CN114293136A - Workpiece heat treatment system - Google Patents
Workpiece heat treatment system Download PDFInfo
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- CN114293136A CN114293136A CN202111671856.8A CN202111671856A CN114293136A CN 114293136 A CN114293136 A CN 114293136A CN 202111671856 A CN202111671856 A CN 202111671856A CN 114293136 A CN114293136 A CN 114293136A
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- 238000010438 heat treatment Methods 0.000 title abstract description 53
- 238000010791 quenching Methods 0.000 claims abstract description 138
- 230000000171 quenching effect Effects 0.000 claims abstract description 137
- 230000007246 mechanism Effects 0.000 claims abstract description 132
- 238000005255 carburizing Methods 0.000 claims abstract description 99
- 239000000463 material Substances 0.000 claims abstract description 33
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 27
- 238000005496 tempering Methods 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 23
- 230000007723 transport mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 37
- 230000008569 process Effects 0.000 abstract description 33
- 230000000694 effects Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052572 stoneware Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to the technical field of heat treatment systems, and particularly discloses a workpiece heat treatment system which comprises a carburizing and quenching line, wherein the carburizing and quenching line comprises a carburizing mechanism and a quenching mechanism, the carburizing mechanism comprises a plurality of carburizing furnaces, and the quenching mechanism is used for feeding and discharging materials to the plurality of carburizing furnaces. By adopting the technical scheme provided by the invention, the problems that the total time consumption for completing the heat treatment process of a plurality of workpieces is longer and the overall processing efficiency is not improved in the prior art can be solved. The scheme is mainly used for carrying out heat treatment on the workpiece.
Description
Technical Field
The invention relates to the technical field of heat treatment systems, in particular to a workpiece heat treatment system.
Background
The heat treatment refers to a metal processing technique in which materials are heated, kept warm, and cooled in a solid state to obtain desired structures and properties, and the role of the heat treatment is gradually recognized in the process of moving from the stoneware era to the cupreous and ironware era. Heat treatment of metals is one of the important processes in mechanical manufacturing, and heat treatment generally does not change the shape and overall chemical composition of the workpiece, but imparts or improves the performance properties of the workpiece by changing the microstructure inside the workpiece, or changing the chemical composition of the surface of the workpiece, as compared to other machining processes.
Referring to a heat treatment process of an automobile universal joint cross, the heat treatment process has the Chinese patent application number of CN201710817309.3, increases the cooling speed by increasing the temperature of carburization and quenching and the carbon potential, and increases the hardenability of the cross by introducing ammonia gas at the continuous stage of the quenching temperature, thereby improving the performance of the automobile universal joint cross. This patent is at the heat treatment in-process, directly carries out the carburizing and quenching with the automobile universal joint cross, and this kind of mode can not obtain a stable metallographic structure and grain size assurance during making the carburization, and the cross tissue produces deformation easily, still leads to the martensite thick at last easily, and the cross quality is relatively poor.
In order to solve the problems, the invention patent with the application publication number of CN111719041A discloses a heat treatment system and a heat treatment method for an automobile universal joint cross shaft, and the heat treatment system comprises a feeding mechanism, a normalizing mechanism, a conveying mechanism, a carburizing and quenching mechanism and a tempering mechanism, wherein the normalizing mechanism comprises a normalizing furnace, the front surface of the normalizing furnace is hinged with a box door, two sides of the inner wall of the normalizing furnace are fixedly connected with heating wires, the workpiece is normalized before carburizing and quenching, a stable metallographic structure and a grain size guarantee are provided for carburizing, the structure is ensured not to be excessively changed during carburizing, the deformation during carburizing is smaller, the martensite is uniformly refined, and the processing quality of the workpiece is improved. However, the carburizing and quenching mechanism in the heat treatment system of the invention needs to sequentially perform carburizing treatment and quenching treatment on the workpiece, and because the time consumption of single carburizing treatment is long, the total time consumption for completing the heat treatment process of a plurality of workpieces is also long, which is not beneficial to improving the overall processing efficiency of the workpieces.
Disclosure of Invention
The invention aims to provide a workpiece heat treatment system to solve the problems that the total time consumption for completing the heat treatment process of a plurality of workpieces is long and the overall processing efficiency is not improved in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a work piece heat treatment system, includes the carburization quenching line, and the carburization quenching line includes carburization mechanism and quenching mechanism, and carburization mechanism includes a plurality of carburizing furnace, and quenching mechanism is used for going on unloading to a plurality of carburizing furnace.
