A quenching inductor for preventing deformation

Abstract

The utility model relates to quenching inductor design technical field, especially a kind of quenching inductor for preventing deformation. Including base assembly, the L-shaped bottom plate of base assembly mutual symmetry arrangement, and the insulating plate of installation between two L-shaped bottom plate;Connecting copper pipe, the connecting copper pipe is equipped with two, two connecting copper pipe is respectively installed in the side of two L-shaped bottom plate mutual away;Heating assembly, the heating assembly includes multiple side-by-side arrangement square induction ring, to form a quenching passage for workpiece to pass through;Multiple square induction ring are connected with two connecting copper pipe;Magnetic conduction component, the magnetic conduction component includes the U-shaped magnetizer of symmetric installation in the two sides of multiple square induction ring;Cooling assembly, the cooling assembly includes the first cooling water spray unit of ring set in the outer periphery of multiple square induction ring, and the second cooling water spray unit of ring set in the workpiece output port outside of quenching passage.

Description

Technical Field

[0001] This utility model relates to the field of quenching inductor design technology, and in particular to a quenching inductor for preventing deformation. Background Technology

[0002] In the field of metal processing, induction hardening is a key process for improving the surface hardness and wear resistance of workpieces, and it is widely used in industries such as machinery manufacturing, oil drilling and extraction, and lifting equipment. However, existing induction hardening devices still have many technical challenges in practical applications:

[0003] Induction coils are prone to deformation: Traditional induction coils are mostly single-coil or simply bent structures, lacking effective support and reinforcement designs. During high-frequency heating, the induction coil is easily deformed due to high temperatures, resulting in uneven gaps with the workpiece. This not only affects the magnetic field distribution and causes inconsistent hardening layer depth, but may also cause arcing between the induction coil and the workpiece due to excessively small gaps, damaging both the equipment and the workpiece.

[0004] The cooling system is inadequate: Existing devices mostly use single spray or internal water cooling structures, which are insufficient to meet the dual cooling needs of the induction coil and the workpiece. If the cooling water path design is unreasonable, the cooling water is easily dispersed and lost, failing to accurately cool the high-temperature induction coil and further exacerbating its deformation. Simultaneously, if the workpiece is not cooled promptly or evenly after quenching, soft bands can easily form (especially in the butt-joint quenching zone of circumferential workpieces), resulting in insufficient workpiece hardness and affecting its service life. Therefore, it is necessary to propose a technical solution to address these shortcomings. Utility Model Content

[0005] The present invention adopts the following technical solution:

[0006] A quenching inductor for preventing deformation, comprising:

[0007] A base assembly, comprising L-shaped base plates symmetrically arranged between the two L-shaped base plates, and an insulating plate installed between the two L-shaped base plates;

[0008] Two connecting copper pipes are provided, and the two connecting copper pipes are respectively installed on the opposite sides of the two L-shaped base plates.

[0009] The heating assembly includes multiple square induction coils arranged side by side to form a quenching channel for the workpiece to pass through; each of the multiple square induction coils is connected to two connecting copper pipes.

[0010] A magnetic conductive assembly, comprising U-shaped magnetic conductors symmetrically mounted on both sides of the plurality of square induction coils;

[0011] The cooling assembly includes a first cooling water spray unit surrounding the periphery of the plurality of square induction coils, and a second cooling water spray unit surrounding the workpiece outlet of the quenching channel.

[0012] Preferably, the connecting copper pipe is hollow; three square induction coils are arranged side by side, and the three square induction coils are interconnected. The square induction coils closest to the two connecting copper pipes are connected to the connecting copper pipes so that they cooperate with the connecting copper pipes to form a cooling water channel; one of the connecting copper pipes is provided with a first water inlet connected to the cooling water channel, and the other connecting copper pipe is provided with a water outlet connected to the cooling water channel.

[0013] Preferably, there are six U-shaped magnetic conductors, which are symmetrically installed in pairs on both sides of the three square induction coils.

[0014] Preferably, the first cooling water spray unit includes two first spray blocks symmetrically arranged on both sides of the square induction coil, and the two first spray blocks are provided with first spray holes on the side facing the square induction coil.

[0015] Preferably, the second cooling water spray unit includes second spray blocks symmetrically arranged on both sides of the end of the workpiece output from the quenching channel, and the two second spray blocks are provided with second spray holes on the side facing the output end of the quenching channel.

