A forging heat treatment equipment and heat treatment process thereof

Abstract

The present invention discloses a forging heat treatment equipment and a heat treatment process thereof, belonging to the technical field of forging processing. A forging heat treatment equipment includes a workbench, and also includes: a material box, which is fixed on the workbench and used to place short bars, and a discharge port is opened at the bottom of the material box; a pushing component, which is arranged on the workbench and used to push the short bars falling in the material box; a heat treatment piece, which is electrically connected to a heating coil for heating the short bars; the present invention arranges a self-coaxial component so that the short bars and the heating coil are coaxially arranged during heat treatment, and then the positions of the side curved surfaces of the short bars are equal to the positions between the heating coils, so as to ensure the uniformity of heating of the short bars, and the short bars are rotated during heating, so that the side curved surfaces of the short bars will not always abut against the support position, further ensuring the uniformity of heating of the forgings, saving heating energy consumption, and improving the efficiency of heat treatment of forgings.

Description

Technical Field

[0001] The invention relates to the technical field of forging processing, and in particular to a forging heat treatment device and a heat treatment process thereof. Background Art

[0002] The heat treatment technologies for forgings mainly include annealing, normalizing, quenching, tempering, quenching and tempering, solution treatment and aging treatment, among which annealing also includes incomplete annealing, complete annealing, isothermal annealing, general spheroidizing annealing, isothermal spheroidizing annealing, and rapid spheroidizing annealing. Forging heat treatment equipment is used to heat treat workpieces. The medium frequency heating furnace is a power supply heat treatment equipment that converts industrial frequency 50HZ AC into medium frequency (300HZ to 1000HZ). It converts three-phase industrial frequency AC into DC after rectification, and then converts DC into adjustable medium frequency current to supply medium frequency alternating current flowing through capacitors and induction coils, generating high-density magnetic lines in the induction coil, and cutting the metal materials contained in the induction coil, generating large eddy currents in the metal materials.

[0003] When the existing small medium frequency heating forging equipment heats short bars, multiple short bars are pushed into the heating coil of the forging equipment in sequence for heating. However, since the short bars are pushed directly into the heating coil, they will fall under the factor of gravity and contact the bottom side of the heating coil, but they are too far away from the top side of the heating coil, resulting in uneven heating of the short bars as a whole; even if a support is added to the heating coil to support the short bars, when processing short bars of different diameters, the staff still needs to manually adjust the height of the support so that the short bars are coaxially arranged with the heating coil to ensure uniform heating. The temperature of the part where the support contacts the short bars will be lower than other parts, so that it takes a long time for the forging temperature to reach uniformity, affecting the forging efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a forging heat treatment equipment and a heat treatment process thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A forging heat treatment device, comprising a workbench, and further comprising:

[0007] A material box, which is fixed on the workbench and is used to place short bars, and a discharge port is provided at the bottom of the material box;

[0008] A pushing component, which is arranged on a workbench and is used to push the short bars falling from the material box;

[0009] A heat treatment part, wherein the heat treatment part is electrically connected to a heating coil for heating the short bar stock;

[0010] A coaxial seat, wherein the coaxial seat is provided with two groups connected to the workbench and respectively placed at the two ends of the heating coil, and the coaxial seat is coaxially arranged with the heating coil;

[0011] Wherein, a self-coaxial component is arranged on the coaxial seat, and a supporting part for supporting short rods is arranged on the self-coaxial component.

[0012] Preferably, the self-coaxial assembly includes four elastic telescopic rods evenly arranged in a circle on a coaxial seat, the left and right elastic telescopic rods are connected to a main movable plate, and the upper and lower elastic telescopic rods are connected to an auxiliary movable plate, and the main movable plate and the auxiliary movable plate together form a accommodating area for accommodating short rods.

[0013] Preferably, the main movable plate and the auxiliary movable plate have the same structure, both comprising an arc-shaped plate fixedly connected to the elastic telescopic rod and a guide plate obliquely arranged with respect to the arc-shaped plate, and an obtuse angle area is formed between the arc-shaped plate and the guide plate.

[0014] Preferably, the pushing assembly is placed in the middle of the coaxial seat, and the obtuse angle of the obtuse angle area of ​​the main movable plate is greater than the obtuse angle of the obtuse angle area of ​​the auxiliary movable plate.

