Metal material heat treatment apparatus and heat treatment method

Abstract

The application belongs to the technical field of metal heat treatment, and discloses a metal material heat treatment device, which comprises a box body, four groups of limiting stand columns are arranged in the box body, two groups of swing clamping assemblies are swingly arranged on the outer side of the limiting stand columns, and a metal material heat treatment method is further provided, which comprises pretreatment and equipment debugging: cleaning the surface oil stains and oxide scales of the workpiece. Through cooperation of the swing clamping assembly and the induction heating ring and other structures, the swing clamping assembly can be switched to clamp the position by the up-and-down moving induction heating ring, so that the metal material can be clamped, the middle workpiece can be effectively ensured to be clamped at all times through switching clamping, the workpiece can be stably ensured, the clamping mechanism can not affect the heating of the induction heating ring, and the metal structure can not exist close to the inner side of the induction heating ring.

Description

Technical Field

[0001] This invention belongs to the field of metal heat treatment technology, specifically a heat treatment device and method for metal materials. Background Technology

[0002] In metal processing, to adapt to different processing conditions such as cutting, forging, and forming, and to improve processing efficiency and finished product quality, induction coils are often used for rapid heating of metal materials. This method relies on the principle of electromagnetic induction eddy currents, allowing the metal to heat up internally at a much faster rate than traditional heating methods. It can precisely match the needs of different processing scenarios. Heating before cutting reduces metal hardness, improves cutting performance, and reduces tool wear; heating during forging increases metal plasticity, facilitating shaping and preventing cracking; preheating before forming reduces stress deformation and ensures dimensional accuracy. During operation, it is necessary to first clean the material surface of oil and oxide scale, match the appropriate induction coil, and adjust the power and frequency parameters to ensure uniform heating. After heating, temperature is controlled and maintained according to processing requirements, followed by cooling as needed. This method not only meets the differentiated requirements of different processing methods for metal properties but also shortens heating time, reduces energy consumption, and significantly improves the stability and efficiency of the overall processing flow. It is a key pretreatment process in metal processing that adapts to multiple working conditions.

[0003] For example, the invention disclosed in CN116770024A discloses a heat treatment processing equipment and method for metal materials, including a base, a transparent tempered glass frame, a clamping cover, a support tube, a manual clamping device, a transfer case, a common speed-regulating motor, a vortex impeller assembly, a rectangular cover, a first lead screw pair, and an AC heating inductor. By starting the forward and reverse speed-regulating motor, the first lead screw pair is driven to rotate, thereby causing the AC heating inductor to perform top and bottom heat treatment on the surface of the metal material without manual movement. Starting the common speed-regulating motor drives the support tube to rotate, thereby driving the manual clamping device that holds the metal material to rotate. The rotation method ensures that the metal material is heated evenly during heat treatment, avoiding uneven heating of the metal material during surface heat treatment. Furthermore, the air in the heating area is extracted, which is beneficial to heat treatment and is inventive.

[0004] In existing technologies, the metal material is rotated by clamping to make the heat treatment of the workpiece more uniform. However, the existing heat-insulating ceramic clamped on the outside of the metal workpiece will affect the magnetic field, thereby blocking the heating effect to a certain extent. This not only easily leads to uneven heating, but also easily affects the metal structure near the heat-insulating ceramic.

[0005] Therefore, a heat treatment apparatus and method for metallic materials are proposed to solve the problems raised in the background art. Summary of the Invention

[0006] To address the problems mentioned in the background art, the present invention provides a heat treatment apparatus and method for metal materials, which solves the problem that the existing heat-insulating ceramic clamped on the outside of the metal workpiece affects the magnetic field, thereby blocking the heating effect to a certain extent. This not only easily leads to uneven heating, but also easily affects the metal structure near the heat-insulating ceramic.

