CN112795737B

CN112795737B - Quenching system for conical surface of valve

Info

Publication number: CN112795737B
Application number: CN202011561605.XA
Authority: CN
Inventors: 倪道顺; 王金鹏; 周国锋
Original assignee: Wuhan Dongxin Valve Manufacturing Co ltd
Current assignee: Wuhan Dongxin Valve Manufacturing Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-05-27
Anticipated expiration: 2040-12-25
Also published as: CN112795737A

Abstract

The application relates to the field of valve processing equipment, especially, relate to valve conical surface quenching system, it is including being used for the centre gripping or unclamping the fixture of valve and being used for carrying out the quenching mechanism that heats to the valve, quenching mechanism includes high frequency heating coil, high frequency heating coil's the central axis with the axis of activity grip roller is parallel, and valve rod portion passes high frequency heating coil quilt the fixture centre gripping, fixture still is used for driving the valve and rotates. The quenching treatment device has the advantages that quenching treatment is carried out on the valve conical surface, so that the structural strength of the valve conical surface is improved.

Description

Valve conical surface quenching system

Technical Field

The application relates to the field of valve processing equipment, in particular to a valve conical surface quenching system.

Background

The valve is used for inputting air into the engine and discharging combusted waste gas, and is divided into an inlet valve and an exhaust valve from the structure of the engine, wherein the inlet valve is used for sucking air into the engine and mixing and combusting the air and fuel; the exhaust valve is used for discharging combusted waste gas and dissipating heat.

The valve is composed of a valve head part A and a rod part B, and in order to improve the sealing performance of the valve, one side of the valve head part close to the rod part is generally a conical surface B1 (refer to fig. 4), when the valve works in an engine, the conical surface of the valve not only needs to bear higher temperature, but also needs to bear the pressure of gas, the acting force of a valve spring and the inertia force of a transmission assembly, so that the conical surface of the valve needs to have higher strength, rigidity, heat resistance and wear resistance, and therefore the conical surface of the valve needs to be quenched; due to the special structure of the valve conical surface, the quenching processing of the valve conical surface is inconvenient to carry out by using the common quenching equipment, so that the equipment for quenching processing of the valve conical surface is needed urgently.

Disclosure of Invention

In order to carry out quenching treatment on the valve conical surface, the application provides a valve conical surface quenching system.

The quenching system for the conical surface of the valve adopts the following technical scheme:

the valve conical surface quenching system comprises a clamping mechanism for clamping or loosening a valve and a quenching mechanism for heating the valve, wherein the quenching mechanism comprises a high-frequency heating coil, the central axis of the high-frequency heating coil is parallel to the axis of the movable clamping roller, the valve rod part penetrates through the high-frequency heating coil and is clamped by the clamping mechanism, and the clamping mechanism is also used for driving the valve to rotate.

By adopting the technical scheme, when the quenching treatment of the conical surface of the valve is required, the clamping mechanism is used for clamping the valve, and the quenching mechanism is used for heating and quenching the conical surface of the valve; during operation, the valve rod part penetrates through the high-frequency heating coil and then is clamped by the clamping mechanism, the valve is driven to rotate, and by utilizing the principle of high-frequency heating, the conical surface of the valve is positioned in the high-frequency heating coil to be heated in the rotating process, so that the heating and quenching of the conical surface of the valve are realized.

Preferably, fixture is including all rotating the movable pinch rolls and two fixed pinch rolls that set up, activity pinch roll and two fixed pinch rolls are used for enclosing and close and carry out the centre gripping to the valve in valve rod portion week side, the slip of activity pinch roll sets up, fixture is still including driving two fixed pinch roll syntropy pivoted first drive assembly, and the drive the second drive assembly that the valve was supported tightly or unclamped to the movable pinch roll.

Through adopting above-mentioned technical scheme, valve rod portion makes it be in between activity grip roller and two fixed grip rollers after passing high frequency heating coil to make the valve conical surface encircle by high frequency heating coil, rethread second drive assembly drive activity grip roller supports valve rod portion tightly, and valve rod portion is enclosed by activity grip roller and two fixed grip rollers and is closed the centre gripping this moment, and rethread first drive assembly drives two fixed grip rollers and rotates, drives the valve and rotates, realizes centre gripping valve and drive valve pivoted function.

Preferably, the clamping mechanism is located above the quenching mechanism, and the axis of the movable clamping roller is vertically arranged.

