Heat treatment furnace for machining axle accessories

Abstract

The invention relates to the technical field of axle accessory heat treatment, and discloses a heat treatment furnace for axle accessory machining, the heat treatment furnace comprises a heat treatment furnace main body, the front end of the heat treatment furnace main body is correspondingly connected with a base, the top of the base is fixedly connected with a lifting device, and the lifting device comprises a transportation device; the top of the conveying device is correspondingly connected with a moving device, the conveying device is used for driving the moving device to conduct left-right position adjustment in the horizontal direction, the moving device is used for conducting up-down adjustment in the vertical direction after the horizontal position adjustment, and the front end of the moving device is fixedly connected with a movable device. The movable device is used for pushing the axle accessories placed at the front end forwards and conveying the axle accessories into the heat treatment furnace body.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment of axle parts, in particular to a heat treatment furnace for processing axle parts. Background Art

[0002] In the production and processing of axle components, heat treatment is a critical step in ensuring product performance. This process, through heating, insulation, and cooling, effectively improves mechanical properties such as strength, hardness, and wear resistance. However, conventional axle component heat treatment technology has gradually exposed numerous issues that require urgent resolution during practical application.

[0003] Traditionally, component loading relies heavily on manual labor. This inefficiency makes it difficult to meet the demands of modern, large-scale production. Furthermore, due to human factors, the handling process often results in inaccurate component placement. Improper positioning of components within the heat treatment furnace results in uneven heating, severely impacting product quality and increasing the defective rate.

[0004] Traditional devices lack efficient and precise automated adjustment mechanisms for adjusting the position and angle of components. Existing adjustment methods are either complex and cumbersome, requiring significant time and labor costs, or lack the precision to meet the stringent requirements of modern component heat treatment. This makes it difficult to achieve ideal process parameters during heat treatment, hindering product quality. Summary of the Invention

[0005] The object of the present invention is to provide a heat treatment furnace for processing axle parts to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat treatment furnace for processing axle parts, comprising a heat treatment furnace body, a base correspondingly connected to the front end of the heat treatment furnace body, a lifting device fixedly connected to the top of the base, the lifting device being used to adjust the position and angle of the axle parts to facilitate uniform heating in the heat treatment furnace body, the lifting device comprising a transport device, a moving device correspondingly connected to the top of the transport device, the transport device being used to drive the moving device to adjust its horizontal position left and right, and the moving device being used to adjust the vertical position up and down after the horizontal position is adjusted, so as to achieve rapid and accurate adjustment of the axle parts to a suitable angle;

[0007] The front end of the moving device is fixedly connected to a movable device, and the movable device is used to push the axle accessories placed at the front end forward and send them into the heat treatment furnace body, thereby completing the loading of accessories simply and efficiently by pushing and placing.

[0008] As a preferred technical solution of the present invention, the transport device includes a first slide rail, a first rack is fixedly connected to a groove portion on one side of the first slide rail, a first gear is meshedly connected to the outer surface of the first rack, and a first rotating column is fixedly connected to the top of the first gear, and the first rotating column is used to drive the transport device to move horizontally along the first slide rail.

[0009] As a preferred technical solution of the present invention, first pulleys are movably connected to the grooves at both ends of the bottom of the first slide rail, and the tops of the two first pulleys are movably connected to connecting blocks. The tops of the two connecting blocks are fixedly connected to support plates, and the tops of the support plates are connected to a moving device. The center of the bottom of the support plate is correspondingly connected to a second pulley, and the center of the second pulley is movably connected to a rotating shaft.

[0010] As a preferred technical solution of the present invention, the moving device includes a second slide rail, a second rack is fixedly connected to the outer side of the second slide rail, the outer surface of the second rack is meshed with two second gears, the centers of the two second gears are movably connected to a third pulley, and the outer surfaces of the two third pulleys are movably connected to the groove of the second slide rail.

[0011] As a preferred technical solution of the present invention, the second slide rail is fixedly connected to the top of the second rack with one end of a top plate, the other end of the top plate is fixedly connected to a second rotating column, and the bottom of the second rotating column is connected to the first rotating column, and a rectangular plate is connected through the outer surface of the second rotating column, and two rotating blocks are movably connected to the top of the front end of the rectangular plate.

