Ring forging heat treatment device and using method thereof

Abstract

The invention relates to the field of ring forging heat treatment, in particular to a ring forging heat treatment device and a using method thereof. The device comprises a shell, a correction assembly, a first heat treatment assembly and a second heat treatment assembly. The shell is composed of an operation cylinder and a top cover. The number of the correction assemblies is two, one correction assembly is arranged on the top cover, the other correction assembly is arranged on the operation cylinder, and the two correction assemblies conduct positioning and correction of symmetrical force application in turn from the upper portion and the lower portion of the ring forge piece; the first heat treatment assembly is arranged between the upper correcting assembly and the lower correcting assembly and heats the ring forgings from the interior of the ring forgings. The second heat treatment assembly is located on the periphery of the lower correction assembly and heats the ring forge piece from the outside. The upper correction assembly and the lower correction assembly are arranged to alternately correct and position the ring forge piece, the first heat treatment assembly and the second heat treatment assembly heat the inside and the outside of the ring forge piece correspondingly, and efficient, comprehensive and accurate correction is achieved while heat treatment is achieved by evenly and symmetrically applying force to the inner ring, the outer ring, the upper ring opening and the lower ring opening of the ring forge piece.

Description

Technical Field

[0001] This invention relates to the field of heat treatment of ring forgings, and more particularly to a heat treatment apparatus for ring forgings and its method of use. Background Technology

[0002] Heat treatment of ring forgings is a key heat treatment process in ring forging manufacturing. Its core principle is to improve the material's hardness, strength, and wear resistance by first heating and then cooling. Generally, heat treatment and shaping are separate steps. That is, the ring forging heat treatment unit first heats the material, then cools it, and then moves it to another unit for shaping. This leads to low efficiency, and the numerous intermediate steps make it prone to temperature drops or deformation due to handling. Furthermore, traditional ring forging heat treatment equipment often relies on manual inspection and mechanical adjustment, which is inefficient and has limited precision. Especially for large ring forgings, manual operation makes it difficult to ensure symmetrical force application, easily resulting in uneven shaping. Summary of the Invention

[0003] To address the problems existing in the background technology, a heat treatment device for ring forgings and its usage method are proposed. Two sets of correction components, one above the other, are set up to alternately correct and position the ring forgings. At the same time, heat treatment component one and heat treatment component two heat and soften the inner and outer rings of the ring forgings respectively, so as to achieve efficient, comprehensive and precise correction of the inner and outer rings and the upper and lower ring openings of the ring forgings while heat treatment is performed.

[0004] This invention proposes a heat treatment device for ring forgings, comprising a shell, a correction assembly, a first heat treatment assembly, and a second heat treatment assembly. The shell consists of an operating cylinder and a top cover. Two sets of correction assemblies are provided: one set is located on the top cover, and the other set is located on the operating cylinder. The two sets of correction assemblies cooperate with each other to alternately apply symmetrical force to the ring forging from above and below for positioning and correction. The first heat treatment assembly is detachably positioned between the upper and lower sets of correction assemblies and heats the ring forging from within the ring. The second heat treatment assembly is located on the outer periphery of the lower correction assembly and heats the ring forging from outside the ring. Each set of correction assemblies includes a multi-head adjusting component and multiple sets of correction components whose spacing and height are adjusted by the multi-head adjusting component. The multiple sets of correction components of the two sets of correction assemblies are staggered. While the multiple sets of correction components of one set of correction assemblies are applying symmetrical force to position the ring forging, the multiple sets of correction components of the other set of correction assemblies move along an arc trajectory while simultaneously detecting and shaping the ring forging under symmetrical force.

[0005] Preferably, both the top cover and the operating cylinder are equipped with heat-insulating seats positioned opposite each other; the multi-head adjustment component is driven by a rotary drive table and is rotatably set at the center of the heat-insulating seat.

[0006] Preferably, the multi-head adjustment component includes a dual-head horizontal drive structure; the dual-head horizontal drive structure is horizontally placed on the rotary drive platform, with the two drive ends moving horizontally and respectively connected to the lifting and rotating drive structure; the correction component is disposed on the drive end of the lifting and rotating drive structure.

