An automated temperature measuring device

Abstract

The application provides an automatic temperature measuring device. The automatic temperature measuring device comprises a side plate, a mounting frame fixedly connected to the front end of the side plate, a device frame movably arranged on the inner side surface of the side plate and horizontally movable and rectangular, and a worm horizontally and rotationally connected to the inner cavity of the device frame. The automatic temperature measuring device provided by the application realizes automatic adjustment of the angle of a thermocouple through worm and gear drive, cooperates with forward and backward feeding of a cylinder and a contact detection switch, realizes full-automatic temperature measurement, is suitable for different specifications of samples, is convenient to adjust, is accurate in positioning, uses a spring pre-tightening structure to ensure flexible attachment of the thermocouple to the sample, improves temperature measurement stability and repeatability, uses a high-temperature alloy guide pipe which is heat-resistant and anti-deformation to significantly improve the service life, and uses a deflection correction mechanism to correct deflection caused by thermal stress, thereby reducing maintenance cost, and the overall structure is stable and reliable, and can meet the requirements of high-precision, high-stability and continuous temperature measurement of a full-automatic high-temperature tensile test system.

Description

Technical Field

[0001] This invention relates to the field of automated testing equipment technology, and in particular to an automated temperature measuring device. Background Technology

[0002] In high-temperature tensile mechanical property testing of materials, accurate measurement of the specimen temperature is crucial to ensuring the reliability of test data. Currently, the industry commonly uses side-inserted armored thermocouples for temperature measurement, where the thermocouple probe extends from the side of the high-temperature furnace and rests against the specimen surface to achieve real-time temperature acquisition under high-temperature conditions. With the increasing prevalence of fully automated high-temperature tensile testing systems, higher requirements are placed on the automation level, structural stability, positional repeatability, and long-term reliability of temperature measuring devices.

[0003] Existing side-insertion temperature measurement devices generally have many defects: the rigidity of the thermocouple mounting structure is insufficient, and it is easy to become skewed or displaced after repeated use, resulting in poor temperature measurement repeatability; the heat resistance of the guide tube is poor, and it is prone to thermal stress deformation and breakage, resulting in a short service life; the adjustment operation for samples of different specifications is cumbersome and has low accuracy, making it difficult for non-professionals to operate; after long-term use, the skew caused by the thermocouple or guide tube cannot be corrected, and only replacement of parts is possible, resulting in high maintenance costs and making it difficult to meet the continuous and stable operation requirements of automated testing systems.

[0004] Therefore, existing temperature measuring devices can no longer meet the requirements of automated, high-precision, and highly stable high-temperature tensile testing. There is an urgent need for a new type of automated temperature measuring device with a more stable structure, more convenient adjustment, automatic correction of deviation, and automated execution function to solve the above problems. Summary of the Invention

[0005] This invention provides an automated temperature measurement device that solves the problems of existing devices being structurally unstable, prone to tilting and breakage, cumbersome to adjust, unable to correct tilting, and difficult to adapt to automated testing.

[0006] To solve the above-mentioned technical problems, the present invention provides an automated temperature measuring device, including a side plate, a mounting bracket fixedly connected to the front end of the side plate, a rectangular device frame that can move horizontally on the inner surface of the side plate, a skew correction seat that is laterally rotatably connected to the upper and lower parts of the inner surface of the device frame, a worm gear structure that can control the skew angle of the two skew correction seats is provided inside the device frame, a connecting seat is laterally fixedly connected to the same side surface of the device frame and located between the two skew correction seats, a tubular pre-tightening member is fixedly connected inside the connecting seat and the two skew correction seats, and a guide tube is laterally slidably connected to the front end of the plurality of pre-tightening members.

[0007] Preferably, the worm gear structure includes a worm that is laterally rotatably connected to the middle of the inner cavity of the device frame. Worm wheels that mesh with the worm are rotatably connected to the inner cavity of the device frame, located above and below the worm. One side surface of each of the two worm wheels is laterally fixedly connected to a connecting shaft. The other end of each connecting shaft can rotatably pass through one side surface of the device frame and extend outward. The outer ends of the two connecting shafts are respectively fixedly connected to the two skew correction seats.

