Rotary multi-furnace high-temperature furnace switching table

Abstract

The application relates to the technical field of high-temperature tensile test equipment, and particularly discloses a rotary multi-furnace high-temperature furnace switching table, which comprises a rotary base, the top of the rotary base is provided with a mounting table, a transmission device is arranged between the rotary base and the mounting table, the top of the mounting table is provided with an outer cover, a temperature control meter is arranged on the outer side of the outer cover, and electrical control components are integrated in the inner side of the outer cover; the transmission device comprises a planetary reducer and a servo motor, the output end of the servo motor drives the planetary reducer and the mounting table to rotate. The rotary multi-furnace high-temperature furnace switching table solves the problems of existing rotary switching table positioning drift, running shaking, low efficiency and inconvenient maintenance through rigid transmission, high-precision indexing, multi-station annular layout and full-process automation design, has the advantages of accurate positioning, stable running, high automation degree, safety and reliability, and significantly improved test efficiency, and is suitable for a full-automatic high-temperature tensile test system.

Description

Technical Field

[0001] This invention relates to the field of high-temperature tensile testing equipment technology, specifically a rotary multi-furnace high-temperature furnace switching platform. Background Technology

[0002] In high-temperature tensile testing systems, the high-temperature furnace is a core component affecting testing efficiency. Its heating and holding processes are time-consuming, with a single test potentially taking over an hour, leading to prolonged standby time for the main testing unit and low equipment utilization. To improve testing efficiency, multi-furnace high-temperature tensile testing systems are gradually being adopted. However, existing multi-furnace switching platforms generally suffer from problems such as limited functionality, low automation integration, cumbersome operation procedures, and inadequate safety protection.

[0003] For rotary multi-furnace switching structures, existing technologies suffer from insufficient rigidity of the rotating bearing platform, poor center of gravity and dynamic balance design, and a tendency for center drift and swaying during rotation. This results in poor alignment accuracy between the high-temperature furnace and the stretching spindle, affecting temperature field stability and test data repeatability. Multiple workstations can only achieve simple position switching and cannot efficiently coordinate with clamping, preheating, testing, and cooling processes, making it difficult to form a production line and limiting the overall efficiency improvement of the system. When multiple high-temperature furnaces are arranged around each other, heat accumulates in the central area, easily causing heat aging and decreased precision of precision components such as drive motors, encoders, and bearings, and lacks effective thermal isolation and heat dissipation design. Most switching stations are fixed-position structures with poor adaptability and expandability. Maintenance of a single furnace requires disassembly of a large number of related structures, making the operation complex and the downtime long. Summary of the Invention

[0004] The purpose of this invention is to provide a rotary multi-furnace high-temperature furnace switching platform to overcome the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary multi-furnace high-temperature furnace switching platform, comprising a rotating base, an mounting platform on the top of the rotating base, and a transmission device between the two, an outer cover on the top of the mounting platform, a temperature controller on the outside of the outer cover, and electrical control components integrated inside the outer cover;

[0006] The transmission device includes a planetary reducer and a servo motor. The output of the servo motor drives the planetary reducer and the mounting platform to rotate.

[0007] As described above, the rotating base provides high rigidity support, the transmission device enables smooth rotation drive, the outer cover protects internal components, and the temperature controller enables centralized temperature monitoring. The whole structure constitutes a high-precision and high-stability rotating switching main structure.

[0008] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, an automated high-temperature furnace device is installed on the top of the platform, and a high-temperature furnace is provided in the middle of the automated high-temperature furnace device, and a loading chain is provided inside the high-temperature furnace.

[0009] The sample is connected to the middle of the loading chain.

[0010] In the above description, the automated high-temperature furnace device achieves fully automated operation. The high-temperature furnace provides the high-temperature environment required for the test, and the loading chain is used to fix the sample to ensure the stable conduct of the test.

[0011] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, the planetary reducer is connected to the mounting platform by bolts, and the output end of the planetary reducer is connected to the mounting platform by bolts.

