Special induction quenching machine tool for gear and quenching process

Abstract

The invention relates to the technical field of quenching, in particular to a special induction quenching machine tool for a gear and a quenching process. The technical problem to be solved is that the quenching radius cannot be adjusted when an existing induction quenching machine tool machines a gear. According to the technical scheme, the device comprises a base, the top of the base is fixedly connected with an L-shaped supporting frame, the device further comprises a heating adjusting mechanism, the heating adjusting mechanism comprises an L-shaped sliding frame, and the top of the L-shaped supporting frame is slidably connected with the L-shaped sliding frame in a penetrating mode. According to the invention, the metal gear downwards extrudes the pressing rod, so that the piston head drives the hydraulic oil to enter the limiting cylinder from the waterproof housing, thereby pushing the measuring slide rod to contact with the tooth top surface of the metal gear, and achieving the measurement of the outer diameter of the metal gear, and meanwhile, the hydraulic oil in the limiting cylinder enters the limiting ring through the first hose. The damping sliding block drives the rotating ring to drive the stepped sliding frame to move, so that the coil moves away from the metal gear, the quenching radius of the metal gear is adjusted, and the metal gear quenching device adapts to metal gears of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of quenching, and in particular to a special induction quenching machine tool for gears and a quenching process. Background Art

[0002] An induction hardening machine is a device that uses a high-frequency magnetic field to generate high-frequency eddy currents on the surface of metal parts, thereby quenching metal parts. Existing induction hardening machines for quenching metal gears are usually designed with a fixed quenching radius and cannot be adjusted according to the sizes of different gears, making the induction hardening machine less adaptable to gears of different specifications, which in turn leads to local over-quenching or under-quenching of the gears, affecting production efficiency and gear quality. Therefore, there is an urgent need for a gear-specific induction hardening machine and quenching process that can adjust the gear quenching radius. Summary of the invention

[0003] In order to overcome the shortcoming that the quenching radius of existing induction hardening machines cannot be adjusted when processing gears, the technical problem to be solved is to provide a gear-specific induction hardening machine tool and a quenching process that can adjust the gear quenching radius.

[0004] The technical scheme is as follows: a gear-specific induction hardening machine tool comprises a base, an L-shaped support frame is fixedly connected to the top of the base, and also comprises a heating adjustment mechanism, the heating adjustment mechanism comprises an L-shaped sliding frame, the top of the L-shaped support frame is slidably connected to the L-shaped sliding frame, a threaded support plate is fixedly connected to the L-shaped sliding frame, a first spiral groove is provided on the threaded support plate, a step slide column is slidably connected in the first spiral groove, a plurality of step slide columns are spirally evenly distributed at the bottom of the step slide column, a plurality of step slide columns are provided with a step groove on one side, and a plurality of adjacent step slide columns are in contact with each other through the step groove, wherein the step slide column at the spiral head end is fixedly connected to the bottom of the step slide column, and a sliding support plate is fixedly connected to one side of the step slide column, and the sliding support plate is spirally evenly distributed with a plurality of step slide columns. The step groove of one of the distributed step sliding frames is in sliding contact, and a magnetic-blocking sleeve is fixedly connected to the bottom of several step sliding frames. A supporting shell is fixedly connected to one side of the L-shaped support frame, and a second spiral groove is opened inside the supporting shell. Several magnetic-blocking sleeves are in sliding contact with the second spiral groove, and several magnetic-blocking sleeves are slidably clamped with rotating support shafts at the bottom. Several rotating support shafts are fixed with coils on the top, and a measuring and adjusting mechanism is provided on the step sliding frame at the spiral end. When the measuring and adjusting mechanism is active, it is used to drive the coil to adjust the quenching radius of the metal gear. Several articulated rods are evenly distributed in a spiral shape below the several rotating support shafts, and several articulated rods correspond to several rotating support shafts. Adjacent articulated rods are hinged in an upper and lower manner, and several articulated rods located above are connected to the corresponding rotating support shafts.

[0005] Preferably, the heating adjustment mechanism also includes a second sliding support frame, wherein the bottoms of the two hinged rods located below are rotatably connected to the second sliding support frame, the second sliding support frame is slidably connected to the first sliding support frame, and the first sliding support frame is slidably connected to the annular groove set in the support shell.

[0006] Preferably, the measuring and adjusting mechanism includes a first fixed support frame, the first fixed support frame is fixedly connected to the L-shaped support frame, the top of the first fixed support frame is rotatably connected to a rotating support frame, the top of the rotating support frame is fixedly connected to a limiting cylinder, and a measuring slide rod is slidably connected in the limiting cylinder.

[0007] Preferably, the measuring and adjusting mechanism also includes a limiting ring, which is fixedly connected to the outer wall of the supporting shell, an arc groove is opened on the inner wall of the limiting ring, a first hose is fixedly connected between the arc groove and the limiting cylinder, a rotating ring is sealingly rotatably connected to the inner wall of the limiting ring, the rotating ring contacts the bottom of the threaded support disk, a damping slider is fixedly connected to the outer wall of the rotating ring, the damping slider is sealingly slidably connected to the arc groove of the limiting ring, a second fixed support frame is fixedly connected to the rotating ring, a third sliding support frame is slidably connected in the second fixed support frame, and the third sliding support frame is fixed to the stepped sliding frame at the spiral end.

[0008] Preferably, it also includes a driving and adjusting mechanism, which includes an electric telescopic rod, an electric telescopic rod fixedly installed in the base, a telescopic end of the electric telescopic rod fixedly connected to a step support column, an outer wall of the step support column is in contact with one side of the rotating support frame, a first support plate is fixedly connected to the outer wall of the step support column, a guide push rod is fixedly connected to the first support plate, the guide push rod is in through-sliding contact with the first fixed support frame, and the guide push rod is in through-movable contact with the rotating support frame, embedded fixed limiting beads are evenly distributed circumferentially on the inner wall of the rotating support frame, guide grooves are evenly distributed circumferentially on the outer wall of the guide push rod, the limiting beads are in sliding contact with the guide grooves, and a spline groove matching the guide push rod is provided at the bottom of the L-shaped sliding frame.