[0007] Preferably, the correction component includes a U-shaped correction frame; the bottom of the U-shaped correction frame is connected to the drive end of the lifting and rotating drive structure, and the inner wall is provided with multiple sets of electrically controlled telescopic platforms that are opposite to the inner and outer rings and the top and bottom walls of the ring forging; each set of electrically controlled telescopic platforms is provided with a correction roller at its end.

[0008] Preferably, mounting boxes are provided on both sides of the U-shaped correction frame; each mounting box is provided with a rotatable mounting rod and an angle sensor that records the rotation angle of the mounting rod, respectively; a detection roller that rotatably fits against the inner and outer ring walls of the ring forging is provided between the upper and lower opposing mounting rods.

[0009] Preferably, the heat treatment component includes a mounting column that is detachably and rotatably connected between the two sets of correction components; a heating coil is provided in the middle of the mounting column, and air outlet sleeves are provided at the upper and lower ends; a fan is provided inside the air outlet sleeve, air inlets with filters are provided at the upper and lower ends, and air outlets are provided on the side walls.

[0010] Preferably, the dual-head horizontal drive structure is provided with a locking rod; the upper and lower ends of the mounting column are provided with rotatable locking shafts; and the locking shafts are provided with locking grooves that match the shape of the locking rods.

[0011] Preferably, multiple sets of heat treatment components are arranged inside the operating cylinder along the outer periphery of the heat insulation base. Each set of heat treatment components includes a heating column. A heating ring is arranged around the heating column, and a support base is provided at both the top and bottom ends.

[0012] Preferably, a sealing gasket is provided around the outer periphery of the heat insulation base on the top cover.

[0013] This invention further proposes a method for using the aforementioned heat treatment apparatus for ring forgings, comprising the following steps: removing the top cover and fixing the ring forging to be treated onto the correction component of the correction assembly inside the operating cylinder; adjusting the correction component of the correction assembly on the top cover to match the size of the ring forging, while simultaneously staggering its position with the correction component below, and then closing the top cover; heat treatment assembly one and heat treatment assembly two heat the operating chamber to soften the ring forging; multiple correction components of one correction assembly position the ring forging, while multiple correction components of another correction assembly move along an arc trajectory while symmetrically applying force to detect and shape the ring forging; positioning and shaping are performed alternately until the detection results meet the standards, completing the correction. The heat-treated ring forging is then air-cooled to room temperature.

[0014] Compared with existing technologies, this invention has the following beneficial technical effects: The heating coil of heat treatment component one heats the outer periphery of the ring forging, while the heating coil of heat treatment component two heats the inner ring of the ring forging, and airflow accelerates air circulation, achieving efficient heating and softening of the ring forging and improving its plasticity. Two sets of correction components are arranged, one above the other, with the correction components of the two sets always staggered in position. When the U-shaped correction frame and correction roller of one set of correction components work together to symmetrically position the ring forging, the U-shaped correction frame and correction roller of the other set of correction components work together to move along the inner and outer rings and the ring opening of the ring forging in an arc-shaped trajectory to detect the softening and deformation of the ring forging. Simultaneously, based on the detection data, the ring forging is simultaneously corrected and smoothed on both sides. Through the repeated alternation of positioning and correction functions of the two sets of correction components, efficient, comprehensive, and precise correction of the inner and outer rings and the ring opening of the ring forging is achieved. After correction, airflow can further accelerate the cooling and solidification of the ring forging. While heat treating the ring forgings, the device performs uniform and symmetrical correction and shaping, resulting in efficient, comprehensive, and precise straightening. The heat treatment operation is simple and convenient. Attached Figure Description

[0015] Figure 1 A schematic diagram of the external appearance of the heat treatment device for ring forgings;

[0016] Figure 2 This is a bottom view of the top cover;

[0017] Figure 3 This is a top view of the operating cylinder;

[0018] Figure 4 This is a schematic diagram of the combination of two sets of correction components and heat treatment component one;

[0019] Figure 5 Top view of the correction part;

[0020] Figure 6 This is a partial sectional view of the modified part;

[0021] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0022] Figure 8 This is a structural diagram of heat treatment component one;

[0023] Figure 9 for Figure 3 Enlarged view at point B in the middle;

[0024] Figure 10 This is a structural diagram of heat treatment component two.

