Heat treatment tool for carburizing and quenching

Abstract

The invention belongs to the technical field of metal carburizing machining, and particularly relates to a carburizing and quenching heat treatment tool which comprises a tool body and a gas replacement assembly arranged on the tool body and further comprises an atomization type carburizing mechanism and a workpiece pretreatment mechanism. The workpiece pretreatment mechanism is arranged on the tool main body; the atomization type carburizing mechanism comprises a mixing assembly, a carbon source atomizing assembly and a carbon source circulating assembly, the mixing assembly is arranged on the atomization type carburizing mechanism, the carbon source atomizing assembly is arranged on the mixing assembly, and the carbon source circulating assembly is arranged on the mixing assembly; through the arrangement of the pretreatment mechanism, a flow channel of a carburizing atmosphere can be formed, activated carbon atoms can be more easily diffused to a complex structure area, carbon flow can be directionally guided, and the carburizing efficiency of a cylindrical workpiece area is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of metal carburizing processing, and specifically refers to a heat treatment tool for carburizing and quenching. Background Art

[0002] Carburizing is an important heat treatment process that aims to increase the hardness and wear resistance of steel workpieces by increasing the carbon content in the surface layer while maintaining the toughness and strength of the core. In this process, the workpiece is placed in a carbon-rich medium to allow carbon atoms to penetrate into the surface layer of the workpiece at high temperature. The carburized workpiece is then quenched to form a gradient structure with a high hardness surface and a low hardness core to meet different mechanical performance requirements.

[0003] However, conventional carburizing furnaces have significant deficiencies when processing workpieces. Due to the uneven distribution of the atmosphere in the carburizing furnace, the depth and carbon concentration of the carburized layer in different parts of the workpiece vary, which is the so-called "carburizing layer difference". This uneven carburizing not only affects the overall performance of the workpiece, but may also cause local failure of the workpiece during subsequent use. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a heat treatment tool for carburizing and quenching.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a heat treatment tool for carburizing and quenching, including a tool body, and a gas replacement component arranged on the tool body, and also including an atomizing carburizing mechanism and a workpiece pretreatment mechanism, the atomizing carburizing mechanism is arranged on the tool body, and the workpiece pretreatment mechanism is arranged on the tool body; the atomizing carburizing mechanism includes a mixing component, a carbon source atomizing component and a carbon source circulation component, the mixing component is arranged on the atomizing carburizing mechanism, the carbon source atomizing component is arranged on the mixing component, and the carbon source circulation component is arranged on the mixing component.

[0006] Furthermore, the tooling body includes a processing table, a solution chamber is provided in the processing table, a quenching liquid is provided in the solution chamber, a support column is provided on the processing table, a support block is provided on the support column, a first cylinder is provided at the upper end of the inner wall of the processing table, a sealing plate is provided at the output end of the first cylinder, a carburizing chamber is provided on the processing table, and a sealing door is provided on the front opening of the carburizing chamber.

[0007] Further, the mixing assembly includes a second cylinder, a cylinder seat of the second cylinder is arranged at the lower end of the support block, a lifting block is provided at the output end of the second cylinder, the lifting block is arranged in the carburizing chamber, a first motor is provided at the inner bottom end of the lifting block, a first bevel gear is provided at the output end of the first motor, a driving tube is rotatably provided at the lower end of the lifting block, a second bevel gear is sleeved on the driving tube, the first bevel gear and the second bevel gear are meshed and rotatably connected, a sealing ring is provided at the upper end of the carburizing chamber, and the sealing ring is slidably sleeved at the output end of the second cylinder.

[0008] Furthermore, the carbon source atomization assembly includes an atomization chamber, which is arranged in a lifting block. A carburizing agent storage chamber is provided at the top of the interior of the atomization chamber. The lower end of the carburizing agent storage chamber is connected to a drip tube. A first electronic valve is provided on the drip tube. A liquid collecting chamber is provided at the bottom of the interior of the lifting block. An ultrasonic atomization sheet is provided in the liquid collecting chamber.