Technical principle and beneficial effect compared with the prior art:
the technical scheme is adopted to carry out heat treatment on the workpieces, a certain number of workpieces are fed into the quenching mechanism, the number of the workpieces processed by one carburizing furnace and the number of the workpieces processed by one quenching mechanism are reduced, then the quenching mechanism moves to one carburizing furnace to feed the carburizing furnace, the workpieces are carburized after being fed by the carburizing furnace, the steps are repeated until the quenching mechanism finishes feeding all the carburizing furnaces, and all the carburizing furnaces enter a state of carburizing the workpieces. At the moment, the quenching mechanism does not quench the workpiece, only is equivalent to the conveying mechanism sequentially feeding the carburizing furnaces, and all the carburizing furnaces do not complete the carburizing treatment process of the workpiece in the process of feeding the carburizing furnaces by the quenching mechanism because the carburizing treatment process of the workpiece consumes a long time.
When the carburizing process of one carburizing furnace on the workpiece is completed, the quenching mechanism moves to the carburizing furnace to discharge the carburizing furnace, the carburized workpiece is transferred to the quenching mechanism, and the quenching mechanism starts quenching the workpiece. When the quenching mechanism carries out quenching treatment on the workpiece, the quenching mechanism moves towards the blanking position, and when the quenching treatment process of the workpiece is finished by the quenching mechanism, the workpiece is blanked, and at the moment, the workpiece is sequentially subjected to a carburizing treatment process and a quenching treatment process. And repeating the steps until the quenching mechanism finishes blanking on all the carburizing furnaces, and quenching all the carburized workpieces by the quenching mechanism. Because the time consumption of the quenching treatment process of the workpiece is shorter than that of the carburizing treatment process of the workpiece, after the quenching mechanism carries out blanking on one carburizing furnace, if the other carburizing furnaces do not complete the carburizing treatment process, the quenching mechanism can firstly carry out a new round of feeding on the carburizing furnace.
Compared with the prior art, the workpiece heat treatment system comprises: the workpiece heat treatment system is used for carrying out multi-batch short-interval continuous carburizing treatment and quenching treatment on a plurality of workpieces, the total consumption of heat treatment procedures on the plurality of workpieces is obviously shortened, and the overall processing efficiency of the plurality of workpieces is effectively improved.
Further, the quenching mechanism comprises a rail and a quenching furnace arranged on the rail and moving along the rail, the carburizing furnaces are arranged on the same side of the rail, and a first clamping device used for feeding and discharging materials is arranged in the quenching furnace.
Has the advantages that: by adopting the scheme, the track is arranged, the quenching furnace is arranged on the track and moves along the track, so that the moving route of the quenching furnace is more definite, and the feeding and discharging interval time of the quenching furnace to each carburizing furnace is accurately controlled; the plurality of carburizing furnaces are arranged on the same side of the track, so that the quenching furnace can be used for loading and unloading all the carburizing furnaces only by translating along the track, the quenching furnace is not required to be arranged into a structure capable of rotating on the track, the structure of the whole system is simplified, the loading and unloading operation of the quenching furnace on the carburizing furnaces is faster, and the processing efficiency is improved; the first clamping device is arranged in the quenching furnace, so that the quenching furnace can be charged and discharged through the first clamping device, the carburizing furnace can be charged and discharged through the first clamping device, the charging and discharging device is not arranged in each carburizing furnace, and the structure of the system is simplified.
Further, the first clamping device comprises a cylinder fixedly connected to the outer wall of the quenching furnace, an output shaft of the cylinder is fixedly connected with a telescopic rod, the telescopic rod extends into the quenching furnace, and one end of the telescopic rod extending into the quenching furnace is fixedly connected with a pneumatic finger.