[0015] Preferably, the elastic telescopic rod includes a sleeve fixedly connected to the coaxial seat, a movable rod slidably connected in the sleeve, and an elastic element arranged between the sleeve and the movable rod. The movable rods of the four elastic telescopic rods on the coaxial seat are all fixed with positioning rods. A rotating plate is rotatably connected in the coaxial seat, and a track groove matching the positioning rod is opened on the rotating plate.

[0016] Preferably, the support portion comprises a support rod respectively connected to the main movable plates on the left and right sides of the coaxial seat and a plurality of support rollers arranged on the support rod, and the plurality of support rollers are equidistantly arranged on the support rod.

[0017] Preferably, a driving motor is fixedly arranged in the main movable plate, the output shaft of the driving motor is connected to the support rod, and a plurality of anti-skid spiral conveying strips are fixedly arranged on the support roller, and the anti-skid spiral conveying strips are movably opposed to the short bar material.

[0018] Preferably, the pitch of the anti-skid spiral conveying strips on the plurality of support rollers gradually increases from one end of the support rod to the other end.

[0019] Preferably, the pushing assembly includes a conveying seat and a pushing cylinder fixed on the workbench, the piston rod of the pushing cylinder is connected to a pushing seat sliding on the conveying seat, and the conveying seat is provided with a conveying groove for sliding of short bars.

[0020] The present invention also discloses a forging heat treatment process, which uses a forging heat treatment device for processing, and includes the following steps:

[0021] S1: First, put some short bars to be processed into the material box. The short bars at the bottom of the material box enter the conveying trough from the discharge port along the inclined surface of the bottom of the material box. Control the operation of the push cylinder. The piston rod of the push cylinder pushes the short bars in the conveying trough to move toward the heating coil through the push seat.

[0022] S2: The short bar being pushed moves horizontally. Before entering the heating coil, it will first abut against the guide plates on the left and right main movable plates of the right coaxial seat. The guide plates on the left and right sides of the coaxial seat are subjected to force at the same time, and the guide plates transmit the force to the arc plate. The arc plate squeezes the elastic telescopic rod. When the movable rod of the elastic telescopic rod contracts, it drives the positioning rod to move. The positioning rod cooperates with the track groove of the rotating plate to make the rotating plate rotate relative to the coaxial seat. The track groove on the rotating plate applies force to the movable rods of the upper and lower elastic telescopic rods of the coaxial seat, thereby making the upper and lower auxiliary movable plates on the coaxial seat move up and down respectively, and the distance of the two auxiliary movable plates moving up or down is equal to the distance of the movement of the left and right main movable plates. The area enclosed by the two main movable plates and the two auxiliary movable plates after moving automatically adapts to the size of the short bar, so that the short bar is in the same straight line with the central axis of the coaxial seat and the heating coil at this time;

[0023] S3: Then the push cylinder drives the push seat to move back through the piston rod, and the push seat no longer limits the short bar material at the discharge port. The short bar material at the discharge port automatically falls into the conveying trough, and the push cylinder is controlled to continue working, so that the push seat moves the short bar material in the conveying trough to the coaxial seat. At this time, the pushed short bar material will push out the short bar material placed in the coaxial seat. The short bar material pushed out from the coaxial seat slides along the support rollers on the support rods connected to the main movable plates on the left and right sides, so that the short bar material enters the heating coil and remains coaxial with the heating coil;

[0024] S4: Control the operation of the driving motor. The output shaft of the driving motor drives the support rod to rotate. When the support rod rotates, the support roller is driven to rotate. When the anti-slip spiral conveyor strip on the support roller rotates, friction is generated between the short bar material and the short bar material to push the short bar material forward during rotation, so that the heating coil evenly heats each position of the curved surface of the short bar material.

[0025] S5: The pitch of the anti-slip spiral conveying strips on the several support rollers distributed along the support rod gradually changes, so that the multiple short bars moving forward while rotating in the heating coil are gradually separated one by one, and the end faces of the short bars are exposed, so that the heating coil can quickly heat the end faces of the short bars, and the short bars that have been heated are moved out from the coaxial seat on the left side of the heating coil;

[0026] S6: Repeat S3-S5 to achieve quick and uniform heating of the remaining short bars in the material box.

[0027] Compared with the prior art, the present invention provides a forging heat treatment equipment and a heat treatment process thereof, which have the following beneficial effects:

[0028] 1. The forging heat treatment equipment and the heat treatment process thereof are provided with a self-coaxial component, so that the short bar material during heat treatment is automatically adjusted to a coaxial state with the heating coil, thereby making each position of the side curved surface of the short bar material equal to the position between the heating coils, thereby ensuring the heating uniformity of the short bar material, saving heating energy consumption, and improving the heat treatment efficiency of forgings.

