Automatic conveying equipment for heat treatment of automobile hub axle tube and using method of automatic conveying equipment

Abstract

The invention discloses automobile hub axle tube heat treatment automatic conveying equipment and a using method thereof, and belongs to the technical field of automobile hub axle tube heat treatment. The automobile hub axle tube heat treatment automatic conveying equipment comprises a quenching furnace, an opening and closing mechanism is arranged on one side of the quenching furnace, an operation table is fixedly connected to one side of the quenching furnace, and a through groove is formed in the top of the operation table; a pair of guide rails is fixedly connected to the inner wall of the penetrating groove. By arranging the transmission mechanism and the push-pull mechanism, the automobile hub axle tube can be taken out again after being pushed into the quenching furnace, equipment such as a trolley is not needed, so that the operation time is greatly shortened, the production efficiency is improved, the production continuity is guaranteed, and by arranging the opening and closing mechanism, the furnace door can be opened when the push-pull mechanism pushes the automobile hub axle tube, so that the service life of the automobile hub axle tube is prolonged. The furnace door is closed when the push-pull mechanism is pulled out of the quenching furnace, the furnace door is accurately matched with the conveying rhythm, and the cooling mechanism is arranged, so that the automobile hub axle tube can be rapidly cooled when being taken out of the furnace, high-temperature oxidation of the axle tube can be effectively reduced, and the surface quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of heat treatment of automobile wheel hub axle tubes, and specifically relates to automatic conveying equipment for heat treatment of automobile wheel hub axle tubes and a use method thereof. Background Art

[0002] The automobile wheel hub axle tube is an important part of the automobile wheel hub. It is a key component connecting the wheel hub and the axle. It supports the wheel hub and transmits torque. It is crucial to the safety and stability of automobile driving. The heat treatment of the automobile wheel hub axle tube is a key process to improve its performance. The quenching treatment can achieve high hardness and wear resistance on the surface of the axle tube through rapid heating and cooling, while maintaining a certain toughness inside.

[0003] The existing automatic conveying equipment for heat treatment of automobile hub axle tubes still has the following shortcomings:

[0004] 1. The existing automatic conveying equipment for heat treatment of automobile hub axle tubes cannot take out the automobile hub axle tubes after pushing them into the quenching furnace. A trolley is needed to pull the automobile hub axle tubes out, which increases the operation time, reduces production efficiency, affects production continuity, and increases the equipment procurement cost of the enterprise. Later maintenance also requires investment, which increases the operating cost of the enterprise;

[0005] 2. The existing automatic conveying equipment for heat treatment of automobile hub shaft tubes cannot control the opening and closing of the furnace door in a linked manner. The opening and closing of the furnace door requires the operator to control it separately, which makes it difficult to accurately match the conveying rhythm, prolonging the processing time and reducing production efficiency;

[0006] 3. The existing automatic conveying equipment for heat treatment of automobile hub axle tubes cannot quickly cool the automobile hub axle tubes when they come out of the furnace. The conveying system and the cooling system lack effective connection, and the cooling operation cannot be started in time at the moment of coming out of the furnace, which will prolong the high temperature state time, increase the risk of oxidation, and affect the surface quality. Summary of the invention

[0007] In order to overcome the above defects, the present invention provides an automatic conveying device for heat treatment of automobile hub axle tube and a use method thereof, which solves the above problems.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic conveying device for heat treatment of automobile hub axle tube and a method for using the same, comprising:

[0009] Quenching furnace, on one side of the quenching furnace, there is an opening and closing mechanism. On one side of the quenching furnace, there is a fixed connection with an operating table. On the top of the operating table, there is a through groove. On the inner wall of the through groove, there is a pair of guide rails fixedly connected. Inside the through groove, there is a slider. On both sides of the slider, there are sliding grooves, and the sliding grooves are adapted to the guide rails. On the slider, there is a pushing and pulling mechanism. On the operating table, there is a transmission mechanism. On the top of the operating table, there is a storage rack. On one side of the storage rack, there are a pair of connecting blocks one fixedly connected. Between the pair of connecting blocks one, there is a cross bar one fixedly connected. At the bottom of the operating table, there is a cooling mechanism;

[0010] The opening and closing mechanism includes a protective cover and a support frame. Both the protective cover and the support frame are fixedly connected to one side of the quenching furnace. On the inner wall of the protective cover, there is a connecting plate one fixedly connected. On the connecting plate one, there is a threaded rod one rotatably connected. At the bottom of the threaded rod one, there is a bevel gear one coaxially fixedly connected. On the threaded rod one, there is a nut one threadedly connected. On one side of the nut one, there is a furnace door fixedly connected. The top of the threaded rod one is rotatably connected to the protective cover. On the support frame, there is a guide rod fixedly connected. On the guide rod, there is a connecting block two slidably connected. One side of the connecting block two is fixedly connected to the furnace door;

