Induction heating equipment for heat treatment of metal pipe fitting

The design of the first crossbeam, clamping and flipping mechanism solves the problems of stability and obstruction when heating metal pipes, and realizes all-round heating and efficient and uniform heating.

CN224077475UActive Publication Date: 2026-04-03郑州五祥电子科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing heat treatment equipment for metal pipes is prone to tilting when heated because the other end is not fixed, and the surface is obstructed when clamped, which affects efficiency.

Method used

The system employs a first crossbeam, a clamping mechanism, and a flipping mechanism. A motor-driven lead screw and a bidirectional screw ensure stable and all-around heating of the metal fittings, preventing surface obstruction.

Benefits of technology

It achieves stable and all-around heating at both ends of the metal pipe, improving heating efficiency and uniformity.

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Abstract

The utility model relates to the field of heat treatment of metal pipe fittings, in particular to induction heating equipment for heat treatment of metal pipe fittings, which comprises a high-frequency heating machine body and a high-frequency heating spiral pipe, a first transverse frame is mounted on the surface of the high-frequency heating machine body, and a transverse moving mechanism is mounted on one side of the first transverse frame. A first fixing plate and a second fixing plate are slidably connected to the two sides of the surface of the first transverse frame respectively, a clamping mechanism is installed at one end of the first transverse frame, a first clamping plate is rotatably connected to the surface of the first fixing plate corresponding to the high-frequency heating spiral pipe, and a second clamping plate is rotatably connected to the surface of the second fixing plate corresponding to the high-frequency heating spiral pipe; according to the induction heating equipment for heat treatment of the metal pipe fitting, the two ends of the metal pipe fitting can be stabilized conveniently, the metal pipe fitting can be heated in all directions, the surface of the metal pipe fitting cannot be shielded, and the heating efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of heat treatment processing of metal pipe fittings, and in particular to an induction heating device for heat treatment processing of metal pipe fittings. Background Technology

[0002] Heat treatment of metal pipe fittings is an important metal processing technology that aims to change the internal structure of metals through steps such as heating, holding, and cooling, thereby improving their mechanical properties, processing performance, or meeting other specific performance requirements.

[0003] Induction heating equipment is based on three fundamental principles: electromagnetic induction, the skin effect, and heat conduction. When an alternating current of a certain frequency passes through the induction coil, an alternating magnetic field with the same frequency as the current change is generated around it. When a metal workpiece is placed inside the induction coil, an induced current, i.e., eddy current, is generated inside the workpiece with the same frequency but opposite direction to that of the induction coil. This eddy current converts electrical energy into heat energy, thereby rapidly heating the workpiece.

[0004] In the heat treatment of metal pipe fittings, induction heating equipment is widely used due to its high efficiency, energy saving and environmental protection characteristics.

[0005] According to Chinese Patent Publication No. CN219893472U, an induction heating device for metal heat treatment includes a high-frequency heating machine body. A high-frequency heating spiral tube is fixedly installed on the top surface of the high-frequency heating machine body. A first fixing plate is fixedly connected to the outer surface of the high-frequency heating machine body. The first fixing plate has an internal hollow structure and a moving device is set inside the first fixing plate. A clamping device is set above the first fixing plate. The movement of the sliding plate drives the movement of the connecting rod, which in turn drives the movement of the first fixing plate. The movement of the first fixing plate then drives the metal workpiece to be inserted into the high-frequency heating spiral tube through two clamping plates. This facilitates the control of the clamps, reduces the risk of workpiece falling and being damaged, and increases the practicality of the device. It effectively and conveniently realizes the insertion of metal parts and their movement within the high-frequency heating tube. Therefore, it is easy to use and operate, has good heating uniformity, and improves the practicality of the device.

