Heating fixture

Abstract

The utility model discloses a kind of heating fixtures, comprising: upper clamp plate, the first side wall for clamping plate object;Lower clamp plate, comprising: first clamping part, the first side wall for clamping plate object;Second clamping part, between the first clamping part and third clamping part, for covering the end wall of the plate object;Third clamping part, for clamping the second side wall of the plate object, the first side wall and second side wall are the opposite surface of the plate object, the proximal end of the upper clamp plate and the first clamping part is hinged;Elastic reset device, configured to exert elastic force on the upper clamp plate and the lower clamp plate, to make upper clamp plate and the lower clamp plate keep clamping closed state;Temperature control module, comprising: heating element, set in the upper clamp plate and / or lower clamp plate, for heating the plate object;The utility model solves the problems of low heating efficiency, insufficient clamping accuracy, poor curing quality and the like of conventional fixtures.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, specifically a heating clamp. Background Technology

[0002] Door sealing sleeves, as an indispensable component of aircraft door systems, are core elements ensuring the sealing performance and safety of door openings. They fit tightly against the door edges, providing a reliable sealing barrier for the aircraft under extreme environmental conditions, ensuring stable cabin pressure, temperature control, and passenger safety.

[0003] There are many problems that cannot be ignored in the existing heating, clamping and curing process of the hatch edge sealing sleeve.

[0004] Regarding clamping accuracy, existing clamping devices often suffer from problems such as insecure clamping or inaccurate positioning. During processing, the hatch sealing sleeve is prone to displacement due to insecure clamping, leading to a decrease in processing accuracy and an inability to guarantee product quality.

[0005] There are also significant shortcomings in terms of curing quality. On the one hand, the temperature control precision is insufficient, easily resulting in curing temperatures that are too high or too low. Excessive temperature may cause aging and performance degradation of the door sealing material; excessively low temperature will result in incomplete curing and weak adhesion. On the other hand, curing time is difficult to control accurately; both excessively long and short curing times will affect the final quality of the door sealing, making it prone to cracking and detachment during use. Utility Model Content

[0006] The purpose of this utility model is to provide a heating fixture to solve the problems of low heating efficiency, insufficient clamping accuracy, and poor curing quality of traditional fixtures.

[0007] To achieve the above objectives, this utility model provides a heating clamp, comprising: Upper clamping plate, used to hold the first sidewall of a plate-shaped object; Lower clamping plate, including: The first clamping part is used to clamp the first sidewall of the plate-shaped object; The second clamping part is located between the first clamping part and the third clamping part, and is used to cover the end wall of the plate-shaped object; The third clamping part is used to clamp the second sidewall of the plate-shaped object, the first sidewall and the second sidewall are the opposing surfaces of the plate-shaped object, and the upper clamping plate is hinged to the proximal end of the first clamping part; An elastic reset device is configured to apply an elastic force to the upper clamping plate and the lower clamping plate to keep the upper clamping plate and the lower clamping plate in a clamped closed state; Temperature control module, including: A heating element is disposed on the upper clamping plate and / or the lower clamping plate for heating the plate-shaped object; A temperature sensor is used to detect the temperature of the plate-shaped object; A temperature controller is electrically connected to the heating element and the temperature sensor. The temperature controller is used to control the working state of the heating element according to the feedback signal of the temperature sensor so as to maintain the temperature of the clamping area within a preset range.

[0008] Furthermore, the first clamping part of the lower clamping plate extends horizontally, the second clamping part is set at an angle of 75°-100° with the first clamping part, and the third clamping part is located above the first clamping part and extends horizontally.

[0009] Furthermore, the heating element is a heating wire, and the upper clamping plate and the lower clamping plate are provided with multiple channels for placing the heating wire. The heating wire is evenly distributed in the channels inside the clamping plates in a serpentine path.

[0010] Furthermore, the upper clamping plate has a first groove on both sides, and a first sealing element is provided in the first groove. The lower clamping plate has a second groove on both sides, and a second sealing element is provided in the second groove. The first sealing element and the second sealing element are used to seal the channel. The channel opening end of the channel located at the same end is located at the bottom of the groove.

