Induction hardening furnace for heat treatment of hardware

Abstract

The induction quenching furnace comprises a base, a quenching tank is arranged at the top end of the base, a mounting frame is arranged at the top of one side of the quenching tank, an induction heating coil is arranged on one side of the mounting frame, and a fixing seat is arranged in the middle of the bottom of the rear end of the quenching tank. And a lifting electric cylinder is arranged at the bottom of the inner side of the fixed seat. The cooling assembly is arranged on the other side of the quenching tank, when heat treatment quenching is conducted on hardware, a circulating pump is started, quenching liquid is pumped into the cooling coil through a liquid pumping pipe, meanwhile, a cooling fan is started, the quenching liquid is rapidly cooled through the cooling fan and the cooling coil, and the quenching liquid is sent back into the quenching tank through a liquid return pipe; therefore, the purpose of continuous circulating cooling of the quenching liquid can be achieved, the quenching liquid is kept at the temperature for effective quenching of hardware all the time, the situation that the quenching effect of the quenching furnace is reduced due to temperature rise of the quenching liquid during continuous quenching is avoided, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment of hardware, in particular to an induction quenching furnace for heat treatment of hardware. Background Art

[0002] Hardware is a general-purpose accessory made of metal or alloy materials used in mechanical processing and manufacturing. During the production process, hardware needs to be heat treated to improve its strength and hardness. When heat treating hardware, an induction quenching furnace is needed to heat and quench the hardware.

[0003] However, in the existing induction quenching furnace, the heat on the hardware is transferred to the quenching liquid during quenching, causing the quenching liquid temperature to rise. The rise in quenching liquid temperature easily affects the quenching effect of the hardware. There is a technical problem that the quenching liquid cannot be continuously and effectively circulated and cooled to ensure the quenching effect of the quenching furnace on the hardware. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an induction quenching furnace for heat treatment of hardware, which can solve the problem that the heat on the hardware is transferred to the quenching liquid during quenching, causing the temperature of the quenching liquid to rise, and the rise in the temperature of the quenching liquid is likely to affect the quenching effect of the hardware. There is a technical problem that the quenching liquid cannot be continuously and effectively circulated and cooled to ensure the effect of the quenching furnace on the quenching treatment of the hardware.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an induction quenching furnace for heat treatment of hardware, comprising a base, a quenching tank is arranged at the top of the base, a mounting frame is arranged at the top of one side of the quenching tank, an induction heating coil is arranged on one side of the mounting frame, a fixing seat is arranged at the middle position of the bottom of the rear end of the quenching tank, a lifting electric cylinder is arranged at the bottom of the inner side of the fixing seat, a lifting carrier is arranged inside the quenching tank, a stabilizing structure is arranged at the middle position between the rear end of the lifting carrier and the rear end of the quenching tank, a cooling frame is arranged at the middle position near the bottom of the other side of the quenching tank, a cooling coil is arranged inside the cooling frame, a cooling fan is arranged on one side of the cooling frame, a circulating pump is arranged at the middle position of the top of the cooling frame, a liquid return pipe is arranged at the output end of the circulating pump, a liquid extraction pipe is inserted at the middle position of the bottom of one side of the quenching tank, and an isolation and protection component is arranged on the outside of the induction heating coil.

[0006] As a preferred technical solution of the utility model, the top end of the liquid return pipe passes through the top of the other side of the quenching tank and extends into it, the top end of the cooling coil is fixedly connected to the input end of the circulating pump, and the top end of the liquid extraction pipe passes through the bottom end of the cooling frame and is fixedly connected to the bottom end of the cooling coil.

[0007] As a preferred technical solution of the utility model, the top of the lifting electric cylinder is fixedly connected to the top of the rear end of the lifting carrier, and a drainage port is provided on one side of the bottom of the front end of the quenching tank.