[0006] However, when the above-mentioned device performs heat treatment on metal pipe fittings, it clamps and fixes one end of the metal pipe fitting and then places the metal pipe fitting in the induction heating equipment. During heating, the other end of the metal pipe fitting is not fixed and is prone to tilting. At the same time, when fixing the metal pipe fitting, a clamp is required to hold the metal pipe fitting. During heating, the surface of the metal pipe fitting will be blocked. It is necessary to heat one end of the metal pipe fitting and then fix the other end, which affects efficiency. Utility Model Content

[0007] The purpose of this invention is to provide an induction heating device for heat treatment of metal pipe fittings. This device has the advantages of facilitating the stabilization of both ends of the metal pipe fittings, enabling omnidirectional heating of the metal pipe fittings without obstructing the surface of the metal pipe fittings, and improving heating efficiency.

[0008] The purpose of this utility model is to provide an induction heating device for heat treatment of metal pipe fittings, including a high-frequency heating machine body and a high-frequency heating spiral tube for heat treatment of metal pipe fittings. A first crossbeam is installed on the surface of the high-frequency heating machine body to drive the metal pipe fitting to move laterally. A lateral movement mechanism is installed on one side of the first crossbeam to drive the first crossbeam to move. A first fixed plate and a second fixed plate are slidably connected to both sides of the surface of the first crossbeam. A clamping mechanism is installed at one end of the first crossbeam to drive the first fixed plate and the second fixed plate to move relative to each other. A first clamping plate is rotatably connected to the surface of the first fixed plate at the location corresponding to the high-frequency heating spiral tube. A second clamping plate is rotatably connected to the surface of the second fixed plate at the location corresponding to the high-frequency heating spiral tube. A flipping mechanism is installed at one end of the second clamping plate to drive the second clamping plate to rotate. One side of both the first clamping plate and the second clamping plate is in contact with both sides of the metal pipe fitting.

[0009] Furthermore, both the first and second clamping plates have anti-slip grooves on their surfaces to prevent the metal pipes from sliding.

[0010] Furthermore, the transverse mechanism includes a main board fixedly connected to the surface of the high-frequency heating machine body. One end of the main board is fixedly connected to a motor, and the output shaft of the motor is fixedly connected to a rotatable lead screw. The lead screw is rotatably connected to the inner wall of the main board, and the surface of the lead screw is threadedly connected to the lower surface of the first crossbeam. The first crossbeam is slidably connected to the inner wall of the main board surface.

[0011] Furthermore, the clamping mechanism includes a second motor fixedly connected to one end of the first crossbeam. The output shaft of the second motor is fixedly connected to a rotatable bidirectional screw, and both sides of the surface of the bidirectional screw are threadedly connected to the first fixed plate and the second fixed plate.

[0012] Furthermore, the flipping mechanism includes a gear one fixedly connected to one end of the second clamping plate, and a transmission component meshes with the surface of the gear one.

[0013] Furthermore, the transmission assembly includes a stabilizing plate fixedly connected to one side of the second fixed plate, a motor three fixedly connected to one end of the stabilizing plate, and a gear two fixedly connected to the output shaft of the motor three, with the gear two meshing with the surface of the gear one.