[0011] Furthermore, the elastic reset device includes: a first mounting plate, a second mounting plate, a pin, and a torsion spring. The first mounting plate is disposed on the upper clamping plate, and the second mounting plate is disposed on the lower clamping plate. The first mounting plate is provided with a hinge groove, and the extension section of the second mounting plate is hinged to the hinge groove by the pin. The torsion spring is sleeved on the pin, and the first working end of the torsion spring abuts against the first mounting plate, and the second working end abuts against the second mounting plate.

[0012] Furthermore, a first handle is provided on the first mounting plate; a third mounting plate is provided on the outer side of the second clamping part, and a second handle is provided on the third mounting plate to cooperate with the first handle.

[0013] Furthermore, a sample holder, disposed on the first mounting plate, is used to store sealant samples.

[0014] Furthermore, both the temperature sensor and the temperature controller are mounted on the upper clamping plate, and the temperature sensor is a thermocouple.

[0015] Furthermore, a wiring groove is provided in the middle section of the adjacent ends of the upper clamping plate and the lower clamping plate, and a sealing plate is provided above the wiring groove on the lower clamping plate. The upper and lower clamping plates are made of aluminum alloy, stainless steel, or copper; the temperature controller is a PID fully automatic constant temperature controller that communicates via an RS-485 communication module.

[0016] Furthermore, a protrusion is provided at the distal end of the inner sidewall of the upper clamping plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model includes an upper clamping plate and a lower clamping plate. The upper clamping plate is a horizontal plate, while the lower clamping plate is designed as a folded plate. Together, they form a clamping groove structure. The lower clamping plate includes a first clamping part, a second clamping part, and a third clamping part. The first clamping part adheres to the upper surface of the plate-shaped object, and the third clamping part locks the lower surface of the plate-shaped object, forming a vertical reference. The second clamping part wraps around the end face of the plate-shaped object, establishing a horizontal reference, thereby restricting the degree of freedom of movement of the plate-shaped object and eliminating micro-displacement caused by vibration. The first, second, and third clamping parts form a stable and enclosed cavity. This area has high temperature uniformity, is free from external force interference, and has an excellent bonding environment, resulting in better adhesive bonding of the plate-shaped object. The contact surfaces of the upper and lower clamping plates are flat and smooth, ensuring that the surface of the plate-shaped object will not be damaged when clamping it. Furthermore, based on the above structure, positioning can be completed by the lower clamping plate alone, without the need for the upper and lower clamping plates to dynamically find a reference together. The hinge deformation position of the lower clamping plate is located on the upper end face of the plate-shaped object, with a small opening angle, which makes the tilting downward pressure smaller and the downward pressure more uniform, thus making the adhesive layer forming effect better; furthermore, it has a small horizontal force, avoiding horizontal displacement and tearing of the adhesive.

[0018] This invention utilizes the continuous elastic pressure provided by the elastic reset device to suppress high-frequency micro-displacement. Through the setup of a temperature sensor and temperature controller, temperature information around the door sealing sleeve can be quickly and accurately collected, providing accurate data support for the temperature controller. The collected temperature information is then transmitted to the temperature controller, enabling it to adjust the power of the heating element in a timely manner based on the actual temperature, ensuring the temperature remains within the set range. This real-time monitoring function not only improves the accuracy and stability of temperature control but also promptly detects temperature anomalies, preventing damage to plate-like objects due to excessively high or low temperatures, thereby ensuring the smooth operation of the production process.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a heating clamp in a non-clamping state according to the present invention; Figure 2 This is a schematic diagram of the structure of a heating clamp in the clamping state proposed in this utility model; Figure 3 This is a schematic diagram of the elastic reset device of this utility model; Figure 4 This is a schematic diagram of the upper and lower clamping plates in this utility model; Figure 5 This is a schematic diagram of another structure of the upper and lower clamping plates in this utility model.