[0009] Preferably, the driving and adjusting mechanism also includes a waterproof shell, the waterproof shell is fixedly connected to the top of the step support column, a piston head is slidably connected to the inside of the waterproof shell, the waterproof shell is filled with hydraulic oil below the piston head, a first spring is connected between the waterproof shell and the piston head, a second hose is fixedly connected between the inside of the waterproof shell and the limit cylinder, and a pressure rod is rotatably connected to the top of the piston head.

[0010] Preferably, the drive adjustment mechanism also includes a motor, which is installed inside the waterproof shell, and the output shaft of the motor is fixedly connected to the first driving gear. A sealed rotating cylinder is rotatably connected to the top of the waterproof shell, and the sealed rotating cylinder is slidably connected to the pressure rod, and the sealed rotating cylinder is movably connected to the piston head. A first driven gear is fixedly connected to the bottom of the sealed rotating cylinder, and the first driven gear is meshed with the first driving gear.

[0011] Preferably, the drive adjustment mechanism also includes a clamping claw, and rectangular grooves are evenly distributed on the top of the sealing rotating cylinder. The clamping claw is slidably connected in the rectangular groove. The top of the clamping claw is chamfered, and a second spring is connected between the rectangular groove and the clamping claw.

[0012] Preferably, a gear quenching mechanism is also included, which includes a liquid cylinder, a liquid cylinder is fixedly connected to the top of the base, the liquid cylinder is filled with quenching liquid, a second support plate is fixedly connected to the inner wall of the liquid cylinder, a second driving gear is rotatably connected to the second support plate, a driving screw is fixedly connected to the second driving gear, a driving screw is threadedly connected to a driving threaded plate, the driving threaded plate is fixed to the step support column, an impeller is rotatably connected to the top of the base, a second driven gear is fixedly connected to the top of the impeller, the impeller and the second driven gear are both in contact with the telescopic end sleeve of the electric telescopic rod, and the second driven gear is meshed with the second driving gear.

[0013] Preferably, a quenching process of a gear-specific induction quenching machine tool comprises the following steps: S1: The staff places the metal gear on the top of the clamp and presses the metal gear downward to make the clamp move and engage the metal gear through friction, and the metal gear presses the pressure rod downward, so that the piston head drives the hydraulic oil from the waterproof housing through the second hose into the limit cylinder, thereby pushing the measuring slide bar to contact the tooth top surface of the metal gear to achieve the measurement of the outer diameter of the metal gear. The hydraulic oil in the limit cylinder enters the limit ring through the first hose, thereby driving the rotating ring to rotate, so that the second fixed support frame drives the step sliding frame to move through the third sliding support frame, and then the step sliding frame controls the rotating support shaft through the magnetic blocking sleeve to drive the coil to move, thereby achieving the adjustment of the quenching radius of the metal gear; S2: The staff starts the electric telescopic rod, so that the step support column drives the guide push rod to push the L-shaped sliding frame upward through the first support plate, and then drives the step slide column to move upward through the threaded support plate, so that the step slide frames forming the ring structure drive the magnetic blocking sleeves at the bottom of each to move upward and away from the coil synchronously, and the step support column moves upward through the waterproof shell to drive the sealing rotating cylinder to move synchronously, and then drives the metal gear to move to the inner center of the support shell through the clamping claw. The staff closes the electric telescopic rod and starts the motor, so that the output shaft of the motor drives the clamping claw to drive the metal gear to rotate, and then the staff starts the external high-frequency power supply, so that the coil generates a high-frequency magnetic field, and the metal gear generates a high-frequency eddy current and is quickly heated, thereby achieving the heating of the metal gear; S3: The staff stops energizing the coil and restarts the electric telescopic rod, so that the step support column drives the sealed rotating cylinder to move downward through the waterproof housing, and then drives the metal gear to move through the clamping claw. The step support column moves downward so that the driving threaded plate drives the driving screw to rotate, thereby driving the impeller to stir the quenching liquid, so that the quenching liquid can fully exchange heat. When the electric telescopic rod is fully retracted, it is closed, and the metal gear is completely immersed in the quenching liquid. The heat of the metal gear is absorbed by the quenching liquid, and the quenching of the metal gear is achieved; S4: The staff restarts the electric telescopic rod, so that the step support column drives the sealed rotating cylinder to move synchronously through the waterproof shell, so that the clamp drives the metal gear to reset upward. The staff closes the electric telescopic rod and pulls out the metal gear upward to complete the quenching process of the metal gear.

[0014] Beneficial effects of the present invention: 1. The present invention squeezes the pressure rod downward through the metal gear, so that the piston head drives the hydraulic oil from the waterproof shell through the second hose into the limit cylinder, thereby pushing the measuring slide bar to contact the tooth top surface of the metal gear, and realizing the measurement of the outer diameter of the metal gear. At the same time, the hydraulic oil in the limit cylinder enters the limit ring through the first hose, and then the hydraulic oil drives the rotating ring to rotate through the damping slider, so that the rotating ring controls the third sliding support frame through the second fixed support frame to drive the step sliding frame to move, and the movement of the step sliding frame causes the magnetic blocking sleeve to slide along the second spiral groove of the support shell, so that the magnetic blocking sleeve drives the coil to move through the rotating support shaft, thereby realizing the adjustment of the quenching radius of the metal gear, so that the device of the present invention can adapt to metal gears of different sizes, improves the versatility and flexibility of the device of the present invention, improves the production efficiency and reduces the production cost.

[0015] 2. The present invention absorbs high-frequency magnetic fields and generates high-frequency eddy currents through a magnetic-resistance sleeve that does not form a ring structure, and transmits the high-frequency eddy currents to the earth through the wire, thereby shielding the high-frequency magnetic field for the coil inside the magnetic-resistance sleeve, preventing the high-frequency magnetic field from heating the coil inside the magnetic-resistance sleeve, protecting the coil from interference from the high-frequency magnetic field, thereby increasing the service life of the coil and improving the safety of the device.

