A heat treatment device for a profiled rail and a heat treatment method thereof

Abstract

The application discloses a heat treatment device of a special-shaped guide rail and a heat treatment method thereof, relates to the technical field of heat treatment devices, and comprises a conveying mechanism and a heating and cooling mechanism. The conveying mechanism comprises a conveying plate and a conveying structure for driving the conveying plate to pass through the heating and cooling mechanism. The conveying plate is screw-connected with a plurality of bolts, fixedly connected with fixing bases corresponding to the bolts, and rotationally connected with linkage members. The linkage members are fixedly connected with the heads of the corresponding bolts. The shanks of the bolts are sleeved with pressing blocks. The conveying plate is provided with a synchronous structure for driving all the linkage members to synchronously rotate. The synchronous structure drives all the linkage members to synchronously rotate, each linkage member drives the corresponding bolt to rotate, the synchronous tightening or loosening of the plurality of bolts is realized, the convenience of feeding and discharging the special-shaped guide rail is improved, time and labor are saved, and the heat treatment efficiency of the special-shaped guide rail is improved.

Description

Technical Field

[0001] This application relates to the technical field of heat treatment apparatus, and in particular to a heat treatment apparatus and heat treatment method for irregularly shaped guide rails. Background Technology

[0002] Shaped guides are grooves or ridges made of metal or other materials. They are available in small and large sizes to meet different needs. They are devices that support, fix, and guide moving parts or equipment while reducing friction. The longitudinal grooves or ridges on the surface of shaped guides are used to guide and fix machine parts, specialized equipment, instruments, etc. Shaped guides are used in linear reciprocating motion applications, possessing a higher rated load than linear bearings and capable of handling a certain amount of torque, enabling high-precision linear motion under high loads.

[0003] Currently, in order to ensure the mechanical properties of irregular-shaped guide rails, heat treatment is required. The irregular-shaped guide rails are often fixed on a conveying device, which then conveys them to a heat treatment device. The heat treatment device heats the irregular-shaped guide rails at high temperatures, and then quickly cools them down. This process is also known as quenching.

[0004] The irregular guide rail is fixed to the transmission device by multiple bolts threaded to the transmission device. Each bolt has a pressure block fitted on it. The pressure block abuts against the irregular guide rail. Tightening the bolts fixes the irregular guide rail to the transmission device. However, the loading and unloading of the irregular guide rail requires manual tightening or loosening of multiple bolts, which is time-consuming and labor-intensive. The heat treatment efficiency of the irregular guide rail is also low and needs to be improved. Summary of the Invention

[0005] The purpose of this application is to provide a heat treatment device and method for irregularly shaped guide rails, in order to solve the problem of low heat treatment efficiency for irregularly shaped guide rails.

[0006] The first part of this application provides a heat treatment device for irregularly shaped guide rails, which adopts the following technical solution:

[0007] A heat treatment device for irregularly shaped guide rails includes a conveying mechanism and a heating and cooling mechanism. The conveying mechanism includes a conveying plate and a conveying structure for driving the conveying plate through the heating and cooling mechanism. The conveying plate is threaded with a plurality of bolts and fixedly connected to a fixed seat corresponding to each bolt. The fixed seat is rotatably connected to a linkage member. The linkage member is fixedly connected to the head of the corresponding bolt. The shank of the bolt is sleeved with a pressure block. The conveying plate is provided with a synchronization structure for driving all the linkage members to rotate synchronously.

[0008] By adopting the above technical solution, the irregular-shaped guide rail is placed on the conveyor plate. A synchronous structure drives all linkage components to rotate synchronously. Each linkage component drives its corresponding bolt to rotate, and the bolt is threadedly connected to the conveyor plate and tightened. The bolt head presses against the pressure block, which in turn presses against the irregular-shaped guide rail, thus fixing the irregular-shaped guide rail to the conveyor plate and facilitating its loading. The conveyor structure drives the conveyor plate through a heating and cooling mechanism, which heats the irregular-shaped guide rail at high temperatures for heat treatment. After heat treatment, the heating and cooling mechanism cools the irregular-shaped guide rail, achieving quenching. After quenching, the synchronous structure drives all linkage components to rotate synchronously, and each linkage component drives its corresponding bolt to rotate, loosening the bolt and separating the irregular-shaped guide rail from the conveyor plate, facilitating its unloading. This saves time and effort and improves the heat treatment efficiency of the irregular-shaped guide rail.

