Double-station induction quenching device

Abstract

The application belongs to the technical field of heat treatment process, and particularly relates to a double-station induction quenching device, which comprises an overflow tank and quenching tanks, two quenching tanks are arranged in the overflow tank at intervals, a mounting seat is arranged in the quenching tank, and a workpiece tray is rotatably connected to the mounting seat; a lifting mechanism is arranged at the bottom of the overflow tank, a driving end of the lifting mechanism is connected to the bottom of the mounting seat; a rotating mechanism is arranged below the overflow tank, a driving end of the rotating mechanism is upwardly connected to the bottom of the workpiece tray; a linear driving mechanism is arranged on the rear sidewall of the overflow tank; an induction quenching mechanism is arranged on the driving end of the linear driving mechanism, and the linear driving mechanism can drive the induction quenching mechanism to reciprocate between the two quenching tanks; a cooling spraying mechanism is arranged below the overflow tank, a water inlet of the cooling spraying mechanism is communicated with a water outlet of the overflow tank, and a water outlet of the cooling spraying mechanism extends into the two quenching tanks, and the induction quenching processing efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of heat treatment process, and particularly relates to a double-station induction quenching device. BACKGROUND

[0002] Induction heating equipment, including high frequency, medium frequency and other types, is a kind of quenching machine tool, or a brief version of quenching machine tool. Induction heating equipment includes induction heating power supply and quenching inductor (quenching induction coil). The power supply is provided by the induction heating power supply, and the quenching inductor generates a high-frequency alternating magnetic field. According to Faraday's law of electromagnetic induction, the workpiece in the magnetic field generates induced current. Due to the skin effect, the workpiece will heat up rapidly, thereby achieving the purpose of quenching the workpiece later.

[0003] The existing induction quenching equipment utilizes electromagnetic induction phenomenon to generate high temperature on the surface of the workpiece for a short time when the annular workpiece passes through the induction quenching mechanism, and then the cooling liquid sprayed by the water sprayer is used to rapidly cool the workpiece to achieve quenching processing. The existing induction quenching equipment can only take down the workpiece after cooling is completed to replace another workpiece for induction quenching. The single-piece processing time is long, especially when the workpiece is large in size, the process of replacing the workpiece is relatively complex, and it is time-consuming and laborious to process batch workpieces, which greatly reduces the work efficiency. Moreover, the cooling method is single, the cooling efficiency is low, and the quenching processing efficiency of the workpiece is low. In addition, the cooling water sprayed by the water sprayer of the quenching inductor cannot be effectively collected and reused, resulting in a large amount of water resources. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a double-station induction quenching device to solve the problem that the existing induction quenching equipment can only take down the workpiece after cooling is completed to replace another workpiece for induction quenching. Especially when the workpiece is large in size, the process of replacing the workpiece is relatively complex, and it is time-consuming and laborious to process batch workpieces, which greatly reduces the work efficiency. Moreover, the cooling method is single, the cooling efficiency is low, and the quenching processing efficiency of the workpiece is low. In addition, the cooling water sprayed by the water sprayer of the quenching inductor cannot be effectively collected and reused, resulting in a large amount of water resources.

[0005] The technical scheme adopted by the present application is as follows: a double-station induction quenching device, comprising an overflow tank and a quenching tank, two quenching tanks are arranged in the overflow tank in a spaced manner, a mounting seat is arranged in the quenching tank, a workpiece tray is rotatably connected to the mounting seat, and a workpiece is clamped to the workpiece tray.

[0006] Lifting mechanisms, two of which are arranged at the bottom of the overflow tank, the driving ends of the two lifting mechanisms penetrating the bottom of the overflow tank and quenching tank in turn and being connected with the bottom of the mounting seat in the two quenching tanks respectively;

[0007] Rotating mechanisms, two of which are arranged below the overflow tank, the driving ends of the two rotating mechanisms penetrating the bottom of the overflow tank and quenching tank in turn and being connected with the bottom of the workpiece tray in the two quenching tanks respectively, capable of driving the workpiece tray to rotate;

[0008] Linear driving mechanisms arranged on the rear sidewall of the overflow tank;

[0009] Induction quenching mechanisms arranged on the driving end of the linear driving mechanism, the linear driving mechanism being capable of driving the induction quenching mechanism to reciprocate between the two quenching tanks;

[0010] Cooling spraying mechanisms arranged below the overflow tank, the water inlet of the cooling spraying mechanism being communicated with the water outlet of the overflow tank, the water outlet of the cooling spraying mechanism extending into the two quenching tanks, the cooling spraying mechanism being capable of collecting and cooling the water in the overflow tank and spraying into the two quenching tanks.

