CN214361538U

CN214361538U - Continuous quenching machine tool for shaft parts

Info

Publication number: CN214361538U
Application number: CN202120119691.2U
Authority: CN
Inventors: 周祥成; 万美华; 冯广
Original assignee: Shiyan Hengjin Induction Technology Co ltd
Current assignee: Shiyan Hengjin Induction Technology Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-10-08
Anticipated expiration: 2031-01-16

Abstract

The utility model discloses a continuous quenching machine tool for shaft parts, which relates to the technical field of shaft part processing, and comprises a feeding conveying mechanism, a load heating mechanism, a discharging conveying mechanism, a workpiece rotating device and two feeding driving devices; the workpiece rotating device is used for driving the workpiece to rotate; the load heating mechanism is used for quenching and heating the workpiece at the workpiece rotating device; the two feeding driving devices are respectively arranged at the feeding end and the discharging end of the workpiece rotating device and are used for realizing the automatic linear motion of the workpiece; the feeding conveying mechanism is used for conveying a workpiece to be processed into a feeding driving device at the feeding end; and the blanking conveying mechanism is used for conveying the machined workpiece out of the feeding driving device at the discharging end.

Description

Continuous quenching machine tool for shaft parts

Technical Field

The utility model relates to the technical field of shaft part processing, in particular to a continuous quenching machine tool for shaft parts

Background

The purpose of quenching is to use super-cooled austenite to perform martensite or bainite transformation to obtain martensite or bainite structures, and then to match tempering at different temperatures to greatly improve the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of the steel, thereby meeting different use requirements of various mechanical parts and tools. The special physical and chemical properties of special steel such as ferromagnetism, corrosion resistance and the like can also be met through quenching.

The shaft parts are widely applied. The invention can completely avoid workpiece movement and ensure the stability of quenching quality, and the traditional machine tool avoids workpiece movement, adds pinch rollers at two sides of the inductor to cause unsmooth workpiece clamping and rotation or workpiece feeding speed change to cause unqualified quenching, and simultaneously has the defects of excessive roller consumption, inapplicability to mass production and the like.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the prior art, the utility model aims to provide a continuous quenching machine tool for shaft parts, which can stop the workpiece shifting caused by the electromagnetic force of an inductor to cause unqualified quenching, adapt to large-batch automatic high-efficiency production and ensure the consistency of quenching quality. The quenching efficiency is 5 times of that of a vertical machine tool.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a continuous quenching machine tool for shaft parts comprises a feeding conveying mechanism, a load heating mechanism, a discharging conveying mechanism, a workpiece rotating device and two feeding driving devices; the workpiece rotating device is used for driving the workpiece to rotate; the load heating mechanism is used for quenching and heating the workpiece at the workpiece rotating device; the two feeding driving devices are respectively arranged at the feeding end and the discharging end of the workpiece rotating device and are used for realizing the automatic linear motion of the workpiece; the feeding conveying mechanism is used for conveying a workpiece to be processed into a feeding driving device at a feeding end; and the blanking conveying mechanism is used for conveying the machined workpiece out of the feeding driving device at the discharging end.

The further improvement lies in that: the workpiece rotating device comprises a rotating motor and two rotating shafts arranged in parallel, wherein both the rotating shafts are provided with rotating roller groups, and a quenching channel for the workpiece to pass through is formed between the two rotating roller groups; the rotating motor is connected with the two rotating shafts through a gear set and used for driving the two rotating shafts to rotate.

The further improvement lies in that: the load heating mechanism comprises a support column, a sliding plate, a mounting frame and a connecting arm; an X-direction guide rail is arranged at the top of the supporting column; the bottom surface of the sliding plate is arranged on the X-direction guide rail in a sliding manner, and the top surface of the sliding plate is provided with the Y-direction guide rail; the bottom of the mounting rack is slidably arranged on the Y-direction guide rail, the top of the mounting rack is provided with a capacitor, and a transformer is arranged in the mounting rack; a Z-direction guide rail is arranged on one side of the transformer, which faces the workpiece rotating device; one end of the connecting arm is slidably arranged on the Z-direction guide rail, and the other end of the connecting arm is provided with an inductor.