[0012] As mentioned above, the rigid bolt connection improves transmission accuracy, reduces rotational backlash and wobbling, and ensures smooth rotation and accurate positioning of the mounting platform.

[0013] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, a control module is provided inside the rotating base, and the controller module and servo motors are electrically connected.

[0014] In the above, the control module precisely controls the servo motor, realizing automatic adjustment of rotation speed and start / stop position, thereby improving the system's intelligence level.

[0015] In a rotary multi-furnace high-temperature furnace switching station according to an embodiment of the present invention, a high-precision encoder is installed at the output end of the servo motor, and the high-precision encoder is electrically connected to the control module.

[0016] In the above, the high-precision encoder provides real-time feedback on the rotational position, ensuring accurate indexing of the mounting platform and high repeatability, thus solving the positioning drift problem in existing technologies.

[0017] In a rotary multi-furnace high-temperature furnace switching station according to an embodiment of the present invention, the electrical control components include a programmable logic controller, a servo driver, a relay, and a circuit breaker.

[0018] The above components constitute a complete safety electrical control system, enabling motion control, signal interlocking, overload protection, and circuit safety protection, thereby improving the reliability of equipment operation.

[0019] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, the automated high-temperature furnace device includes an X-axis moving mechanism, a Y-axis moving mechanism is installed on the top of the X-axis moving mechanism, and an automatic temperature measuring device and an automatic opening and closing device are installed at the end of the Y-axis moving mechanism.

[0020] The high-temperature furnace is fixed to the middle of the automatic opening and closing device by bolts, and the automatic opening and closing device drives the high-temperature furnace to open and close automatically.

[0021] The end of the Y-axis moving mechanism is equipped with a clamping device and a pre-tightening device.

[0022] In the above, the X-axis moving mechanism and the Y-axis moving mechanism achieve precise alignment; the automatic opening and closing device enables the automatic opening and closing of the high-temperature furnace; the automatic temperature measuring device completes the sample temperature acquisition; and the clamping device and the pre-tightening device achieve integrated clamping and pre-tightening, improving the degree of automation and test accuracy.

[0023] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, several sets of installation areas are provided on the outer side of the outer cover, and an automated high-temperature furnace device is installed inside the installation area.

[0024] As mentioned above, the multiple installation areas achieve a multi-furnace ring layout, supporting parallel assembly line operations for clamping, preheating, testing, and cooling, which greatly improves testing efficiency.

[0025] In a rotary multi-furnace high-temperature furnace switching platform according to an embodiment of the present invention, the X-axis moving mechanism drives the high-temperature furnace and the loading chain to move along the direction of the installation area opening.

[0026] The above features enable automatic alignment between the high-temperature furnace and the stretching spindle, facilitating rapid entry and exit of samples from the workstation, reducing manual intervention, and improving switching efficiency.

[0027] In a rotary multi-furnace high-temperature furnace switching table according to an embodiment of the present invention, the clamping device and the pre-tightening device cooperate with each other to apply a controllable pre-tightening force to the loading chain, ensuring the coaxiality of the sample and protecting the thermocouple in the automatic temperature measuring device.

[0028] In the above, the controllable preload eliminates assembly gaps, ensures sample coaxiality, and improves the accuracy of test data; at the same time, it protects the thermocouple from being deflected, improving temperature measurement stability and test success rate.

[0029] Compared with the prior art, the beneficial effects of the present invention are: a rotary multi-furnace high-temperature furnace switching platform:

[0030] 1. The use of a servo motor, planetary reducer and high-precision encoder, along with rigid bolt connection, ensures that the mounting platform rotates smoothly without shaking or center drift, guaranteeing accurate and repeatable positioning of the high-temperature furnace and the tensile spindle, and significantly improving the accuracy and repeatability of test data.

[0031] 2. The automated high-temperature furnace device integrates an X-axis moving mechanism, a Y-axis moving mechanism, an automatic opening and closing device, an automatic temperature measuring device, a clamping device, and a pre-tightening device, realizing full automation of the sample clamping, furnace opening and closing, temperature measurement, pre-tightening, and alignment process, greatly reducing the intensity of manual operation.

