Heat treatment furnace for metal heat treatment

Abstract

The present invention relates to the technical field of heat treatment furnaces, and specifically to a heat treatment furnace for metal heat treatment, comprising a furnace body, support legs fixedly installed at the four corners of the lower end face of the furnace body, a power cord fixedly installed on one side of the outer surface of the furnace body, a cabinet door hinged on the outer front side of the furnace body, and a handle fixedly installed on the front end face of the cabinet door. This solution realizes the rapid fixation and secondary reinforcement of the workpiece by setting a fixing mechanism one and a fixing mechanism two, effectively avoiding the risk of the workpiece being separated from the fixture due to centrifugal force during the heat treatment process, thereby preventing damage to the equipment, not only significantly improving the reliability and safety of the workpiece fixation, but also greatly improving the stability and efficiency of the heat treatment process. The dual protection mechanism of the fixing mechanism can ensure that the workpiece remains stable and motionless throughout the heat treatment process, avoiding equipment damage and production interruption caused by the workpiece falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment furnaces, and more particularly to a heat treatment furnace for metal heat treatment. Background Art

[0002] Metal heat treatment is a process of heating the metal to a certain temperature and then cooling it in a controlled manner in order to change the metal's structure and properties.

[0003] For a small number of metal plates, an energy-saving small electric heating heat treatment furnace will be used. The metal plates are directly placed in the small electric heating heat treatment furnace, and then the small electric heating heat treatment furnace is started to heat the metal plates. Finally, the metal plates are taken out and immersed in water to complete the heat treatment of the metal plates.

[0004] A Chinese patent with the authorization publication number CN220413472U discloses a heat treatment furnace for metals. Through a servo motor, a rotating rod, a gear A, a gear B and a toothed belt, a rotating shaft, a connecting plate and a spiral bar can be driven to rotate, so that the spiral bar drives the rack, the lifting cylinder and the cover plate to rise and fall, and the workpiece can be automatically removed from the interior of the treatment furnace, avoiding burns to the staff caused by manual material removal, thereby improving the safety of the treatment furnace.

[0005] Although this metal heat treatment furnace can automatically remove the workpiece from the interior of the treatment furnace to avoid burns to the staff due to manual material removal, in actual use, the workpiece is fixed in a traditional way, which has a poor fixing effect. Especially when performing heat treatment, the workpiece is at risk of detaching from the fixture under the dual effects of high temperature and centrifugal force. Once the workpiece detaches from the fixture, it may not only cause damage to the equipment and other workpieces, but also greatly reduce the heat treatment effect and seriously affect the product quality. In addition, the detached workpiece may also cause safety accidents and pose a potential threat to the operator. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a heat treatment furnace for metal heat treatment, which can realize rapid fixation of workpieces and convenient disassembly of fixtures.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A heat treatment furnace for metal heat treatment comprises a furnace body, support legs are fixedly installed at the four corners of the lower end surface of the furnace body, a power cord is fixedly installed on one side of the outer surface of the furnace body, a cabinet door is hinged on the outer front side of the furnace body, and a handle is fixedly installed on the front end surface of the cabinet door, an adjusting mechanism is arranged inside the furnace body, a fixing mechanism 1 is arranged inside the adjusting mechanism, a fixing mechanism 2 and a quick disassembly mechanism are arranged inside the fixing mechanism 1, the adjusting mechanism comprises a motor fixedly installed on the lower end surface of the furnace body, a rotating shaft is fixedly installed on the end of the output shaft at the upper end of the motor, a rotating disk is fixedly installed on the upper end of the rotating shaft, a telescopic rod is fixedly installed on the inner upper end surface of the furnace body, a lifting plate is fixedly installed on the lower end of the telescopic rod, a slide groove 1 is provided on the outer surface of the lifting plate, a support rod 1 is slidably connected inside the slide groove 1, a rotating rod is rotatably connected at the lower end of the support rod 1, an outer plum blossom rod is fixedly installed on the outer surface of the rotating rod, and an inner plum blossom sleeve is provided on the outer surface of the outer plum blossom rod.