[0009] Furthermore, the carbon source circulation component includes an output pipe, one end of the output pipe is connected to the upper end of the outer wall of the atomization chamber, the other end of the output pipe is connected to the fixed port of the rotary joint, the rotary interface of the rotary joint is connected to the upper end of the driving pipe, the lower end of the other outer wall of the atomization chamber is connected to one end of the first air supply pipe, the other end of the first air supply pipe is connected to the output end of the circulating air pump, the exhaust pipe of the circulating air pump is connected to one end of the first exhaust pipe, the other end of the first exhaust pipe is arranged on the outside of the lifting block, and a heating element is arranged on the upper end of the inner wall of the carburizing chamber.

[0010] Furthermore, the workpiece pretreatment mechanism comprises a workpiece fixing assembly and a workpiece surface drilling assembly, wherein the workpiece fixing assembly is arranged on the driving tube, and the workpiece surface drilling assembly is arranged on the inner side wall of the carburizing chamber.

[0011] Furthermore, the workpiece fixing assembly includes a turntable and a slider, the turntable is sleeved on the lower end of the side wall of the driving tube, the lower end of the turntable is provided with a connecting rod, the lower end of the connecting rod is provided with a bottom plate, the bottom plate is provided with a water leakage hole, the bottom plate is provided with a lead screw, the lead screw and the bottom plate are threadedly connected, the lower end of the lead screw is provided with a turning handle, the upper end of the lead screw is rotatably provided with a second fixed groove, the inner top end of the turntable is provided with a second motor, the output end of the second motor is provided with a first fixed groove, the upper end of the turntable is provided with an annular slide groove, the lower end of the lifting block is provided with an annular slide groove, and the slider is slidably arranged in the annular slide groove.

[0012] Furthermore, the workpiece surface drilling assembly includes a third cylinder and a second drill bit, the cylinder seat of the third cylinder is arranged on the inner wall of the carburizing chamber, the output end of the third cylinder is provided with an equipment chamber, the outer wall of the equipment chamber is provided with a third motor, the output end of the third motor is installed with a first drill bit, the first drill bit is sleeved with a fourth gear, one end of the second drill bit is rotatably arranged on the inner wall of the equipment chamber, the second drill bit is sleeved with a third gear, and the third gear and the fourth gear are meshed and rotatably connected.

[0013] Furthermore, the gas replacement assembly includes a vacuum pump, which is arranged on the outer wall of the carburizing chamber. A second vacuum pipe is installed at the vacuum end of the vacuum pump, and a second electronic valve is provided on the second vacuum pipe. The second vacuum pipe is arranged in the carburizing chamber. An argon storage tank is provided on the processing table, and one end of a second gas supply pipe is installed at the output end of the argon storage tank. A third electronic valve is provided on the second gas supply pipe, and one end of the second gas supply pipe is arranged in the carburizing chamber.

[0014] Furthermore, a heat insulation layer is provided on the third motor.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: (1) The setting of the workpiece pretreatment mechanism can form a flow channel for the carburizing atmosphere, making it easier for active carbon atoms to diffuse into complex structural areas.

[0016] (2) The setting of the workpiece pretreatment mechanism can guide the carbon flow in a directional manner and improve the carburizing efficiency of the cylindrical workpiece area.

[0017] (3) The setting of atomized carburizing mechanism. After the liquid carburizing agent is atomized, its surface area is greatly increased, and the contact opportunities with the workpiece are increased, thereby increasing the carburizing speed.

[0018] (4) The setting of the atomized carburizing mechanism helps to reduce production costs by reducing the waste of conductive slurry and improving its utilization rate.

[0019] (5) The setting of the atomized carburizing mechanism enables the atomized carburizing agent to be more evenly distributed in the heating chamber, reducing the risk of uneven carburizing and ensuring that all parts of the workpiece can obtain the required carburized layer.

[0020] (6) The setting of the atomized carburizing mechanism and the use of atomized carburizing agent reduce the waste of carburizing agent and improve the utilization rate of carburizing agent.