Has the advantages that: when the quenching furnace is loaded, firstly, the air cylinder is started, the air cylinder drives the telescopic rod to extend to enable the pneumatic finger to extend out of the quenching furnace through a furnace door of the quenching furnace, the pneumatic finger is opened in the process of extending out of the quenching furnace until the pneumatic finger reaches a workpiece and is folded to clamp the workpiece, then the air cylinder drives the telescopic rod to shorten to enable the pneumatic finger to be retracted into the quenching furnace through the furnace door of the quenching furnace, at the moment, the workpiece is clamped and moved into the quenching furnace by the pneumatic finger, and then the pneumatic finger is opened to place the workpiece in the quenching furnace to complete loading; when the quenching furnace is blanked, the air cylinder is started firstly, the air cylinder drives the telescopic rod to extend to move the pneumatic finger to the position of the workpiece in the quenching furnace, the pneumatic finger is opened in the moving process and closed after contacting the workpiece to clamp the workpiece, and the air cylinder continues to drive the telescopic rod to extend until the pneumatic finger moves the workpiece to the carburizing furnace through clamping of the furnace door or the workpiece storage position to complete blanking. By adopting the scheme, the quenching furnace is charged and discharged, the structure is simple and easy to realize, and the working efficiency is high.
Further, the device also comprises a preheating tempering line, wherein the preheating tempering line comprises a carrying mechanism, and a preheating furnace and a tempering furnace are arranged on a moving route of the carrying mechanism.
Has the advantages that: the workpiece is moved into a preheating furnace for preheating through a conveying mechanism, the workpiece is moved into a quenching mechanism of a carburizing and quenching line through the conveying mechanism after preheating is finished, the workpiece is fed through the quenching mechanism, then the workpiece after carburizing treatment in the carburizing mechanism is fed through the quenching mechanism and is quenched, the workpiece is moved to the conveying mechanism after quenching treatment is carried out on the workpiece through the quenching mechanism, then the workpiece after preheating treatment, carburizing treatment and quenching treatment is moved into a tempering furnace through the conveying mechanism for tempering treatment, and finally the workpiece after treatment in the tempering furnace is moved to a storage position through the conveying mechanism for storage, so that the whole heat treatment process of the workpiece is finished. This scheme of adoption still sets up the preheating tempering line including preheater and tempering furnace outside the carburization quenching line, brings preheating treatment and tempering into whole heat treatment process flow, can optimize the effect that this system carries out heat treatment to the work piece.
Further, still be equipped with belt cleaning device and drying device on transport mechanism's the route that moves, and belt cleaning device and drying device set up the both sides at transport mechanism movement route relatively.
Has the advantages that: the conveying mechanism firstly moves the workpiece into the cleaning device for cleaning, then moves the workpiece into the drying device for drying after cleaning, the workpiece after drying is sequentially subjected to preheating treatment, carburizing treatment, quenching treatment and tempering treatment, then is moved into the cleaning device for cleaning by the conveying mechanism, and then is moved into the drying device for drying by the conveying mechanism after cleaning, thereby obtaining the finished workpiece. By adopting the scheme, the cleaning device and the drying device are added in the preheating line to clean and dry the workpiece before heat treatment, so that impurities stained in the previous processing step of the workpiece are removed, the smoothness of the workpiece before heat treatment is improved, and the heat treatment effect of the workpiece is optimized; and cleaning and drying the workpiece subjected to heat treatment, and removing oil stains stained on the workpiece in the heat treatment process to form a clean and tidy finished workpiece. The cleaning device and the drying device are oppositely arranged at two sides of the moving route of the re-conveying mechanism, so that cleaned workpieces can be directly transferred into the drying device through the conveying mechanism without the conveying mechanism moving, and the phenomenon that cleaning liquid drops fall on the moving route of the conveying mechanism in the process that the cleaned and undried workpieces move along with the conveying mechanism, and the operation of the conveying mechanism is influenced is avoided.
Further, still be equipped with material feeding unit on the route that moves of transport mechanism, material feeding unit's output is equipped with lifting mechanism, and lifting mechanism's lifting height is unanimous with transport mechanism's height.
Has the advantages that: the workpiece is placed at the input end of the feeding device, conveyed to the lifting mechanism through the feeding device, and lifted to the carrying mechanism with the lifting height consistent with that of the workpiece by the lifting mechanism, so that the carrying mechanism is loaded. By adopting the scheme, the height of the feeding device can be designed to be a lower structure, the workpiece can be conveniently fed onto the feeding device, after the workpiece is conveyed to the lifting mechanism by the feeding device, the workpiece is lifted to the high carrying mechanism by the lifting mechanism, and other equipment with a higher feeding hole and a higher discharging hole, such as a quenching mechanism, can be fed through the carrying mechanism, so that the convenience of feeding the whole system can be effectively improved.
Further, the carrying mechanism comprises a transport trolley, a rotary table is rotatably connected to the transport trolley, a mounting plate is fixedly connected to the rotary table, and a second clamping device used for loading and unloading is arranged on the mounting plate.
