A vacuum tempering furnace for magnesium fluoride material processing

Abstract

The invention relates to the field of vacuum tempering furnaces, in particular to a vacuum tempering furnace for processing magnesium fluoride materials, comprising a heating mechanism, a ventilation mechanism, a cooling mechanism, a rotating mechanism, a clamping mechanism and a stabilizing mechanism; a cooling channel is arranged in the ventilation channel, and nitrogen flowing in a furnace body and in the ventilation channel can be rapidly cooled simultaneously, and the cooled nitrogen flows back into the furnace body, and the cooling speed can be accelerated; a driving gear is driven to rotate by a second motor, and the driving gear is meshed with four passive gears at the same time, and the four passive gears are driven to rotate simultaneously, and the passive gear drives a material discharge bottom plate to rotate synchronously through a rotating shaft, that is, four workstations rotate synchronously, and four workpieces can be synchronously processed simultaneously, and at the same time, the workpiece rotates at a uniform speed in situ, and each surface of the workpiece is ensured to be heated evenly; a top plate contacts with the material, and cooperates with the clamping mechanism, and can prevent the material from tilting and shaking during the rotation process.

Description

Technical Field

[0001] The invention relates to the field of vacuum tempering furnaces, in particular to a vacuum tempering furnace for processing magnesium fluoride materials. Background Art

[0002] Magnesium fluoride is a compound of halogen element fluorine and metallic element magnesium. A vacuum tempering furnace is required for the processing of magnesium fluoride. The vacuum tempering furnace consists of a main machine, a vacuum system, a cold air system, an air charging system, a pneumatic system, an electrical control system, and an external transport vehicle. It is mainly suitable for vacuum quenching and tempering after bright quenching, as well as low-temperature annealing and aging treatment.

[0003] When using the existing vacuum tempering furnace, the workpiece to be tempered is mostly placed on the placement plate in the vacuum tempering furnace for heating and tempering, which often leads to uneven heating of the workpiece surface and affects the tempering quality of the workpiece; at the same time, most of the existing vacuum tempering furnaces are only suitable for tempering processing of a single workpiece, and the workpiece processing efficiency is low. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a vacuum tempering furnace for processing magnesium fluoride materials.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a vacuum tempering furnace for magnesium fluoride material processing, comprising a heating mechanism, a ventilation mechanism, a cooling mechanism, a rotating mechanism, a clamping mechanism and a stabilizing mechanism; the ventilation mechanism and the cooling mechanism are both arranged in the side wall of the heating mechanism, the cooling mechanism is located outside the ventilation mechanism, and the rotating mechanism is installed at the bottom end inside the heating mechanism; the clamping mechanism is fixedly installed on the rotating mechanism, and the stabilizing mechanism is installed at the upper end inside the heating mechanism; the heating mechanism comprises a barrel-shaped furnace body, and an annular electric heating wire is installed on the inner wall of the furnace body; a furnace cover is arranged at the upper end of the furnace body, a handle is arranged on one side of the furnace cover, and a rotating support rod is arranged on the other side of the furnace cover, the rotating support rod is rotatably installed in a mounting block, the lower end of the mounting block is fixedly installed on the upper end of a first telescopic rod, and the first telescopic rod is fixedly installed on the outer wall of the upper end of the furnace body; a circle of sealing flange is arranged at the lower end of the furnace cover, and the sealing flange is adapted to the upper port of the furnace body.

[0006] Specifically, the ventilation mechanism includes an exhaust port arranged on the side wall of the furnace body, and the exhaust port is sealed and connected to an external vacuum machine; an air inlet is also arranged on the side wall of the furnace body, and the air inlet is sealed and connected to an external nitrogen filling machine; a partition cavity is vertically arranged between the exhaust port and the air inlet, a hydraulic rod is installed at the bottom of the partition cavity, and a partition plate is fixedly connected to the upper end of the hydraulic rod, and the diameter of the partition plate is larger than the diameter of the air inlet and the exhaust port.

[0007] Specifically, the ventilation mechanism also includes a ventilation cavity arranged in the furnace cover, an air inlet slot is arranged in the middle of the ventilation cavity, and the air inlet slot connects the ventilation cavity and the furnace body; a first motor is installed in the middle position of the upper end surface of the ventilation cavity, and a ventilation fan is installed at the lower end of the first motor, and the ventilation fan is located in the air inlet slot; a plurality of through air outlet slots are arranged on the circumferential edge of the bottom surface of the ventilation cavity; a sealing slot corresponding to the air outlet slot is arranged on the side edge of the upper port of the furnace body, and a vertical ventilation channel is arranged at the lower end of the sealing slot, the ventilation channel is located in the side wall of the furnace body, and the lower end of the ventilation channel is connected to the furnace body.