[0021] In the diagram, 10 is the upper clamping plate; 100 is the wiring groove; 101 is the protrusion; 11 is the first groove; 12 is the first seal; 20 is the lower clamping plate; 200 is the sealing plate; 21 is the first clamping part; 22 is the second clamping part; 23 is the third clamping part; 24 is the second groove; 25 is the second seal; 26 is the third mounting plate; 261 is the second handle; 30 is the plate-shaped object; 31 is the first side wall; 32 is the end wall; 33 is the second side wall; 40 is the elastic reset device; 41 is the first mounting plate; 411 is the first handle; 412 is the hinge groove; 42 is the second mounting plate; 43 is the pin; 44 is the torsion spring; 50 is the heating element; 51 is the channel; 60 is the sample box; 70 is the temperature sensor; and 80 is the temperature controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Reference Figure 1-5 This utility model proposes a heating clamp, including: an upper clamping plate 10, a lower clamping plate 20, an elastic reset device 40, and a temperature control module; Upper clamping plate 10 is used to clamp the first sidewall 31 of the plate-shaped object 30; The plate-shaped object 30 can refer to a three-dimensional body with a length and width much greater than its thickness and at least one plane or curved surface. In this embodiment, the plate-shaped object 30 is a hatch sealing sleeve. The hatch sealing sleeve is a special aviation seal with an L-shaped cross section, gradient thickness, and composite material. Specifically, as shown in the figure, the plate-shaped object 30 is a plate-shaped adhesive structure formed by a plate-shaped base part that wraps around the edge of the hatch and a sealing sleeve laid on the base part.

[0025] The lower clamping plate 20 includes: a first clamping part 21, a second clamping part 22 and a third clamping part 23; The first clamping part 21 is used to clamp the first sidewall 31 of the plate-shaped object 30; The second clamping part 22 is located between the first clamping part 21 and the third clamping part 23, and is used to cover the end wall 32 of the plate-shaped object 30; The third clamping part 23 is used to clamp the second side wall 33 of the plate-shaped object 30. The first side wall 31 and the second side wall 33 are the opposite surfaces of the plate-shaped object 30. The upper clamping plate 10 is hinged to the proximal end of the first clamping part 21. The elastic reset device 40 is configured to apply an elastic force to the upper clamping plate 10 and the lower clamping plate 20 so that the upper clamping plate 10 and the lower clamping plate 20 remain in a clamped closed state; The temperature control module includes: a heating element 50, a temperature sensor 70, and a temperature controller 80; Heating element 50 is disposed on the upper clamping plate 10 and / or the lower clamping plate 20 for heating the plate-shaped object 30; specifically in this embodiment, heating elements are disposed on both the upper clamping plate 10 and the lower clamping plate 20 to ensure uniform heating.

[0026] Temperature sensor 70 is used to detect the temperature of the plate-shaped object 30; Temperature controller 80 is electrically connected to heating element 50 and temperature sensor 70. Temperature controller 80 is used to control the working state of heating element 50 according to feedback signal from temperature sensor 70, so as to maintain the temperature of clamping area within a preset range, such as 50°-80°.

[0027] It is understood that the embodiment includes an upper clamping plate 10 and a lower clamping plate 20. The upper clamping plate 10 is a horizontal plate, while the lower clamping plate 20 is designed as a folded plate. Together, they form a clamping groove structure. The lower clamping plate 20 includes a first clamping part 21, a second clamping part 22, and a third clamping part 23. The first clamping part 21 fits against the upper surface of the hatch sealing sleeve, and the third clamping part 23 locks the lower surface of the hatch sealing sleeve to form a vertical reference. The second clamping part 22 wraps around the end face of the hatch sealing sleeve to establish a horizontal reference, thereby restricting the degree of freedom of movement of the hatch sealing sleeve and eliminating micro-displacement caused by vibration.

[0028] Since the bonding area of ​​the hatch edge seal is small and the bonding requirements of the contact area are high, in this embodiment, the first clamping part 21, the second clamping part 22 and the third clamping part 23 form a stable and enclosed cavity. This area has high temperature uniformity, no external force interference, and excellent bonding environment, thereby making the adhesive effect of the hatch edge seal better.