[0009] Furthermore, a gear is fixedly mounted on the outer surface of the inner plum blossom sleeve, a gear ring is fixedly mounted on the inner wall of the furnace body, the gear is meshed with the gear ring, a support rod 2 is fixedly mounted on the outer surface of the turntable, and the support rod 2 is rotatably connected to the inner plum blossom sleeve.

[0010] Furthermore, the quick disassembly mechanism includes a sleeve arranged on the lower side of the outer plum blossom rod, an internal threaded sleeve is fixedly installed on the upper side of the outer surface of the sleeve, an external threaded groove is opened on the lower side of the outer surface of the internal plum blossom sleeve, and the internal threaded sleeve is spirally connected to the external threaded groove.

[0011] Furthermore, a lifting rod is provided inside the sleeve, a support plate 1 is fixedly installed on the outer surface of the lifting rod, the support plate 1 is slidably connected to the sleeve, a spring 1 is fixedly installed between the support plate 1 and the inner upper end surface of the sleeve, an external thread groove 2 is provided on the upper side of the outer surface of the lifting rod, a thread groove is provided at the lower end of the external plum blossom rod, and the thread groove is spirally connected to the external thread groove 2.

[0012] Furthermore, the fixing mechanism 1 includes a fixing plate arranged at the lower side of the sleeve, a plurality of fixing rods are fixedly installed between the fixing plate and the sleeve, a transmission plate is arranged between the fixing plate and the sleeve, and the transmission plate is fixedly connected to the lifting rod.

[0013] Furthermore, a slot 1 is provided on the outer surface of the transmission plate, a fixed shaft is fixedly installed inside the slot 1, and a slot 2 is provided on the outer surface of the fixed plate, a sliding rod is fixedly installed inside the slot 2.

[0014] Furthermore, an arc-shaped clamp rod is rotatably connected to the outer surface of the fixed shaft, a second slide groove is provided inside the arc-shaped clamp rod, the slide rod is slidably connected inside the second slide groove, and a workpiece is arranged on the lower side of the fixed plate.

[0015] Furthermore, the second fixing mechanism includes a guide groove opened inside the arc-shaped clamping rod, the guide groove is arranged on the lower side of the second slide groove, the inside of the guide groove is slidably connected with a flexible rod, the inside of the second slide groove is slidably connected with an extrusion plate, the extrusion plate is tightly arranged with the sliding rod, and the upper end of the flexible rod extends to the inside of the second slide groove and is fixedly connected to the extrusion plate.

[0016] Furthermore, a fixing plate is provided on the inner side of the arc-shaped clamp rod, the other end of the flexible rod is fixedly connected to the fixing plate, the front end face and the rear end face of the arc-shaped clamp rod are fixedly installed with a supporting plate 2, and a spring 2 is fixedly installed between the supporting plate 2 and the fixing plate.

[0017] Furthermore, the fixing mechanism 1, the fixing mechanism 2, the quick disassembly mechanism, the support rod 1 and the support rod 2 are each provided with a plurality of groups correspondingly and are dispersedly arranged in a ring shape.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution realizes rapid fixation and secondary reinforcement of the workpiece by setting the first fixing mechanism and the second fixing mechanism, effectively avoiding the risk of the workpiece being separated from the fixture due to centrifugal force during the heat treatment process, thereby preventing damage to the equipment. It not only significantly improves the reliability and safety of the workpiece fixation, but also greatly improves the stability and efficiency of the heat treatment process. The dual protection mechanism of the fixing mechanism can ensure that the workpiece remains stable and motionless throughout the heat treatment process, avoiding equipment damage and production interruption caused by the workpiece falling off;

[0020] (2) This scheme not only realizes the linkage transmission between the fixing mechanism 1 and the fixing mechanism 2 by setting the adjustment mechanism, but also enables the workpiece in the fixed state to rotate while revolving, thereby significantly improving the heat treatment effect of the workpiece. It not only optimizes the fixing method of the workpiece, but also ensures that the workpiece can be heated evenly during the heat treatment process through dynamic adjustment, avoiding the problem of local overheating or uneven heating;