[0011] The pushing and pulling mechanism includes a sliding rod. The sliding rod is slidably connected to the slider. At the top of the sliding rod, there is a connecting rod one fixedly connected. At one end of the connecting rod one, there is a pushing and pulling block one fixedly connected. On the bottom of the pushing and pulling block one, there is a clamping groove one, and the clamping groove one is adapted to the cross bar one. On one side of the connecting rod one, there is a connecting rod fixedly connected. At the bottom of the sliding rod, there is a pushing and pulling block two fixedly connected. On the bottom of the pushing and pulling block two, there is a clamping groove two;

[0012] The transmission mechanism includes a support plate and a housing. The support plate is fixedly connected to the top of the operating table. The housing is fixedly connected to one side of the operating table. On the support plate, there is a U-shaped through groove, and the U-shaped through groove is adapted to the connecting rod. On one side of the housing, there is a servo motor fixedly connected. The output end of the servo motor penetrates through the housing and is rotatably connected thereto. The output end of the servo motor is coaxially fixedly connected with a threaded rod two. On the threaded rod two, there is a nut two threadedly connected. On the nut two, there is a connecting rod two fixedly connected. On the top of the housing, there is a through sliding groove, and the through sliding groove is adapted to the connecting rod two. At the top of the connecting rod two, there is a moving plate fixedly connected. On the moving plate, there is a through inclined groove, and the through inclined groove is adapted to the connecting rod. One end of the threaded rod two penetrates through the housing and the protective cover and is rotatably connected thereto. One end of the threaded rod two is coaxially fixedly connected with a bevel gear two, and the bevel gear two meshes with the bevel gear one;

[0013] The cooling mechanism includes a cylinder block fixedly connected to the bottom of the operating table. A piston plate is hermetically and slidably connected to the inner wall of the cylinder block. One side of the piston plate is fixedly connected to a sleeve. One end of the sleeve penetrates through the cylinder block and is slidably connected thereto. A moving rod is slidably connected to the inner wall of the sleeve. One end of the moving rod is fixedly connected to a second connecting plate, and the second connecting plate is adapted to a second clamping groove. On one side of the cylinder block, a first water outlet pipe, a second water outlet pipe, and a water inlet pipe are respectively communicated. Check valves are arranged on the first water outlet pipe, the second water outlet pipe, and the water inlet pipe. On the operating table, a plurality of first water distribution pipes and a plurality of second water distribution pipes are respectively arranged. One end of each first water distribution pipe is communicated with the first water outlet pipe, and one end of each second water distribution pipe is communicated with the second water outlet pipe. A plurality of first atomizing nozzles are communicated on each first water distribution pipe and each second water distribution pipe. A plurality of support frames are fixedly connected to the top of the operating table. A plurality of second atomizing nozzles are arranged on each support frame. A water distribution pipe is communicated at the top of each second atomizing nozzle. One end of the water distribution pipe is communicated with the second water outlet pipe. One end of the water inlet pipe is communicated with a water storage tank.

[0014] As a further solution of the present invention: a water inlet is communicated at the top of the water storage tank.

[0015] As a further solution of the present invention: the top of the water storage tank is fixedly connected to the cylinder block.

[0016] As a further solution of the present invention: a plurality of second cross bars are fixedly connected to the storage rack.

[0017] A method for using an automatic conveying device for heat treatment of an automobile wheel hub shaft tube includes the following steps:

[0018] S1. Place the automobile wheel hub shaft tube on the top of the storage rack, start the servo motor in the transmission mechanism, the transmission mechanism drives the furnace door in the opening and closing mechanism to rise and open, and at the same time, the pushing and pulling mechanism pushes the storage rack into the quenching furnace and the cylinder block in the cooling mechanism replenishes cooling water.

[0019] S2. Make the servo motor rotate in the reverse direction, the transmission mechanism drives the pushing and pulling mechanism to be withdrawn from the quenching furnace, the first pushing and pulling block in the pushing and pulling mechanism rises and disengages from the first cross bar on one side of the storage rack, the second pushing and pulling block rises and disengages from the second connecting plate in the cooling mechanism, and at the same time, the furnace door in the opening and closing mechanism descends and closes.

[0020] S3. After heat treatment, start the servo motor in the transmission mechanism again, the transmission mechanism drives the furnace door in the opening and closing mechanism to open again, and at the same time, the pushing and pulling mechanism extends into the quenching furnace, the first pushing and pulling block in the pushing and pulling mechanism descends and clamps the first cross bar on one side of the storage rack, and the second pushing and pulling block descends and clamps the second connecting plate in the cooling mechanism.