[0008] Preferably, each of the multiple pretensioners is provided with a thermocouple inside, the spring rods of the multiple thermocouples extend into the interior of the corresponding guide tube, and a spring is laterally fixed between the rear end of the multiple thermocouples and the rear end inside the pretensioner.

[0009] Preferably, a contact detection plate is laterally fixedly connected to the outer end surface of the connecting seat of the part.

[0010] Preferably, the outer surface of the pre-tightening member in the middle is provided with a through groove extending along its length, and the outer surface of the thermocouple in the middle is laterally fixed with a contact detection switch, the outer end of the contact detection switch passing through the through groove and extending into the groove of the contact detection plate.

[0011] Preferably, a motor is laterally fixedly connected to the middle of the rear surface of the device frame, and the output shaft of the motor rotatably passes through the device frame and is fixedly connected to the rear end of the worm gear.

[0012] Preferably, a cylinder is laterally fixedly connected to the outer surface of the side plate, a through groove is laterally opened at the front of the outer surface of the side plate along its length, a clamping seat is laterally slidably connected to the inner surface of the side plate, a connecting block is fixedly connected to the front end of the piston rod of the cylinder, and the inner end of the connecting block extends through the through groove to the inner surface of the side plate and is fixedly connected to the clamping seat.

[0013] Preferably, the device frame is fixedly connected to the inner surface of the clamping seat.

[0014] Preferably, the front surface of the mounting bracket has a through slot that extends horizontally through it, and the front ends of the plurality of guide tubes extend forward through the through slot.

[0015] Preferably, the top and bottom ends of the mounting bracket are both horizontally fixedly connected to connecting horizontal plates, and the upper surfaces of the two connecting horizontal plates are vertically perforated with multiple connecting holes.

[0016] Compared with related technologies, the automated temperature measuring device provided by this invention has the following advantages: This invention provides an automated temperature measuring device that automatically adjusts the thermocouple angle through a motor-driven worm gear transmission mechanism, combined with a cylinder-driven overall forward and backward feed, and a contact detection switch to achieve accurate temperature measurement feedback. It operates fully automatically without manual adjustment, is adaptable to different sample specifications, and is easy to operate, accurately positioned, and responds quickly. The spring pre-tensioning structure keeps the thermocouple and sample in flexible contact, effectively reducing lateral forces and improving temperature measurement stability and position repeatability. The guide tube is made of high-temperature alloy material, which is resistant to high temperatures, thermal stress deformation, and is not easily broken, significantly extending its service life. The skew correction mechanism can correct the skew caused by long-term high-temperature use of the thermocouple, eliminating the need for frequent component replacement and reducing maintenance costs and resource waste. The overall structure is stable and reliable, with high mechanical strength and smooth operation, meeting the high-precision, high-stability, and continuous temperature measurement requirements of fully automated high-temperature tensile testing systems, significantly improving testing efficiency and data accuracy. It is suitable for high-temperature mechanical property testing in aerospace, military, nuclear power, and new material research and development fields. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the automated temperature measuring device provided by the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of the angle adjustment structure of the automated temperature measuring device shown.

[0019] Figure 3 for Figure 1 The diagram shown is a simulation of the angle adjustment of an automated temperature measuring device.

[0020] Figure 4 for Figure 1 The enlarged schematic diagram of part A is shown.