[0016] 3. In the process of the step support column moving downward, the present invention drives the driving threaded plate to move downward synchronously, so that the driving threaded plate drives the driving screw to rotate, and the driving screw rotates through the second driving gear to drive the second driven gear to rotate, thereby causing the impeller to rotate and stir the quenching liquid. When the metal gear is completely immersed in the quenching liquid, the rotation of the metal gear makes the speed at which the quenching liquid contacts the metal gear faster, so that the heat of the metal gear can be more fully taken away, achieving the quenching effect, and the quenching liquid is stirred by the impeller, so that the cold quenching liquid at the bottom of the liquid storage cylinder and the hot quenching liquid after quenching at the top can fully exchange heat, thereby further accelerating the removal of heat from the metal gear and improving the quenching efficiency of the metal gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A half-section schematic diagram of the base of the present invention; Figure 3 It is a first-view exploded schematic diagram of the heating adjustment mechanism of the present invention; Figure 4 It is a second perspective exploded schematic diagram of the heating adjustment mechanism of the present invention; Figure 5 It is a structural schematic diagram of the supporting shell of the present invention; Figure 6 It is a partial cutaway schematic diagram of the support housing of the present invention; Figure 7 It is a structural schematic diagram of the ladder sliding frame of the present invention; Figure 8 A half-section schematic diagram of a step slide column of the present invention; Fig. 9 It is a structural schematic diagram of the sliding support plate of the present invention; Fig.10 It is a partial cutaway schematic diagram of the limiting ring of the present invention; Fig.11 For the present invention Fig.10 Enlarged view of point A in the middle; Fig.12 A half-section schematic diagram of the waterproof housing of the present invention; Fig.13 It is a partial cutaway schematic diagram of the rotating support frame of the present invention.

[0018] Description of the accompanying drawings: 1_base, 2_L-shaped support frame, 3_heating adjustment mechanism, 301_L-shaped sliding frame, 302_threaded support plate, 303_step slide column, 304_step slide frame, 305_magnetic blocking sleeve, 306_support shell, 307_rotation support shaft, 308_coil, 309_first sliding support frame, 310_second sliding support frame, 311_hinge rod, 312_sliding support plate, 4_measuring adjustment mechanism, 401_first fixed support frame, 402_rotation support frame, 403_limiting cylinder, 404_measuring slide bar, 405_limiting ring, 406_damping slider, 407_rotation ring, 408 _Second fixed support frame, 409_Third sliding support frame, 5_Drive adjustment mechanism, 501_Electric telescopic rod, 502_Step support column, 503_First support plate, 504_Guide push rod, 505_Limiting bead, 506_Waterproof shell, 507_Piston head, 508_Pressure rod, 509_First driving gear, 510_Motor, 511_First driven gear, 512_Sealed rotating cylinder, 513_Clamp, 6_Gear quenching mechanism, 601_Liquid storage cylinder, 602_Second support plate, 603_Second driving gear, 604_Drive screw, 605_Drive threaded plate, 606_Second driven gear, 607_Impeller. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Example 1 A gear-specific induction hardening machine, such as Figure 1-Figure 13As shown, the base 1 includes a base 1, an L-shaped support frame 2 is fixedly connected to the top of the base 1, and a heating adjustment mechanism 3 is also included. The heating adjustment mechanism 3 includes an L-shaped sliding frame 301, and the top of the L-shaped support frame 2 is slidably connected to the L-shaped sliding frame 301. A threaded support plate 302 is fixedly connected to the L-shaped sliding frame 301, and a first spiral groove is provided on the threaded support plate 302. A step slide column 303 is slidably connected in the first spiral groove. A plurality of step slide frames 304 are evenly distributed in a spiral shape at the bottom of the step slide column 303, and a plurality of step slide frames 304 are provided on one side. There is a step groove, and a plurality of adjacent step sliding frames 304 are in contact with each other through the step groove, wherein the step sliding frame 304 at the spiral head end is fixedly connected to the bottom of the step sliding column 303, and a sliding support plate 312 is fixedly connected to one side of the step sliding frame 304, and the sliding support plate 312 is in sliding contact with the step groove of one of the step sliding frames 304 that is evenly distributed in a spiral shape among the plurality of step sliding frames 304, and a support shell 306 is fixedly connected to one side of the L-shaped support frame 2, and a second spiral groove is opened inside the support shell 306, and a plurality of step sliding frames 304 The bottom of each of the plurality of magnetic-blocking sleeves 305 is fixedly connected, and a plurality of magnetic-blocking sleeves 305 are in sliding contact with the second spiral groove. The bottom of each of the plurality of magnetic-blocking sleeves 305 is slidably connected with a rotating support shaft 307, and a plurality of rotating support shafts 307 are fixedly connected with a coil 308 on their tops. The coil 308 is connected to an external high-frequency power source through a first wire, and the coil 308 can generate a high-frequency magnetic field through the external high-frequency power source, thereby heating the metal gear. The magnetic-blocking sleeve 305 is connected to the external earth through a second wire, and can shield the high-frequency magnetic field for the coil 308 inside the magnetic-blocking sleeve 305, thereby preventing the high-frequency magnetic field from A coil 308 is heated in a high-frequency magnetic field in a high-frequency magnetic field in a magnetic-resistance sleeve 305, wherein a measuring and adjusting mechanism 4 is arranged on the stepped sliding frame 304 at the spiral end, and the measuring and adjusting mechanism 4 is used to drive the coil 308 to adjust the quenching radius of the metal gear when it moves, and a plurality of articulated rods 311 are arranged below the plurality of rotating support shafts 307, and the plurality of articulated rods 311 are evenly distributed in a spiral shape and correspond to the plurality of rotating support shafts 307, and the adjacent articulated rods 311 are articulated in an upper and lower manner, and the plurality of articulated rods 311 located above are all fixedly connected to the corresponding rotating support shafts 307.

[0021] The heating adjustment mechanism 3 also includes a second sliding support frame 310, wherein the bottoms of the two hinged rods 311 located below are both rotatably connected to the second sliding support frame 310, and the second sliding support frame 310 is slidably connected to the first sliding support frame 309, and the first sliding support frame 309 is slidably connected to the annular groove set in the support shell 306, and the first sliding support frame 309 is used to provide support for the rotating support shaft 307.