[0016] Preferably, it further includes a wing plate installed on one side of the two L-shaped base plates; the wing plate is connected to the first spray block and the second spray block.

[0017] This utility model relates to a deformation-resistant quenching induction coil. Through the integrated design of the square induction coil in the heating assembly and the dual cooling of the internal water channel and cooling assembly, the deformation of the induction coil due to high temperature is effectively prevented, ensuring a uniform gap between the induction coil and the workpiece. At the same time, the cooling assembly adopts a dual design of "cooling the induction coil periphery and cooling the workpiece outlet". The first spray block cools the induction coil in real time, and the second spray block precisely cools the workpiece at the workpiece outlet, avoiding the formation of a soft strip on the workpiece due to untimely cooling. The reasonable layout of the magnetic guiding assembly can reduce the dissipation of magnetic lines of force, concentrate energy in the heating zone, and improve heating efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an anti-deformation quenching induction coil according to the present invention.

[0019] Figure 2 for Figure 1 Front view;

[0020] Figure 3 for Figure 1 A schematic diagram of the exploded structure;

[0021] Figure 4 This is a schematic diagram of a partial structure explosion. Detailed Implementation

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

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1 to 4 A quenching inductor for preventing deformation, comprising:

[0026] The base assembly 10 includes L-shaped base plates 101 arranged symmetrically with each other, and an insulating plate 102 installed between the two L-shaped base plates 101.

[0027] Two connecting copper pipes 20 are provided, and the two connecting copper pipes 20 are respectively installed on the opposite sides of the two L-shaped base plates 101.

[0028] The heating assembly 30 includes a plurality of square induction coils 301 arranged side by side to form a quenching channel for the workpiece to pass through; the plurality of square induction coils 301 are all connected to two connecting copper tubes 20.

[0029] The magnetic conductive assembly 40 includes U-shaped magnetic conductors 401 symmetrically mounted on both sides of a plurality of square induction coils 301.

[0030] The cooling assembly 50 includes a first cooling water spray unit surrounding a plurality of square induction coils 301 and a second cooling water spray unit surrounding the workpiece outlet of the quenching channel.

[0031] During operation, the L-shaped base plates 101 are symmetrically arranged and fixed to the machine tool worktable. An insulating plate 102 is located between the two L-shaped base plates 101 to ensure electrical isolation. Two connecting copper pipes 20 are respectively installed on the opposite sides of the two L-shaped base plates. A high-frequency power supply supplies power to multiple parallel square induction coils 301 through the two connecting copper pipes 20, forming a closed current loop and generating an alternating magnetic field. U-shaped magnetic conductors symmetrically installed on both sides of the square induction coils 301 concentrate the magnetic field into the quenching channel formed by the multiple square induction coils 301. The workpiece is rapidly heated as it continuously passes through this channel. In addition, a first cooling water spray unit surrounding the multiple square induction coils 301 continuously sprays water onto the outer wall of the square induction coils 301, carrying away the heat from the coils. A second cooling water spray unit surrounding the workpiece output port of the quenching channel immediately and rapidly cools the heated workpiece circumferentially, achieving quenching.

