Heat treatment device for automobile shaft machining

By designing a heat treatment device for processing automobile axle parts including an automatic feeding preheating mechanism and an adjustable clamping and cleaning mechanism, the problem of not being able to adapt to different sizes of shaft parts in the prior art is solved, efficient shaft parts pretreatment and heating are achieved, and production efficiency and product quality are improved.

CN119876568AInactive Publication Date: 2025-04-25FUZHOU SHENLING ACCESSORIES CO LTD
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Patent Information

Application Number
CN202510147805.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, the automobile axle parts cannot be adapted to different sizes of shaft parts when heated and the equipment clamping is limited, resulting in low production efficiency and incomplete cleaning of the surface of some shaft parts.

Method used

A heat treatment device for processing automobile axle parts is designed, including a preheating table, a cooling tank, a magnetic heating ring, an automatic feeding and preheating mechanism and an adjustable clamping and cleaning mechanism. The automatic feeding and preheating mechanism adapts to shaft bodies of different lengths by adjusting the distance of the support plate in the adjustment groove; the adjustable clamping and cleaning mechanism realizes impurities cleaning and uniform heating on the surface of the shaft body through the cooperation of the gear sleeve and the cleanable clamp rod.

Benefits of technology

The device can quickly adapt to different sizes of automobile axles, improve production efficiency, reduce the complexity and error rate of manual operation, and ensure the cleanliness and heating uniformity of the shaft surface.

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Abstract

The invention discloses a heat treatment device for automobile shaft machining, and relates to the technical field of shaft preheating treatment.The heat treatment device comprises a preheating table, a cooling pond is installed on one side of the preheating table, a magnetic heating ring is installed on one side of the upper surface of the cooling pond, and a support is fixedly connected to the upper surface of the preheating table; at the moment, impurities on the surface of the shaft body can be quickly cleaned and removed through rotation of the cleanable clamping rod, meanwhile, when the shaft body is completely separated from the arc-shaped sliding groove, clamping of the shaft body can be achieved by adjusting the adjusting threaded sleeve, and when the shaft body is partially preheated under clamping of the cleanable clamping rod, the shaft body can be cleaned through rotation of the cleanable clamping rod device; the surface impurities can be quickly and effectively removed when the shaft body is pushed to the middle part, so that not only is the cleanliness of the shaft body improved, but also a good foundation is laid for subsequent processing treatment, and the potential influence of the impurities on the processing quality and the equipment performance is avoided.
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Description

Technical Field

[0001] The invention relates to the technical field of shaft preheating treatment, in particular to a heat treatment device for automobile shaft processing. Background Art

[0002] As key components that bear transmission force and torque, automobile shafts need to have excellent properties such as high strength, high toughness, and high wear resistance. Heat treatment can change the internal structure of the material to achieve higher mechanical performance requirements.

[0003] However, the following defects still exist in the heat treatment process of automobile shaft parts processing in the prior art:

[0004] 1. In the process of automobile heat treatment, cleaning the impurities on the surface of the shaft before preheating is a crucial step. However, due to equipment limitations, existing equipment can only clean impurities on shafts of the same size. Different cleaning tools need to be replaced or equipment parameters need to be adjusted for shafts of different sizes, which greatly increases production preparation time and reduces overall production efficiency. As a result, it is unable to adapt to automobile shafts of different sizes and diameters, which will further cause the equipment to be unable to meet the cleaning requirements of all shafts, resulting in incomplete cleaning of the surface of some shafts, affecting the subsequent heat treatment effect.

[0005] 2. When existing factories load materials, the existing loading methods can only adapt to automobile shafts of specific sizes or shapes. In order to meet diverse production needs, it is necessary to frequently replace fixtures or adjust equipment. Frequent replacement of fixtures or adjustment of equipment will take up a lot of production time, resulting in longer production cycles and reduced overall production efficiency. This not only increases production costs, but may also delay product delivery.

