Centralized quenching device for bolt machining

Abstract

The invention relates to the technical field of bolt machining, and discloses a centralized quenching device for bolt machining, the centralized quenching device comprises a machining box, a conveying belt frame and a controller, the conveying belt frame is arranged in the machining box, the controller is mounted on the front side of the machining box, and a containing box for bolts to be treated is placed at the top of a conveying belt on the conveying belt frame. Through segmented control of the integrated heating mechanism, the induction heating device and the cooling mechanism, accurate temperature regulation and control are achieved, an electric heating wire and constant-temperature circulating liquid are adopted in the heating stage to maintain a stable heat treatment environment, and power is dynamically adjusted through the high-frequency magnetic field and the eddy current effect in induction heating; a uniform hardened layer is formed on the surface of the bolt and the internal toughness is kept; and in the cooling stage, shock cooling is achieved by evenly spraying cooling liquid, internal stress is released, the lattice structure and mechanical performance of the bolt are optimized through the multi-stage synergistic effect, and the hardness, abrasion resistance and fatigue resistance of the bolt are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of bolt processing, in particular to a centralized quenching device for bolt processing. Background Art

[0002] Bolts are indispensable in our lives. Bolts are a type of fastener consisting of a head and a screw. They need to be used with nuts to fasten two parts with through holes. In order to improve the structural strength of the bolts, quenching processing will be performed. A quenching device will be used in bolt processing. The quenching device can heat the bolts and then quickly cool them to achieve quenching.

[0003] Currently, quenching devices have problems such as uneven heating and low efficiency, which lead to unstable bolt quality and affect the use effect. Traditional devices have complex structures, difficult maintenance, and high energy consumption, which cannot meet the modern industry's demand for high efficiency and energy saving.

[0004] To this end, the present invention proposes a new type of centralized quenching device, which achieves uniform heating and efficient cooling by optimizing the heating structure and airflow control, improves the quality of bolts, simplifies the maintenance process, reduces energy consumption, and meets the needs of modern industry. Summary of the Invention

[0005] The object of the present invention is to provide a centralized quenching device for bolt processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a centralized quenching device for bolt processing, comprising a processing box, a conveyor belt frame, and a controller, wherein the conveyor belt frame is arranged inside the processing box, the controller is installed on the front of the processing box, a storage box for the bolts to be processed is placed on the top of the conveyor belt on the conveyor belt frame, and a cooling mechanism, a heating mechanism and an induction heating device are arranged in sequence from right to left inside the processing box.

[0007] Preferably, the cooling mechanism includes a cooling chamber adapted to the receiving box, an external cooling water pipe is provided on the outside of the cooling chamber, a plurality of cooling nozzles are connected to the external cooling water pipe, and the cooling nozzles are evenly distributed on the external cooling water pipe. A coolant tank is installed on the top of the cooling chamber, and the coolant tank is connected to the external cooling water pipe through the cooling water pipe. The cooling water pipe is provided with a flow regulating valve, and the coolant tank is equipped with a water level sensor and a temperature sensor to monitor the coolant temperature and liquid level in real time, and the automatic water replenishment system is linked to it; an exhaust fan is also provided on the back of the cooling chamber to discharge the heat generated during the cooling process.

[0008] Preferably, the heating mechanism includes a heating chamber adapted to the receiving box, an external heating pipe is provided on the outside of the heating chamber, a plurality of heating nozzles are connected to the external heating pipe, and the heating nozzles are evenly distributed on the external heating pipe. A heating water tank is provided above the top of the heating chamber, and the heating water tank is connected to the external heating pipe through a heating water pipe. The heating water pipe is provided with a flow regulating valve, and the heating water tank has built-in water level and temperature sensors to monitor the temperature and liquid level of the heating liquid in real time, and an automatic water replenishment system is linked to it; an exhaust fan is also provided on the back of the heating chamber to discharge excess heat generated during the heating process to ensure uniform heating.

[0009] Preferably, an electric heating wire is installed on the top of the heating chamber, and the electric heating wire is connected to the controller through a thermostat to achieve precise temperature control. The top of the electric heating wire is installed with the heating water tank.