The further improvement lies in that: the feeding driving device comprises an upper roller set, a lower roller set, a first height adjusting mechanism, a second height adjusting mechanism and two driving mechanisms; the upper roller group and the lower roller group are oppositely arranged, and a channel for shaft parts to pass through is formed between the upper roller group and the lower roller group; the first height adjusting mechanism is connected with the upper roller group and is used for adjusting the height of the upper roller group; the second height adjusting mechanism is connected with the lower roller group and is used for adjusting the height of the lower roller group; the two driving mechanisms are respectively connected with the upper roller group and the lower roller group and are used for driving the upper roller group and the lower roller group to rotate.

The further improvement lies in that: the automatic feeding mechanism comprises a storage bin, an adjusting plate and a turnover baffle plate; a step part is arranged on one side in the stock bin, and a first-stage ejector plate is arranged on the inner bottom wall of the stock bin close to the step part and used for ejecting the workpiece to the step part; the step part is provided with a second-stage ejector plate, and the second-stage ejector plate is used for ejecting the workpiece to the feeding conveying mechanism; a first-stage material ejecting cylinder for driving a first-stage material ejecting plate to ascend and descend and a second-stage material ejecting cylinder for driving a second-stage material ejecting plate to ascend and descend are arranged at the bottom of the storage bin; the adjusting plate is arranged in the storage bin and used for adjusting the internal space of the storage bin according to the length of the workpiece; the outer side wall of the storage bin is provided with a manual adjusting screw rod, and the manual adjusting screw rod penetrates through the storage bin to be connected with the adjusting plate; the overturning material baffle is arranged at the step part and used for blocking a workpiece from entering the feeding conveying mechanism; a connecting shaft is arranged on one side of the overturning striker plate, and two ends of the connecting shaft are respectively connected with the storage bin through connecting supports; the outer side wall of the storage bin is provided with a turnover cylinder, and a piston rod of the turnover cylinder is connected with the connecting shaft through a first connecting plate and used for driving the turnover striker plate to overturn around the connecting shaft.

The further improvement lies in that: the feeding mechanism is used for feeding the workpieces with unqualified processes to the feeding mechanism for reprocessing; one end of the return conveying mechanism, which is close to the feeding conveying mechanism, is provided with a jacking seat and a jacking cylinder; the jacking seat is used for jacking the workpiece to the feeding conveying mechanism; the jacking cylinder is connected with the jacking seat and used for driving the jacking seat to move.

The further improvement lies in that: the feeding conveying mechanism, the discharging conveying mechanism and the returning conveying mechanism are all conveying chains.

The further improvement lies in that: the blanking conveying mechanism is provided with a first blanking plate and a second blanking plate, the first blanking plate is used for conveying the workpieces which are unqualified in the process to the return conveying mechanism, and the second blanking plate is used for conveying the process wastes to the scrapping area; and the first blanking plate and the second blanking plate are provided with pushing plates, and one side of each pushing plate is connected with a pushing cylinder through a pushing rotating shaft.

The further improvement lies in that: the material blocking device comprises a first material blocking pressing plate, a material blocking cylinder, a second material blocking pressing plate and a fixing frame; the material blocking cylinder is connected with the first material blocking pressure plate through a second connecting plate and used for driving the first material blocking pressure plate to move; and a connecting frame is arranged on the second material blocking pressing plate and is connected with the fixing frame through an adjusting screw rod.

The further improvement lies in that: and a protective net is arranged outside the load heating mechanism.

The beneficial effects of the utility model reside in that:

the utility model discloses can stop the work piece drunkenness that inductor electromagnetic force arouses and cause the quenching unqualified, adapt to automatic high-efficient production in batches, guarantee the uniformity of quenching quality. The quenching efficiency is 5 times of that of a vertical machine tool.