[0014] The working principle and usage principle of this utility model are as follows: A metal pipe is placed between the first clamping plate and the second clamping plate, passing through a high-frequency heating spiral tube. Motor 2 drives a bidirectional screw to rotate, causing the bidirectional screw to move the first fixing plate and the second fixing plate relative to each other on the inner wall of the first crossbeam. The first fixing plate and the second fixing plate, along with the first clamping plate, contact both ends of the metal pipe to fix it. The high-frequency heating spiral tube is activated by the high-frequency heating machine body to heat the metal pipe. Motor 1 drives a lead screw to rotate, causing the lead screw to move the first crossbeam horizontally across the surface of the main board. The first crossbeam moves the metal tube along the inner wall of the high-frequency heating spiral tube, allowing for complete heating of the entire surface of the metal tube. The third motor drives the second gear to rotate, which in turn drives the first gear to rotate, which in turn drives the second clamping plate to rotate. The second clamping plate then drives the metal tube to rotate, while the other end of the metal tube drives the first clamping plate to rotate within the inner wall of the first fixed plate. This rotation during the heating of the metal tube facilitates uniform heating and secures both ends of the metal tube. It allows for omnidirectional heating of the metal tube without obstructing its surface, thus improving heating efficiency.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The metal pipe is placed between the first clamping plate and the second clamping plate, passing through the high-frequency heating spiral tube. The clamping mechanism is activated, causing the first and second fixing plates to move relative to each other. The first and second fixing plates then contact the first and second clamping plates at both ends of the metal pipe, fixing it in place. The high-frequency heating spiral tube is activated by the high-frequency heating machine body to heat the metal pipe. The transverse mechanism is activated, moving the first transverse frame, which in turn moves the metal pipe along the inner wall of the high-frequency heating spiral tube, allowing for complete heating of the entire surface of the metal pipe. The flipping mechanism is activated, causing the second clamping plate to rotate within the second fixing plate, thus rotating the metal pipe. The other end of the metal pipe rotates the first clamping plate within the first fixing plate. This rotation during heating facilitates uniform heating of the metal pipe, ensures stability at both ends, and allows for omnidirectional heating without obstructing the surface of the metal pipe, thus improving heating efficiency.

[0016] 1. Compared with the prior art, this utility model has the advantages of facilitating the stabilization of both ends of the metal pipe, enabling all-round heating of the metal pipe without obstructing the surface of the metal pipe, and improving heating efficiency.

[0017] 2. Compared with the prior art, the present invention has the advantage of rotating the metal pipe during heating, which facilitates uniform heating of the metal pipe. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of an induction heating device for heat treatment of metal pipe fittings according to this utility model;

[0019] Figure 2 This is a side view of an induction heating device for heat treatment of metal pipe fittings according to the present invention.

[0020] Figure 3 This is a cross-sectional structural diagram of an induction heating device for heat treatment of metal pipe fittings according to the present invention;

[0021] Figure 4 This is a partial structural schematic diagram of an induction heating device for heat treatment of metal pipe fittings according to this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. High-frequency heating machine body; 2. High-frequency heating spiral tube; 3. First crossbeam; 4. First fixing plate; 5. Second fixing plate; 6. First clamping plate; 7. Second clamping plate; 8. Anti-slip groove; 9. Main board; 10. Motor 1; 11. Lead screw; 12. Motor 2; 13. Bidirectional screw; 14. Stabilizing plate; 15. Motor 3; 16. Gear 2; 17. Gear 1. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of the embodiments of this application easier to understand, the embodiments of this application are further described below in conjunction with the figures and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of this application and are not intended to limit the embodiments of this application.

[0024] This specific embodiment includes an induction heating device for heat treatment of metal pipe fittings, such as... Figure 1-4 As shown, an induction heating device for heat treatment of metal pipe fittings includes a high-frequency heating machine body 1 and a high-frequency heating spiral tube 2 for heat treatment of metal pipe fittings. A first crossbeam 3 is mounted on the surface of the high-frequency heating machine body 1 to drive the metal pipe fitting to move laterally. A lateral movement mechanism is mounted on one side of the first crossbeam 3 to drive the first crossbeam 3 to move. A first fixing plate 4 and a second fixing plate 5 are slidably connected to both sides of the surface of the first crossbeam 3, respectively. A clamping mechanism is mounted at one end of the first crossbeam 3 to drive the first fixing plate 4 and the second fixing plate 5 to move relative to each other. A first clamping plate 6 is rotatably connected to the surface of the first fixing plate 4 at the location corresponding to the high-frequency heating spiral tube 2. A second clamping plate 7 is rotatably connected to the surface of the second fixing plate 5 at the location corresponding to the high-frequency heating spiral tube 2. A flipping mechanism is mounted at one end of the second clamping plate 7 to drive the second clamping plate 7 to rotate. One side of the first clamping plate 6 and the second clamping plate 7 are in contact with both sides of the metal pipe fitting.

[0025] Both the first clamping plate 6 and the second clamping plate 7 have anti-slip grooves 8 on their surfaces to prevent the metal pipe from sliding when clamping it.