[0008] Specifically, the cooling mechanism includes a cooling channel arranged in a surrounding manner within the side wall of the furnace body, and the cooling channel is located outside the ventilation channel; a water inlet interface is arranged at the upper end of the cooling channel, and a water outlet interface is arranged at the lower end of the cooling channel.

[0009] Specifically, the rotating mechanism includes a mounting plate fixedly arranged at the lower end of the furnace body, and four supporting bosses are arranged on the upper surface of the mounting plate, and the four supporting bosses are located at the four vertices of the same circle; a second motor is installed under the mounting plate, and a driving gear is installed on the upper end of the second motor, and the driving gear is located in the middle position of the upper surface of the mounting plate; a passive gear of the same specification is installed on each of the four supporting bosses, and the four passive gears are all meshed with the driving gear, and there is no direct contact between the four passive gears; a rotating shaft of the same specification is coaxially arranged on the upper end of each of the four passive gears, and a partition plate is arranged on the upper end of the passive gear, and the partition plate is fixedly installed in the furnace body, and the rotating shafts all penetrate into the upper end of the partition plate.

[0010] Specifically, the clamping mechanism includes a discharge base plate coaxially installed on the upper end of the rotating shaft, a movable groove is arranged in the discharge base plate, two guide grooves are symmetrically arranged on the upper end surface of the discharge base plate, and the guide groove is connected with the movable groove; a limiting slide groove is arranged in the middle position of the lower end of the movable groove, and two limiting guide grooves are symmetrically arranged at both ends of the limiting slide groove.

[0011] Specifically, the clamping mechanism also includes a third motor fixedly mounted on the bottom of the limiting slide groove, the upper end of the third motor is connected to a screw rod, the upper end of the screw rod is sleeved in a movable sleeve, a hollow slide groove is arranged inside the movable sleeve, an inner threaded opening is arranged at the lower end of the hollow slide groove, and the inner threaded opening is threadedly connected to the screw rod; two limiting slide bolts are symmetrically arranged on the outer side of the lower end of the movable sleeve, and the limiting slide bolts are clamped in the limiting guide groove.

[0012] Specifically, the clamping mechanism also includes a sleeve bolt fixed and coaxially arranged at the upper end of the movable sleeve, a pressure plate is arranged at the upper end of the sleeve bolt, a linkage sleeve is sleeved in the sleeve bolt, two connecting heads are symmetrically arranged on both sides of the linkage sleeve, a movable connecting rod is movably connected to the connecting head, and the other end of the movable connecting rod is movably connected to the lower end of a slider, the slider is clamped in the guide groove, and a square chuck is arranged at one end of the upper end of the slider close to the center of the discharge bottom plate.

[0013] Specifically, the stabilizing mechanism includes a hydraulic box installed in the furnace cover, the hydraulic box is located at the upper end of the ventilation chamber, the lower end of the hydraulic box is connected to two second telescopic rods, the second telescopic rods pass through the ventilation chamber, the lower ends of the second telescopic rods extend to the outside of the lower end of the furnace cover, the lower ends of the two second telescopic rods are simultaneously connected to the two ends of an annular mounting plate, four limiting sleeves are arranged at the lower end of the annular mounting plate, the limiting sleeves correspond to the position of the discharge bottom plate; the lower end of the limiting sleeve is sleeved with a limiting protrusion, and the lower end of the limiting protrusion is fixedly connected to a top plate.

[0014] Beneficial effects of the present invention:

[0015] (1) The cooling channel is arranged in the ventilation channel, so that the nitrogen inside the furnace body and the nitrogen flowing in the ventilation channel can be quickly cooled at the same time. The cooled nitrogen flows back into the furnace body, which can accelerate the cooling speed.

[0016] (2) The passive gear is supported and limited by the supporting boss, and the limiting effect of the partition plate on the rotating shaft can effectively prevent the passive gear from deflecting and falling off.