[0021] The following are the labels in the diagram: 1. Side plate, 2. Mounting bracket, 3. Cylinder, 4. Clamping seat, 5. Through groove, 6. Device frame, 7. Motor, 8. Worm gear, 9. Worm wheel, 10. Skew correction seat, 11. Connecting seat, 12. Preload, 13. Guide tube, 14. Contact detection switch. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1A schematic diagram of a preferred embodiment of the automated temperature measuring device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the angle adjustment structure of the automated temperature measuring device shown. Figure 3 for Figure 1 The diagram shown is a simulation of the angle adjustment of an automated temperature measuring device. Figure 4 for Figure 1 The enlarged schematic diagram of part A is shown. An automated temperature measuring device includes: a side plate 1, a mounting bracket 2 fixedly connected to the front end of the side plate 1, a rectangular device frame 6 that can move horizontally on the inner surface of the side plate 1, a skew correction seat 10 that is laterally rotatably connected to the upper and lower parts of the inner surface of the device frame 6, a worm gear structure that can control the skew angle of the two skew correction seats 10 is provided inside the device frame 6, a connecting seat 11 is laterally fixedly connected to the same side surface of the device frame 6 and located between the two skew correction seats 10, a tubular pre-tightening member 12 is fixedly connected to the inside of the connecting seat 11 and the two skew correction seats 10, and a guide tube 13 is laterally slidably connected to the front end of the multiple pre-tightening members 12.

[0024] The worm gear structure includes a worm 8 that is laterally rotatably connected to the middle of the inner cavity of the device frame 6. Worm wheels 9 that mesh with the worm 8 are rotatably connected to the inner cavity of the device frame 6, located above and below the worm 8. A connecting shaft is laterally fixedly connected to one side surface of each of the two worm wheels 9. The other ends of the two connecting shafts can rotatably penetrate one side surface of the device frame 6 and extend outward. The outer ends of the two connecting shafts are fixedly connected to two skew correction seats 10, respectively.

[0025] Each of the multiple pretensioners 12 has a thermocouple inside, and the spring rods of the multiple thermocouples extend into the interior of the corresponding guide tubes 13. Springs are laterally fixed between the rear ends of the multiple thermocouples and the rear ends inside the pretensioners 12.

[0026] A contact detection plate is laterally fixed to the outer end surface of the middle connecting seat 11. A through groove extending along its length is opened through the rear part of the outer surface of the middle pre-tightening member 12. A contact detection switch 14 is laterally fixed to the outer surface of the middle thermocouple. The outer end of the contact detection switch 14 passes through the through groove and extends into the groove of the contact detection plate.

[0027] In actual use, when the sample enters the high-temperature furnace, the system receives an instruction and automatically adjusts the spacing of multiple thermocouples based on the entered gauge length information. During adjustment, the worm gear 8 is rotated to drive the two meshing worm wheels 9. The rotation of the two worm wheels 9, in turn, drives the two skew correction seats 10 via a coupling. The pre-tightening components 12 inside the two skew correction seats 10 rotate synchronously, thereby controlling the upward and downward tilting of the upper and lower thermocouples to adjust the thermocouple spacing to match the length of the parallel section of the sample. Then, the entire device is controlled to move forward. During this process, the guide in the middle... The end of the guide tube 13 will first contact the sample. Since it is slidably connected to the front end of the pre-tightening member 12, it will move backward relative to the entire device during the forward movement of the subsequent device until the thermocouple spring inside the guide tube 13 contacts the sample. After contact, since the device continues to move forward, the thermocouple will also move backward relative to the entire device and the pre-tightening member 12. The contact detection switch 14 at its rear end will also move backward synchronously until the contact detection switch 14 contacts the end of the slot of the contact detection plate. At this time, the contact detection switch 14 sends a signal to the system, the entire device stops moving, the temperature measurement action is completed, and the high-temperature furnace begins to heat up.

[0028] A motor 7 is horizontally fixedly connected to the middle of the rear surface of the device frame 6. The output shaft of the motor 7 rotatably passes through the device frame 6 and is fixedly connected to the rear end of the worm gear 8.

[0029] When the motor 7 is running, the rotation of its output shaft can drive the worm gear 8 to rotate, thereby changing the angle of the upper and lower guide tubes 13. The motor 7 is controlled by the system, thus achieving the effect of automatic operation.