[0021] (7) By replacing the air in the carburizing chamber with argon, the oxidation reaction between the workpiece and the oxygen in the air during the carburizing process can be effectively avoided, thereby ensuring the carburizing quality.

[0022] (8) The air contains moisture, oxygen and other impurities, which may have an adverse effect on the carburizing process. By replacing the air with argon, the interference of these impurities on the carburizing process can be reduced, thereby improving the purity and quality of carburizing.

[0023] (9) The inert properties of argon enable the carburizing process to be carried out in a more stable atmosphere, which helps to improve the carburizing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 This is a main body diagram of a heat treatment tool for carburizing and quenching of the present invention; Figure 2 This is a schematic diagram of a heat treatment tool structure for carburizing and quenching of the present invention; Figure 3 It is a schematic diagram of the structure of the workpiece surface drilling component; Figure 4 It is a schematic diagram of the internal structure of the lifting block; Figure 5 It is a schematic diagram of the structure of the workpiece surface drilling component; Figure 6 It is the top view of the base plate; Figure 7 for Figure 2 A partial enlarged view of part A; Figure 8 for Figure 2 A partial enlarged view of part B; Fig. 9 for Figure 2 A partial enlarged view of part C in the middle.

[0026] Among them, 1. tooling body, 2. atomization carburizing mechanism, 3. workpiece pretreatment mechanism, 4. gas replacement component, 5. processing table, 6. support column, 7. support block, 8. carburizing chamber, 9. solution chamber, 10. quenching liquid, 11. sealing plate, 12. first cylinder, 13. mixing component, 14. carbon source atomization component, 15. carbon source circulation component, 16. second cylinder, 17. lifting block, 18. first motor, 19. first bevel gear, 20. second bevel gear, 21. driving pipe, 22. sealing ring, 23. atomization chamber, 24. carburizing agent storage chamber, 25. drip tube, 26. first electronic valve, 27. ultrasonic atomization sheet, 28. liquid collecting chamber, 29. output pipe, 30. rotary joint, 31. circulating air pump, 32. The first exhaust pipe, 33. The first air supply pipe, 34. The heating element, 35. The workpiece fixing assembly, 36. The workpiece surface drilling assembly, 37. The turntable, 38. The connecting rod, 39. The bottom plate, 40. The second motor, 41. The first fixing groove, 42. The second fixing groove, 43. The lead screw, 44. The handle, 45. The third cylinder, 46. The equipment cavity, 47. The third motor, 48. The first drill bit, 49. The second drill bit, 50. The third gear, 51. The fourth gear, 52. The vacuum pump, 53. The argon storage tank, 54. The second exhaust pipe, 55. The second air supply pipe, 56. The annular slide groove, 57. The slider, 58. The water leakage hole, 59. The second electronic valve, 60. The third electronic valve, 61. The thermal insulation layer, 62. The sealing door. DETAILED DESCRIPTION

[0027] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0028] like Figure 1-Figure 9 As shown, the present invention proposes a heat treatment tool for carburizing and quenching, including a tool body 1, and a gas replacement component 4 arranged on the tool body 1, and also includes an atomized carburizing mechanism 2 and a workpiece pretreatment mechanism 3, the atomized carburizing mechanism 2 is arranged on the tool body 1, and the workpiece pretreatment mechanism 3 is arranged on the tool body 1.

[0029] The tooling body 1 includes a processing table 5, a support column 6, a support block 7, a carburizing chamber 8, a solution chamber 9, a quenching liquid 10, a sealing plate 11, a first cylinder 12 and a sealing door 62. The processing table 5 is provided with a solution chamber 9, and the solution chamber 9 is provided with a quenching liquid 10. The processing table 5 is provided with a support column 6, and the support column 6 is provided with a support block 7. The upper end of the inner side wall of the processing table 5 is provided with a first cylinder 12, and the output end of the first cylinder 12 is provided with a sealing plate 11. The processing table 5 is provided with a carburizing chamber 8, and the front side of the carburizing chamber 8 is opened and closed with a sealing door 62.