[0032] 3. The outer casing has multiple installation areas, which can accommodate multiple high-temperature furnaces at the same time, enabling the clamping, preheating, testing and cooling processes to be carried out simultaneously, making the standby time of the test host close to zero and significantly improving the equipment utilization rate.

[0033] 4. The rotating base provides high rigidity support, and the mounting platform is rigidly connected to the transmission components. The overall structure is stable and can support multiple heavy-duty high-temperature furnaces. It can operate for a long time without deformation or displacement. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a rotary multi-furnace high-temperature furnace switching platform provided in one embodiment of this application;

[0035] Figure 2 This is a partial structural schematic diagram of the present invention;

[0036] Figure 3 This is a partial structural schematic diagram of the present invention;

[0037] Figure 4 This is a schematic diagram of the rotating base and transmission device in this invention;

[0038] Figure 5 yes Figure 4 A schematic diagram of a partial side profile;

[0039] Figure 6 This is a schematic diagram of the automated high-temperature furnace device in this invention.

[0040] In the picture:

[0041] 1. Rotating base; 2. Mounting platform; 3. Transmission device; 31. Planetary reducer; 32. Servo motor; 4. Outer cover; 5. Temperature controller; 6. Automated high-temperature furnace device; 61. X-axis moving mechanism; 62. Y-axis moving mechanism; 63. Automatic temperature measuring device; 64. Automatic opening and closing device; 65. Clamping device; 66. Pre-tightening device; 7. High-temperature furnace; 8. Loading chain. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Example: Figure 1-6 As shown, a rotary multi-furnace high-temperature furnace switching platform includes a rotating base 1, a mounting platform 2, a transmission device 3, an outer cover 4, a temperature controller 5, an automated high-temperature furnace device 6, a high-temperature furnace 7, and a loading chain 8.

[0044] In this embodiment, the rotating base 1 serves as the basic support and rotational reference for the entire machine. It is fixed to the test platform or ground with a high-rigidity structure and integrates a slewing bearing structure inside to bear all the load above and ensure that the rotation center does not drift, providing a stable, reliable and high-precision slewing foundation for the entire system.

[0045] The rotating base 1 is equipped with an installation platform 2. The top of the installation platform 2 is equipped with standardized mechanical interfaces, electrical interfaces and gas interfaces, which are used to stably install multiple sets of automated high-temperature furnace devices 6 and ensure the relative position accuracy between each workstation.

[0046] A transmission device 3 is installed between the rotating base 1 and the mounting platform 2. The transmission device 3 consists of a planetary reducer 31 and a servo motor 32. The output end of the servo motor 32 is connected to the input end of the planetary reducer 31. The output end of the planetary reducer 31 is rigidly connected to the mounting platform 2 through bolts. Driven by the servo motor 32, the mounting platform 2 is driven to make a smooth and precise rotation around a fixed rotation center, realizing multi-station switching.

[0047] In this embodiment, an outer cover 4 is fixedly installed on the top of the mounting platform 2. The outer cover 4 is a sheet metal protective structure. A temperature controller 5 is installed in a conspicuous position on the outside of the outer cover 4. The temperature controller 5 is connected to the temperature control system of each high-temperature furnace 7 and is used to centrally display the real-time temperature, set temperature and operating status of each furnace, so as to facilitate intuitive monitoring by the operators.

[0048] The outer casing 4 integrates electrical control components, including programmable logic controllers, servo drivers, relays, circuit breakers, etc., which constitute the control and drive core of the system, realizing motion control, signal acquisition, logic judgment and safety protection.

[0049] In this embodiment, a control module is installed inside the rotating base 1. The control module is electrically connected to the servo motor 32 and also electrically connected to the high-precision encoder installed at the output end of the servo motor 32, forming a position closed-loop control system. The high-precision encoder collects rotation angle, speed, and position signals in real time and feeds them back to the control module. The control module performs precise speed adjustment, positioning, and start / stop of the servo motor 32 according to a preset program, ensuring accurate rotation indexing and high repeatability of the mounting platform 2. It can achieve precise start / stop and positioning of the mounting platform at multiple preset work positions, such as four 90-degree positions. Its function is to drive the entire mounting platform and its load to rotate and accurately stop at each working position, fundamentally solving the problems of rotational drift, swaying, and inaccurate positioning.

