An automated heat treatment process apparatus for nickel-titanium alloys

Abstract

This application relates to the field of metal heat treatment technology, specifically disclosing an automated heat treatment process equipment for nickel-titanium alloys. The equipment includes a main body, nickel-titanium alloy wire, induction heating coil, and cooling ring. A collecting rack is fixedly installed on the outer surface of the main body, and a rotating drum is rotatably connected to the inner cavity of the collecting rack. The outer surface of the rotating drum is wound with nickel-titanium alloy wire. This invention uses a limiting component to stabilize the wire exit angle, correct wire deviation, and eliminate lateral tension during operation. A traction component maintains stable stress during wire traction, adjusting the stress to prevent bending due to insufficient force or tension due to excessive force. It can issue an alarm when significant stress is generated and provides a buffering effect when the traction force is large. Stress stability ensures uniform stress on the wire during high-temperature quenching, effectively preventing wire bending, uneven shrinkage, or tension, and improving the wire's strength, toughness, and overall performance.

Description

Technical Field

[0001] This application relates to the field of metal heat treatment technology, and in particular to an automated heat treatment process equipment for nickel-titanium alloys. Background Technology

[0002] Nickel-titanium alloys, with their unique shape memory and superelasticity, have become a core material for precision springs. Quenching is a key heat treatment process for improving the strength, hardness, and mechanical stability of wire. Its core principle is to heat the metal wire above its phase transformation temperature and then rapidly cool it to lock in the high-temperature structure, achieving a strengthening effect. With the increasing demands of precision manufacturing, modern metal wire quenching is trending towards online continuous and automated processes, utilizing precise temperature control, controlled atmosphere protection, and uniform cooling. However, existing technologies still have the following problems:

[0003] 1. During the continuous quenching process of metal wire, the exit angle will deviate to a certain extent. The angle deviation will cause the metal wire to generate lateral tension during operation, which will easily lead to bending, shaking and deviation, destroying the straightness of the wire and seriously affecting subsequent processing. The deviation will also increase the friction between the wire and the guide wheel, causing surface scratches, fuzzing and wear. Continuous angle deviation will also affect the operating accuracy of the equipment, accelerate the wear of transmission components, and reduce the reliability and product qualification rate of the automated production line.

[0004] 2. Existing process equipment cannot stably regulate the stress generated during traction. Unstable stress will directly damage product quality and production stability, causing the metal wire to bend, shrink unevenly, or become taut. Bending areas are prone to uneven quenching, resulting in stress concentration. After quenching, microcracks are easily generated, reducing the strength and toughness of the metal wire and making it prone to breakage during use. If the traction force is too large and not detected in time, the metal wire will be overstretched at high temperature, causing the diameter to become thinner, the cross-section to become uneven, and plastic deformation to occur, damaging the internal structure of the material and seriously affecting the product qualification rate and service life. Summary of the Invention

[0005] To overcome the shortcomings of the continuous quenching process of metal wires, where the wire exit angle deviates, causing lateral tension, bending, vibration, and deviation, thus compromising the straightness of the wire and severely affecting subsequent processing steps, this invention provides an automated heat treatment process for nickel-titanium alloys to address these deficiencies. This deviation can lead to lateral tension on the wire during operation, resulting in bending, vibration, and misalignment, which in turn damages the wire's straightness and significantly impacts subsequent processing. Furthermore, it can exacerbate friction between the wire and guide rollers, causing surface scratches, burrs, and wear. Continuous angular deviation can also affect equipment operating accuracy, accelerate wear on transmission components, reduce the reliability and product qualification rate of automated production lines, and prevent stable adjustment of stress generated during traction. Unstable stress directly damages product quality and production stability, leading to bending, uneven shrinkage, or tension in the metal wire. Bending areas are prone to uneven quenching, resulting in stress concentration and microcracks after quenching, reducing the wire's strength and toughness and making it susceptible to breakage during use. If excessive traction force is not detected in time, the wire can be overstretched at high temperatures, causing thinner diameter, uneven cross-section, plastic deformation, and damage to the material's internal structure.

[0006] This application provides an automated heat treatment process device for nickel-titanium alloys, including a main body, nickel-titanium alloy wire, induction heating coil, and cooling ring. A collection rack is fixedly installed on the outer surface of the main body, and a rotating drum is rotatably connected to the inner cavity of the collection rack. The outer surface of the rotating drum is wound with nickel-titanium alloy wire. A limit component is provided on the outer surface of the collection rack. A traction component is provided on the outer surface of the main body, and an induction heating coil and a water collection tank are provided on the outer surface of the traction component. The cooling ring is located in the inner cavity of the water collection tank. The limit component includes a first connecting block, a first threaded rod is rotatably connected to the inner cavity of the first connecting block, a first motor is provided on the outer surface of the first connecting block, a first limiting mechanism is slidably connected to the outer surface of the first connecting block, a first fixing block is fixedly installed on the outer surface of the first connecting block, and a second limiting mechanism is provided at the top of the first fixing block. The first connecting block and the outer surface of the collection rack are fixedly connected, and the output end of the first motor is sleeved with the first threaded rod.