[0007] To address the problems mentioned in the background art, the present invention provides a heat treatment device for metal materials, including a housing, wherein four sets of limiting columns are arranged inside the housing, and two sets of swing clamping assemblies are swung around the outside of the limiting columns. The swing clamping assembly includes two sets of welded gears. A rotating sleeve is rotatably mounted on the side of the welded gears away from the limiting column. A splicing shaft is welded and installed between the two sets of rotating sleeves. A swing bracket is welded and installed on the outer side of the middle part of the splicing shaft. A sliding column is slidably mounted on the inner side of the rotating sleeve. A set of welding plates is welded and installed at the lower end of the two sets of sliding columns. A movable ring is welded and installed on the side of the welding plate near the sliding column. A connecting bracket is installed at the end of the two sets of sliding columns away from the welding plate. A mold frame is installed on the side of the connecting bracket away from the limiting column. The swing clamping assembly includes an induction heating ring. A fixed ring is installed on the outer side of the induction heating ring through a bracket. The fixed ring is movably mounted on the inner side of the mold frame.

[0008] Preferably, a set of sliding plates is welded to the bottom of the four sets of limiting columns, and limiting grooves are opened on the front and back of the sliding plates. An adjustment handle is welded to one side of the sliding plate, and a support platform is installed on the top of the sliding plate.

[0009] Preferably, a welding ring is welded and installed on the side of the welding gear near the limiting column, and the welding ring is welded and installed on both sides of the limiting column. A positioning bearing is embedded on the side of the welding gear near the rotating sleeve. The splicing shaft is welded and installed on the inner side of the positioning bearing. The connecting bracket and the rotating sleeve are elastically connected by a return spring, and the return spring is sleeved on the outer side of the sliding column.

[0010] Preferably, an adaptive clamping assembly is provided on the outer side of the swing bracket; The adaptive clamping assembly includes a swing arm, which is rotatably disposed on the inner side of the swing bracket away from the splicing axis. A limit guide rod is installed on the inner side of the swing bracket, and an adjustment slider is slidably disposed on the outer side of the limit guide rod. The end of the adjustment slider near the splicing axis is elastically connected to the swing bracket by a strong spring, and the strong spring is sleeved on the outer side of the limit guide rod.

[0011] Preferably, a sliding bracket is installed on the outer side of the adjusting slider, a torsion spring shaft is provided on the inner side of the swing arm away from the swing bracket, and eccentric clamping wheels are fixedly installed at both ends of the torsion spring shaft. A limit bracket is welded and installed in the middle of the side of the swing arm near the sliding bracket, and a drive plate is rotatably arranged between the limit bracket and the sliding bracket.

[0012] Preferably, a controller is provided on the front of the box, a sliding frame is installed on one side of the lower end of the box, and two sets of limiting slide bars are installed on the sliding frame and the inner side of the box. Two sets of fixing plates are welded and installed on the top of the box.

[0013] Preferably, a dual-axis motor is fixedly installed in the middle of the two sets of fixed plates by bolts. The output end of the dual-axis motor has two sets of drive shafts, and the end of the drive shaft is equipped with an active helical gear. The bottom of the active helical gear is engaged with a transmission helical gear. The bottom of the transmission helical gear is equipped with a transmission shaft, and the bottom of the transmission shaft is equipped with an adjusting screw.

[0014] Preferably, a limiting frame is rotatably provided on the outer side of the adjusting screw, and the limiting frame is fixedly installed on the inner side of the housing. A limiting housing is movably provided on the outer side of the active helical gear and the transmission helical gear, and the limiting housing is fixedly installed on the top of the housing.

[0015] Preferably, welding brackets are installed on both sides of the induction heating ring, and a threaded sleeve is installed at the end of the welding bracket away from the induction heating ring. The threaded sleeve is slidably disposed on the outside of the adjusting screw, and a connector is installed on one side of the induction heating ring.