[0009] Optionally, the synchronization structure includes a lifting plate slidably connected to the conveyor plate, a synchronization rod fixedly connected to the lifting plate, a driving component disposed on the conveyor plate and used to drive the lifting plate to move up and down, and a spiral groove formed on the linkage component and cooperating with the synchronization rod. The groove depth of the spiral groove increases progressively around the axis of the linkage component. The synchronization rod is located above the linkage component. The synchronization structure also includes a linkage structure that drives the linkage component to reset and rotate.

[0010] By adopting the above technical solution, when bolts need to be tightened, the driving component drives the lifting plate to move downwards in the vertical direction, and the synchronizing rod is inserted into the corresponding spiral groove. The end of the synchronizing rod moves from the shallow end of the spiral groove to the deep end, thereby driving the linkage component to rotate around its own axis. The rotation of the linkage component causes the bolt to rotate around its own axis, realizing the synchronous tightening of multiple bolts. When bolts need to be loosened, the driving component drives the lifting plate to move upwards in the vertical direction, causing the synchronizing rod to move out of the spiral groove. At the same time, the linkage structure drives the linkage component to reset and rotate, causing the bolt to reset and rotate, realizing the synchronous loosening of multiple bolts.

[0011] Optionally, the linkage includes a rotating part and a sliding part slidably connected to one end of the rotating part. The rotating part is rotatably connected to the fixed base, and the sliding part is slidably connected to the fixed base. The spiral groove is formed at the end of the rotating part away from the sliding part. The sliding part has a connecting groove that is interference-fitted with the head of the bolt. A reset member for driving the sliding part to reset and slide is provided between the rotating part and the sliding part. A guide rod is fixedly connected to the sliding part, and the rotating part has a guide groove for the guide rod to be engaged and slid.

[0012] By adopting the above technical solution, during the tightening process, the bolt will move towards the conveyor plate. While the rotating part rotates, the sliding part can move towards the conveyor plate along with the bolt. During the loosening process, the bolt will move away from the conveyor plate. While the rotating part resets and rotates, the reset part can drive the sliding part to move away from the conveyor plate.

[0013] The cooperation between the guide rod and the guide groove guides and limits the sliding movement of the sliding part, improves the stability of the sliding part relative to the rotating part, and improves the stability of loosening or tightening bolts.

[0014] Optionally, the linkage structure includes a take-up roller rotatably connected to the lifting plate, a take-up groove formed on the circumferential sidewall of the rotating part, a linkage rope wound between the take-up roller and the take-up groove, and a linkage torsion spring connected between the take-up roller and the lifting plate and used to drive the take-up roller to reset rotation.

[0015] By adopting the above technical solution, when it is necessary to tighten the bolt, the lifting plate descends, and the synchronous rod drives the rotating part to rotate around its own axis. During the rotation of the rotating part, the linkage rope is gradually wound into the take-up groove. The linkage rope is gradually released from the take-up roller. The take-up roller rotates, causing the linkage torsion spring to be stressed and elastically deformed, thus tightening the bolt. When it is necessary to loosen the bolt, the lifting plate rises, the synchronous rod moves out of the spiral groove, and the take-up roller, driven by the lifting plate, pulls one end of the linkage rope. The linkage rope drives the rotating part to rotate, and the linkage torsion spring elastically resets, causing the take-up roller to reset and rotate. The take-up roller winds up the linkage rope, and the linkage rope is gradually released from the take-up groove, causing the rotating part to reset and rotate, thus loosening the bolt.

[0016] Optionally, the reset component is a reset spring, one end of which is connected to the guide rod and the other end is connected to the bottom of the guide groove. A reset torsion spring is provided between the rotating part and the fixed seat, and the reset torsion spring is used to drive the rotating part to reset and rotate.

