Movable salt bath quenching equipment
By designing a mobile salt bath quenching equipment, using the combination of feeding devices, pallets and heating modules, the oxidation and decarbonization and temperature gradient problems of workpieces during transfer and heating are solved, and high-quality salt bath quenching treatment and water resource conservation are achieved.
Patent Information
- Application Number
- CN202510131941.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-04-22
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the existing salt bath quenching equipment transfers the heated metal workpiece, the workpiece will be oxidized and decarbonized due to exposure to air, resulting in a decrease in surface quality and a temperature gradient will be formed, causing the increase in thermal stress and tissue stress during quenching, which can easily lead to deformation and cracking of the workpiece.
A mobile salt bath quenching equipment is designed. Through the structures such as the loading device, pallet, heating module and base frame, the workpiece is seamlessly sent to the salt bath box for quenching after heating, avoiding air exposure and the formation of temperature gradients.
The workpiece is seamlessly fed into the salt bath box for quenching after heating, avoiding the problems of oxidation and decarbonization and temperature gradient, improving the surface quality and shape stability of the workpiece, and reducing the water change frequency of the cleaning box and saving water resources.
Smart Images
Figure CN119859734A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of high-performance metal processing, in particular to a mobile salt bath quenching device. Background Art
[0002] Salt bath quenching is a method of using molten salt liquid as a heating medium and immersing metal workpieces in the salt liquid for heating and quenching. In this way, bainite + martensite structure can be obtained to improve the toughness and wear resistance of the product, thereby obtaining high-performance metal workpieces. In the process of salt bath quenching, the workpiece is usually heated by a heating device, then placed in a salt liquid for a salt bath, and finally cleaned to achieve salt bath quenching of the workpiece.
[0003] In the conventional salt bath quenching process, the workpiece is first heated in the heat treatment equipment and then moved to the salt solution for salt bath. However, the workpiece is exposed to the air for a long time during the transfer process and is easily reacted with oxygen, causing oxidation decarburization, resulting in surface quality damage. At the same time, the workpiece surface quickly dissipates heat due to contact with the air, while the internal temperature is still high, forming a significant temperature gradient, which will produce large thermal stress and tissue stress during quenching, making the workpiece easy to deform and crack. In addition, if the workpiece is directly cleaned after the salt bath, the large amount of salt solution remaining on its surface will cause the salt content of the water in the cleaning box to rise rapidly, thereby increasing the frequency of water replacement in the cleaning box and causing waste of water resources. Therefore, according to the above problems, a mobile salt bath quenching equipment is proposed. Summary of the invention
[0004] The purpose of the present invention is to provide a mobile salt bath quenching equipment to solve the problem that when the existing salt bath quenching equipment transfers the heated metal workpiece, the workpiece will be oxidized and decarburized due to exposure to air, resulting in a decrease in surface quality, and a temperature gradient will be formed, causing the increase of thermal stress and structural stress during quenching, which is easy to cause deformation and cracking of the workpiece.
[0005] To achieve the above object, the present invention provides the following technical solutions: A mobile salt bath quenching equipment, comprising a base frame, a lifting device, a tray for holding workpieces, a tray frame module, a heating module for heating the workpieces, a lifting device, a lifting rack, a transfer device, a gas transmission module and a temperature sensor, wherein the base frame comprises a loading rack, the right side of the loading rack is fixedly connected to a rail frame, the upper side of the loading rack is equipped with a loading device, the right side of the loading rack is provided with two salt bath boxes arranged in a transverse arrangement, and the upper end surfaces of the salt bath boxes are fixedly connected to the rail frame, the right side of the salt bath box is provided with two cleaning boxes arranged in a transverse arrangement, and the upper end surfaces of the cleaning boxes are fixedly connected to the rail frame, and the cleaning A material unloading platform located inside the rail frame is provided on the right side of the box, a heating module is installed on the upper left side of the rail frame, the heating module includes a heating body, electric push rods are installed on the left and right sides of the heating body, supporting plates are slidably connected in the sliding openings on the left and right sides of the heating body, the ends of the electric push rods away from the heating body are fixedly connected to the supporting plates, a lifting device located inside the loading rack is provided on the lower side of the heating body, a lifting device is installed on the rear side of the salt bath box, a lifting rack located inside the salt bath box is installed on the front side of the lifting device, and a transfer device located at the left cleaning box is installed on the upper side of the rail frame.
[0006] Preferably, a plurality of stacked trays are arranged on the top of the lifting device, the heating body is arranged with a lower opening, a plurality of stacked trays are arranged below the heating body, a plurality of stacked trays are arranged above the left material lifting rack, a plurality of stacked trays are arranged on the inner side of the left salt bath box, a plurality of stacked trays are arranged below the transfer device, a plurality of stacked trays are arranged on the inner side of the left cleaning box, a disk frame module is installed at each group of stacked trays, and a gas transmission module is installed on the front side of the heating body.