[0007] Furthermore, the first limiting mechanism includes a movable block, a buffer block slidably connected to the inner cavity of the movable block, a first limiting ring fixedly installed on the upper surface of the buffer block, a first sliding rod fixedly installed at both ends of the buffer block, a first spring sleeved on the outer surface of the first sliding rod, a first pressing block fixedly installed on the outer surface of the buffer block, a fixing strip fixedly installed on the outer surface of the movable block, a second threaded rod rotatably connected to the inner cavity of the fixing strip, an adjusting block slidably connected to the outer surface of the fixing strip, a first alarm fixedly installed on the outer surface of the adjusting block, and a first button provided on the outer surface of the adjusting block.

[0008] Furthermore, the moving block and the first connecting block are slidably connected, and the moving block and the first threaded rod are threadedly connected. The first slide rod and the moving block are slidably connected. The first spring is located between the buffer block and the moving block. The adjusting block and the second threaded rod are threadedly connected, and the thread directions at both ends of the second threaded rod are opposite. The two sides of the first pressing block are rounded, and the two sides of the first button are chamfered. When the buffer block moves, the first pressing block presses the first button. The first alarm and the first button are electrically connected, and pressing the first button controls the first alarm to sound an alarm.

[0009] Furthermore, the second limiting mechanism includes a fixed ring, which is fixedly connected to the first fixed block. The outer surface of the fixed ring is provided with a first sliding groove. A second limiting ring is provided in the middle part of the fixed ring. A second sliding rod is fixedly installed on the outer surface of the second limiting ring. A second spring is sleeved on the outer surface of the second sliding rod. A washer is slidably connected to the outer surface of the second sliding rod. The second spring is located between the second limiting ring and the washer. The washer is slidably connected to the inner wall of the fixed ring. The second sliding rod is slidably connected to the first sliding groove. There is a gap between the second sliding rod and the inner wall of the first fixed block.

[0010] Furthermore, the traction assembly includes a traction frame, a second fixing block is fixedly installed on the outer surface of the traction frame, an adjustment mechanism is provided on the lower surface of the second fixing block, a stress mechanism is provided on the lower surface of the second fixing block, a traction block is provided on the lower surface of the adjustment mechanism, a stress wheel is rotatably connected to the inner cavity of the traction block, a traction mechanism is provided on the outer surface of the traction frame, a water collection tank is fixedly connected to the traction frame, an induction heating coil is fixedly connected to the outer surface of the traction frame, and the traction frame is fixedly connected to the main body of the equipment.

[0011] Furthermore, the adjustment mechanism includes a second connecting block, a third threaded rod rotatably connected to the inner cavity of the second connecting block, a slider slidably connected to the lower surface of the second connecting block, the third threaded rod and the slider being connected by threads, a storage rod fixedly installed on the lower surface of the second connecting block, a lifting rod slidably connected to the inner cavity of the storage rod, a lifting block fixedly installed at the end of the lifting rod away from the storage rod, a drive rod fixedly installed on the outer surface of the slider, a second sliding groove opened on the outer surface of the lifting block, the drive rod and the second sliding groove being slidably connected, the upper surface of the second connecting block and the lower surface of the second fixed block being slidably connected, the lower surface of the lifting block and the upper surface of the traction block being fixedly connected, and the drive rod being inclined.

[0012] Furthermore, the stress mechanism includes a limiting block, a slot on the outer surface of the limiting block, a stress block on the outer surface of the limiting block, a stress rod fixedly installed on the outer surface of the limiting block, a third spring sleeved on the outer surface of the stress rod, an alarm block fixedly installed on the inner wall of the stress block, a locking rod slidably connected to the inner cavity of the alarm block, a locking ball movably connected to one end of the locking rod, a second pressing block fixedly installed on the outer surface of the locking rod, a second button on the outer surface of the alarm block, a second alarm fixedly installed on the outer surface of the alarm block, and a fourth spring sleeved on the end of the locking rod away from the locking ball.

[0013] Furthermore, the top of the limiting block and the lower surface of the second fixing block are fixedly connected, the stress block and the stress rod are slidably connected, the third spring is located between the stress block and the stress rod, the side of the stress block away from the third spring is tightly fitted with the outer surface of the limiting block, the locking ball and the locking groove are engaged, the second pressing block and the alarm block are slidably connected, the alarm block and the second connecting block are fixedly connected, the second button and the second alarm are electrically connected, and pressing the second button controls the second alarm to sound an alarm, there is a gap between the second button and the second pressing block, and the fourth spring is located between the inner wall of the alarm block and the second pressing block.

[0014] Furthermore, the traction mechanism includes a traction box, a rotating rod rotatably connected to the inner cavity of the traction box, a second motor provided on the outer surface of the traction box, a first bevel gear fixedly connected to both ends of the rotating rod, a second bevel gear rotatably connected to the inner cavity of the traction box, and a traction wheel fixedly connected to the outer surface of the second bevel gear.

[0015] Furthermore, there are two bevel gears, the first bevel gear and the second bevel gear, which mesh in pairs. There is a gap between the second bevel gears. The output end of the second motor is connected to the rotating rod. The axes of the induction heating coil and the cooling ring are on the same straight line and pass between the two traction wheels.