[0006] Therefore, a heat treatment device for automobile shaft processing is proposed to solve the above problems. Summary of the invention

[0007] In view of this, the technical problem to be solved by the present invention is to propose a heat treatment device for automobile shaft processing to solve the problem that the prior art cannot adapt to shafts of different sizes and has shaft clamping adaptation limitations during heating treatment of automobile shafts.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: A heat treatment device for automobile shaft processing, comprising a preheating table, a cooling pool is installed on one side of the preheating table, a magnetic heating ring is installed on one side of the upper surface of the cooling pool, a bracket is fixedly connected to the upper surface of the preheating table, and also comprises an automatic feeding preheating mechanism and an adjustable clamping and cleaning mechanism, the automatic feeding preheating mechanism is arranged on the bracket, and the adjustable clamping and cleaning mechanism is arranged on the magnetic heating ring;

[0009] The automatic feeding and preheating mechanism is used for automatic feeding and preheating of automobile shaft parts;

[0010] The adjustable clamping and cleaning mechanism is used for cleaning and clamping impurities during the pretreatment of automobile shaft parts.

[0011] Preferably, the automatic feeding and preheating mechanism includes a material hopper, the bottom of which is fixedly connected to the bracket, an arc-shaped slide groove is provided on the side of the material hopper close to the bracket, a push rod is provided above the arc-shaped slide groove, and a swing arm is fixedly connected to the end of the push rod away from the material hopper.

[0012] Preferably, an adjustment slot is provided in the swing arm, a support plate is rotatably connected to the middle of the adjustment slot, the support plate is rotatably connected to the bracket at one end away from the swing arm, and an auxiliary arm is rotatably connected to the end of the adjustment slot away from the push rod.

[0013] Preferably, the auxiliary arm is fixedly connected to a turntable at one end away from the swing arm, a motor is mounted on the bracket, and a drive shaft of the motor passes through the bracket and is fixedly connected to the middle of the turntable.

[0014] Preferably, the adjustable clamping and cleaning mechanism includes a driving gear, a motor is installed in the cooling pool, the cooling pool motor drive shaft is fixedly connected to the middle part of the driving gear, the driving gear tooth surface is meshed with a gear sleeve, and one side of the outer surface of the gear sleeve is rotatably connected to the magnetic heating ring.

[0015] Preferably, a sliding hole is provided on the circumference of the non-tooth surface of the side of the gear sleeve away from the magnetic heating ring, and a sliding shaft is slidably connected in the sliding hole, and one end of the sliding shaft is rotatably connected to a cleanable clamping rod.

[0016] Preferably, the other end of the sliding shaft is fixedly connected to an angled extrusion block, and a return spring is sleeved on the outer surface of one end of the sliding shaft close to the angled extrusion block, one end of the return spring is fixedly connected to the gear sleeve, and the other end of the return spring is fixedly connected to the angled extrusion block.

[0017] Preferably, the angled extrusion block is slidingly connected to a curved extrusion ring on the side away from the return spring, the curved extrusion ring is rotationally connected to an adjusting threaded sleeve on the side away from the angled extrusion block, the adjusting threaded sleeve is threadedly connected to a threaded fixing platform on the side away from the curved extrusion ring, and the bottom of the threaded fixing platform is fixedly connected to the cooling pool.

[0018] Compared with the prior art, the heat treatment device for automobile shaft processing provided by the present invention has the following beneficial effects:

[0019] 1. By adjusting the distance between the support plates in the adjustment grooves of the present invention, it is possible to quickly adapt to automobile axles of different lengths. The core of the present invention is to quickly adapt to and clamp automobile axles of different lengths by fine-tuning the spacing between the support plates in the adjustment grooves; thereby achieving a high degree of flexibility and adaptability, ensuring that the equipment can handle diverse production needs, and when the motor located at the bracket position is started, it drives the swing arm to swing accurately under the stable support structure of the support plate. Driven by the motor, the push rod located on the swing arm can accurately push the shaft into the magnetic heating ring for necessary heating treatment. The setting of the present invention not only improves production efficiency, but also effectively reduces the complexity and error rate of manual operation. Compared with traditional feeding methods, the innovation of the present invention can flexibly and variably clamp axles of different sizes, and through their joint cooperation, it is ensured that the automobile axle can smoothly and accurately complete the transportation and positioning work before heating.