[0007] Preferably, the loading device is arranged on the loading rack through an electric roller, the heating body is arranged on the track arranged on the top of the rail frame through an electric roller, the transfer device is composed of a transfer frame, a lifting mechanism installed in the transfer frame and a clamping device installed on the lower side of the lifting mechanism, the transfer frame of the transfer device is arranged on the track arranged on the top of the rail frame through an electric roller, the two side support bars of the support plate are arranged on the front and rear sides of the lifting device, and the width dimension of the tray is larger than the width dimension of the lifting device.
[0008] Preferably, the tray frame module includes a base frame, an injection rack and a fixed rod portion, the base frame includes a frame body arranged on the upper side of a group of stacked trays, an air duct is opened on the inner side of the frame body, a plurality of connection holes arranged in equal distances are opened on both sides of the upper part of the air duct, a plurality of jacks arranged in equal distances are opened on the left side of the air duct, a plurality of injection racks arranged in equal distances are installed on the upper side of the base frame, and the injection racks are connected to the connection holes on the front and rear sides, the gas transmission module includes a support frame fixed on the front side of the heating body, and the upper part of the support frame An X-axis carrier is fixedly connected to the side, and a middle connecting plate is fixedly connected to the rear end of the driving block of the X-axis carrier. A frame plate is fixedly connected to the upper groove of the rear end of the middle connecting plate, and an air pump is fixedly connected to the inner side of the frame plate. The upper side of the air pump is connected with an air pipe, and the other end of the air pipe passes through the frame plate and is connected to a horizontally arranged air shell, and the right side of the air shell is connected to a plurality of jet joints arranged at equal distances, and a contact button is installed in the right hole of the air shell, and temperature sensors are installed on both sides of the upper part of the X-axis carrier.
[0009] Preferably, the gas shell is laterally aligned with each base frame, the number of the jet connectors is the same as the number of sockets on a single base frame, the jet connectors and the sockets are laterally aligned, the jet rack is composed of connecting pipes on the front and rear sides and a spray shell in the middle, the spray shell nozzle of the jet rack is downwardly arranged, the jet racks are all arranged on the upper side of a group of stacked pallets, and the X-axis carrier is arranged on the front side of the transfer device.
[0010] Preferably, the temperature sensors are arranged on the upper front side of the salt bath box, the height of the temperature sensors is consistent with the height of the gas shell and the jet joint, a support block is arranged on the right side of the frame plate, and the gas shell is fixed above the support block on the right side of the frame plate.
[0011] Preferably, the tray comprises an outer frame, the inner side of the outer frame is fixedly connected to a disc plate, the inner diagonal positions of the outer frame are fixedly connected to a positioning ring sleeve, the inner side of the positioning ring sleeve is provided with a card slot, each corner of the base frame is provided with a fixing hole, and the fixing holes are aligned with the positioning ring sleeve up and down, and a fixing rod portion is installed on the inner side of the fixing hole, and the fixing rod portion comprises a through tube fixed in the fixing hole, and the through tube passes through each positioning ring sleeve on the lower side, and the outer curved surface of the through tube is provided with a plurality of groups of pin openings aligned with each card slot, each group of the pin openings is provided with four and are arranged at equal angles, and a corresponding number of groups of bayonet pins are slidably connected in each group of the pin openings, and an elastic ring band is sleeved on each group of the bayonet pins, the inner side of the through tube is slidably connected with an inner rod, a plurality of annular grooves are provided on the outer curved surface of the inner rod, and the annular grooves are arranged on the lower side of each group of bayonet pins, and a pull block is fixedly connected to the upper end of the inner rod.