[0016] The technical solution provided in this application has at least the following technical effects or advantages:

[0017] 1. By employing a limiting component, this invention effectively solves the problem of wire exit angle deviation during continuous quenching of metal wires in existing process equipment. This deviation causes lateral tension on the wire during operation, leading to bending, shaking, and misalignment, disrupting wire straightness and severely impacting subsequent processing steps. The deviation also exacerbates friction between the wire and guide rollers, causing surface scratches, fuzzing, and wear. Continuous angular deviation further affects equipment operating accuracy, accelerates wear on transmission components, and reduces the reliability and product qualification rate of automated production lines. This invention, through its limiting component, stabilizes the wire exit angle, corrects exit deviation, and eliminates lateral tension during operation, thereby reducing bending, shaking, and misalignment during exit. This ensures wire straightness and flatness, guaranteeing subsequent processing. Simultaneously, it reduces friction between the wire and guide rollers, preventing surface scratches, fuzzing, and wear, improving surface quality and smoothness, thus ensuring equipment operating accuracy, reducing wear, and enhancing the reliability and product qualification rate of automated production lines.

[0018] 2. By employing a traction component, this invention effectively solves the problem of existing equipment's inability to stably regulate stress generated during traction. Unstable stress directly damages product quality and production stability, leading to bending, uneven shrinkage, or tension in the wire. Bending areas are prone to uneven quenching, resulting in stress concentration and micro-cracks after quenching, reducing the wire's strength and toughness and making it susceptible to breakage during use. If excessive traction force is not detected in time, the wire will be overstretched at high temperatures, causing thinning of the diameter, uneven cross-section, plastic deformation, and damage to the internal structure of the material, severely impacting product qualification rate and service life. This invention, through its traction component, maintains stable stress during wire traction, regulating stress to prevent both insufficient force leading to bending and excessive force leading to tension. It provides timely warnings when significant stress is generated and provides a buffering effect when traction force is high. Stress stability ensures uniform stress distribution during high-temperature quenching, effectively preventing bending, uneven shrinkage, or tension in the wire, improving wire strength, toughness, and overall performance, thereby increasing product qualification rate and service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure in Embodiment 1 of this application;

[0020] Figure 2 This is a schematic diagram of the traction component structure in Embodiment 1 of this application;

[0021] Figure 3 This is a schematic diagram of the limiting component structure in Embodiment 1 of this application;

[0022] Figure 4 This is a partial structural diagram of the movable block in Embodiment 1 of this application;

[0023] Figure 5 This is a schematic diagram of the fixing strip structure in Embodiment 1 of this application;

[0024] Figure 6 This is a schematic diagram of the second limiting mechanism structure in Embodiment 1 of this application;

[0025] Figure 7 This is a schematic diagram of the second fixing block structure in Embodiment 2 of this application;

[0026] Figure 8 This is a schematic diagram of the adjustment mechanism structure in Embodiment 2 of this application;

[0027] Figure 9 This is a schematic diagram of the stress mechanism structure in Embodiment 2 of this application;

[0028] Figure 10 This is a schematic diagram of the alarm block structure in Embodiment 2 of this application;

[0029] Figure 11 This is a schematic cross-sectional view of the traction mechanism in Embodiment 2 of this application.

[0030] In the diagram: 1. Main body of the equipment; 2. Collection rack; 3. Rotary drum; 4. Nickel-titanium alloy wire; 5. Limiting assembly; 51. First connecting block; 52. First threaded rod; 53. First motor; 54. First limiting mechanism; 541. Moving block; 542. Buffer block; 543. First limiting ring; 544. First sliding rod; 545. First spring; 546. First pressing block; 547. Fixing strip; 548. Second threaded rod; 549. Adjusting block; 5410. First alarm; 5411. First button; 55. First fixing block; 56. Second limiting mechanism; 561. Fixing ring; 562. First slide groove; 563. Second limiting ring; 564. Second sliding rod; 565. Second spring; 566. Gasket; 6. Traction assembly; 61. Traction frame; 62. Second fixing block; 63. Adjustment mechanism; 631. Second connecting block; 632. Third threaded rod; 633. Slider; 634. Storage rod; 635. Lifting rod; 636. Lifting block; 637. Drive rod; 638. Second slide groove; 64. Stress mechanism; 641. Limiting block; 642. Slot; 643. Stress block; 644. Stress rod; 645. Third spring; 646. Alarm block; 647. Locking rod; 648. Locking ball; 649. Second pressing block; 6410. Second button; 6411. Second alarm; 6412. Fourth spring; 65. Traction block; 66. Stress wheel; 67. Traction mechanism; 671. Traction box; 672. Rotating rod; 673. Second motor; 674. First bevel gear; 675. Second bevel gear; 676. Traction wheel; 7. Induction heating coil; 8. Cooling ring; 9. Water collection tank. Detailed Implementation

[0031] During the continuous quenching process of metal wire, the wire exit angle will deviate to a certain degree. This invention can stabilize the wire exit angle through the limiting component, correct the wire exit deviation, and eliminate lateral tension during operation. For process equipment that cannot stably adjust the stress generated during traction, this invention can maintain stress stability during the traction process of metal wire through the traction component, and adjust the stress to avoid bending due to insufficient force and tension due to excessive force. It can also issue an alarm in time when large stress is generated.