[0029] 2. The forging heat treatment equipment and the heat treatment process thereof are characterized by arranging an anti-skid spiral conveyor bar on the support roller. When the anti-skid spiral conveyor bar on the support roller rotates, friction is generated between the anti-skid spiral conveyor bar and the short bar stock and pushes the short bar stock to move forward during rotation. The side curved surface of the short bar stock will not always be in contact with the support portion, so that the heating coil can evenly heat various positions of the curved surface of the short bar stock, further ensuring the heating uniformity of the forging, saving heating energy consumption, and improving the heat treatment efficiency of the forging stock.

[0030] 3. The forging heat treatment equipment and the heat treatment process thereof gradually change the pitch of the anti-slip spiral conveying strips on several support rollers distributed along the support rod, so that multiple short bars moving forward while rotating in the heating coil are gradually separated one by one, and the end faces of the short bars are exposed, so that the heating coil can quickly heat the end faces of the short bars, further ensuring the heating uniformity of the forgings, saving heating energy consumption, and improving the heat treatment efficiency of the forgings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0032] Figure 2 For the present invention Figure 1 The main view of

[0033] Figure 3 For the present invention Figure 1 Right view of;

[0034] Figure 4 It is a schematic structural diagram of the short bar material of the present invention when it is placed on the support part;

[0035] Figure 5 It is a structural schematic diagram of the coaxial seat and the support part of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the short bar material of the present invention being placed in the coaxial seat;

[0037] Figure 7 The structure of the coaxial seat of the present invention is shown in FIG. Figure 1 ;

[0038] Figure 8 The structure of the coaxial seat of the present invention is shown in FIG. Figure 2 ;

[0039] Fig. 9 The structure of the coaxial seat of the present invention is shown in FIG. Figure 3 ;

[0040] Fig.10 It is a schematic cross-sectional structure diagram of the coaxial seat of the present invention;

[0041] Fig.11 It is a schematic structural diagram of the support portion of the present invention.

[0042] In the figure: 1. workbench; 2. material box; 201. short bar material; 202. discharge port; 3. heat-treated part; 301. heating coil; 4. coaxial seat; 5. elastic telescopic rod; 501. sleeve; 502. movable rod; 5021. positioning rod; 503. elastic element; 6. main movable plate; 601. arc plate; 602. guide plate; 603. accommodating area; 604. obtuse angle area; 7. support rod; 701. support roller; 702. anti-slip spiral conveyor strip; 8. driving motor; 9. auxiliary movable plate; 10. rotating plate; 1001. track groove; 11. conveying seat; 111. conveying groove; 12. pushing cylinder; 121. pushing seat. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] Example 1: Reference Figure 1-8 , a forging heat treatment equipment, comprising a workbench 1, and also comprising:

[0046] A material box 2 is fixed on the workbench 1 and is used to place short bar materials 201. A discharge port 202 is provided at the bottom of the material box 2;

[0047] A pushing component, which is arranged on the workbench 1 and is used to push the short bar material 201 falling from the material box 2;

[0048] A heat treatment piece 3, the heat treatment piece 3 is electrically connected to a heating coil 301 for heating the short bar material 201;

[0049] The coaxial seat 4 is provided with two groups connected to the workbench 1 and respectively placed at the two ends of the heating coil 301. The coaxial seat 4 is coaxially arranged with the heating coil 301;

[0050] The coaxial seat 4 is provided with a self-coaxial component, and the self-coaxial component is provided with a supporting portion for supporting the short bar material 201 .

[0051] Furthermore, the pushing assembly includes a conveying seat 11 and a pushing cylinder 12 fixed on the workbench 1. The piston rod of the pushing cylinder 12 is connected to a pushing seat 121 sliding on the conveying seat 11. The conveying seat 11 is provided with a conveying groove 111 for the short bar 201 to slide.