[0017] (3) The second motor drives the driving gear to rotate, and the driving gear meshes with the four passive gears at the same time, which will drive the four passive gears to rotate simultaneously. The passive gear drives the discharge bottom plate to rotate synchronously through the rotating shaft, that is, there are four workstations that rotate synchronously, and four workpieces can be processed synchronously at the same time. At the same time, the workpiece rotates at a constant speed in place to ensure that all surfaces of the workpiece are heated evenly.

[0018] (4) The upper end of the screw is sleeved in the movable sleeve, and the lower end of the hollow slide groove is provided with an inner threaded opening threadedly connected to the screw. At the same time, the limit slide bolt is clamped in the limit guide groove. The limit guide groove has a limiting effect on the movable sleeve. Therefore, when the third motor drives the screw to rotate, the movable sleeve will slide up and down along the limit slide groove.

[0019] (5) After the furnace cover is engaged with the furnace body, the second telescopic rod is extended by the hydraulic box, causing the annular mounting plate to move downward until the top plate contacts the upper end of the material. When the passive gear drives the discharge bottom plate to rotate synchronously, the top plate will rotate with the material because the limit protrusion is movably installed in the limit sleeve. The top plate contacts the material, which can prevent the material from tilting and shaking during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A front cross-sectional view of a vacuum tempering furnace for processing magnesium fluoride materials provided by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 3 for Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 4 A schematic diagram of the structure of the rotating mechanism and the clamping mechanism provided by the present invention;

[0025] Figure 5 This is a top view of the rotating mechanism structure provided by the present invention.

[0026] In the figure: 1. Heating mechanism; 11. Furnace body; 12. Electric heating wire; 13. Furnace cover; 14. Rotating support rod; 15. Mounting block; 16. First telescopic rod; 17. Sealing flange; 2. Ventilation mechanism; 21. Exhaust port; 22. Vacuum machine; 23. Air inlet; 24. Nitrogen filling machine; 25. Partition chamber; 26. Hydraulic rod; 27. Partition plate; 28. Ventilation chamber; 29. ​​Air inlet slot; 210. First motor; 211. Ventilation fan; 212. Air outlet bayonet; 213. Sealing bayonet; 214. Ventilation channel; 3. Cooling mechanism; 31. Cooling channel; 32. Water inlet interface; 33. Water outlet interface; 4. Rotating mechanism; 41. Mounting plate; 42. Support boss; 43. Second motor; 44. Driving gear; 45. Passive gear; 46. Rotating shaft; 47. Partition plate; 5. Clamping mechanism; 51. Discharging bottom plate; 52. Movable groove; 53. Guide groove; 54. Limiting slide groove; 55. Limiting guide groove; 56. Third motor; 57. Screw; 58. Movable sleeve; 59. Hollow slide groove; 510. Internal screw mouth; 511. Limiting slide bolt; 512. Sleeve bolt; 513. Press plate; 514. Linkage sleeve; 515. Movable connecting rod; 516. Sliding block; 517. Square chuck; 6. Stabilizing mechanism; 61. Hydraulic box; 62. Second telescopic rod; 63. Annular mounting plate; 64. Limiting sleeve; 65. Limiting protrusion; 66. Top plate. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-Figure 5 As shown, a vacuum tempering furnace for magnesium fluoride material processing described in the present invention comprises a heating mechanism 1, a ventilation mechanism 2, a cooling mechanism 3, a rotating mechanism 4, a clamping mechanism 5 and a stabilizing mechanism 6; the ventilation mechanism 2 and the cooling mechanism 3 are both arranged in the side wall of the heating mechanism 1, the cooling mechanism 3 is located outside the ventilation mechanism 2, and the rotating mechanism 4 is installed at the bottom end of the heating mechanism 1; the clamping mechanism 5 is fixedly installed on the rotating mechanism 4, and the stabilizing mechanism 6 is installed at the upper end of the heating mechanism 1; the heating mechanism 1 comprises a barrel-shaped furnace body 11, and an annular electric heating wire 12 is installed on the inner wall of the furnace body 11; a furnace cover 13 is arranged at the upper end of the furnace body 11, a handle is arranged on one side of the furnace cover 13, and a handle is arranged on the other side of the furnace cover 13 A rotating support rod 14 is arranged, and the rotating support rod 14 is rotatably installed in a mounting block 15. The lower end of the mounting block 15 is fixedly installed on the upper end of the first telescopic rod 16, and the first telescopic rod 16 is fixedly installed on the outer wall of the upper end of the furnace body 11; a circle of sealing flange 17 is arranged at the lower end of the furnace cover 13, and the sealing flange 17 is adapted to the upper end of the furnace body 11; the inside of the furnace body 11 is heated by the electric heating wire 12; the furnace cover 13 can be rotated with the rotating support rod 14 as a fulcrum, and the furnace cover 13 is driven to rise or fall by the first telescopic rod 16, so as to facilitate the installation and rotation of the furnace cover 13; the sealing flange 17 is adapted to the upper end of the furnace body 11, and when the furnace cover 13 is clamped on the upper end of the furnace body 11, it can play a sealing role.

