A timing temperature control curing device for thread glue
By designing a timed temperature-controlled curing device for threadlocker adhesive, the on/off state of the heating device is controlled in real time. This solves the problems of equipment resource shortage and extended debugging cycle caused by the room temperature curing of sensor screws in traditional servo valves. It achieves efficient and precise curing of threadlocker adhesive, improving the assembly and debugging efficiency and quality of servo valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN FLIGHT SELF CONTROL INST OF AVIC
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional servo valve sensor screws require anaerobic adhesive to be applied and cured at room temperature, which necessitates a test bench process. This leads to limited equipment resources, extended debugging cycles, increased risks of unnecessary disassembly and contamination, and negatively impacts debugging efficiency and quality.
Design a timed and temperature-controlled curing device for threadlocker, including a heating jacket, a hot air nozzle, a heating device, and a temperature and time controller. The device measures and feeds back the temperature in real time through a temperature sensor, controls the on/off state of the heating device, and achieves timed and temperature-controlled curing of the threadlocker.
This technology enables online curing of threadlocker adhesive for servo valves, reducing operation time, eliminating the need for disassembly and specialized equipment, improving debugging efficiency and product quality, and ensuring curing accuracy and stability.
Smart Images

Figure CN224341810U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aviation hydraulic servo valve assembly and adjustment technology, and in particular relates to a timed and temperature-controlled curing device for threadlocker. Background Technology
[0002] Threaded connections are one of the most common connection types in mechanical assembly. Due to their simplicity, reliability, and ease of assembly and disassembly, they are widely used in the aerospace field. The servo valve sensor core and linkage assembly are connected by threads, with threadlocker applied to prevent loosening.
[0003] Traditionally, anaerobic adhesive is applied to the screws of servo valve sensors, which then require room-temperature curing on a test bench. This leads to a shortage of debugging equipment resources and a longer debugging cycle. If the screws are removed from the test bench for room-temperature curing or cured using specialized equipment, unnecessary repeated disassembly and assembly are increased, along with the possibility of product contamination. This approach results in a waste of equipment, manpower, and time, impacting the efficiency and quality of servo valve sensor zero-position debugging. Utility Model Content
[0004] This invention provides a timed and temperature-controlled curing device for threadlocker, which has high curing efficiency, good precision control, and stable and reliable quality, and can meet the needs of mass production and debugging of servo valves.
[0005] This utility model provides a timed and temperature-controlled curing device for threadlocker, comprising: a heating jacket 1, a hot air nozzle 2, a heating device 3, a temperature controller 4, a time controller 5, a temperature sensor 6, and a power supply device 7.
[0006] The heating device 3 is equipped with a hot air nozzle 2, and a heating sleeve 1 is installed on the hot air nozzle 2. The heating sleeve 1 is fitted onto the threaded adhesive of the structure to be cured. A temperature sensor 6 is installed on the heating sleeve 1 to detect the temperature inside the heating sleeve 1.
[0007] Temperature controller 4 is connected to heating device 3 and temperature sensor 6, and is used to control heating device 3 according to the temperature detected by temperature sensor 6;
[0008] The time controller 5 is connected to the temperature controller 4 and the power supply 7. The power supply 7 is used to supply power to the time controller 5, and the time controller 5 is used to control whether the temperature controller 4 is in working state.
[0009] The heating jacket 1 is provided with a heat preservation area 12 and an expansion area 13. The heat preservation area 12 is set according to the shape of the structure to be cured. The expansion area 13 is funnel-shaped, with the smaller diameter end connected to the hot air nozzle 2 and the larger diameter end connected to the heat preservation area 12.
[0010] The hot air nozzle 2 has a stepped cylindrical structure, which is divided into a connection part 21, an air heating zone 22, a contraction zone 23 and a conduction zone 24 according to the diameter from large to small.
[0011] The connection part 21 is used to connect the heating device 3, and the conduction area 24 is connected to the extension area 13.