[0052] Specifically, firstly, some short bars 201 to be processed are placed in the material box 2, and the short bars 201 at the bottom side of the material box 2 enter the conveying trough 111 from the discharge port 202 along the inclined surface of the bottom of the material box 2, and the pushing cylinder 12 is controlled to operate. The piston rod of the pushing cylinder 12 pushes the short bars 201 in the conveying trough 111 to move toward the heating coil 301 through the pushing seat 121. The short bars 201 being pushed move horizontally and will first enter the right coaxial seat 4 before entering the heating coil 301. The self-coaxial component in the coaxial seat 4 automatically adjusts the short bars 201 being conveyed to a coaxial state with the heating coil 301. There is no need for manual adjustment by the staff, which reduces the workload of the staff. When the short bars 201 subsequently enter the heating coil 301, the positions of the side curved surfaces of the short bars 201 are equal to the positions between the heating coils 301, thereby ensuring the uniformity of heating of the short bars 201, saving heating energy consumption, and improving the heat treatment efficiency of forgings.

[0053] Example 2: Reference Figure 1-10 , a forging heat treatment equipment, based on Example 1, further, the coaxial component includes four elastic telescopic rods 5 evenly arranged on the coaxial seat 4 in a circle, the left and right elastic telescopic rods 5 are connected to the main movable plate 6, the upper and lower elastic telescopic rods 5 are connected to the auxiliary movable plate 9, the main movable plate 6 and the auxiliary movable plate 9 are surrounded to form a accommodating area 603 for accommodating short bar material 201.

[0054] Furthermore, the main movable plate 6 and the auxiliary movable plate 9 have the same structure, both comprising an arc plate 601 fixedly connected to the elastic telescopic rod 5 and a guide plate 602 inclined to the arc plate 601 , and an obtuse angle area 604 is formed between the arc plate 601 and the guide plate 602 .

[0055] Furthermore, the pushing assembly is placed in the middle of the coaxial seat 4 , and the obtuse angle of the obtuse angle area 604 of the main movable plate 6 is greater than the obtuse angle of the obtuse angle area 604 of the auxiliary movable plate 9 .

[0056] Furthermore, the elastic telescopic rod 5 includes a sleeve 501 fixedly connected to the coaxial seat 4, a movable rod 502 slidably connected in the sleeve 501, and an elastic element 503 arranged between the sleeve 501 and the movable rod 502. The movable rods 502 of the four elastic telescopic rods 5 on the coaxial seat 4 are all fixed with a positioning rod 5021. A rotating plate 10 is rotatably connected in the coaxial seat 4, and a track groove 1001 matching the positioning rod 5021 is opened on the rotating plate 10.

[0057] Specifically, the short bar material 201 being pushed moves horizontally. Because the inclination angle of the guide plate 602 on the main movable plate 6 is smaller than that of the guide plate 602 on the auxiliary movable plate 9, the short bar material 201 will first abut against the guide plates 602 on the left and right sides of the main movable plates 6 on the right coaxial seat 4 before entering the heating coil 301. The guide plates 602 on the left and right sides of the coaxial seat 4 are subjected to force at the same time, and the guide plates 602 transmit the force to the arc plate 601. The arc plate 601 squeezes the elastic telescopic rod 5. When the movable rod 502 of the elastic telescopic rod 5 contracts, it drives the positioning rod 5021 to move. The positioning rod 5021 cooperates with the track groove 1001 of the rotating plate 10 to make the rotating plate 10 rotate relative to the coaxial seat 4. The track groove 1001 on the rotating plate 10 exerts force on the movable rods 502 of the upper and lower elastic telescopic rods 5 of the coaxial seat 4. Apply force, so that the upper and lower auxiliary movable plates 9 on the coaxial seat 4 move up and down respectively, and the distance that the two auxiliary movable plates 9 move up or down is equal to the distance that the two left and right main movable plates 6 move. The area enclosed by the two main movable plates 6 and the two auxiliary movable plates 9 move automatically adapts to the size of the short bar 201, so that the short bar 201 is in the same straight line with the central axis of the coaxial seat 4 and the heating coil 301 at this time, and no manual adjustment is required; it should be noted that when the pushing component pushes the first short bar 201 to the right coaxial seat 4, the staff can first insert a short bar 201 to be processed into the left coaxial seat 4 of the heating coil 301, so that the self-coaxial components in the coaxial seats 4 on both sides of the heating coil 301 work at the same time, thereby ensuring the support stability of both ends of the support part.

[0058] Example 3: Reference Figure 1-11 , a forging heat treatment equipment, based on Example 2, the support part includes a support rod 7 connected to the main movable plates 6 on the left and right sides of the coaxial seat 4 respectively, and a plurality of support rollers 701 arranged on the support rod 7, and the plurality of support rollers 701 are equidistantly arranged on the support rod 7.