[0029] Specifically, the ventilation mechanism 2 includes an exhaust port 21 arranged on the side wall of the furnace body 11, and the exhaust port 21 is sealed and connected to an external vacuum machine 22; an air inlet 23 is also arranged on the side wall of the furnace body 11, and the air inlet 23 is sealed and connected to an external nitrogen filling machine 24; a partition cavity 25 is vertically arranged between the exhaust port 21 and the air inlet 23, and a hydraulic rod 26 is installed at the bottom of the partition cavity 25, and a partition plate 27 is fixedly connected to the upper end of the hydraulic rod 26, and the diameter of the partition plate 27 is larger than the diameter of the air inlet 23 and the exhaust port 21; when it is necessary to evacuate the furnace, the furnace cover 13 is installed to achieve the sealing of the furnace body 11, and the air inlet 23 is sealed. The partition plate 27 at the air inlet 23 is pushed up to seal the partition cavity 25 at the air inlet 23, and the partition plate 27 at the exhaust port 21 is contracted to open the exhaust port 21, and the interior of the furnace body 11 is evacuated by the vacuum machine 22 until the vacuum degree in the furnace body 11 meets the standard. At this time, the partition plate 27 at the exhaust port 21 is pushed up again to seal the exhaust port 21, and then the partition plate 27 at the air inlet 23 is contracted to open the air inlet 23, and then nitrogen is filled into the furnace body 11 by the nitrogen filling machine 24. When the amount of nitrogen is sufficient, the partition plate 27 at the air inlet 23 is pushed up to close the air inlet 23 to achieve the sealing of the interior of the furnace body 11.

[0030] Specifically, the ventilation mechanism 2 also includes a ventilation chamber 28 arranged in the furnace cover 13, an air intake slot 29 is arranged in the middle of the ventilation chamber 28, and the air intake slot 29 connects the ventilation chamber 28 and the furnace body 11; a first motor 210 is installed in the middle of the upper end surface of the ventilation chamber 28, and a ventilation fan 211 is installed at the lower end of the first motor 210, and the ventilation fan 211 is located in the air intake slot 29; a plurality of through-going air outlet bayonet ports 212 are arranged on the periphery of the bottom surface of the ventilation chamber 28; a side edge of the upper port of the furnace body 11 is provided with a plurality of through-going air outlet bayonet ports 212; a plurality of through-going air outlet bayonet ports 212 are arranged on the side edge of the upper port of the furnace body 11; a plurality of through-going air outlet bayonet ports 212 are arranged on the periphery of the bottom surface of the ventilation chamber 28 ... The sealing card slot 213 corresponding to the furnace body 12 is provided with a vertical ventilation channel 214 at the lower end of the sealing card slot 213. The ventilation channel 214 is located in the side wall of the furnace body 11, and the lower end of the ventilation channel 214 is connected to the furnace body 11. During the tempering process, the ventilation fan 211 is driven to rotate by the first motor 210, so that the nitrogen in the furnace body 11 is sucked into the ventilation chamber 28, and then flows into the ventilation channel 214 through the air outlet port 212, and finally flows back into the furnace body 11, thereby forming a cycle and improving the use efficiency of nitrogen.

[0031] Specifically, the cooling mechanism 3 includes a cooling channel 31 which is arranged in a surrounding manner in the side wall of the furnace body 11, and the cooling channel 31 is located outside the ventilation channel 214; a water inlet interface 32 is arranged at the upper end of the cooling channel 31, and a water outlet interface 33 is arranged at the lower end of the cooling channel 31; the water inlet interface 32 and the water outlet interface 33 are both connected to an external water tank, and cooling liquid is introduced through the water inlet interface 32 and then flows out through the water outlet interface 33; the cooling channel 31 is arranged in the ventilation channel 214, and can quickly cool the nitrogen inside the furnace body 11 and circulating in the ventilation channel 214 at the same time, and the cooled nitrogen flows back into the furnace body 11, which can speed up the cooling speed.