[0030] The atomized carburizing mechanism 2 includes a mixing component 13 , a carbon source atomizing component 14 and a carbon source circulation component 15 . The mixing component 13 is arranged on the atomized carburizing mechanism 2 , the carbon source atomizing component 14 is arranged on the mixing component 13 , and the carbon source circulation component 15 is arranged on the mixing component 13 .

[0031] The mixing assembly 13 includes a second cylinder 16, a lifting block 17, a first motor 18, a first bevel gear 19, a second bevel gear 20, a driving tube 21 and a sealing ring 22. The cylinder seat of the second cylinder 16 is arranged at the lower end of the support block 7. The output end of the second cylinder 16 is provided with a lifting block 17. The lifting block 17 is arranged in the carburizing chamber 8. The inner bottom end of the lifting block 17 is provided with a first motor 18. The output end of the first motor 18 is provided with a first bevel gear 19. The lower end of the lifting block 17 is rotatably provided with a driving tube 21. The second bevel gear 20 is sleeved on the driving tube 21. The first bevel gear 19 and the second bevel gear 20 are meshed and rotatably connected. The upper end of the carburizing chamber 8 is provided with a sealing ring 22, and the sealing ring 22 is slidably sleeved on the output end of the second cylinder 16.

[0032] The carbon source atomization assembly 14 includes an atomization chamber 23, a carburizing agent storage chamber 24, a dripping tube 25, a first electronic valve 26, an ultrasonic atomization sheet 27 and a liquid collecting chamber 28. The atomization chamber 23 is arranged in the lifting block 17. The top of the atomization chamber 23 is provided with a carburizing agent storage chamber 24. The lower end of the carburizing agent storage chamber 24 is connected to the dripping tube 25. The dripping tube 25 is provided with a first electronic valve 26. The bottom end of the lifting block 17 is provided with a liquid collecting chamber 28. The ultrasonic atomization sheet 27 is provided in the liquid collecting chamber 28.

[0033] The carbon source circulation assembly 15 includes an output pipe 29, a rotary joint 30, a circulating air pump 31, a first exhaust pipe 32, a first air supply pipe 33 and a heating element 34. One end of the output pipe 29 is connected to the upper end of the outer wall of the atomization chamber 23, and the other end of the output pipe 29 is connected to the fixed port of the rotary joint 30. The rotating interface of the rotary joint 30 is connected to the upper end of the driving pipe 21. The lower end of the other outer wall of the atomization chamber 23 is connected to one end of the first air supply pipe 33. The other end of the first air supply pipe 33 is connected to the output end of the circulating air pump 31. The exhaust pipe of the circulating air pump 31 is connected to one end of the first exhaust pipe 32. The other end of the first exhaust pipe 32 is arranged on the outside of the lifting block 17. A heating element 34 is arranged on the upper end of the inner wall of the carburizing chamber 8.

[0034] The workpiece pretreatment mechanism 3 includes a workpiece fixing assembly 35 and a workpiece surface drilling assembly 36 . The workpiece fixing assembly 35 is arranged on the driving tube 21 , and the workpiece surface drilling assembly 36 is arranged on the inner side wall of the carburizing chamber 8 .

[0035] The workpiece fixing assembly 35 includes a turntable 37, a connecting rod 38, a base plate 39, a second motor 40, a first fixed groove 41, a second fixed groove 42, a lead screw 43, a turning handle 44, an annular slide groove 56, a slider 57 and a water leakage hole 58. The turntable 37 is sleeved on the lower end of the side wall of the driving tube 21. The lower end of the turntable 37 is provided with a connecting rod 38, the lower end of the connecting rod 38 is provided with a base plate 39, the base plate 39 is provided with a water leakage hole 58, the base plate 39 is provided with a lead screw 43, the lead screw 43 and the base plate 39 are threadedly connected, the lower end of the lead screw 43 is provided with a turning handle 44, the upper end of the lead screw 43 is rotatably provided with a second fixed groove 42, the inner top end of the turntable 37 is provided with a second motor 40, the output end of the second motor 40 is provided with a first fixed groove 41, the upper end of the turntable 37 is provided with an annular slide groove 56, the lower end of the lifting block 17 is provided with an annular slide groove 56, and the slider 57 is slidably arranged in the annular slide groove 56.