[0011] Further, the lifting mechanisms comprise a first motor, a first lead screw, a first lead screw nut, columns, a mounting plate and a first transmission assembly, the mounting plate being arranged below the overflow tank, the columns being four in number, the lower ends of the four columns being connected at the four corners of the mounting plate, the upper ends of the four columns penetrating the bottom of the overflow tank and quenching tank in turn and being connected with the bottom of the mounting seat, the four columns being in sliding connection with the bottom of the overflow tank and quenching tank, the first motor being arranged above the mounting plate, the driving end of the first motor being connected with the upper end of the first lead screw through the first transmission assembly, the lower end of the first lead screw penetrating the mounting plate downward, the first lead screw nut being threadedly sleeved on the first lead screw, the lower end of the first lead screw nut penetrating the mounting plate and being fixedly sleeved in the mounting plate.

[0012] Further, the rotating mechanisms comprise a second motor, a second transmission assembly, a rotating shaft and a third transmission assembly, the second motor being arranged on the mounting plate, the driving end of the second motor being connected with the lower end of the rotating shaft through the second transmission assembly;

[0013] Any of the columns is in a hollow structure, the upper end of the rotating shaft penetrating the column and penetrating the mounting seat upward to be connected with the third transmission assembly, the rotating shaft being in rotary connection with the bottom of the workpiece tray through the third transmission assembly.

[0014] Further, the straight line driving mechanism comprises a support frame, a third motor, a second screw rod, a second screw rod nut, a first sliding rod and a first sliding block, the support frame is horizontally arranged on the rear side wall of the overflow tank, the third motor is arranged on the support frame, the driving end of the third motor penetrates the support frame inward and is connected with one end of the second screw rod, the second screw rod is horizontally rotationally connected in the support frame, the second screw rod nut is threadedly sleeved on the second screw rod, the first sliding rod is fixedly arranged in the support frame, the first sliding rod is arranged in parallel with the second screw rod, the first sliding block is slidingly sleeved on the first sliding rod, and the top of the second screw rod nut and the first sliding block is connected with the bottom of the induction quenching mechanism.

[0015] Further, the induction quenching mechanism comprises a base frame, an induction power supply and a quenching inductor, the bottom of the base frame is arranged on the top of the second screw rod nut and the first sliding block, the induction power supply is mounted on the base frame, and the quenching inductor is arranged on the front side wall of the induction power supply, and the working end of the quenching inductor is located above the workpiece tray.

[0016] Further, the cooling spray mechanism comprises a water pump, a condenser, a circulating water tank, a backwater pump, a shunt pipe and a spray assembly.

[0017] A drain port is arranged on the rear side wall of the overflow tank, the drain port is communicated with the water inlet of the water pump through a pipeline, the water outlet of the water pump is communicated with the water inlet of the condenser through a pipeline, the water outlet of the condenser is communicated with the water inlet of the circulating water tank through a pipeline, the water outlet of the circulating water tank is communicated with the water inlet of the backwater pump through a pipeline, the water outlet of the backwater pump is communicated with the water inlet of the middle section of the shunt pipe, the water outlets at the two ends of the shunt pipe extend above the two quenching water tanks respectively, the two ends of the shunt pipe are connected with the spray assemblies, and the spray assemblies are arranged in the quenching water tanks.

[0018] Further, the spray assembly comprises a water guide pipe, a vertical pipe and a spray pipe, the water guide pipe is horizontally arranged above the quenching water tank, the water outlets at the two ends of the shunt pipe are communicated with the water inlets of the middle section of the water guide pipe, the water outlets at the two ends of the water guide pipe are communicated with the vertical pipes, the two vertical pipes are vertically and fixedly arranged on the front and rear inner circumferential walls of the quenching water tank respectively, two spray pipes are communicated with the side wall of the vertical pipe at intervals, the spray pipe is fixedly connected with the inner circumferential wall of the quenching water tank, and a plurality of spray openings are arranged in an array on the inner side wall of the spray pipe.

[0019] Further, a sliding hole is arranged at the center position of the workpiece, a limiting column protruding upward is arranged at the center position of the upper surface of the workpiece tray and corresponds to the sliding hole, the limiting column is slidingly connected with the sliding hole, a plurality of limiting protrusions are circumferentially arranged on the bottom of the workpiece, a plurality of clamping protrusions are circumferentially arranged on the upper surface of the workpiece tray, a clamping groove is arranged on the clamping protrusion, and the limiting protrusion is clamped with the clamping groove.