By adopting the technical scheme, the clamping mechanism and the quenching mechanism are distributed up and down, the valve penetrates through the high-frequency heating coil from bottom to top during processing and is clamped by the clamping mechanism, after the conical surface of the valve is heated and quenched, the movable clamping roller loosens the valve, and the valve falls under the action of gravity to realize blanking, so that the working efficiency of quenching treatment of the conical surface of the valve is improved.

Preferably, the axes of the two fixed clamping rollers intersect in a non-coplanar manner and form an acute angle of not more than 1 degree, and the axis of one fixed clamping roller is vertical.

By adopting the technical scheme, the two fixed clamping rollers are arranged at the positions, when the inclined fixed clamping rollers rotate, the inclined fixed clamping rollers can generate component force in the vertical direction to the clamped valve rod part, and the vertical component force to the valve rod part is vertically upward by controlling the steering of the fixed clamping rollers, so that the valve conical surface is not easy to fall from the clamping mechanism when heated by the high-frequency heating coil, and the stability of the quenching treatment work of the valve conical surface is improved.

Preferably, the clamping mechanism further comprises a limiting rod arranged between the movable clamping roller and the two fixed clamping rollers, the axis of the limiting rod is vertical, and the valve rod part penetrates through the high-frequency heating coil and then abuts against the end part of the limiting rod.

By adopting the technical scheme, when the valve is clamped in the clamping mechanism and driven to rotate, the end of the valve rod is abutted to the limiting rod, so that the valve is not easy to move upwards due to upward component force of the inclined fixed clamping roller, meanwhile, the high-frequency heating coil is always sleeved at the conical surface of the valve to heat and quench the conical surface of the valve, the valve is prevented from being abraded in the rotating process due to contact with the high-frequency heating coil as far as possible, the quenching treatment effect of the valve is improved, and the quality of the valve is ensured.

Preferably, the limiting rod is vertically arranged in a lifting mode.

By adopting the technical scheme, the vertical lifting arrangement of the limiting rod is used for limiting the valves with different length sizes so as to improve the application range of the quenching system.

Preferably, the first driving assembly comprises a driving motor and a driving gear coaxially and fixedly connected with an output shaft of the driving motor, and two fixed clamping rollers are respectively and coaxially and fixedly provided with a driven gear meshed with the driving gear.

By adopting the technical scheme, the driving motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, so that the function of driving the two fixed clamping rollers to rotate in the same direction is realized, automatic control is easy to realize, and the processing efficiency of valve quenching treatment is improved.

Preferably, the second driving assembly comprises a driving cylinder which is fixedly arranged, an output shaft of the driving cylinder is horizontal and points to the position between the two fixed clamping rollers, and the movable clamping roller is rotatably connected with a piston rod of the driving cylinder.

By adopting the technical scheme, the movable clamping roller is driven to move close to or far away from the fixed clamping roller when the driving cylinder works so as to realize the function of clamping or loosening the valve, so that an operator can conveniently control the valve quenching operation or the blanking operation, and the production efficiency is improved.

Preferably, the high-frequency heating coil is circular, and the inner diameter of the high-frequency heating coil is larger than the diameter of the valve rod part and smaller than the maximum diameter of the valve head part.

By adopting the technical scheme, the shape and the size of the high-frequency heating coil are set, so that the high-frequency heating coil can heat the conical surface of the valve more uniformly, the heating effect on the conical surface of the valve is better, and the quenching treatment effect on the conical surface of the valve is improved.

Preferably, the clamping mechanism is vertically lifted and horizontally slid.

By adopting the technical scheme, the vertical height of the clamping mechanism is adjusted to adapt to the quenching processing of the air valves with different length sizes, and the horizontal movement of the clamping mechanism is convenient for adjusting the horizontal position of the clamping mechanism to adjust the processing station, so that the application range of the quenching system is enlarged.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the quenching treatment of the conical surface of the valve is needed, the rod part of the valve passes through the high-frequency heating coil and then is clamped by the clamping mechanism, the valve is driven to rotate, and the conical surface of the valve is heated in the high-frequency heating coil in the rotating process by utilizing the principle of high-frequency heating, so that the heating quenching of the conical surface of the valve is realized;