[0010] Preferably, the induction heating device includes an induction heating chamber adapted to the receiving box, and high-frequency induction heating components are provided on both sides of the outside of the induction heating chamber.

[0011] Preferably, the high-frequency induction heating component specifically includes a hemispherical metal hollow cover installed on both sides of the outside of the induction heating chamber. The metal hollow cover is provided with a vent, and an inverted cone-shaped air return cover is installed at the vent. The inner wall of the air return cover is coated with magnetic material. The air return cover is equipped with a circulating air fan. The circulating air fan adjusts its speed through a controller to ensure smooth air circulation.

[0012] Preferably, the side walls of the metal hollow cover are installed with metal light strips, which are connected to the controller through wires to achieve light-heat conversion and enhance the heating effect. Semi-open heat insulation covers are installed between the metal light strips to effectively block heat dissipation and improve thermal efficiency.

[0013] Preferably, the induction heating chamber is equipped with a base barrel, which is installed on the top wall of a metal hollow cover located outside the air backflow cover. Multiple turns of induction coil are evenly wound around the circumference of the outer wall of the base barrel. The coil is connected to the controller through a high-frequency power supply to ensure that the high-frequency oscillation of the coil generates a uniform magnetic field and the material in the base barrel is heated evenly; the induction coil is provided with a temperature sensing probe, and a cross-shaped vibration spring bar is installed at the bottom of the base barrel, and strong magnetic permanent magnets are evenly installed on the vibration spring bar.

[0014] The present invention provides a centralized quenching device for bolt processing, which has the following beneficial effects: (1) The present invention realizes precise temperature control by integrating the heating mechanism, induction heating device and cooling mechanism through segmented control. In the heating stage, electric heating wire and constant temperature circulating fluid are used to maintain a stable heat treatment environment. Induction heating uses high-frequency magnetic field and eddy current effect to dynamically adjust the power to ensure that a uniform hardened layer is formed on the surface of the bolt while the toughness is maintained inside. In the cooling stage, rapid cooling is achieved by uniformly spraying coolant to release internal stress. The synergistic effect of multiple stages optimizes the lattice structure and mechanical properties of the bolt, significantly improving its hardness, wear resistance and fatigue resistance.

[0015] (2) The present invention forms a three-dimensional uniform temperature field by uniformly distributing the heating nozzles and cooling nozzles, combining the dispersion effect of the vibrating spring bars on the magnetic field in induction heating and the hot air convection driven by the circulating air fan. This design effectively avoids local overheating or uneven cooling, reduces the risk of bolt deformation and cracking, and controls the hardness distribution deviation of batch products within ±2%. The surface finish is improved by more than 40%, significantly improving production consistency and yield rate.

[0016] (3) The controller of the present invention uses real-time feedback data from temperature and liquid level sensors to dynamically adjust the heating power, coolant flow rate and circulating air fan speed to form an automated closed-loop control. Each module (heating, sensing, cooling) is integrated into the processing box and cooperates with the conveyor belt to achieve full process automation, reducing manual intervention and energy consumption. The automatic water replenishment system reduces resource waste, and the exhaust fan optimizes equipment heat dissipation. The overall energy consumption is reduced by 30%, and the production efficiency is increased by 50%, which is both economical and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the overall structure of the present invention; Figure 2 A three-dimensional view of the cooling mechanism, heating mechanism and induction heating device of the present invention; Figure 3 A three-dimensional view of the specific structure of the cooling mechanism, heating mechanism and induction heating device of the present invention; Figure 4 It is a cross-sectional view of the cooling mechanism, heating mechanism and induction heating device of the present invention; Figure 5 This is a diagram of the internal structure of the induction heating device of the present invention.