[0029] The contact surfaces of the upper clamping plate 10 and the lower clamping plate 20 are flat and smooth, ensuring that their surfaces are not damaged when clamping the hatch sealing sleeve. Furthermore, based on this structure, positioning can be achieved solely through the lower clamping plate 20, eliminating the need for the upper clamping plate 10 and lower clamping plate 20 to dynamically find a reference point together. The hinge deformation position of the lower clamping plate 20 is located on the upper end face of the hatch sealing sleeve, with a small opening angle, resulting in a smaller tilting downward pressure and more uniform downward pressure, thus improving the adhesive layer forming effect; furthermore, it has a smaller horizontal force, preventing horizontal misalignment and tearing of the adhesive.

[0030] This invention uses the continuous elastic pressure provided by the elastic reset device 40 to suppress high-frequency micro-displacement. Through the setup of the temperature sensor 70 and the temperature controller 80, temperature information around the hatch edge sealing sleeve can be quickly and accurately collected, providing accurate data support to the temperature controller 80. The collected temperature information is then transmitted to the temperature controller 80, enabling it to adjust the power of the heating element in a timely manner according to the actual temperature, ensuring the temperature remains within the set range. This real-time monitoring function not only improves the accuracy and stability of temperature control but also promptly detects temperature anomalies, preventing damage to the hatch edge sealing sleeve due to excessively high or low temperatures, thus ensuring the smooth operation of the production process and improving the production quality and efficiency of the hatch edge sealing sleeve.

[0031] Furthermore, the first clamping part 21 of the lower clamping plate 20 extends horizontally, the second clamping part 22 is set at an angle of 75°-100° with the first clamping part 21, and the third clamping part 23 is located above the first clamping part 21 and extends horizontally.

[0032] This utility model includes an upper clamping plate 10 and a lower clamping plate 20. The upper clamping plate 10 is a horizontal plate, while the lower clamping plate 20 is designed as a folded plate. Together, they form a clamping groove structure. The lower clamping plate 20 includes a horizontally arranged first clamping part 21 for pressing the upper surface of the plate-shaped object 30, a second clamping part 22 arranged at an angle of 75°-100° with the first clamping part 21 for completely wrapping the end face of the plate-shaped object 30 to eliminate the risk of displacement in the thickness direction, and a horizontally extending third clamping part 23 for locking the lower surface of the plate-shaped object 30. The first clamping part 21, the second clamping part 22, and the third clamping part 23 together form a three-point mechanical closed loop. By restricting displacement in the length, width, and thickness directions through a contour-following bending structure, the degree of freedom of movement of the plate-shaped object 30 is restricted, thereby eliminating micro-displacement caused by vibration.

[0033] Furthermore, the heating element 50 is a heating wire, and the upper clamping plate 10 and the lower clamping plate 20 are provided with a plurality of channels 51 for placing the heating wire, and the heating wire is evenly distributed in the channels 51 inside the clamping plate in a serpentine path.

[0034] The heating wire can be installed by directly laying it on the surface of the clamping plate, or laying it in a groove, for example, by opening a groove on the surface of the clamping plate and placing the heating wire in the groove, or by passing it through a channel, for example, by opening a channel inside the clamping plate and passing the heating wire through the channel. The channel can be a through hole with a circular or elliptical cross-section. In this embodiment, the heating wire is installed by passing it through the channel 51 inside the clamping plate.

[0035] like Figure 4 As shown in the figure, the lower clamping plate 20 is in the state after the heating wire has been removed. In this embodiment, the door sealing sleeve is heated by the heating wire, which is evenly distributed in a serpentine manner within the heating area of ​​the clamping plate. This arrangement allows the heat generated by the heating wire after being energized to diffuse more evenly in all directions, reducing the problem of local overheating or insufficient heating caused by uneven distribution of the heating wire. Furthermore, the working environment often has glue splashes, forming random glue layers, which in turn form an insulation layer, resulting in uneven temperature. If the heating element 50 is placed on the surface of the clamping plate or in a surface groove, the heating element 50 is easily pulled out when cleaning the glue layer. However, placing the heating element 50 in the channel 51 inside the clamping plate makes the clamping plate surface smooth, facilitating cleaning after the clamps are contaminated with glue, and also preventing the heating element 50 from becoming contaminated with glue.