[0021] (3) This solution sets up a quick disassembly mechanism so that the fixture can be replaced in a quick disassembly form, which not only greatly improves the replacement efficiency between different fixtures, but also significantly facilitates the daily maintenance of the equipment. The application of the quick disassembly mechanism enables operators to easily complete the loading and unloading of the fixture in a short time without complicated tools or long waiting. This not only saves valuable production time, but also improves the flexibility and convenience of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0025] Figure 4 It is a core schematic diagram of the fixing mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0027] Figure 6 For the present invention Figure 4 sectional view of

[0028] Figure 7 For the present invention Figure 6 The enlarged schematic diagram at C in the middle;

[0029] Figure 8 For the present invention Figure 6 Enlarged schematic diagram at point D in the middle.

[0030] Description of the numbers in the figure:

[0031] 1. Furnace body; 2. Power cord; 3. Support legs; 4. Cabinet door; 5. Handle; 6. Motor; 7. Rotating shaft; 8. Turntable; 9. Telescopic rod; 10. Lifting plate; 11. Slideway 1; 12. Support rod 1; 13. Turntable; 14. Gear ring; 15. Gear; 16. External plum blossom rod; 17. Support rod 2; 18. Internal plum blossom sleeve; 19. Internal thread sleeve; 20. Sleeve; 21. External thread groove 1; 22. Support plate 1; 23. Spring 1; 24. Lifting rod; 25. Threaded groove; 26. External thread groove 2; 27. Fixed plate; 28. Fixed rod; 29. ​​Transmission plate; 30. Notch 1; 31. Fixed shaft; 32. Notch 2; 33. Sliding rod; 34. Arc clamping rod; 35. Sliding groove 2; 36. Workpiece; 37. Guide groove; 38. Flexible rod; 39. Extrusion plate; 40. Fixed plate; 41. Support plate 2; 42. Spring 2. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 8 A heat treatment furnace for metal heat treatment comprises a furnace body 1, support legs 3 are fixedly installed at the four corners of the lower end surface of the furnace body 1, a power cord 2 is fixedly installed on one side of the outer surface of the furnace body 1, a cabinet door 4 is hinged on the front side of the outer surface of the furnace body 1, and a handle 5 is fixedly installed on the front end surface of the cabinet door 4. An adjustment mechanism is arranged inside the furnace body 1, a fixing mechanism 1 is arranged inside the adjustment mechanism, a fixing mechanism 2 and a quick disassembly mechanism are arranged inside the fixing mechanism 1, the adjustment mechanism comprises a motor 6 fixedly installed on the lower end surface of the furnace body 1, a rotating shaft 7 is fixedly installed on the end of the output shaft at the upper end of the motor 6, a turntable 8 is fixedly installed on the upper end of the rotating shaft 7, and a rotating shaft 7 is fixedly installed on the upper end of the rotating shaft 7. A telescopic rod 9 is fixedly installed on the end face, a lifting plate 10 is fixedly installed on the lower end of the telescopic rod 9, a slide groove 11 is opened on the outer surface of the lifting plate 10, a support rod 12 is slidably connected inside the slide groove 11, a rotating rod 13 is rotatably connected to the lower end of the support rod 12, an outer plum blossom rod 16 is fixedly installed on the outer surface of the rotating rod 13, an inner plum blossom sleeve 18 is sleeved on the outer surface of the outer plum blossom rod 16, a gear 15 is fixedly installed on the outer surface of the inner plum blossom sleeve 18, a gear ring 14 is fixedly installed on the inner wall of the furnace body 1, the gear 15 is meshed with the gear ring 14, a support rod 2 17 is fixedly installed on the outer surface of the turntable 8, and the support rod 2 17 is rotatably connected to the inner plum blossom sleeve 18.