[0032] In this embodiment, the base assembly 10 adopts symmetrical L-shaped base plates 101, which can be stably fixed on the machine tool worktable, providing solid support for the entire sensor and preventing component displacement due to vibration during operation. At the same time, the insulating plate 102 between the two L-shaped base plates 101 can achieve effective electrical isolation, preventing current leakage or accidental conduction between different components, reducing the risk of equipment leakage, ensuring the electrical safety of operators and equipment, and laying the foundation for long-term stable operation of the sensor. In addition, two connecting copper pipes 20 are respectively installed on the opposite sides of the two L-shaped base plates. On the one hand, they can conveniently connect the high-frequency power supply to the multiple square induction coils 301 to form a smooth closed current loop, reducing resistance loss during current conduction and ensuring efficient conversion of electrical energy into magnetic field energy. On the other hand, the symmetrical connection method makes the current more evenly distributed in the multiple square induction coils 301, avoiding excessive local current that could cause the induction coils to overheat, improving the stability of the heating process, and ensuring the heating quality of the workpiece. The heating assembly 30 consists of multiple square induction coils 301 arranged side by side, forming a quenching channel. This increases the contact heating area between the workpiece and the induction coils, and allows for omnidirectional and continuous heating as the workpiece passes through the channel, avoiding the uneven heating problem caused by traditional single-point heating. Simultaneously, U-shaped magnetic conductors symmetrically installed on both sides of the square induction coils 301 concentrate the alternating magnetic field within the quenching channel, reducing magnetic field dissipation into the surrounding environment and significantly improving magnetic field utilization. This allows the workpiece to quickly reach the required quenching temperature in a short time, significantly improving heating efficiency and meeting the quenching needs of batch workpieces. A first cooling water spray unit is arranged around the periphery of the multiple square induction coils 301, continuously spraying water onto the outer wall of the square induction coils 301. This effectively removes the heat generated by the current in the coils, effectively controlling the temperature of the square induction coils 301 and preventing deformation due to high temperatures. This ensures the dimensional stability of the square induction coils 301 and the quenching channel, thereby ensuring a uniform gap between the workpiece and the square induction coils 301 as the workpiece passes through the channel, maintaining stable heating performance. The second cooling water spray unit is located outside the workpiece output port of the quenching channel. It can quickly cool the workpiece circumferentially immediately after the workpiece is heated, reduce the delay in heat dissipation during the cooling process, avoid problems such as soft bands and uneven hardness caused by untimely cooling, significantly improve the quality of the hardened layer of the workpiece, ensure the mechanical properties of the workpiece after quenching, and meet the processing scenarios of high-precision and high-hardness workpieces.

[0033] In one specific embodiment, the connecting copper pipe is hollow; three square induction coils 301 are arranged side by side, and these three square induction coils are interconnected. The square induction coils 301 closest to the two connecting copper pipes are connected to the connecting copper pipes 20, so that they cooperate with the connecting copper pipes 20 to form a cooling water channel; one of the connecting copper pipes 20 has a first inlet 103 connected to the cooling water channel, and the other connecting copper pipe 20 has an outlet 104 connected to the cooling water channel. Further, the heating assembly 30 includes a hollow copper tube that has been precisely bent, forming an "array" structure, including three square induction coils 301 arranged side by side, which are interconnected to form a continuous cooling water flow channel. Specifically, one end of the hollow copper tube is sealed and welded to the end of one set of connecting copper tubes furthest from the fixed plate. After passing through three square induction coils 301 in sequence, the other end is sealed and welded to another set of connecting copper tubes. The spacing between the three square induction coils 301 is 15-25mm, and the side length of the square induction coils 301 can be flexibly adjusted according to the size of the workpiece to be quenched (adaptation range 50-200mm), ensuring that the workpiece can pass through smoothly and maintain a uniform gap of 2-3mm with the inner wall of the induction coil, avoiding uneven heating. This structure, through the integrated design of multiple square induction coils 301, increases the overall rigidity of the induction coil, while expanding the heating area and improving heating efficiency. The hollow structure, together with the connecting copper tubes 20 and the inlet and outlet water ports, forms a cooling water channel inside the induction coil, which removes heat from the induction coil in real time and prevents high-temperature deformation.

[0034] In one specific embodiment, six U-shaped magnetic conductors 401 are provided, symmetrically installed in pairs on both sides of three square induction coils 301. More specifically, all six U-shaped magnetic conductors 401 are made of high-permeability silicon steel sheets. The six magnetic conductors are divided into three groups of two, symmetrically bonded to the outer walls (the side away from the workpiece) of the three square coils using high-temperature resistant epoxy resin adhesive. The length of the U-shaped magnetic conductors 401 is consistent with the side length of the square induction coils 301, ensuring complete coverage of the magnetic field radiation area of ​​the square coils. The magnetic conductor assembly 40 effectively concentrates magnetic lines of force, reduces the dissipation of the magnetic field to the external environment, concentrates energy in the workpiece heating area inside the square coils, improves heating efficiency by more than 20%, reduces energy consumption, and avoids magnetic field interference to surrounding components.