[0020] The beneficial effects of the present application are as follows:

[0021] The present application can clamp two workpieces on the workpiece trays in two quenching water tanks respectively, then drive the induction quenching mechanism to move above any workpiece by starting the linear drive mechanism, align the induction quenching mechanism above the workpiece, so that the induction quenching mechanism performs induction quenching on the workpiece, at the same time, drive the workpiece tray to rotate by starting the corresponding rotating mechanism below the workpiece, so that the workpiece can rotate during induction quenching, so that the induction quenching effect is better, and the induction quenching efficiency is improved; after induction quenching is completed, drive the mounting seat downward by starting the corresponding lifting mechanism below the workpiece, so that the workpiece after induction quenching can enter the quenching water tank for cooling, at the same time, the water overflowing from the quenching water tank into the overflow tank is transported to the cooling spray mechanism with a certain amount of heat, the water in the overflow tank can be collected and cooled, and sprayed into the two quenching water tanks, while the workpiece is immersed and cooled in the quenching water tank, the workpiece in the quenching water tank is cooled multiple times by the cooling spray mechanism, the cooling efficiency is improved, and the workpiece quenching efficiency is improved, the next workpiece to be quenched can be replaced, the quenching processing efficiency is improved, the water overflowing from the quenching water tank can be recycled and cooled for reuse, water is saved, and energy consumption is reduced; after the workpiece induction quenching is completed, the induction quenching mechanism is moved above another installed workpiece by starting the linear drive mechanism, while the previous workpiece is cooled, another workpiece can be induction quenched, and the above operation is repeated for induction quenching and cooling, in addition, when the workpiece in the previous work station is cooled, another workpiece to be induction quenched can be replaced, the induction quenching equipment with double workstations facilitates alternating induction quenching of workpieces in two quenching water tanks, and the workpiece induction quenching processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a perspective structural schematic diagram (first view angle) of the present application;

[0023] Fig. 2 It is a perspective structural schematic diagram (second view angle) of the present application;

[0024] Fig. 3 It is a perspective structural schematic diagram (third view angle) of the present application;

[0025] Fig. 4 It is a connection structure schematic diagram of the lifting mechanism, rotating mechanism and spray assembly of the present application;

[0026] The drawings are as follows:

[0027] Overflow tank 1, quenching tank 2, mounting seat 3, workpiece tray 31, limiting column 32, clamping block 33, clamping groove 34, lifting mechanism 4, first motor 41, first lead screw 42, first lead screw nut 43, column 44, mounting plate 45, first transmission assembly 46, rotating mechanism 5, second motor 51, second transmission assembly 52, rotating shaft 53, third transmission assembly 54, linear drive mechanism 6, support frame 61, third motor 62, second lead screw 63, second lead screw nut 64, first sliding rod 65, first sliding block 66, induction quenching mechanism 7, base frame 71, induction power supply 72, quenching inductor 73, cooling spray mechanism 8, water pump 81, condenser 82, circulating water tank 83, backwater pump 84, shunt pipe 85, water guide pipe 86, vertical pipe 87, spray pipe 88, workpiece 9, sliding hole 91, limiting block 92. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0029] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Example one:

[0032] As shown in Figs. 1-4 A double-station induction quenching device, comprising an overflow tank 1 and a quenching tank 2, two quenching tanks 2 are arranged in the overflow tank 1 in a spaced manner, a mounting seat 3 is arranged in the quenching tank 2, a workpiece tray 31 is rotatably connected to the mounting seat 3, and a workpiece 9 is clamped on the workpiece tray 31;

[0033] In the embodiment, the bottom of the overflow tank 1 is circumferentially provided with four supporting legs, and the quenching water tank 2 is filled with cooling water;

[0034] The lifting mechanism 4 is provided in two, and the driving ends of the two lifting mechanisms 4 penetrate the bottoms of the overflow tank 1 and the quenching tank in sequence and are connected with the bottoms of the mounting seats 3 in the two quenching water tanks 2, respectively;

[0035] The rotating mechanism 5 is provided in two, and the driving ends of the two rotating mechanisms 5 penetrate the bottoms of the overflow tank 1 and the quenching tank in sequence and are connected with the bottoms of the workpiece trays 31 in the two quenching water tanks 2, respectively, so as to drive the workpiece trays 31 to rotate;

[0036] The linear driving mechanism 6 is provided on the rear sidewall of the overflow tank 1;

[0037] The induction quenching mechanism 7 is provided on the driving end of the linear driving mechanism 6, and the linear driving mechanism 6 can drive the induction quenching mechanism 7 to reciprocate between the two quenching water tanks 2;

[0038] The cooling spraying mechanism 8 is provided below the overflow tank 1, the water inlet of the cooling spraying mechanism 8 is communicated with the water outlet of the overflow tank 1, the water outlet of the cooling spraying mechanism 8 extends into the two quenching water tanks 2, and the cooling spraying mechanism 8 can collect and cool the water in the overflow tank 1 and spray it into the two quenching water tanks 2.