[0012] Preferably, grooves are provided on the outer curved surfaces of the bayonet pins, the elastic ring bands are installed on the inner sides of the grooves of the bayonet pins, the ends of the bayonet pins close to the elastic ring bands are inserted into the inner sides of the grooves, the ends of the bayonet pins away from the elastic ring bands are rounded, and the ring grooves are arc-shaped groove structures.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by providing a loading device, a tray, a heating module and a base frame, the loading rack of the base frame can be used as a support guide for the movement of the loading device, and the rail frame of the base frame can be used as a support guide for the movement of the heating module, and the stacking tray for storing metal workpieces can be placed on the loading device, and the loading device can transport the stacking tray to the top of the lifting device, and the lifting device can push the stacking tray to the inner side of the heating module for heating, and the electric push rod and the supporting plate can cooperate to support the stacking tray in the heating process, and when the heating is about to be completed, the movable heating module can directly move the stacking tray and The workpiece is moved to the top of the salt bath box. At this time, the stacking tray and the workpiece in the heating module can be directly transferred to the salt bath box for salt bath treatment through the cooperation of the lifting device and the lifting rack. After the salt bath quenching equipment heats the metal workpiece through the movable heating device, it can be seamlessly sent into the salt bath box for salt bath quenching treatment. This solves the problem that when the existing salt bath quenching equipment transfers the heated metal workpiece, the workpiece will be oxidized and decarburized due to exposure to air, resulting in a decrease in surface quality, and a temperature gradient will be formed, which will cause the increase of thermal stress and structural stress during quenching, which is easy to cause deformation and cracking of the workpiece. 2. In the present invention, by providing the gas transmission module, base frame, jet frame and temperature sensor and other structures, after the metal workpiece is quenched in the salt bath, the material lifting device is controlled to make the material lifting frame rise, driving the stacking tray out of the salt solution. When the base frame rises with the tray to the same height as the gas shell, the temperature sensor will detect the high temperature, and then the material lifting device and the material lifting frame will be instructed to stop rising to ensure that the gas shell and the base frame are at the same level. Then, the X-axis carrier is controlled to drive the center plate, frame plate and gas shell to move toward the base frame. After the contact button contacts the base frame, the X-axis carrier is controlled to stop. At this time, The jet connector will be inserted into the jack to achieve the connection between the gas shell and the airway. At this time, the air pump is started to allow the gas to enter the airway through the gas pipe, gas shell and jet connector, and then be diverted to the jet rack and sprayed downward to form a large-scale downward airflow that runs through the entire stacking tray. This process effectively cleans the salt solution remaining on the surface of the stacking tray and the workpiece, significantly reducing the salt content on the surface of the tray and the workpiece, avoiding the subsequent cleaning process. The large amount of residual salt solution causes the salt content of the cleaning water to rise rapidly, thereby reducing the frequency of water changes in the cleaning box, effectively saving water resources; 3. In the present invention, by setting up the base frame, fixed rods and trays and other structures, first put the workpieces to be quenched into each tray, then stack the trays in sequence and ensure that the positioning rings are aligned. At this time, you can hold the tray frame module and insert the fixed rods into the positioning rings of the stacked trays. Next, push the inner rod down by the pull block. As the inner rod moves downward, the annular groove will squeeze out the pin in the annular groove, and the pin will move outward with the pin mouth as the guide and be stuck in the slot of the positioning ring. In this way, each fixed rod can cooperate with the base frame to fix the stacked trays, ensuring that the stacked trays remain stable during the subsequent salt bath quenching process. This measure can effectively prevent the stacked trays from being misaligned or scattered due to vibration or other factors during movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Another perspective structural diagram of; Figure 3 For the present invention Figure 1 A rear view structural diagram of ; Figure 4 It is a structural schematic diagram of the base frame of the present invention; Figure 5 It is a structural schematic diagram of the lifting device of the present invention; Figure 6 It is a schematic cross-sectional structure diagram of the tray of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the pallet structure; Figure 8 For the present invention Figure 7 A schematic diagram of the structure at A; Fig. 9 It is a structural schematic diagram of the disk frame module of the present invention; Fig.10 It is a schematic diagram of the dissected structure of the base frame of the present invention; Fig.11 It is a structural schematic diagram of the jet frame of the present invention; Fig.12 It is a schematic cross-sectional structure diagram of the fixed rod portion of the present invention; Fig.13 For the present invention Fig.12 Schematic diagram of the pipe-through structure; Fig.14 It is a schematic diagram of the separation structure of the bayonet and the elastic ring band of the present invention; Fig.15 It is a schematic cross-sectional structural diagram of the heating module of the present invention; Fig.16 It is a structural schematic diagram of the gas transmission module of the present invention; Fig.17 For the present invention Fig.16 Schematic diagram of the structure at B; Fig.18 For the present invention Fig.16 Schematic diagram of the structure viewed from above; Fig.19 It is a schematic structural diagram of the transfer device of the present invention.