[0036] Furthermore, the upper clamping plate 10 is provided with a first groove 11 on both sides, and a first sealing element 12 is provided in the first groove 11. The lower clamping plate 20 is provided with a second groove 24 on both sides, and a second sealing element 25 is provided in the second groove 24. The first sealing element 12 and the second sealing element 25 are used to seal the channel 51. The channel opening end of the channel 51 located at the same end is located at the bottom of the groove.

[0037] Aviation sealant has high viscosity and is prone to splashing. When the heating wire of a traditional clamp is exposed, the sealant can seep in and cause a short circuit. However, the sealant physically isolates the sealant's seepage path, preventing it from penetrating. Furthermore, the sealant fills the gaps, preventing heat loss from the sides. This invention, through a combination of grooves and sealant design, ensures both sealing performance and ease of replacement.

[0038] Furthermore, the elastic reset device 40 includes: a first mounting plate 41, a second mounting plate 42, a pin 43, and a torsion spring 44. The first mounting plate 41 is disposed on the upper clamping plate 10, and the second mounting plate 42 is disposed on the lower clamping plate 20. The first mounting plate 41 is provided with a hinge groove 412. The extension of the second mounting plate 42 is hinged to the hinge groove 412 by the pin 43. The torsion spring 44 is sleeved on the pin 43. The first working end of the torsion spring 44 abuts against the first mounting plate 41, and the second working end abuts against the second mounting plate 42.

[0039] Furthermore, a first handle 411 is provided on the first mounting plate 41.

[0040] A third mounting plate 26 is provided on the outer side of the second clamping part, and a second handle 261 is provided on the third mounting plate 26 to cooperate with the first handle 411.

[0041] The torsion spring 44 in this invention conforms to the AMS5112K aerospace-grade spring steel specification. Through the design of the torsion spring 44, when the pressure plate is subjected to external force, the torsion spring 44 undergoes torsional deformation. At this time, an elastic force is generated inside the torsion spring 44, which increases with the degree of deformation. When the external force disappears, the elastic force inside the torsion spring 44 begins to exert its effect, pushing the pressure plate to move in the opposite direction along its original trajectory. Because the magnitude and direction of the elastic force of the torsion spring 44 are precisely designed, it ensures that the pressure plate accurately returns to its initial position. Whether it is the opening of the upper clamping plate 10 or the resetting of the lower clamping plate 20, the torsion spring 44 provides stable elastic force, allowing the clamp to quickly and automatically return to the working state, greatly improving operating efficiency. Furthermore, the continuous elastic pressure provided by the torsion spring 44 can suppress high-frequency micro-displacement.

[0042] This utility model includes a first handle 411 and a second handle 261, designed in accordance with ergonomics. The handle grip design conforms to SAEAR P5056 "Human Factors Engineering for Aviation Tools," and its shape and size have been carefully considered to ensure operator comfort and effectively reduce fatigue during prolonged operation. The first handle 411 and the second handle 261 allow the operator to easily move and position the tooling, facilitating its placement in a suitable location for work. The second handle 261 is positioned opposite the first handle 411 and primarily provides additional force support when clamping the door sealing sleeve. When clamping the door sealing sleeve, the operator simultaneously grips both the first handle 411 and the second handle 261, applying force in tandem. At this time, the torsion spring 44 generates elastic force, which increases with the degree of torsion spring deformation. When the external force disappears, the elastic force inside the torsion spring 44 begins to play its role, pushing the upper clamping plate 10 to move in the opposite direction along the original movement trajectory. This allows the upper clamping plate 10 and the lower clamping plate 20 to clamp the hatch edge sleeve more firmly, ensuring that it will not loosen during the heating process and guaranteeing the smooth progress of the heating and curing process, thereby improving the precision and quality of the hatch edge sleeve processing.