[0034] When the workpiece 36 is fixed, the motor 6 can be started so that the output shaft of the motor 6 drives the rotating shaft 7 to rotate, and the rotating shaft 7 will carry the turntable 8 to rotate, and the turntable 8 will drive the workpiece 36 in the fixed state to revolve through the support rod 17, and the gear 15 on the inner plum blossom sleeve 18 is in a meshing state with the gear ring 14. Therefore, the inner plum blossom sleeve 18 will revolve and rotate at the same time under the action of the gear 15 and the gear ring 14, and the inner plum blossom sleeve 18 and the internal threaded sleeve 19 on the sleeve 20 are spirally fixed. Therefore, the sleeve 20 will revolve synchronously and rotate at the same time. The sleeve 20 will then carry the workpiece 36 in the fixed state below to revolve and rotate at the same time. Then the furnace body 1 can be started to heat treat the workpiece 36. The workpiece 36 that revolves and rotates can make the heat treatment of the workpiece 36 uniform, thereby improving the heat treatment effect and quality.

[0035] The quick disassembly mechanism includes a sleeve 20 arranged on the lower side of the outer plum blossom rod 16, an inner threaded sleeve 19 is fixedly installed on the upper side of the outer surface of the sleeve 20, an outer threaded groove 21 is provided on the lower side of the outer surface of the inner plum blossom sleeve 18, the inner threaded sleeve 19 is spirally connected to the outer threaded groove 21, a lifting rod 24 is arranged inside the sleeve 20, a support plate 22 is fixedly installed on the outer surface of the lifting rod 24, the support plate 22 is slidably connected to the sleeve 20, a spring 23 is fixedly installed between the support plate 22 and the inner upper end surface of the sleeve 20, an outer threaded groove 26 is provided on the upper side of the outer surface of the lifting rod 24, a threaded groove 25 is provided at the lower end of the outer plum blossom rod 16, and the threaded groove 25 is spirally connected to the outer threaded groove 26.

[0036] At the same time, the clamp of the present equipment adopts quick-release fixing, and the chuck can be quickly replaced. When installation is required, the internal thread sleeve 19 on the sleeve 20 and the external thread groove 1 21 on the internal plum blossom sleeve 18 can be quickly threaded and fixed by rotating the sleeve 20 clockwise. At the same time, the external thread groove 26 on the lifting rod 24 and the thread groove 25 on the external plum blossom rod 16 are threaded and fixed, so that the adjustment mechanism and the fixing mechanism 1 and the fixing mechanism 2 can be connected by transmission; when disassembly is required, the fixed installation of the chuck can be released by rotating the sleeve 20 counterclockwise.

[0037] The fixing mechanism 1 includes a fixing plate 27 arranged on the lower side of the sleeve 20, a plurality of fixing rods 28 are fixedly installed between the fixing plate 27 and the sleeve 20, a transmission plate 29 is arranged between the fixing plate 27 and the sleeve 20, the transmission plate 29 is fixedly connected to the lifting rod 24, a notch 1 30 is provided on the outer surface of the transmission plate 29, a fixing shaft 31 is fixedly installed inside the notch 1 30, a notch 2 32 is provided on the outer surface of the fixing plate 27, a sliding rod 33 is fixedly installed inside the notch 2 32, an arc-shaped clamping rod 34 is rotatably connected to the outer surface of the fixing shaft 31, a sliding groove 2 35 is provided inside the arc-shaped clamping rod 34, the sliding rod 33 is slidably connected inside the sliding groove 2 35, and a workpiece 36 is arranged on the lower side of the fixing plate 27.

[0038] The second fixing mechanism includes a guide groove 37 opened inside the arc-shaped clamping rod 34, and the guide groove 37 is arranged on the lower side of the second slide groove 35. The inside of the guide groove 37 is slidably connected with a flexible rod 38, and the inside of the second slide groove 35 is slidably connected with an extrusion plate 39. The extrusion plate 39 is tightly arranged with the slide rod 33. The upper end of the flexible rod 38 extends to the inside of the second slide groove 35 and is fixedly connected to the extrusion plate 39. A fixing plate 40 is arranged on the inner side of the arc-shaped clamping rod 34, and the other end of the flexible rod 38 is fixedly connected to the fixing plate 40. The front end face and the rear end face of the arc-shaped clamping rod 34 are fixedly installed with a second support plate 41, and a second spring 42 is fixedly installed between the second support plate 41 and the fixing plate 40.