[0016] A heat treatment method for metallic materials: S1. Pre-treatment and equipment debugging: Clean the oil and oxide scale on the surface of the workpiece, match the induction coil according to the shape and size of the workpiece, and adjust the core parameters such as the frequency and power of the equipment to ensure uniform heating. S2. Induction heating and constant temperature holding: The workpiece is self-heated by the electromagnetic induction eddy current effect, and after the temperature is raised to the target temperature, it is kept at a constant temperature to promote the full transformation of the internal structure of the workpiece. S3. Controlled-speed cooling and shaping: After the heat preservation is completed, the workpiece is quickly removed, and water cooling, oil cooling or other suitable cooling methods are selected according to the material to precisely control the cooling rate and obtain the target performance structure. S4. Post-processing and quality inspection: The workpiece is subjected to low-temperature aging treatment to eliminate internal stress, and then defects are checked by hardness testing, metallographic analysis, etc. After passing the test, the processing is completed.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through the coordinated arrangement of a swing clamping assembly and an induction heating ring, facilitates the switching of the clamping position of the swing clamping assembly by the up-and-down movement of the induction heating ring. This ensures that the metal material remains clamped. During the downward movement of the induction heating ring, the outer fixing ring moves and inserts into the inner side of the mold frame, applying pressure to the mold frame. As the mold frame continues to move downward, the connecting bracket, movable ring, and sliding column move along the rotating sleeve. During this movement, the toothed block on the movable ring separates from the welding gear. After separation, the induction heating ring continues to move downward, pushing the splicing shaft and the swing bracket to rotate 60 degrees along the positioning bearing. After the rotation is completed, the fixing ring separates from the mold frame. When the swing bracket completes its swing, the lower clamping will switch to upper clamping. By switching the clamping positions, the middle workpiece can be effectively kept in a clamped state at all times. This ensures the stability of the workpiece and avoids the clamping mechanism affecting the heating of the induction heating ring. It also prevents the metal structure from being affected by the proximity of the metal structure to the inner side of the induction heating ring.

[0018] This invention, through the combination of adaptive clamping components and swing clamping components, facilitates the clamping of metal workpieces of varying thicknesses using continuous pressure. When the swing bracket flips, the eccentric clamping block on the swing arm initially clamps the workpiece. A torsion spring shaft assists in rotating the eccentrically clamped workpiece for clamping correction. When the workpiece is large, the swing bracket continues to flip, and the pressure pushes the swing arm outwards along the end of the swing bracket. During this flipping process, the drive plate pushes the sliding bracket and adjusting slider to slide along the outside of the limit guide rod. This sliding process compresses a powerful spring, which provides thrust, effectively increasing the clamping strength. Placing the workpiece on top of the support platform effectively prevents workpiece swaying. The adaptive clamping components allow for flexible adaptation to workpieces of varying thicknesses. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic cross-sectional view of the adaptive clamping component of the present invention; Figure 4 This is a schematic diagram of the sliding plate structure of the present invention; Figure 5 This is a schematic cross-sectional view of the swing clamping assembly of the present invention; Figure 6 For the present invention Figure 5 Enlarged cross-sectional view at point B; Figure 7 This is a schematic diagram of the limiting frame structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged cross-sectional view of section C.