[0012] Optionally, the temperature controller 4 is used to control the heating device 3 according to the preset maximum and minimum temperatures and the temperature detected by the temperature sensor 6.
[0013] Optionally, the heating jacket 1 is provided with a flange ring on the outside, and the flange ring is provided with multiple connection holes 11. The heating jacket 1 and the part to be cured are connected by bolts through the connection holes 11.
[0014] Optionally, the smaller diameter end of the extension area 13 is provided with an internal thread 14, which is connected to the external thread 24 of the hot air nozzle 2.
[0015] Optionally, the insulation area 12 of the heating jacket 1 is provided with a mounting hole 15, the temperature sensor 6 is installed in the mounting hole 15, and the mounting hole 15 is provided with putty.
[0016] Optionally, the outer ring of the heating jacket 1 is provided with a sealing ring mounting groove 16.
[0017] Optionally, the power supply of the heating device 3 is directly connected to the temperature controller 4, and the temperature controller 4 controls the on / off state of the heating device 3.
[0018] This invention provides a timed and temperature-controlled curing device for threadlocker adhesive, which can be used for online curing of threadlocker adhesive in servo valves. During use, the device sets the control range and time for the air temperature of the curing area based on the inherent characteristics of the threadlocker adhesive. A temperature sensor measures the air temperature of the curing area in real time and feeds it back to a temperature controller. The temperature controller controls the on / off state of the heating device to achieve the timed and temperature-controlled curing effect of the threadlocker adhesive. This invention allows for direct curing of the threadlocker adhesive after the servo valve has been debugged, eliminating the need for disassembly followed by room temperature curing or the use of specialized heating and insulation equipment, effectively reducing operation time. Simultaneously, it effectively controls the servo valve production process, avoiding the risk of introducing foreign objects through unnecessary disassembly, and greatly improving the assembly and debugging efficiency and product quality of the servo valve. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of a timed and temperature-controlled curing device for thread-locking adhesive according to the present invention.
[0021] Figure 2 This is a schematic diagram of the structure of a timed and temperature-controlled curing device for threadlocker according to this utility model;
[0022] Figure 3 This is a front view of heating sleeve 1;
[0023] Figure 4 This is a cross-sectional view of heating jacket 1;
[0024] Figure 5 This is a schematic diagram of the sealing inner hole that matches the sealing ring mounting groove 16;
[0025] Figure 6 This is a front view of the heat nozzle 2;
[0026] Figure 7 This is a cross-sectional view of the hot air nozzle 2;
[0027] Explanation of reference numerals in the attached figures:
[0028] 1-Heating jacket, 2-Hot air nozzle, 3-Heating device, 4-Temperature controller, 5-Time controller, 6-Temperature sensor (including data transmission line), 7-Power supply, 8-Sealed inner hole;
[0029] 11-Connecting hole, 12-Insulation area, 13-Extension area, 14-Internal thread, 15-Mounting hole, 16-Sealing ring mounting groove;
[0030] 21-Connection area, 22-Air heating zone, 23-Contraction zone, 24-External thread, 25-Conduction zone. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0032] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific arrangements and methods set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and apparatus without departing from the spirit of this utility model. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.
[0033] This invention provides a timed and temperature-controlled curing device for threadlocker. A temperature sensor measures the temperature of the air at the curing location in real time and feeds the measured value back to the temperature controller. The temperature controller issues a control command based on the measured air temperature to control the on / off state of the heating device to change the air temperature at the curing location. The time controller controls the operation of the entire temperature control system and cuts off the entire circuit after the set time is reached, thereby achieving the timed and temperature-controlled curing effect of the threadlocker.
[0034] See Figure 1-2 This utility model consists of a heating jacket 1, a hot air nozzle 2, a heating device 3, a temperature controller 4, a time controller 5, a temperature sensor 6, and a power supply 7. The heating jacket 1, hot air nozzle 2, heating device 3, and temperature controller 4 form a temperature control system, while the time controller 5 is a time control system.