Drawings

FIG. 1 is a perspective view of a continuous quenching machine tool for shaft parts in an embodiment of the present invention;

FIG. 2 is a top view of a continuous quenching machine for shaft parts according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a workpiece rotating apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a load heating mechanism according to an embodiment of the present invention;

fig. 5 is a perspective view of a feed drive in an embodiment of the present invention;

fig. 6 is a front view of a feed drive in an embodiment of the invention;

FIG. 7 is a side view of a feed drive in an embodiment of the invention;

fig. 8 is an enlarged schematic view of a lower roller set and an upper roller set in an embodiment of the present invention;

fig. 9 is an enlarged schematic view of a transmission mechanism portion according to an embodiment of the present invention;

fig. 10 is a schematic structural view of an automatic feeding mechanism in an embodiment of the present invention;

fig. 11 is a schematic structural view of the blanking conveying mechanism and the return conveying mechanism in the embodiment of the present invention;

fig. 12 is a schematic structural view of a blanking conveying mechanism in an embodiment of the present invention;

fig. 13 is a schematic structural view of the jacking seat and the jacking cylinder in the embodiment of the present invention;

fig. 14 is a schematic structural view of a material blocking device in an embodiment of the present invention.

Reference numerals:

1-a feeding conveying mechanism;

2-a workpiece rotating device; 200-a rotating shaft; 201-rotating roller group; 202-gear set; 203-a rotating electrical machine;

3-a load heating mechanism; 300-support column; a 301-X directional guide rail; 302-a skateboard; 303-Y direction guide rail; 304-a mounting frame; 305-a transformer; 306-capacitance; 307-Z guide rails; 308-a linker arm; 309-a sensor;

4-a feed drive; 410-a bottom plate; 411-column; 420-lower moving plate; 430-an upper moving plate; 431-a connecting part; 432-a mobile guide; 433-a spring; 440-a top plate; 441-a first adjusting lever; 442-a second adjustment lever; 450-lower roller group; 451-lower roller; 452-lower rollers; 453-second V-groove; 460-upper roller group; 461-upper roller; 462-an upper roller; 463-a first V-shaped groove; 470-a drive mechanism; 471-a servo motor; 472-speed reducer; 480-a transmission mechanism; 481 — Transmission gears; 482-transition gear; 483-Gear support;

5-a blanking conveying mechanism; 500-a first blanking plate; 501-a second blanking plate; 502-a stripper plate; 503-pushing rotating shaft; 504-a material pushing cylinder;

6, an automatic feeding mechanism; 600-a storage bin; 601-first-level ejector plate; 602-a step portion; 603-a second-stage ejector plate; 604-turning over the striker plate; 605-a connecting shaft; 606-a connecting bracket; 607-a flipping cylinder; 608-a first connection board; 609-adjusting plate; 610-manually adjusting the lead screw; 611-first-stage material ejection cylinder; 612-a secondary liftout cylinder;

7-a return conveying mechanism; 700-jacking seat; 701-jacking air cylinders;

8-a material blocking device; 800-a first material blocking pressure plate; 801-a second connecting plate; 802-material blocking cylinder; 803-second material blocking pressing plate; 804-a connecting frame; 805-adjusting the screw rod; 806-a mount;

9-protective screening.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 1 and 2, an embodiment of the present invention provides a continuous quenching machine tool for shaft parts, which includes a feeding conveying mechanism 1, a load heating mechanism 3, a discharging conveying mechanism 5, a workpiece rotating device 2 and two feeding driving devices 4;

the workpiece rotating device 2 is used for driving the workpiece to rotate;

the load heating mechanism 3 is used for quenching and heating the workpiece at the workpiece rotating device 2;

the two feeding driving devices 4 are respectively arranged at the feeding end and the discharging end of the workpiece rotating device 2 and are used for realizing automatic linear motion of the workpiece, and the speed of the linear motion is adjustable; the speeds of the front and rear roller groups can be respectively set to ensure that all quenching workpieces are connected end to end. The number of the roller groups can be increased according to the use working condition. The distance between the feeding rollers at two sides of the inductor can adopt different distances according to the length requirement of the workpiece.

The feeding conveying mechanism 1 is used for feeding a workpiece to be processed into a feeding driving device 4 at a feeding end;

the blanking conveying mechanism 5 is used for sending out the processed workpiece from the feeding driving device 4 at the discharging end.