[0050] Among them, several sets of installation areas are opened along the circumference on the outer side of the outer cover 4. Each set of installation areas is equipped with an automated high-temperature furnace device 6, forming a multi-station ring layout, which can realize parallel operation of clamping, preheating, testing, cooling and other processes.

[0051] In this embodiment, the automated high-temperature furnace device 6 includes an X-axis moving mechanism 61, a Y-axis moving mechanism 62, an automatic temperature measuring device 63, an automatic opening and closing device 64, a clamping device 65, and a pre-tightening device 66.

[0052] The automatic opening and closing device 64 is bolted to the high-temperature furnace 7. Driven by an electrical control signal, the automatic opening and closing device 64 can smoothly and automatically open and close the high-temperature furnace 7, realizing the rapid placement of the loading chain 8 and the sample, sealed heating, and safe removal. The loading chain 8 is set inside the high-temperature furnace 7. The middle part of the loading chain 8 is used to clamp the test sample and is the core load-bearing component of the high-temperature tensile test.

[0053] The working principle of this embodiment is as follows:

[0054] First, after the system is powered on, the control module performs a self-test, and the servo motor 32, high-precision encoder, electrical control components, and temperature controller 5 all enter standby mode. The rotating base 1 and the mounting platform 2 maintain their initial positions, and each automated high-temperature furnace device 6 returns to its original position. The high-temperature furnace 7, automatic temperature measuring device 63, clamping device 65, and pre-tightening device 66 are all in standby mode.

[0055] Secondly, the automatic opening and closing device 64 receives the control signal and drives the high-temperature furnace 7 to open automatically. The external conveying mechanism delivers the loading chain 8 containing the sample into the center position of the high-temperature furnace 7. Subsequently, the clamping device 65 operates to clamp the loading chain 8 from both sides, achieving a firm positioning of the loading chain 8, preventing loosening or displacement during the test, and ensuring that the sample is coaxial with the tensile spindle.

[0056] Next, after the clamping device 65 clamps the sample, the pre-tightening device 66 is activated, cooperating with the clamping device 65 to apply a controllable and stable pre-tightening force to the loading chain 8. This pre-tightening force can eliminate assembly gaps, further ensure the coaxiality of the sample, and improve the accuracy of test data; at the same time, it effectively protects the thermocouple inside the automatic temperature measuring device 63, preventing the sample or loading chain 8 from deviating or damaging the thermocouple, and ensuring stable and reliable temperature measurement.

[0057] Next, after pre-tightening, the automatic opening and closing device 64 drives the high-temperature furnace 7 to close smoothly, completely sealing the sample inside the furnace and ensuring a stable temperature field. Subsequently, the automatic temperature measuring device 63 activates, driving the thermocouple to move to the sample gauge position and fit tightly, starting to collect the sample temperature in real time, and transmitting the temperature signal to the temperature controller 5 and the control module to achieve accurate temperature monitoring and closed-loop control.

[0058] Next, the X-axis moving mechanism 61 receives a control signal and drives the high-temperature furnace 7, the loading chain 8, and the overall automated high-temperature furnace device 6 to move horizontally along the opening direction of the installation area, achieving rapid and precise alignment with the tensile spindle. The Y-axis moving mechanism 62 simultaneously adjusts the height position to align the high-temperature furnace 7 with the sample testing section, preparing for the tensile test.

[0059] Finally, when a workstation enters the testing state, the control module controls the servo motor 32 to start, which drives the mounting platform 2 to rotate via the planetary reducer 31, precisely switching the next automated high-temperature furnace device 6 to the target position. A high-precision encoder provides real-time position feedback, ensuring immediate locking after rotation to the correct position, preventing wobbling or overtravel. Multiple devices can independently perform clamping, preheating, testing, and cooling processes, forming a continuous production line operation. This reduces the standby time of the main testing unit to near zero, significantly improving equipment utilization and testing efficiency.