[0015] In the figure: 1, base frame; 11, loading rack; 12, loading device; 13, rail frame; 14, salt bath box; 15, cleaning box; 16, unloading platform; 2, lifting device; 3, tray; 31, outer frame; 32, plate; 33, positioning ring sleeve; 34, slot; 4, plate frame module; 41, base frame; 411, frame body; 412, fixing hole; 413, airway; 414, connection hole; 415, plug hole; 42, jet frame; 43, fixing rod; 431, through pipe; 432, pin mouth; 433. latch; 434. elastic ring band; 435. inner rod; 436. ring groove; 437. pull block; 5. heating module; 51. heating body; 52. electric push rod; 53. supporting plate; 6. lifting device; 7. lifting rack; 8. transfer device; 9. gas transmission module; 91. support frame; 92. X-axis carrier; 93. center plate; 94. frame plate; 95. gas pump; 96. gas pipe; 97. gas shell; 98. jet connector; 99. contact button; 10. temperature sensor. DETAILED DESCRIPTION
[0016] See also Figure 1-19 , the present invention provides a technical solution: A mobile salt bath quenching equipment comprises a base frame 1, a lifting device 2, a tray 3 for holding workpieces, a tray frame module 4, a heating module 5 for heating the workpieces, a lifting device 6, a lifting frame 7, a transfer device 8, a gas transmission module 9 and a temperature sensor 10. The base frame 1 comprises a loading frame 11, a rail frame 13 is fixedly connected to the right side of the loading frame 11, a loading device 12 is installed on the upper side of the loading frame 11, and two salt bath boxes 14 arranged transversely are arranged on the right side of the loading frame 11. The upper end faces of the salt bath box 14 are fixedly connected to the rail frame 13. Two cleaning boxes 15 arranged in a transverse arrangement are arranged on the right side of the salt bath box 14. The upper end faces of the cleaning boxes 15 are fixedly connected to the rail frame 13. A material unloading platform 16 located inside the rail frame 13 is arranged on the right side of the cleaning box 15. A heating module 5 is installed on the upper left side of the rail frame 13. The heating module 5 includes a heating body 51. Electric push rods 52 are installed on the left and right sides of the heating body 51. The sliding openings on the left and right sides of the heating body 51 are both slidable. A supporting plate 53 is connected, and one end of the electric push rod 52 away from the heating body 51 is fixedly connected to the supporting plate 53. A lifting device 2 located inside the loading rack 11 is provided on the lower side of the heating body 51, a lifting device 6 is installed on the rear side of the salt bath box 14, and a lifting rack 7 located inside the salt bath box 14 is installed on the front side of the lifting device 6. A transfer device 8 located at the left cleaning box 15 is installed on the upper side of the rail frame 13; a plurality of stacked trays 3 are provided on the top of the lifting device 2, the heating body 51 is opened at the bottom, a plurality of stacked trays 3 are provided below the heating body 51, a plurality of stacked trays 3 are provided above the left lifting rack 7, a plurality of stacked trays 3 are provided on the inner side of the left salt bath box 14, a plurality of stacked trays 3 are provided below the transfer device 8, a plurality of stacked trays 3 are provided on the inner side of the left cleaning box 15, a disc frame module 4 is installed at each group of stacked trays 3, and a gas transmission module 9 is installed on the front side of the heating body 51;The feeding device 12 is arranged on the feeding frame 11 through an electric roller, and the feeding device 12 can be displaced on the feeding frame 11 by control through this arrangement. The heating body 51 is arranged on the track set at the top of the rail frame 13 through an electric roller, and the heating body 51 can be displaced on the rail frame 13 by control through this arrangement. The transfer device 8 is composed of a transfer frame, a lifting mechanism installed in the transfer frame, and a clamping device installed on the lower side of the lifting mechanism. The transfer frame of the transfer device 8 is arranged on the track set at the top of the rail frame 13 through an electric roller, and the transfer device 8 can be displaced on the rail frame 13 by control through this arrangement. 8 can be displaced, can drive the clamping device to move up and down through the lifting mechanism, can be used to clamp the stacking tray 3 through the clamping device, and then the transfer device 8 can send the clamped stacking tray 3 and the stored workpiece into the cleaning box 15 for cleaning, the two side support bars of the support plate 53 are set on the front and rear sides of the lifting device 2, and the width of the tray 3 is greater than the width of the lifting device 2. Through this setting, after the lifting device 2 sends the tray 3 into the heating body 51, the support plate 53 can be displaced to the lower side of the tray 3 without being affected by the interference of the lifting device 2. ;
[0017] like Figure 6 , Figure 9-11 , Figure 16-Figure 18As shown, the tray frame module 4 includes a base frame 41, an injection frame 42 and a fixed rod 43. The base frame 41 includes a frame body 411 arranged on the upper side of a group of stacked trays 3. An air duct 413 is provided on the inner side of the frame body 411. A plurality of connection holes 414 arranged in equal distances are provided on both sides of the upper part of the air duct 413. A plurality of jacks 415 arranged in equal distances are provided on the left side of the air duct 413. A plurality of injection frames 42 arranged in equal distances are installed on the upper side of the base frame 41, and the injection frames 42 are connected to the connection holes 414 on the front and rear sides. The gas transmission module 9 includes a support frame 91 fixed to the front side of the heating body 51. An X-axis carrier 92 is fixedly connected to the upper side of the support frame 91. A middle connecting plate 93 is fixedly connected to the rear end of the driving block of the X-axis carrier 92. A frame plate 94 is fixedly connected in the slot on the upper side of the rear end, and an air pump 95 is fixedly connected to the inner side of the frame plate 94. An air pipe 96 is connected to the upper side of the air pump 95. The other end of the air pipe 