Referring to fig. 3, the workpiece rotating device 2 includes a rotating motor 203 and two rotating shafts 200 arranged in parallel, both rotating shafts 200 are provided with rotating roller groups 201, and a quenching passage for the workpiece to pass through is formed between the two rotating roller groups 201; the rotating motor 203 is connected to the two rotating shafts 200 through the gear set 202, and is used for driving the two rotating shafts 200 to rotate. The rotary roller is driven by the motor to rotate so as to drive the workpiece to rotate, and the rotating speed is adjustable.

Referring to fig. 4, the load heating mechanism 3 includes a support post 300, a skid plate 302, a mounting bracket 304, and a connecting arm 308; an X-direction guide rail 301 is arranged at the top of the support column 300; the bottom surface of the sliding plate 302 is arranged on the X-direction guide rail 301 in a sliding manner, and the top surface of the sliding plate 302 is provided with a Y-direction guide rail 303; the bottom of the mounting frame 304 is slidably arranged on the Y-direction guide rail 303, the top of the mounting frame 304 is provided with a capacitor 306, and a transformer 305 is arranged in the mounting frame 304; a Z-guide rail 307 is provided on a side of the transformer 305 facing the workpiece rotating apparatus 2; one end of the connecting arm 308 is slidably disposed on the Z-guide rail 307, and the other end of the connecting arm 308 is disposed with an inductor 309. Specifically, a protective net 9 is arranged outside the load heating mechanism 3. The transformer can be adjusted front and back, left and right, and mainly aims to adjust the inductor to the optimal working position when the workpiece is heated.

Referring to fig. 5 to 7, the shaft part feeding driving device 4 includes an upper roller set 460, a lower roller set 650, a first height adjusting mechanism, a second height adjusting mechanism, and two driving mechanisms 670;

referring to fig. 8, the upper roller set 460 and the lower roller set 450 are oppositely arranged, and a channel for shaft parts to pass through is formed between the upper roller set 460 and the lower roller set 450;

the first height adjusting mechanism is connected with the upper roller group 460 and is used for adjusting the height of the upper roller group 460; specifically, the first height adjusting mechanism comprises a first adjusting rod 441, a top plate 440, an upper moving plate 430 and a bottom plate 410 which are sequentially arranged from top to bottom, wherein a plurality of upright columns 411 are arranged on the bottom plate 410, and the upper ends of the upright columns 411 penetrate through the upper moving plate 430 and then are connected with the top plate 440; the lower end of the first adjustment rod 441 passes through the top plate 440 and is connected to the upper moving plate 430, so as to drive the upper moving plate 430 to ascend and descend along the column 411. The upper moving plate 430 includes a connecting portion 431 and a moving guide portion 432; the moving guide part 432 is sleeved on the upright column 411, the top of the moving guide part 432 is connected with the first adjusting rod 441, and the bottom of the moving guide part 432 is connected with the top of the connecting part 431 through a spring 433; the upper roller set 460 is installed at the bottom of the connection portion 431.

The second height adjusting mechanism is connected with the lower roller set 450 and is used for adjusting the height of the lower roller set 450; specifically, the second height adjusting mechanism includes a plurality of second adjusting rods 442 and a lower moving plate 420 located between the upper moving plate 430 and the bottom plate 410, the lower moving plate 420 is sleeved on the column 411, and the lower ends of the second adjusting rods 442 penetrate through the top plate 440 and then are connected with the lower moving plate 420 for driving the lower moving plate 420 to ascend and descend along the column 411. In this embodiment, the first and second adjusting levers 441 and 442 each include a lead screw and a lock nut. The first adjusting rod 441 and the second adjusting rod 442 achieve the vertical adjusting effect, the diameters of workpieces are different, and the gap between the vertical driving wheels is adjusted in height, so that the universality of the automatic production line is improved. The whole device is small and exquisite, and the commonality is high. The device is suitable for continuous feeding driving of different shaft parts and has good consistency.

Two driving mechanisms 470 are respectively connected to the upper roller set 460 and the lower roller set 450 for driving them to rotate. Specifically, the driving mechanism 470 includes a servo motor 471 and a speed reducer 472 connected to each other. Under the working state, the two groups of driving parts rotate positively and negatively, and the shaft parts can be arranged up and down in the V-shaped groove by utilizing friction and self gravity factors to realize automatic and continuous feeding of workpieces, and the feeding speed is adjustable.