[0022] The measuring and adjusting mechanism 4 includes a first fixed support frame 401, which is fixedly connected to the L-shaped support frame 2. The top of the first fixed support frame 401 is rotatably connected to a rotating support frame 402. The top of the rotating support frame 402 is fixedly connected to a limiting cylinder 403. A measuring slide rod 404 is slidably connected in the limiting cylinder 403. The measuring slide rod 404 is used to measure the outer diameter of the metal gear. The diameter of the measuring slide rod 404 is larger than the tooth pitch of the metal gear, which prevents the measuring slide rod 404 from being inserted between the two teeth of the metal gear, resulting in low accuracy when the measuring slide rod 404 measures the outer diameter of the metal gear.

[0023] The measuring and adjusting mechanism 4 also includes a limit ring 405, which is fixedly connected to the outer wall of the supporting shell 306, and a circular arc groove 4051 is opened on the inner wall of the limit ring 405. A first hose is fixedly connected between the circular arc groove 4051 and the limit cylinder 403 in a communicating manner. A rotating ring 407 is sealingly and rotatably connected to the inner wall of the limit ring 405. The rotating ring 407 contacts the bottom of the threaded support disk 302, and a damping slider 406 is fixedly connected to the outer wall of the rotating ring 407. One side of the damping slider 406 is arc-shaped, which is convenient for the hydraulic oil to push the damping slider 406 to slide. The damping slider 406 is sealed and slidably connected to the circular arc groove 4051 of the limit ring 405, and a second fixed support frame 408 is fixedly connected to the rotating ring 407. A third sliding support frame 409 is slidably connected inside the second fixed support frame 408, and the third sliding support frame 409 is fixedly connected to the stepped sliding frame 304 at the spiral end.

[0024] The drive adjustment mechanism 5 is also included, which includes an electric telescopic rod 501. The electric telescopic rod 501 is fixedly installed in the base 1. The telescopic end of the electric telescopic rod 501 is fixedly connected to a step support column 502. The outer wall of the step support column 502 is in contact with one side of the rotating support frame 402. A first support plate 503 is fixedly connected to the outer wall of the step support column 502. A guide push rod 504 is fixedly connected to the first support plate 503. The guide push rod 504 is in through-sliding contact with the first fixed support frame 401, and the guide push rod 504 is in through-moving contact with the rotating support frame 402. Embedded fixed limiting beads 505 are evenly distributed circumferentially on the inner wall of the rotating support frame 402. Guide grooves are evenly distributed circumferentially on the outer wall of the guide push rod 504. The limiting beads 505 are in sliding contact with the guide grooves. A spline groove cooperating with the guide push rod 504 is provided at the bottom of the L-shaped sliding frame 301, so that the L-shaped sliding frame 301 can be clamped with the guide push rod 504.

[0025] The driving and adjusting mechanism 5 also includes a waterproof shell 506, a waterproof shell 506 is fixedly connected to the top of the stepped support column 502, a piston head 507 is slidably connected through the waterproof shell 506, the waterproof shell 506 is filled with hydraulic oil below the piston head 507, a first spring is connected between the waterproof shell 506 and the piston head 507, a second hose is connected and fixedly connected between the inside of the waterproof shell 506 and the limiting cylinder 403, a pressure rod 508 is rotatably connected to the top of the piston head 507, the pressure rod 508 is stepped, and it is convenient for the pressure rod 508 to move downward and be squeezed by force, and the piston head 507 can drive the measuring slide bar 404 and the damping slide bar 406 to slide through the hydraulic oil, thereby adjusting the gear quenching radius of the device.

[0026] The driving and adjusting mechanism 5 also includes a motor 510, and the motor 510 is fixedly installed inside the waterproof shell 506. The output shaft of the motor 510 is fixedly connected to the first driving gear 509. The top of the waterproof shell 506 is rotatably connected to a sealed rotating cylinder 512. The sealed rotating cylinder 512 is slidably connected to the pressure rod 508, and the top of the pressure rod 508 can be lower than the top of the sealed rotating cylinder 512. The sealed rotating cylinder 512 is movably connected to the piston head 507. The bottom of the sealed rotating cylinder 512 is fixedly connected to the first driven gear 511, and the first driven gear 511 is meshed with the first driving gear 509.

[0027] The driving and adjusting mechanism 5 also includes a clamping jaw 513. A rectangular groove is evenly distributed on the top of the sealing rotating cylinder 512. The clamping jaw 513 is slidably connected in the rectangular groove. The top of the clamping jaw 513 is chamfered. A second spring is connected between the rectangular groove and the clamping jaw 513. The second spring has a large elastic coefficient and is used to prevent the gear from escaping from the clamping of the clamping jaw 513.

[0028] The gear quenching mechanism 6 is also included, and the gear quenching mechanism 6 includes a liquid cylinder 601. The liquid cylinder 601 is fixedly connected to the top of the base 1. The liquid cylinder 601 is filled with quenching liquid. The inner wall of the liquid cylinder 601 is fixedly connected to a second support plate 602. The second support plate 602 is rotatably connected to a second driving gear 603. The second driving gear 603 is fixedly connected to a driving screw 604. The driving screw 604 is threadedly connected to a driving threaded plate 605. The driving threaded plate 605 is fixedly connected to the stepped support column 502. The top of the base 1 is rotatably connected to an impeller 607. The top of the impeller 607 is fixedly connected to a second driven gear 606. The impeller 607 and the second driven gear 606 are both in contact with the telescopic end sleeve of the electric telescopic rod 501. The second driven gear 606 is meshed with the second driving gear 603. When the impeller 607 rotates, it is used to stir the quenching liquid in the liquid cylinder 601, so that the quenching liquid absorbs the heat of the metal gear faster.