[0025] Reference numerals: 1. Operating cylinder; 2. Top cover; 201. Sealing gasket; 3. Correction assembly; 301. Multi-head adjustment component; 30101. Double-head horizontal drive structure; 30102. Lifting and rotating drive structure; 30103. Rotary drive table; 30104. Clamping rod; 302. Correction component; 30201. U-shaped correction frame; 30202. Electrically controlled telescopic table; 30203. Correction roller; 30204. Mounting box; 3020 5. Installation bending rod; 30206. Detection roller; 30207. Connecting shaft; 30208. Return torsion spring; 30209. Angle sensor; 4. Heat treatment component one; 401. Mounting column; 402. Heating coil one; 403. Slot; 404. Air outlet sleeve; 405. Air inlet; 406. Air outlet; 5. Heat treatment component two; 501. Heating column; 502. Heating coil two; 503. Support base; 6. Heat insulation base. Detailed Implementation

[0026] Example 1, as Figures 1-4 As shown, this invention proposes a heat treatment device for ring forgings, including a shell, a correction component 3, a first heat treatment component 4, and a second heat treatment component 5. The shell consists of an operating cylinder 1 and a top cover 2; two sets of correction components 3 are provided, one set of correction components 3 is located on the top cover 2, and the other set of correction components 3 is located on the operating cylinder 1. The two sets of correction components 3 cooperate with each other to alternately apply symmetrical force to position and correct the ring forging from above and below; the first heat treatment component 4 is detachably arranged between the upper and lower sets of correction components 3, and heats the ring forging from inside the ring; the second heat treatment component 5 is located on the outer periphery of the lower correction component 3, and heats the ring forging from outside the ring.

[0027] Each set of correction components 3 includes a multi-head adjustment component 301 and multiple sets of correction components 302 whose spacing and height are adjusted by the multi-head adjustment component 301; the multiple sets of correction components 302 of the two sets of correction components 3 are staggered. When the multiple sets of correction components 302 of one set of correction components 3 apply symmetrical force to the ring forging for positioning, the multiple sets of correction components 302 of the other set of correction components 3 move in an arc trajectory while performing symmetrical force application detection and shaping on the ring forging.

[0028] like Figures 2-3 As shown, both the top cover 2 and the operating cylinder 1 are equipped with heat insulation seats 6 in opposite positions; the multi-head adjustment component 301 is driven by the rotary drive table 30103 and is rotatably set at the center of the heat insulation seat 6.

[0029] It should be further explained that the heat insulation seat 6 is equipped with a ceramic-metal composite coating, which can reduce the absorption of heat in the operating cavity to ensure the softening effect on the ring forging.

[0030] It should be further explained that the rotary drive table 30103 is driven to rotate by a motor, which in turn drives the multi-head adjustment component 301 to rotate at the center of the heat insulation seat 6.

[0031] like Figure 4 As shown, the multi-head adjustment component 301 includes a double-head horizontal drive structure 30101; the double-head horizontal drive structure 30101 is horizontally placed on the rotary drive table 30103, and the two drive ends move horizontally and are respectively connected to the lifting rotary drive structure 30102; the correction component 302 is disposed on the drive end of the lifting rotary drive structure 30102.

[0032] It should be further explained that the dual-head horizontal drive structure 30101 is configured as a dual-head bidirectional cylinder; the lifting and rotating drive structure 30102 is configured as a combination of a lifting cylinder and a rotary motor. Through the cooperation of the dual-head horizontal drive structure 30101 and the lifting and rotating drive structure 30102, the corrector 302 can move in both the horizontal and vertical directions, thus accommodating ring forgings of different sizes. Furthermore, by further rotation, the correction angle can be adjusted to meet shaping requirements.

[0033] like Figures 5-6 As shown, the correction component 302 includes a U-shaped correction frame 30201; the bottom of the U-shaped correction frame 30201 is connected to the drive end of the lifting and rotating drive structure 30102, and the inner wall is provided with multiple sets of electrically controlled telescopic platforms 30202 that are opposite to the inner and outer rings and the top and bottom walls of the ring forging; each set of electrically controlled telescopic platforms 30202 is provided with a correction roller 30203 at its end.