[0036] The workpiece surface drilling assembly 36 includes a third cylinder 45, an equipment cavity 46, a third motor 47, a first drill bit 48, a second drill bit 49, a third gear 50 and a fourth gear 51. The cylinder seat of the third cylinder 45 is arranged on the inner wall of the carburizing cavity 8, the output end of the third cylinder 45 is provided with an equipment cavity 46, the outer wall of the equipment cavity 46 is provided with a third motor 47, the output end of the third motor 47 is installed with a first drill bit 48, the first drill bit 48 is sleeved with the fourth gear 51, one end of the second drill bit 49 is rotatably arranged on the inner wall of the equipment cavity 46, the second drill bit 49 is sleeved with the third gear 50, and the third gear 50 and the fourth gear 51 are meshed and rotatably connected.

[0037] The gas replacement assembly 4 includes a vacuum pump 52, an argon storage tank 53, a second exhaust pipe 54, a second gas supply pipe 55, a second electronic valve 59 and a third electronic valve 60. The vacuum pump 52 is arranged on the outer wall of the carburizing chamber 8. The exhaust end of the vacuum pump 52 is installed with the second exhaust pipe 54, and the second exhaust pipe 54 is provided with a second electronic valve 59. The second exhaust pipe 54 is arranged in the carburizing chamber 8. An argon storage tank 53 is provided on the processing table 5. One end of the second gas supply pipe 55 is installed at the output end of the argon storage tank 53. The second gas supply pipe 55 is provided with a third electronic valve 60. One end of the second gas supply pipe 55 is arranged in the carburizing chamber 8.

[0038] A heat insulating layer 61 is provided on the third motor 47 .

[0039] When in use, first open the sealing door 62, place the cylindrical workpiece to be processed on the second fixed groove 42, and turn the handle 44. The rotation of the handle 44 drives the lead screw 43 to move upward, and the upper end of the cylindrical workpiece is pushed into the first fixed groove 41. The output end of the first motor 18 rotates to drive the first bevel gear 19 to rotate, the rotation of the first bevel gear 19 drives the second bevel gear 20 to rotate, the rotation of the second bevel gear 20 drives the driving tube 21 to rotate, the rotation of the driving tube 21 drives the turntable 37 to rotate, so that the side wall of the cylindrical workpiece is aligned with the first drill bit 48 and the second drill bit 49, the output end of the third motor 47 rotates to drive the first drill bit 48 to rotate, the rotation of the first drill bit 48 drives the fourth gear 51 to rotate, the rotation of the fourth gear 51 drives the third gear 50 to rotate, and the third gear 51 drives the third gear 50 to rotate. 0 rotates to drive the second drill 49 to rotate, and the output end of the third cylinder 45 moves to drive the equipment chamber 46 to move, and the side wall of the cylindrical workpiece is punched by the first drill 48 and the second drill 49. After the output end of the third cylinder 45 is reset, the cylindrical workpiece is driven to rotate by the output end of the second motor 40, and the output end of the third cylinder 45 moves again to punch other side walls of the cylindrical workpiece, which can form a flow channel for carburizing atmosphere, so that the active carbon atoms can be more easily diffused to the complex structure area. After the opening is completed, the output end of the third cylinder 45 is reset, and then the sealing door 62 is closed, the second electronic valve 59 is opened, and the vacuum pump 52 is started to extract the air in the carburizing chamber 8, and then the second electronic valve 59 is closed, and the third electronic valve 60 is opened, so that the compressed argon gas storage tank 53 The inner argon gas enters the carburizing chamber 8, and then the third electronic valve 60 is closed, and the first electronic valve 26, the ultrasonic atomizing sheet 27 and the circulating air pump 31 are opened. The carburizing agent in the carburizing agent storage chamber 24 drips onto the ultrasonic atomizing sheet 27 through the dropper 25, and the airflow generated by the circulating air pump 31 after being atomized by the ultrasonic atomizing sheet 27 passes through the output pipe 29, the rotary joint 30, and the driving pipe 21, and then enters the carburizing chamber 8, and then enters the atomizing chamber 23 through the first exhaust pipe 32, until the carburizing chamber 8 is filled with atomized carburizing agent. At the same time, the output end of the first motor 18 rotates to drive the first bevel gear 19 to rotate, the first bevel gear 19 rotates to drive the second bevel gear 20 to rotate, the second bevel gear 20 rotates to drive the driving pipe 21, and the driving pipe 21 rotates The rotation of the turntable 37 drives the cylindrical workpiece to revolve around the turntable 37 as the center of the circle. The rotation of the second motor 40 drives the first fixed groove 41 to rotate. The rotation of the first fixed groove 41 drives the cylindrical workpiece to rotate, so as to increase the contact area between the carburizing agent and the cylindrical workpiece. The heating element 34 is started, and the ultrasonic atomizing sheet 27 and the first electronic valve 26 are closed to heat the carburizing chamber 8. The hot air flow is annular in the carburizing chamber 8 through the circulating air pump 31 to perform carburizing on the cylindrical workpiece. After the heating is completed, the output end of the first cylinder 12 moves, the sealing plate 11 moves, and the output end of the second cylinder 16 moves to drive the lifting block 17 to move downward. The lifting block 17 moves downward to drive the turntable 37 to move downward. The turntable 37 moves downward to drive the cylindrical workpiece downward.After the quenching is completed, the cylindrical workpiece is taken out. The above is the overall working process of the present invention. The steps can be repeated next time.