[0020] 2. When the shaft is pushed to the middle of the cleanable clamping rod by the push rod, the impurities on the surface of the shaft can be quickly cleaned and removed by rotating the cleanable clamping rod. At the same time, when the shaft is completely out of the arc-shaped slide groove, the shaft can be clamped by adjusting the adjusting threaded sleeve. When the shaft is partially preheated under the clamping of the cleanable clamping rod, the rotation of the gear sleeve will drive the shaft to rotate synchronously, thereby achieving uniform heating of the heated part of the shaft. Through the rotation of the cleanable clamping rod device, the shaft can quickly and effectively remove surface impurities when it is pushed to the middle. This step not only improves the cleanliness of the shaft, but also lays a good foundation for subsequent processing and avoids the potential impact of impurities on processing quality and equipment performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is an auxiliary schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 It is a half-cut schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structural connection relationship of the automatic feeding and preheating mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0026] Figure 6 A schematic diagram of the structural connection relationship of the adjustable clamping and cleaning mechanism of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle.

[0028] In the figure:

[0029] 1. Preheating table; 11. Cooling pool; 12. Bracket; 13. Magnetic heating coil;

[0030] 2. Automatic feeding and preheating mechanism; 21. Material bucket; 22. Arc chute; 23. Push rod; 24. Swing arm; 25. Adjustment slot; 26. Support plate; 27. Auxiliary arm; 28. Turntable;

[0031] 3. Adjustable clamping and cleaning mechanism; 31. Driving gear; 32. Gear sleeve; 33. Sliding shaft; 34. Reset spring; 35. Angled extrusion block; 36. Arc extrusion ring; 37. Adjustable threaded sleeve; 38. Cleanable clamping rod; 39. Threaded fixing table. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0034] Example

[0035] Please refer to Figures 1 to 7 As shown:

[0036] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a heat treatment device for automobile shaft processing, including a preheating table 1, a cooling pool 11 is installed on one side of the preheating table 1, a magnetic heating ring 13 is installed on one side of the upper surface of the cooling pool 11, a bracket 12 is fixedly connected to the upper surface of the preheating table 1, and also includes an automatic feeding preheating mechanism 2 and an adjustable clamping and cleaning mechanism 3, the automatic feeding preheating mechanism 2 is arranged on the bracket 12, and the adjustable clamping and cleaning mechanism 3 is arranged on the magnetic heating ring 13;

[0037] The automatic feeding and preheating mechanism 2 is used for automatic feeding and preheating of automobile shaft parts;

[0038] The adjustable clamping and cleaning mechanism 3 is used for cleaning and clamping impurities during the pretreatment of automobile shaft parts;

[0039] The automatic feeding and preheating mechanism 2 includes a material hopper 21, the bottom of which is fixedly connected to the bracket 12, an arc-shaped chute 22 is provided on the side of the material hopper 21 close to the bracket 12, a push rod 23 is provided above the arc-shaped chute 22, and a swing arm 24 is fixedly connected to the end of the push rod 23 away from the material hopper 21;

[0040] An adjusting slot 25 is provided in the swing arm 24, a support plate 26 is rotatably connected to the middle of the adjusting slot 25, an end of the support plate 26 away from the swing arm 24 is rotatably connected to the bracket 12, and an end of the adjusting slot 25 away from the push rod 23 is rotatably connected to an auxiliary arm 27;

[0041] One end of the auxiliary arm 27 away from the swing arm 24 is fixedly connected to a turntable 28 , and a motor is installed on the bracket 12 .

[0042] Wherein: the motor drive shaft passes through the bracket 12 and is fixedly connected to the middle of the turntable 28;

[0043] Due to equipment limitations, existing equipment can only clean impurities on shafts of the same size. Since shafts of different sizes require the replacement of different cleaning tools or adjustment of equipment parameters, this greatly increases production preparation time and reduces overall production efficiency, and is unable to adapt to automobile shafts of different sizes and diameters. Compared with the prior art, through the implementation of this embodiment and the innovation of the present invention, shafts of different sizes can be clamped flexibly and variably, and through their joint cooperation, it is ensured that the automobile shaft can smoothly and accurately complete the transportation and positioning work before heating.