96 passes through the frame plate 94 and is connected to a gas shell 97 arranged horizontally. The right side of the gas shell 97 is connected to a plurality of jet joints 98 arranged equidistantly. A contact button 99 is installed in the hole on the right side of the gas shell 97. Temperature sensors 10 are installed on both sides of the upper part of the X-axis carrier 92. Through this arrangement, after the metal workpiece is quenched in the salt bath box 14, the lifting device 6 is controlled to make the lifting frame 7 rise, driving the stacking tray 3 out of the salt solution. When the base frame 41 rises with the tray 3 to the same height as the gas shell 97, the temperature sensor 10 will detect high temperature, and then the lifting device 6 and the lifting frame 7 are instructed to stop. The air shell 97 stops rising to ensure that the air shell 97 is at the same level as the base frame 41. Then, the X-axis carrier 92 is controlled to drive the middle plate 93, the frame plate 94 and the air shell 97 to move toward the base frame 41. After the contact button 99 contacts the base frame 41, the X-axis carrier 92 is controlled to stop. At this time, the jet connector 98 will be inserted into the jack 415 to achieve the connection between the air shell 97 and the air duct 413. At this time, the air delivery pump 95 is started to allow the gas to enter the air duct 413 through the air delivery pipe 96, the air shell 97 and the jet connector 98, and then be diverted to the jet rack 42 and sprayed downward to form a large-scale downward airflow throughout the stacking tray 3. This process effectively cleans the salt solution remaining on the surface of the stacking tray 3 and the workpiece, and significantly reduces the salt content on the surface of the tray 3 and the workpiece; the air shell 97 and each base frame 41 are horizontal The number of the jet connectors 98 is the same as the number of the sockets 415 on the single base frame 41, and the jet connectors 98 and the sockets 415 are arranged to be aligned in the horizontal direction. Through this arrangement, when the base frame 41 is moved up to the same height as the gas shell 97, the movable gas shell 97 can insert the jet connector 98 into the socket 415 with the jet connector. The jet rack 42 is composed of the pipes on the front and rear sides and the spray shell in the middle. The spray shell nozzle of the jet rack 42 is arranged downward. The jet racks 42 are all arranged on the upper side of a group of stacked trays 3. Through this arrangement, the downward airflow ejected by the jet rack 42 can clean the salt solution remaining on the lower stacked tray 3 and the surface of the workpiece. The X-axis carrier 92 is arranged on the front side of the transfer device 8. Through this arrangement, the displacement of the transfer device 8 will not be affected by the interference of the X-axis carrier 92;The temperature sensors 10 are all arranged on the upper front side of the salt bath box 14. Through this arrangement, the temperature sensors 10 at the corresponding positions can detect the upper side of the salt bath box 14 at the corresponding positions. The height of the temperature sensor 10 is consistent with the height of the gas shell 97 and the jet joint 98. Through this arrangement, when the temperature sensor 10 detects the base frame 41 through high temperature, it indicates that the base frame 41 has moved up to the same height as the gas shell 97. A support block is arranged on the right side of the frame plate 94, and the gas shell 97 is fixed above the support block on the right side of the frame plate 94. Through this arrangement, the height position of the gas shell 97 can be fixed. ;
[0018] like Figure 6-Figure 9 , Figure 12-14 As shown, the tray 3 includes an outer frame 31, a plate 32 is fixedly connected to the inner side of the outer frame 31, a positioning ring 33 is fixedly connected to the inner diagonal of the outer frame 31, a card slot 34 is provided on the inner side of the positioning ring 33, a fixing hole 412 is provided at each corner of the base frame 41, and the fixing holes 412 are aligned with the positioning ring 33 up and down, and a fixing rod 43 is installed on the inner side of the fixing hole 412, and the fixing rod 43 includes a through pipe 431 fixed in the fixing hole 412, and the through pipe 431 passes through each positioning ring on the lower side. 33, the outer curved surface of the through tube 431 is provided with a plurality of pin holes 432 aligned with the respective slots 34, each group of pin holes 432 is provided with four and are arranged at equal angles, each group of pin holes 432 is slidably connected with a corresponding number of a group of bayonet pins 433, each group of bayonet pins 433 is sleeved with an elastic ring band 434, the inner side of the through tube 431 is slidably connected with an inner rod 435, the outer curved surface of the inner rod 435 is provided with a plurality of annular grooves 436, and the annular grooves 436 are arranged on the lower side of each group of bayonet pins 433, and the upper end of the inner rod 435 is fixed A pull block 437 is connected. Through this arrangement, each fixing rod 43 can cooperate with the base frame 41 to fix the stacked trays 3, ensuring that the stacked trays 3 remain stable during the subsequent salt bath quenching process and movement, and can effectively prevent the stacked trays 3 from being misaligned or scattered up and down due to vibration or other factors during the movement; the outer curved surface of the latch 433 is provided with a groove, and the elastic ring band 434 is installed on the inner side of the groove of the latch 433. Through this arrangement, the latch 433 can limit the elastic ring band 434, and The elastic ring band 434 can reset the protruding and outwardly moved pin 433, and the end of the pin 433 close to the elastic ring band 434 is inserted into the inner side of the slot 34. Through this arrangement, the pin 433 cooperates with the slot 34 to allow the fixing rod 43 to fix the tray 3. The end of the pin 433 away from the elastic ring band 434 is rounded, and the ring groove 436 is an arc-shaped groove structure. Through this arrangement, when the rounded end of the pin 433 is in the ring groove 436, the displacement of the ring groove 436 can squeeze the pin 433 out of the ring groove 436.