[0034] It should be further noted that the correction roller 30203 is rotatable, and the rotation direction is the same as that of the ring forging.

[0035] During the correction operation, both ends of the ring forging are limited by two sets of U-shaped correction frames 30201. The electrically controlled telescopic table 30202 approaches the ring forging until the correction roller 30203 is firmly attached to the ring forging, thus positioning the ring forging at two points. The other two sets of electrically controlled telescopic tables 30202 rotate with the rotary drive table 30103, and the correction roller 30203 corrects and shapes the inside and outside of the ring forging, and flattens the upper and lower ends. During the shaping process, the rotation of the U-shaped correction frame 30201 causes the correction roller 30203 to change the angle of force application, thereby changing the correction effect.

[0036] It should be further explained that the correction roller 30203 at the bottom of the U-shaped correction frame 30201 can extend and retract, which can flatten and shape the ring opening of the ring forging, and can also move up and down with the U-shaped correction frame 30201, always providing support for the U-shaped correction frame 30201.

[0037] It should be further explained that the two sets of U-shaped correction frames 30201 apply force to the ring forging symmetrically to correct the deformation of the ring forging due to uneven force.

[0038] like Figures 6-7 As shown, mounting boxes 30204 are provided on both sides of the U-shaped correction frame 30201; the mounting boxes 30204 are respectively provided with rotatable mounting rods 30205 and angle sensors 30209 for recording the rotation angle of the mounting rods 30205; between the upper and lower opposite mounting rods 30205, a detection roller 30206 is rotatably arranged to fit against the inner and outer ring walls of the ring forging.

[0039] It should be further explained that the detection roller 30206 is set with four sets, two sets are attached to the inner ring wall of the ring forging, and the other two sets are attached to the outer ring wall of the ring forging.

[0040] It should be further explained that the mounting box 30204 is provided with a connecting shaft 30207 that connects the upper and lower mounting bends 30205 and a reset torsion spring 30208 that is sleeved on the outside of the connecting shaft 30207; the outer end of the reset torsion spring 30208 is fixed and the inner end is connected to the connecting shaft 30207, so that the detection roller 30206 fits tightly with the ring wall of the ring forging.

[0041] When the ring forging is fixed by two sets of U-shaped correction frames 30201, two other sets of U-shaped correction frames 30201 move with the inner and outer ring walls of the ring forging. During the movement, the detection rollers 30206, one in front and one behind, one on the left and one on the right, are attached to the ring wall of the ring forging, and the deformation of the ring wall is detected according to the rotation angle data of the mounting bend 30205. Based on the above data, the correction rollers 30203 correct and shape the inner and outer rings of the ring forging, and flatten the upper and lower ends. Since the two sets of correction components 3 are staggered, one above and one below, the ring forging can be fully shaped.

[0042] like Figure 8 As shown, the heat treatment component 4 includes a mounting column 401 that is detachably and rotatably connected between two sets of correction components 3; a heating coil 402 is provided in the middle of the mounting column 401, and an air outlet sleeve 404 is provided at the upper and lower ends; a fan is provided inside the air outlet sleeve 404, an air inlet 405 with a filter screen is provided at the upper and lower ends, and an air outlet 406 is provided on the side wall.

[0043] Heating coil 402 heats the inner ring of the ring forging, softening it. Simultaneously, air outlet sleeve 404 gathers and disperses the air around heating coil 402, accelerating the flow of heat around the ring forging and resulting in more uniform and efficient heating. After correction, a fan can be used to cool and solidify the ring forging.

[0044] like Figure 9As shown, a locking rod 30104 is provided on the dual-head horizontal drive structure 30101; a rotatable locking shaft is provided at both the upper and lower ends of the mounting column 401; and a locking groove 403 matching the shape of the locking rod 30104 is provided on the locking shaft.

[0045] It should be further noted that the card slot 403 is cross-shaped.