[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example 1:

[0033] Please see Figure 1 As shown, an automated heat treatment process device for nickel-titanium alloy includes a main body 1, a nickel-titanium alloy wire 4, an induction heating coil 7, and a cooling ring 8. A collection rack 2 is fixedly installed on the outer surface of the main body 1. A rotating drum 3 is rotatably connected to the inner cavity of the collection rack 2. The outer surface of the rotating drum 3 is wound with nickel-titanium alloy wire 4. An external water pipe is used to cool the quenched nickel-titanium alloy wire 4. A limit component 5 is provided on the outer surface of the collection rack 2. A traction component 6 is provided on the outer surface of the main body 1. An induction heating coil 7 and a water collection tank 9 are provided on the outer surface of the traction component 6. The cooling ring 8 is located in the inner cavity of the water collection tank 9. The traction component 6 pulls the nickel-titanium alloy wire 4, causing the rotating drum 3 to rotate on the collecting rack 2, so that the nickel-titanium alloy wire 4 is released from the rotating drum 3. The limiting component 5 is used to correct the position of the nickel-titanium alloy wire 4 when it exits, thereby improving the stability of the wire when it enters the traction component 6. The nickel-titanium alloy wire 4 is quenched by the induction heating coil 7, and the cooling ring 8 is used to cool the nickel-titanium alloy wire 4. The sprayed cooling water is collected in the inner cavity of the water collection tank 9. The traction component 6 can ensure the stability of the nickel-titanium alloy wire 4 during the traction process, thereby ensuring that the nickel-titanium alloy wire 4 is heated and cooled evenly, and improving the stable and efficient operation of the heat treatment process of the nickel-titanium alloy wire 4.

[0034] Please see Figure 1 and Figure 3As shown, the limiting component 5 includes a first connecting block 51, a first threaded rod 52 rotatably connected to the inner cavity of the first connecting block 51, a first motor 53 disposed on the outer surface of the first connecting block 51, a first limiting mechanism 54 slidably connected to the outer surface of the first connecting block 51, a first fixing block 55 fixedly mounted on the outer surface of the first connecting block 51, a second limiting mechanism 56 disposed at the top of the first fixing block 55, the outer surfaces of the first connecting block 51 and the collecting rack 2 fixedly connected, and the output end of the first motor 53 sleeved with the first threaded rod 52, for position correction of the nickel-titanium alloy wire 4. At this time, the operation of the first motor 53 drives the first threaded rod 52 to rotate inside the first connecting block 51. The rotation of the first threaded rod 52 drives the first limiting mechanism 54 to slide on the first connecting block 51. At this time, the first limiting mechanism 54 moves on the first connecting block 51 to cooperate with the nickel-titanium alloy wire 4 to be unwound on the rotating drum 3. The first limiting mechanism 54 provides initial limiting for the unwound nickel-titanium alloy wire 4. The second limiting mechanism 56 on the first fixed block 55 is used to provide secondary limiting for the nickel-titanium alloy wire 4, so that the nickel-titanium alloy wire 4 remains in a stable state during unwound operation and enters the subsequent process.

[0035] Please see Figure 4 , Figure 5 and Figure 6As shown, the first limiting mechanism 54 includes a moving block 541, a buffer block 542 slidably connected to the inner cavity of the moving block 541, a first limiting ring 543 fixedly installed on the upper surface of the buffer block 542, a first sliding rod 544 fixedly installed at both ends of the buffer block 542, a first spring 545 sleeved on the outer surface of the first sliding rod 544, a first pressing block 546 fixedly installed on the outer surface of the buffer block 542, a fixing strip 547 fixedly installed on the outer surface of the moving block 541, a second threaded rod 548 rotatably connected to the inner cavity of the fixing strip 547, an adjusting block 549 slidably connected to the outer surface of the fixing strip 547, a first alarm 5410 fixedly installed on the outer surface of the adjusting block 549, and a first button 5411 provided on the outer surface of the adjusting block 549. The moving block 541 and the first connecting block 51 are slidably connected, and the moving block 541 and the first threaded rod 52 are threadedly connected. The first sliding rod 544 and the moving block 541 are slidably connected. The first spring 545 is located between the buffer block 542 and the moving block 541. The adjusting block 549 and the second threaded rod 548 are threadedly connected, and the threads at both ends of the second threaded rod 548 are in opposite directions. The two sides of the first pressing block 546 are rounded, and the two sides of the first button 5411 are chamfered. When the buffer block 542 moves, the first pressing block 546 presses the first button 5411. The first alarm 5410 and the first button 5411 are electrically connected, and pressing the first button 5411 controls the first alarm 5410 to sound an alarm. The second limiting mechanism 56 includes... The system includes a fixing ring 561, which is fixedly connected to a first fixing block 55. A first sliding groove 562 is formed on the outer surface of the fixing ring 561. A second limiting ring 563 is provided in the middle of the fixing ring 561. A second sliding rod 564 is fixedly installed on the outer surface of the second limiting ring 563. A second spring 565 is sleeved on the outer surface of the second sliding rod 564. A washer 566 is slidably connected to the outer surface of the second sliding rod 564. The second spring 565 is located between the second limiting ring 563 and the washer 566. The washer 566 is slidably connected to the inner wall of the fixing ring 561 to prevent the second spring 565 from rubbing against the fixing ring 561. The second sliding rod 564 is slidably connected to the first sliding groove 562. There is a gap between the second sliding rod 564 and the inner wall of the first fixing block 55. During the positioning correction of the nickel-titanium alloy wire 4 after it comes off the coil, the first motor 53 drives the moving block 541 to move on the first connecting block 51. The first connecting block 51 is a stepper motor, which facilitates the control of the reciprocating speed of the moving block 541 to match the unwinding of the nickel-titanium alloy wire 4 in the rotating drum 3. The nickel-titanium alloy wire 4 passes through the inner cavity of the first limiting ring 543. When the nickel-titanium alloy wire 4 deviates, it squeezes the first limiting ring 543, causing the first limiting ring 543 to drive the buffer block 542 to slide within the inner cavity of the moving block 541. The movement of the buffer block 542 causes the first sliding rod 544 to slide within the inner cavity of the moving block 541 and squeeze the first spring 545. The elastic force of the first spring 545 causes the buffer block 542 to quickly return to its original position.The initial positioning and correction of the nickel-titanium alloy wire 4 is achieved. When the nickel-titanium alloy wire 4 and the first limiting ring 543 have a large offset, the first limiting ring 543 drives the buffer block 542 to slide significantly. At this time, the buffer block 542 drives the first pressing block 546 to press the first button 5411, causing the first alarm 5410 on the adjusting block 549 to sound an alarm, reminding the staff that the nickel-titanium alloy wire 4 and the first limiting ring 543 have a large offset and need maintenance. The distance between the adjusting block 549 and the first pressing block 546 can be adjusted by rotating the second threaded rod 548 to move the adjusting block 549 on the fixed bar 547, which facilitates triggering the alarm switch according to the set distance. Thus, measures can be taken when a certain amount of offset occurs as needed. The second limiting mechanism 56 is used to perform secondary positioning of the nickel-titanium alloy wire 4. The first limiting mechanism 54 is used to conform to the winding direction of the nickel-titanium alloy wire 4 on the rotating drum 3, and a moving limiting is used to reduce the offset when the wire comes off. The limiting mechanism 56 uses a fixed limiting method to correct the offset of the nickel-titanium alloy wire 4. During operation, the nickel-titanium alloy wire 4 passes through the inner cavity of the second limiting ring 563. At this time, the nickel-titanium alloy wire 4 compresses the second limiting ring 563, causing the second limiting ring 563 to move within the inner cavity of the fixed ring 561. This causes the second slide rod 564 to slide within the inner cavity of the first slide groove 562 and compress the second spring 565. The elastic force of the second spring 565 causes the second limiting ring 563 to quickly return to its original position, thereby limiting and correcting the offset of the nickel-titanium alloy wire 4, correcting the wire offset phenomenon, eliminating lateral tension during operation, and reducing bending, shaking, and deviation problems during wire exit. This ensures the straightness and flatness of the wire, guaranteeing subsequent processing. Simultaneously, it reduces friction between the wire and the guide wheel, preventing surface scratches, fuzzing, and wear, improving surface quality and smoothness, thus ensuring the operating accuracy of the equipment, reducing equipment wear, and improving the reliability and product qualification rate of the automated production line. Example 2:

[0036] Please see Figure 2 and Figure 6As shown, the traction assembly 6 includes a traction frame 61. A second fixing block 62 is fixedly mounted on the outer surface of the traction frame 61. An adjustment mechanism 63 is provided on the lower surface of the second fixing block 62. A stress mechanism 64 is provided on the lower surface of the second fixing block 62. A traction block 65 is provided on the lower surface of the adjustment mechanism 63. A stress wheel 66 is rotatably connected to the inner cavity of the traction block 65. When the nickel-titanium alloy wire 4 passes over the stress wheel 66, it is above the stress wheel 66 and is compressed by the stress wheel 66 to form stress. A traction mechanism 67 is provided on the outer surface of the traction frame 61. The water collection tank 9 and the traction frame 61 are fixedly connected. The induction heating coil 7 and the outer surface of the traction frame 61 are... The traction frame 61 and the main body 1 are fixedly connected. When the nickel-titanium alloy wire 4 is pulled, the traction mechanism 67 clamps and pulls the nickel-titanium alloy wire 4 and passes it through the traction frame 61. The height of the traction block 65 is adjusted by the adjustment mechanism 63 on the second fixed block 62, so that the position of the stress wheel 66 changes. This makes it easier for the nickel-titanium alloy wire 4 to remain horizontal when passing through the induction heating coil 7 and the cooling ring 8, so that it can be quenched and cooled evenly. The stress mechanism 64 has a buffer alarm effect when a large force is generated during the traction process to prevent the nickel-titanium alloy wire 4 from being pulled off.