2. after the valve rod part penetrates through the high-frequency heating coil, the valve rod part is positioned between the movable clamping roller and the two fixed clamping rollers, the valve conical surface is surrounded by the high-frequency heating coil, the movable clamping roller is driven by the second driving assembly to abut against the valve rod part, the valve rod part is surrounded and clamped by the movable clamping roller and the two fixed clamping rollers, the two fixed clamping rollers are driven by the first driving assembly to rotate, the valve is driven to rotate, and the functions of clamping the valve and driving the valve to rotate are realized;

3. the clamping mechanism and the quenching mechanism are distributed up and down, the valve penetrates through the high-frequency heating coil from bottom to top during processing and is clamped by the clamping mechanism, after the conical surface of the valve is heated and quenched, the movable clamping roller loosens the valve, and the valve falls under the action of gravity to realize blanking, so that the working efficiency of quenching treatment of the conical surface of the valve is improved;

4. the two fixed clamping rollers are arranged at positions, when the inclined fixed clamping rollers rotate, the inclined fixed clamping rollers can generate component force in the vertical direction to the clamped valve rod part, the vertical component force to the valve rod part is enabled to be vertically upward by controlling the steering of the fixed clamping rollers, so that the valve conical surface is not easy to fall off from the clamping mechanism when being heated by the high-frequency heating coil, and the stability of quenching treatment work of the valve conical surface is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic structural view of the chucking mechanism and the quenching mechanism in the present embodiment;

FIG. 3 is a schematic view showing the meshing relationship between the driving gear and the driven gear in the present embodiment;

fig. 4 is a background art drawing in the present application.

Reference numerals: 1. a quenching mechanism; 1a, a high-frequency heating coil; 2. a work table; 3. a clamping mechanism; 4. fixing the clamping roller; 5. a movable nip roller; 6. mounting a plate; 7. a support plate; 8. a supporting seat; 9. a drive motor; 9a, a driving gear; 9b, a driven gear; 10. a limiting rod; 11. a mounting seat; 12. a second drive assembly; 12a, a driving cylinder; 12b, a supporting block; 12c, mounting blocks; 12c1, mounting groove; 13. a loop bar; 14. a return spring; 15. a third drive assembly; 15a, a first drive screw; 15b, a first guide bar; 16. a fourth drive assembly; 16a, a second drive screw; 16b, a first guide rail; 16c, a first driving seat; 16d, a third drive screw; 16e, a second guide rail; 16f and a second driving seat.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the embodiment of the application discloses a valve conical surface quenching system, which comprises a clamping mechanism 3 for clamping a valve and a quenching mechanism 1 for heating the valve.

Referring to fig. 1 and 2, the quenching mechanism 1 includes a high-frequency heating coil 1a and a power supply assembly for supplying power to the high-frequency heating coil 1a, the high-frequency heating coil 1a is formed by bending a copper tube integrally, and in order to fit the shape of the valve cone better, the high-frequency heating coil 1a is circular, the inner diameter of the high-frequency heating coil is larger than the diameter of the valve stem and smaller than the maximum diameter of the valve head, in this embodiment, the high-frequency heating coil 1a is arranged with a vertical axis, and the power supply assembly is an electric wire for supplying high-frequency alternating current to the high-frequency heating coil 1a and a high-frequency power supply (not shown in the figure); in this embodiment, the high-frequency heating coil 1a is fixed to a wall body, and can be installed according to actual site conditions in an actual production process. The high-frequency heating coil 1a is designed to fit the conical surface shape of the valve, and by using the principle of high-frequency heating, the high-frequency heating coil 1a generates a magnetic field inside when being electrified, and heats the metal valve penetrating through the high-frequency heating coil by using electromagnetic induction so as to realize the heating and quenching of the conical surface of the valve.

Referring to fig. 1 and 2, a workbench 2 is arranged below the quenching mechanism 1, a clamping mechanism 3 is arranged on the workbench 2 and above the quenching mechanism 1, and comprises a movable clamping roller 5 and two fixed clamping rollers 4 which are rotatably arranged, the axis of the movable clamping roller 5 is vertical, and the movable clamping roller 5 and the two fixed clamping rollers 4 are both arranged above the high-frequency heating coil 1a and surround the central axis of the high-frequency heating coil 1 a; the clamping mechanism 3 further comprises a first driving mechanism for driving the two fixed clamping rollers 4 to rotate.

The movable clamping roller 5 and the two fixed clamping rollers 4 are enclosed on the periphery of the central axis of the high-frequency heating coil 1a, the valve passing through the high-frequency heating coil 1a is clamped and rotated, so that the high-frequency heating coil 1a can heat and quench the valve, and in order to collect the quenched valve, a finished product basket is arranged below the high-frequency heating coil 1a on the workbench 2.