[0020] In the diagram: 100, housing; 101, controller; 102, sliding frame; 103, limit slider; 104, fixing plate; 200. Adjusting screw; 201. Dual-axis motor; 202. Drive shaft; 203. Active helical gear; 204. Transmission helical gear; 205. Transmission shaft; 206. Limiting housing; 207. Limiting frame; 300. Induction heating ring; 301. Threaded sleeve; 302. Welding bracket; 303. Retaining ring; 304. Connector; 400. Limiting column; 401. Sliding plate; 402. Limiting slide groove; 403. Adjusting handle; 404. Support platform; 001. Adaptive clamping assembly; 500. Eccentric clamping wheel; 501. Swing bracket; 502. Limiting guide rod; 503. High-strength spring; 504. Adjusting slider; 505. Sliding bracket; 506. Drive plate; 507. Swing arm; 508. Limiting bracket; 509. Torsion spring shaft; 002, Swinging clamping assembly; 600, Movable ring; 601, Welding ring; 602, Welding gear; 603, Positioning bearing; 604, Splicing shaft; 605, Rotating sleeve; 606, Sliding column; 607, Welding plate; 608, Connecting bracket; 609, Return spring; 610, Frame. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1 to 8 As shown, the present invention provides a heat treatment device for metal materials, including a box 100, four sets of limiting columns 400 are arranged inside the box 100, and two sets of swing clamping assemblies 002 are swung on the outside of the limiting columns 400. The swing clamping assembly 002 includes two sets of welded gears 602. A rotating sleeve 605 is rotatably mounted on the side of the welded gears 602 away from the limiting column 400. A splicing shaft 604 is welded and installed between the two sets of rotating sleeves 605. A swing bracket 501 is welded and installed on the outer side of the middle part of the splicing shaft 604. A sliding column 606 is slidably mounted on the inner side of the rotating sleeve 605. A set of welding plates 607 is welded and installed at the lower end of the two sets of sliding columns 606. A movable ring 600 is welded and installed on the side of the welding plate 607 near the sliding column 606. A connecting bracket 608 is installed at the end of the two sets of sliding columns 606 away from the welding plate 607. A frame 610 is installed on the side of the connecting bracket 608 away from the limiting column 400. The swing clamping assembly 002 includes an induction heating ring 300. A fixing ring 303 is installed on the outer side of the induction heating ring 300 through a bracket. The fixing ring 303 is movably mounted on the inner side of the frame 610.

[0023] Using the above scheme: the housing 100 can provide an installation position for the inner structure, and the limiting column 400 can restrict the outer and inner structures. The welding gear 602 can work with the movable ring 600 to lock the swing bracket 501. The splicing shaft 604 can connect the two sets of rotating sleeves 605. When rotating and adjusting, the swing bracket 501 will be adjusted in angle simultaneously. The sliding column 606 can slide and adjust along the inner side of the rotating sleeve 605. The welding plate 607 is used to connect the sliding column 606 and the movable ring 600. The movable ring 600 is equipped with a tooth block near the welding plate 607. The tooth block can be combined with the welding gear 602 for locking. The connecting bracket 608 can weld the other end of the two sets of sliding columns 606. The frame 610 can be combined with the fixed ring 303 to achieve the effect of power transmission. The induction heating ring 300 can quickly heat the metal workpiece by electromagnetic induction.

[0024] like Figure 2 - Figure 5 As shown, a set of sliding plates 401 are welded and installed at the bottom of the four sets of limiting columns 400, and limiting grooves 402 are opened on the front and back of the sliding plates 401. An adjustment handle 403 is welded and installed on one side of the sliding plates 401, and a support platform 404 is installed on the top of the sliding plates 401.

[0025] A welding ring 601 is welded and installed on the side of the welding gear 602 near the limiting column 400, and the welding ring 601 is welded and installed on both sides of the limiting column 400. A positioning bearing 603 is embedded on the side of the welding gear 602 near the rotating sleeve 605. The splicing shaft 604 is welded and installed on the inner side of the positioning bearing 603. The connecting bracket 608 and the rotating sleeve 605 are elastically connected by a return spring 609, which is sleeved on the outer side of the sliding column 606.

[0026] Using the above scheme: the sliding plate 401 can slide and adjust along the inner side of the sliding frame 102. The limiting slide groove 402 can be combined with the limiting slide bar 103 to ensure the stability of the sliding adjustment. The adjusting handle 403 can provide a grip for the user to easily control the sliding plate 401 to slide and adjust laterally. The support platform 404 is made of heat-insulating ceramic and can provide support for the workpiece. The welding ring 601 is used to fix the welding gear 602 to the limiting column 400. The positioning bearing 603 can assist the splicing shaft 604 to rotate and adjust.