[0046] The cooperation between the clamping rod 30104 and the clamping slot 403 enables the two sets of correction components 3 to be installed and disassembled through the heat treatment component 4, which facilitates the loading and unloading of ring forgings and the maintenance of the device.

[0047] like Figure 10 As shown, multiple sets of heat treatment components 2 5 are arranged inside the operating cylinder 1 along the outer periphery of the heat insulation base 6. Each set of heat treatment components 2 5 includes a heating column 501; a heating ring 2 502 is arranged around the heating column 501, and a support base 503 is arranged at the top and bottom.

[0048] During the correction process, the heating column 501 generates heat from the outer periphery of the ring forging, which, together with the heating coil 402 heating the inner ring of the ring forging and air circulation, heats and softens the ring forging. The upper and lower support seats 503 are used to separate the heating column 501 to reduce heat conduction.

[0049] like Figure 2 As shown, a sealing gasket 201 is provided around the outer periphery of the heat insulation base 6 along the top cover 2; the sealing gasket 201 ensures the temperature of the operating chamber and reduces heat loss. After the correction is completed, the top cover 2 can be opened and the fan can be started to accelerate cooling and shaping.

[0050] Example 2: This example describes the method of using the heat treatment device for ring forgings from Example 1. The steps are as follows:

[0051] S1. Remove the top cover 2, adjust the spacing between the two sets of U-shaped correction frames 30201 inside the operating cylinder 1, and place the ring forging to be processed on the two sets of U-shaped correction frames 30201 inside the operating cylinder 1; set the electrically controlled telescopic table 30202 close to the ring forging until the correction roller 30203 is firmly attached to both ends of the ring forging, so that the ring forging can be positioned at two points.

[0052] S2. According to the size of the ring forging, adjust the spacing of the two sets of U-shaped correction brackets 30201 on the top cover 2 to match the size of the ring forging, and at the same time, the positions of the two sets of U-shaped correction brackets 30201 below are staggered. Cover the top cover 2, and the cooperation of the clamping rod 30104 and the clamping groove 403 will make the two sets of correction components 3 and the heat treatment component 4 complete the docking. At this time, the ring forging is located between the upper and lower U-shaped correction brackets 30201.

[0053] S3. Heating coil 2 502 heats the outer periphery of the ring forging, and together with heating coil 1 402 heating the inner ring of the ring forging and air circulation, the ring forging is heated and softened.

[0054] S4. The ring forging is fixed by two sets of U-shaped correction frames 30201. The other two sets of U-shaped correction frames 30201, in conjunction with the rotary drive table 30103, rotate and move along the inner and outer ring walls of the ring forging. During the movement, the detection rollers 30206, one in front and one behind, one on the left and one on the right, are attached to the ring wall of the ring forging. The deformation of the ring wall is detected according to the rotation angle data of the installed bending rod 30205. Based on the above data, the correction rollers 30203, through further position and angle adjustment, move along the ring forging while correcting and shaping the inner and outer rings of the ring forging, and simultaneously flattening the upper and lower ends.

[0055] S4. Switch the functions of the positioning and correction U-shaped correction frame 30201 respectively, and repeatedly alternate correction and shaping until the deformation detection result meets the standard.

[0056] S5. Remove the top cover 2 and supply air to accelerate the air cooling of the heat-treated ring forging to room temperature.

[0057] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A heat treatment apparatus for ring forgings, characterized in that, include: The outer casing consists of an operating cylinder (1) and a top cover (2); Correction component (3), two sets of correction component (3) are set, one set of correction component (3) is set on top cover (2), and the other set of correction component (3) is set on operating cylinder (1). The two sets of correction components (3) cooperate with each other to apply symmetrical force to the ring forging from the top and bottom of the ring forging in turn for positioning and correction. Heat treatment assembly 1 (4) is detachably disposed between the upper and lower sets of correction assemblies (3) and heats the ring forging from inside the ring. And heat treatment component two (5), which is located on the outer periphery of the lower correction component (3) and heats it from the outside of the ring forging; Each set of correction components (3) includes a multi-head adjustment component (301) and multiple sets of correction components (302) that adjust the spacing and height through the multi-head adjustment component (301); the multiple sets of correction components (302) of the two sets of correction components (3) are staggered. When the multiple sets of correction components (302) of one set of correction components (3) applies symmetrical force to the ring forging, the multiple sets of correction components (302) of the other set of correction components (3) moves in an arc trajectory while performing symmetrical force application detection and shaping on the ring forging.