[0017] By adopting the above technical solution, when the synchronizing rod drives the rotating part to rotate, the sliding part slides away from the rotating part. The return spring is subjected to force and undergoes elastic deformation and elongation, and the return torsion spring is also subjected to force and undergoes elastic deformation. When the return structure drives the rotating part to return to its original rotation, the return torsion spring also returns to its original rotation elastically, which can assist the return rotation of the rotating part. At the same time, the return spring returns to its original rotation elastically and drives the sliding part to return to its original sliding position.

[0018] Optionally, the conveying structure includes a conveying platform and a conveying component disposed on the conveying platform. The conveying component drives the conveying plate to slide and connect to the conveying platform. The heating and cooling mechanism includes an operating table disposed on one side of the conveying platform, an induction coil disposed on the operating table, and a cooling nozzle. The induction coil is provided with a heating channel.

[0019] By adopting the above technical solution, the conveyor drives the conveyor plate through the heating channel and cooling nozzle in sequence, which can heat the irregular guide rail of the conveyor plate at high temperature. After high temperature heating, the irregular guide rail is cooled by spraying water through the cooling nozzle.

[0020] Optionally, the cooling nozzle is located on one side of the induction coil, and the cooling nozzle is provided with an inlet and an outlet, with the outlet of the cooling nozzle facing away from the induction coil.

[0021] By adopting the above technical solution, the water outlet is away from the induction coil, which reduces the impact of water on the induction coil and also reduces the impact of water on the irregular guide rail in heat treatment.

[0022] Optionally, a plurality of support rollers are rotatably connected to one side of the conveyor platform, and an auxiliary roller corresponding to the support rollers is rotatably connected to the operating platform. Both the support rollers and the auxiliary rollers are provided with limit ring grooves. The plurality of support rollers are arranged at intervals along the length direction of the conveyor platform. A pushing structure is provided on one side of the conveyor platform, and a clamping mechanism that cooperates with the auxiliary rollers is provided on the operating platform.

[0023] By adopting the above technical solution, when processing small-sized irregular-shaped guide rails, the irregular-shaped guide rails are placed on a conveyor plate for heat treatment; when processing large-sized irregular-shaped guide rails, the irregular-shaped guide rails are placed on the limiting ring grooves on auxiliary rollers and several support rollers, and the large-sized irregular-shaped guide rails are driven by a pushing structure through a heating and cooling mechanism. This allows the heat treatment device to easily and alternately heat treat small-sized and large-sized irregular-shaped guide rails without changing the conveyor plate or the mating position of the bolts and the conveyor plate.

[0024] Optionally, the pushing structure includes a transmission screw rotatably connected to one side of the conveyor table, a push block threadedly connected to the transmission screw, and a pusher disposed on the conveyor table for driving the transmission screw to rotate.

[0025] By adopting the above technical solution, the pusher drives the transmission screw to rotate around its own axis, and the pusher slides along the length of the transmission screw under the drive of the transmission screw. The pusher can push the large-sized irregular guide rail through the heating and cooling mechanism.

[0026] 1. The heat treatment method for irregularly shaped guide rails provided in this application adopts the following technical solution:

[0027] The heat treatment of small-sized irregular-shaped guide rails involves placing the irregular-shaped guide rails on a conveyor plate. A synchronous structure drives all linkage components to rotate synchronously, and each linkage component drives the corresponding bolt to rotate. Tightening the bolts causes the pressure block to press against the irregular-shaped guide rail. The conveyor structure drives the conveyor plate through the heating channel of the induction coil. The induction coil heats the irregular-shaped guide rail at high temperature, and the irregular-shaped guide rail passing through the heating channel is cooled by water spray from the cooling nozzle.

[0028] The heat treatment of large-sized irregular guide rails involves placing the irregular guide rails on support rollers and auxiliary rollers and embedding them in the limiting ring groove. With the cooperation of the clamping mechanism (25), the irregular guide rails are limited. The drive screw is driven to rotate by the pusher, and the drive screw drives the push block to slide. The push block pushes the irregular guide rails through the heating channel of the induction coil. The induction coil heats the irregular guide rails at high temperature. The irregular guide rails passing through the heating channel are cooled by water spraying under the action of the cooling nozzle.