[0026] Through the above technical solution, the metal pipe is placed between the first clamping plate 6 and the second clamping plate 7, and passes through the high-frequency heating spiral tube 2. The clamping mechanism is activated, causing the first fixing plate 4 and the second fixing plate 5 to move relative to each other. The first fixing plate 4 and the second fixing plate 5 cause the first clamping plate 6 and the second clamping plate 7 to contact both ends of the metal pipe and fix the metal pipe. The high-frequency heating machine body 1 activates the high-frequency heating spiral tube 2 to heat the metal pipe. The transverse mechanism is activated, causing the first transverse frame 3 to move, so that the first transverse frame 3 moves and heats the metal pipe along the inner wall of the high-frequency heating spiral tube 2, which can heat the entire surface of the metal pipe. The flipping mechanism is activated, causing the second clamping plate 7 to rotate on the inner wall of the second fixing plate 5, so that the second clamping plate 7 drives the metal pipe to rotate. The other end of the metal pipe drives the first clamping plate 6 to rotate on the inner wall of the first fixing plate 4. The rotation during the heating of the metal pipe facilitates uniform heating of the metal pipe, facilitates the stabilization of both ends of the metal pipe, and can heat the metal pipe from all directions without obstructing the surface of the metal pipe, thus improving heating efficiency.

[0027] like Figure 1-4 As shown, the transverse mechanism includes a main board 9 fixedly connected to the surface of the high-frequency heating machine body 1. One end of the main board 9 is fixedly connected to a motor 10. The output shaft of the motor 10 is fixedly connected to a rotatable lead screw 11. The lead screw 11 is rotatably connected to the inner wall of the main board 9. The surface of the lead screw 11 is threadedly connected to the lower surface of the first crossbeam 3, and the first crossbeam 3 is slidably connected to the inner wall of the main board 9.

[0028] The clamping mechanism includes a second motor 12 fixedly connected to one end of the first crossbeam 3. The output shaft of the second motor 12 is fixedly connected to a rotatable bidirectional screw 13. Both sides of the surface of the bidirectional screw 13 are threadedly connected to the first fixing plate 4 and the second fixing plate 5.

[0029] Through the above technical solution, motor 10 drives lead screw 11 to rotate, causing lead screw 11 to drive the first crossbeam 3 to move laterally on the surface of main board 9. Motor 2 drives bidirectional screw 13 to rotate, causing bidirectional screw 13 to drive the first fixing plate 4 and the second fixing plate 5 to move relative to each other on the inner wall of the first crossbeam 3. The first fixing plate 4 and the second fixing plate 5 drive the first clamping plate 6 and the second clamping plate 7 to contact the two ends of the metal pipe and fix the metal pipe.

[0030] like Figure 1-4 As shown, the flipping mechanism includes a gear 17 fixedly connected to one end of the second clamping plate 7, and a transmission component meshes with the surface of the gear 17.

[0031] The transmission assembly includes a stabilizing plate 14 fixedly connected to one side of the second fixed plate 5. One end of the stabilizing plate 14 is fixedly connected to a motor 15. The output shaft of the motor 15 is fixedly connected to a gear 16. The gear 16 meshes with the surface of the gear 17.

[0032] Through the above technical solution, motor 315 drives gear 216 to rotate, which in turn drives gear 17 to rotate, which in turn drives the second clamping plate 7 to rotate, which in turn drives the metal pipe to rotate. The other end of the metal pipe drives the first clamping plate 6 to rotate inside the first fixed plate 4. The metal pipe rotates when it is heated, which facilitates uniform heating of the metal pipe.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An induction heating device for heat treatment of metal pipe fittings, comprising a high-frequency heating machine body (1) and a high-frequency heated spiral tube (2) for heat treatment of metal pipe fittings, characterized in that: The surface of the high-frequency heating machine body (1) is equipped with a first crossbeam (3) that drives the metal pipe to move laterally. A lateral movement mechanism that drives the first crossbeam (3) to move is installed on one side of the first crossbeam (3). A first fixed plate (4) and a second fixed plate (5) are slidably connected to both sides of the surface of the first crossbeam (3). A clamping mechanism that drives the first fixed plate (4) and the second fixed plate (5) to move relative to each other is installed at one end of the first crossbeam (3). A first clamping plate (6) is rotatably connected to the surface of the first fixed plate (4) at the high-frequency heating spiral tube (2). A second clamping plate (7) is rotatably connected to the surface of the second fixed plate (5) at the high-frequency heating spiral tube (2). A flipping mechanism that drives the second clamping plate (7) to rotate is installed at one end of the second clamping plate (7). One side of the first clamping plate (6) and the second clamping plate (7) are in contact with both sides of the metal pipe.