Specifically, the upper roller group 460 includes a plurality of upper rollers 461 arranged in a row, the upper rollers 461 are sleeved with upper rollers 462, and the rolling surface of the upper rollers 462 is provided with a first V-shaped groove 463 adapted to the shaft part; the lower roller set 450 includes a plurality of lower rollers 451 arranged in an array, the lower rollers 451 are sleeved with lower rollers 452, and a rolling surface of the lower rollers 452 is provided with a second V-shaped groove 453 adapted to the shaft parts. The upper roller 462 and the lower roller 452 are both made of 3Cr13 material and the surfaces of the upper roller 462 and the lower roller 452 are subjected to quenching hardening treatment.

Referring to fig. 9, the feeding driving device for shaft parts further includes a transmission mechanism 480, the transmission mechanism 480 includes a plurality of transmission gears 481, and each transmission gear 481 is disposed at one end of the corresponding upper roller 461 and lower roller 451; the other end of one of the upper rollers 461 is connected to a corresponding driving mechanism 470; the other end of one of the lower rollers 451 is connected to the corresponding other driving mechanism 470. Specifically, the transmission mechanism 480 further includes a plurality of transition gears 482 mounted on the gear support 483, and each transition gear 482 is disposed between two adjacent upper rollers 461 and between two adjacent lower rollers 451, and is engaged with the corresponding two transmission gears 481 to transmit power.

Referring to fig. 10, the continuous quenching machine tool for shaft parts further comprises an automatic feeding mechanism 6, wherein the automatic feeding mechanism 6 comprises a storage bin 600, an adjusting plate 609 and a turning striker plate 604; a step part 602 is arranged on one side in the stock bin 600, a first-stage ejector plate 601 is arranged on the bottom wall of the stock bin 600 close to the step part 602, and the first-stage ejector plate 601 is used for ejecting a workpiece to the step part 602; the step part 602 is provided with a secondary ejector plate 603, and the secondary ejector plate 603 is used for ejecting the workpiece to the feeding conveying mechanism 1; a first-stage material ejecting cylinder 611 for driving the first-stage material ejecting plate 601 to ascend and descend and a second-stage material ejecting cylinder 612 for driving the second-stage material ejecting plate 603 to ascend and descend are arranged at the bottom of the storage bin 600; the adjusting plate 609 is arranged in the stock bin 600 and is used for adjusting the internal space of the stock bin 600 according to the length of a workpiece; the outer side wall of the stock bin 600 is provided with a manual adjusting lead screw 610, and the manual adjusting lead screw 610 penetrates through the stock bin 600 to be connected with an adjusting plate 609; the overturning material baffle 604 is arranged on the step part 602 and used for blocking the workpiece from entering the feeding conveying mechanism 1; a connecting shaft 605 is arranged on one side of the overturning striker plate 604, and two ends of the connecting shaft 605 are respectively connected with the stock bin 600 through connecting brackets 606; the outer side wall of the stock bin 600 is provided with a turnover cylinder 607, and a piston rod of the turnover cylinder 607 is connected with the connecting shaft 605 through a first connecting plate 608 and is used for driving the turnover striker plate 604 to overturn around the connecting shaft 605.

Referring to fig. 11 and 13, the continuous quenching machine tool for shaft parts further comprises a return conveying mechanism 7, wherein the return conveying mechanism 7 is used for conveying the work pieces which are unqualified in process from the blanking conveying mechanism 5 to the blanking conveying mechanism 1 for re-processing; one end of the return conveying mechanism 7 close to the feeding conveying mechanism 1 is provided with a jacking seat 700 and a jacking cylinder 701; the jacking seat 700 is used for jacking the workpiece to the feeding conveying mechanism 1; the jacking cylinder 701 is connected with the jacking seat 700 and used for driving the jacking seat 700 to move. Specifically, the feeding conveying mechanism 1, the blanking conveying mechanism 5 and the return conveying mechanism 7 are all conveying chains.