[0027] like Figure 5 and Figure 6 As shown, an adaptive clamping assembly 001 is provided on the outer side of the swing bracket 501; The adaptive clamping assembly 001 includes a swing arm 507, which is rotatably disposed on the inner side of the swing bracket 501 away from the splicing shaft 604. A limit guide rod 502 is installed on the inner side of the swing bracket 501, and an adjusting slider 504 is slidably disposed on the outer side of the limit guide rod 502. The end of the adjusting slider 504 near the splicing shaft 604 is elastically connected to the swing bracket 501 by a strong spring 503, which is sleeved on the outer side of the limit guide rod 502.

[0028] A sliding bracket 505 is installed on the outer side of the adjusting slider 504. A torsion spring shaft 509 is provided on the inner side of the swing arm 507 away from the swing bracket 501. Eccentric clamping wheels 500 are fixedly installed at both ends of the torsion spring shaft 509. A limit bracket 508 is welded and installed in the middle of the side of the swing arm 507 close to the sliding bracket 505. A drive plate 506 is rotatably arranged between the limit bracket 508 and the sliding bracket 505.

[0029] Using the above scheme: the swing arm 507 can swing and adjust along the swing bracket 501 to achieve assisted adaptive clamping; the limiting guide rod 502 can limit the adjusting slider 504; the sliding bracket 505 can limit the drive plate 506; the strong spring 503 can provide thrust to the adjusting slider 504, thereby effectively providing assisted clamping effect through thrust; the torsion spring shaft 509 can assist the eccentric clamping wheel 500 to adaptively clamp the workpiece; the limiting bracket 508 can cooperate with the sliding bracket 505 to limit the drive plate 506, and thrust can be transmitted through the drive plate 506.

[0030] like Figure 1 , Figure 7 and Figure 8As shown, a controller 101 is provided on the front of the box 100, a sliding frame 102 is installed on one side of the lower end of the box 100, and two sets of limiting slide bars 103 are installed on the sliding frame 102 and the inner side of the box 100. Two sets of fixing plates 104 are welded and installed on the top of the box 100.

[0031] A dual-axis motor 201 is fixedly installed in the middle of the two sets of fixed plates 104 by bolts. The output end of the dual-axis motor 201 has two sets of drive shafts 202, and the end of the drive shaft 202 is equipped with an active helical gear 203. The bottom of the active helical gear 203 is meshed with a transmission helical gear 204. The bottom of the transmission helical gear 204 is equipped with a transmission shaft 205, and the bottom of the transmission shaft 205 is equipped with an adjusting screw 200.

[0032] A limiting frame 207 is rotatably provided on the outer side of the adjusting screw 200, and the limiting frame 207 is fixedly installed on the inner side of the housing 100. A limiting housing 206 is movably provided on the outer side of the active helical gear 203 and the transmission helical gear 204, and the limiting housing 206 is fixedly installed on the top of the housing 100.

[0033] Welding brackets 302 are installed on both sides of the induction heating ring 300, and a threaded sleeve 301 is installed on the end of the welding bracket 302 away from the induction heating ring 300. The threaded sleeve 301 is slidably disposed on the outside of the adjusting screw 200. A connector 304 is installed on one side of the induction heating ring 300.

[0034] Using the above scheme: the controller 101 can assist in control and can energize the induction heating ring 300 through the connector 304. The sliding frame 102 can restrict the inner sliding plate 401. The fixed plate 104 can restrict the inner dual-axis motor 201. When the dual-axis motor 201 is energized, it will drive the two sets of drive shafts 202 to rotate. The active helical gear 203 and the transmission helical gear 204 cooperate to drive the transmission shaft 205 and the adjusting screw 200 to rotate and adjust. The rotation of the two sets of adjusting screws 200 simultaneously drives the threaded sleeve 301 to move up and down for adjustment.