[0037] Please see Figure 8 , Figure 9 and Figure 10As shown, the adjusting mechanism 63 includes a second connecting block 631. A third threaded rod 632 is rotatably connected to the inner cavity of the second connecting block 631. A slider 633 is slidably connected to the lower surface of the second connecting block 631. The third threaded rod 632 and the slider 633 are connected by threads. A storage rod 634 is fixedly installed on the lower surface of the second connecting block 631. A lifting rod 635 is slidably connected to the inner cavity of the storage rod 634. A lifting block 636 is fixedly installed at the end of the lifting rod 635 away from the storage rod 634. A drive rod 637 is fixedly installed on the outer surface of the slider 633. A second groove 638 is formed on the outer surface of the lifting block 636. The drive rod 637 and the second groove 638 are slidably connected. The upper surface of the second connecting block 631 and the second fixed block 62... The lower surfaces of the lifting block 636 and the upper surfaces of the traction block 65 are fixedly connected, and the drive rod 637 is inclined. The stress mechanism 64 includes a limiting block 641, a slot 642 on the outer surface of the limiting block 641, a stress block 643 on the outer surface of the limiting block 641, a stress rod 644 fixedly installed on the outer surface of the limiting block 641, a third spring 645 sleeved on the outer surface of the stress rod 644, an alarm block 646 fixedly installed on the inner wall of the stress block 643, a locking rod 647 slidably connected to the inner cavity of the alarm block 646, a locking ball 648 movably connected to one end of the locking rod 647, a second pressing block 649 fixedly installed on the outer surface of the locking rod 647, and a second button 6410 on the outer surface of the alarm block 646. A second alarm 6411 is fixedly installed on the outer surface of the alarm block 646. The second alarm 6411 and the first alarm 5410 have different timbre and loudness settings to facilitate differentiation of the problem and timely action. A fourth spring 6412 is sleeved on the end of the locking rod 647 away from the locking ball 648. The top of the limiting block 641 is fixedly connected to the lower surface of the second fixing block 62. The stress block 643 and the stress rod 644 are slidably connected. A third spring 645 is located between the stress block 643 and the stress rod 644. The side of the stress block 643 away from the third spring 645 is tightly fitted to the outer surface of the limiting block 641. The locking ball 648 is engaged with the locking groove 642. The second pressing block 649 is slidably connected to the alarm block 646. The alarm block 646 and the second connecting block 641 are connected. The connecting block 631 is fixedly connected, and the second button 6410 and the second alarm 6411 are electrically connected. Pressing the second button 6410 controls the second alarm 6411 to sound an alarm. There is a gap between the second button 6410 and the second pressing block 649. The fourth spring 6412 is located between the inner wall of the alarm block 646 and the second pressing block 649. When the nickel-titanium alloy wire 4 tilts during the traction process, the adjusting mechanism 63 adjusts the nickel-titanium alloy wire 4 to keep it horizontal when passing through the induction heating coil 7 and the cooling ring 8. The nickel-titanium alloy wire 4 is located above the stress wheel 66 when passing through the stress wheel 66, which can generate stress on the nickel-titanium alloy wire 4. By rotating the third threaded rod 632, the slider 633 is moved on the second connecting block 631.This causes the drive rod 637 to slide within the inner cavity of the second slide groove 638, while the lifting rod 635 slides within the inner cavity of the receiving rod 634. This changes the distance between the lifting block 636 and the second connecting block 631, and simultaneously alters the height of the stress wheel 66. This allows for adjustment of the stress on the nickel-titanium alloy wire 4, ensuring that the traction mechanism 67 remains horizontal from the stress wheel 66 to the traction mechanism 67 during traction. Consequently, when passing through the induction heating coil 7 and the cooling ring 8, the nickel-titanium alloy wire 4 is positioned between the induction heating coil 7 and the cooling ring 8. In the center, the nickel-titanium alloy wire 4 is quenched and cooled evenly. When a large traction force is generated, the nickel-titanium alloy wire 4 drags the stress wheel 66, thereby causing the second connecting block 631 to slide on the second fixed block 62. The sliding of the second connecting block 631 causes the alarm block 646 to move and compress the stress block 643, causing the stress block 643 to slide on the stress rod 644 and compress the third spring 645. At this time, the slot 642 and the ball 648 disengage, causing the lever 647 to be in the inner cavity of the alarm block 646. The sliding of lever 647 causes the second pressing block 649 to slide within the alarm block 646, compressing the fourth spring 6412. Simultaneously, the second pressing block 649 compresses the second button 6410, causing the second alarm 6411 to sound, alerting staff that the traction force is too high and maintenance is needed. The stress mechanism 64 buffers the breakage of the nickel-titanium alloy wire 4 under high traction force. When the traction force is normal, the locking ball 648 engages with the locking groove 642 on the limit block 641, maintaining the relative stability of the second connecting block 631, thus ensuring the stability of the stress wheel 66 during traction. Stress adjustment prevents bending due to insufficient force and tension due to excessive force. It provides timely alarms under high stress and buffers the traction force. Stress stability ensures uniform stress distribution during high-temperature quenching, effectively preventing bending, uneven shrinkage, or tension in the wire, improving wire strength, toughness, and overall performance, thereby increasing product qualification rate and service life.

[0038] Please see Figure 2 and Figure 11As shown, the traction mechanism 67 includes a traction box 671. A rotating rod 672 is rotatably connected to the inner cavity of the traction box 671. A second motor 673 is provided on the outer surface of the traction box 671. The second motor 673 is a stepper motor for easy control of the traction speed. Both ends of the rotating rod 672 are fixedly connected to a first bevel gear 674. A second bevel gear 675 is rotatably connected to the inner cavity of the traction box 671. A traction wheel 676 is fixedly connected to the outer surface of the second bevel gear 675. There are two bevel gears, the first bevel gear 674 and the second bevel gear 675, and they mesh in pairs. There is a gap between the second bevel gears 675. The output end of the second motor 673 is sleeved with the rotating rod 672. The axes of the induction heating coil 7 and the cooling ring 8 are on the same straight line and pass between the two traction wheels 676. When the nickel-titanium alloy wire 4 is pulled, the operation of the second motor 673 drives the rotating rod 672 to rotate in the inner cavity of the traction box 671, so that the two first bevel gears 674 rotate. The rotation of the first bevel gears 674 drives the second bevel gears 675 to rotate, thereby driving the two traction wheels 676 to rotate and pulling the nickel-titanium alloy wire 4 that passes between the traction wheels 676 to move.