[0012] As a preferred technical solution of the present invention, the outer surfaces of the two rotating blocks are movably connected with bandages, the bottom of the front end of the rectangular plate is respectively connected to the motor and the rotating block, and the top of the motor and the rotating block are respectively connected to the bottom of the two rotating blocks, and the bottom of the rotating block is fixedly connected to a movable device.

[0013] As a preferred technical solution of the present invention, the movable device includes a groove block, a fixed block is fixedly connected to the center of the top of the groove block, and the top of the fixed block is fixedly connected to the bottom of the rotating block, two first elliptical blocks are fixedly connected to the groove at one end of the top of the groove block, and the hollow parts of the two first elliptical blocks are movably connected to telescopic rods, and triangular blocks are movably connected to both sides of the top of the two telescopic rods.

[0014] As a preferred technical solution of the present invention, the bottom ends of the two triangular blocks are fixedly connected to a bracket, the rear end raised part of the bottom of the bracket is movably connected to two second elliptical blocks, and the bottoms of the two second elliptical blocks are fixedly connected to the groove at the other end of the top of the groove block, and the front end groove of the bracket is fixedly connected to a placement plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) A heat treatment furnace for processing axle parts, by arranging a first rack on one side of a first slide rail, the first gear can be meshed and slid along the outer surface of the first rack, thereby driving the first rotating column connected to the top of the first gear and the second rotating column in the moving device to move, and the first pulleys corresponding to the grooves on both sides of the first slide rail slide left and right under the drive of the motor, so that the second pulley located between the two connecting blocks moves smoothly along the groove at the top of the first slide rail. This design can not only effectively avoid the jamming phenomenon caused by long-term use, but also quickly adjust the position of the moving device connected to the top of the support plate, realize the coordinated cooperation between the transport device and the moving device, and improve the stability and efficiency of the overall operation.

[0017] (2) A heat treatment furnace for processing axle parts, which can easily drive the entire moving device to move left and right by arranging the second slide rail and the second rack on the top of the support plate respectively. When the two second gears engaged with the outer surface of the second rack move up and down, they will drive the third pulley connected to the center to move up and down along the groove of the second slide rail. This design can not only make the rectangular plate move up and down by rotating the second rotating column, but also use the two second gears to drive the rectangular plate to move up and down, thereby achieving precise adjustment and stable operation of the moving device.

[0018] (3) A heat treatment furnace for processing axle parts, which connects the second rotating column with the first rotating column and utilizes the rotation of the first gear connected to the bottom of the first rotating column to conveniently drive the rectangular plate connected to the outer surface of the second rotating column to move up and down, effectively reducing the weight of the parts borne by the movable device connected to the bottom of the rotating block. When one of the rotating blocks is driven by the motor connected to the bottom, it will drive the rotation of the rotating block at the other end and the rotating block and movable device connected to the bottom to rotate through the connection of the bandage on the outer surface, so as to adjust the direction of the parts and accurately place them in the main body of the heat treatment furnace.

[0019] (4) A heat treatment furnace for processing axle parts, which can use the rotation of the rotating block to drive the movable device to rotate as a whole by connecting the fixed block and the rotating block. When the two telescopic rods are extended forward by the motor, they will push the triangular block with a movably connected top to move forward. The triangular block is fixedly connected to the rear end of the bracket, and the rear end raised part of the bracket is movably connected to the groove at the top of the second elliptical block. Therefore, under the push of the two telescopic rods, the bracket will drive the placement plate fixed at the bottom end and the accessories placed on the top to move downward, and finally the accessories will be smoothly poured into the main body of the heat treatment furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side structural schematic diagram of the present invention;

[0021] Figure 2 This is an overall schematic diagram of the lifting device in the present invention;

[0022] Figure 3 Schematic diagram of the transport device in the present invention;

[0023] Figure 4 Schematic diagram of the connection relationship of the outer surface of the first slide rail in the present invention;

[0024] Figure 5 is a schematic diagram of a mobile device in the present invention;

[0025] Figure 6 This is a schematic diagram of the connection relationship between the upper and lower ends of the support plate in the present invention;

[0026] Figure 7 Schematic diagram of the movable device in the present invention;

[0027] Figure 8 Schematic diagram of the connection relationship of the top end of the telescopic rod in the present invention.