Has the advantages that: by adopting the scheme, the moving route of the transport trolley is clear, so that the arrangement of a plurality of devices along the moving route of the carrying mechanism is facilitated, and the transport trolley is favorable for accurately loading and unloading the plurality of devices; when realizing the last unloading to numerous equipment through the travelling bogie, rotate the equipment that unloading was treated to the second clamping device face that the carousel set up on until the mounting panel earlier, rethread second clamping device feeds to the equipment in with the work piece on the travelling bogie, perhaps feed to the dolly through the work piece of second clamping device in with the equipment on, then no matter which one side that this equipment is located the travelling bogie, the material loading operation or the unloading operation of this equipment can be realized to the second clamping device homoenergetic, increased each equipment of this work piece heat treatment system and carried out the possibility that the position was arranged according to actual need, thereby improve the practicality of this system.
Further, preheat the return line and carburization quenching line parallel arrangement, and preheat and be equipped with transport mechanism between return line and the carburization quenching line.
Has the advantages that: the conveying mechanism moves the cleaned, dried and preheated workpieces to the conveying mechanism, the conveying mechanism conveys the workpieces to the quenching mechanism, the carburizing mechanism and the quenching mechanism sequentially perform carburizing and quenching treatment on the workpieces, the carburized and quenched workpieces are transferred to the conveying mechanism from the quenching mechanism and conveyed into the conveying mechanism, and then the workpieces are tempered, cleaned and dried, so that finished workpieces are obtained. This scheme of adoption will preheat the return line and carburization quenching line parallel arrangement, will preheat return line and carburization quenching line intercommunication through transport mechanism for the overall arrangement of preheating the return line and carburization quenching line is more reasonable, reduces whole work piece heat treatment system's area.
Further, the number of the conveying mechanisms is two, and the conveying directions of the two conveying mechanisms are opposite.
Has the advantages that: by adopting the scheme, the number of the conveying mechanisms is set to be two, and the conveying directions of the two conveying mechanisms are reversely set, so that the workpieces in the conveying mechanism can be conveyed to the quenching mechanism through one conveying mechanism, and meanwhile, the workpieces in the quenching mechanism can be conveyed to the conveying mechanism through the other conveying mechanism, the workpiece heat treatment system is favorable for realizing the function of simultaneously carrying out heat treatment on multiple batches of workpieces, the heat treatment efficiency of the multiple workpieces is improved, and the total time consumption of the multiple workpieces for completing the heat treatment process is shortened.
Further, still include a plurality of workbins, a plurality of workbins set up on material feeding unit.
Has the advantages that: according to the scheme, the plurality of material boxes are arranged on the feeding device, a certain number of workpieces are placed in each material box, the workpieces in a certain number refer to the minimum value of the number of the workpieces which can be processed by each device in the system at one time, the workpieces are loaded and unloaded together through the material boxes, long-time waste caused by one-by-one loading or one-by-one unloading of the workpieces is avoided, and the efficiency of the whole heat treatment process is improved.
Drawings
FIG. 1 is a schematic diagram of an overall configuration of an embodiment of a system for heat treating a workpiece according to the present invention.
Fig. 2 is a schematic structural diagram of a quenching furnace in an embodiment of a workpiece heat treatment system according to the invention.
FIG. 3 is a schematic top view of a first clamping device in an embodiment of a workpiece thermal processing system according to the invention.
FIG. 4 is a schematic perspective view of a rail transportation cart in an embodiment of a heat treatment system for workpieces according to the present invention.
FIG. 5 is a schematic front view of a rail transportation cart according to an embodiment of the present invention
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a first rail 1, a quenching furnace 2, a first cylinder 21, a first telescopic rod 22, a first pneumatic finger 23, a carburizing furnace 3, a conveying mechanism 4, a first chain wheel conveyor 41, a second chain wheel conveyor 42, a second rail 5, a rail conveying trolley 6, a motor 61, a turntable 62, a mounting plate 63, a second cylinder 64, a second telescopic rod 65, a second pneumatic finger 66, a first roll shaft feeder 7, a first lifting mechanism 8, a cleaning machine 9, a drying machine 10, a preheating furnace 11, a tempering furnace 12, a second roll shaft feeder 13, a second lifting mechanism 14, a damper 15 and a material box 16.