[0008] As a preferred technical solution of the utility model, the stabilizing structure includes a stabilizing slide groove, which is arranged at the middle position of the rear end of the quenching tank, and a stabilizing slider is arranged at the middle position of the bottom of the rear end of the lifting carrier, and the stabilizing slider is embedded in the interior of the stabilizing slide groove, and the stabilizing slider can be lifted and slid in the stabilizing slide groove.

[0009] As a preferred technical solution of the utility model, the isolation and protection assembly includes a heat insulation cover, which is arranged on the outside of the induction heating coil, and positioning slots are arranged at both ends of one side of the mounting frame.

[0010] As a preferred technical solution of the utility model, the heat shield is in a "U" shape, the positioning slots are symmetrically arranged on one side of the mounting frame, and the two ends of one side of the heat shield are inserted into the interior of the positioning slots.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By arranging a cooling assembly on the other side of the quenching tank, when the hardware is heat-treated and quenched, the circulating pump is started to extract the quenching liquid into the cooling coil through the liquid extraction pipe, and the cooling fan is started at the same time. The quenching liquid is quickly cooled by the cooling fan and the cooling coil, and is returned to the quenching tank through the return pipe. In this way, the purpose of continuous circulation cooling of the quenching liquid can be achieved, so as to ensure that the quenching liquid is always kept at a temperature that can effectively quench the hardware, and the quenching liquid temperature is prevented from rising during continuous quenching, reducing the quenching effect of the quenching furnace, and the feasibility is strong;

[0013] 2. By providing an isolation protection component on the outside of the induction heating coil, the heat insulation cover is connected to the outside of the induction heating coil when in use, and the two ends of one side of the heat insulation cover are inserted into the inside of the positioning slot, so as to achieve the purpose of stabilizing the heat insulation cover, and the induction heating coil is isolated inside by the heat insulation cover, so as to achieve safety accidents caused by technical workers accidentally touching the high-temperature induction heating coil when heat treating the hardware, thereby making the induction quenching furnace safer during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a front view structural schematic diagram of the utility model;

[0017] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the quenching tank of the utility model in a side view.

[0018] Among them: 1. Base; 2. Cooling frame; 3. Quenching tank; 4. Drain port; 5. Heat insulation cover; 6. Mounting frame; 7. Induction heating coil; 8. Liquid return pipe; 9. Circulation pump; 10. Cooling coil; 11. Fixed seat; 12. Lifting electric cylinder; 13. Cooling fan; 14. Positioning slot; 15. Lifting carrier; 16. Stabilizing slide groove; 17. Liquid extraction pipe; 18. Stabilizing slider. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Example

[0021] Please refer to Figure 1-4As shown, the utility model provides an induction quenching furnace for heat treatment of hardware, including a base 1, a quenching tank 3 is arranged at the top of the base 1, a mounting frame 6 is arranged at the top of one side of the quenching tank 3, an induction heating coil 7 is arranged on one side of the mounting frame 6, a fixing seat 11 is arranged at the middle position of the bottom of the rear end of the quenching tank 3, a lifting electric cylinder 12 is arranged at the bottom of the inner side of the fixing seat 11, and a lifting carrier 15 is arranged inside the quenching tank 3. The hardware to be heat treated is loaded by the lifting carrier 15, the top of the lifting electric cylinder 12 is fixedly connected to the top of the rear end of the lifting carrier 15, and the hardware is placed on the bottom of the front end of the lifting carrier 15 and then lifted to the induction heating coil 7 by the lifting electric cylinder 12. On the inside, the hardware is heated by the induction heating coil 7. After the hardware is heated, the lifting carrier 15 is driven by the lifting electric cylinder 12 to descend and sink into the quenching liquid in the quenching tank 3, so as to quench the hardware. A drainage port 4 is arranged on one side of the bottom of the front end of the quenching tank 3, and a stabilizing slide groove 16 is arranged at the middle position of the rear end of the quenching tank 3. A stabilizing slider 18 is arranged at the middle position of the bottom of the rear end of the lifting carrier 15. The stabilizing slider 18 is embedded in the inside of the stabilizing slide groove 16, and the stabilizing slider 18 can be lifted and slid in the stabilizing slide groove 16. When the lifting carrier 15 is lifted and adjusted, the stabilizing slider 18 is lifted and slid in the stabilizing slide groove 16 to stabilize the lifting carrier 15 and the hardware.