[0040] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat treatment tool for carburizing and quenching, comprising a tool body (1), and a gas displacement assembly (4) arranged on the tool body (1), characterized in that: The invention also comprises an atomized carburizing mechanism (2) and a workpiece pretreatment mechanism (3), wherein the atomized carburizing mechanism (2) is arranged on the tool body (1), and the workpiece pretreatment mechanism (3) is arranged on the tool body (1); the atomized carburizing mechanism (2) comprises a mixing component (13), a carbon source atomizing component (14) and a carbon source circulation component (15), wherein the mixing component (13) is arranged on the atomized carburizing mechanism (2), the carbon source atomizing component (14) is arranged on the mixing component (13), and the carbon source circulation component (15) is arranged on the mixing component (13).

2. A carburizing and quenching heat treatment tool according to claim 1, characterized in that: The tooling body (1) comprises a processing table (5), a solution chamber (9) is provided in the processing table (5), a quenching liquid (10) is provided in the solution chamber (9), a support column (6) is provided on the processing table (5), a support block (7) is provided on the support column (6), a first cylinder (12) is provided at the upper end of the inner side wall of the processing table (5), a sealing plate (11) is provided at the output end of the first cylinder (12), a carburizing chamber (8) is provided on the processing table (5), and a sealing door (62) is provided at the front side of the carburizing chamber (8).

3. A carburizing and quenching heat treatment tool according to claim 2, characterized in that: The mixing assembly (13) comprises a second cylinder (16), the cylinder seat of the second cylinder (16) is arranged at the lower end of the support block (7), the output end of the second cylinder (16) is provided with a lifting block (17), the lifting block (17) is arranged in the carburizing chamber (8), the inner bottom end of the lifting block (17) is provided with a first motor (18), the output end of the first motor (18) is provided with a first bevel gear (19), the lower end of the lifting block (17) is rotatably provided with a driving tube (21), the driving tube (21) is sleeved with a second bevel gear (20), the first bevel gear (19) and the second bevel gear (20) are meshed and rotatably connected, and the upper end of the carburizing chamber (8) is provided with a sealing ring (22), the sealing ring (22) is slidably sleeved on the output end of the second cylinder (16).

4. A carburizing and quenching heat treatment tool according to claim 3, characterized in that: The carbon source atomization assembly (14) comprises an atomization chamber (23), the atomization chamber (23) is arranged inside a lifting block (17), a carburizing agent storage chamber (24) is arranged at the top end of the atomization chamber (23), the lower end of the carburizing agent storage chamber (24) is connected to a dripping tube (25), a first electronic valve (26) is arranged on the dripping tube (25), a liquid collecting chamber (28) is arranged at the bottom end of the lifting block (17), and an ultrasonic atomization sheet (27) is arranged in the liquid collecting chamber (28).