[0039] In summary, the traction assembly 6 pulls the nickel-titanium alloy wire 4, causing the rotating drum 3 to rotate on the collecting rack 2, thus releasing the nickel-titanium alloy wire 4 from the rotating drum 3. The limiting assembly 5 is used to correct the position of the nickel-titanium alloy wire 4 when it exits the traction assembly 6, thereby improving the stability of the wire when it enters the traction assembly 6. The induction heating coil 7 quenches the nickel-titanium alloy wire 4, and the cooling ring 8 is used to cool the nickel-titanium alloy wire 4. The sprayed cooling water is collected in the inner cavity of the water collection tank 9. The traction assembly 6 can ensure the stability of the nickel-titanium alloy wire 4 during the traction process, thereby ensuring uniform heating and cooling of the nickel-titanium alloy wire 4 and improving the stable and efficient operation of the heat treatment process of the nickel-titanium alloy wire 4. When correcting the position of the nickel-titanium alloy wire 4, the operation of the first motor 53 drives the first threaded rod 52 to rotate in the inner cavity of the first connecting block 51. The rotation of the first threaded rod 52 drives the first limiting mechanism 54 to slide on the first connecting block 51. At this time, the first limiting mechanism... Mechanism 54 moves on the first connecting block 51 to facilitate the unwinding of the nickel-titanium alloy wire 4 on the rotating drum 3. The first limiting mechanism 54 provides initial limiting for the unwinding of the nickel-titanium alloy wire 4. The second limiting mechanism 56 on the first fixing block 55 provides secondary limiting for the nickel-titanium alloy wire 4, ensuring that the nickel-titanium alloy wire 4 remains stable during unwinding and enters subsequent processes. When the nickel-titanium alloy wire 4 is pulled, the pulling mechanism 67 clamps and pulls the nickel-titanium alloy wire 4 and passes it through the pulling frame 61. The adjusting mechanism 63 on the second fixing block 62 adjusts the height of the pulling block 65, causing the position of the stress wheel 66 to change. This ensures that the nickel-titanium alloy wire 4 remains horizontal when passing through the induction heating coil 7 and the cooling ring 8, thus enabling uniform quenching and cooling. The stress mechanism 64 provides a buffer alarm effect when a large pulling force is generated during the pulling process, preventing the nickel-titanium alloy wire 4 from being broken.

[0040] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0041] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. An automated heat treatment process device for nickel-titanium alloys, comprising a main body (1), a nickel-titanium alloy wire (4), an induction heating coil (7), and a cooling ring (8), characterized in that, A collection rack (2) is fixedly installed on the outer surface of the main body (1) of the equipment. A rotating drum (3) is rotatably connected to the inner cavity of the collection rack (2). A nickel-titanium alloy wire (4) is wound on the outer surface of the rotating drum (3). A limit component (5) is provided on the outer surface of the collection rack (2). A traction component (6) is provided on the outer surface of the main body (1). An induction heating coil (7) and a water collection tank (9) are provided on the outer surface of the traction component (6). The cooling ring (8) is located in the inner cavity of the water collection tank (9). The limiting component (5) includes a first connecting block (51), a first threaded rod (52) is rotatably connected to the inner cavity of the first connecting block (51), a first motor (53) is provided on the outer surface of the first connecting block (51), a first limiting mechanism (54) is slidably connected to the outer surface of the first connecting block (51), a first fixing block (55) is fixedly installed on the outer surface of the first connecting block (51), a second limiting mechanism (56) is provided at the top of the first fixing block (55), the outer surfaces of the first connecting block (51) and the collection rack (2) are fixedly connected, and the output end of the first motor (53) is sleeved with the first threaded rod (52).

2. The automated heat treatment equipment for nickel-titanium alloys as described in claim 1, characterized in that, The first limiting mechanism (54) includes a moving block (541), a buffer block (542) is slidably connected to the inner cavity of the moving block (541), a first limiting ring (543) is fixedly installed on the upper surface of the buffer block (542), a first slide rod (544) is fixedly installed at both ends of the buffer block (542), a first spring (545) is sleeved on the outer surface of the first slide rod (544), a first pressing block (546) is fixedly installed on the outer surface of the buffer block (542), a fixing strip (547) is fixedly installed on the outer surface of the moving block (541), a second threaded rod (548) is rotatably connected to the inner cavity of the fixing strip (547), an adjusting block (549) is slidably connected to the outer surface of the fixing strip (547), a first alarm (5410) is fixedly installed on the outer surface of the adjusting block (549), and a first button (5411) is provided on the outer surface of the adjusting block (549).

3. The automated heat treatment equipment for nickel-titanium alloys as described in claim 2, characterized in that, The moving block (541) and the first connecting block (51) are slidably connected, and the moving block (541) and the first threaded rod (52) are connected by threads. The first sliding rod (544) and the moving block (541) are slidably connected. The first spring (545) is located between the buffer block (542) and the moving block (541). The adjusting block (549) and the second threaded rod (548) are connected by threads, and the threads at both ends of the second threaded rod (548) are opposite in direction. The two sides of the first pressing block (546) are rounded, and the two sides of the first button (5411) are chamfered. When the buffer block (542) moves, the first pressing block (546) presses the first button (5411). The first alarm (5410) and the first button (5411) are electrically connected, and pressing the first button (5411) controls the first alarm (5410) to sound an alarm.