[0043] Furthermore, a sample box 60 is disposed on the first mounting plate 41 for storing sealant samples.

[0044] Each batch of adhesive is prepared in a sample box 60. The sample in the sample box 60 has the same ratio as the adhesive in the edge banding sleeve. The sample box 60 is installed on the fixture and is subjected to the same temperature, time and heating environment as the adhesive in the edge banding sleeve. This makes the test data of the sample in the sample box 60 closer to the actual bonding state in the fixture. By monitoring the sample in the sample box 60, the state of the adhesive in the fixture can be accurately understood. The process parameters can be calibrated in real time by setting the sample box 60. That is, by synchronously saving the curing state of the adhesive sample in the sample box 60, the temperature or time parameters can be adjusted in real time.

[0045] Furthermore, both the temperature sensor 70 and the temperature controller 80 are mounted on the upper clamping plate 10, and the temperature sensor 70 is a thermocouple.

[0046] Furthermore, a wiring groove 100 is provided in the middle section of the adjacent ends of the upper clamping plate 10 and the lower clamping plate 20, and a sealing plate 200 is provided above the wiring groove 100 on the lower clamping plate 20. The upper clamping plate 10 and the lower clamping plate 20 are made of aluminum alloy, stainless steel or copper; the temperature controller 80 is a PID fully automatic constant temperature controller, which communicates through an RS-485 communication module.

[0047] This invention provides a cable routing groove 100 in the hinged movement area between the upper clamping plate 10 and the lower clamping plate 20, thereby avoiding cable breakage caused by frequent bending. The cable routing groove 100 of the lower clamping plate 20 is covered by a sealing plate 200, thereby preventing glue / dust from entering.

[0048] The materials used in this invention conform to the "BAC5013 Boeing Aluminum Alloy Component Standard", such as aluminum-copper alloy and aluminum-zinc alloy, ensuring that the clamps do not deform or get damaged during long-term heating, and providing a stable heating environment for the cabin door edge sleeve.

[0049] In this embodiment, the temperature controller 80 is a PID fully automatic temperature controller, using an RS-485 module for communication. The RS-485 communication protocol features strong anti-interference capability, long transmission distance, support for multiple nodes, and high transmission rate. The temperature of the door sealing sleeve is regulated by the settings of the temperature controller 80. The PID fully automatic temperature controller achieves precise temperature regulation through proportional, integral, and derivative control algorithms. Proportional control parameters directly respond to temperature errors, allowing the fixture to adjust rapidly to temperature changes; integral control parameters eliminate persistent deviations by accumulating the sum of temperature errors; and derivative control parameters predict future temperature changes by measuring the rate of temperature change, thus pre-adjusting the control output. When the actual temperature deviates from the set temperature during the heating process of the hatch edge sealing sleeve, the PID fully automatic constant temperature controller will quickly calculate the error value and adjust the power of the heating wire to bring the temperature closer to the set value. This keeps the temperature fluctuation within a very small range, thereby achieving high control accuracy and stability. It ensures that the hatch edge sealing sleeve is bonded at the optimal curing temperature, avoiding the problem of reduced curing efficiency caused by temperature fluctuations, and guaranteeing the bonding quality and performance of the hatch edge sealing sleeve.

[0050] Furthermore, a protrusion 101 is provided at the distal end of the inner sidewall of the upper clamping plate 10.

[0051] like Figure 5 As shown, in another embodiment, a protrusion 101 is provided at the far end of the inner sidewall of the upper clamping plate 10. The cross-section of the protrusion 101 may be triangular, which is used to limit the displacement direction of the plate-shaped object 30, thereby making the clamping more stable.