[0039] As a preferred scheme, the lifting mechanism 4 comprises a first motor 41, a first lead screw 42, a first lead screw nut 43, four columns 44, a mounting plate 45 and a first transmission assembly 46. The mounting plate 45 is arranged below the overflow tank 1. The four columns 44 are arranged at four corners of the mounting plate 45. The upper ends of the four columns 44 are sequentially penetrated through the bottom of the overflow tank 1 and the quenching tank 2 and are connected with the bottom of the mounting base 3. The four columns 44 are in sliding connection with the bottom of the overflow tank 1 and the quenching tank 2. The first motor 41 is arranged above the mounting plate 45. The driving end of the first motor 41 is connected with the upper end of the first lead screw 42 through the first transmission assembly 46. The lower end of the first lead screw 42 is penetrated through the mounting plate 45 downward. The first lead screw nut 43 is threadedly sleeved on the first lead screw 42. The lower end of the first lead screw nut 43 is penetrated through the mounting plate 45 and is fixedly sleeved in the mounting plate 45. The first motor 41 is started to drive the first lead screw 42 to rotate, thereby driving the first lead screw nut 43 to move up and down on the first lead screw 42. The first lead screw nut 43 is fixedly sleeved on the mounting plate 45. The first lead screw nut 43 drives the mounting plate 45 and the columns 44 on the mounting plate 45 to move up and down, thereby driving the mounting base 3 at the upper end of the columns 44 and the workpiece tray 31 on the mounting base 3 to move up and down. When induction quenching of the workpiece 9 is needed, the workpiece 9 is driven to move upward to a position for induction quenching. After the induction quenching of the workpiece 9 is completed, the workpiece 9 is driven to move downward into the quenching tank 2 for cooling and continuous cooling of the workpiece 9 by the cooling spraying mechanism 8, so that the cooling effect is better.

[0040] In the embodiment, sealing sleeves are arranged at the connection positions of the four columns 44 and the overflow tank 1 and the quenching tank 2, so that water in the overflow tank 1 and the quenching tank 2 is prevented from seeping out through the connection positions of the columns 44.

[0041] As a preferred scheme, the rotating mechanism 5 comprises a second motor 51, a second transmission assembly 52, a rotating shaft 53 and a third transmission assembly 54. The second motor 51 is arranged on the mounting plate 45. The driving end of the second motor 51 is connected with the lower end of the rotating shaft 53 through the second transmission assembly 52. Any one of the columns 44 is in a hollow structure. The upper end of the rotating shaft 53 is penetrated through the column 44 and is connected with the third transmission assembly 54 upward through the mounting base 3. The rotating shaft 53 is in rotary connection with the bottom of the workpiece tray 31 through the third transmission assembly 54. The second motor 51 is started to drive the second transmission assembly 52 to drive the rotating shaft 53 to rotate. The rotating shaft 53 is penetrated through the column 44 in the hollow structure and is connected with the third transmission assembly 54 upward. The workpiece tray 31 is driven to rotate through the third transmission assembly 54. The structure is simple. In the state that the mounting base 3 can be lifted, the workpiece tray 31 on the mounting base 3 can be driven to rotate. The mounting is convenient.

[0042] As a preferred scheme, the straight line driving mechanism 6 comprises a support frame 61, a third motor 62, a second lead screw 63, a second lead screw nut 64, a first sliding rod 65 and a first sliding block 66, the support frame 61 is horizontally arranged on the rear side wall of the overflow tank 1, the third motor 62 is arranged on the support frame 61, the driving end of the third motor 62 penetrates the support frame 61 inward and is connected with one end of the second lead screw 63, the second lead screw 63 is horizontally rotationally connected in the support frame 61, the second lead screw nut 64 is threadedly sleeved on the second lead screw 63, the first sliding rod 65 is fixedly arranged in the support frame 61, the first sliding rod 65 is arranged in parallel with the second lead screw 63, the first sliding block 66 is slidably sleeved on the first sliding rod 65, and the top of the second lead screw nut 64 and the first sliding block 66 are connected with the bottom of the induction quenching mechanism 7. By starting the third motor 62 to drive the second lead screw 63 to rotate, the second lead screw nut 64 is driven to move horizontally and reciprocatingly on the second lead screw 63, so that the induction quenching mechanism 7 at the top of the second lead screw nut 64 is driven to move reciprocatingly on the first sliding rod 65 through the first sliding block 66, and the workpieces 9 in the two quenching water tanks 2 are conveniently subjected to induction quenching, and the working efficiency is higher.

[0043] In the embodiment, the first sliding rod 65 is provided as two, the two first sliding rods 65 are symmetrically arranged on the two sides of the second lead screw 63, and the two first sliding rods 65 are slidably connected with sliding blocks, and the top of the two sliding blocks is connected with the bottom of the induction quenching mechanism 7. By symmetrically arranging the two first sliding rods 65 on the two sides of the second lead screw 63, the induction quenching mechanism 7 is more stable when moving reciprocatingly on the sliding rod.

[0044] As a preferred scheme, the induction quenching mechanism 7 comprises a base frame 71, an induction power supply 72 and a quenching inductor 73, the bottom of the base frame 71 is arranged at the top of the second lead screw nut 64 and the first sliding block 66, the induction power supply 72 is mounted on the base frame 71, the quenching inductor 73 is arranged on the front side wall of the induction power supply 72, and the working end of the quenching inductor 73 is located above the workpiece tray 31. By arranging the induction quenching mechanism 7 as the base frame 71, the induction power supply 72 and the quenching inductor 73, the induction power supply 72 can move synchronously with the quenching inductor 73, so that the induction power supply 72 can supply power to the quenching inductor 73 in time.