[0035] A heat treatment method for metallic materials: S1. Pre-treatment and equipment debugging: Clean the oil and oxide scale on the surface of the workpiece, match the induction coil according to the shape and size of the workpiece, and adjust the core parameters such as the frequency and power of the equipment to ensure uniform heating. S2. Induction heating and constant temperature holding: The workpiece is self-heated by the electromagnetic induction eddy current effect, and after the temperature is raised to the target temperature, it is kept at a constant temperature to promote the full transformation of the internal structure of the workpiece. S3. Controlled-speed cooling and shaping: After the heat preservation is completed, the workpiece is quickly removed, and water cooling, oil cooling or other suitable cooling methods are selected according to the material to precisely control the cooling rate and obtain the target performance structure. S4. Post-processing and quality inspection: The workpiece is subjected to low-temperature aging treatment to eliminate internal stress, and then defects are checked by hardness testing, metallographic analysis, etc. After passing the test, the processing is completed.

[0036] The working principle and usage process of this invention are as follows: The workpiece support is inserted into the middle of the fixture from top to bottom until it reaches the support platform 404. The sliding plate 401 and the top structure are pushed into the housing 100 along the limiting slide bar 103 by grasping the adjusting handle 403. After being pushed in, the dual-axis motor 201 is rotated by controlling it. When rotating, the threaded sleeve 301 and the induction heating ring 300 are moved downward by adjusting the lead screw 200. During the movement, the induction heating ring 300 heats the workpiece. When the fixed ring 303 moves down and is embedded in the inner side of the frame 610, the downward thrust will compress the return spring 609. The sliding column 606 pushes the tooth block of the movable ring 600 to separate from the welding gear 602. After separation, it continues to move down and will drive the swing bracket 501 to swing ninety degrees along the positioning bearing 603 through the splicing shaft 604. After the fixed ring 303 is separated, the return spring 609 will push the tooth block of the movable ring 600 to be embedded in the outer side of the welding gear 602 for locking. When the swing bracket 501 is swinging, the swing arm 507 will flip along the axis at the end of the swing bracket 501. During the flipping process, the drive plate 506 will push the sliding bracket 505 and the adjusting slider 504 to slide along the limit guide rod 502. The strong spring 503 can push the swing arm 507 and the eccentric clamping wheel 500 to clamp the workpiece.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for metallic materials, comprising a housing (100), characterized in that: The box (100) is provided with four sets of limiting columns (400) inside, and two sets of swing clamping assemblies (002) are provided on the outside of the limiting columns (400). The swing clamping assembly (002) includes two sets of welding gears (602). A rotating sleeve (605) is rotatably mounted on the side of each welding gear (602) away from the limiting column (400). A splicing shaft (604) is welded between the two sets of rotating sleeves (605). A swing bracket (501) is welded to the outer side of the middle of the splicing shaft (604). A sliding column (606) is slidably mounted on the inner side of each rotating sleeve (605). A welding plate (607) is welded to the lower end of the two sets of sliding columns (606). (607) A movable ring (600) is welded and installed on one side near the sliding column (606). A connecting bracket (608) is installed on one end of the two sets of sliding columns (606) away from the welding plate (607). A frame (610) is installed on the side of the connecting bracket (608) away from the limiting column (400). The swing clamping assembly (002) includes an induction heating ring (300). A fixing ring (303) is installed on the outer side of the induction heating ring (300) through a bracket. The fixing ring (303) is movably arranged on the inner side of the frame (610).

2. The heat treatment apparatus for metallic materials according to claim 1, characterized in that: A set of sliding plates (401) are welded to the bottom of the four sets of limiting columns (400), and limiting grooves (402) are opened on the front and back of the sliding plates (401). An adjustment handle (403) is welded to one side of the sliding plate (401), and a support platform (404) is installed on the top of the sliding plate (401).

3. The heat treatment apparatus for metallic materials according to claim 1, characterized in that: A welding ring (601) is welded and installed on the side of the welding gear (602) near the limiting column (400), and the welding ring (601) is welded and installed on both sides of the limiting column (400). A positioning bearing (603) is embedded on the side of the welding gear (602) near the rotating sleeve (605). The splicing shaft (604) is welded and installed on the inner side of the positioning bearing (603). The connecting bracket (608) and the rotating sleeve (605) are elastically connected by a return spring (609). The return spring (609) is sleeved on the outer side of the sliding column (606).