[0018] In the figure: processing box 21, conveyor belt frame 22, controller 23, storage box 24, cooling chamber 31, external cooling water pipe 32, cooling nozzle 33, cooling water pipe 34, coolant tank 35, heating chamber 41, external heating pipe 42, heating nozzle 43, heating water pipe 44, heating water tank 45, exhaust fan 46, electric heating wire 47, high-frequency induction heating components 52 are provided on both sides of the outside of induction heating chamber 51, and the high-frequency induction heating components 52 specifically include a hemispherical metal hollow cover 521, an air backflow cover 522, a metal light belt 523, a heat insulation cover 524, a base barrel 525, a multi-turn induction coil 526, a circulating air fan 527, a vibration spring bar 528, and a strong magnetic permanent magnet 529 that are connected and installed on both sides of the outside of the induction heating chamber 51. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0021] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example

[0022] A preferred embodiment of a centralized quenching device for bolt processing provided by the present invention is as follows: Figure 1-5 Figure 2 shows a centralized quenching device for bolt processing, comprising a processing box 21, a conveyor belt frame 22, and a controller 23. The conveyor belt frame 22 is disposed inside the processing box 21, and the controller 23 is mounted on the front of the processing box 21. A receiving box 24 for bolts to be processed is placed on top of the conveyor belt on the conveyor belt frame 22. A cooling mechanism 3, a heating mechanism 4, and an induction heating device 5 are disposed inside the processing box 21 in order from right to left. The cooling mechanism 3 includes a cooling chamber 31 adapted to the receiving box 24. An external cooling water pipe 32 is provided outside the cooling chamber 31. The external cooling water pipe 32 is connected to a plurality of cooling nozzles 33. The cooling nozzles 33 are evenly distributed on the external cooling water pipe 32. A coolant tank 35 is installed on the top of the cooling chamber 31. The coolant tank 35 is connected to the external cooling water pipe 32 through a cooling water pipe 34. The cooling water pipe 34 is provided with a flow regulating valve to ensure uniform spraying of the coolant. The coolant tank 35 is equipped with a water level sensor and a temperature sensor to monitor the coolant temperature and liquid level in real time. The automatic water replenishment system is linked to it. An exhaust fan 36 is also provided on the back of the cooling chamber 31 to discharge the heat generated during the cooling process to ensure the cooling effect. In this embodiment, by starting the liquid pump in the coolant tank 35, the coolant is evenly transported to the external cooling water pipe 32 after being controlled by the flow regulating valve, and then sprayed into the cooling chamber 31 by the cooling nozzle 33. The coolant covers the surface of the bolt to be treated, quickly lowering its temperature and achieving a quenching effect. Example

[0023] See also Figure 1-Figure 5 , and on the basis of Example 1, it is further obtained that: the heating mechanism 4 includes a heating chamber 41 adapted to the receiving box 24, an external heating pipe 42 is provided on the outside of the heating chamber 41, and the external heating pipe 42 is connected to a plurality of heating nozzles 43, and the heating nozzles 43 are evenly distributed on the external heating pipe 42, and a heating water tank 45 is provided above the top of the heating chamber 41, and the heating water tank 45 is connected to the external heating pipe 42 through a heating water pipe 44, and the heating water pipe 44 is provided with a flow regulating valve to ensure uniform spraying of the heating liquid; the heating water tank 45 has built-in water level and temperature sensors to monitor the temperature and liquid level of the heating liquid in real time, and the automatic water replenishment system is linked to it; an exhaust fan 46 is also provided on the back of the heating chamber 41 to discharge excess heat generated during the heating process to ensure uniform heating; an electric heating wire 47 is installed on the top of the heating chamber 41, and the electric heating wire 47 is connected to the controller 23 through a thermostat to achieve precise temperature control, and the top of the electric heating wire 47 is installed with the heating water tank 45; In this embodiment, by starting the water pump in the heating water tank 45, the heating liquid is evenly transported to the external heating tube 42 after being controlled by the flow regulating valve, and is sprayed to the heating chamber 41 through the heating nozzle 43. The heating liquid heats up rapidly to ensure that the bolts are heated evenly. At this time, the electric heating wire 47 accurately adjusts the temperature through the thermostat, and the heating liquid circulates to maintain a constant temperature environment, thereby ensuring that the bolts are heat treated at a constant temperature and improving their mechanical properties. Example