[0028] In the figure: 1. base; 2. lifting device; 21. transport device; 211. first slide rail; 212. first rack; 213. first gear; 214. first rotating column; 215. first pulley; 216. connecting block; 217. support plate; 218. second pulley; 219. rotating shaft; 22. moving device; 221. second slide rail; 222. second rack; 223. second gear; 224. third pulley; 225. top plate; 226. second rotating column; 227. rectangular plate; 228. rotating block; 229. bandage; 2210. motor; 2211. rotating block; 23. movable device; 231. groove block; 232. fixed block; 233. first elliptical block; 234. telescopic rod; 235. triangular block; 236. bracket; 237. second elliptical block; 238. placement plate; 3. heat treatment furnace body. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] Example: See Figures 1-8A heat treatment furnace for processing axle parts includes a heat treatment furnace main body 3, a base 1 is provided at the front end of the heat treatment furnace main body 3, and the front end of the heat treatment furnace main body 3 is correspondingly connected to one end of the base 1, a lifting device 2 is provided on the top of the base 1, and the top of the base 1 is fixedly connected to the bottom of the lifting device 2, the lifting device 2 is used to adjust the position and angle of the axle parts so as to perform uniform heating in the heat treatment furnace main body 3, the lifting device 2 includes a transport device 21, and a moving device 22 is correspondingly connected to the top of the transport device 21, the transport device 21 is used to drive the moving device 22 to adjust the horizontal position left and right, and the moving device 22 is used to adjust the vertical direction up and down after the horizontal position is adjusted, so as to quickly and accurately adjust the axle parts to a suitable angle;

[0031] The front end of the moving device 22 is fixedly connected to a movable device 23, and the movable device 23 is used to push the axle accessories placed at the front end forward and send them into the heat treatment furnace body 3, thereby completing the loading of accessories simply and efficiently by pushing and placing.

[0032] The transport device 21 includes a first slide rail 211, a first rack 212 is provided in a groove portion on one side of the first slide rail 211, and the groove portion on one side of the first slide rail 211 is fixedly connected to the rear end of the first rack 212, a first gear 213 is provided on the outer surface of the first rack 212, and the outer surface of the first rack 212 is meshed with the outer surface of the first gear 213, a first rotating column 214 is provided on the top of the first gear 213, and the top of the first gear 213 is fixedly connected to the bottom of the first rotating column 214, and the first rotating column 214 is used to drive the transport device 21 to move horizontally along the first slide rail 211.

[0033] The grooves at both ends of the bottom of the first slide rail 211 are each provided with a first pulley 215, and the grooves at both ends of the bottom of the first slide rail 211 are movably connected to the outer surface of the first pulley 215, the tops of the two first pulleys 215 are each provided with a connecting block 216, and the tops of the two first pulleys 215 are movably connected to the raised parts of the bottom of the connecting block 216, the tops of the two connecting blocks 216 are provided with a support plate 217, and the tops of the two connecting blocks 216 are fixedly connected to the two ends of the bottom of the support plate 217, the top of the support plate 217 is provided with a moving device 22, and the top of the support plate 217 is connected to the bottom of the moving device 22, the bottom center of the support plate 217 is provided with a second pulley 218, and the bottom center of the support plate 217 is correspondingly connected to the outer surface of the second pulley 218, the center of the second pulley 218 is provided with a rotating shaft 219, through A first rack 212 is provided on one side of the first slide rail 211, which can enable the first gear 213 to engage and slide along the outer surface of the first rack 212, thereby driving the first rotating column 214 connected to the top of the first gear 213 and the second rotating column 226 in the moving device 22 to move. The first pulleys 215 corresponding to the grooves on both sides of the first slide rail 211 slide left and right under the drive of the motor 2210, so that the second pulley 218 located between the two connecting blocks 216 moves smoothly along the groove at the top of the first slide rail 211. This design can not only effectively avoid the jamming phenomenon caused by long-term use, but also quickly adjust the position of the moving device 22 connected to the top of the support plate 217, thereby realizing the coordinated cooperation between the transportation device 21 and the moving device 22, improving the stability and efficiency of the overall operation, and the center of the second pulley 218 is movably connected to the outer surface of the rotating shaft 219.