[0045] In the embodiment, the chassis 71 is provided with an adjusting mechanism between the second lead screw nut 64 and the first sliding block 66, the adjusting mechanism comprising a fourth motor, a third lead screw, a third lead screw nut, a second sliding rod and a second sliding block, the fourth motor being arranged on the rear side wall of the chassis 71, the driving end of the fourth motor penetrating through the chassis 71 and being connected with the third lead screw, the third lead screw being horizontally and rotationally arranged in the chassis 71 in a direction perpendicular to the second lead screw 63, the second lead screw 63 being distributed in the front-rear direction of the quenching water tank 2, the third lead screw being distributed in the left-right direction of the quenching water tank 2, the third lead screw nut being threadedly sleeved on the second lead screw 63, the second sliding rod being arranged in two and being symmetrically distributed on the two sides of the second lead screw 63, the second sliding block being slidably connected on the two second sliding rods, and the third lead screw nut and the two second sliding blocks being connected with the bottom of the induction power supply 72. By arranging the adjusting mechanism, the fourth motor is started to drive the third lead screw to rotate, thereby driving the third lead screw nut to horizontally reciprocate on the third lead screw, thereby driving the induction quenching mechanism 7 at the top of the third lead screw nut to move on the second sliding rod through the second sliding block, so as to adjust the distance of the induction quenching mechanism 7 in the front-rear direction of the quenching water tank 2, so that the position of the induction quenching mechanism 7 can correspond to the position of the workpiece 9 on the workpiece tray 31, and the position error existing when the workpiece 9 is installed is avoided to affect the induction quenching effect.

[0046] As a preferred solution, the cooling spray mechanism 8 comprises a water pump 81, a condenser 82, a circulating water tank 83, a backwater pump 84, a shunt pipe 85 and a spray assembly; a drain port is formed in the rear side wall of the overflow tank 1, the drain port is communicated with the water inlet of the water pump 81 through a pipeline, the water outlet of the water pump 81 is communicated with the water inlet of the condenser 82 through a pipeline, the water outlet of the condenser 82 is communicated with the water inlet of the circulating water tank 83 through a pipeline, the water outlet of the circulating water tank 83 is communicated with the water inlet of the backwater pump 84 through a pipeline, the water outlet of the backwater pump 84 is communicated with the water inlet of the middle section of the shunt pipe 85, the water outlets at both ends of the shunt pipe 85 extend to above the two quenching water tanks 2 respectively, the shunt pipe 85 is connected with the spray assembly at both ends, and the spray assembly is arranged in the quenching water tank 2. By starting the water pump 81, the water with a certain heat in the quenching water tank 2 overflowing into the overflow tank 1 is pumped to the condenser 82, and after being cooled by the condenser 82, the cooling water is transported to the circulating water tank 83 for storage. When the workpiece 9 needs to be cooled after induction quenching, the backwater pump 84 is started to pump the cooling water in the circulating water tank 83 to the shunt pipe 85 and then to the spray assembly, so that the workpiece 9 in the quenching water tank 2 is subjected to secondary cooling by the spray assembly. In this embodiment, the quenching water tank 2 is always filled with cooling water, so that the workpiece 9 after induction quenching can be soaked in the cooling water in the quenching water tank 2 for cooling, and the workpiece 9 in the quenching water tank 2 is subjected to secondary cooling by the spray assembly, so that the workpiece 9 after induction quenching has better cooling effect and the machining efficiency is improved. Through the cooperation of the water pump 81, the condenser 82, the circulating water tank 83, the backwater pump 84, the shunt pipe 85 and the spray assembly, the water overflowing from the quenching water tank 2 can be recycled and cooled for circulation, water is saved, and energy consumption is reduced.

[0047] As a preferred solution, the spray assembly comprises a water guide pipe 86, a vertical pipe 87 and a spray pipe 88, the water guide pipe 86 is horizontally arranged above the quenching tank 2, the water outlet of the shunt pipe 85 is communicated with the water inlet of the middle section of the water guide pipe 86, the water outlets at both ends of the water guide pipe 86 are communicated with the vertical pipes 87, the two vertical pipes 87 are vertically fixedly arranged on the front and rear inner circumferential walls of the quenching tank 2 respectively, the side wall of the vertical pipe 87 is communicated with two spray pipes 88 at intervals, the spray pipe 88 is fixedly connected to the inner circumferential wall of the quenching tank 2, and a plurality of spray openings arranged in an array are formed in the inner side wall of the spray pipe 88. The water for cooling circulation is delivered to the shunt pipe 85 by the water return pump 84, and is delivered to the water guide pipe 86 above the two quenching tanks 2 through the two ends of the shunt pipe 85, and the cooling water is delivered to the vertical pipe 87 from the water guide pipe 86. In this embodiment, the lower end of the vertical pipe 87 is in a closed state, the cooling water in the vertical pipe 87 enters the spray pipe 88, and under the action of the water return pump 84 and the spray opening, the cooling water sprays the workpiece 9, so that the workpiece 9 after induction quenching can be soaked in the cooling water in the quenching tank 2 for cooling, and the workpiece 9 in the quenching tank 2 is subjected to multiple cooling by the spray assembly, so that the workpiece 9 after induction quenching has better cooling effect and the processing efficiency is improved.