Referring to fig. 2, in order to prevent the pinch valve from falling off during quenching, the axes of one of the two fixed pinch rollers 4 is vertical, the axis of the other fixed pinch roller 4 is inclined, the axes of the two fixed pinch rollers 4 are intersected in different planes, and the acute angle formed by the axes of the two fixed pinch rollers 4 is not more than 1 degree, and in the embodiment, the included angle is 1 degree. The fixed clamping roller 4 is obliquely arranged, and generates upward component force on the valve when the valve is driven to rotate, so that the valve is not easy to fall off during quenching, and the normal quenching operation of the valve is ensured.

Referring to fig. 2, be provided with a vertical mounting panel 6 on workstation 2, mounting panel 6 is located one side of high frequency heating coil 1a, one side fixed mounting that mounting panel 6 is close to high frequency heating coil 1a has a horizontally backup pad 7, the length direction of backup pad 7 is perpendicular with mounting panel 6 place plane, the equal fixed mounting in both ends of backup pad 7 has two vertical spliced poles, one of them spliced pole is fixed in on mounting panel 6 through the bolt, two fixed centre gripping rollers 4 all rotate to be installed in backup pad 7 and lie in between two spliced poles, set up the cross slot that the air feed door passed in backup pad 7.

Referring to fig. 2 and 3, the upper ends of the two connecting columns are fixedly provided with a horizontal supporting seat 8, the first driving mechanism comprises a driving motor 9 fixedly installed above the supporting seat 8, an output shaft of the driving motor 9 vertically downwards and rotatably penetrates through the supporting seat 8, a driving gear 9a located on the lower side of the supporting seat 8 is coaxially and fixedly arranged on the output shaft of the driving motor 9, the upper ends of the two fixed clamping rollers 4 are coaxially and fixedly provided with driven gears 9b, and the two driven gears 9b are meshed with the driving gear 9a and are not meshed with each other. The fixed clamping roller 4 is driven to rotate by the matching of the driving motor 9, the driving gear 9a and the driven gear 9b, so that the control of an operator is facilitated, and the valve quenching machining efficiency is improved.

Referring to fig. 2, in order to prevent the valve from contacting the high-frequency heating coil 1a during quenching processing of the valve, a limiting rod 10 is mounted on the support base 8 and located between the movable clamping roller 5 and the two fixed clamping rollers 4, the limiting rod 10 is located above the high-frequency heating coil 1a and has a vertical axis, in this embodiment, the limiting rod 10 is coaxial with the high-frequency heating coil 1a, and the end of the valve, after passing through the high-frequency heating coil 1a, abuts against the limiting rod 10, so that the valve is not easily contacted with the high-frequency heating coil 1a and is not worn during processing, and in order to adapt to quenching processing of valves with various lengths and sizes, the limiting rod 10 is inserted into the support base 8 and is in threaded connection with the support base 8, so that the vertical height of the limiting rod 10 can be adjusted.

Referring to fig. 2, a vertically arranged and perpendicular mounting seat 11 is further fixedly mounted on the mounting plate 6, the mounting seat 11 is located on one side of the supporting plate 7 far away from the high-frequency heating coil 1a, one side of the mounting seat 11 is bent to form a connecting plate perpendicular to the mounting seat 11, the connecting plate is fixed on the mounting plate 6 through bolt bolting, the movable clamping roller 5 is rotatably mounted on the mounting seat 11 and located on one side of the mounting seat 11 close to the supporting plate 7, and in order to achieve the functions of clamping and loosening the valve by the clamping mechanism 3, the movable clamping roller 5 is further arranged on the mounting seat 11 in a sliding mode along the horizontal direction.