Referring to fig. 11 and 12, the blanking conveying mechanism 5 is provided with a first blanking plate 500 and a second blanking plate 501, the first blanking plate 500 is used for conveying the work pieces with unqualified processes to the return conveying mechanism 7, and the second blanking plate 501 is used for conveying the process waste pieces to the scrapping area; the first blanking plate 500 and the second blanking plate 501 are provided with a material pushing plate 502, and one side of the material pushing plate 502 is connected with a material pushing cylinder 504 through a material pushing rotating shaft 503. Workpieces are conveyed to a blanking conveying chain by a feeding conveying chain after passing through a quenching area, qualified products of a quenching process are conveyed to the next process by the blanking conveying chain, unqualified products of the process are pushed to a return conveying chain by a material pushing cylinder, then conveyed to the position of a feeding cylinder by the return conveying chain, and then pushed to the conveying chain by the position of the feeding cylinder. The above process flow is completed again. Until the product is qualified. The product process waste reporting piece is used for pushing the product to a waste reporting area by a material pushing cylinder.

Referring to fig. 14, the continuous quenching machine tool for shaft parts further includes a material stopping device 8, and the material stopping device 8 includes a first material stopping pressing plate 800, a material stopping cylinder 802, a second material stopping pressing plate 803 and a fixing frame 806; the material blocking cylinder 802 is connected with the first material blocking pressing plate 800 through a second connecting plate 801 and is used for driving the first material blocking pressing plate 800 to move; the second material blocking pressing plate 803 is provided with a connecting frame 804, and the connecting frame 804 is connected with a fixing frame 806 through an adjusting screw 805. When the material blocking device works, the material blocking pressure plate descends to be pressed on the surface of a workpiece, so that the workpiece is prevented from arching upwards.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. The utility model provides an axle type part quenches lathe in succession, includes material loading conveying mechanism (1), load heating mechanism (3) and unloading conveying mechanism (5), its characterized in that: the device also comprises a workpiece rotating device (2) and two feeding driving devices (4);

the workpiece rotating device (2) is used for driving a workpiece to rotate;

the load heating mechanism (3) is used for quenching and heating the workpiece at the workpiece rotating device (2);

the two feeding driving devices (4) are respectively arranged at the feeding end and the discharging end of the workpiece rotating device (2) and are used for realizing the automatic linear motion of the workpiece;

the feeding conveying mechanism (1) is used for feeding a workpiece to be processed into a feeding driving device (4) at a feeding end;

and the blanking conveying mechanism (5) is used for sending out the processed workpiece from the feeding driving device (4) at the discharging end.

2. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the workpiece rotating device (2) comprises a rotating motor (203) and two rotating shafts (200) arranged in parallel, wherein the two rotating shafts (200) are both provided with rotating roller groups (201), and a quenching channel for the workpiece to pass through is formed between the two rotating roller groups (201); the rotating motor (203) is connected with the two rotating shafts (200) through a gear set (202) and is used for driving the two rotating shafts (200) to rotate.

3. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the load heating mechanism (3) comprises a supporting column (300), a sliding plate (302), a mounting frame (304) and a connecting arm (308); the top of the supporting column (300) is provided with an X-direction guide rail (301); the bottom surface of the sliding plate (302) is arranged on the X-direction guide rail (301) in a sliding mode, and the top surface of the sliding plate (302) is provided with the Y-direction guide rail (303); the bottom of the mounting rack (304) is slidably arranged on the Y-direction guide rail (303), the top of the mounting rack (304) is provided with a capacitor (306), and a transformer (305) is arranged in the mounting rack (304); a Z-direction guide rail (307) is arranged on one side, facing the workpiece rotating device (2), of the transformer (305); one end of the connecting arm (308) is arranged on the Z-direction guide rail (307) in a sliding mode, and the other end of the connecting arm (308) is provided with an inductor (309).

4. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the feeding driving device (4) comprises an upper roller group (460), a lower roller group (450), a first height adjusting mechanism, a second height adjusting mechanism and two driving mechanisms (470); the upper roller set (460) and the lower roller set (450) are arranged oppositely, and a channel for shaft parts to pass through is formed between the upper roller set (460) and the lower roller set (450); the first height adjusting mechanism is connected with the upper roller group (460) and is used for adjusting the height of the upper roller group (460); the second height adjusting mechanism is connected with the lower roller group (450) and is used for adjusting the height of the lower roller group (450); the two driving mechanisms (470) are respectively connected with the upper roller group (460) and the lower roller group (450) and are used for driving the upper roller group and the lower roller group to rotate.

5. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the automatic feeding mechanism (6) comprises a storage bin (600), an adjusting plate (609) and a turning material baffle plate (604); a step part (602) is arranged on one side in the stock bin (600), a first-stage ejector plate (601) is arranged on the bottom wall of the stock bin (600) close to the step part (602), and the first-stage ejector plate (601) is used for ejecting a workpiece to the step part (602); the step part (602) is provided with a secondary ejector plate (603), and the secondary ejector plate (603) is used for ejecting the workpiece to the feeding conveying mechanism (1); a primary material ejecting cylinder (611) for driving the primary material ejecting plate (601) to ascend and descend and a secondary material ejecting cylinder (612) for driving the secondary material ejecting plate (603) to ascend and descend are arranged at the bottom of the stock bin (600); the adjusting plate (609) is arranged in the storage bin (600) and is used for adjusting the internal space of the storage bin (600) according to the length of a workpiece; the outer side wall of the storage bin (600) is provided with a manual adjusting lead screw (610), and the manual adjusting lead screw (610) penetrates through the storage bin (600) and is connected with an adjusting plate (609); the overturning material baffle (604) is arranged on the step part (602) and is used for blocking a workpiece from entering the feeding conveying mechanism (1); a connecting shaft (605) is arranged on one side of the overturning material baffle (604), and two ends of the connecting shaft (605) are respectively connected with the stock bin (600) through connecting brackets (606); the outer side wall of the storage bin (600) is provided with a turnover cylinder (607), a piston rod of the turnover cylinder (607) is connected with the connecting shaft (605) through a first connecting plate (608) and is used for driving the turnover striker plate (604) to overturn around the connecting shaft (605).

6. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the automatic feeding and discharging device is characterized by further comprising a returning and conveying mechanism (7), wherein the returning and conveying mechanism (7) is used for returning and conveying the work pieces which are unqualified in process from the discharging and conveying mechanism (5) to the discharging and conveying mechanism (1) for reprocessing; one end of the return conveying mechanism (7) close to the feeding conveying mechanism (1) is provided with a jacking seat (700) and a jacking cylinder (701); the jacking seat (700) is used for jacking the workpiece to the feeding conveying mechanism (1); the jacking cylinder (701) is connected with the jacking seat (700) and used for driving the jacking seat (700) to move.

7. The continuous quenching machine tool for shaft parts according to claim 6, characterized in that: the feeding conveying mechanism (1), the blanking conveying mechanism (5) and the return conveying mechanism (7) are all conveying chains.

8. The continuous quenching machine tool for shaft parts according to claim 6, characterized in that: the blanking conveying mechanism (5) is provided with a first blanking plate (500) and a second blanking plate (501), the first blanking plate (500) is used for conveying the workpieces which are unqualified in the process to the return conveying mechanism (7), and the second blanking plate (501) is used for conveying the process scrapped parts to the scrapping area; and pushing plates (502) are arranged beside the first blanking plate (500) and the second blanking plate (501), and one side of each pushing plate (502) is connected with a pushing cylinder (504) through a pushing rotating shaft (503).

9. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: the material blocking device (8) comprises a first material blocking pressing plate (800), a material blocking cylinder (802), a second material blocking pressing plate (803) and a fixing frame (806); the material blocking cylinder (802) is connected with the first material blocking pressure plate (800) through a second connecting plate (801) and is used for driving the first material blocking pressure plate (800) to move; the second material blocking pressing plate (803) is provided with a connecting frame (804), and the connecting frame (804) is connected with the fixing frame (806) through an adjusting screw rod (805).

10. The continuous quenching machine tool for shaft parts according to claim 1, characterized in that: and a protective net (9) is arranged on the outer side of the load heating mechanism (3).