[0035] The temperature control system sets the corresponding temperature control range according to the characteristic curve of the thread-locking adhesive. The temperature range to be controlled is set in the temperature controller 4. This temperature range has a high temperature and a low temperature, which is the data basis for the operation of the entire temperature control system.
[0036] refer to Figure 3-7 The heating jacket 1 is connected to the curing area via bolts through the connecting hole 11. The insulation area 12 in the middle of the heating jacket and the curing structure are designed to completely enclose the entire curing area. The expansion area 13 is a funnel-shaped area, which allows the heated air to better expand into the insulation area 13, enabling better and more uniform heating of the surrounding air. The internal thread 14 of the heating jacket 1 is connected to the external thread 24 of the hot air nozzle 2 to ensure the strength of the structure. A mounting hole 15 is provided for placing the temperature sensor 6, and the size of the hole depends on the sensor size.
[0037] When the structure to be cured is a servo valve sensor screw, considering the sealing effect of the overall structure, a sealing ring mounting groove 16 is set to connect with the sealing inner hole 8 of the structure to be cured after the sealing ring is installed. The mounting hole 15 is sealed with putty or other materials after the sensor is installed.
[0038] Temperature sensor 6 is installed in the insulation area 12 of heating jacket 1 to measure the air temperature inside heating jacket 1 in real time, and transmits the test results to temperature controller 4 for decision-making via data transmission line.
[0039] The connecting part 21 of the hot air nozzle 2 is connected to the heating device 3 with a clearance fit, which facilitates the quick installation and disassembly of the heating device 3. The length and area of the contact part have sufficient strength to support each other, which can effectively support the overall weight of the heating device 3 and ensure the stability of the heating device 3 during the operation of the entire device. The heating device 3 heats the air in the air heating zone 22 of the hot air nozzle 2, and transmits the hot air generated by the heating device 3 to the heating jacket 1 at a uniform speed through the contraction zone 23 and the conduction zone 24, so as to achieve the effect of heating the air of the entire device.
[0040] The connection part 21 of the hot air nozzle 2 can be designed to adapt to different types of heating devices (such as hot air guns) according to actual needs.
[0041] The power supply of the heating device 3 is directly connected to the temperature controller 4. The temperature controller 4 controls the on / off state of the heating device 3, thereby controlling whether the air is heated or not, thus changing the temperature of the curing location.
[0042] The time controller 5 determines the running time of the entire device based on the characteristics of the thread adhesive and the selected temperature range, thereby achieving the effect of timed temperature control.
[0043] When using this utility model, firstly according to Figure 2 The schematic diagram of the structure of the threadlocker curing device with timed temperature control shows that the components are connected, and then the temperature range and temperature control time are selected according to the characteristic curve of the threadlocker. The upper and lower limits of the temperature are set on the temperature controller 4, and the running time of the entire device is set on the time controller 5. The entire device starts to run, and the heating device starts heating by default.
[0044] Temperature sensor 6 measures the air temperature inside heating jacket 1 and feeds the temperature value back to temperature controller 4. If the temperature is lower than the lower limit of the set temperature, temperature controller 4 turns on the power to heating device 3, and heating device 3 continues to work until the air temperature reaches the lower limit of the set temperature. At this time, the air temperature continues to rise. If the temperature exceeds the upper limit of the set temperature, temperature controller 4 cuts off the power to heating device 3, and heating device 3 stops working. The air temperature inside heating jacket 1 begins to gradually decrease. When the temperature is lower than the lower limit of the set temperature, temperature controller 4 turns on the power to heating device 3, and heating device 3 continues to work, heating the air to the required temperature.
[0045] By repeating the above steps, precise temperature control can be achieved. When the time reaches the time set by the time controller 5, the power supply to the entire device is disconnected, and the timed temperature control of the thread adhesive is completed.