[0059] Furthermore, a driving motor 8 is fixedly installed in the main movable plate 6, and the output shaft of the driving motor 8 is connected to the support rod 7. A plurality of anti-skid spiral conveying strips 702 are fixedly installed on the support roller 701, and the anti-skid spiral conveying strips 702 and the short bar material 201 are movably opposed to each other.

[0060] Specifically, after the short bar 201 exists in the coaxial seat 4 on the right side of the heating coil 301, the pushing cylinder 12 then drives the pushing seat 121 to move back through the piston rod, and the pushing seat 121 no longer limits the short bar 201 at the discharge port 202, and the short bar 201 at the discharge port 202 automatically falls into the conveying trough 111, and the pushing cylinder 12 is controlled to continue working so that the pushing seat 121 moves the short bar 201 in the conveying trough 111 toward the coaxial seat 4. At this time, the pushed short bar 201 will push out the short bar 201 placed in the coaxial seat 4, and the short bar 201 pushed out by the coaxial seat 4 will follow the support rollers 7 on the support rods 7 connected to the main movable plates 6 on the left and right sides. 01 slides, so that the short bar 201 enters the heating coil 301 and maintains a coaxial state with the heating coil 301, and then controls the drive motor 8 to run, and the output shaft of the drive motor 8 drives the support rod 7 to rotate, and the support rod 7 drives the support roller 701 to rotate when it rotates. When the anti-slip spiral conveying strip 702 on the support roller 701 rotates, friction is generated between it and the short bar 201 and pushes the short bar 201 to move forward during rotation. The side curved surface of the short bar 201 will not always contact the support part, so that the heating coil 301 evenly heats each position of the curved surface of the short bar 201, further ensuring the uniformity of heating of the forging, saving heating energy consumption, and improving the heat treatment efficiency of the forging.

[0061] Example 4: Reference Figure 4 , Figure 5 and Fig.11 , a forging heat treatment equipment, based on Example 3, the pitch of the anti-slip spiral conveying strips 702 on the plurality of support rollers 701 gradually increases from one end of the support rod 7 to the other end.

[0062] Specifically, the pitch of the anti-slip spiral conveying strips 702 on the several support rollers 701 distributed along the support rod 7 gradually changes, so that the multiple short bars 201 moving forward while rotating in the heating coil 301 are gradually separated one by one, and the end faces of the short bars 201 are exposed, so that the heating coil 301 can quickly heat the end faces of the short bars 201, further ensuring the uniformity of heating of the forgings, saving heating energy consumption, and improving the heat treatment efficiency of the forgings.

[0063] The present invention also discloses a forging heat treatment process, which uses a forging heat treatment device for processing, and includes the following steps:

[0064] S1: First, a portion of the short bar material 201 to be processed is placed in the material box 2, and the short bar material 201 at the bottom of the material box 2 enters the conveying trough 111 from the discharge port 202 along the inclined surface at the bottom of the material box 2, and the push cylinder 12 is controlled to operate, and the piston rod of the push cylinder 12 pushes the short bar material 201 in the conveying trough 111 to move toward the heating coil 301 through the push seat 121;

[0065] S2: The short bar material 201 being pushed moves horizontally. Before entering the heating coil 301, it will first abut against the guide plates 602 on the left and right main movable plates 6 of the right coaxial seat 4. The guide plates 602 on the left and right sides of the coaxial seat 4 are subjected to force at the same time. The guide plates 602 transmit the force to the arc plate 601. The arc plate 601 squeezes the elastic telescopic rod 5. When the movable rod 502 of the elastic telescopic rod 5 contracts, it drives the positioning rod 5021 to move. The positioning rod 5021 cooperates with the track groove 1001 of the rotating plate 10 to make the rotating plate 10 rotate relative to the coaxial seat 4. The track groove 1001 on the rotating plate 10 applies a force to the movable rod 502 of the upper and lower elastic telescopic rods 5 of the coaxial seat 4, thereby making the upper and lower auxiliary movable plates 9 on the coaxial seat 4 move up and down respectively, and the distance of the two auxiliary movable plates 9 moving up or down is equal to the distance of the movement of the left and right main movable plates 6. The area enclosed by the two main movable plates 6 and the two auxiliary movable plates 9 after moving automatically adapts to the size of the short bar 201, so that the short bar 201 is in the same straight line with the central axis of the coaxial seat 4 and the heating coil 301 at this time;