[0022] As a further implementation of this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a cooling frame 2 is provided at the middle position near the bottom of the other side of the quenching tank 3, a cooling coil 10 is provided inside the cooling frame 2, a cooling fan 13 is provided on one side of the cooling frame 2, a circulating pump 9 is provided at the middle position of the top of the cooling frame 2, the top of the cooling coil 10 is fixedly connected to the input end of the circulating pump 9, a liquid extraction pipe 17 is inserted at the middle position of the bottom end of one side of the quenching tank 3, the top of the liquid extraction pipe 17 passes through the bottom end of the cooling frame 2 and is fixedly connected to the bottom end of the cooling coil 10, and the quenching liquid is extracted to the cooling coil through the circulating pump 9 via the liquid extraction pipe 17. 10, and at the same time, the cooling fan 13 is started, and the quenching liquid is quickly cooled by the cooling fan 13 and the cooling coil 10. The output end of the circulating pump 9 is provided with a return pipe 8, and the top of the return pipe 8 passes through the top of the other side of the quenching tank 3 and extends therein. The cooled quenching liquid is returned to the inside of the quenching tank 3 through the return pipe 8, so that the purpose of continuous circulation cooling of the quenching liquid can be achieved, so as to ensure that the quenching liquid is always kept at a temperature that can effectively quench the hardware, and avoid the quenching liquid temperature rising during continuous quenching to reduce the quenching effect of the quenching furnace, and the feasibility is strong;

[0023] When heat treatment and quenching are performed on the hardware, the circulation pump 9 is started to extract the quenching liquid into the interior of the cooling coil 10 through the liquid extraction pipe 17, and the cooling fan 13 is started at the same time. The quenching liquid is quickly cooled by the cooling fan 13 and the cooling coil 10, and is returned to the interior of the quenching tank 3 through the liquid return pipe 8, so that the quenching liquid is continuously circulated and cooled;

[0024] As a further implementation of this embodiment, Figure 1-4 As shown, an isolation protection component is arranged on the outside of the induction heating coil 7, and the isolation protection component includes a "U"-shaped heat insulation cover 5, which is arranged on the outside of the induction heating coil 7, and the induction heating coil 7 is isolated therein by the heat insulation cover 5. Positioning slots 14 are arranged at both ends of one side of the mounting frame 6, and the positioning slots 14 are symmetrically arranged on one side of the mounting frame 6. The two ends of one side of the heat insulation cover 5 are inserted into the interior of the positioning slots 14, so as to achieve the purpose of stabilizing the heat insulation cover 5, thereby realizing a safety accident caused by a skilled worker accidentally touching the high-temperature induction heating coil 7 when heat treating the hardware, thereby making the induction quenching furnace safer when operating;

[0025] Specific working principle:

[0026] When using the induction quenching furnace, firstly, the heat insulation cover 5 is connected to the outside of the induction heating coil 7, and at the same time, the two ends of one side of the heat insulation cover 5 are inserted into the inside of the positioning slot 14, so that the heat insulation cover 5 can be stably installed, and then the hardware that needs to be heat treated is placed on the bottom of the front end of the lifting carrier 15, and the hardware is lifted to the inside of the induction heating coil 7 by the lifting electric cylinder 12, and the hardware is heated by the induction heating coil 7. At the same time, the high-temperature induction heating coil 7 is isolated by the heat insulation cover 5 to prevent technical workers from accidentally touching it and causing safety accidents. After the hardware is heated, the induction heating coil 7 is turned off, and then the lifting carrier 15 is driven by the lifting electric cylinder 12 to sink into the quenching liquid in the quenching tank 3. , thereby quenching the hardware, and when the lifting carrier 15 is lifted and adjusted, the stabilizing slider 18 is lifted and slid in the stabilizing slide groove 16 to stabilize the lifting carrier 15 and the hardware, and when quenching is in progress, the circulating pump 9 is started to extract the quenching liquid into the cooling coil 10 through the liquid extraction pipe 17, and the cooling fan 13 is started at the same time, and the quenching liquid is quickly cooled by the cooling fan 13 and the cooling coil 10, and returned to the quenching tank 3 through the return pipe 8, so as to continuously circulate and cool the quenching liquid to ensure the quenching effect. After the quenching is completed, the hardware is lifted out of the quenching tank 3 by the lifting electric cylinder 12 and can be taken out for subsequent hardware heat treatment quenching process.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An induction hardening furnace for heat treatment of hardware, comprising a base (1), characterized in that: A quenching tank (3) is arranged at the top of the base (1), a mounting frame (6) is arranged at the top of one side of the quenching tank (3), an induction heating coil (7) is arranged on one side of the mounting frame (6), a fixing seat (11) is arranged at the middle position of the bottom of the rear end of the quenching tank (3), a lifting electric cylinder (12) is arranged at the bottom of the inner side of the fixing seat (11), a lifting carrier (15) is arranged inside the quenching tank (3), and a stabilizing member (15) is arranged between the rear end of the lifting carrier (15) and the middle position of the rear end of the quenching tank (3). A cooling frame (2) is provided at a middle position near the bottom of the other side of the quenching tank (3), a cooling coil (10) is provided inside the cooling frame (2), a cooling fan (13) is provided on one side of the cooling frame (2), a circulating pump (9) is provided at a middle position at the top of the cooling frame (2), a liquid return pipe (8) is provided at the output end of the circulating pump (9), a liquid extraction pipe (17) is plugged at a middle position at the bottom of one side of the quenching tank (3), and an isolation protection component is provided on the outside of the induction heating coil (7).

2. The induction quenching furnace for heat treatment of hardware according to claim 1, characterized in that: The top end of the liquid return pipe (8) passes through the top of the other side of the quenching tank (3) and extends into it, the top end of the cooling coil (10) is fixedly connected to the input end of the circulation pump (9), and the top end of the liquid extraction pipe (17) passes through the bottom end of the cooling frame (2) and is fixedly connected to the bottom end of the cooling coil (10).

3. The induction quenching furnace for heat treatment of hardware according to claim 1, characterized in that: The top end of the lifting electric cylinder (12) is fixedly connected to the top of the rear end of the lifting carrier (15), and a liquid discharge port (4) is provided on one side of the bottom of the front end of the quenching tank (3).

4. The induction quenching furnace for heat treatment of hardware according to claim 1, characterized in that: The stabilizing structure comprises a stabilizing slide groove (16), the stabilizing slide groove (16) being arranged at the middle position of the rear end inside the quenching tank (3), and a stabilizing slider (18) being arranged at the middle position of the bottom of the rear end of the lifting carrier (15), the stabilizing slider (18) being embedded in the stabilizing slide groove (16), and the stabilizing slider (18) can be lifted and slid in the stabilizing slide groove (16).

5. The induction quenching furnace for heat treatment of hardware according to claim 1, characterized in that: The isolation protection component comprises a heat insulation cover (5), the heat insulation cover (5) is arranged on the outside of the induction heating coil (7), and positioning slots (14) are arranged at both ends of one side of the mounting frame (6).

6. The induction quenching furnace for heat treatment of hardware according to claim 5, characterized in that: The heat insulation cover (5) is in a "U" shape, and the positioning slots (14) are symmetrically arranged on one side of the mounting frame (6), and the two ends of one side of the heat insulation cover (5) are inserted into the interior of the positioning slots (14).

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