[0034] The moving device 22 includes a second slide rail 221, a second rack 222 is provided on the outer side of the second slide rail 221, and the outer side of the second slide rail 221 is fixedly connected to the inner side of the second rack 222, and the bottom of the second slide rail 221 and the second rack 222 are both connected to the top of the support plate 217, two second gears 223 are provided on the outer surface of the second rack 222, and the outer surface of the second rack 222 is meshed with the outer surfaces of the two second gears 223, a third pulley 224 is provided at the center of the two second gears 223, and the centers of the two second gears 223 are movably connected to the rear end protrusion of the third pulley 224, and the outer surfaces of the two third pulleys 224 are movably connected to the groove of the second slide rail 221.

[0035] A top plate 225 is provided on the top of the second slide rail 221 and the second rack 222, and the top of the second slide rail 221 and the second rack 222 is fixedly connected to one end of the top plate 225, and a second rotating column 226 is provided on the other end of the top plate 225, and the other end of the top plate 225 is fixedly connected to the top of the second rotating column 226, and the bottom of the second rotating column 226 is connected to the first rotating column 214, and a rectangular plate 227 is provided on the outer surface of the second rotating column 226, and the outer surface of the second rotating column 226 is connected to the inside of the rectangular plate 227 through the second slide rail 221. The second rack 222 and the second gear 223 are respectively arranged on the top of the support plate 217, which can easily drive the entire mobile device 22 to move left and right. When the two second gears 223 engaged with the outer surface of the second rack 222 move up and down, they will drive the third pulley 224, which is movably connected to the center, to move up and down along the groove of the second slide rail 221. This design not only allows the rectangular plate 227 to move up and down through the rotation of the second rotating column 226, but also uses the two second gears 223 to drive the rectangular plate 227 up and down, thereby achieving precise adjustment and stable operation of the mobile device 22. Two rotating blocks 228 are provided at the top of the front end of the rectangular plate 227, and the top of the front end of the rectangular plate 227 is movably connected to the bottom of the two rotating blocks 228.

[0036] The outer surfaces of the two rotating blocks 228 are provided with bandages 229, and the outer surfaces of the two rotating blocks 228 are movably connected to the inner surfaces of the bandages 229. The front bottom of the rectangular plate 227 is respectively provided with a motor 2210 and a rotating block 2211, and the front bottom of the rectangular plate 227 is respectively connected to the motor 2210 and the top of the rotating block 2211, and the output shaft of the motor 2210 and the top of the rotating block 2211 are respectively connected to the bottom of the two rotating blocks 228. The bottom of the rotating block 2211 is provided with a movable device 23. By connecting the second rotating column 226 to the first rotating column 214, The rotation of the first gear 213 connected to the bottom of the first rotating column 214 facilitates the vertical movement of the rectangular plate 227 connected to the outer surface of the second rotating column 226, effectively reducing the weight of the accessory borne by the movable device 23 connected to the bottom of the rotating block 2211. When one rotating block 228 is driven by the motor 2210 connected to the corresponding bottom, it drives the rotation of the other rotating block 228 and its bottom-connected rotating block 2211 and the movable device 23 through the connection of the outer surface bandage 229, thereby adjusting the direction of the accessory and accurately placing it in the heat treatment furnace body 3. The bottom of the rotating block 2211 is fixedly connected to the top of the movable device 23.

[0037] The movable device 23 includes a groove block 231, a fixed block 232 is provided at the top center of the groove block 231, and the top center of the groove block 231 is fixedly connected to the bottom of the fixed block 232, and the top of the fixed block 232 is fixedly connected to the bottom of the rotating block 2211, two first elliptical blocks 233 are provided at the groove at one end of the top of the groove block 231, and the groove at one end of the top of the groove block 231 is fixedly connected to the rear ends of the two first elliptical blocks 233, telescopic rods 234 are provided at the hollow parts of the two first elliptical blocks 233, and the hollow parts of the two first elliptical blocks 233 are movably connected to the bottom of the telescopic rod 234, triangular blocks 235 are provided on both sides of the top of the two telescopic rods 234, and both sides of the top of the two telescopic rods 234 are movably connected to the center of the triangular block 235.