[0029] A quenching process for a gear-specific induction quenching machine tool comprises the following steps: S1: The staff places the metal gear above the clamping jaw 513 and presses the metal gear downward, so that the clamping jaw 513 moves and engages the metal gear through friction, and the metal gear presses the pressure rod 508 downward, so that the piston head 507 drives the hydraulic oil from the waterproof housing 506 through the second hose into the limiting cylinder 403, thereby pushing the measuring slide bar 404 to contact the tooth top surface of the metal gear to achieve the measurement of the outer diameter of the metal gear. The hydraulic oil in the limiting cylinder 403 enters the limiting ring 405 through the first hose, thereby driving the rotating ring 407 to rotate, so that the second fixed support frame 408 drives the step sliding frame 304 to move through the third sliding support frame 409, and then the step sliding frame 304 controls the rotating support shaft 307 through the magnetic blocking sleeve 305 to drive the coil 308 to move, thereby achieving the adjustment of the quenching radius of the metal gear; S2: The staff starts the electric telescopic rod 501, so that the step support column 502 drives the guide push rod 504 to push the L-shaped sliding frame 301 upward through the first support plate 503, and then drives the step slide column 303 to move upward through the threaded support plate 302, so that the step slide frame 304 constituting the annular structure drives the magnetic blocking sleeves 305 at the bottom of each to move upward and away from the coil 308 synchronously, and the step support column 502 moves upward through the waterproof shell 506 to drive the sealing rotating cylinder 512 to move synchronously, and then drives the metal gear to move to the inner center of the support shell 306 through the clamping claw 513. The staff closes the electric telescopic rod 501 and starts the motor 510, so that the output shaft of the motor 510 drives the clamping claw 513 to drive the metal gear to rotate, and then the staff starts the external high-frequency power supply, so that the coil 308 generates a high-frequency magnetic field, and the metal gear generates high-frequency eddy current and is quickly heated, thereby achieving the heating of the metal gear; S3: The staff stops energizing the coil 308 and restarts the electric telescopic rod 501, so that the step support column 502 drives the sealing rotating cylinder 512 to move downward through the waterproof housing 506, and then drives the metal gear to move through the clamping claw 513. The step support column 502 moves downward so that the driving threaded plate 605 drives the driving screw 604 to rotate, thereby driving the impeller 607 to stir the quenching liquid, so that the quenching liquid can fully exchange heat. When the electric telescopic rod 501 is fully retracted, it is closed, and the metal gear is completely immersed in the quenching liquid. The heat of the metal gear is absorbed by the quenching liquid, and the quenching of the metal gear is achieved; S4: The staff restarts the electric telescopic rod 501, so that the step support column 502 drives the sealing rotating cylinder 512 to move synchronously through the waterproof shell 506, so that the clamping claw 513 drives the metal gear to reset upward. The staff closes the electric telescopic rod 501 and pulls out the metal gear upward to complete the quenching process of the metal gear.

[0030] The staff first places the metal gear above the clamp 513 and presses the metal gear downward. The metal gear moves downward so that its inner wall presses the chamfer of the clamp 513 downward, thereby making the adjacent clamps 513 approach each other along the rectangular groove of the sealing rotating cylinder 512 and stretching the second spring. The second spring generates a pulling force and squeezes the inner wall of the metal gear through the clamp 513, thereby increasing the friction force of the clamp 513 on the metal gear until the bottom of the metal gear presses the pressure rod 508 downward and contacts the sealing rotating cylinder 512. It is worth noting that due to the large elastic coefficient of the second spring, the force of the first spring pushing the pressure rod 508 upward through the piston head 507 is not enough to overcome the friction force generated by the second spring on the metal gear through the clamp 513. At this time, the metal gear completes the positioning through the friction between the clamp 513 and the metal gear is installed.

[0031] In the process of the metal gear squeezing the pressure rod 508 downward, the pressure rod 508 moves downward, driving the piston head 507 to move downward synchronously, so that the piston head 507 compresses the first spring. At the same time, the piston head 507 moves downward to squeeze the hydraulic oil in the waterproof shell 506, and the hydraulic oil enters the limit cylinder 403 through the second hose. The hydraulic oil in the limit cylinder 403 enters the arc groove 4051 of the limit ring 405 through the first hose. Since damping is provided between the damping slider 406 and the arc groove 4051 of the limit ring 405, the hydraulic oil will first push the measuring slide bar 404 with smaller movement resistance. The increase of hydraulic oil in the limit cylinder 403 pushes the measuring slide bar 404, so that the measuring slide bar 404 contacts the tooth top surface of the metal gear along the limit cylinder 403 and stops moving. The smaller the outer diameter of the metal gear is, the longer the distance the measuring slide bar 404 needs to move, thereby realizing the measurement of the outer diameter of the metal gear, so that the heating adjustment mechanism 3 can adjust the quenching radius of the metal gear quenching.

[0032] When the measuring slide bar 404 contacts the tooth top surface of the metal gear and stops moving, the piston head 507 continues to move downward, so that the hydraulic oil in the waterproof housing 506 continues to enter the limit cylinder 403 through the second hose, and enters the limit ring 405 through the first hose in the limit cylinder 403, so that the hydraulic oil pushes the damping slider 406 to move along the arc groove 4051 of the limit ring 405, and the movement of the damping slider 406 drives the rotating ring 407 to rotate, so that the rotating ring 407 drives the third sliding support frame 409 to rotate through the second fixed support frame 408, so that the third sliding support frame 409 drives the spiral The step sliding frame 304 at the end moves. Since the anti-magnetic sleeve 305 is in the second spiral groove of the supporting shell 306, the step sliding frame 304 at the end of the spiral moves and drives the anti-magnetic sleeve 305 below it to slide along the second spiral groove of the supporting shell 306. The anti-magnetic sleeve 305 will drive the rotating support shaft 307 below it to move during the movement. The movement of the rotating support shaft 307 drives the coil 308 at the top and the hinge rod 311 at the bottom to move synchronously. Since all the hinge rods 311 are connected to the rotating support shaft 307, the step sliding frame 304 at the end of the spiral moves. When the rotating support shaft 307 is driven to move, all the hinged rods 311 will be driven to move, and then all the rotating support shafts 307 will move. When each rotating support shaft 307 moves, it will drive the coil 308 and the anti-magnetic sleeve 305 on its top to move along the second spiral groove of the support shell 306, so that the anti-magnetic sleeve 305 and the coil 308 are away from the axis of the metal gear. The anti-magnetic sleeve 305 at the spiral head end will drive the stepped sliding frame 304 above it to move synchronously, so that the stepped sliding frame 304 drives the sliding support plate 312 to move in the stepped grooves of other stepped sliding frames 304. The coil 308 slides inside and drives the stepped slide post 303 to slide in the first spiral groove of the threaded support disk 302. When the coil 308 moves away from the axis of the metal gear, the farther the coil 308 is from the axis of the metal gear, the larger the radius of the metal gear is, and the larger the quenching radius of the metal gear is. This allows the quenching radius of the metal gear to be adjusted, so that the device of the present invention can adapt to metal gears of different sizes, thereby improving the versatility and flexibility of the device of the present invention. The staff does not need to replace or reconfigure other high-frequency quenching devices for metal gears of different sizes, thereby improving production efficiency and reducing production costs.