2. The heat treatment apparatus for ring forgings according to claim 1, characterized in that, Both the top cover (2) and the operating cylinder (1) are equipped with heat insulation seats (6) in opposite positions; the multi-head adjustment component (301) is driven by the rotary drive table (30103) and is rotatably set at the center of the heat insulation seat (6).

3. The heat treatment apparatus for ring forgings according to claim 2, characterized in that, The multi-head adjustment component (301) includes a double-head horizontal drive structure (30101); the double-head horizontal drive structure (30101) is horizontally placed on the rotary drive table (30103), the two drive ends move horizontally and are respectively connected to the lifting rotary drive structure (30102); the correction component (302) is set on the drive end of the lifting rotary drive structure (30102).

4. The heat treatment apparatus for ring forgings according to claim 3, characterized in that, The corrector (302) includes a U-shaped corrector frame (30201); the bottom of the U-shaped corrector frame (30201) is connected to the drive end of the lifting and rotating drive structure (30102), and the inner wall is provided with multiple sets of electrically controlled telescopic platforms (30202) that are opposite to the inner and outer rings and the top and bottom walls of the ring forging; each set of electrically controlled telescopic platforms (30202) is provided with a corrector roller (30203) at its end.

5. The heat treatment apparatus for ring forgings according to claim 4, characterized in that, The U-shaped correction frame (30201) is provided with mounting boxes (30204) on both sides; the mounting boxes (30204) are respectively provided with rotatable mounting rods (30205) on the top and bottom and angle sensors (30209) for recording the rotation angle of the mounting rods (30205); between the upper and lower opposite mounting rods (30205), a detection roller (30206) is rotatably provided to fit against the inner and outer ring walls of the ring forging.

6. The heat treatment apparatus for ring forgings according to claim 3, characterized in that, The heat treatment component 1 (4) includes a mounting column (401) that is detachably and rotatably connected between the two sets of correction components (3); a heating coil 1 (402) is provided in the middle of the mounting column (401), and an air outlet sleeve (404) is provided at the upper and lower ends; a fan is provided inside the air outlet sleeve (404), an air inlet (405) with a filter screen is provided at the upper and lower ends, and an air outlet (406) is provided on the side wall.

7. The heat treatment apparatus for ring forgings according to claim 6, characterized in that, The dual-head horizontal drive structure (30101) is provided with a locking rod (30104); the upper and lower ends of the mounting column (401) are provided with rotatable locking shafts; the locking shafts are provided with locking grooves (403) that match the shape of the locking rod (30104).

8. The heat treatment apparatus for ring forgings according to claim 2, characterized in that, Multiple sets of heat treatment components (5) are arranged in the operating cylinder (1) along the outer periphery of the heat insulation seat (6). Each set of heat treatment components (5) includes a heating column (501); a heating ring (502) is arranged around the heating column (501), and a support seat (503) is arranged at the top and bottom.

9. The heat treatment apparatus for ring forgings according to claim 2, characterized in that, A sealing gasket (201) is provided around the outer periphery of the heat insulation seat (6) along the top cover (2).

10. The method of using a heat treatment apparatus for ring forgings, characterized in that, The steps are as follows: Remove the top cover (2) and fix the ring forging to be processed on the correction component (302) of the correction component (3) inside the operating cylinder (1); adjust the correction component (302) of the correction component (3) on the top cover (2) to match the size of the ring forging, and at the same time, stagger the position with the correction component (302) below, and cover the top cover (2); heat treatment component one (4) and heat treatment component two (5) heat the operating cavity to soften the ring forging; multiple correction components (302) of one correction component (3) position the ring forging, and multiple correction components (302) of another correction component (3) move in an arc trajectory while symmetrically applying force to detect and shape the ring forging; positioning and shaping are carried out alternately until the detection result meets the standard, and the correction is completed; air cool the heat-treated ring forging to room temperature.

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