[0039] The fixing mechanism 1, the fixing mechanism 2, the quick disassembly mechanism, the support rod 1 12 and the support rod 2 17 are all provided in multiple groups correspondingly and are dispersedly arranged in a ring shape.

[0040] The existing heat treatment equipment has a poor fixing effect on the workpiece 36, especially when the T-shaped workpiece 36 is fixed and heat treated. During the heat treatment, the workpiece 36 is at risk of detaching from the fixture under the dual effects of high temperature and centrifugal force. Once the workpiece 36 detaches from the fixture, it may not only cause damage to the equipment and other workpieces 36, but also greatly reduce the heat treatment effect, seriously affecting product quality. In addition, the detached workpiece 36 may also cause safety accidents and pose a potential threat to operators. Therefore, this scheme realizes rapid fixation and secondary reinforcement of the workpiece 36 by setting a fixing mechanism one and a fixing mechanism two, effectively avoiding the risk of the workpiece 36 detaching from the fixture due to centrifugal force during the heat treatment process, thereby preventing damage to the equipment, not only significantly improving the reliability and safety of the workpiece 36 fixation, but also greatly improving the stability and efficiency of the heat treatment process. The dual protection mechanism of the fixing mechanism can ensure that the workpiece 36 remains stable and motionless throughout the heat treatment process, avoiding equipment damage and production interruption caused by the workpiece 36 falling off.

[0041] First, the cabinet door 4 is opened by the handle 5, and the workpiece 36 is placed on the corresponding clamping assembly in turn, and then the telescopic rod 9 is started to drive the lifting plate 10 to rise. The lifting plate 10 is synchronously lifted by the support rod 12 carrying the rotating rod 13 and the outer plum blossom rod 16. The threaded groove 25 at the lower end of the outer plum blossom rod 16 is spirally fixedly connected with the outer threaded groove 26 on the lifting rod 24, so the lifting rod 24 rises synchronously, and the lifting rod 24 rises to carry the transmission plate 29 to rise, and the transmission plate 29 rises to carry the fixed shaft inside the notch 30 The arc clamping rod 34 is driven to rise and deflect around the fixed shaft 31. When the arc clamping rod 34 rises, the slide bar 33 in the second notch 32 slides in the second slide groove 35 on the arc clamping rod 34. The fixed shaft 31 and the slide bar 33 cooperate with each other, so that the lower end of the arc clamping rod 34 contracts inwards, and the distance between the arc clamping rod 34 and the fixed plate 27 is reduced. The multiple sets of arc clamping rods 34 cooperate with each other, so as to preliminarily fix the workpiece 36.

[0042] Secondly, when the slide rod 33 slides inside the second slide groove 35, the flexible rod 38 will be squeezed by the squeezing plate 39, so that the lower end of the flexible rod 38 extends from the inside of the guide groove 37, and the fixed plate 40 is tightly attached to the workpiece 36. Similarly, multiple groups of fixed plates 40 cooperate with each other to complete the secondary reinforcement of the workpiece 36, and the setting of the second spring 42 can make the fixed plate 40 retract. When the telescopic rod 9 rises to release the fixation of the workpiece 36, the second spring 42 retracts the second fixed plate 40, and the secondary reinforcement of the workpiece 36 can be released.

[0043] Directions:

[0044] First, the cabinet door 4 is opened by the handle 5, and the workpiece 36 is placed on the corresponding clamping assembly in turn, and then the telescopic rod 9 is started to drive the lifting plate 10 to rise. The lifting plate 10 is synchronously lifted by the support rod 12 carrying the rotating rod 13 and the outer plum blossom rod 16. The threaded groove 25 at the lower end of the outer plum blossom rod 16 is spirally fixedly connected with the outer threaded groove 26 on the lifting rod 24, so the lifting rod 24 rises synchronously, and the lifting rod 24 rises to carry the transmission plate 29 to rise, and the transmission plate 29 rises to carry the fixed shaft inside the notch 30 The arc clamping rod 34 is driven to rise and deflect around the fixed shaft 31. When the arc clamping rod 34 rises, the slide bar 33 in the second notch 32 slides in the second slide groove 35 on the arc clamping rod 34. The fixed shaft 31 and the slide bar 33 cooperate with each other, so that the lower end of the arc clamping rod 34 contracts inwards, and the distance between the arc clamping rod 34 and the fixed plate 27 is reduced. The multiple sets of arc clamping rods 34 cooperate with each other, so as to preliminarily fix the workpiece 36.