[0024] See also Figure 1-Figure 5, and on the basis of Example 1, it is further obtained that: the induction heating device 5 includes an induction heating chamber 51 adapted to the receiving box 24, and high-frequency induction heating components 52 are provided on both sides of the outside of the induction heating chamber 51. The high-frequency induction heating components 52 specifically include hemispherical metal hollow covers 521 connected and installed on both sides of the outside of the induction heating chamber 51. The metal hollow cover 521 is provided with a vent, and an inverted cone-shaped air return cover 522 is installed at the vent. The inner wall of the air return cover 522 is coated with a magnetic material to make it have magnetic responsiveness, so that Tiny iron filings in the outside air are adsorbed to prevent them from entering the induction heating chamber 51. The air backflow cover 522 is equipped with a circulating air fan 527. The circulating air fan 527 adjusts its speed through the controller 23 to ensure smooth air circulation. The side wall of the metal hollow cover 521 is equipped with a metal light strip 523. The metal light strip 523 is connected to the controller 23 through a wire to achieve light-heat conversion and enhance the heating effect. A semi-open heat insulation cover 524 is installed between the metal light strips 523. The heat insulation cover 524 effectively blocks heat dissipation and improves thermal efficiency. A base barrel 525 is provided, and the base barrel 525 is installed on the top wall of the metal hollow cover 521 outside the air backflow cover 522. The outer wall of the base barrel 525 is evenly wound with multiple turns of induction coil 526. The coil is connected to the controller 23 through a high-frequency power supply to ensure that the high-frequency oscillation of the coil generates a uniform magnetic field and the material in the base barrel is heated evenly; the induction coil 526 is provided with a temperature sensing probe to monitor the temperature change in the base barrel in real time, and the data is fed back to the controller 23. The controller 23 dynamically adjusts the heating power according to the feedback data. A cross-shaped induction coil 526 is installed at the bottom of the base barrel 525. The fork-shaped vibration spring bar 528 has strong permanent magnets 529 installed at equal intervals on it. The strong permanent magnets 529 work together with the induction coil 526 to form a strong magnetic field, generate eddy current effect, accelerate the movement of material molecules, and improve heating efficiency. The unique design of the vibration spring bar 528 can effectively disperse the magnetic field intensity, avoid local overheating, and ensure that the material is heated evenly. Under the action of the circulating air fan 527, air circulation and magnetic field effects complement each other, further optimizing the heating environment. The hot air forms an airflow in the induction heating chamber, further promoting uniform heating of the bolts.

[0025] When in use, first put the bolts to be quenched into the receiving box 24, start the controller 23, and transport the receiving box 24 to the heating chamber 41 through the conveyor belt on the conveyor belt rack 22. By starting the water pump in the heating water tank 45, the heating liquid is evenly transported to the external heating pipe 42 and sprayed into the heating chamber 41 through the heating nozzle 43. The heating liquid heats up quickly to ensure that the bolts are heated evenly. At this time, the electric heating wire 47 accurately adjusts the temperature through the thermostat, and the heating liquid circulates to maintain a constant temperature environment, thereby ensuring that the bolts are heat treated at a constant temperature. After the bolts are preheated to the set temperature, they are transported to the induction heating chamber 51, and the controller 23 starts the induction coil 526. The high-frequency magnetic field quickly penetrates the bolts, and the inside of the bolts is heated. The lattice structure of the bolt changes. When the bolt is placed in a magnetic field, a closed eddy current is induced. The magnetocaloric effect is significant, and the temperature rises rapidly to the quenching requirement. The high-frequency current forms a dense current layer on the metal surface, and the current density decays. A uniform hardened layer is formed on the surface of the bolt, and the interior maintains toughness and the structure is optimized. The controller 23 monitors the temperature in real time to ensure that the bolt is processed at the optimal quenching temperature. It is then transported to the cooling chamber 52, where the coolant is sprayed rapidly, the surface temperature of the bolt drops sharply, the internal stress is released, and a high-strength hardened layer is formed. The cooling is uniform, the surface finish of the bolt is improved, the internal structure is stable, and the overall performance is significantly enhanced. After the cooling process is completed, the bolt is sent to the inspection area via a conveyor belt, and the inspection equipment conducts a comprehensive inspection of the bolt.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A centralized quenching device for bolt processing, comprising a processing box (21), a conveyor belt frame (22), and a controller (23), characterized in that: The conveyor belt frame (22) is arranged inside the processing box (21), the controller (23) is installed on the front of the processing box (21), a storage box (24) for the bolts to be processed is placed on the top of the conveyor belt on the conveyor belt frame (22), and a cooling mechanism (3), a heating mechanism (4) and an induction heating device (5) are arranged in sequence from right to left inside the processing box (21).