[0019] Workflow: The operation of the mobile salt bath quenching equipment for salt bath quenching of metal workpieces is as follows. Note 1: The electrical appliances of this equipment are all powered by an external power supply. The electrical appliances of this equipment are all electrically connected to the external control box and controlled by the external control box; Note 2: Before the fixed rod 43 is fixed to the tray 3, each latch 433 will be completely in the through pipe 431, and the rounded end of each latch 433 will be on the inner side of the ring groove 436; prepare for the operation. First, place each workpiece to be quenched one by one into each tray 3, and then stack these trays 3 neatly from bottom to top, ensuring that the positioning ring sleeves 33 of each tray 3 are aligned up and down. At this time, you can hold the tray frame module 4 and insert each fixed rod 43 from top to bottom into the stacked tray 3, so that each The fixing rod 43 passes through each positioning ring sleeve 33, and then the inner rod 435 is pushed down by the pull block 437 to move downward. As the inner rod 435 moves downward, the annular groove 436 will squeeze out the bayonet 433 in the annular groove 436, and the bayonet 433 will move outward with the pin opening 432 as a guide, so that the elastic ring band 434 elastically expands and is stuck in the bayonet 34 of the positioning ring sleeve 33. In this way, each fixing rod 43 can fix the stacked tray 3 to ensure that the stacked tray 3 remains stable during the subsequent salt bath quenching process. This measure can effectively prevent the stacked tray 3 from being misaligned or scattered due to vibration or other factors during the movement. Finally, the fixed stacked tray 3 and the stored workpieces are placed on the loading device 12 to complete the preparation operation;In the salt bath quenching operation, firstly, the electric roller at the bottom of the loading device 12 is started through the control box, so that it drives the stacking tray 3 loaded with workpieces to move to the top of the lifting device 2. Then, the control box is used to instruct the lifting device 2 to lift and push the stacking tray 3 upward into the interior of the heating body 51. When the stacking tray 3 accurately rises to the predetermined position, the control box automatically triggers the electric push rods 52 on both sides to retract, thereby driving the supporting plates 53 on both sides to move toward each other, ensuring that the supporting bars of the supporting plates 53 are accurately located under the stacking tray 3. At this time, the lifting device 2 is controlled to descend and reset, so that the bottom tray 3 of the stacking tray 3 contacts the supporting plate 53, thereby achieving stable support for the stacking tray 3. Next, the control box is used to control the lifting device 2 to descend and reset, so that the bottom tray 3 of the stacking tray 3 contacts the supporting plate 53, thereby achieving stable support for the stacking tray 3. The box making device starts the heating body 51 to heat the workpieces stored in the internal stacking tray 3. Once the workpieces reach the appropriate heating temperature, the control box will command the electric wheels equipped on the heating body 51 to move and transport the workpieces to the top of the idle salt bath box 14. At this time, the control box will play a role again and start the lifting device 6 corresponding to the position of the idle salt bath box 14 to lift the lifting frame 7 upward until it is close to the stacked tray 3 in the heating body 51. Subsequently, the electric push rods 52 on both sides are controlled to extend and reset, driving the supporting plates 53 on both sides to move backwards, so that the supporting plates 53 no longer provide support for the stacking tray 3, allowing the stacking tray 3 to move down slightly and contact the lifting frame 7, ensuring that the stacking tray 3 is accurately moved above the lifting frame 7. When the material lifting device 6 is operated by the control box, the material lifting frame 7 is moved down, and the stacking tray 3 is driven to move down synchronously, so that the workpieces stored in the stacking tray 3 are gradually immersed in the salt solution in the salt bath box 14 for salt bath quenching treatment. Through this operation, the salt bath quenching equipment can seamlessly send the metal workpiece into the salt bath box 14 for salt bath quenching treatment after heating the metal workpiece through the movable heating module 5, which solves the problem that when the existing salt bath quenching equipment transfers the heated metal workpiece, the workpiece will be oxidized and decarburized due to exposure to air, resulting in a decrease in surface quality, and a temperature gradient will be formed, causing an increase in thermal stress and structural stress during quenching, which is likely to cause deformation and cracking of the workpiece; then the control box controls the heating body 51 to reset, and the The next batch of workpieces are heated, and after heating is completed, the workpieces are placed in another idle salt bath box 14 for salt bath quenching in the above manner; residual liquid treatment operation, after the metal workpieces are quenched in the salt bath box 14, the control cabinet controls the lifting device 6 to raise the lifting rack 7, and the rise of the lifting rack 7 drives the stacking tray 3 with the quenched workpieces out of the salt solution. At the same time, the base frame 41 of the disk frame module 4 that moves with the stacking tray 3 also rises. When the base frame 41 rises to the same height as the gas shell 97, the temperature sensor 10 located at this height will detect the high temperature of the base frame 41. At this time, the temperature sensor 10 instructs