[0044] For further examples, please refer to Figures 1 to 7 As shown:

[0045] The adjustable clamping cleaning mechanism 3 includes a driving gear 31, a motor is installed in the cooling pool 11, the motor driving shaft of the cooling pool 11 is fixedly connected to the middle of the driving gear 31, the tooth surface of the driving gear 31 is meshed with a gear sleeve 32, and one side of the outer surface of the gear sleeve 32 is rotatably connected to the magnetic heating ring 13;

[0046] A sliding hole is provided on the circumference of the gear sleeve 32 at the non-tooth surface of the side away from the magnetic heating ring 13, and a sliding shaft 33 is slidably connected in the sliding hole, and a cleanable clamping rod 38 is rotatably connected to one end of the sliding shaft 33;

[0047] The other end of the sliding shaft 33 is fixedly connected to an angled extrusion block 35. A return spring 34 is sleeved on the outer surface of one end of the sliding shaft 33 close to the angled extrusion block 35. One end of the return spring 34 is fixedly connected to the gear sleeve 32, and the other end of the return spring 34 is fixedly connected to the angled extrusion block 35.

[0048] The side of the angled extrusion block 35 away from the return spring 34 is slidably connected to a curved extrusion ring 36, the side of the curved extrusion ring 36 away from the angled extrusion block 35 is rotatably connected to an adjusting threaded sleeve 37, the side of the adjusting threaded sleeve 37 away from the curved extrusion ring 36 is threadedly connected to a threaded fixing platform 39, and the bottom of the threaded fixing platform 39 is fixedly connected to the cooling pool 11;

[0049] Wherein: an infrared sensing device is installed in the adjusting threaded sleeve 37 , and under the induction of the infrared sensing device, an internal electrical signal is transmitted to the control unit for control, and the control unit converts the electrical signal and transmits it to the motor installed on the cooling pool 11 .

[0050] In the prior art, when existing factories load materials, the existing loading method can only adapt to automobile shafts of specific sizes or shapes. For diversified production needs, it is necessary to frequently replace fixtures or adjust equipment. Frequent replacement of fixtures or adjustment of equipment will take up a lot of production time, resulting in lengthened production cycle and reduced overall production efficiency. Compared with the prior art, through the implementation of this embodiment, through the rotation of the cleanable clamp rod 38 device, the shaft body can quickly and effectively remove surface impurities when it is pushed to the middle. This step not only improves the cleanliness of the shaft body, but also lays a good foundation for subsequent processing and avoids the potential impact of impurities on processing quality and equipment performance.

[0051] Everything in the above example works like this:

[0052] In the initial state: the shaft parts to be processed are evenly placed in the material hopper 21, the motor is not started, and the magnetic heating coil 13 is not heated.

[0053] The following is the working process of the automatic feeding and preheating mechanism 2 for automatic feeding and preheating of automobile shaft parts:

[0054] During use, the operator first starts the motor installed on the bracket 12, and the rotation of the motor drives the turntable 28 fixedly connected to the motor drive shaft to start rotating. At this time, the auxiliary arm 27 fixedly connected to the middle of the turntable 28 starts to rotate synchronously with the rotation of the turntable 28, because the auxiliary arm 27 is rotatably connected to the adjustment slot 25 provided in the swing arm 24 at one end away from the turntable 28, and the support plate 26 is rotatably connected to the middle of the adjustment slot 25, and the support plate 26 is rotatably connected to the bracket 12 at one end away from the swing arm 24. Therefore, the rotation of the auxiliary arm 27 drives the swing arm 24 to drive the magnetic heating coil 13 to start swinging horizontally, and the swinging of the magnetic heating coil 13 pushes the shaft body in the arc slot 22 into the magnetic heating coil 13, and the continued rotation of the auxiliary arm 27 drives the magnetic heating coil again 13 swings to the leftmost initial position of the arc-shaped slide groove 22. By adjusting the distance of the support plate 26 in the adjustment groove 25 of the present invention, it can quickly adapt to automobile shafts of different lengths. The core is to quickly adapt to and clamp automobile shafts of different lengths by fine-tuning the spacing of the support plate 26 in the adjustment groove 25; thereby achieving a high degree of flexibility and adaptability, ensuring that the equipment can handle diverse production needs, and when the motor located at the position of the bracket 12 is started, it drives the swing arm 24 to swing accurately under the stable support structure of the support plate 26. Under the drive of the motor, the push rod 23 located on the swing arm 24 can accurately push the shaft into the magnetic heating ring 13 for necessary heating treatment. The setting of the present invention not only improves production efficiency, but also effectively reduces the complexity and error rate of manual operation.