2. The centralized quenching device for bolt processing according to claim 1, characterized in that: The cooling mechanism (3) includes a cooling chamber (31) adapted to the receiving box (24), an external cooling water pipe (32) is provided outside the cooling chamber (31), and a plurality of cooling nozzles (33) are provided in communication with the external cooling water pipe (32), and the cooling nozzles (33) are evenly distributed on the external cooling water pipe (32), a cooling liquid tank (35) is installed on the top of the cooling chamber (31), and the cooling liquid tank (35) is connected to the external cooling water pipe (32) through the cooling water pipe (34), and the cooling water pipe (34) is provided with a flow regulating valve, and a water level sensor and a temperature sensor are built into the cooling liquid tank (35), which monitor the temperature and liquid level of the cooling liquid in real time, and the automatic water replenishing system is linked to the cooling liquid tank (35); an exhaust fan (36) is also provided on the back of the cooling chamber (31) for discharging heat generated during the cooling process.

3. The centralized quenching device for bolt processing according to claim 1, characterized in that: The heating mechanism (4) includes a heating chamber (41) adapted to the receiving box (24), an external heating pipe (42) is provided on the outside of the heating chamber (41), and a plurality of heating nozzles (43) are provided in communication with the external heating pipe (42), and the heating nozzles (43) are evenly distributed on the external heating pipe (42), a heating water tank (45) is provided above the top of the heating chamber (41), the heating water tank (45) is connected to the external heating pipe (42) through a heating water pipe (44), the heating water pipe (44) is provided with a flow regulating valve, and the heating water tank (45) has a built-in water level and temperature sensor to monitor the temperature and liquid level of the heating liquid in real time, and an automatic water replenishing system is linked to it; an exhaust fan (46) is also provided on the back of the heating chamber (41) to discharge excess heat generated during the heating process to ensure uniform heating.

4. The centralized quenching device for bolt processing according to claim 3, characterized in that: An electric heating wire (47) is installed on the top of the heating chamber (41). The electric heating wire (47) is connected to the controller (23) through a temperature controller to achieve precise temperature control. The top of the electric heating wire (47) is installed with the heating water tank (45).

5. The centralized quenching device for bolt processing according to claim 1, characterized in that: The induction heating device (5) comprises an induction heating chamber (51) adapted to the receiving box (24), and high-frequency induction heating components (52) are provided on both sides of the exterior of the induction heating chamber (51).

6. The centralized quenching device for bolt processing according to claim 5, characterized in that: The high-frequency induction heating component (52) specifically includes a hemispherical metal hollow cover (521) connected and installed on both sides of the outside of the induction heating chamber (51). The metal hollow cover (521) is provided with a vent, and an inverted cone-shaped air backflow cover (522) is installed at the vent. The inner wall of the air backflow cover (522) is coated with magnetic material. The air backflow cover (522) (31) is built with a circulating air fan (527). The circulating air fan (527) adjusts its speed through the controller (23) to ensure smooth air circulation.

7. The centralized quenching device for bolt processing according to claim 6, characterized in that: A metal light strip (523) is installed on the side wall of the metal hollow cover (521). The metal light strip (523) is connected to the controller (23) via a wire to achieve light-heat conversion and enhance the heating effect. A semi-open heat insulation cover (524) is installed between the metal light strips (523). The heat insulation cover (524) effectively blocks heat dissipation and improves thermal efficiency.

8. The centralized quenching device for bolt processing according to claim 5, characterized in that: The induction heating chamber (51) is equipped with a base barrel (525), which is mounted on the top wall of a metal hollow cover (521) located outside the air backflow cover (522). The outer wall of the base barrel (525) is equidistantly wound with multiple turns of an induction coil (526). The coil is connected to a controller (23) via a high-frequency power supply to ensure that the high-frequency oscillation of the coil generates a uniform magnetic field, and the material in the base barrel is heated uniformly. The induction coil (526) is provided with a temperature sensing probe. A cross-shaped vibration spring bar (528) is mounted on the bottom of the base barrel (525), and strong magnetic permanent magnets (529) are equidistantly mounted on the vibration spring bar (528).

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