[0032] Specifically, the rotating mechanism 4 includes a mounting plate 41 fixedly mounted at the lower end of the furnace body 11, and four supporting bosses 42 are arranged on the upper end surface of the mounting plate 41, and the four supporting bosses 42 are located at four vertices of the same circle; a second motor 43 is mounted below the mounting plate 41, and a driving gear 44 is mounted on the upper end of the second motor 43, and the driving gear 44 is located in the middle position of the upper end surface of the mounting plate 41; a driven gear 45 of the same specification is mounted on each of the four supporting bosses 42, and the four driven gears 45 are all meshed with the driving gear 44, and there is no direct contact between the four driven gears 45; a coaxial gear 45 is arranged on each of the upper ends of the four driven gears 45 A rotating shaft 46 of the same specification is provided, and a partition plate 47 is provided on the upper end of the passive gear 45. The partition plate 47 is fixedly installed in the furnace body 11, and the rotating shaft 46 penetrates the upper end of the partition plate 47; the driving gear 44 is driven to rotate by the second motor 43, and the driving gear 44 is meshed with the four passive gears 45 at the same time, which will drive the four passive gears 45 to rotate at the same time, and the passive gear 45 is supported and limited by the supporting boss 42, and the limiting effect of the rotating shaft 46 by the partition plate 47 can effectively prevent the passive gear 45 from deflecting and falling off; the partition plate 47 separates the heating space in the furnace body 11 from the space where the rotating mechanism 4 at the lower end is located.

[0033] Specifically, the clamping mechanism 5 includes a discharge base plate 51 coaxially installed on the upper end of the rotating shaft 46, a movable groove 52 is arranged in the discharge base plate 51, two guide grooves 53 are symmetrically arranged on the upper end surface of the discharge base plate 51, and the guide grooves 53 are connected to the movable groove 52; a limiting slide groove 54 is arranged in the middle position of the lower end of the movable groove 52, and two limiting guide grooves 55 are symmetrically arranged at both ends of the limiting slide groove 54.

[0034] Specifically, the clamping mechanism 5 also includes a third motor 56 fixedly mounted at the bottom of the limiting slide groove 54, the upper end of the third motor 56 is connected to a screw rod 57, the upper end of the screw rod 57 is sleeved in a movable sleeve 58, a hollow slide groove 59 is arranged inside the movable sleeve 58, an inner screw hole 510 is arranged at the lower end of the hollow slide groove 59, and the inner screw hole 510 is screwed with the screw rod 57; two limiting slide bolts 511 are symmetrically arranged on the outer side of the lower end of the movable sleeve 58, and the limiting slide bolts 511 are clamped in the limiting guide groove 55; the upper end of the screw rod 57 is sleeved in the movable sleeve 58, and the lower end of the hollow slide groove 59 is provided with an inner screw hole 510 screwed with the screw rod 57, and the limiting slide bolt 511 is clamped in the limiting guide groove 55, and the limiting guide groove 55 has a limiting effect on the movable sleeve 58, so when the third motor 56 drives the screw rod 57 to rotate, the movable sleeve 58 will slide up and down along the limiting slide groove 54.

[0035] Specifically, the clamping mechanism 5 also includes a sleeve bolt 512 fixed and coaxially arranged at the upper end of the movable sleeve 58, a pressing plate 513 is arranged at the upper end of the sleeve bolt 512, a linkage sleeve 514 is sleeved in the sleeve bolt 512, two connecting heads are symmetrically arranged on both sides of the linkage sleeve 514, a movable connecting rod 515 is movably connected to the connecting head, and the other end of the movable connecting rod 515 is movably connected to the lower end of a slider 516, the slider 516 is clamped in the guide groove 53, and the upper end of the slider 516 is arranged at one end close to the center of the discharge bottom plate 51 A square chuck 517; the linkage sleeve 514 is sleeved in the sleeve bolt 512. When the movable sleeve 58 slides up and down along the limiting slide groove 54, the linkage sleeve 514 is also driven to move synchronously. When the linkage sleeve 514 moves downward, the movable connecting rod 515 drives the slider 516 to move toward the center of the discharge bottom plate 51, and the two square chucks 517 approach each other to clamp the material; similarly, when the linkage sleeve 514 moves upward, the two square chucks 517 move away from each other to facilitate material discharge.