[0035] In one specific embodiment, the first cooling water spray unit includes two first spray blocks 501 symmetrically arranged on both sides of the square induction coil 301, and the two first spray blocks 501 are provided with first spray holes 502 on the side facing the square induction coil 301. Specifically, the two first spray blocks 501 cooperate with each other to effectively surround and wrap the outer periphery of the square induction coil 301. During operation, cooling water is introduced through the second water inlet 505 installed on the side of the first spray block 501, thereby spraying the square induction coil 301 with the first spray holes 502 to assist in cooling the square induction coil 301 and further prevent deformation of the induction coil.

[0036] In one specific embodiment, the second cooling water spraying unit includes second spray blocks 503 symmetrically arranged on both sides of the end of the workpiece output from the quenching channel, and the two second spray blocks 503 are provided with second spray holes 504 on the side facing the output end of the quenching channel. Specifically, the two second spray blocks 503 cooperate with each other to effectively spray the workpiece output from the quenching channel. During operation, cooling water is delivered into the second spray blocks 503 through a third water inlet 506 connected to the side of the second spray block 503, and output through the second spray holes 504, so that the workpiece is rapidly and uniformly sprayed and cooled around its periphery, avoiding the formation of soft strips due to untimely cooling and ensuring the quality of the hardened layer.

[0037] In one specific embodiment, a wing plate 105 is also included, which is installed on one side of the two L-shaped base plates 101; the wing plate 105 is connected to the first spray block 501 and the second spray block 503. In this embodiment, the wing plate 105 effectively enables the installation and fixation of the first spray block 501 and the second spray block 503.

[0038] This utility model relates to a deformation-resistant quenching induction coil. Through the integrated design of the square induction coil 301 in the heating component 30 and the dual cooling of the internal water channel and cooling component 50, the induction coil is effectively prevented from deforming due to high temperature, ensuring a uniform gap between the induction coil and the workpiece. At the same time, the cooling component 50 adopts a dual design of "cooling the induction coil periphery and cooling the workpiece outlet". The first spray block 501 cools the induction coil in real time, and the second spray block 503 precisely cools the workpiece at the workpiece outlet, avoiding the formation of a soft strip on the workpiece due to untimely cooling. The reasonable layout of the magnetic guiding component 40 can reduce the dissipation of magnetic lines of force and concentrate energy in the heating area, thereby improving heating efficiency.

[0039] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A quenching inductor for preventing deformation, characterized in that: include A base assembly, comprising L-shaped base plates symmetrically arranged between the two L-shaped base plates, and an insulating plate installed between the two L-shaped base plates; Two connecting copper pipes are provided, and the two connecting copper pipes are respectively installed on the opposite sides of the two L-shaped base plates. The heating assembly includes multiple square induction coils arranged side by side to form a quenching channel for the workpiece to pass through; each of the multiple square induction coils is connected to two connecting copper pipes. A magnetic conductive assembly, comprising U-shaped magnetic conductors symmetrically mounted on both sides of the plurality of square induction coils; The cooling assembly includes a first cooling water spray unit surrounding the periphery of the plurality of square induction coils, and a second cooling water spray unit surrounding the workpiece outlet of the quenching channel.

2. The quenching inductor for preventing deformation according to claim 1, characterized in that: The connecting copper pipe is hollow; three square induction coils are arranged side by side, and the three square induction coils are interconnected. The square induction coils closest to the two connecting copper pipes are connected to the connecting copper pipes so that they cooperate with the connecting copper pipes to form a cooling water channel; one of the connecting copper pipes has a first water inlet connected to the cooling water channel, and the other connecting copper pipe has a water outlet connected to the cooling water channel.

3. A quenching inductor for preventing deformation according to claim 2, characterized in that: The U-shaped magnetic conductors are provided in six pairs, symmetrically installed on both sides of the three square induction coils.

4. A quenching inductor for preventing deformation according to claim 1, characterized in that: The first cooling water spray unit includes two first spray blocks symmetrically arranged on both sides of the square induction coil, and the two first spray blocks are provided with first spray holes on the side facing the square induction coil.

5. A quenching inductor for preventing deformation according to claim 4, characterized in that: The second cooling water spray unit includes second spray blocks symmetrically arranged on both sides of the end of the workpiece output from the quenching channel, and the two second spray blocks are provided with second spray holes on the side facing the output end of the quenching channel.

6. A quenching inductor for preventing deformation according to claim 5, characterized in that: It also includes wing plates installed on one side of the two L-shaped base plates; the wing plates are connected to the first spray block and the second spray block.

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