[0046] In this invention, the temperature controller 4 of the curing device controls the heating device 3 to heat or pause heating of the curing area by reading the temperature reading of the temperature sensor 6, precisely controlling the temperature of the cured structure. The time controller 5 controls the running time of the entire device by setting the time. The heating device 3, temperature controller 4, and temperature sensor 6 form a complete closed-loop control, precisely controlling the air temperature at the curing location. The time controller 5 is connected in series with the entire closed-loop device to control the on / off state of the entire temperature control system, ensuring the accuracy of temperature control time. The heating sleeve 1, through its tactile design, can effectively conform to the overall appearance of the cured structure and is connected by a simple thread, allowing for localized and uniform heating of the cured structure. A small hole is opened on the outer wall of the heating sleeve 1 for inserting the temperature sensor and connecting the wire to the temperature controller 4. The hot air nozzle 2 is connected to the heating sleeve 1 through a threaded structure, allowing for convenient and quick connection with reliable overall support strength. The hot air nozzle 2 has an open interface, which can be connected to heating devices of different structural forms, facilitating localized heating of the air. This invention can achieve the curing requirements of thread-locking adhesive in different structures by changing the geometry of the heating jacket, and can also meet the curing requirements of different types of adhesives. After extensive testing and verification, this device has been used to cure thread-locking adhesive in various shapes and structures with obvious results, greatly improving the debugging efficiency and quality of servo valves.
[0047] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0048] The above-described embodiments are merely preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present utility model patent. It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present utility model, and these modifications or substitutions should be included within the protection scope of the present utility model.
Claims
1. A timed and temperature-controlled curing device for threadlocker, characterized in that, include: Heating jacket (1), hot air nozzle (2), heating device (3), temperature controller (4), time controller (5), temperature sensor (6), power supply device (7); A hot air nozzle (2) is provided on the heating device (3), and a heating sleeve (1) is provided on the hot air nozzle (2). The heating sleeve (1) is fitted onto the threaded adhesive of the structure to be cured. A temperature sensor (6) is provided on the heating sleeve (1) to detect the temperature inside the heating sleeve (1). The temperature controller (4) is connected to the heating device (3) and the temperature sensor (6) and is used to control the heating device (3) according to the temperature detected by the temperature sensor (6); The time controller (5) is connected to the temperature controller (4) and the power supply (7). The power supply (7) is used to supply power to the time controller (5), and the time controller (5) is used to control whether the temperature controller (4) is in working state. The heating jacket (1) is provided with a heat preservation area (12) and an expansion area (13). The heat preservation area (12) is set according to the shape of the structure to be cured. The expansion area (13) is trumpet-shaped, with the smaller diameter end connected to the hot air nozzle (2) and the larger diameter end connected to the heat preservation area (12). The hot air nozzle (2) has a stepped cylindrical structure, which is divided into a connection part (21), an air heating zone (22), a contraction zone (23) and a conduction zone (25) according to the diameter from large to small. The connection part (21) is used to connect the heating device (3), and the conduction area (25) is connected to the expansion area (13).
2. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The temperature controller (4) is used to control the heating device (3) according to the preset maximum and minimum temperatures and the temperature detected by the temperature sensor (6).
3. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The heating jacket (1) is provided with a flange ring on the outside, and multiple connection holes (11) are provided on the flange ring. The heating jacket (1) and the part to be cured are connected by bolts through the connection holes (11).
4. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The smaller diameter end of the extension area (13) is provided with an internal thread (14) which is connected to the external thread (24) of the hot blow nozzle (2).
5. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The heating jacket (1) has an installation hole (15) in its heat preservation area (12), and a temperature sensor (6) is installed in the installation hole (15). The installation hole (15) is filled with putty.
6. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The outer ring of the heating jacket (1) is provided with a sealing ring mounting groove (16).
7. The timed and temperature-controlled curing device for threadlocker according to claim 1, characterized in that, The power supply of the heating device (3) is directly connected to the temperature controller (4), and the temperature controller (4) controls the on / off state of the heating device (3).