4. The heat treatment apparatus for metallic materials according to claim 1, characterized in that: An adaptive clamping assembly (001) is provided on the outer side of the swing bracket (501). The adaptive clamping assembly (001) includes a swing arm (507), which is rotatably disposed on the inner side of the swing bracket (501) away from the splicing shaft (604). A limit guide rod (502) is installed on the inner side of the swing bracket (501), and an adjustment slider (504) is slidably disposed on the outer side of the limit guide rod (502). The end of the adjustment slider (504) near the splicing shaft (604) is elastically connected to the swing bracket (501) by a strong spring (503), and the strong spring (503) is sleeved on the outer side of the limit guide rod (502).

5. The heat treatment apparatus for metallic materials according to claim 4, characterized in that: A sliding bracket (505) is installed on the outer side of the adjusting slider (504). A torsion spring shaft (509) is provided on the inner side of the swing arm (507) away from the swing bracket (501). Eccentric clamping wheels (500) are fixedly installed at both ends of the torsion spring shaft (509). A limit bracket (508) is welded to the middle of the side of the swing arm (507) close to the sliding bracket (505). A drive plate (506) is rotatably arranged between the limit bracket (508) and the sliding bracket (505).

6. The heat treatment apparatus for metallic materials according to claim 1, characterized in that: The front of the box (100) is provided with a controller (101), a sliding frame (102) is installed on one side of the lower end of the box (100), and two sets of limiting slide bars (103) are installed on the inner side of the sliding frame (102) and the box (100). Two sets of fixing plates (104) are welded and installed on the top of the box (100).

7. The heat treatment apparatus for metallic materials according to claim 6, characterized in that: A dual-axis motor (201) is fixedly installed in the middle of the two sets of fixing plates (104) by bolts. The output end of the dual-axis motor (201) has two sets of drive shafts (202), and the end of the drive shaft (202) is equipped with an active helical gear (203). The bottom of the active helical gear (203) is meshed with a transmission helical gear (204). The bottom of the transmission helical gear (204) is equipped with a transmission shaft (205), and the bottom of the transmission shaft (205) is equipped with an adjusting screw (200).

8. The heat treatment apparatus for metallic materials according to claim 7, characterized in that: A limiting frame (207) is rotatably provided on the outer side of the adjusting screw (200), and the limiting frame (207) is fixedly installed on the inner side of the housing (100). A limiting housing (206) is movably provided on the outer side of the active helical gear (203) and the transmission helical gear (204), and the limiting housing (206) is fixedly installed on the top of the housing (100).

9. The heat treatment apparatus for metallic materials according to claim 8, characterized in that: Welding brackets (302) are installed on both sides of the induction heating ring (300), and a threaded sleeve (301) is installed at the end of the welding bracket (302) away from the induction heating ring (300). The threaded sleeve (301) is slidably disposed on the outside of the adjusting screw (200). A connector (304) is installed on one side of the induction heating ring (300).

10. A method for heat treating metallic materials, applied to a metallic material heat treatment apparatus as described in any one of claims 1-9, characterized in that: S1. Pre-treatment and equipment debugging: Clean the oil and oxide scale on the surface of the workpiece, match the induction coil according to the shape and size of the workpiece, and adjust the core parameters of the equipment frequency and power to ensure uniform heating. S2. Induction heating and constant temperature holding: The workpiece is self-heated by the electromagnetic induction eddy current effect, and after the temperature is raised to the target temperature, it is kept at a constant temperature to promote the full transformation of the internal structure of the workpiece. S3. Controlled-speed cooling and shaping: After the heat preservation is completed, the workpiece is quickly removed, and water cooling or oil cooling is selected according to the material to accurately control the cooling rate and obtain the target performance structure. S4. Post-processing and quality inspection: The workpiece is subjected to low-temperature aging treatment to eliminate internal stress, and then defects are checked by hardness testing and metallographic analysis. The processing is completed after the workpiece passes the test.

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