[0066] S3: Then the push cylinder 12 drives the push seat 121 to move back through the piston rod, and the push seat 121 no longer limits the short bar material 201 at the discharge port 202, and the short bar material 201 at the discharge port 202 automatically falls into the conveying trough 111, and the push cylinder 12 is controlled to continue to work, so that the push seat 121 moves the short bar material 201 in the conveying trough 111 to the coaxial seat 4. At this time, the pushed short bar material 201 will push out the short bar material 201 placed in the coaxial seat 4, and the short bar material 201 pushed out by the coaxial seat 4 slides along the support rollers 701 on the support rods 7 connected to the main movable plates 6 on the left and right sides, so that the short bar material 201 enters the heating coil 301 and maintains a coaxial state with the heating coil 301;

[0067] S4: Control the driving motor 8 to run, the output shaft of the driving motor 8 drives the support rod 7 to rotate, and the rotation of the support rod 7 drives the support roller 701 to rotate, and the anti-skid spiral conveying strip 702 on the support roller 701 generates friction with the short bar material 201 when rotating, and pushes the short bar material 201 forward in the rotation, so that the heating coil 301 uniformly heats each position of the curved surface of the short bar material 201;

[0068] S5: The pitch of the anti-skid spiral conveying strips 702 on the plurality of support rollers 701 distributed along the support rod 7 gradually changes, so that the multiple short bars 201 moving forward while rotating in the heating coil 301 are gradually separated one by one, and the end faces of the short bars 201 are exposed, so that the heating coil 301 can quickly heat the end faces of the short bars 201, and the short bars 201 that have been heated are removed from the coaxial seat 4 on the left side of the heating coil 301;

[0069] S6: Repeat S3-S5 to achieve quick and uniform heating of the remaining short bars 201 in the material box 2 in sequence.

[0070] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A forging heat treatment device, comprising a workbench (1), characterized in that: Also includes: A material box (2), the material box (2) being fixedly mounted on the workbench (1) and used for placing short bar materials (201), and a material outlet (202) being provided at the bottom of the material box (2); A pushing component, the pushing component is arranged on the workbench (1) and is used to push the short bar material (201) falling from the material box (2); A heat treatment piece (3), the heat treatment piece (3) being electrically connected to a heating coil (301) for heating the short bar material (201); A coaxial seat (4), the coaxial seat (4) being provided with two groups connected to the workbench (1) and respectively placed at two ends of the heating coil (301), the coaxial seat (4) being coaxially arranged with the heating coil (301); Wherein, a self-coaxial component is arranged on the coaxial seat (4), and a supporting portion for supporting the short bar material (201) is arranged on the self-coaxial component; The self-coaxial assembly comprises four elastic telescopic rods (5) uniformly arranged in a circle on a coaxial seat (4), the left and right two elastic telescopic rods (5) are connected to a main movable plate (6), the upper and lower two elastic telescopic rods (5) are connected to an auxiliary movable plate (9), and the main movable plate (6) and the auxiliary movable plate (9) together form a receiving area (603) for receiving the short bar material (201); The main movable plate (6) and the auxiliary movable plate (9) have the same structure, both comprising an arc-shaped plate (601) fixedly connected to the elastic telescopic rod (5) and a guide plate (602) arranged obliquely with respect to the arc-shaped plate (601), and an obtuse angle area (604) is formed between the arc-shaped plate (601) and the guide plate (602); The pushing assembly is placed in the middle of the coaxial seat (4), and the obtuse angle of the obtuse angle area (604) of the main movable plate (6) is greater than the obtuse angle of the obtuse angle area (604) of the auxiliary movable plate (9); The elastic telescopic rod (5) comprises a sleeve (501) fixedly connected to the coaxial seat (4), a movable rod (502) slidably connected in the sleeve (501), and an elastic element (503) arranged between the sleeve (501) and the movable rod (502); the movable rods (502) of the four elastic telescopic rods (5) on the coaxial seat (4) are all fixedly provided with a positioning rod (5021); a rotating plate (10) is rotatably connected in the coaxial seat (4); and a track groove (1001) matching the positioning rod (5021) is provided on the rotating plate (10); The support portion comprises a support rod (7) respectively connected to the main movable plates (6) on the left and right sides of the coaxial seat (4) and a plurality of support rollers (701) arranged on the support rod (7), wherein the plurality of support rollers (701) are arranged on the support rod (7) at equal intervals; A driving motor (8) is fixedly arranged in the main movable plate (6), the output shaft of the driving motor (8) is connected to the support rod (7), a plurality of anti-skid spiral conveying strips (702) are fixedly arranged on the support roller (701), and the anti-skid spiral conveying strips (702) are movably opposed to the short bar material (201); The pitch of the anti-slip spiral conveying strips (702) on the plurality of support rollers (701) gradually increases from one end of the support rod (7) to the other end; The pushing assembly comprises a conveying seat (11) fixed on a workbench (1) and a pushing cylinder (12); a piston rod of the pushing cylinder (12) is connected to a pushing seat (121) sliding on the conveying seat (11); and a conveying groove (111) for sliding the short bar material (201) is provided on the conveying seat (11).