Referring to fig. 2, a second driving assembly 12 for driving the movable clamping roller 5 to slide is arranged on the mounting seat 11, the second driving assembly 12 includes a driving cylinder 12a fixedly mounted on one side of the mounting seat 11 away from the fixed clamping roller 4, the axis of the piston rod of the driving cylinder 12a is horizontal and perpendicular to the plane of the mounting seat 11, and the piston rod of the driving cylinder 12a points to between the two fixed clamping rollers 4; at the piston rod end fixed mounting who drives actuating cylinder 12a have a vertical and parallel supporting shoe 12b with mount pad 11, supporting shoe 12b deviates from one side fixed mounting who drives actuating cylinder 12a and has an installation piece 12c, the vertical both sides that installation piece 12c is close to fixed pinch roll 4 one side are established to the chamfer, and installation piece 12c is close to one side of pinch roll and offers the mounting groove 12c1 that is used for installing activity pinch roll 5, activity pinch roll 5 rotates and installs in mounting groove 12c1, and activity pinch roll 5 is close to the protruding mounting groove 12c1 of one side of fixed pinch roll 4. The movable clamping roller 5 is driven to move close to or far away from the fixed clamping roller 4 through the driving air cylinder 12a so as to realize the function of clamping or loosening the air valve, and the air valve is convenient to control by an operator so as to improve the processing efficiency.

Referring to fig. 2, in order to make the movable clamping roller 5 loosen the valve more quickly after the quenching process is completed, two loop bars 13 are arranged between the supporting block 12b and the mounting seat 11, the axes of the two loop bars 13 are both parallel to the axis of the piston rod of the driving cylinder 12a, the two loop bars 13 are respectively positioned at the upper side and the lower side of the piston rod of the driving cylinder 12a, and the two loop bars 13 are both fixed on the mounting seat 11 and are both slidably arranged on the supporting block 12 b; the two loop bars 13 are all sleeved with a return spring 14, two ends of the return spring 14 are fixedly connected with the mounting seat 11 and the supporting block 12b respectively, and when the return spring 14 is in a natural state, the movable clamping roller 5 is in a state of loosening the air valve.

Referring to fig. 1, in order to facilitate adjustment of the horizontal position of the chucking mechanism 3 to accommodate the high-frequency heating coil 1a at different installation positions, the chucking mechanism 3 is horizontally slidably installed on the table 2, and a fourth driving unit 16 for driving the chucking mechanism 3 to horizontally slide is provided on the table 2.

Referring to fig. 1, the fourth driving assembly 16 includes a second driving screw 16a and two first guide rails 16b, which are all horizontally disposed, the second driving screw 16a is rotatably installed on the workbench 2, the two first guide rails 16b are both parallel to the second driving screw 16a and are respectively located at two sides of the second driving screw 16a, and first sliding grooves are respectively formed in the sides of the two first guide rails 16b, which are far away from each other, along the length direction thereof; a horizontal first driving seat 16c is arranged above the two first guide rails 16b, the lower side of the first driving seat 16c is connected with two first sliding blocks which are respectively embedded in the two first sliding grooves in a sliding manner, a first connecting block which is sleeved on the second driving screw 16a is further arranged at the bottom of the first driving seat 16c, the first connecting block and the second driving screw 16a are assembled in a threaded manner, and a hand wheel is fixedly arranged at one end of the second driving screw 16 a.

Referring to fig. 1, the fourth driving assembly 16 further includes a third driving screw 16d and two second guide rails 16e, which are horizontally disposed and parallel to each other, the third driving screw 16d is perpendicular to the second driving screw 16a, the third driving screw 16d is rotatably mounted on the first driving seat 16c, the two second guide rails 16e are respectively disposed at two sides of the third driving screw 16d and fixed on the first driving seat 16c, the two second guide rails 16e are respectively provided with a second sliding slot along the length direction thereof at the side away from each other, a horizontal second driving seat 16f is disposed above the two second guide rails 16e, the lower side of the second driving seat 16f is connected with two second sliding blocks respectively slidably embedded in the two second sliding slots, and a second connecting block sleeved on the third driving screw 16d is fixedly disposed at the lower side of the second driving seat 16f, and the second connecting block is threadedly assembled with the third driving screw 16d, a hand wheel is also fixedly arranged at one end of the third driving screw 16 d; the gripping mechanism 3 is provided on the second driving seat 16 f.

Referring to fig. 1, in order to enable the clamping mechanism 3 to be suitable for quenching processing of valves with various length dimensions, the clamping mechanism 3 is further vertically arranged on the workbench 2 in a lifting manner, a third driving assembly 15 for driving the clamping mechanism 3 to lift is arranged on the workbench 2, the third driving assembly 15 comprises a first driving screw 15a and a first guide rod 15b which are vertically arranged, the first driving screw 15a is rotatably arranged on a second driving seat 16f, the first guide rod 15b is fixedly arranged on the second driving seat 16f, one side of the mounting plate 6, which is far away from the clamping mechanism 3, is provided with lug seats respectively sleeved on the first driving screw 15a and the first guide rod 15b, and the lug seats sleeved on the first driving screw 15a are in threaded assembly with the first driving screw 15 a; a hand wheel is also fixedly arranged at the upper end of the first drive screw 15 a.