4. The automated heat treatment equipment for nickel-titanium alloys as described in claim 1, characterized in that, The second limiting mechanism (56) includes a fixed ring (561), which is fixedly connected to a first fixed block (55). A first sliding groove (562) is provided on the outer surface of the fixed ring (561). A second limiting ring (563) is provided in the middle part of the fixed ring (561). A second sliding rod (564) is fixedly installed on the outer surface of the second limiting ring (563). A second spring (565) is sleeved on the outer surface of the second sliding rod (564). A washer (566) is slidably connected to the outer surface of the second sliding rod (564). The second spring (565) is located between the second limiting ring (563) and the washer (566). The washer (566) is slidably connected to the inner wall of the fixed ring (561). The second sliding rod (564) is slidably connected to the first sliding groove (562). There is a gap between the second sliding rod (564) and the inner wall of the first fixed block (55).

5. The automated heat treatment equipment for nickel-titanium alloys as described in claim 1, characterized in that, The traction assembly (6) includes a traction frame (61), a second fixing block (62) is fixedly installed on the outer surface of the traction frame (61), an adjustment mechanism (63) is provided on the lower surface of the second fixing block (62), a stress mechanism (64) is provided on the lower surface of the second fixing block (62), a traction block (65) is provided on the lower surface of the adjustment mechanism (63), a stress wheel (66) is rotatably connected to the inner cavity of the traction block (65), a traction mechanism (67) is provided on the outer surface of the traction frame (61), the water collection tank (9) and the traction frame (61) are fixedly connected, the induction heating coil (7) and the outer surface of the traction frame (61) are fixedly connected, and the traction frame (61) and the equipment body (1) are fixedly connected.

6. The automated heat treatment equipment for nickel-titanium alloys as described in claim 5, characterized in that, The adjusting mechanism (63) includes a second connecting block (631), a third threaded rod (632) is rotatably connected to the inner cavity of the second connecting block (631), and a slider (633) is slidably connected to the lower surface of the second connecting block (631). The third threaded rod (632) and the slider (633) are connected by threads. A storage rod (634) is fixedly installed on the lower surface of the second connecting block (631). A lifting rod (635) is slidably connected to the inner cavity of the storage rod (634). The lifting rod (635) is located away from the storage rod. A lifting block (636) is fixedly installed at one end of the slider (633). A drive rod (637) is fixedly installed on the outer surface of the slider (633). A second groove (638) is opened on the outer surface of the lifting block (636). The drive rod (637) and the second groove (638) are slidably connected. The upper surface of the second connecting block (631) and the lower surface of the second fixing block (62) are slidably connected. The lower surface of the lifting block (636) and the upper surface of the traction block (65) are fixedly connected. The drive rod (637) is inclined.

7. The automated heat treatment equipment for nickel-titanium alloys as described in claim 5, characterized in that, The stress mechanism (64) includes a limiting block (641), a slot (642) is provided on the outer surface of the limiting block (641), a stress block (643) is provided on the outer surface of the limiting block (641), a stress rod (644) is fixedly installed on the outer surface of the limiting block (641), a third spring (645) is sleeved on the outer surface of the stress rod (644), and an alarm block (646) is fixedly installed on the inner wall of the stress block (643). The inner cavity is slidably connected to a locking rod (647), one end of which is movably connected to a locking ball (648). A second pressing block (649) is fixedly installed on the outer surface of the locking rod (647). A second button (6410) is provided on the outer surface of the alarm block (646). A second alarm (6411) is fixedly installed on the outer surface of the alarm block (646). A fourth spring (6412) is sleeved on the end of the locking rod (647) away from the locking ball (648).

8. The automated heat treatment equipment for nickel-titanium alloys as described in claim 7, characterized in that, The top of the limiting block (641) is fixedly connected to the lower surface of the second fixing block (62). The stress block (643) and the stress rod (644) are slidably connected. The third spring (645) is located between the stress block (643) and the stress rod (644). The side of the stress block (643) away from the third spring (645) is tightly fitted to the outer surface of the limiting block (641). The locking ball (648) and the locking groove (642) are engaged. The second pressing block (649) and the alarm The alarm block (646) is slidably connected, the alarm block (646) is fixedly connected to the second connecting block (631), the second button (6410) is electrically connected to the second alarm (6411), and pressing the second button (6410) controls the second alarm (6411) to sound an alarm. There is a gap between the second button (6410) and the second pressing block (649), and the fourth spring (6412) is located between the inner wall of the alarm block (646) and the second pressing block (649).

9. The automated heat treatment equipment for nickel-titanium alloys as described in claim 7, characterized in that, The traction mechanism (67) includes a traction box (671), a rotating rod (672) is rotatably connected to the inner cavity of the traction box (671), a second motor (673) is provided on the outer surface of the traction box (671), a first bevel gear (674) is fixedly connected to both ends of the rotating rod (672), a second bevel gear (675) is rotatably connected to the inner cavity of the traction box (671), and a traction wheel (676) is fixedly connected to the outer surface of the second bevel gear (675).

10. The automated heat treatment equipment for nickel-titanium alloys as described in claim 9, characterized in that, There are two bevel gears (674 and 675) of equal size, and the first bevel gear (674) and the second bevel gear (675) mesh in pairs. There is a gap between the second bevel gears (675). The output end of the second motor (673) is sleeved with the rotating rod (672). The axes of the induction heating coil (7) and the cooling ring (8) are on the same straight line and pass between the two traction wheels (676).

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