the lifting device 6 and the lifting rack 7 to stop rising through the control cabinet to ensure that the gas shell 97 and the base frame 41 remain at the same horizontal height;Subsequently, the control cabinet instructs the X-axis carrier 92 to drive the center plate 93, the frame plate 94 and the gas shell 97 to move laterally toward the base frame 41. When the contact button 99 that moves with the gas shell 97 contacts the base frame 41, it indicates that the gas shell 97 and the base frame 41 have been accurately aligned and fitted. At this time, the X-axis carrier 92 is controlled to stop running. At this time, the various jet connectors 98 on the gas shell 97 will be accurately inserted into the various sockets 415 of the base frame 41 to achieve the connection between the gas shell 97 and the air duct 413 in the base frame 41. Next, the control cabinet starts the air delivery pump 95, and the air delivery pump 95 delivers gas to the gas shell 97 through the air delivery pipe 96. The gas shell 97 then delivers the gas to the air duct 413 through the jet connector 98. The gas in the air duct 413 is diverted to each jet rack 42 and sprayed downwardly by the jet rack 42 to form a large-scale downward airflow that runs through the entire stacking tray 3. This process effectively cleans the salt solution remaining on the surface of the stacking tray 3 and the workpiece, significantly reducing The salt content of the tray 3 and the surface of the workpiece is reduced, and the salt content of the cleaning water is prevented from rising rapidly due to the large amount of residual salt solution in the subsequent cleaning process, thereby reducing the frequency of changing the water in the cleaning box 15, and effectively saving water resources; in the cleaning operation, after the residual liquid is treated, the air shell 97 is controlled to reset, and then the transfer device 8 is controlled by the control box to move to the stacking tray 3 after the residual liquid is treated, and the stacking tray 3 with the workpiece is clamped by the clamping device of the transfer device 8, and then the workpiece is moved to the top of the left cleaning box 15, and the workpiece is cleaned for the first time by the transfer device 8, and then the workpiece is sent to the right cleaning box 15 for the second cleaning. After the cleaning is completed, the workpiece together with the stacking tray 3 and the disk frame module 4 are placed on the top of the unloading table 16, waiting for the staff to take them out, and through the above preparation operation, salt bath quenching operation, residual liquid treatment operation and cleaning operation, the metal workpiece can be automatically and efficiently subjected to complete salt bath quenching treatment. ;
[0020] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above are only preferred implementation methods of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.
Claims
1. A mobile salt bath quenching device, comprising a base frame (1), a lifting device (2), a tray (3) for holding a workpiece, a tray frame module (4), a heating module (5) for heating the workpiece, a material lifting device (6), a material lifting frame (7), a transfer device (8), a gas transmission module (9) and a temperature sensor (10), characterized in that: The base frame (1) comprises a loading rack (11), the right side of which is fixedly connected to a rail frame (13), a loading device (12) is installed on the upper side of the loading rack (11), two salt bath boxes (14) arranged transversely are arranged on the right side of the loading rack (11), and the upper end surfaces of the salt bath boxes (14) are fixedly connected to the rail frame (13), two cleaning boxes (15) arranged transversely are arranged on the right side of the salt bath boxes (14), and the upper end surfaces of the cleaning boxes (15) are fixedly connected to the rail frame (13), a loading platform (16) located inside the rail frame (13) is installed on the right side of the cleaning box (15), and a heating module (5) is installed on the upper left side of the rail frame (13), and the heating module (5) is installed on the upper left side of the rail frame (13). The block (5) comprises a heating body (51), electric push rods (52) are installed on the left and right sides of the heating body (51), supporting plates (53) are slidably connected in the sliding openings on the left and right sides of the heating body (51), and the ends of the electric push rods (52) away from the heating body (51) are fixedly connected to the supporting plates (53), and the lower side of the heating body (51) is provided with a lifting device (2) located inside the loading rack (11), the rear side of the salt bath box (14) is installed with a lifting device (6), and the front side of the lifting device (6) is installed with a lifting rack (7) located inside the salt bath box (14), and the upper side of the rail frame (13) is installed with a transfer device (8) located at the left cleaning box (15).
2. The mobile salt bath quenching equipment according to claim 1, characterized in that: A plurality of stacked trays (3) are arranged on the top of the lifting device (2); the heating body (51) is arranged with a lower opening; a plurality of stacked trays (3) are arranged below the heating body (51); a plurality of stacked trays (3) are arranged above the left material lifting rack (7); a plurality of stacked trays (3) are arranged on the inner side of the left salt bath box (14); a plurality of stacked trays (3) are arranged below the transfer device (8); a plurality of stacked trays (3) are arranged on the inner side of the left cleaning box (15); a tray frame module (4) is installed at each group of stacked trays (3); and a gas transmission module (9) is installed on the front side of the heating body (51).