Examples are shown in figures 1 to 5:
as shown in fig. 1, a workpiece heat treatment system comprises a first rail 1 laid along a straight line, a quenching furnace 2 is mounted on the first rail 1, a furnace door of the quenching furnace 2 faces left, a first roller is mounted at the bottom of the quenching furnace 2, and the quenching furnace 2 moves on the first rail 1 through the first roller and the first rail 1 in a matching manner. The left side of the first track 1 is sequentially provided with a first carburizing furnace, a second carburizing furnace and a third carburizing furnace which are three carburizing furnaces 3 from bottom to top, the furnace doors of the first carburizing furnace, the second carburizing furnace and the third carburizing furnace face the first track 1, and the furnace doors of the first carburizing furnace, the second carburizing furnace and the third carburizing furnace are the same as the furnace door of the quenching furnace 2 in height. Both ends of the first rail 1 are fixedly provided with dampers 15, and the dampers 15 are used for contacting the quenching furnace 2 to limit the farthest moving distance of the quenching furnace 2 on the first rail 1.
As shown in fig. 2 and 3, a first clamping device is installed in the quenching furnace 2, the first clamping device includes a first cylinder 21 fixedly connected to the outer wall of the quenching furnace 2, the output end of the first cylinder 21 is aligned to the furnace door of the quenching furnace 2, a first telescopic rod 22 is fixedly connected to the output shaft of the first cylinder 21, the first telescopic rod 22 extends into the quenching furnace 2 relative to the other end fixedly connected to the first cylinder 21, and a first pneumatic finger 23 is fixedly connected to one end of the first telescopic rod 22 extending into the quenching furnace 2, and the clamping direction of the first pneumatic finger 23 is along the horizontal direction.
As shown in fig. 1, a second rail 5 is laid on the left side of the first rail 1 along a straight line, and the second rail 5 and the first rail 1 are parallel to each other. And a rail conveying trolley 6 is arranged on the second rail 5, a second roller is arranged at the bottom of the rail conveying trolley 6, and the rail conveying trolley 6 moves on the second rail 5 through the cooperation of the second roller and the second rail 5. A first roll feeder 7 is mounted at the upper end of the second rail 5, and the first roll feeder 7 is used for conveying a workpiece in a direction close to the second rail 5. Install first lifting mechanism 8 between first roller feeder 7 and the second track 5, the minimum elevation of first lifting mechanism 8 and the elevation phase-match of first roller feeder 7, the lifting height of first lifting mechanism 8 and the highly uniform of track transport dolly 6, first lifting mechanism 8 is used for carrying the work piece lifting to the track transport dolly 6 of output with first roller feeder 7. And a cleaning machine 9 and a drying machine 10 are oppositely arranged at the left side and the right side of the second rail 5, the cleaning machine 9 is used for cleaning workpieces, and the drying machine 10 is used for drying the cleaned workpieces. The left side of the second rail 5 is also provided with a preheating furnace 11 and a tempering furnace 12 in sequence, the preheating furnace 11 is used for preheating the workpiece before carburizing and quenching treatment, the tempering furnace 12 is used for tempering the workpiece after carburizing and quenching treatment, and the preheating treatment process and the tempering treatment process are introduced into the workpiece heat treatment system, so that the treatment effect of the system on the workpiece is improved, and the quality of the final finished workpiece is improved. A second roller feeder 13 is mounted at the end of the second rail 5, and the second roller feeder 13 is used for conveying the workpiece in a direction away from the second rail 5. A second lifting mechanism 14 is installed between the second roller feeder 13 and the second track 5, the lowest elevation of the second lifting mechanism 14 is matched with the elevation of the second roller feeder 13, the highest elevation of the second lifting mechanism 14 is consistent with the height of the track conveying small side, and the second lifting mechanism 14 is used for placing a workpiece on the track conveying trolley 6 down onto the second roller feeder 13 for conveying.
As shown in fig. 4 and 5, the second clamping device is mounted on the rail transport trolley 6, the second clamping device includes a motor 61 fixedly connected to the rail transport trolley 6, a turntable 62 is coaxially and fixedly connected to an output shaft of the motor 61, the motor 61 drives the turntable 62 to rotate relative to the rail transport trolley 6, and the turntable 62 is located at a central position of the rail transport trolley 6. Fixedly connected with vertical mounting panel 63 on the carousel 62, fixedly connected with second cylinder 64 on the lateral wall of mounting panel 63, fixedly connected with second telescopic link 65 on the output shaft of second cylinder 64, second telescopic link 65 for its other end fixedly connected with second pneumatic finger 66 with second cylinder 64 rigid coupling, the clamping direction of second pneumatic finger 66 is along the horizontal direction.