[0029] By adopting the above technical solutions, using a segmented fixing method for heat treatment of small-sized irregular-shaped guide rails and a guiding fixing method for heat treatment of large-sized irregular-shaped guide rails, the heat treatment process can achieve a consistent direction and distance of movement.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. The irregular-shaped guide rail is placed on the conveyor plate. A synchronous structure drives all linkage components to rotate synchronously. Each linkage component drives its corresponding bolt to rotate. The bolt is threaded and tightened into the conveyor plate. The bolt head presses against the pressure block, which in turn presses against the irregular-shaped guide rail, thus fixing the guide rail to the conveyor plate and facilitating its loading. The conveyor structure drives the conveyor plate through a heating and cooling mechanism, which heats the guide rail to a high temperature for heat treatment. After heat treatment, the mechanism cools the guide rail, achieving quenching. After quenching, the synchronous structure drives all linkage components to rotate synchronously. Each linkage component drives its corresponding bolt to rotate, loosening the bolt and separating the guide rail from the conveyor plate. This facilitates the unloading of the guide rail, saving time and effort and improving the heat treatment efficiency of the guide rail.

[0032] 2. When bolts need to be tightened, the driving component moves the lifting plate vertically downwards, and the synchronizing rod is inserted into the corresponding spiral groove. The end of the synchronizing rod moves from the shallow end of the spiral groove to the deep end, thereby driving the linkage component to rotate around its own axis. The rotation of the linkage component causes the bolt to rotate around its own axis, achieving simultaneous tightening of multiple bolts. When bolts need to be loosened, the driving component moves the lifting plate vertically upwards, causing the synchronizing rod to move out of the spiral groove. At the same time, the linkage structure causes the linkage component to reset and rotate, causing the bolt to reset and rotate, achieving simultaneous loosening of multiple bolts.

[0033] 3. When processing small-sized irregular-shaped guide rails, the guide rails are placed on the conveyor plate for heat treatment; when processing large-sized irregular-shaped guide rails, the guide rails are placed on the limiting ring grooves on the auxiliary rollers and several support rollers, and the large-sized irregular-shaped guide rails are driven through the heating and cooling mechanism by the pushing structure. This allows the heat treatment device to easily perform heat treatment on both small-sized and large-sized irregular-shaped guide rails without changing the conveyor plate or the mating position of the bolts with the conveyor plate. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0035] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the heating and cooling mechanism according to an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of the synchronization structure according to an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of the linkage structure in an embodiment of this application;

[0039] Figure 6 This is an exploded view of an embodiment of this application;

[0040] Figure 7 This is a cross-sectional schematic diagram of the fixing base according to an embodiment of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 11. Conveying plate; 12. Conveying structure; 121. Conveying platform; 122. Conveying component; 123. Water extraction hole; 13. Fixed base; 131. Rotating groove; 132. Sliding groove; 2. Heating and cooling mechanism; 21. Operating platform; 22. Induction coil; 221. Heating channel; 23. Cooling nozzle; 231. Water inlet; 232. Water outlet; 24. Auxiliary roller; 25. Clamping mechanism; 251. Clamping arm; 252. Clamping cylinder; 253. Clamping roller; 3. Bolt; 31 4. Pressing block; 5. Linkage component; 6. Rotating part; 7. Spiral groove; 8. Guide groove; 9. Sliding part; 10. Connecting groove; 11. Guide rod; 12. Returning torsion spring; 13. Synchronization structure; 14. Lifting plate; 15. Synchronization rod; 16. Driving component; 17. Linkage structure; 18. Take-up roller; 19. Take-up groove; 10. Linkage rope; 11. Linkage torsion spring; 12. Returning component; 13. Support roller; 14. Limiting ring groove; 15. Pushing structure; 16. Transmission screw; 17. Pushing block; 18. Pushing component. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0043] Part One

[0044] This application discloses a heat treatment device for irregularly shaped guide rails.

[0045] Reference Figure 1 and Figure 2 A heat treatment device for an irregularly shaped guide rail includes a conveying mechanism 1 and a heating and cooling mechanism 2. The conveying mechanism 1 includes a conveying plate 11 and a conveying structure 12 for driving the conveying plate 11 through the heating and cooling mechanism 2. The upper side of the conveying plate 11 is threaded with a plurality of bolts 3 and fixedly connected with fixed seats 13 corresponding to each bolt 3. The plurality of bolts 3 are arranged at intervals along the length direction of the conveying plate 11. The fixed seats 13 are rotatably connected with linkages 4. The linkages 4 are fixedly connected to the heads of the corresponding bolts 3. The rod of the bolt 3 is fitted with a pressure block 31, which is located between the head of the bolt 3 and the conveying plate 11. The conveying plate 11 is equipped with a synchronization structure 5 for driving all linkages 4 to rotate synchronously.