[0048] In this embodiment, the water outlets at both ends of the shunt pipe 85 and the corresponding water guide pipes 86 are provided with electromagnetic valves. By arranging electromagnetic valves between the shunt pipe 85 and the water guide pipe 86, since the workpieces 9 in the two quenching tanks 2 are subjected to induction quenching in sequence, when the workpiece 9 in any quenching tank 2 is finished induction quenching, the electromagnetic valve on the corresponding side is opened, so that the circulating cooling water can spray and cool the workpiece 9 after induction quenching, and the electromagnetic valve on the other side is in a closed state and does not supply water to the corresponding quenching tank 2, thereby saving water and reducing energy consumption.

[0049] As a preferred solution, a sliding hole 91 is formed at the center position of the workpiece 9, an upward protruding limiting column 32 is arranged at the center position of the upper surface of the workpiece tray 31 and corresponds to the sliding hole 91, the limiting column 32 is in sliding connection with the sliding hole 91, a plurality of limiting protrusions 92 are arranged in a circumferential array at the bottom of the workpiece 9, a plurality of clamping protrusions 33 are arranged in a circumferential array on the upper surface of the workpiece tray 31, a clamping groove 34 is formed in the clamping protrusion 33, and the limiting protrusion 92 is clamped with the clamping groove 34. The limiting column 32 and the sliding hole 91 are in sliding connection, so that the workpiece 9 can be quickly limited and positioned on the workpiece tray 31, the limiting protrusion 92 and the clamping groove 34 are clamped, so that the workpiece 9 can be clamped and fixed on the workpiece tray 31, the rotation process of the workpiece 9 during induction quenching is more stable, the installation and disassembly of the workpiece 9 are facilitated, the replacement is convenient, the processing efficiency is improved.

[0050] As a preferred scheme, the first transmission assembly 46 comprises a fixed frame, a first driving gear and a first driven gear, the fixed frame is arranged at the bottom of the overflow tank 1, the first motor 41 is installed on the fixed frame, the driving end of the first motor 41 is connected with the first driving gear, the first driven gear is sleeved on the upper end of the first lead screw 42, and the first driving gear and the first driven gear are engaged. By starting the first motor 41 to drive the first driving gear to rotate, the first driving gear drives the first driven gear to rotate, the first driven gear drives the first lead screw 42 to rotate, so that the first lead screw 42 drives the first lead screw nut 43 to move up and down on the first lead screw 42 reciprocatingly, and then the first lead screw 42 drives the vertical column 44 to move vertically reciprocatingly, so that the workpiece 9 can enter the quenching water tank 2 for cooling after induction quenching, and the structure is simple and easy to operate.

[0051] As a preferred scheme, the second transmission assembly 52 comprises a second driving gear and a second driven gear, the driving end of the second motor 51 is connected with the second driving gear, the second driven gear is sleeved on the lower end of the rotating shaft 53, and the second driving gear and the second driven gear are engaged; the third transmission assembly 54 comprises a third driving gear and a third driven gear, the third driving gear is sleeved on the upper end of the rotating shaft 53, the third driven gear is rotationally connected to the central position on the upper surface of the mounting seat 3, a connecting rod is connected to the upper surface of the third driven gear, the lower end of the connecting rod is connected with the workpiece tray 31, and the third driving gear and the third driven gear are engaged. By starting the second motor 51 to drive the second driving gear to rotate, the second driving gear drives the second driven gear to rotate, the second driven gear drives the rotating shaft 53 to rotate in the hollow vertical column 44, so that the third driving gear at the upper end of the rotating shaft 53 is driven to rotate, the third driving gear drives the third driven gear to rotate, and the third driven gear drives the workpiece tray 31 to rotate, so that the workpiece 9 can rotate during induction quenching, the induction quenching effect is better, the structure is simple and easy to operate.