[0021] At S4, the servo motor is then reversed again, and the transmission mechanism drives the push-pull mechanism to pull out the quenching furnace inside the storage rack. At the same time, the cooling mechanism sprays and cools the automotive hub shaft tube. The cooling time is short, ensuring the uniformity of cooling, effectively reducing the risks of deformation and cracking.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. By setting the transmission mechanism and the push-pull mechanism, the present invention can push the automotive hub shaft tube into the quenching furnace and then take it out again without relying on additional equipment such as a trolley. This significantly shortens the operation time, improves production efficiency, ensures production continuity, and at the same time reduces the equipment procurement cost and maintenance cost.

[0024] 2. By setting the opening and closing mechanism, the present invention can open the furnace door when the push-pull mechanism pushes the automotive hub shaft tube and close the furnace door when the push-pull mechanism pulls out from the quenching furnace. It precisely coordinates with the conveying rhythm, reduces the operation link of manually controlling the opening and closing of the furnace door, improves production efficiency, and helps to achieve automated and highly efficient production.

[0025] 3. By setting the cooling mechanism, the present invention can rapidly cool the automotive hub shaft tube when it exits the furnace, effectively reducing the high-temperature oxidation of the shaft tube and improving the surface quality. The rapid cooling can also reduce the internal stress, avoid the deformation or cracking of the shaft tube, improve the product qualification rate, and at the same time, accelerate the production flow rate and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall schematic diagram of an automatic conveying device for heat treatment of automotive hub shaft tubes according to the present invention Figure 1 ;

[0027] Figure 2 is the enlarged schematic diagram at A of an automatic conveying device for heat treatment of automotive hub shaft tubes according to the present invention Figure 1 ;

[0028] Figure 3 is the overall schematic diagram of an automatic conveying device for heat treatment of automotive hub shaft tubes according to the present invention Figure 2 ;

[0029] Figure 4 is the schematic diagram of the cross-section of the quenching furnace, furnace door, protective cover and the second threaded rod of an automatic conveying device for heat treatment of automotive hub shaft tubes according to the present invention

[0030] Figure 5 is the enlarged schematic diagram at B of an automatic conveying device for heat treatment of automotive hub shaft tubes according to the present invention Figure 4 ;

[0031] Figure 6Schematic diagrams of the push-pull mechanism, cross-section of the operation table, and cross-section of the guide rail of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0032] Figure 7 Schematic diagram of the storage rack and the first push-pull block of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0033] Figure 8 Schematic diagram of the transmission mechanism and the cross-section of the protective cover of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0034] Figure 9 Schematic diagrams of the cross-section of the operation table, the cross-section of the guide rail, the cross-section of the first water outlet pipe, and the cross-section of the second water outlet pipe of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0035] Figure 10 Schematic diagram of the cross-section of the cylinder block of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0036] Figure 11 Schematic diagrams of the cross-section of the sleeve and the cross-section of the moving rod of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention;

[0037] Figure 12 Schematic flow chart of the usage method of an automatic conveying device for heat treatment of automobile hub axle tubes according to the present invention.

[0038] In the figure: 1. Quenching furnace; 2. Operation table; 3. Through groove; 4. Guide rail; 5. Slide block; 6. Storage rack; 7. First connecting block; 8. First cross bar; 9. Protective cover; 10. Support frame; 11. First connecting plate; 12. First threaded rod; 13. First bevel gear; 14. First nut; 15. Furnace door; 16. Guide rod; 17. Second connecting block; 18. Sliding rod; 19. First connecting rod; 20. First push-pull block; 21. Connecting rod; 22. Second push-pull block; 23. Support plate; 24. Housing; 25. Servo motor; 26. Second threaded rod; 27. Second nut; 28. Second connecting rod; 29. Moving plate; 30. Second bevel gear; 31. Cylinder block; 32. Piston plate; 33. Sleeve; 34. Moving rod; 35. Second connecting plate; 36. First water outlet pipe; 37. Second water outlet pipe; 38. Water inlet pipe; 39. First water distribution pipe; 40. Second water distribution pipe; 41. First atomizing nozzle; 42. Support frame; 43. Second atomizing nozzle; 44. Water distribution pipe; 45. Water storage tank; 46. Second cross bar. Detailed Description of the Invention

[0039] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.

[0040] Embodiment 1

[0041] As Figures 1 - 11As shown in the figure, an automatic conveying device for heat treatment of automobile hub axle tubes includes:

[0042] An automatic conveying device for heat treatment of automobile hub axle tubes includes a quenching furnace 1. A opening and closing mechanism is arranged on one side of the quenching furnace 1. An operating platform 2 is fixedly connected to one side of the quenching furnace 1. A through groove 3 is opened at the top of the operating platform 2. A pair of guide rails 4 are fixedly connected to the inner wall of the through groove 3. A slider 5 is arranged inside the through groove 3. Sliding grooves are opened on both sides of the slider 5, and the sliding grooves are adapted to the guide rails 4. A pushing and pulling mechanism is arranged on the slider 5. A transmission mechanism is arranged on the operating platform 2. A storage rack 6 is arranged on the top of the operating platform 2. A pair of connecting blocks one 7 are fixedly connected to one side of the storage rack 6. A cross bar one 8 is fixedly connected between the pair of connecting blocks one 7. A cooling mechanism is arranged at the bottom of the operating platform 2. Place the automobile hub axle tube on the top of the storage rack 6. The transmission mechanism first drives the pushing and pulling mechanism to move. The pushing and pulling mechanism drives the slider 5 to slide between the pair of guide rails 4. The pushing and pulling mechanism pushes the storage rack 6 through the cross bar one 8 on one side of the storage rack 6 and drives the relevant components in the cooling mechanism to supplement cooling water. At the same time, the transmission mechanism drives the opening and closing mechanism to open, so that the storage rack 6 can be smoothly pushed into the quenching furnace 1. Then the transmission mechanism drives the pushing and pulling mechanism to disengage from the storage rack 6 and the relevant components in the cooling mechanism respectively, and at the same time drives the opening and closing mechanism to close. After quenching, start the transmission mechanism again. The transmission mechanism drives the opening and closing mechanism to open again. At the same time, the pushing and pulling mechanism extends into the quenching furnace 1. The relevant components in the pushing and pulling mechanism descend to clamp the cross bar one 8 on one side of the storage rack 6, and pull the storage rack 6 out of the quenching furnace 1. The cooling mechanism sprays and cools the automobile hub axle tube. The cooling time is short, ensuring the uniformity of cooling, and effectively reducing the risk of deformation and cracking;

[0043] The opening and closing mechanism includes a protective cover 9 and a support frame 10. Both the protective cover 9 and the support frame 10 are fixedly connected to one side of the quenching furnace 1. A connecting plate one 11 is fixedly connected to the inner wall of the protective cover 9. A threaded rod one 12 is rotatably connected to the connecting plate one 11. A bevel gear one 13 is coaxially and fixedly connected to the bottom of the threaded rod one 12. A nut one 14 is threadedly connected to the threaded rod one 12. One side of the nut one 14 is fixedly connected to a furnace door 15. The top of the threaded rod one 12 is rotatably connected to the protective cover 9. A guide rod 16 is fixedly connected to the support frame 10. A connecting block two 17 is slidably connected to the guide rod 16. One side of the connecting block two 17 is fixedly connected to the furnace door 15. The bevel gear one 13 drives the threaded rod one 12 to rotate. The threaded rod one 12 drives the furnace door 15 to move through the nut one 14. The furnace door 15 drives the connecting block two 17 to slide on the guide rod 16. The guide rod 16 can ensure the stable movement of the furnace door 15;

[0044] The push-pull mechanism includes a sliding rod 18 which is slidably connected to the slider 5. A first connecting rod 19 is fixedly connected to the top of the sliding rod 18. One end of the first connecting rod 19 is fixedly connected to a first push-pull block 20. A first slot is formed at the bottom of the first push-pull block 20, and the first slot is adapted to the first cross bar 8. A connecting rod 21 is fixedly connected to one side of the first connecting rod 19. A second push-pull block 22 is fixedly connected to the bottom of the sliding rod 18. A second slot is formed at the bottom of the second push-pull block 22. When the connecting rod 21 pushes and pulls the first connecting rod 19, the first push-pull block 20 clamps the first cross bar 8 through the first slot at the bottom, so that the first connecting rod 19 can push and pull the first cross bar 8 through the first push-pull block 20. At the same time, the first connecting rod 19 drives the slider 5 to move through the sliding rod 18, and the sliding rod 18 drives the second push-pull block 22 to move. When the connecting rod 21 drives the first connecting rod 19 to rise, the first connecting rod 19 drives the first push-pull block 20 to disengage from the first cross bar 8. The first connecting rod 19 drives the sliding rod 18 to slide and rise on the slider 5, and the sliding rod 18 drives the second push-pull block 22 to rise;