[0046] Reference Figure 1 and Figure 2 The conveying structure 12 includes a conveying platform 121, a conveying component 122 mounted on the conveying platform 121 and used to drive the conveying plate 11 to slide on the conveying platform 121, the conveying component 122 being a drive plate, a slide rail fixedly connected to the conveying platform 121, a pulley mounted on the lower side of the drive plate and cooperating with the slide rail, and a drive motor mounted on the drive plate and driving the pulley to slide along the length direction of the slide rail. The conveying plate 11 is detachably connected to the upper side of the drive plate.

[0047] Reference Figure 2 The heating and cooling mechanism 2 includes an operating platform 21 arranged on one side of the conveyor 121, an induction coil 22 connected to the upper side of the operating platform 21, and a cooling nozzle 23. The induction coil 22 is a conventional high-temperature heating device, and the induction coil 22 is integrally formed to form a heating channel 221. The induction coil 22 and the operating platform 21 are detachably and fixedly connected. The induction coil 22 can be adapted to the specifications of the non-standard guide rail. The cooling nozzle 23 is fixedly connected to the operating platform 21 and located on one side of the induction coil 22. The cooling nozzle 23 has an inlet 231 and an outlet 232 that are interconnected. The inlet 231 can be connected to an external water pump and water tank. The outlet 232 of the cooling nozzle 23 is away from the induction coil 22.

[0048] Reference Figure 4The synchronization structure 5 includes a lifting plate 51 slidably connected to the conveyor plate 11, a synchronization rod 52 fixedly connected to the lifting plate 51, a driving component 53 set on the conveyor plate 11 for driving the lifting plate 51 to move up and down, and a spiral groove 411 opened on the linkage component 4 and inserted into the synchronization rod 52. The driving component 53 is a conventional driving cylinder. The cylinder body of the driving cylinder is fixedly connected to the conveyor plate 11 and the end of the piston is fixedly connected to the lifting plate 51. The groove depth of the spiral groove 411 increases gradually around the axis of the linkage component 4. The synchronization rod 52 is located above the linkage component 4. The synchronization structure 5 also includes a linkage structure 54 that drives the linkage component 4 to reset and rotate.

[0049] Reference Figure 5 , Figure 6 and Figure 7 The linkage 4 includes a rotating part 41 and a sliding part 42 slidably connected to one end of the rotating part 41. The upper end of the fixed base 13 is provided with a rotating groove 131 that rotatably engages with the rotating part 41. The bottom of the rotating groove 131 is provided with a sliding groove 132 that slidably engages with the sliding part 42. A spiral groove 411 is provided at the end of the rotating part 41 that is away from the sliding part 42. The groove depth of the spiral groove 411 increases gradually around the axis of the rotating part 41. The sliding part 42 is provided with a connecting groove 421 that is interference-fitted with the head of the bolt 3. A reset member 6 is installed between the rotating part 41 and the sliding part 42 to drive the sliding part 42 to reset and slide. A guide rod 422 is fixedly connected to one end of the sliding part 42 facing the rotating part 41. A guide groove 412 is provided on one end of the rotating part 41 facing the sliding part 42 for the guide rod 422 to be inserted and slide. The reset member 6 is a reset spring installed in the guide groove 412. One end of the reset torsion spring 43 is fixedly connected to the guide rod 422, and the other end is fixedly connected to the bottom of the guide groove 412.

[0050] Reference Figure 5 , Figure 6 and Figure 7 The linkage structure 54 includes a take-up roller 541 rotatably connected to the lifting plate 51, a take-up groove 542 formed on the circumferential side wall of the rotating part 41, a linkage rope 543 wound between the take-up roller 541 and the take-up groove 542, and a linkage torsion spring 544 connected between the take-up roller 541 and the lifting plate 51 and used to drive the take-up roller 541 to reset rotation. The linkage rope 543 is threaded on the fixed base 13, with one end wound and fixedly connected to the take-up roller 541 and the other end wound and fixedly connected to the take-up groove 542. One end of the linkage torsion spring 544 is fixedly connected to the lifting plate 51 and the other end is fixedly connected to the take-up roller 541.