2. A forging heat treatment process, using the forging heat treatment equipment according to claim 1 for processing, characterized in that: The following steps are involved: S1: First, a portion of the short bar material (201) to be processed is placed in a material box (2), and the short bar material (201) at the bottom of the material box (2) enters the conveying trough (111) from the discharge port (202) along the inclined surface at the bottom of the material box (2), and the push cylinder (12) is controlled to operate, so that the piston rod of the push cylinder (12) pushes the short bar material (201) in the conveying trough (111) to move toward the heating coil (301) through the push seat (121); S2: The short bar material (201) being pushed moves horizontally. Before entering the heating coil (301), it will first abut against the guide plates (602) on the left and right main movable plates (6) of the right coaxial seat (4). The guide plates (602) on the left and right sides of the coaxial seat (4) are subjected to force at the same time. The guide plates (602) transmit the force to the arc plate (601). The arc plate (601) squeezes the elastic telescopic rod (5). When the movable rod (502) of the elastic telescopic rod (5) contracts, it drives the positioning rod (5021) to move. The positioning rod (5021) cooperates with the track groove (1001) of the rotating plate (10) to make the rotating plate (10) relative to the coaxial seat. (4) rotating, the track groove (1001) on the rotating plate (10) exerts a force on the movable rod (502) of the upper and lower elastic telescopic rods (5) of the coaxial seat (4), thereby causing the upper and lower auxiliary movable plates (9) on the coaxial seat (4) to move up and down respectively, and the distance of the two auxiliary movable plates (9) moving up or down is equal to the distance of the two main movable plates (6) moving on the left and right. The area enclosed by the two main movable plates (6) and the two auxiliary movable plates (9) after moving automatically adapts to the size of the short rod (201), so that the short rod (201) is in the same straight line with the central axis of the coaxial seat (4) and the heating coil (301); S3: Then, the push cylinder (12) drives the push seat (121) to move back through the piston rod, and the push seat (121) no longer limits the short bar (201) at the discharge port (202). The short bar (201) at the discharge port (202) automatically falls into the conveying trough (111), and the push cylinder (12) is controlled to continue to work, so that the push seat (121) moves the short bar (201) in the conveying trough (111) toward the coaxial seat (4). At this time, the pushed short bar (201) will push out the short bar (201) placed in the coaxial seat (4), and the short bar (201) pushed out from the coaxial seat (4) slides along the support roller (701) on the support rod (7) connected to the main movable plates (6) on the left and right sides, so that the short bar (201) enters the heating coil (301) and maintains a coaxial state with the heating coil (301); S4: Controlling the driving motor (8) to operate, the output shaft of the driving motor (8) drives the support rod (7) to rotate, and the rotation of the support rod (7) drives the support roller (701) to rotate, and the anti-slip spiral conveying strip (702) on the support roller (701) generates friction with the short bar (201) when rotating, and pushes the short bar (201) forward during rotation, so that the heating coil (301) evenly heats various positions of the curved surface of the short bar (201); S5: the pitch of the anti-skid spiral conveying strips (702) on the plurality of support rollers (701) distributed along the support rod (7) gradually changes, so that the plurality of short bars (201) moving forward while rotating in the heating coil (301) are gradually separated one by one, and the end faces of the short bars (201) are exposed, so that the heating coil (301) can quickly heat the end faces of the short bars (201), and the short bars (201) that have been heated are removed from the coaxial seat (4) on the left side of the heating coil (301); S6: Repeat S3-S5 to achieve sequential, rapid and uniform heating of the remaining short bars (201) in the material box (2).

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