[0055] Please refer to the above working process Figures 1 to 7 .

[0056] The following is the working process of the adjustable clamping and cleaning mechanism 3 for cleaning and clamping impurities during the pretreatment of automobile shaft parts:

[0057] During use, when the bracket 12 is pushed onto the magnetic heating ring 13, because an infrared sensing device is installed in the adjusting threaded sleeve 37, when the shaft body is pushed into the magnetic heating ring 13, under the induction of the infrared sensing device, the internal electrical signal is transmitted to the control unit for control, and the control unit converts the electrical signal and transmits it to the motor installed on the cooling pool 11. At this time, the motor starts to rotate, and because the motor drive shaft is fixedly connected to the middle of the driving gear 31, the rotation of the motor will drive the driving gear 31 to start rotating synchronously. At this time, because the tooth surface of the driving gear 31 is meshed with the gear sleeve 32, the rotation of the driving gear 31 will drive the gear sleeve 32 to start rotating in the opposite direction relative to the driving gear 31. At this time, because the gear sleeve 32 is away from the magnetic heating ring 13, a sliding hole is opened on the circumference of the non-tooth surface, and A sliding shaft 33 is slidably connected in the sliding hole, and a cleanable clamping rod 38 is rotatably connected to one end of the sliding shaft 33. The angled extrusion block 35 is slidably connected to an arc extrusion ring 36 on the side away from the return spring 34. The arc extrusion ring 36 is rotatably connected to an adjusting threaded sleeve 37 on the side away from the angled extrusion block 35. The adjusting threaded sleeve 37 is threadedly connected to a threaded fixing platform 39 on the side away from the arc extrusion ring 36. The bottom of the threaded fixing platform 39 is fixedly connected to the cooling pool 11; all rotations of the gear sleeve 32 will drive the sliding shaft 33 to drive the cleanable clamping rod 38 to clean the surface of the shaft body. Through the rotation of the cleanable clamping rod 38 device, the shaft body can quickly and effectively remove surface impurities when it is pushed to the middle. This step not only improves the cleanliness of the shaft body, but also lays a good foundation for subsequent processing and avoids the potential impact of impurities on processing quality and equipment performance.

[0058] At the same time, when the shaft body is completely out of the arc slot 22, the operator can manually rotate the adjusting threaded sleeve 37, because the adjusting threaded sleeve 37 is threadedly connected to the threaded fixing platform 39. At this time, rotating the adjusting threaded sleeve 37 will drive the arc surface extrusion ring 36 to extrude the inclined surface of the angled extrusion block 35. Because the angled extrusion block 35 is circumferentially arranged on the gear sleeve 32, and the arc surface extrusion ring 36 is rotatably connected to the adjusting threaded sleeve 37, the sliding shaft 33 can be squeezed toward the middle of the adjusting threaded sleeve 37 as a whole by rotating the adjusting threaded sleeve 37. At this time, the shaft surface is clamped by the cleanable clamping rod 38 and then driven to rotate by the gear sleeve 32 to cause the shaft body to rotate in the magnetic heating ring 13. At this time, starting and heating the magnetic heating ring 13 can make the shaft body heated more evenly in the magnetic heating ring 13. Under the clamping of the cleanable clamping rod 38, the shaft body enters the preheating stage. At this time, the synchronous rotation of the gear sleeve 32 drives the rotation of the shaft, so that the heating energy can be evenly distributed in various parts of the shaft, avoiding the problem of local overheating or uneven heating, and improving the preheating effect and product consistency.