[0051] Reference Figure 5 , Figure 6 and Figure 7A reset torsion spring 43 is installed between the rotating part 41 and the fixed base 13. The reset torsion spring 43 is used to drive the rotating part 41 to reset and rotate. The reset torsion spring 43 is arranged in the rotating groove 131. One end of the reset torsion spring 43 is fixedly connected to the bottom of the rotating groove 131, and the other end is fixedly connected to the rotating part 41.

[0052] Reference Figure 5 , Figure 6 and Figure 7 A plurality of support rollers 7 are rotatably connected to one side of the conveyor 121. The plurality of support rollers 7 are arranged at intervals along the length of the conveyor 121. An auxiliary roller 24 corresponding to the support rollers 7 is rotatably connected to the upper side of the operating table 21. Both the support rollers 7 and the auxiliary rollers 24 have limit annular grooves 71 along their circumferential sidewalls. A push structure 8 is installed on one side of the conveyor 121. The operating table 21 is equipped with a clamping mechanism 25 that cooperates with the auxiliary rollers 24. The clamping mechanism 25 includes a clamping arm 251, a clamping cylinder 252 that drives the clamping arm 251 to rotate, and a clamping roller 253 rotatably connected to the clamping arm 251. The clamping roller 253 cooperates with the auxiliary rollers 24 to clamp the irregular guide rail.

[0053] Reference Figure 1 and Figure 2 The pushing structure 8 includes a transmission screw 81 rotatably connected to one side of the conveyor table 121, a push block 82 threadedly connected to the transmission screw 81, and a pusher 83 mounted on the conveyor table 121 and used to drive the transmission screw 81 to rotate around its own axis. One side of the push block 82 contacts the side wall of the conveyor table 121. The pusher 83 is a push motor fixedly connected to the conveyor table 121, and the output shaft of the push motor is axially fixed to the transmission screw 81.

[0054] Reference Figure 1 The conveyor 121 is provided with a water pumping hole 123. A water pump and a water tank are installed on the conveyor 121. The water pump is connected to the water pumping hole 123 and the water tank. The water pump pumps the water accumulated on the conveyor 121 to the water tank through the water pumping hole 123.

[0055] The implementation principle of the heat treatment device for irregularly shaped guide rails in this application embodiment is as follows:

[0056] When bolt 3 needs to be tightened, the driving component 53 drives the lifting plate 51 to move downward in the vertical direction, and the synchronizing rod 52 is inserted into the corresponding spiral groove 411. The end of the synchronizing rod 52 moves from the shallow part of the spiral groove 411 to the deep part of the groove, thereby driving the linkage component 4 to rotate around its own axis. The rotation of the linkage component 4 drives the bolt 3 to rotate around its own axis, realizing the synchronous tightening of multiple bolts 3. When bolt 3 needs to be loosened, the driving component 53 drives the lifting plate 51 to move upward in the vertical direction, driving the synchronizing rod 52 to move out of the spiral groove 411. At the same time, the linkage structure 54 drives the linkage component 4 to reset and rotate, driving the bolt 3 to reset and rotate, realizing the synchronous loosening of multiple bolts 3.

[0057] While tightening bolt 3, lifting plate 51 descends, and synchronizing rod 52 drives rotating part 41 to rotate around its own axis. During the rotation of rotating part 41, the linkage rope 543 is gradually wound into take-up groove 542. The linkage rope 543 is gradually released from take-up roller 541. Take-up roller 541 rotates, causing linkage torsion spring 544 to be stressed and elastically deformed, thus tightening bolt 3. While loosening bolt 3, lifting plate 51 rises, synchronizing rod 52 moves out of spiral groove 411, linkage torsion spring 544 elastically resets, driving take-up roller 541 to reset and rotate. Take-up roller 541 winds up linkage rope 543, and linkage rope 543 is gradually released from take-up groove 542, driving rotating part 41 to reset and rotate, thus loosening bolt 3.