[0033] After completing the installation of the metal gear, the staff starts the electric telescopic rod 501, so that the telescopic end of the electric telescopic rod 501 extends upward, thereby driving the step support column 502 to move upward. During the upward movement of the step support column 502, the guide push rod 504 is driven to move upward through the first support plate 503. The guide push rod 504 moves upward and is inserted into the spline groove of the L-shaped sliding frame 301 for clamping, and pushes the L-shaped sliding frame 301 to move upward. The movement of the L-shaped sliding frame 301 drives the threaded support plate 302 to move upward synchronously, so that the threaded support plate 302 drives the step slide column 303 to move upward through the first spiral groove. The upward movement of the step slide column 303 causes the step slide frame 304 at the spiral head end to move upward, thereby driving the step slide frame 304 The sliding support plate 312 moves upward synchronously, and when the sliding support plate 312 moves upward, it squeezes the step grooves of other step sliding frames 304 upward, and because the step sliding frames 304 are in contact with each other through the step grooves, and all the step sliding frames 304 evenly distributed in the spiral can be combined with the sliding support plate 312 to form a ring structure, the sliding support plate 312 is located inside the other step sliding frames 304 and moves synchronously. It is worth noting that when 304 form a ring structure, the magnetic resistance sleeves 305 and coils 308 at their bottoms will also form a ring structure. When the sliding support plate 312 moves upward, it will drive the step sliding frames 304 that form the ring structure to move synchronously, and then the step sliding frames 304 that form the ring structure will drive the magnetic resistance sleeves 305 and coils 308 that form the ring structure to move synchronously. The magnetic sleeve 305 moves upward synchronously, so that the anti-magnetic sleeve 305 constituting the annular structure is away from the coil 308 constituting the annular structure, so as to prevent the anti-magnetic sleeve 305 constituting the annular structure from interfering with the high-frequency quenching of the metal gear by the coil 308. At the same time, the stepped support column 502 moves upward through the waterproof shell 506 to drive the sealing rotating cylinder 512 to move synchronously, and then the sealing rotating cylinder 512 drives the metal gear to move upward through the clamping claw 513 until the clamping claw 513 is located at the inner center of the support shell 306. At this time, the staff closes the electric telescopic rod 501 and starts the motor 510, so that the output shaft of the motor 510 rotates and drives the first driving gear 509 to rotate synchronously. The first driving gear 509 rotates to make the first driven gear 51 meshed with it 1 rotates, and then the sealing rotating cylinder 512 drives the metal gear to rotate through the clamping claw 513, so that the distance between the tooth surface of the metal gear and the coil 308 changes periodically, and the metal gear can be evenly heated during quenching. Then the staff starts the external high-frequency power supply, so that the high-frequency power supply is passed into the coil 308 that forms the ring structure through the first wire. The coil 308 that forms the ring structure generates a high-frequency magnetic field under the action of the high-frequency power supply. The metal gear is affected by the high-frequency magnetic field, and high-frequency eddy currents are generated on the surface of the metal gear under the skin effect, so that the metal gear is quickly heated. At the same time, the magnetic-blocking sleeve 305 that does not form a ring structure will also be affected by the high-frequency magnetic field, thereby generating high-frequency eddy currents, which are conducted to the earth through the second wire.The magnetic blocking sleeve 305 shields the high-frequency magnetic field for the coil 308 inside each of them, preventing the high-frequency magnetic field from heating the coil 308 inside the magnetic blocking sleeve 305, protecting the coil 308 from interference from the high-frequency magnetic field, thereby increasing the service life of the coil 308 and improving the safety of the device.

[0034] After the metal gear is heated, it is necessary to cool and quench the metal gear. The staff stops the external high-frequency power supply to energize the coil 308 so that the coil 308 no longer heats the metal gear, and restarts the electric telescopic rod 501 to move the telescopic end of the electric telescopic rod 501 downward and drive the step support column 502 to move synchronously. The step support column 502 moves downward to make the waterproof housing 506 drive the sealing rotating cylinder 512 to move, so that the sealing rotating cylinder 512 drives the metal gear to move downward through the clamping claw 513. In the process of the step support column 502 moving downward, the step support column 502 drives the guide push rod 504 to move downward through the first support plate 503, so that L The L-shaped sliding frame 301 moves downward synchronously with the guide push rod 504 under the action of gravity, resets and detaches from the guide push rod 504. During the downward movement of the L-shaped sliding frame 301, the threaded support plate 302 is driven downward, so that the threaded support plate 302 drives the step slide 303 to move downward synchronously through the first spiral groove. The step slide 303 moves downward synchronously, so that the step sliding frame 304 and the sliding support plate 312 forming the annular structure move synchronously, and then the step sliding frame 304 drives the magnetic blocking sleeve 305 at the bottom thereof to move downward synchronously, so that the magnetic blocking sleeve 305 is reset, and the guide push rod 504 moves downward to squeeze the limiting bead 505 through the guide groove, so that the limiting bead 505 The rotating support frame 402 is driven to rotate clockwise along the guide groove of the guide push rod 504 on the first fixed support frame 401. The rotating support frame 402 rotates through the limit cylinder 403 to drive the measuring slide bar 404 to rotate synchronously. The rotation of the rotating support frame 402 can prevent the rotating support frame 402 from hindering the metal gear from moving downward, and can increase the distance between the metal gear and the second hose when the metal gear moves downward, thereby preventing the second hose from contacting the high-temperature metal gear. In addition, the step support column 502 will drive the driving threaded plate 605 to move downward synchronously during the downward movement, so that the driving threaded plate 605 drives the driving screw 604 to rotate, and the driving screw 604 rotates. The second driven gear 606 is driven to rotate by the second driving gear 603, thereby causing the impeller 607 to rotate and stir the quenching liquid until the metal gear is immersed in the quenching liquid and the telescopic end of the electric telescopic rod 501 is completely retracted, and then the electric telescopic rod 501 is stopped. At this time, the metal gear is completely immersed in the quenching liquid. The rotation of the metal gear makes the speed at which the quenching liquid contacts the metal gear faster, so that the heat of the metal gear can be more fully taken away to achieve the quenching effect. The quenching liquid is stirred by the impeller 607, so that the cold quenching liquid at the bottom of the liquid storage cylinder 601 and the hot quenching liquid after quenching at the top can fully exchange heat, thereby further accelerating the removal of heat from the metal gear and improving the efficiency of metal gear quenching.