[0052] The working mode of the present application is as follows:

[0053] In use, two annular workpieces 9 are clamped on the workpiece trays 31 in the two quenching water tanks 2, and in this embodiment, the annular workpieces 9 are core plates for manufacturing trains. Then the third motor 62 is started to drive the second lead screw 63 to rotate, and the second lead screw nut 64 is moved on the second lead screw 63 to above any workpiece 9, and the quenching inductor 73 is aligned above the workpiece 9. Then the induction power supply 72 is started to induce the quenching inductor 73 to heat the workpiece 9, and the corresponding second motor 51 below the workpiece 9 is started to drive the second driving gear to rotate, which drives the second driven gear to rotate, and the second driven gear drives the rotating shaft 53 to rotate in the hollow stand 44, thereby driving the third driving gear on the upper end of the rotating shaft 53 to rotate, which drives the third driven gear to rotate, and the third driven gear drives the workpiece tray 31 to rotate, so that the workpiece 9 can rotate during induction quenching, and the induction quenching effect is better, and the induction quenching efficiency is improved. When the induction quenching is completed, the corresponding first motor 41 below the workpiece 9 is started to drive the first driving gear to rotate, which drives the first driven gear to rotate, and the first driven gear drives the first lead screw 42 to rotate, so that the first lead screw 42 drives the first lead screw nut 43 to reciprocate up and down on the first lead screw 42, thereby driving the stand 44 to move vertically downward, so that the workpiece 9 after induction quenching can enter the quenching water tank 2 for cooling. At the same time, the water pump 81 is started to pump the water with a certain amount of heat overflowing from the quenching water tank 2 into the overflow tank 1 to the condenser 82, which is cooled by the condenser 82, and then the cooled water is transported to the circulating tank 83 for storage. When the workpiece 9 needs to be cooled after induction quenching, the water pump 84 is started to pump the cooling water in the circulating tank 83 to the shunt pipe 85 and then to the spraying assembly. While the workpiece 9 is immersed and cooled in the quenching water tank 2, the workpiece 9 in the quenching water tank 2 is subjected to multiple cooling by the spraying assembly, the cooling efficiency is improved, the quenching efficiency of the workpiece 9 is improved, the next workpiece 9 to be quenched can be replaced conveniently, and the quenching processing efficiency is improved. Through the cooperation of the water pump 81, the condenser 82, the circulating tank 83, the water pump 84, the shunt pipe 85 and the spraying assembly, the water overflowing from the quenching water tank 2 can be recycled and cooled for circulation, water is saved, and energy consumption is reduced.When the workpiece 9 is inducted and quenched, the third motor 62 is started to drive the second lead screw 63 to rotate, thereby driving the second lead screw nut 64 to move horizontally on the second lead screw 63, thereby driving the inductive quenching mechanism 7 on the top of the second lead screw nut 64 to move on the first slide rod 65 through the first slide block 66 to above another installed workpiece 9, while the last workpiece 9 is cooled, another workpiece 9 can be inducted and quenched, and the above operation is repeated to induct and quench and cool, in addition, when the workpiece 9 in the last work station is cooled, another workpiece 9 to be inducted and quenched can be replaced, the inductive quenching equipment with double work stations facilitates alternating inductive quenching of the workpieces 9 in the two quenching water tanks 2, and the inductive quenching processing efficiency of the workpieces 9 is improved.