[0038] The bottom ends of the two triangular blocks 235 are provided with brackets 236, and the bottom ends of the two triangular blocks 235 are fixedly connected to the rear end center of the bracket 236. The raised portion at the bottom rear end of the bracket 236 is provided with two second elliptical blocks 237, and the raised portion at the bottom rear end of the bracket 236 is movably connected to the grooves at the top of the two second elliptical blocks 237, and the bottoms of the two second elliptical blocks 237 are fixedly connected to the groove at the other end of the top of the groove block 231. A placing plate 238 is provided at the groove at the front end of the bracket 236. By connecting the fixed block 232 with the rotating block 2211, the rotating block 2211 can be used to rotate the bracket 236. The rotation of the rotating block 2211 drives the entire movable device 23 to rotate. When the two telescopic rods 234 extend forward under the drive of the motor 2210, they push the triangular block 235, which is movably connected at the top, to move forward. The triangular block 235 is fixedly connected to the rear end of the bracket 236, and the rear end protrusion of the bracket 236 is movably connected to the groove at the top of the second elliptical block 237. Therefore, under the push of the two telescopic rods 234, the bracket 236 drives the placement plate 238 fixed at the bottom end and the accessories placed on top to move downward, ultimately pouring the accessories smoothly into the interior of the heat treatment furnace body 3. The groove at the front end of the bracket 236 is fixedly connected to one end of the placement plate 238.

[0039] The working principle of the present invention is as follows:

[0040] First, the position and angle of the axle accessories are adjusted by the lifting device 2 on the top of the base 1 to ensure that the accessories can be heated evenly. Then, the accessories are poured into the heat treatment furnace body 3 using the movable device 23 in the lifting device 2. The lifting device 2 includes a transport device 21, and the transport device 21 includes a first slide rail 211. One side of the first slide rail 211 is fixedly connected to the first rack 212. When the first gear 213 meshing with the outer surface of the first rack 212 slides left and right, it will drive the first rotating column 214 connected to the top of the first gear 213 and the second rotating column 226 on the top of the first rotating column 214 to rotate and slide together. The first pulley 215 movably connected to the grooves on both sides of the first slide rail 211 will move horizontally under the sliding action of the second pulley 218 between the two connecting blocks 216 connected at the top. This can ensure that the bottom of the device can still operate flexibly even after long-term use, thereby realizing the adjustment of the left and right position of the accessories.

[0041] The movable device 22 includes a second slide rail 221, and the outer surfaces of the second slide rail 221 and the second rack 222 fixedly connected to the outside thereof are movably connected with a third pulley 224 and a second gear 223. When the motor 2210 drives the two third pulleys 224 and the second gear 223 to move up and down along the second slide rail 221, it will drive the rectangular plate 227 movably connected to the rear ends of the two second gears 223 to move synchronously. Through such operation, the rectangular plate 227 can not only move up and down with the help of the rotation of the second rotating column 226, but also move under the drive of the two second gears 223 and the third pulley 224. This arrangement fully reduces the weight of the movable device 23 corresponding to the bottom of the rotating block 2211 and the accessories placed on the movable device 23. The bottom of one of the rotating blocks 228 is connected to the top of the motor 2210. When the rotating block 228 rotates under the drive of the motor 2210, the bandage 229 connects the rotating block 228 at the other end and rotates accordingly, driving the rotating block 2211 and the movable device 23 at the bottom thereof to rotate. This allows the movable device 23 to automatically change direction, making it easier to manually place accessories on the movable device 23 later.

[0042] The movable device 23 includes a fixed block 232, the top of which is fixedly connected to the bottom of the rotating block 2211. Therefore, under the drive of the movable device 22, the movable device 23 can change direction. When the two telescopic rods 234 are driven forward by the motor 2210, they push the triangular block 235, which is movably connected to the top of the triangular block 235, to deflect forward. Since the bottom end of the triangular block 235 is fixedly connected to the rear end of the bracket 236, when the bracket 236 is pushed downward by the telescopic rods 234, the second elliptical block 237, which is movably connected to the raised portion at the bottom of the bracket 236, will promptly provide support and cooperate with the downward movement of the bracket 236. In this way, the placement plate 238 fixedly connected to the bottom front end of the bracket 236 and the accessories placed on the top of the placement plate 238 can be quickly poured into the interior of the heat treatment furnace body 3, effectively improving production efficiency, reducing the difficulty of manual operation, and ensuring that the accessories can be evenly heated and accurately placed during the heat treatment process.