[0030] A cylinder 3 is fixedly connected to the outer surface of the side plate 1 in the transverse direction. A through groove 5 is opened in the front part of the outer surface of the side plate 1 in the transverse direction. A clamping seat 4 is slidably connected to the inner surface of the side plate 1 in the transverse direction. A connecting block is fixedly connected to the front end of the piston rod of the cylinder 3. The inner end of the connecting block extends to the inner surface of the side plate 1 through the through groove 5 and is fixedly connected to the clamping seat 4.

[0031] The device frame 6 is fixedly connected to the inner surface of the clamping seat 4.

[0032] When the piston rod of cylinder 3 extends, it drives the clamping seat 4, which is fixedly connected to the connecting block at the end of the piston rod, to move horizontally. This, in turn, drives the device frame 6, which is fixedly connected to the clamping seat 4, and other structures on it to move horizontally in sync. This enables multiple thermocouples to move horizontally. Cylinder 3 is also controlled by the system to achieve automatic operation.

[0033] The front surface of the mounting bracket 2 has a through slot that extends horizontally through it, and the front ends of multiple guide tubes 13 extend forward through the through slot.

[0034] The top and bottom of the mounting bracket 2 are both horizontally fixed with connecting plates, and the upper surfaces of the two connecting plates are vertically perforated with multiple connecting holes.

[0035] The mounting bracket 2 is provided with multiple connection holes, which facilitates the stable installation of the device on the test system. At the same time, it provides positioning and protection for core components such as the internal guide tube 13 and the pre-tightening component 12, ensuring the overall structural stability and reliable temperature measurement.

[0036] The working principle of the automated temperature measuring device provided by this invention is as follows: In actual use, when the sample enters the high-temperature furnace, the system receives an instruction and automatically adjusts the spacing of multiple thermocouples according to the entered gauge length information. During adjustment, the worm gear 8 is controlled to rotate, thereby driving the two meshing worm wheels 9 to rotate. During the rotation of the two worm wheels 9, the two skew correction seats 10 are driven to rotate through the connecting shaft. The pre-tightening members 12 located inside the two skew correction seats 10 rotate synchronously, thereby controlling the upper and lower thermocouples to tilt upwards and downwards, thus adjusting the thermocouple spacing to match the length of the parallel section of the sample. Then, the entire device is controlled to move forward. During this process, the end of the guide tube 13 in the middle will first contact the sample. Since it is slidably connected to the front end of the pre-tightening member 12, it will move backward relative to the whole device during the forward movement of the subsequent device until the thermocouple spring rod inside the guide tube 13 contacts the sample. After contact, since the device continues to move forward, the thermocouple as a whole will also move backward relative to the whole device and the pre-tightening member 12. The contact detection switch 14 at its rear end will also move backward synchronously until the contact detection switch 14 contacts the end of the slot of the contact detection plate. At this time, the contact detection switch 14 sends a signal to report to the system, the whole device stops moving, the temperature measurement action is completed, and the high temperature furnace begins to heat up.

[0037] Compared with related technologies, the automated temperature measuring device provided by this invention has the following advantages: This invention achieves automatic thermocouple angle adjustment through a transmission mechanism driven by a motor 7, a worm gear 8, and a worm wheel 9; it also coordinates with a cylinder 3 to drive the overall forward and backward feed, and a contact detection switch 14 to provide accurate temperature measurement feedback. The entire process is automated, requiring no manual adjustment, and is suitable for samples of different specifications. It is easy to operate, provides precise positioning, and responds quickly. The spring pre-tensioning structure within the pre-tensioning component 12 ensures a flexible fit between the thermocouple and the sample, effectively reducing lateral forces and improving temperature measurement stability and position repeatability. The guide tube 13 uses a high-temperature... Made of alloy material, it is resistant to high temperature, thermal stress deformation, and is not easily broken, significantly extending its service life. The skew correction seat 10 can correct the skew of the thermocouple caused by long-term high-temperature use, eliminating the need for frequent replacement of parts and reducing maintenance costs and resource waste. The overall structure is supported and fixed by the mounting bracket 2 and the side plate 1, which is stable, reliable, has high mechanical strength, and operates smoothly. It can meet the requirements of fully automatic high-temperature tensile testing systems for high precision, high stability, and continuous temperature measurement, significantly improving test efficiency and data accuracy. It is suitable for high-temperature mechanical property testing in aerospace, military, nuclear power, and new material research and development fields.