[0045] The transmission mechanism includes a support plate 23 and a housing 24. The support plate 23 is fixedly connected to the top of the operating table 2, and the housing 24 is fixedly connected to one side of the operating table 2. A U-shaped through groove is formed in the support plate 23, and the U-shaped through groove is adapted to the connecting rod 21. A servo motor 25 is fixedly connected to one side of the housing 24. The output end of the servo motor 25 penetrates through the housing 24 and is rotatably connected thereto. The output end of the servo motor 25 is coaxially and fixedly connected with a second threaded rod 26. A second nut 27 is threadedly connected to the second threaded rod 26. A second connecting rod 28 is fixedly connected to the second nut 27. A through chute is formed in the top of the housing 24, and the through chute is adapted to the second connecting rod 28. The top of the second connecting rod 28 is fixedly connected with a moving plate 29. A through inclined groove is formed in the moving plate 29, and the through inclined groove is adapted to the connecting rod 21. One end of the second threaded rod 26 respectively penetrates through the housing 24 and the protective cover 9 and is rotatably connected thereto. A second bevel gear 30 is coaxially and fixedly connected to one end of the second threaded rod 26. The second bevel gear 30 meshes with the first bevel gear 13. When the servo motor 25 is started, the output end of the servo motor 25 rotates forward to drive the second threaded rod 26 to rotate. The second threaded rod 26 drives the second nut 27 to move. The second nut 27 drives the moving plate 29 to move away from the servo motor 25 through the second connecting rod 28, so that the connecting rod 21 moves horizontally in the U-shaped through groove on the support plate 23. When the connecting rod 21 moves to the lower bending part of the U-shaped through groove on the support plate 23, the moving plate 29 continues to move, and the connecting rod 21 rises along the U-shaped through groove on the support plate 23 until the connecting rod 21 contacts the other end of the through inclined groove on the moving plate 29, and the connecting rod 21 just moves to the upper bending part of the U-shaped through groove on the support plate 23. At the same time, the second threaded rod 26 drives the second bevel gear 30 to rotate, and the second bevel gear 30 drives the meshing first bevel gear 13 to rotate. Then, the output end of the servo motor 25 rotates reversely, so that the moving plate 29 moves close to the servo motor 25, driving the connecting rod 21 to move horizontally close to the servo motor 25 along the U-shaped through groove on the support plate 23;

[0046] The cooling mechanism includes a cylinder block 31, which is fixedly connected to the bottom of the operating table 2. A piston plate 32 is hermetically and slidably connected to the inner wall of the cylinder block 31. One side of the piston plate 32 is fixedly connected to a sleeve 33. One end of the sleeve 33 penetrates through the cylinder block 31 and is slidably connected thereto. A moving rod 34 is slidably connected to the inner wall of the sleeve 33. One end of the moving rod 34 is fixedly connected to a second connecting plate 35, and the second connecting plate 35 is adapted to the second card slot. On one side of the cylinder block 31, a first water outlet pipe 36, a second water outlet pipe 37 and a water inlet pipe 38 are respectively communicated. Check valves are arranged on the first water outlet pipe 36, the second water outlet pipe 37 and the water inlet pipe 38. On the operating table 2, a plurality of first water distribution pipes 39 and a plurality of second water distribution pipes 40 are respectively arranged. One end of each first water distribution pipe 39 is communicated with the first water outlet pipe 36, and one end of each second water distribution pipe 40 is communicated with the second water outlet pipe 37. A plurality of first atomizing nozzles 41 are communicated on each first water distribution pipe 39 and the second water distribution pipe 40. A plurality of support frames 42 are fixedly connected to the top of the operating table 2. A plurality of second atomizing nozzles 43 are arranged on each support frame 42. A water distribution pipe 44 is communicated at the top of each second atomizing nozzle 43. One end of the water distribution pipe 44 is communicated with the second water outlet pipe 37. One end of the water inlet pipe 38 is communicated with a water storage tank 45. The second push-pull block 22 clamps the second connecting plate 35 through the second card slot at the bottom. The second push-pull block 22 drives the second connecting plate 35 to move. The second connecting plate 35 can drive the moving rod 34 to extend on the sleeve 33. When the moving rod 34 completely extends, the moving rod 34 drives the sleeve 33 to move, and the sleeve 33 pulls the piston plate 32, so that the cooling water in the water storage tank 45 enters the cylinder block 31 through the water inlet pipe 38. The check valve on the water inlet pipe 38 allows the cooling water to flow into the cylinder block 31 from the water inlet pipe 38. The second connecting plate 35 can also drive the moving rod 34 to contract on the sleeve 33. When the moving rod 34 completely contracts, the moving rod 34 drives the sleeve 33 to move, and the sleeve 33 moves to push the piston plate 32, so that the cooling water in the cylinder block 31 flows into the first water outlet pipe 36 and the second water outlet pipe 37 respectively. The check valve on the first water outlet pipe 36 allows the cooling water to flow into the first water outlet pipe 36 from the cylinder block 31, and the check valve on the second water outlet pipe 37 allows the cooling water to flow into the second water outlet pipe 37 from the cylinder block 31. The cooling water in the first water outlet pipe 36 is sprayed out by the first atomizing nozzles 41 through the first water distribution pipes 39. Part of the cooling water in the second water outlet pipe 37 is sprayed out by the first atomizing nozzles 41 through the second water distribution pipes 40, and the other part is sprayed out by the second atomizing nozzles 43 through the water distribution pipes 44;

[0047] A water inlet is communicated at the top of the water storage tank 45, and the water inlet is used to supplement cooling water to the water storage tank 45;

[0048] The top of the water storage tank 45 is fixedly connected to the cylinder block 31 to prevent the water storage tank 45 from moving;

[0049] A plurality of second cross bars 46 are fixedly connected to the storage rack 6, and the automotive wheel hub axle tubes are placed on the second cross bars 46.