[0052] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heating clamp, characterized in that, include: Upper clamp (10) for clamping the first sidewall (31) of the plate-shaped object (30); The lower clamping plate (20) includes: The first clamping part (21) is used to clamp the first sidewall (31) of the plate-shaped object (30); The second clamping part (22) is located between the first clamping part (21) and the third clamping part (23) and is used to cover the end wall of the plate-shaped object (30); The third clamping part (23) is used to clamp the second sidewall (33) of the plate-shaped object (30), the first sidewall (31) and the second sidewall (33) are the opposite surfaces of the plate-shaped object (30), and the upper clamping plate (10) is hinged to the proximal end of the first clamping part (21); The elastic reset device (40) is configured to apply an elastic force to the upper clamping plate (10) and the lower clamping plate (20) so that the upper clamping plate (10) and the lower clamping plate (20) remain in a clamped closed state; Temperature control module, including: A heating element (50) is disposed on the upper clamping plate (10) and / or the lower clamping plate (20) for heating the plate-shaped object (30). A temperature sensor (70) is used to detect the temperature of the plate-shaped object (30); A temperature controller (80) is electrically connected to the heating element (50) and the temperature sensor (70). The temperature controller (80) is used to control the working state of the heating element (50) according to the feedback signal of the temperature sensor (70) so as to maintain the temperature of the clamping area within a preset range.

2. A heating clamp according to claim 1, characterized in that, The first clamping part (21) of the lower clamping plate (20) extends horizontally, the second clamping part (22) is set at an angle of 75°-100° with the first clamping part (21), and the third clamping part (23) is located above the first clamping part (21) and extends horizontally.

3. A heating fixture according to claim 1, characterized in that, The heating element (50) is a heating wire. The upper clamping plate (10) and the lower clamping plate (20) are provided with multiple channels (51) for placing the heating wire. The heating wire is evenly distributed in the channels (51) inside the clamping plate in a serpentine path.

4. A heating fixture according to claim 3, characterized in that, The upper clamping plate (10) has a first groove (11) on both sides, and a first sealing element (12) is provided in the first groove (11). The lower clamping plate (20) has a second groove (24) on both sides, and a second sealing element (25) is provided in the second groove (24). The first sealing element (12) and the second sealing element (25) are used to seal the channel (51). The channel opening end of the channel (51) located at the same end is located at the bottom of the groove.

5. A heating clamp according to claim 1, characterized in that, The elastic reset device (40) includes: a first mounting plate (41), a second mounting plate (42), a pin (43), and a torsion spring (44). The first mounting plate (41) is disposed on the upper clamping plate (10), and the second mounting plate (42) is disposed on the lower clamping plate (20). The first mounting plate (41) is provided with a hinge groove (412). The extension of the second mounting plate (42) is hinged to the hinge groove (412) by the pin (43). The torsion spring (44) is sleeved on the pin (43). The first working end of the torsion spring (44) abuts against the first mounting plate (41), and the second working end abuts against the second mounting plate (42).

6. A heating clamp according to claim 5, characterized in that, The first mounting plate (41) is provided with a first handle (411); A third mounting plate (26) is provided on the outside of the second clamping part (22), and a second handle (261) is provided on the third mounting plate (26) to cooperate with the first handle (411).

7. A heating clamp according to claim 5, characterized in that, A sample box (60) is disposed on the first mounting plate (41) for storing sealant samples.

8. A heating fixture according to claim 1, characterized in that, The temperature sensor (70) and the temperature controller (80) are both mounted on the upper clamping plate (10), and the temperature sensor (70) is a thermocouple.

9. A heating clamp according to claim 1, characterized in that, The upper clamping plate (10) and the lower clamping plate (20) are provided with cable routing grooves (100) at the middle of adjacent ends, and a sealing plate (200) is provided above the cable routing grooves (100) on the lower clamping plate (20). The upper clamping plate (10) and the lower clamping plate (20) are made of aluminum alloy, stainless steel or copper; the temperature controller (80) is a PID fully automatic constant temperature controller, which communicates through an RS-485 communication module.

10. A heating fixture according to claim 1, characterized in that, The upper clamp (10) has a protrusion (101) at the far end of the inner sidewall.

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