5. A carburizing and quenching heat treatment tool according to claim 4, characterized in that: The carbon source circulation component (15) comprises an output pipe (29), one end of which is connected to the upper end of the outer wall of the atomizing chamber (23), the other end of which is connected to the fixed port of the rotary joint (30), the rotary interface of which is connected to the upper end of the driving pipe (21), the lower end of the other outer wall of the atomizing chamber (23) is connected to one end of the first air supply pipe (33), the other end of which is connected to the output end of the circulating air pump (31), the exhaust pipe of the circulating air pump (31) is connected to one end of the first exhaust pipe (32), the other end of which is arranged outside the lifting block (17), and a heating element (34) is arranged at the upper end of the inner wall of the carburizing chamber (8).

6. A carburizing and quenching heat treatment tool according to claim 5, characterized in that: The workpiece pretreatment mechanism (3) comprises a workpiece fixing assembly (35) and a workpiece surface drilling assembly (36); the workpiece fixing assembly (35) is arranged on a driving tube (21); and the workpiece surface drilling assembly (36) is arranged on an inner side wall of a carburizing chamber (8).

7. A carburizing and quenching heat treatment tool according to claim 6, characterized in that: The workpiece fixing assembly (35) comprises a rotating disk (37) and a sliding block (57). The rotating disk (37) is sleeved on the lower end of the side wall of the driving tube (21). A connecting rod (38) is provided at the lower end of the rotating disk (37). A bottom plate (39) is provided at the lower end of the connecting rod (38). A water leakage hole (58) is provided on the bottom plate (39). A lead screw (43) is provided on the bottom plate (39). The lead screw (43) and the bottom plate (39) are threadedly connected. A handle (44) is provided at the lower end of the rotating disk (37), a second fixed groove (42) is rotatably provided at the upper end of the lead screw (43), a second motor (40) is provided at the inner top end of the rotating disk (37), a first fixed groove (41) is provided at the output end of the second motor (40), an annular slide groove (56) is provided at the upper end of the rotating disk (37), an annular slide groove (56) is provided at the lower end of the lifting block (17), and the slider (57) is slidably arranged in the annular slide groove (56).

8. The heat treatment tool for carburizing and quenching according to claim 7, characterized in that: The workpiece surface drilling assembly (36) comprises a third cylinder (45) and a second drill bit (49); the cylinder seat of the third cylinder (45) is arranged on the inner side wall of the carburizing chamber (8); the output end of the third cylinder (45) is provided with an equipment chamber (46); the outer side wall of the equipment chamber (46) is provided with a third motor (47); the output end of the third motor (47) is installed with a first drill bit (48); the first drill bit (48) is sleeved with a fourth gear (51); one end of the second drill bit (49) is rotatably arranged on the inner side wall of the equipment chamber (46); the second drill bit (49) is sleeved with a third gear (50); the third gear (50) and the fourth gear (51) are meshed and rotatably connected.

9. The heat treatment tool for carburizing and quenching according to claim 8, characterized in that: The gas replacement assembly (4) comprises a vacuum pump (52), the vacuum pump (52) being arranged on the outer wall of the carburizing chamber (8), a second exhaust pipe (54) being installed at the exhaust end of the vacuum pump (52), a second exhaust pipe (54) being provided with a second electronic valve (59), the second exhaust pipe (54) being arranged in the carburizing chamber (8), an argon gas storage tank (53) being arranged on the processing table (5), one end of a second gas supply pipe (55) being installed at the output end of the argon gas storage tank (53), the second gas supply pipe (55) being provided with a third electronic valve (60), and one end of the second gas supply pipe (55) being arranged in the carburizing chamber (8).

10. The heat treatment tool for carburizing and quenching according to claim 9, characterized in that: A heat insulation layer (61) is provided on the third motor (47).

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