[0058] The second part of this application discloses a heat treatment method for irregularly shaped guide rails, including the following steps:

[0059] The heat treatment of the small-sized irregular guide rail involves placing the irregular guide rail on the conveyor plate 11. The synchronous structure 5 drives all the linkage parts 4 to rotate synchronously. Each linkage part 4 drives the corresponding bolt 3 to rotate. Tightening the bolt 3 makes the pressure block 31 press against the irregular guide rail. The conveyor structure 12 drives the conveyor plate 11 through the heating channel 221 of the induction coil 22. The induction coil 22 heats the irregular guide rail at high temperature. The irregular guide rail passing through the heating channel 221 is cooled by water spraying under the action of the cooling nozzle 23.

[0060] For the heat treatment of large-sized irregular guide rails, the irregular guide rails are placed on the support rollers 7 and auxiliary rollers 24 and embedded in the limiting ring grooves 71. With the cooperation of the clamping mechanism 25, the irregular guide rails are limited. The pusher 83 drives the transmission screw 81 to rotate, and the transmission screw 81 drives the push block 82 to slide. The push block 82 pushes the irregular guide rails through the heating channel 221 of the induction coil 22. The induction coil 22 heats the irregular guide rails at high temperature. The irregular guide rails passing through the heating channel 221 are cooled by water spraying under the action of the cooling nozzle 23.

[0061] The induction coil 22 is a square, double-row heating element. To achieve better heating capacity and uniformity, a special magnetic material is needed to magnetize certain areas to enhance auxiliary magnetic conductivity. The cooling nozzle 23 requires individual control to prevent cooling from starting before heating is complete, and to prevent over- or under-spraying. The requirements for the water outlet holes 232 are: a diameter of 1.2mm, a center-to-center distance of 2.4mm, and a spray angle of 35-40 degrees. Too large an angle will cause backflow, while too small an angle will affect the spraying effect. The water outlet holes 232 can be arranged in a straight line or staggered along the length of the cooling nozzle 23. The number of water outlet holes 232 can be selected according to actual needs.

[0062] The frequency of induction coil 22 is in the range of 2000-3000Hz, with the power initially high and then decreasing to ensure the heating area and hardness of the irregularly shaped guide rail. In the final stage, the heating speed needs to be 2-3 mm / s faster than normal to avoid overheating and causing coarse texture. The process parameters are divided into three stages: start-up, process, and finish, and the process parameters for each stage, such as frequency and power, need to be adjusted slightly to adapt to these stages.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat treatment device for irregularly shaped guide rails, characterized in that: The system includes a conveying mechanism (1) and a heating and cooling mechanism (2). The conveying mechanism (1) includes a conveying plate (11) and a conveying structure (12) for driving the conveying plate (11) through the heating and cooling mechanism (2). The conveying plate (11) is threaded with a number of bolts (3) and fixedly connected with a fixed seat (13) corresponding to each bolt (3). The fixed seat (13) is rotatably connected with a linkage (4). The linkage (4) is fixedly connected to the head of the corresponding bolt (3). The rod of the bolt (3) is fitted with a pressure block (31). The conveying plate (11) is provided with a synchronization structure (5) for driving all the linkages (4) to rotate synchronously. The synchronization structure (5) includes a lifting plate (51) slidably connected to the conveyor plate (11), a synchronization rod (52) fixedly connected to the lifting plate (51), a driving member (53) disposed on the conveyor plate (11) and used to drive the lifting plate (51) to move up and down, and a spiral groove (411) opened on the linkage member (4) and cooperating with the synchronization rod (52). The groove depth of the spiral groove (411) increases gradually around the axis of the linkage member (4). The synchronization rod (52) is located above the linkage member (4). The synchronization structure (5) also includes a linkage structure (54) that drives the linkage member (4) to reset and rotate. The linkage (4) includes a rotating part (41) and a sliding part (42) slidably connected to one end of the rotating part (41). The rotating part (41) is rotatably connected to the fixed base (13), and the sliding part (42) is slidably connected to the fixed base (13). The spiral groove (411) is opened at one end of the rotating part (41) away from the sliding part (42). The sliding part (42) is provided with a connecting groove (421) that is interference fit with the head of the bolt (3). A reset member (6) for driving the sliding part (42) to reset and slide is provided between the rotating part (41) and the sliding part (42). The sliding part (42) is fixedly connected to a guide rod (422), and the rotating part (41) is provided with a guide groove (412) for the guide rod (422) to be inserted and slide. The linkage structure (54) includes a take-up roller (541) rotatably connected to the lifting plate (51), a take-up groove (542) formed on the circumferential sidewall of the rotating part (41), a linkage rope (543) wound between the take-up roller (541) and the take-up groove (542), and a linkage torsion spring (544) connected between the take-up roller (541) and the lifting plate (51) and used to drive the take-up roller (541) to reset and rotate.