[0036] Specifically, the stabilizing mechanism 6 includes a hydraulic box 61 installed in the furnace cover 13, the hydraulic box 61 is located at the upper end of the ventilation chamber 28, the lower end of the hydraulic box 61 is connected to two second telescopic rods 62, the second telescopic rods 62 pass through the ventilation chamber 28, and the lower ends of the second telescopic rods 62 extend outside the lower end of the furnace cover 13. The lower ends of the two second telescopic rods 62 are simultaneously connected to both ends of an annular mounting plate 63, and four limiting sleeves 64 are arranged at the lower end of the annular mounting plate 63. The limiting sleeves 64 correspond to the position of the discharge bottom plate 51; the lower end of the limiting sleeve 64 is sleeved with a limiting protrusion 65, and the lower end of the limiting protrusion 65 is fixed A top plate 66 is fixedly connected; after the material is placed, the furnace cover 13 is adjusted to a horizontal state, and the furnace cover 13 is driven to engage with the furnace body 11 through the first telescopic rod 16, and then the second telescopic rod 62 is driven to extend through the hydraulic box 61, so that the annular mounting plate 63 moves downward until the top plate 66 contacts the upper end of the material. When the passive gear 45 drives the discharge bottom plate 51 to rotate synchronously, because the limiting protrusion 65 is movably installed in the limiting sleeve 64, the top plate 66 will rotate with the material, and the top plate 66 contacts the material, which can prevent the material from tilting and shaking during rotation.

[0037] When the present invention is in use, the first telescopic rod 16 is activated to extend, the furnace cover 13 is moved upward and separated from the furnace body 11, and the furnace cover 13 is rotated 90 degrees with the rotating support rod 14 as a fulcrum to be in a vertical state.

[0038] Place one end of the tubular or strip material vertically at the center of a discharge bottom plate 51, keep the material in a vertical state, start the third motor 56, drive the screw 57 to rotate, the upper end of the screw 57 is sleeved in the movable sleeve 58, and the lower end of the hollow slide 59 is provided with an inner screw 510 screwed to the screw 57, and at the same time, the limiting slide bolt 511 is clamped in the limiting guide groove 55, and the limiting guide groove 55 has a limiting effect on the movable sleeve 58, the movable sleeve 58 slides downward along the limiting guide groove 55, the linkage sleeve 514 drives the slider 516 to move toward the center of the discharge bottom plate 51 through the movable connecting rod 515, and the two square clamps 517 are close to each other, so that the material can be clamped; place the materials in sequence.

[0039] The furnace cover 13 is rotated ninety degrees with the rotating support rod 14 as the fulcrum to restore it to a horizontal state, and the first telescopic rod 16 is driven to retract until the furnace cover 13 is completely engaged with the furnace body 11, and the sealing flange 17 is engaged with the upper end of the furnace body 11 to seal the furnace body 11; at the same time, the air outlet bayonet 212 on the furnace cover 13 is engaged with the sealing slot 213 on the furnace body 11; then the second telescopic rod 62 is driven to extend through the hydraulic box 61, so that the annular mounting plate 63 moves downward until the top plate 66 contacts the upper end of the material. When the passive gear 45 drives the discharge bottom plate 51 to rotate synchronously, because the limit protrusion 65 is movably installed in the limit sleeve 64, the top plate 66 will rotate with the material, and the top plate 66 contacts the material, which can prevent the material from tilting and shaking during rotation.

[0040] The hydraulic rod 26 is driven to push up the partition plate 27 at the air inlet 23 to seal the partition cavity 25 at the air inlet 23, and the partition plate 27 at the exhaust port 21 is contracted to open the exhaust port 21, and the interior of the furnace body 11 is evacuated by the vacuum machine 22 until the vacuum degree in the furnace body 11 reaches the standard. At this time, the partition plate 27 at the exhaust port 21 is pushed up again to seal the exhaust port 21, and then the partition plate 27 at the air inlet 23 is contracted to open the air inlet 23, and then the interior of the furnace body 11 is filled with nitrogen by the nitrogen filling machine 24. When the amount of nitrogen is sufficient, the partition plate 27 at the air inlet 23 is pushed up to close the air inlet 23 to achieve the sealing of the interior of the furnace body 11.