As shown in fig. 1, a conveying mechanism 4 is installed between the first track 1 and the second track 5, the conveying mechanism 4 includes a first chain wheel machine and a second chain wheel machine, the conveying directions of the first chain wheel machine and the second chain wheel machine are opposite, and the conveying directions of the first chain wheel machine and the second chain wheel machine are perpendicular to the first track 1. The first sprocket transfers the work piece from the end near the second rail 5 toward the end near the first rail 1, and the second sprocket transfers the work piece from the end near the first rail 1 toward the end near the second rail 5. A plurality of bins 16 are also moved throughout the thermal processing system, the bins 16 being adapted to receive and load with workpieces therein a number of workpieces, the number of workpieces being the minimum of the number of workpieces that can be processed at most by each tool at a time. The width of the work bin 16 is not larger than the clamping width of the first pneumatic finger 23 and the second pneumatic finger 66, so that the first pneumatic finger 23 and the second pneumatic finger 66 can clamp the outer wall of the work bin 16 to load and unload workpieces.
The workpiece heat treatment system provided by the invention is used for carrying out heat treatment on workpieces, firstly, a material box 16 is taken, a certain number of workpieces to be treated are loaded in the material box 16, the certain number is the minimum value of the maximum number of the workpieces which can be treated by each device at one time in the system, then, the material box 16 loaded with the workpieces to be treated is placed on a first roll shaft feeder 7 for conveying, and the first roll shaft feeder 7 conveys the material box 16 loaded with the workpieces to be treated to a first lifting mechanism 8. The first lifting mechanism 8 is firstly at the same height of the first roll shaft feeder 7, and after the material box 16 to be filled with the workpieces to be processed is conveyed to the first roll shaft feeder 7, the first lifting mechanism 8 is lifted to be consistent with the height of the turntable 62 of the rail conveying trolley 6. At this time, the rail transport trolley 6 moves to the first lifting mechanism 8 along the second rail 5, the motor 61 starts to drive the rotating disc 62 to rotate relative to the rail transport trolley 6 until the second pneumatic finger 66 faces the first lifting mechanism 8, then the second air cylinder 64 starts to drive the second telescopic rod 65 to extend, the second telescopic rod 65 extends to drive the second pneumatic finger 66 to approach the first lifting mechanism 8, and the second pneumatic finger 66 opens in the process of approaching the first lifting mechanism 8 until the second pneumatic finger 66 contacts with the outer wall of the bin 16 and clamps the bin 16 therein. The second cylinder 64 then drives the second telescopic rod 65 to retract, which brings the second pneumatic finger 66 away from the first lifting mechanism 8, so that the magazine 16 together with the workpieces to be processed therein is clamped onto the turntable 62 of the rail trolley 6.
After the workpiece is clamped on the turntable 62, the rail transport trolley 6 moves along the second rail 5 until the rail transport trolley 6 reaches the cleaning machine 9, the motor 61 starts to drive the turntable 62 to rotate, when the second pneumatic finger 66 faces the cleaning machine 9, the second air cylinder 64 starts to drive the second telescopic rod 65 to push the work bin 16 into the cleaning machine 9, the cleaning machine 9 cleans the workpiece to be processed in the work bin 16, and after the cleaning is finished, the second pneumatic finger 66 clamps the work bin 16 on the turntable 62 again. Because the cleaning machine 9 and the drying machine 10 are relatively arranged on two sides of the second rail 5, the rail transport trolley 6 does not need to move at the moment, only the motor 61 drives the rotating disc 62 to rotate so that the second pneumatic finger 66 faces the drying machine 10, the second telescopic rod 65 can be driven by the second air cylinder 64 to push the material box 16 into the drying machine 10, the drying machine 10 performs drying treatment on the cleaned workpiece in the material box 16, and the material box 16 is clamped on the rotating disc 62 by the second pneumatic finger 66 after the drying is completed.