[0038] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automated temperature measuring device, characterized in that, Includes a side plate (1), with a mounting bracket (2) fixedly connected to the front end of the side plate (1). A rectangular device frame (6) that can move horizontally is provided on the inner surface of the side plate (1). A skew correction seat (10) is rotatably connected to the upper and lower parts of the inner surface of the device frame (6). A worm gear structure that can control the skew angle of the two skew correction seats (10) is provided inside the device frame (6). A connecting seat (11) is fixedly connected to the same side surface of the device frame (6) and located between the two skew correction seats (10). A tubular pre-tightening member (12) is fixedly connected inside the connecting seat (11) and the two skew correction seats (10). A guide tube (13) is slidably connected to the front end of the multiple pre-tightening members (12).

2. The automated temperature measuring device according to claim 1, characterized in that, The worm gear structure includes a worm (8) that is laterally rotatably connected to the middle of the inner cavity of the device frame (6). The inner cavity of the device frame (6) and the worm gear (9) located above and below the worm (8) are rotatably connected to the worm (8). A connecting shaft is laterally fixedly connected to one side surface of each of the two worm gears (9). The other end of each connecting shaft can rotatably penetrate one side surface of the device frame (6) and extend outward. The outer ends of the two connecting shafts are respectively fixedly connected to the two skew correction seats (10).

3. The automated temperature measuring device according to claim 1, characterized in that, Each of the pretensioners (12) is equipped with a thermocouple, and the spring rods of the thermocouples extend into the interior of the corresponding guide tubes (13). A spring is laterally fixed between the rear end of each thermocouple and the rear end inside the pretensioner (12).

4. The automated temperature measuring device according to claim 1, characterized in that, A contact detection plate is laterally fixed to the outer end surface of the connecting seat (11) in the middle.

5. The automated temperature measuring device according to claim 4, characterized in that, The outer surface of the pre-tightening member (12) in the middle is provided with a through groove extending along its length. The outer surface of the thermocouple in the middle is laterally fixed with a contact detection switch (14). The outer end of the contact detection switch (14) passes through the through groove and extends into the groove of the contact detection plate.

6. The automated temperature measuring device according to claim 2, characterized in that, A motor (7) is horizontally fixedly connected to the middle of the rear surface of the device frame (6). The output shaft of the motor (7) rotatably passes through the device frame (6) and is fixedly connected to the rear end of the worm gear (8).

7. The automated temperature measuring device according to claim 1, characterized in that, A cylinder (3) is fixedly connected to the outer surface of the side plate (1) in the transverse direction. A through groove (5) is opened in the front part of the outer surface of the side plate (1) in the transverse direction. A clamping seat (4) is slidably connected to the inner surface of the side plate (1). A connecting block is fixedly connected to the front end of the piston rod of the cylinder (3). The inner end of the connecting block extends through the through groove (5) to the inner surface of the side plate (1) and is fixedly connected to the clamping seat (4).

8. The automated temperature measuring device according to claim 5, characterized in that, The device frame (6) is fixedly connected to the inner surface of the clamping seat (4).

9. The automated temperature measuring device according to claim 1, characterized in that, The front surface of the mounting bracket (2) is provided with a through slot, and the front ends of the multiple guide tubes (13) extend forward through the through slot.

10. The automated temperature measuring device according to claim 1, characterized in that, The top and bottom of the mounting bracket (2) are both horizontally fixedly connected with connecting horizontal plates, and the upper surfaces of the two connecting horizontal plates are vertically connected with multiple connecting holes.

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