[0041] The electric heating wire 12 is energized to heat the material in the furnace body 11. At the same time, the second motor 43 is started to drive the driving gear 44 to rotate. The driving gear 44 is meshed with the four passive gears 45 at the same time, which will drive the four passive gears 45 to rotate at the same time. The passive gear 45 drives the discharge bottom plate 51 to rotate synchronously through the rotating shaft 46, that is, drives the material to rotate, that is, the material rotates at a uniform speed in place to ensure that all surfaces of the material are heated evenly; and when the electric heating wire 12 starts to heat, the first motor 210 is started to drive the ventilation fan 211 to rotate, so that the nitrogen in the furnace body 11 is sucked into the ventilation chamber 28, and then flows into the ventilation channel 214 through the air outlet bayonet 212, and finally flows back into the furnace body 11, thereby forming a cycle.

[0042] When it is detected that the tempering is completed, the electric heating wire 12 is powered off, the heating is stopped, and the cooling liquid is introduced through the water inlet interface 32 and then flows out through the water outlet interface 33; the cooling channel 31 is arranged in the ventilation channel 214, so that the nitrogen inside the furnace body 11 and the nitrogen flowing in the ventilation channel 214 can be quickly cooled at the same time, and the cooled nitrogen flows back into the furnace body 11, which can accelerate the cooling speed; after the cooling is completed, the water supply is stopped, the ventilation fan 211 and the driving gear 44 are stopped from rotating, and the furnace cover is opened. After the nitrogen in the furnace body 11 is dissipated and the air flows back, the third motor 56 is started to rotate in the reverse direction to cause the square chuck 517 to separate, and the material can be taken out.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vacuum tempering furnace for magnesium fluoride material processing, comprising a heating mechanism (1), a ventilation mechanism (2), a cooling mechanism (3), a rotating mechanism (4), a clamping mechanism (5) and a stabilizing mechanism (6); characterized in that: The ventilation mechanism (2) and the cooling mechanism (3) are both arranged in the side wall of the heating mechanism (1), the cooling mechanism (3) is located outside the ventilation mechanism (2), and the rotating mechanism (4) is installed at the bottom end inside the heating mechanism (1); the clamping mechanism (5) is fixedly installed on the rotating mechanism (4), and the stabilizing mechanism (6) is installed at the upper end inside the heating mechanism (1); The heating mechanism (1) comprises a barrel-shaped furnace body (11), and an annular electric heating wire (12) is installed on the inner wall of the furnace body (11); a furnace cover (13) is arranged at the upper end of the furnace body (11), a handle is arranged on one side of the furnace cover (13), and a rotating support rod (14) is arranged on the other side of the furnace cover (13), and the rotating support rod (14) is rotatably installed in a mounting block (15), and the lower end of the mounting block (15) is fixedly installed on the upper end of a first telescopic rod (16), and the first telescopic rod (16) is fixedly installed on the outer wall of the upper end of the furnace body (11); a circle of sealing flange (17) is arranged at the lower end of the furnace cover (13), and the sealing flange (17) is adapted to the upper end of the furnace body (11); The stabilizing mechanism (6) comprises a hydraulic box (61) installed in the furnace cover (13), the hydraulic box (61) is located at the upper end of the ventilation chamber (28), the lower end of the hydraulic box (61) is connected to two second telescopic rods (62), the second telescopic rods (62) pass through the ventilation chamber (28), the lower ends of the second telescopic rods (62) extend outside the lower end of the furnace cover (13), the lower ends of the two second telescopic rods (62) are simultaneously connected to two ends of an annular mounting plate (63), the lower end of the annular mounting plate (63) is provided with four limiting sleeves (64), the limiting sleeves (64) correspond to the position of the discharge bottom plate (51); the lower end of the limiting sleeve (64) is sleeved with a limiting protrusion (65), and the lower end of the limiting protrusion (65) is fixedly connected to a top plate (66); The ventilation mechanism (2) comprises an exhaust port (21) arranged on the side wall of the furnace body (11), and the exhaust port (21) is sealedly connected to an external vacuum machine (22); an air inlet (23) is also arranged on the side wall of the furnace body (11), and the air inlet (23) is sealedly connected to an external nitrogen filling machine (24); a partition cavity (25) is vertically arranged between the exhaust port (21) and the air inlet (23), a hydraulic rod (26) is installed at the bottom of the partition cavity (25), and a partition plate (27) is fixedly connected to the upper end of the hydraulic rod (26), and the diameter of the partition plate (27) is larger than the diameter of the air inlet (23) and the exhaust port (21); The ventilation mechanism (2) further comprises a ventilation chamber (28) arranged in the furnace cover (13); an air intake slot (29) is arranged in the middle of the ventilation chamber (28); the air intake slot (29) connects the ventilation chamber (28) and the furnace body (11); a first motor (210) is installed in the middle of the upper end surface of the ventilation chamber (28); a ventilation fan (211) is installed at the lower end of the first motor (210); the ventilation fan (211) is located at the middle of the air intake slot (29); The air passage groove (29) is provided with a plurality of through-going air outlet bayonet holes (212) on the circumference of the bottom surface of the ventilation cavity (28); a sealing bayonet hole (213) corresponding to the air outlet bayonet hole (212) is provided on the side edge of the upper port of the furnace body (11); a vertical ventilation channel (214) is provided at the lower end of the sealing bayonet hole (213); the ventilation channel (214) is located in the side wall of the furnace body (11); and the lower end of the ventilation channel (214) is connected to the furnace body (11); The cooling mechanism (3) comprises a cooling channel (31) arranged in a surrounding manner in the side wall of the furnace body (11), and the cooling channel (31) is located outside the ventilation channel (214); a water inlet interface (32) is arranged at the upper end of the cooling channel (31), and a water outlet interface (33) is arranged at the lower end of the cooling channel (31); The rotating mechanism (4) comprises a mounting plate (41) fixedly arranged at the lower end of the furnace body (11); the upper end surface of the mounting plate (41) is provided with four supporting bosses (42), and the four supporting bosses (42) are located at four vertices of the same circle; a second motor (43) is installed below the mounting plate (41), a driving gear (44) is installed at the upper end of the second motor (43), and the driving gear (44) is located in the middle position of the upper end surface of the mounting plate (41); the four supporting bosses ( 42), each of which is provided with a driven gear (45) of the same specification, the four driven gears (45) are all meshed with the driving gear (44), and there is no direct contact between the four driven gears (45); a rotating shaft (46) of the same specification is coaxially arranged at the upper end of each of the four driven gears (45), and a partition plate (47) is arranged at the upper end of each of the driven gears (45), the partition plate (47) is fixedly installed in the furnace body (11), and the rotating shaft (46) penetrates the upper end of the partition plate (47); The clamping mechanism (5) comprises a material discharging bottom plate (51) coaxially mounted on the upper end of the rotating shaft (46); a movable groove (52) is arranged in the material discharging bottom plate (51); two guide grooves (53) are symmetrically arranged on the upper end surface of the material discharging bottom plate (51); the guide grooves (53) are connected to the movable groove (52); a limiting slide groove (54) is arranged at the middle position of the lower end of the movable groove (52); two limiting guide grooves (55) are symmetrically arranged at both ends of the limiting slide groove (54); The clamping mechanism (5) further comprises a third motor (56) fixedly mounted at the bottom of the limiting slide groove (54); the upper end of the third motor (56) is connected to a screw rod (57); the upper end of the screw rod (57) is sleeved in a movable sleeve (58); a hollow slide groove (59) is arranged inside the movable sleeve (58); an inner screw opening (510) is arranged at the lower end of the hollow slide groove (59); the inner screw opening (510) is screwed to the screw rod (57); two limiting slide bolts (511) are symmetrically arranged on the outer side of the lower end of the movable sleeve (58); the limiting slide bolts (511) are clamped in the limiting guide groove (55); The clamping mechanism (5) further comprises a sleeve bolt (512) fixed and coaxially arranged at the upper end of the movable sleeve (58), a pressing plate (513) being arranged at the upper end of the sleeve bolt (512), a linkage sleeve (514) being sleeved in the sleeve bolt (512), two connecting heads being symmetrically arranged at both sides of the linkage sleeve (514), a movable connecting rod (515) being movably connected to the connecting heads, the other end of the movable connecting rod (515) being movably connected to the lower end of a slider (516), the slider (516) being clamped in the guide groove (53), and a square clamp (517) being arranged at one end of the upper end of the slider (516) close to the center of the material discharge bottom plate (51).

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