[0050] The working principle of the present invention is as follows:

[0051] Place the automotive wheel hub shaft tube on the top of the storage rack 6, start the servo motor 25, the positive rotation of the output end of the servo motor 25 drives the second threaded rod 26 to rotate forward, the second threaded rod 26 drives the second nut 27 to move, and the second nut 27 drives the moving plate 29 to move away from the servo motor 25 through the second connecting rod 28, so that the connecting rod 21 moves horizontally in the U-shaped through groove on the support plate 23. The connecting rod 21 pushes the first connecting rod 19, and the first push-pull block 20 clamps the first cross bar 8 through the first slot at the bottom, so that the first connecting rod 19 pushes the storage rack 6. At the same time, the second threaded rod 26 drives the second bevel gear 30 to rotate forward, the second bevel gear 30 drives the first bevel gear 13 meshing with it to rotate forward, the first bevel gear 13 drives the first threaded rod 12 to rotate forward, and the first threaded rod 12 drives the furnace door 15 to rise through the first nut 14, which is precisely coordinated with the conveying rhythm of the storage rack 6, reducing the operation link of manually controlling the opening and closing of the furnace door 15, improving production efficiency, and facilitating the realization of automated and highly efficient production. Moreover, the first connecting rod 19 drives the slider 5 to move through the sliding rod 18, the sliding rod 18 drives the second push-pull block 22 to move, the second push-pull block 22 clamps the second connecting plate 35 through the second slot at the bottom, and the second push-pull block 22 drives the second connecting plate 35 to move. The second connecting plate 35 can drive the moving rod 34 to extend on the sleeve 33. When the moving rod 34 is fully extended, the moving rod 34 drives the sleeve 33 to move, and the sleeve 33 pulls the piston plate 32, so that the cooling water in the water storage tank 45 enters the cylinder block 31 through the water inlet pipe 38. The check valve on the water inlet pipe 38 allows the cooling water to flow into the cylinder block 31 from the water inlet pipe 38;

[0052] When the connecting rod 21 moves to the lower bent part of the U-shaped through groove on the support plate 23, the storage rack 6 is smoothly pushed into the quenching furnace 1, the moving plate 29 continues to move, the connecting rod 21 rises along the U-shaped through groove on the support plate 23, the connecting rod 21 drives the first connecting rod 19 to rise, the first connecting rod 19 drives the first push-pull block 20 and the first cross bar 8 to disengage, the first connecting rod 19 drives the sliding rod 18 to slide and rise on the slider 5, the sliding rod 18 drives the second push-pull block 22 to rise, and the second push-pull block 22 and the second connecting plate 35 disengage. Until the connecting rod 21 contacts the other end of the through inclined groove on the moving plate 29, the connecting rod 21 just moves to the upper bent part of the U-shaped through groove on the support plate 23. After that, make the output end of the servo motor 25 rotate reversely, the second threaded rod 26 rotates reversely, the second threaded rod 26 drives the first threaded rod 12 to rotate reversely through the second bevel gear 30 and the first bevel gear 13, so that the furnace door 15 descends. At the same time, the moving plate 29 moves closer to the servo motor 25, driving the connecting rod 21 to move horizontally close to the servo motor 25 along the U-shaped through groove on the support plate 23, and the connecting rod 21 drives the first connecting rod 19 and the first push-pull block 20 to disengage from the quenching furnace 1;

[0053] After quenching, the servo motor 25 is started again. The positive rotation of the output end of the servo motor 25 drives the second threaded rod 26 to rotate forward, the furnace door 15 rises, the connecting rod 21 moves horizontally for a certain distance and then descends. The first push-pull block 20 enters the quenching furnace 1 and re-clamps the first cross bar 8, and the second pull block 22 re-clamps the second connecting plate 35. Then, the output end of the servo motor 25 is rotated reversely again, the furnace door 15 descends, the connecting rod 21 moves horizontally close to the servo motor 25, and the first push-pull block 20 pulls the storage rack 6 out of the quenching furnace 1. The second pull block 22 drives the moving rod 34 to contract on the sleeve 33 through the second connecting plate 35. When the moving rod 34 is completely contracted, the moving rod 34 drives the sleeve 33 to move, and the sleeve 33 moves to push the piston plate 32, so that the cooling water in the cylinder block 31 flows into the first water outlet pipe 36 and the second water outlet pipe 37 respectively. The check valve on the first water outlet pipe 36 allows the cooling water to flow from the cylinder block 31 into the first water outlet pipe 36, and the check valve on the second water outlet pipe 37 allows the cooling water to flow from the cylinder block 31 into the second water outlet pipe 37. The cooling water in the first water outlet pipe 36 is sprayed out by the first atomizing nozzle 41 through the first water distribution pipe 39. Part of the cooling water in the second water outlet pipe 37 is sprayed out by the first atomizing nozzle 41 through the second water distribution pipe 40, and the other part is sprayed out by the second atomizing nozzle 43 through the water distribution pipe 44 to perform spray cooling on the automobile hub shaft tube. The cooling time is short, the cooling uniformity is ensured, and the risks of deformation and cracking are effectively reduced.