The rail transport trolley 6 continues to move along the second rail 5 until the rail transport trolley 6 reaches the preheating furnace 11, the motor 61 drives the turntable 62 to rotate so that the second clamping device faces the preheating furnace 11, then the second clamping device pushes the material box 16 into the preheating furnace 11, and the preheating furnace 11 performs preheating treatment on the workpiece. After the preheating process is completed, the second clamping device again clamps the magazine 16 to the turntable 62, and the rail transport trolley 6 is then moved to the transport mechanism 4. The motor 61 drives the turntable 62 to rotate so that the second gripper faces the first sprocket conveyor 41, the second gripper pushes the bin 16 onto the first sprocket conveyor 41, and the first sprocket conveyor 41 conveys the workpiece to the first rail 1 side. At this time, the oven door of the quenching furnace 2 is aligned to the output end of the first sprocket conveyor 41, the bin 16 stops conveying when reaching the output end of the first sprocket conveyor 41, the first clamping device fixedly connected to the inner wall of the quenching furnace 2 is started, the first cylinder 21 drives the first telescopic rod 22 to extend, the first telescopic rod 22 extends to drive the first pneumatic finger 23 to approach the first sprocket conveyor 41, and the first pneumatic finger 23 opens in the process of approaching the first sprocket conveyor 41 until the first pneumatic finger 23 contacts the outer wall of the bin 16 and clamps the bin 16 therein. Then the first cylinder 21 drives the first telescopic rod 22 to shorten, and the first telescopic rod 22 shortens to drive the first pneumatic finger 23 to keep away from the first chain wheel conveyor 41, so that the material box 16 is clamped in the quenching furnace 2, and the feeding of the workpiece in the quenching furnace 2 is realized. The quenching furnace 2 moves on the first track 1 until the quenching furnace 2 reaches the first carburizing furnace, the first clamping device is started to push the material box 16 into the first carburizing furnace so as to realize the feeding of the workpiece in the first carburizing furnace, and then the first carburizing furnace performs carburizing treatment on the workpiece.
And repeating the steps until the quenching furnace 2 finishes feeding all the carburizing furnaces 3, wherein in the process, the quenching furnace 2 does not carry out quenching treatment on the workpieces in the quenching furnace, and the quenching furnace 2 is just equivalent to a conveying device. Because the carburizing process is time-consuming, the carburizing treatment of the workpiece in the carburizing furnace one will be continuously performed before the charging operation of the quenching furnace 2 on all the carburizing furnaces 3 is completed.
When the carburizing furnace I finishes carburizing the workpieces in the carburizing furnace I, the quenching furnace 2 moves to the carburizing furnace I along the first rail 1, the first clamping device starts to clamp the material box 16 in the carburizing furnace I to the quenching furnace 2, and then the quenching furnace 2 moves to the second chain wheel conveyor 42 along the first rail 1. In the process that the quenching furnace 2 moves to the second sprocket conveyor 42 along the first rail 1, the quenching furnace 2 simultaneously performs quenching processing on the workpieces therein. After the quenching furnace 2 finishes quenching treatment on the workpieces in the quenching furnace, the first clamping device is started to push the material box 16 to the second chain wheel conveyor 42, the second chain wheel conveyor 42 drives the workpieces to the second rail 5 side, and at the moment, the rail conveying trolley 6 moves to the second chain wheel conveyor 42. When the workpieces are transferred to the output end of the second sprocket conveyor 42, the transfer is stopped, the second clamping device on the rail transport trolley 6 is started to clamp the bin 16 to the turntable 62, then the rail transport trolley 6 moves to the tempering furnace 12 along the second rail 5, and the second clamping device pushes the bin 16 into the tempering furnace 12 to realize the loading of the workpieces in the tempering furnace 12. After the tempering furnace 12 finishes processing the workpiece, the second clamping device clamps the material box 16 on the turntable 62, then the rail conveying trolley 6 moves to the cleaning machine 9, and the second clamping device pushes the material box 16 into the cleaning machine 9, so that the cleaning machine 9 cleans the workpiece. After the workpiece is cleaned, the second clamping device clamps the work bin 16 to the rotary table 62, the motor 61 drives the rotary table 62 to rotate, so that the second clamping device faces the dryer 10, and then the second clamping device pushes the work bin 16 into the dryer 10, so that the dryer 10 dries the workpiece. After being dried by the dryer 10, the workpiece is clamped on the turntable 62 by the second clamping device and then moved to the tail end of the second rail 5 by the rail conveying trolley 6 for blanking.
