperatures.

[0039] It is worth noting that, in order to facilitate the testing of the detection accuracy of the sensor 6 to be tested at different angles of the heat source, specifically, the adjustment component 8 includes a support rod 801, the top inner wall of the support rod 801 is rotatably connected to a rotating rod 802, the outer wall of the rotating rod 802 is fixedly provided with an adjustment rod 803, the middle of the outer wall of the rotating rod 802 is fixedly provided with a second gear 804, the top of the support rod 801 is slidably connected to a first moving rod 805, the top of the first moving rod 805 is fixedly provided with a block 806, and the bottom of the block 806 is fixedly provided with a sleeve on the first moving rod The first spring 807 on the outer wall of the circumference of 805 and a paddle plate 808 are fixedly provided at the bottom of the first moving rod 805. The paddle plate 808 is pushed downward to drive the first moving rod 805 to move downward, so that the blocking block 806 is disengaged from the second gear 804. The adjusting rod 803 is rotated to drive the heating element 9 to adjust to the required angle, and the paddle plate 808 is released. The rebound force of the first spring 807 drives the blocking block 806 to move upward to engage with the second gear 804, thereby completing the locking, which is convenient for testing the detection accuracy of the sensor 6 to be tested at different positions of the heat source.

[0040] Next, in order to improve the stability of the installation tube 4, specifically, the size and position of the limit block 311 match the size and position of the tooth groove of the first gear 303, and the position of the cam 308 matches the position of the rotating wheel 309. The limit block 311 that matches the size and position of the tooth groove of the first gear 303 is used to prevent the first gear 303 from causing the installation tube 4 to shake.

[0041] At the same time, in order to prevent the second gear 804 from shaking, specifically, the size and position of the second gear 804 match the size and position of the block 806, and the shift plate 808 extends through the side wall of the support rod 801. The second gear 804 that matches the size and position of the block 806 can make the connection tighter and avoid shaking. The shift plate 808 that extends through the side wall of the support rod 801 is convenient for the staff to shift.

[0042] Furthermore, in order to improve the movement stability of the support rod 801, specifically, a slide groove 10 is opened on the top of the base plate 1, and a slider 11 located at the bottom of the support rod 801 is slidably connected to the bottom of the slide groove 10. The slider 11 moves at the bottom of the slide groove 10, which facilitates the support rod 801 to move more smoothly.

[0043] It is worth noting that in order to facilitate the definition of the position of the slider 11, specifically, the cross-section of the slide groove 10 is in the shape of a Chinese character "丄", and the size of the slide groove 10 matches the size of the slider 11. The "丄"-shaped slide groove 10 that matches the size of the slider 11 prevents the slider 11 from detaching from the slide groove 10.

[0044] Secondly, to prevent the sensor 6 under test from falling during testing, specifically, a plurality of second moving rods 12 are slidably connected to the outer circumferential wall of the mounting cylinder 4. A clamping plate 13 located inside the mounting groove 5 is fixedly provided at the bottom of the second moving rod 12. A pulling plate 14 is fixedly provided at the top of the second moving rod 12. A second spring 15 sleeved on the outer circumferential wall of the second moving rod 12 is fixedly provided at the bottom of the pulling plate 14. Pull the pulling plate 14 outwards, place the sensor 6 under test into the mounting groove 5, and release the pulling plate 14. The pulling plate 14 is driven to move inwards by the resilience of the second spring 15, so that the second moving rod 12 drives the clamping plate 13 to move inwards to clamp the sensor 6 under test, improving stability.

[0045] Finally, to prevent the clamping plate 13 from damaging the sensor 6 under test, specifically, a backing plate 16 is fixedly provided at the bottom of the clamping plate 13. The material of the backing plate 16 is fluororubber. The sensor 6 under test is prevented from being damaged through the backing plate 16. Fluororubber refers to a synthetic polymer elastomer in which fluorine atoms are contained on the carbon atoms of the main chain or side chain. The introduction of fluorine atoms endows the rubber with excellent heat resistance, antioxidant properties, oil resistance, corrosion resistance, and atmospheric aging resistance. The high-temperature resistance performance is convenient for adapting to the testing of automotive exhaust gas temperature sensors and avoiding melting when the heating element 9 is close.

[0046] In addition, the circuits, electronic components, and modules involved in the present invention are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to the internal structure and method either.

[0047] The device or equipment models involved in this article are as follows:

[0048] Motor 307: Y90S-2;

[0049] Cylinder 7: CA2Y-Z40.