[0060] It should be noted that during the entire operation, the electrical control components and control modules monitor the rotation position, motor current, temperature signal, and stroke signal in real time. They integrate multiple safety mechanisms such as rotation limit, overload protection, abnormal temperature alarm, collision warning, and emergency stop interlock. Once an abnormality occurs, the machine will stop immediately to ensure the safety of the equipment, samples, and personnel.

[0061] This embodiment achieves high-precision rotational switching of multiple furnace positions, fully automated operation, and parallel operation of multiple processes through the coordinated work of the rotating base 1, mounting platform 2, transmission device 3, outer cover 4, temperature controller 5, and automated high-temperature furnace device 6. It effectively solves the problems of poor positioning accuracy, unstable operation, poor heat dissipation, difficult maintenance, and low efficiency of existing technologies.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary multi-furnace high-temperature furnace switching platform, characterized in that, It includes a rotating base (1), a mounting platform (2) is provided on the top of the rotating base (1), and a transmission device (3) is provided between the two. An outer cover (4) is installed on the top of the mounting platform (2), and a temperature controller (5) is installed on the outside of the outer cover (4). Electrical control components are integrated inside the outer cover (4). The transmission device (3) includes a planetary reducer (31) and a servo motor (32), the output of which drives the planetary reducer (31) and the mounting platform (2) to rotate.

2. The rotary multi-furnace high-temperature furnace switching platform according to claim 1, characterized in that: An automated high-temperature furnace device (6) is installed on the top of the mounting platform (2), and a high-temperature furnace (7) is provided in the middle of the automated high-temperature furnace device (6). A loading chain (8) is provided inside the high-temperature furnace (7). The sample is connected to the middle of the loading chain (8).

3. A rotary multi-furnace high-temperature furnace switching platform according to claim 1, characterized in that: The planetary reducer (31) is connected to the mounting platform (2) by bolts, and the output end of the planetary reducer (31) is connected to the mounting platform (2) by bolts.

4. A rotary multi-furnace high-temperature furnace switching platform according to claim 1, characterized in that: The rotating base (1) is equipped with a control module, and the controller module and the servo motor (32) are electrically connected.

5. A rotary multi-furnace high-temperature furnace switching platform according to claim 4, characterized in that: The output end of the servo motor (32) is equipped with a high-precision encoder, and the high-precision encoder is electrically connected to the control module.

6. A rotary multi-furnace high-temperature furnace switching platform according to claim 1, characterized in that: The electrical control components include programmable logic controllers, servo drivers, relays, and circuit breakers.

7. A rotary multi-furnace high-temperature furnace switching platform according to claim 2, characterized in that: The automated high-temperature furnace device (6) includes an X-axis moving mechanism (61), a Y-axis moving mechanism (62) is installed on the top of the X-axis moving mechanism (61), and an automatic temperature measuring device (63) and an automatic opening and closing device (64) are installed at the end of the Y-axis moving mechanism (62). The high-temperature furnace (7) is fixed in the middle of the automatic opening and closing device (64) by bolts, and the automatic opening and closing device (64) drives the high-temperature furnace (7) to open and close automatically; The Y-axis moving mechanism (62) is equipped with a clamping device (65) and a pre-tightening device (66) at its end.

8. A rotary multi-furnace high-temperature furnace switching platform according to claim 7, characterized in that: The outer cover (4) has several sets of installation areas on its outer side, and an automated high-temperature furnace device (6) is installed inside the installation area.

9. A rotary multi-furnace high-temperature furnace switching platform according to claim 8, characterized in that: The X-axis moving mechanism (61) drives the high-temperature furnace (7) and the loading chain (8) to move along the direction of the installation area opening.

10. A rotary multi-furnace high-temperature furnace switching platform according to claim 7, characterized in that: The clamping device (65) and the pre-tightening device (66) cooperate with each other to apply a controllable pre-tightening force to the loading chain (8), ensuring the coaxiality of the sample and providing protection for the thermocouple in the automatic temperature measuring device (63).

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