[0054] Embodiment 2

[0055] As Figure 12 shown, based on Embodiment 1, a method for using an automatic conveying device for heat treatment of an automobile hub shaft tube includes the following steps:

[0056] S1. Place the automobile hub shaft tube on the top of the storage rack 6, start the servo motor 25 in the transmission mechanism, the transmission mechanism drives the furnace door 15 in the opening and closing mechanism to rise and open, and at the same time the pushing and pulling mechanism pushes the storage rack 6 into the quenching furnace 1 and the cylinder block 31 in the cooling mechanism is replenished with cooling water;

[0057] S2. Reverse the rotation of the servo motor 25, the transmission mechanism drives the pushing and pulling mechanism to be pulled out from the inside of the quenching furnace 1. The first push-pull block 20 in the pushing and pulling mechanism rises and disengages from the first cross bar 8 on one side of the storage rack 6, and the second push-pull block 22 rises and disengages from the second connecting plate 35 in the cooling mechanism. At the same time, the furnace door 15 in the opening and closing mechanism descends and closes;

[0058] S3. After heat treatment, start the servo motor 25 in the transmission mechanism again, the transmission mechanism drives the furnace door 15 in the opening and closing mechanism to open again, and at the same time the pushing and pulling mechanism extends into the quenching furnace 1. The first push-pull block 20 in the pushing and pulling mechanism descends and clamps the first cross bar 8 on one side of the storage rack 6, and the second push-pull block 22 descends and clamps the second connecting plate 35 in the cooling mechanism;

[0059] At S4, the servo motor is then reversed again by 25, and the transmission mechanism drives the push-pull mechanism to pull out the quenching furnace 1 inside the storage rack 6. At the same time, the cooling mechanism sprays and cools the automotive wheel hub shaft tube. The cooling time is short, ensuring the uniformity of cooling, effectively reducing the risk of deformation and cracking.

[0060] The above describes in detail the preferred embodiments of this patent. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of this patent.