The implementation principle of the embodiment is as follows: when the quenching machining of the conical surface of the valve is carried out, the position of the clamping mechanism 3 is adjusted to correspond to the quenching mechanism 1 through the fourth driving assembly 16, the height of the clamping mechanism 3 is adjusted through the third driving assembly 15 according to the size of the valve to be machined, and the high-frequency heating coil 1a is supplied with power through a high-frequency power supply and an electric wire to generate a magnetic field in the high-frequency heating coil; the air valve penetrates through the high-frequency heating coil 1a, the rod part of the air valve is positioned between the two fixed clamping rollers 4 and the movable clamping roller 5, the height of the limiting rod 10 is adjusted, and when the air valve is abutted to the limiting rod 10, the high-frequency heating coil 1a is sleeved at the conical surface of the air valve; the movable clamping roller 5 is driven by the driving cylinder 12a to clamp the valve, the driving motor 9 is started to enable the fixed clamping roller 4 to rotate so as to drive the valve to rotate, the conical surface of the valve is heated by the high-frequency heating coil 1a when the valve rotates, quenching treatment on the conical surface of the valve is achieved, after quenching is completed, the movable clamping roller 5 moves away from the valve to loosen the valve, and the valve falls into a finished product basket to be naturally cooled.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The quenching system for the conical surface of the valve is characterized in that: the quenching device comprises a clamping mechanism (3) used for clamping or loosening the valve and a quenching mechanism (1) used for heating the valve, wherein the quenching mechanism (1) comprises a high-frequency heating coil (1a), the clamping mechanism (3) comprises a movable clamping roller (5) and two fixed clamping rollers (4) which are rotatably arranged, the central axis of the high-frequency heating coil (1a) is parallel to the axis of the movable clamping roller (5), the valve rod part penetrates through the high-frequency heating coil (1a) and is clamped by the clamping mechanism (3), and the clamping mechanism (3) is also used for driving the valve to rotate;

activity grip roller (5) and two fixed grip roller (4) are used for enclosing and close and carry out the centre gripping at valve pole portion week side to the valve, activity grip roller (5) slide and set up, fixture (3) are still including driving two fixed grip roller (4) syntropy pivoted first drive assembly, and the drive activity grip roller (5) support tight or loosen spiracular second drive assembly (12), two the axis antarafacial crossing of fixed grip roller (4) and the acute angle that becomes are not more than 1, and one of them the axis of fixed grip roller (4) is vertical.

2. The valve cone quenching system of claim 1, wherein: the clamping mechanism (3) is located above the quenching mechanism (1), and the axis of the movable clamping roller (5) is vertically arranged.

3. The valve cone quenching system of claim 1, wherein: fixture (3) still including set up in activity pinch rolls (5) and two gag lever post (10) between fixed pinch rolls (4), the axis of gag lever post (10) is vertical, valve rod portion pass behind high frequency heating coil (1a) with gag lever post (10) tip butt.

4. The valve cone quenching system of claim 3, wherein: the limiting rod (10) is vertically arranged in a lifting mode.

5. The valve cone quenching system of claim 1, wherein: the first driving assembly comprises a driving motor (9) and driving gears (9a) which are coaxially and fixedly connected with an output shaft of the driving motor (9), and driven gears (9b) which are meshed with the driving gears (9a) are respectively and coaxially and fixedly arranged on the two fixed clamping rollers (4).

6. The valve cone quenching system of claim 1, wherein: the second driving assembly (12) comprises a driving cylinder (12a) which is fixedly arranged, an output shaft of the driving cylinder (12a) is horizontal and points to two positions between the fixed clamping rollers (4), and the movable clamping roller (5) is rotationally connected with a piston rod of the driving cylinder (12 a).

7. The valve cone quenching system of claim 1, wherein: the high-frequency heating coil (1a) is annular, and the inner diameter of the high-frequency heating coil is larger than the diameter of the valve rod part and smaller than the maximum diameter of the valve head part.

8. The valve cone quenching system of claim 1, wherein: the clamping mechanism (3) is vertically lifted and horizontally slid.