The rail conveying trolley 6 moves to the second lifting mechanism 14 along the second rail 5, the motor 61 drives the rotary table 62 to rotate, so that the second clamping device faces the second lifting mechanism 14, the height of the second lifting mechanism 14 is consistent with that of the rotary table 62, the second clamping device pushes the material box 16 onto the second lifting mechanism 14, then the height of the second lifting mechanism 14 is lowered until the material box is flush with the second roller feeder 13, and the material box 16 is conveyed by the second roller feeder 13 in a direction away from the second rail 5, so that the workpiece after the heat treatment is blanked.
And repeating the steps until the quenching furnace 2 sequentially quenches the workpieces carburized in the carburizing furnace 3, the workpieces subjected to carburization and quenching are conveyed to the second rail 5 by the conveying mechanism 4, the workpieces are conveyed by the rail conveying trolley 6 to be sequentially tempered, cleaned and dried, and finally the workpieces are discharged through the second lifting mechanism 14 and the second roller feeder 13. And finishing the heat treatment work of all the workpieces.
The workpiece heat treatment system is provided with the plurality of carburizing furnaces 3 for sequentially carburizing the workpieces in batches, the plurality of carburizing furnaces 3 are sequentially fed and discharged through the quenching mechanism which moves among the plurality of carburizing furnaces 3, and the workpiece which is carburized is quenched immediately after the carburizing furnace 3 is discharged by the quenching mechanism.
The layout of each device in the workpiece heat treatment system is reasonable, and the occupied area can be effectively saved.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, and these changes and modifications should be considered as the protection scope of the present invention, and these changes and modifications will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. A system for heat treating a workpiece, comprising: the device comprises a carburizing and quenching line, wherein the carburizing and quenching line comprises a carburizing mechanism and a quenching mechanism, the carburizing mechanism comprises a plurality of carburizing furnaces, and the quenching mechanism is used for feeding and discharging the plurality of carburizing furnaces.
2. The workpiece thermal processing system of claim 1, wherein: the quenching mechanism comprises a rail and a quenching furnace arranged on the rail and moving along the rail, a plurality of carburizing furnaces are arranged on the same side of the rail, and a first clamping device used for feeding and discharging materials is arranged in the quenching furnace.
3. A workpiece thermal processing system according to claim 2, wherein: the first clamping device comprises a cylinder fixedly connected to the outer wall of the quenching furnace, an output shaft of the cylinder is fixedly connected with a telescopic rod, the telescopic rod extends into the quenching furnace, and one end, extending into the quenching furnace, of the telescopic rod is fixedly connected with a pneumatic finger.
4. The workpiece thermal processing system of claim 1, wherein: the preheating tempering furnace is characterized by further comprising a preheating tempering line, the preheating tempering line comprises a carrying mechanism, and a preheating furnace and a tempering furnace are arranged on a moving route of the carrying mechanism.
5. The workpiece thermal processing system of claim 4, wherein: the conveying mechanism is characterized in that a cleaning device and a drying device are further arranged on the moving path of the conveying mechanism, and the cleaning device and the drying device are oppositely arranged on two sides of the moving path of the conveying mechanism.
6. The workpiece thermal processing system of claim 5, wherein: still be equipped with material feeding unit on the route is moved to transport mechanism, material feeding unit's output is equipped with lifting mechanism, and lifting mechanism's lifting height is unanimous with transport mechanism's height.
7. The workpiece thermal processing system of claim 6, wherein: the carrying mechanism comprises a transport trolley, a rotary table is rotatably connected to the transport trolley, a mounting plate is fixedly connected to the rotary table, and a second clamping device used for loading and unloading is arranged on the mounting plate.
8. The workpiece thermal processing system of claim 4, wherein: the preheating tempering line and the carburizing and quenching line are arranged in parallel, and a conveying mechanism is arranged between the preheating tempering line and the carburizing and quenching line.
9. The workpiece thermal processing system of claim 8, wherein: the number of the conveying mechanisms is two, and the conveying directions of the two conveying mechanisms are opposite.
10. The workpiece thermal processing system of claim 6, wherein: the feeding device also comprises a plurality of material boxes which are arranged on the feeding device.
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| CN202111671856.8A CN114293136A (en) | 2021-12-31 | 2021-12-31 | Workpiece heat treatment system |
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| CN202111671856.8A CN114293136A (en) | 2021-12-31 | 2021-12-31 | Workpiece heat treatment system |
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| EP0829554A1 (en) * | 1996-09-16 | 1998-03-18 | ALD AICHELIN GesmbH. | Low pressure cementation apparatus with compartments disposed one behind the other |
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