[0059] Please refer to the above working process Figures 1 to 7 .

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment device for automobile shaft processing, used for preheating and cleaning automobile shafts, comprising a preheating table (1), a cooling pool (11) is installed on one side of the preheating table (1), a magnetic heating ring (13) is installed on one side of the upper surface of the cooling pool (11), and a bracket (12) is fixedly connected to the upper surface of the preheating table (1), characterized in that: It also includes an automatic feeding and preheating mechanism (2) and an adjustable clamping and cleaning mechanism (3), wherein the automatic feeding and preheating mechanism (2) is arranged on a bracket (12), and the adjustable clamping and cleaning mechanism (3) is arranged on a magnetic heating ring (13); The automatic loading and preheating mechanism (2) is used for automatic loading and preheating of automobile shaft parts; The adjustable clamping and cleaning mechanism (3) is used for cleaning and clamping impurities during the pre-treatment of automobile shaft parts.

2. The heat treatment device for automobile shaft processing according to claim 1, characterized in that: The automatic feeding and preheating mechanism (2) comprises a material hopper (21), the bottom of which is fixedly connected to a bracket (12), an arc-shaped slide groove (22) is provided on a side of the material hopper (21) close to the bracket (12), a push rod (23) is provided above the arc-shaped slide groove (22), and a swing arm (24) is fixedly connected to one end of the push rod (23) away from the material hopper (21).

3. The heat treatment device for automobile shaft processing according to claim 2, characterized in that: An adjusting slot (25) is provided in the swing arm (24), a support plate (26) is rotatably connected to the middle of the adjusting slot (25), an end of the support plate (26) away from the swing arm (24) is rotatably connected to the bracket (12), and an end of the adjusting slot (25) away from the push rod (23) is rotatably connected to an auxiliary arm (27).

4. The heat treatment device for automobile shaft processing according to claim 3 is characterized in that: The auxiliary arm (27) is fixedly connected to a turntable (28) at one end away from the swing arm (24), and a motor is installed on the bracket (12). The motor drive shaft passes through the bracket (12) and is fixedly connected to the middle of the turntable (28).

5. The heat treatment device for automobile shaft processing according to claim 1, characterized in that: The adjustable clamping cleaning mechanism (3) comprises a driving gear (31), a motor is installed in the cooling pool (11), the motor driving shaft of the cooling pool (11) is fixedly connected to the middle of the driving gear (31), the tooth surface of the driving gear (31) is meshed with a gear sleeve (32), and one side of the outer surface of the gear sleeve (32) is rotatably connected to the magnetic heating ring (13).

6. The heat treatment device for automobile shaft processing according to claim 5, characterized in that: A sliding hole is provided on the circumference of the gear sleeve (32) at the non-tooth surface on the side away from the magnetic heating ring (13), and a sliding shaft (33) is slidably connected in the sliding hole. One end of the sliding shaft (33) is rotatably connected to a cleanable clamping rod (38).

7. The heat treatment device for automobile shaft processing according to claim 6, characterized in that: The other end of the sliding shaft (33) is fixedly connected to an angled extrusion block (35); a return spring (34) is sleeved on the outer surface of one end of the sliding shaft (33) close to the angled extrusion block (35); one end of the return spring (34) is fixedly connected to the gear sleeve (32); and the other end of the return spring (34) is fixedly connected to the angled extrusion block (35).

8. The heat treatment device for automobile shaft processing according to claim 7, characterized in that: The side of the angled extrusion block (35) away from the return spring (34) is slidably connected to a curved extrusion ring (36), the side of the curved extrusion ring (36) away from the angled extrusion block (35) is rotationally connected to an adjusting threaded sleeve (37), the side of the adjusting threaded sleeve (37) away from the curved extrusion ring (36) is threadedly connected to a threaded fixing platform (39), and the bottom of the threaded fixing platform (39) is fixedly connected to the cooling pool (11).