[0045] Secondly, when the slide bar 33 slides inside the second slide groove 35, the flexible rod 38 will be squeezed by the squeezing plate 39, so that the lower end of the flexible rod 38 extends out from the inside of the guide groove 37, and the fixing plate 40 is tightly attached to the workpiece 36. Similarly, multiple groups of fixing plates 40 cooperate with each other to complete the secondary reinforcement of the workpiece 36, and the setting of the second spring 42 can make the fixing plate 40 retract. When the telescopic rod 9 rises to release the fixation of the workpiece 36, the second spring 42 retracts the second fixing plate 40, and the secondary reinforcement of the workpiece 36 can be released.

[0046] At the same time, the clamp of the device adopts quick-release fixing, and the chuck can be quickly replaced. When it is necessary to install, the internal thread sleeve 19 on the sleeve 20 and the external thread groove 1 21 on the internal plum blossom sleeve 18 can be quickly threaded and fixed by rotating the sleeve 20 clockwise. At the same time, the external thread groove 26 on the lifting rod 24 and the thread groove 25 on the external plum blossom rod 16 are threaded and fixed, so that the adjustment mechanism and the fixing mechanism 1 and the fixing mechanism 2 can be connected by transmission; when it is necessary to disassemble, the fixed installation of the chuck can be released by rotating the sleeve 20 counterclockwise;

[0047] When the workpiece 36 is fixed, the motor 6 can be started so that the output shaft of the motor 6 drives the rotating shaft 7 to rotate, and the rotating shaft 7 will carry the turntable 8 to rotate, and the turntable 8 will drive the workpiece 36 in the fixed state to revolve through the support rod 17, and the gear 15 on the inner plum blossom sleeve 18 is in a meshing state with the gear ring 14. Therefore, the inner plum blossom sleeve 18 will revolve and rotate at the same time under the action of the gear 15 and the gear ring 14, and the inner plum blossom sleeve 18 and the internal threaded sleeve 19 on the sleeve 20 are spirally fixed. Therefore, the sleeve 20 will revolve synchronously and rotate at the same time. The sleeve 20 will then carry the workpiece 36 in the fixed state below to revolve and rotate at the same time. Then the furnace body 1 can be started to heat treat the workpiece 36. The workpiece 36 that revolves and rotates can make the heat treatment of the workpiece 36 uniform, thereby improving the heat treatment effect and quality.