[0054] The present application is described in detail above. The description of the specific embodiments is only used to help understand the method of the present application and its core idea. It should be noted that for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A two-station induction hardening apparatus, characterized by: The utility model relates to a quenching device for workpiece, including Overflow tank (1) and quenching tank (2), two quenching tanks (2) are arranged in the interval in overflow tank (1), mounting seat (3) is provided in quenching tank (2), workpiece tray (31) is rotatably connected on mounting seat (3), workpiece (9) is clamped on workpiece tray (31); Lifting mechanism (4), two lifting mechanisms (4) are provided, two lifting mechanisms (4) are arranged at the bottom of overflow tank (1), the driving end of two lifting mechanisms (4) penetrates the bottom of overflow tank (1) and quenching tank (2) upwards in turn and is connected with the bottom of mounting seat (3) in two quenching tanks (2) respectively, Rotating mechanism (5), two rotating mechanisms (5) are provided, two rotating mechanisms (5) are arranged below overflow tank (1), the driving end of two rotating mechanisms (5) penetrates the bottom of overflow tank (1) and quenching tank (2) upwards in turn and is connected with the bottom of workpiece tray (31) in two quenching tanks (2) respectively, can drive workpiece tray (31) rotation, Linear drive mechanism (6) is arranged on the rear side wall of overflow tank (1), Induction quenching mechanism (7) is arranged on the driving end of linear drive mechanism (6), linear drive mechanism (6) can drive induction quenching mechanism (7) reciprocatingly move between two quenching tanks (2), Cooling spray mechanism (8) is arranged below overflow tank (1), the water inlet of cooling spray mechanism (8) is communicated with the water outlet of overflow tank (1), the water outlet of cooling spray mechanism (8) extends into two quenching tanks (2), cooling spray mechanism (8) can collect and cool the water in overflow tank (1) and spray into two quenching tanks (2), The lifting mechanism (4) includes first motor (41), first screw rod (42), first screw nut (43), stand (44), mounting plate (45) and first transmission assembly (46), the mounting plate (45) is arranged below overflow tank (1), four stands (44) are provided, the lower end of four stands (44) is connected at the four corners of mounting plate (45), the upper end of four stands (44) penetrates the bottom of overflow tank (1) and quenching tank (2) upwards in turn and is connected with the bottom of mounting seat (3), four stands (44) are all slidingly connected with the bottom of overflow tank (1) and quenching tank (2), first motor (41) is arranged above mounting plate (45), the driving end of first motor (41) is connected with the upper end of first screw rod (42) through first transmission assembly (46), the lower end of first screw rod (42) penetrates mounting plate (45) downwards, first screw nut (43) is threadedly sleeved on first screw rod (42), the lower end of first screw nut (43) penetrates mounting plate (45) and is fixedly sleeved in mounting plate (45), The rotating mechanism (5) comprises a second motor (51), a second transmission assembly (52), a rotating shaft (53) and a third transmission assembly (54), the second motor (51) is arranged on the mounting plate (45), and the driving end of the second motor (51) is connected with the lower end of the rotating shaft (53) through the second transmission assembly (52); Any one of the columns (44) is a hollow structure, the upper end of the rotating shaft (53) penetrates the column (44), and penetrates the mounting seat (3) to be connected with the third transmission assembly (54) upwardly, and the rotating shaft (53) is rotatably connected with the bottom of the workpiece tray (31) through the third transmission assembly (54); The cooling spray mechanism (8) comprises a water pump (81), a condenser (82), a circulating water tank (83), a backwater pump (84), a shunt pipe (85) and a spray assembly; A drain port is formed in the rear side wall of the overflow tank (1), the drain port is communicated with the water inlet of the water pump (81) through a pipeline, the water outlet of the water pump (81) is communicated with the water inlet of the condenser (82) through a pipeline, the water outlet of the condenser (82) is communicated with the water inlet of the circulating water tank (83) through a pipeline, the water outlet of the circulating water tank (83) is communicated with the water inlet of the backwater pump (84) through a pipeline, the water outlet of the backwater pump (84) is communicated with the water inlet of the middle section of the shunt pipe (85), the water outlets at both ends of the shunt pipe (85) extend to above the two quenching water tanks (2) respectively, and the shunt pipe (85) is connected with the spray assembly. The spray assembly comprises a water guide pipe (86), a vertical pipe (87) and a spray pipe (88), the water guide pipe (86) is horizontally arranged above the quenching water tank (2), the water outlets at both ends of the water guide pipe (86) are communicated with the water inlets of the vertical pipes (87) respectively, and the two vertical pipes (87) are vertically and fixedly arranged on the front and rear inner circumferential walls of the quenching water tank (2) respectively.

2. A double station induction quenching apparatus according to claim 1, characterized in that: The linear drive mechanism (6) comprises a support frame (61), a third motor (62), a second lead screw (63), a second lead screw nut (64), a first sliding rod (65) and a first sliding block (66), the support frame (61) is horizontally arranged on the rear side wall of the overflow tank (1), the third motor (62) is arranged on the support frame (61), the driving end of the third motor (62) penetrates the support frame (61) inward and is connected with one end of the second lead screw (63), the second lead screw (63) is horizontally rotationally connected in the support frame (61), the second lead screw nut (64) is threadedly sleeved on the second lead screw (63), the first sliding rod (65) is fixedly arranged in the support frame (61), the first sliding rod (65) is arranged in parallel with the second lead screw (63), the first sliding block (66) is slidably sleeved on the first sliding rod (65), and the top of the second lead screw nut (64) and the first sliding block (66) is connected with the bottom of the induction quenching mechanism (7).

3. A double station induction quenching apparatus according to claim 2, characterized in that: The induction quenching mechanism (7) comprises a base frame (71), an induction power supply (72) and a quenching inductor (73), the bottom of the base frame (71) is arranged on the top of the second lead screw nut (64) and the first sliding block (66), the induction power supply (72) is mounted on the base frame (71), the quenching inductor (73) is arranged on the front side wall of the induction power supply (72), and the working end of the quenching inductor (73) is located above the workpiece tray (31).

4. A double station induction quench apparatus as defined in claim 1 wherein: The center position of the workpiece (9) is provided with a sliding hole (91), the center position of the upper surface of the workpiece tray (31) is provided with an upward protruding limiting column (32) corresponding to the sliding hole (91), the limiting column (32) is in sliding connection with the sliding hole (91), a plurality of limiting protrusions (92) are circumferentially arranged on the bottom of the workpiece (9), a plurality of clamping protrusions (33) are circumferentially arranged on the upper surface of the workpiece tray (31), clamping grooves (34) are formed in the clamping protrusions (33), and the limiting protrusions (92) are clamped with the clamping grooves (34).

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