[0035] After the quenching of the metal gear is completed, the staff needs to remove the metal gear and reset the device. The staff restarts the electric telescopic rod 501 to extend the telescopic end of the electric telescopic rod 501 upward, thereby driving the step support column 502 to move upward. During the upward movement of the step support column 502, the guide push rod 504 is driven to move upward through the first support plate 503. The guide push rod 504 moves upward so that its own guide groove drives the rotating support frame 402 to rotate and reset by squeezing the limit bead 505, and the step support column 502 moves upward through the waterproof shell 506 to drive the sealing rotating cylinder 512 to move synchronously, thereby making the sealing The sealing rotating cylinder 512 drives the metal gear to reset upward through the clamping claw 513. At this time, the staff closes the electric telescopic rod 501 and pulls out the metal gear upward, so that the metal gear is separated from the pressure rod 508, the sealing rotating cylinder 512 and the clamping claw 513, and the quenching process of the metal gear is completed. When the metal gear is separated from the pressure rod 508, the first spring is released to push the piston head 507 to move upward, so that the piston head 507 drives the pressure rod 508 to reset. The upward movement of the piston head 507 causes the waterproof housing 506 to extract hydraulic oil to the measuring slide rod 404 through the second hose. The hydraulic oil in the measuring slide rod 404 is reduced to reset the measuring slide rod 404. After the measuring slide bar 404 is reset, the measuring slide bar 404 will draw hydraulic oil from the arc groove 4051 of the limit ring 405 through the first hose, so that the damping slider 406 slides and resets, and the movement of the damping slider 406 drives the rotating ring 407 to rotate, so that the rotating ring 407 controls the step sliding frame 304 at the spiral end of the third sliding support frame 409 through the second fixed support frame 408 to move, so that the step sliding frame 304 at the spiral end drives the magnetic blocking sleeve 305 below it to slide along the second spiral groove of the support shell 306, and the magnetic blocking sleeve 305 will drive the rotating support shaft 307 below it during the movement. The movement of the rotating support shaft 307 drives the coil 308 at the top and the hinged rod 311 at the bottom to move synchronously. Since all the hinged rods 311 are connected to the rotating support shaft 307, the movement of the rotating support shaft 307 driven by the stepped sliding frame 304 at the spiral end will drive all the hinged rods 311 to move, and then all the rotating support shafts 307 will move. When each rotating support shaft 307 moves, it will drive the top magnetic-blocking sleeve 305 and the coil 308 to move along the second spiral groove of the supporting shell 306, so that the magnetic-blocking sleeve 305 and the coil 308 are reset, thereby completing the reset of the device.

[0036] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear-specific induction hardening machine tool, comprising a base, with an L-shaped support frame fixed to the top of the base, characterized in that: It also includes a heating adjustment mechanism, which includes an L-shaped sliding frame, the top of the L-shaped support frame is slidably connected to the L-shaped sliding frame, a threaded support plate is fixedly connected to the L-shaped sliding frame, a first spiral groove is provided on the threaded support plate, a step sliding column is slidably connected in the first spiral groove, a plurality of step sliding frames are spirally and evenly distributed on the bottom of the step sliding column, a plurality of step sliding frames are provided with a step groove on one side, and a plurality of adjacent step sliding frames are in contact with each other through the step grooves, wherein the step sliding frame at the spiral head end is fixedly connected to the bottom of the step sliding column, and a sliding support plate is fixedly connected to one side of the step sliding frame, and the sliding support plate is in sliding contact with the step groove of one of the step sliding frames that is spirally and evenly distributed among the plurality of step sliding frames. , a plurality of step sliding frames are fixedly connected to a magnetic-blocking sleeve at the bottom, a support shell is fixedly connected to one side of the L-shaped support frame, a second spiral groove is opened inside the support shell, a plurality of magnetic-blocking sleeves are in sliding contact with the second spiral groove, a plurality of magnetic-blocking sleeves are slidably connected to a rotating support shaft at the bottom, a plurality of rotating support shafts are fixedly connected to the top, a measuring and adjusting mechanism is arranged on the step sliding frame at the spiral end, and the measuring and adjusting mechanism is used to drive the coil to adjust the quenching radius of the metal gear when it is active, a plurality of articulated rods are evenly distributed in a spiral shape under the plurality of rotating support shafts, a plurality of articulated rods correspond to a plurality of rotating support shafts, adjacent articulated rods are staggered and hinged up and down, and a plurality of articulated rods located above are connected to the corresponding rotating support shafts.

2. A gear-specific induction hardening machine tool according to claim 1, characterized in that: The heating adjustment mechanism also includes a second sliding support frame, wherein the bottoms of the two hinged rods located below are rotatably connected to the second sliding support frame, the second sliding support frame is slidably connected to the first sliding support frame, and the first sliding support frame is slidably connected to the annular groove set in the support shell.

3. A gear-specific induction hardening machine tool according to claim 2, characterized in that: The measuring and adjusting mechanism comprises a first fixed support frame, the first fixed support frame is fixedly connected to the L-shaped support frame, the top of the first fixed support frame is rotatably connected to the rotating support frame, the top of the rotating support frame is fixedly connected to the limiting cylinder, and the measuring slide rod is slidably connected in the limiting cylinder.