[0048] The above is only a preferred specific implementation of the present invention; however, 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 solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heat treatment furnace for metal heat treatment, comprising a furnace body (1), support legs (3) are fixedly mounted at four corners of the lower end surface of the furnace body (1), a power cord (2) is fixedly mounted on one side of the outer surface of the furnace body (1), a cabinet door (4) is hingedly connected to the front side of the outer surface of the furnace body (1), and a handle (5) is fixedly mounted on the front end surface of the cabinet door (4), characterized in that: The furnace body (1) is provided with an adjustment mechanism inside, a fixing mechanism 1 is provided inside the adjustment mechanism, a fixing mechanism 2 and a quick disassembly mechanism are provided inside the fixing mechanism 1, the adjustment mechanism comprises a motor (6) fixedly mounted on the lower end surface inside the furnace body (1), a rotating shaft (7) is fixedly mounted on the end of the output shaft at the upper end of the motor (6), a rotating disk (8) is fixedly mounted on the upper end of the rotating shaft (7), a telescopic rod (9) is fixedly mounted on the upper end surface inside the furnace body (1), a lifting plate (10) is fixedly mounted on the lower end of the telescopic rod (9), a sliding groove 1 (11) is provided on the outer surface of the lifting plate (10), a support rod 1 (12) is slidably connected to the inside of the sliding groove 1 (11), and the support rod 1 (12) is fixedly mounted on the upper end surface of the output shaft at the upper end of the motor (6). The lower end of the rotating disk (8) is rotatably connected to a rotating rod (13), an outer plum blossom rod (16) is fixedly mounted on the outer surface of the rotating rod (13), an inner plum blossom sleeve (18) is sleeved on the outer surface of the outer plum blossom rod (16), a gear (15) is fixedly mounted on the outer surface of the inner plum blossom sleeve (18), a gear ring (14) is fixedly mounted on the inner wall of the furnace body (1), the gear (15) meshes with the gear ring (14), a supporting rod second (17) is fixedly mounted on the outer surface of the rotating disk (8), the supporting rod second (17) is rotatably connected to the inner plum blossom sleeve (18), the fixing mechanism one comprises a fixing disk (27) arranged on the lower side of the sleeve (20), a plurality of fixing rods (28) are fixedly mounted between the fixing disk (27) and the sleeve (20), A transmission plate (29) is arranged between the fixed plate (27) and the sleeve (20), and the transmission plate (29) is fixedly connected to the lifting rod (24). A notch 1 (30) is provided on the outer surface of the transmission plate (29), and a fixed shaft (31) is fixedly installed inside the notch 1 (30). A notch 2 (32) is provided on the outer surface of the fixed plate (27), and a sliding rod (33) is fixedly installed inside the notch 2 (32). An arc-shaped clamping rod (34) is rotatably connected to the outer surface of the fixed shaft (31), and a sliding groove 2 (35) is provided inside the arc-shaped clamping rod (34), and the sliding rod (33) is slidably connected inside the sliding groove 2 (35). A workpiece (36) is arranged on the lower side of the fixed plate (27). The second fixing mechanism comprises a guide groove (37) provided inside the arc-shaped clamping rod (34), the guide groove (37) being arranged at the lower side of the second slide groove (35), the guide groove (37) being slidably connected to the inside of a flexible rod (38), the second slide groove (35) being slidably connected to the inside of an extrusion plate (39), the extrusion plate (39) being closely arranged to the slide rod (33), the upper end of the flexible rod (38) extending to the inside of the second slide groove (35) and being fixedly connected to the extrusion plate (39), the inner side of the arc-shaped clamping rod (34) being provided with a fixing plate (40), the other end of the flexible rod (38) being fixedly connected to the fixing plate (40), the front end face and the rear end face of the arc-shaped clamping rod (34) being fixedly mounted with a second support plate (41),A second spring (42) is fixedly installed between the second support plate (41) and the fixing plate (40).

2. A heat treatment furnace for metal heat treatment according to claim 1, characterized in that: The quick disassembly mechanism comprises a sleeve (20) arranged at the lower side of the outer plum blossom rod (16); an inner thread sleeve (19) is fixedly mounted on the upper side of the outer surface of the sleeve (20); an outer thread groove (21) is formed on the lower side of the outer surface of the inner plum blossom sleeve (18); and the inner thread sleeve (19) is connected to the outer thread groove (21) in a spiral transmission manner.

3. A heat treatment furnace for metal heat treatment according to claim 2, characterized in that: A lifting rod (24) is arranged inside the sleeve (20), a support plate (22) is fixedly mounted on the outer surface of the lifting rod (24), the support plate (22) is slidably connected to the sleeve (20), a spring (23) is fixedly mounted between the support plate (22) and the inner upper end surface of the sleeve (20), an outer thread groove (26) is provided on the upper side of the outer surface of the lifting rod (24), a thread groove (25) is provided at the lower end of the outer plum blossom rod (16), and the thread groove (25) is connected to the outer thread groove (26) in a spiral transmission manner.

4. A heat treatment furnace for metal heat treatment according to claim 3, characterized in that: The fixing mechanism 1, the fixing mechanism 2, the quick disassembly mechanism, the support rod 1 (12) and the support rod 2 (17) are each provided in a plurality of groups and are dispersedly arranged in a ring shape.

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