[0043] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment furnace for processing axle parts, comprising a heat treatment furnace body (3), a base (1) correspondingly connected to the front end of the heat treatment furnace body (3), a lifting device (2) fixedly connected to the top of the base (1), the lifting device (2) being used to adjust the position and angle of the axle parts so as to facilitate uniform heating in the heat treatment furnace body (3), characterized in that: The lifting device (2) includes a transport device (21), the top of the transport device (21) is correspondingly connected to a moving device (22), the transport device (21) is used to drive the moving device (22) to adjust the horizontal position left and right, and the moving device (22) is used to adjust the vertical position up and down after the horizontal position is adjusted, so as to achieve rapid and accurate adjustment of the axle accessories to a suitable angle; The front end of the moving device (22) is fixedly connected to a movable device (23), and the movable device (23) is used to push the axle accessories placed at the front end forward and send them into the heat treatment furnace body (3), thereby completing the loading of the accessories simply and efficiently by pushing and placing.

2. The heat treatment furnace for processing axle parts according to claim 1, characterized in that: The transport device (21) comprises a first slide rail (211), a first rack (212) is fixedly connected to a groove portion on one side of the first slide rail (211), a first gear (213) is meshedly connected to an outer surface of the first rack (212), a first rotating column (214) is fixedly connected to the top of the first gear (213), and the first rotating column (214) is used to drive the transport device (21) to move horizontally along the first slide rail (211).

3. The heat treatment furnace for processing axle parts according to claim 2, characterized in that: The grooves at both ends of the bottom of the first slide rail (211) are movably connected to first pulleys (215), the tops of the two first pulleys (215) are movably connected to connecting blocks (216), the tops of the two connecting blocks (216) are fixedly connected to support plates (217), the tops of the support plates (217) are connected to a moving device (22), the center of the bottom of the support plate (217) is correspondingly connected to a second pulley (218), and the center of the second pulley (218) is movably connected to a rotating shaft (219).

4. The heat treatment furnace for processing axle parts according to claim 3, characterized in that: The moving device (22) includes a second slide rail (221), a second rack (222) is fixedly connected to the outer side of the second slide rail (221), the outer surface of the second rack (222) is meshedly connected to two second gears (223), the centers of the two second gears (223) are movably connected to a third pulley (224), and the outer surfaces of the two third pulleys (224) are both movably connected to the grooves of the second slide rail (221).

5. The heat treatment furnace for processing axle parts according to claim 4, characterized in that: One end of a top plate (225) is fixedly connected to the top of the second slide rail (221) and the second rack (222), and the other end of the top plate (225) is fixedly connected to a second rotating column (226), and the bottom of the second rotating column (226) is connected to the first rotating column (214), and a rectangular plate (227) is connected through the outer surface of the second rotating column (226), and two rotating blocks (228) are movably connected to the top of the front end of the rectangular plate (227).

6. The heat treatment furnace for processing axle parts according to claim 5, characterized in that: The outer surfaces of the two rotating blocks (228) are movably connected to a bandage (229), the front bottom of the rectangular plate (227) is respectively connected to a motor (2210) and a rotating block (2211), and the tops of the motor (2210) and the rotating block (2211) are respectively connected to the bottoms of the two rotating blocks (228), and the bottom of the rotating block (2211) is fixedly connected to a movable device (23).

7. The heat treatment furnace for processing axle parts according to claim 6, characterized in that: The movable device (23) comprises a groove block (231), a fixed block (232) is fixedly connected to the center of the top of the groove block (231), and the top of the fixed block (232) is fixedly connected to the bottom of the rotating block (2211), two first elliptical blocks (233) are fixedly connected to the groove at one end of the top of the groove block (231), and the hollowed-out parts of the two first elliptical blocks (233) are movably connected to telescopic rods (234), and the two sides of the top of the two telescopic rods (234) are movably connected to triangular blocks (235).

8. The heat treatment furnace for processing axle parts according to claim 7, characterized in that: The bottom ends of the two triangular blocks (235) are fixedly connected to a bracket (236), and the rear end convex portion of the bottom of the bracket (236) is movably connected to two second elliptical blocks (237), and the bottoms of the two second elliptical blocks (237) are fixedly connected to the groove at the other end of the top of the groove block (231), and the front end groove of the bracket (236) is fixedly connected to a placement plate (238).

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