[0050] Combined with Figures 1-7 , a test tool for an automotive exhaust gas temperature sensor in this embodiment is used as follows:

[0051] 1: When this device is needed to be used as a test tool for automotive exhaust gas temperature sensors, pull the pull plate 14 outwards, place different sensors 6 to be tested into the multiple installation grooves 5 respectively, release the pull plate 14, and the resilience of the second spring 15 drives the pull plate 14 to move inwards, so that the second moving rod 12 drives the clamping plate 13 to move inwards to clamp the sensor 6 to be tested. Start the cylinder 7 to make the adjusting assembly 8 drive the heating element 9 to move towards the sensor 6 to be tested for stable temperature rise. Start the motor 307 to drive the cam 308 to rotate. When the cam 308 rotates to the concave part, under the action of gravity, the connecting plate 305 rotates downwards around the second fixing frame 304, and the limiting block 311 disengages from the tooth groove of the first gear 303. The rotating tooth 310 rotates downwards under the action of gravity to another tooth groove of the first gear 303. When the cam 308 rotates to the convex part, it makes the connecting plate 305 rotate upwards to drive the rotating tooth 310 to push the first gear 303 to rotate, so that the rotating shaft 302 rotates to drive the installation cylinder 4 to rotate, and then test the sensor 6 to be tested in another installation groove 5. The limiting block 311 enters the tooth groove of the first gear 303 for self-locking;

[0052] 2: Dial the dial plate 808 downwards to make the first moving rod 805 drive the block 806 to move downwards, rotate the adjusting rod 803 to drive the heating element 9 to adjust to the required angle, release the dial plate 808, and the resilience of the first spring 807 drives the block 806 to move upwards to clamp the second gear 804 to complete the locking.

[0053] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A test fixture for an automobile exhaust temperature sensor, characterized in that: It includes a bottom plate (1). One end of the top of the bottom plate (1) is provided with a fixing block (2). The top of the fixing block (2) is provided with a self-locking component (3). The self-locking component (3) includes a first fixing frame (301). One side wall of the first fixing frame (301) is rotatably connected to a rotating shaft (302). One end of the circumferential outer wall of the rotating shaft (302) is provided with a first gear (303). One end of the top of the fixing block (2) is provided with a second fixing frame (304). One side wall of the second fixing frame (304) is rotatably connected to a connecting plate (305). One side wall of the fixing block (2) is provided with a fixing plate (306). One side wall of the fixing plate (306) is provided with a motor (307). The output end of the motor (307) is provided with a cam (308). One end of the bottom of the connecting plate (305) is rotatably connected to a rotating wheel (309). One end of the top of the connecting plate (305) is rotatably connected to a rotating tooth (310). One side wall of the connecting plate (305) is provided with a limiting block (311). The other end of the rotating shaft (302) is provided with an installation cylinder (4). A plurality of installation slots (5) are opened on the side wall of the installation cylinder (4). A plurality of待测 sensors (6) are arranged inside the plurality of installation slots (5). The other end of the top of the bottom plate (1) is provided with a cylinder (7). The output end of the cylinder (7) is provided with an adjusting component (8). The top of the adjusting component (8) is provided with a heating element (9). The motor (307), the cylinder (7) are electrically connected to an external power supply.

2. The test fixture for automobile exhaust temperature sensor according to claim 1, characterized in that: The adjusting component (8) includes a support rod (801). The inner wall of the top of the support rod (801) is rotatably connected to a rotating rod (802). An adjusting rod (803) is arranged on the circumferential outer wall of the rotating rod (802). A second gear (804) is arranged in the middle of the circumferential outer wall of the rotating rod (802). A first moving rod (805) is slidably connected to the top of the support rod (801). A clamping block (806) is arranged on the top of the first moving rod (805). A first spring (807) sleeved on the circumferential outer wall of the first moving rod (805) is arranged at the bottom of the clamping block (806). A dial plate (808) is arranged at the bottom of the first moving rod (805).

3. The test fixture for automobile exhaust temperature sensor according to claim 2, characterized in that: The size and position of the limiting block (311) match the size and position of the tooth groove of the first gear (303). The position of the cam (308) matches the position of the rotating wheel (309).

4. The test fixture for automobile exhaust temperature sensor according to claim 3, characterized in that: The size and position of the second gear (804) match the size and position of the clamping block (806). The dial plate (808) penetrates and extends out of the side wall of the support rod (801).

5. The test fixture for automobile exhaust temperature sensor according to claim 4, characterized in that: A chute (10) is opened on the top of the bottom plate (1). A slider (11) located at the bottom of the support rod (801) is slidably connected to the bottom of the chute (10).

6. The test fixture for automobile exhaust temperature sensor according to claim 5, characterized in that: The cross section of the chute (10) is "丄”-shaped. The size of the chute (10) matches the size of the slider (11).

7. The test fixture for automobile exhaust temperature sensor according to claim 6, characterized in that: A plurality of second moving rods (12) are slidably connected to the circumferential outer wall of the installation tube (4); a clamping plate (13) located inside the installation groove (5) is provided at the bottom of the second moving rod (12); a pulling plate (14) is provided at the top of the second moving rod (12); and a second spring (15) sleeved on the circumferential outer wall of the second moving rod (12) is provided at the bottom of the pulling plate (14).

8. The test fixture for automobile exhaust temperature sensor according to claim 7, characterized in that: A pad (16) is provided at the bottom of the clamping plate (13), and the pad (16) is made of fluororubber.

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