2. The induction heating equipment for heat treatment of metal pipe fittings according to claim 1, characterized in that: Both the first clamping plate (6) and the second clamping plate (7) have anti-slip grooves (8) on their surfaces to prevent the metal pipe fittings from sliding.

3. An induction heating device for heat treatment of metal pipe fittings according to claim 1 or 2, characterized in that: The transverse mechanism includes a main board (9) fixedly connected to the surface of the high-frequency heating machine body (1). One end of the main board (9) is fixedly connected to a motor (10). The output shaft of the motor (10) is fixedly connected to a rotatable lead screw (11). The lead screw (11) is rotatably connected to the inner wall of the main board (9). The surface of the lead screw (11) is threadedly connected to the lower surface of the first crossbeam (3), and the first crossbeam (3) is slidably connected to the inner wall of the main board (9).

4. An induction heating device for heat treatment of metal pipe fittings according to claim 1 or 2, characterized in that: The clamping mechanism includes a second motor (12) fixedly connected to one end of the first crossbeam (3). The output shaft of the second motor (12) is fixedly connected to a rotatable bidirectional screw (13). Both sides of the surface of the bidirectional screw (13) are threadedly connected to the first fixing plate (4) and the second fixing plate (5).

5. The induction heating equipment for heat treatment of metal pipe fittings according to claim 3, characterized in that: The clamping mechanism includes a second motor (12) fixedly connected to one end of the first crossbeam (3). The output shaft of the second motor (12) is fixedly connected to a rotatable bidirectional screw (13). Both sides of the surface of the bidirectional screw (13) are threadedly connected to the first fixing plate (4) and the second fixing plate (5).

6. An induction heating device for heat treatment of metal pipe fittings according to claim 1, 2 or 5, characterized in that: The flipping mechanism includes a gear (17) fixedly connected to one end of the second clamping plate (7), and a transmission component is engaged on the surface of the gear (17).

7. The induction heating equipment for heat treatment of metal pipe fittings according to claim 3, characterized in that: The flipping mechanism includes a gear (17) fixedly connected to one end of the second clamping plate (7), and a transmission component is engaged on the surface of the gear (17).

8. The induction heating equipment for heat treatment of metal pipe fittings according to claim 4, characterized in that: The flipping mechanism includes a gear (17) fixedly connected to one end of the second clamping plate (7), and a transmission component is engaged on the surface of the gear (17).

9. The induction heating equipment for heat treatment of metal pipe fittings according to claim 6, characterized in that: The transmission assembly includes a stabilizing plate (14) fixedly connected to one side of the second fixed plate (5). One end of the stabilizing plate (14) is fixedly connected to a motor (15). The output shaft of the motor (15) is fixedly connected to a gear (16). The gear (16) meshes with the surface of the gear (17).

10. An induction heating device for heat treatment of metal pipe fittings according to claim 7 or 8, characterized in that: The transmission assembly includes a stabilizing plate (14) fixedly connected to one side of the second fixed plate (5). One end of the stabilizing plate (14) is fixedly connected to a motor (15). The output shaft of the motor (15) is fixedly connected to a gear (16). The gear (16) meshes with the surface of the gear (17).

Citation Information

Patent Citations

  • Induction heating equipment for metal hot working

    CN219893472U