Claims

1. An automatic conveying device for heat treatment of automobile hub axle tubes, comprising a quenching furnace (1), characterized in that: An opening and closing mechanism is provided on one side of the quenching furnace (1); an operating table (2) is fixedly connected to one side of the quenching furnace (1); a through groove (3) is provided on the top of the operating table (2); a pair of guide rails (4) are fixedly connected to the inner wall of the through groove (3); a slider (5) is provided inside the through groove (3); both sides of the slider (5) are provided with slide grooves, the slide grooves are matched with the guide rails (4); a push-pull mechanism is provided on the slider (5); a transmission mechanism is provided on the operating table (2); a storage rack (6) is provided on the top of the operating table (2); a pair of connecting blocks (7) are fixedly connected to one side of the storage rack (6); a cross bar (8) is fixedly connected between the pair of connecting blocks (7); and a cooling mechanism is provided at the bottom of the operating table (2); The opening and closing mechanism comprises a protective cover (9) and a support frame (10), the protective cover (9) and the support frame (10) are both fixedly connected to one side of the quenching furnace (1), a connecting plate (11) is fixedly connected to the inner wall of the protective cover (9), a threaded rod (12) is rotatably connected to the connecting plate (11), a bevel gear (13) is coaxially fixedly connected to the bottom of the threaded rod (12), a nut (14) is threadedly connected to the threaded rod (12), a furnace door (15) is fixedly connected to one side of the nut (14), the top of the threaded rod (12) is rotatably connected to the protective cover (9), a guide rod (16) is fixedly connected to the support frame (10), a connecting block (17) is slidably connected to the guide rod (16), and one side of the connecting block (17) is fixedly connected to the furnace door (15); The push-pull mechanism comprises a sliding rod (18), wherein the sliding rod (18) is slidably connected to the slider (5), the top of the sliding rod (18) is fixedly connected to a connecting rod (19), one end of the connecting rod (19) is fixedly connected to a push-pull block (20), a slot (1) is provided at the bottom of the push-pull block (20), the slot (1) is adapted to a cross bar (8), a connecting rod (21) is fixedly connected to one side of the connecting rod (19), a push-pull block (22) is fixedly connected to the bottom of the sliding rod (18), and a slot (2) is provided at the bottom of the push-pull block (22); The transmission mechanism comprises a support plate (23) and a shell (24), wherein the support plate (23) is fixedly connected to the top of the operating table (2), and the shell (24) is fixedly connected to one side of the operating table (2). A U-shaped through-groove is provided on the support plate (23), and the U-shaped through-groove is adapted to the connecting rod (21). A servo motor (25) is fixedly connected to one side of the shell (24), and an output end of the servo motor (25) passes through the shell (24) and is rotatably connected thereto. A second threaded rod (26) is coaxially fixedly connected to the output end of the servo motor (25), and a second nut (27) is threadedly connected to the second threaded rod (26). The second nut (27) is fixedly connected to the second connecting rod (28), the top of the housing (24) is provided with a through slide groove, the through slide groove is adapted to the second connecting rod (28), the top of the second connecting rod (28) is fixedly connected to a moving plate (29), the moving plate (29) is provided with a through inclined groove, the through inclined groove is adapted to the connecting rod (21), one end of the second threaded rod (26) is respectively connected to the housing (24) and the protective cover (9) and is rotatably connected thereto, one end of the second threaded rod (26) is coaxially fixedly connected to the second bevel gear (30), the second bevel gear (30) is meshed with the first bevel gear (13); The cooling mechanism comprises a cylinder body (31), the cylinder body (31) is fixedly connected to the bottom of the operating table (2), a piston plate (32) is sealingly and slidably connected to the inner wall of the cylinder body (31), a sleeve (33) is fixedly connected to one side of the piston plate (32), one end of the sleeve (33) passes through the cylinder body (31) and is slidably connected thereto, a moving rod (34) is slidably connected to the inner wall of the sleeve (33), one end of the moving rod (34) is fixedly connected to a second connecting plate (35), the second connecting plate (35) is matched with a second card slot, one side of the cylinder body (31) is respectively connected with a first water outlet pipe (36), a second water outlet pipe (37) and a water inlet pipe (38), the first water outlet pipe (36), the second water outlet pipe (37) and the water inlet pipe (38) are all provided with a one-way valve, and the operating table A plurality of water distribution pipes (39) and a plurality of water distribution pipes (40) are respectively arranged on the operating table (2), one end of each of the water distribution pipes (39) is connected to the water outlet pipe (36), one end of each of the water distribution pipes (40) is connected to the water outlet pipe (37), and a plurality of atomizing nozzles (41) are connected to each of the water distribution pipes (39) and the water distribution pipes (40). A plurality of support frames (42) are fixedly connected to the top of the operating table (2), and a plurality of atomizing nozzles (43) are arranged on each of the support frames (42). A water distribution pipe (44) is connected to the top of each of the atomizing nozzles (43), and one end of the water distribution pipe (44) is connected to the water outlet pipe (37). One end of the water inlet pipe (38) is connected to a water storage tank (45).

2. The automatic conveying equipment for heat treatment of automobile hub axle tube according to claim 1 is characterized by: The top of the water storage tank (45) is connected to a water inlet.

3. The automatic conveying equipment for heat treatment of automobile hub shaft tube according to claim 2 is characterized by: The top of the water storage tank (45) is fixedly connected to the cylinder body (31).

4. The automatic conveying equipment for heat treatment of automobile hub shaft tube according to claim 3 is characterized by: A plurality of second cross bars (46) are fixedly connected to the storage rack (6).

5. A method for using the automatic conveying equipment for heat treatment of automobile hub axle tubes according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, placing the automobile wheel hub shaft tube on the top of the storage rack (6), starting the servo motor (25) in the transmission mechanism, the transmission mechanism drives the furnace door (15) in the opening and closing mechanism to rise and open, and at the same time the push-pull mechanism pushes the storage rack (6) into the quenching furnace (1) and the cylinder (31) in the cooling mechanism is replenished with cooling water; S2, causing the servo motor to rotate in the opposite direction (25), the transmission mechanism drives the push-pull mechanism to be pulled out from the interior of the quenching furnace (1), the push-pull block 1 (20) in the push-pull mechanism rises and detaches from the crossbar 1 (8) on one side of the rack (6), the push-pull block 2 (22) rises and detaches from the connecting plate 2 (35) in the cooling mechanism, and at the same time the furnace door (15) in the opening and closing mechanism descends and closes; S3, after the heat treatment, the servo motor (25) in the transmission mechanism is started again, the transmission mechanism drives the furnace door (15) in the opening and closing mechanism to open again, and at the same time the push-pull mechanism extends into the quenching furnace (1), the push-pull block 1 (20) in the push-pull mechanism descends to clamp the cross bar 1 (8) on one side of the storage rack (6), and the push-pull block 2 (22) descends to clamp the connecting plate 2 (35) in the cooling mechanism; S4, then the servo motor is rotated in the reverse direction again (25), and the transmission mechanism drives the push-pull mechanism to move the object. The quenching furnace (1) in the frame (6) is pulled out, and at the same time, the cooling mechanism sprays and cools the automobile hub axle tube. The cooling time is short, ensuring the uniformity of cooling and effectively reducing the risk of deformation and cracking.

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