2. The heat treatment apparatus for irregularly shaped guide rails according to claim 1, characterized in that: The reset component (6) is a reset spring. One end of the reset spring is connected to the guide rod (422), and the other end is connected to the bottom of the guide groove (412). A reset torsion spring (43) is provided between the rotating part (41) and the fixed seat (13). The reset torsion spring (43) is used to drive the rotating part (41) to reset and rotate.

3. The heat treatment apparatus for irregularly shaped guide rails according to claim 1, characterized in that: The conveying structure (12) includes a conveying platform (121) and a conveying component (122) disposed on the conveying platform (121). The conveying component (122) drives the conveying plate (11) to slide and connect to the conveying platform (121). The heating and cooling mechanism (2) includes an operating table (21) disposed on one side of the conveying platform (121), an induction coil (22) disposed on the operating table (21), and a cooling nozzle (23). The induction coil (22) is provided with a heating channel (221).

4. The heat treatment apparatus for irregularly shaped guide rails according to claim 3, characterized in that: The cooling nozzle (23) is located on one side of the induction coil (22). The cooling nozzle (23) is provided with an inlet (231) and an outlet (232). The outlet (232) of the cooling nozzle (23) is away from the induction coil (22).

5. The heat treatment apparatus for irregularly shaped guide rails according to claim 3, characterized in that: A plurality of support rollers (7) are rotatably connected to one side of the conveyor (121), and an auxiliary roller (24) corresponding to the support rollers (7) is rotatably connected to the operating table (21). Both the support rollers (7) and the auxiliary rollers (24) are provided with limit ring grooves (71). The plurality of support rollers (7) are arranged at intervals along the length direction of the conveyor (121). A push structure (8) is provided on one side of the conveyor (121), and a clamping mechanism (25) cooperating with the auxiliary rollers (24) is provided on the operating table (21).

6. The heat treatment apparatus for irregularly shaped guide rails according to claim 5, characterized in that: The pushing structure (8) includes a transmission screw (81) rotatably connected to one side of the conveyor table (121), a push block (82) threadedly connected to the transmission screw (81), and a pusher (83) disposed on the conveyor table (121) and used to drive the transmission screw (81) to rotate.

7. A heat treatment method for use in the heat treatment apparatus for irregularly shaped guide rails according to any one of claims 1-6, characterized in that: Includes the following: heat treatment of small-sized irregular guide rails, placing the irregular guide rails on the conveyor plate (11), the synchronous structure (5) drives all linkage parts (4) to rotate synchronously, each linkage part (4) drives the corresponding bolt (3) to rotate, tighten the bolt (3) so that the pressure block (31) presses against the irregular guide rails; the conveyor structure (12) drives the conveyor plate (11) through the heating channel (221) of the induction coil (22), the induction coil (22) heats the irregular guide rails at high temperature, and the irregular guide rails passing through the heating channel (221) are cooled by water spraying under the action of the cooling nozzle (23); For the heat treatment of large-sized irregular guide rails, the irregular guide rails are placed on support rollers (7) and auxiliary rollers (24) and embedded in the limiting ring groove (71). With the cooperation of the clamping mechanism (25), the irregular guide rails are limited. The drive screw (81) is driven to rotate by the pusher (83). The drive screw (81) drives the push block (82) to slide. The push block (82) pushes the irregular guide rails through the heating channel (221) of the induction coil (22). The induction coil (22) heats the irregular guide rails at high temperature. The irregular guide rails passing through the heating channel (221) are cooled by water spraying under the action of the cooling nozzle (23).

Images