3. The mobile salt bath quenching equipment according to claim 2, characterized in that: The loading device (12) is arranged on the loading frame (11) via an electric roller, the heating body (51) is arranged on a track arranged on the top of the rail frame (13) via an electric roller, the transfer device (8) is composed of a transfer frame, a lifting mechanism installed in the transfer frame, and a clamping device installed on the lower side of the lifting mechanism, the transfer frame of the transfer device (8) is arranged on the track arranged on the top of the rail frame (13) via an electric roller, the two side support bars of the support plate (53) are arranged on the front and rear sides of the lifting device (2), and the width dimension of the tray (3) is greater than the width dimension of the lifting device (2).
4. The mobile salt bath quenching equipment according to claim 2, characterized in that: The tray frame module (4) comprises a base frame (41), an injection frame (42) and a fixing rod (43). The base frame (41) comprises a frame body (411) arranged on the upper side of a group of stacked trays (3). An air duct (413) is provided on the inner side of the frame body (411). Both sides of the upper part of the air duct (413) are provided with a plurality of connection holes (414) arranged in an equidistant manner. The left side of the air duct (413) is provided with a plurality of plug holes (415) arranged in an equidistant manner. The upper side of the base frame (41) is provided with a plurality of injection frames (42) arranged in an equidistant manner, and the injection frames (42) are connected to the connection holes (414) on the front and rear sides. The air transmission module (9) comprises a support frame (91) fixed on the front side of the heating body (51). The support frame An X-axis carrier (92) is fixedly connected to the upper side of the (91), a middle connecting plate (93) is fixedly connected to the rear end of the driving block of the X-axis carrier (92), a frame plate (94) is fixedly connected to the slot on the upper side of the rear end of the middle connecting plate (93), an air pump (95) is fixedly connected to the inner side of the frame plate (94), an air delivery pipe (96) is connected to the upper side of the air delivery pump (95), the other end of the air delivery pipe (96) passes through the frame plate (94) and is connected to a horizontally arranged air shell (97), the right side of the air shell (97) is connected to a plurality of air jet joints (98) arranged in an equidistant manner, a contact button (99) is installed in a hole on the right side of the air shell (97), and temperature sensors (10) are installed on both sides of the upper part of the X-axis carrier (92).
5. The mobile salt bath quenching equipment according to claim 4, characterized in that: The gas shell (97) is arranged to be aligned transversely with each base frame (41); the number of the gas jet connectors (98) is the same as the number of the sockets (415) on a single base frame (41); the gas jet connectors (98) and the sockets (415) are arranged to be aligned transversely; the gas jet rack (42) is composed of connecting pipes at the front and rear sides and a gas jet shell in the middle; the gas jet shell nozzle of the gas jet rack (42) is arranged downward; the gas jet racks (42) are all arranged on the upper side of a group of stacked trays (3); and the X-axis carrier (92) is arranged on the front side of the transfer device (8).
6. The mobile salt bath quenching equipment according to claim 4, characterized in that: The temperature sensors (10) are all arranged on the upper front side of the salt bath box (14). The height of the temperature sensors (10) is consistent with the height of the gas shell (97) and the gas jet joint (98). A support block is arranged on the right side of the frame plate (94). The gas shell (97) is fixed above the support block on the right side of the frame plate (94).
7. The mobile salt bath quenching equipment according to claim 4, characterized in that: The tray (3) comprises an outer frame (31), a tray plate (32) is fixedly connected to the inner side of the outer frame (31), positioning rings (33) are fixedly connected to the inner diagonals of the outer frame (31), and the inner sides of the positioning rings (33) are provided with clamping grooves (34), and the base frame (41) has fixing holes (412) at each corner, and the fixing holes (412) are aligned with the positioning rings (33) in the upper and lower directions, and the inner sides of the fixing holes (412) are provided with fixing rods (43), and the fixing rods (43) comprise through-tubes (431) fixed in the fixing holes (412), and the through-tubes (431) pass through the positioning rings (33) at the lower side. The outer curved surface of the penetration tube (431) is provided with a plurality of groups of pin holes (432) aligned with the respective slots (34), each group of the pin holes (432) is provided with four and are arranged at equal angles, a corresponding number of groups of bayonet pins (433) are slidably connected in each group of the pin holes (432), each group of the bayonet pins (433) is sleeved with an elastic ring band (434), an inner rod (435) is slidably connected to the inner side of the penetration tube (431), a plurality of annular grooves (436) are provided on the outer curved surface of the inner rod (435), and the annular grooves (436) are arranged on the lower side of each group of bayonet pins (433), and a pull block (437) is fixedly connected to the upper end of the inner rod (435).
8. The mobile salt bath quenching equipment according to claim 7, characterized in that: A groove is provided on the outer curved surface of the bayonet (433); the elastic ring band (434) is installed on the inner side of the groove of the bayonet (433); one end of the bayonet (433) close to the elastic ring band (434) is inserted into the inner side of the slot (34); one end of the bayonet (433) away from the elastic ring band (434) is rounded; and the ring groove (436) is an arc-shaped groove structure.