4. The gear-specific induction hardening machine tool according to claim 3, characterized in that: The measuring and adjusting mechanism also includes a limit ring, which is fixedly connected to the outer wall of the supporting shell, an arc groove is opened on the inner wall of the limit ring, a first hose is fixedly connected between the arc groove and the limit cylinder, a rotating ring is sealingly rotatably connected to the inner wall of the limit ring, the rotating ring contacts the bottom of the threaded support disk, a damping slider is fixedly connected to the outer wall of the rotating ring, the damping slider is sealingly slidably connected to the arc groove of the limit ring, a second fixed support frame is fixedly connected to the rotating ring, a third sliding support frame is slidably connected in the second fixed support frame, and the third sliding support frame is fixed to the stepped sliding frame at the spiral end.

5. The gear-specific induction hardening machine tool according to claim 4, characterized in that: It also includes a driving and adjusting mechanism, which includes an electric telescopic rod, an electric telescopic rod fixedly installed in the base, a telescopic end of the electric telescopic rod fixedly connected to a step support column, an outer wall of the step support column is in contact with one side of the rotating support frame, a first support plate is fixedly connected to the outer wall of the step support column, a guide push rod is fixedly connected to the first support plate, the guide push rod is in through-sliding contact with the first fixed support frame, and the guide push rod is in through-movable contact with the rotating support frame, embedded fixed limiting beads are evenly distributed circumferentially on the inner wall of the rotating support frame, guide grooves are evenly distributed circumferentially on the outer wall of the guide push rod, the limiting beads are in sliding contact with the guide grooves, and a spline groove matching the guide push rod is provided at the bottom of the L-shaped sliding frame.

6. The gear-specific induction hardening machine tool according to claim 5, characterized in that: The driving and adjusting mechanism also includes a waterproof shell, which is fixedly connected to the top of the step support column, and a piston head is slidably connected to the inside of the waterproof shell. The waterproof shell is filled with hydraulic oil below the piston head. A first spring is connected between the waterproof shell and the piston head, a second hose is fixedly connected between the inside of the waterproof shell and the limit cylinder, and a pressure rod is rotatably connected to the top of the piston head.

7. The gear-specific induction hardening machine tool according to claim 6, characterized in that: The drive adjustment mechanism also includes a motor, which is installed inside the waterproof shell. The output shaft of the motor is fixedly connected to the first driving gear. A sealed rotating cylinder is rotatably connected to the top of the waterproof shell. The sealed rotating cylinder is slidably connected to the pressure rod, and the sealed rotating cylinder is movably connected to the piston head. A first driven gear is fixedly connected to the bottom of the sealed rotating cylinder, and the first driven gear is meshed with the first driving gear.

8. The gear-specific induction hardening machine tool according to claim 7, characterized in that: The driving and adjusting mechanism also includes a clamping claw. A rectangular groove is evenly distributed on the top of the sealing rotating cylinder. The clamping claw is slidably connected in the rectangular groove. The top of the clamping claw is chamfered. A second spring is connected between the rectangular groove and the clamping claw.

9. The gear-specific induction hardening machine tool according to claim 8, characterized in that: The gear quenching mechanism is also included, which includes a liquid cylinder. The liquid cylinder is fixedly connected to the top of the base, and the liquid cylinder is filled with quenching liquid. A second support plate is fixedly connected to the inner wall of the liquid cylinder. A second driving gear is rotatably connected to the second support plate. A driving screw is fixedly connected to the second driving gear. A driving threaded plate is threadedly connected to the driving screw. The driving threaded plate is fixed to the step support column. An impeller is rotatably connected to the top of the base, and a second driven gear is fixedly connected to the top of the impeller. Both the impeller and the second driven gear are in contact with the telescopic end sleeve of the electric telescopic rod, and the second driven gear is meshed with the second driving gear.

10. The quenching process of a gear-specific induction quenching machine tool according to claim 9, characterized in that: The following steps are involved: S1: The staff places the metal gear on the top of the clamp and presses the metal gear downward to make the clamp move and engage the metal gear through friction, and the metal gear presses the pressure rod downward, so that the piston head drives the hydraulic oil from the waterproof housing through the second hose into the limit cylinder, thereby pushing the measuring slide bar to contact the tooth top surface of the metal gear to achieve the measurement of the outer diameter of the metal gear. The hydraulic oil in the limit cylinder enters the limit ring through the first hose, thereby driving the rotating ring to rotate, so that the second fixed support frame drives the step sliding frame to move through the third sliding support frame, and then the step sliding frame controls the rotating support shaft through the magnetic blocking sleeve to drive the coil to move, thereby achieving the adjustment of the quenching radius of the metal gear; S2: The staff starts the electric telescopic rod, so that the step support column drives the guide push rod to push the L-shaped sliding frame upward through the first support plate, and then drives the step slide column to move upward through the threaded support plate, so that the step slide frames forming the ring structure drive the magnetic blocking sleeves at the bottom of each to move upward and away from the coil synchronously, and the step support column moves upward through the waterproof shell to drive the sealing rotating cylinder to move synchronously, and then drives the metal gear to move to the inner center of the support shell through the clamping claw. The staff closes the electric telescopic rod and starts the motor, so that the output shaft of the motor drives the clamping claw to drive the metal gear to rotate, and then the staff starts the external high-frequency power supply, so that the coil generates a high-frequency magnetic field, and the metal gear generates a high-frequency eddy current and is quickly heated, thereby achieving the heating of the metal gear; S3: The staff stops energizing the coil and restarts the electric telescopic rod, so that the step support column drives the sealed rotating cylinder to move downward through the waterproof housing, and then drives the metal gear to move through the clamping claw. The step support column moves downward so that the driving threaded plate drives the driving screw to rotate, thereby driving the impeller to stir the quenching liquid, so that the quenching liquid can fully exchange heat. When the electric telescopic rod is fully retracted, it is closed, and the metal gear is completely immersed in the quenching liquid. The heat of the metal gear is absorbed by the quenching liquid, and the quenching of the metal gear is achieved; S4: The staff restarts the electric telescopic rod, so that the step support column drives the sealed rotating cylinder to move synchronously through the waterproof shell, so that the clamp drives the metal gear to reset upward. The staff closes the electric telescopic rod and pulls out the metal gear upward to complete the quenching process of the metal gear.

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