CN1293210C - High frequency quenching device for uniform speed universal joint - Google Patents
High frequency quenching device for uniform speed universal joint Download PDFInfo
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- CN1293210C CN1293210C CNB021543410A CN02154341A CN1293210C CN 1293210 C CN1293210 C CN 1293210C CN B021543410 A CNB021543410 A CN B021543410A CN 02154341 A CN02154341 A CN 02154341A CN 1293210 C CN1293210 C CN 1293210C
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Abstract
To provide a high-frequency induction hardening device for a constant velocity universal joint whose installation space is small and facility cost is low, and can perform high-frequency hardening of a plurality of kinds of constant velocity joints.The high frequency induction hardening device comprises a first hardening station 10 to harden outer circumferential surfaces of stem shaft portions w11 and w21 of works W1 and W2, an indexing station 20 to index the works W2 and W3, a second hardening station 30 to harden the inner surface of a cup part w12 of the work W1 and groove parts w22 and w32 of the works W2 and W3, a third hardening station 40 to harden the inner circumferential surface of a spline hole w31 of the work W3, a conveying mechanism 50, a high frequency power source 60, a current switching unit 70, a setting and inputting unit 80, and a sequence control unit 90. (C)2004,JPO.
Description
(1) technical field
The present invention relates to a kind of is workpiece with universal joint at the uniform velocity, and carries out the at the uniform velocity universal joint hardening apparatus by high frequency current of high-frequency quenching according to the kind of workpiece.
(2) background technology
The form of having developed manufacturing as the at the uniform velocity universal joint (CVJ:Constant Velocity universalJoints) of uses such as automobile drive element has varied, provides wherein representative a kind of among Fig. 8.With figure wherein the workpiece W1 shown in (A) directly drive tyre wheel, and freely at the uniform velocity universal joint of (rotations) activity up and down.With the workpiece W2 of figure shown in (B) is the at the uniform velocity universal joint that can the axle on the side gear that inserts mixing box slides.With figure (C) though shown in workpiece W3 also be and with figure (B) same kind at the uniform velocity universal joint, belong to matrix.
The part that the internal stress of universal joint is at the uniform velocity concentrated is easily heat-treated, scheme the intensity of this part of increase.Promptly, when workpiece is workpiece W1 shown in Fig. 8 (A), the outside surface of bar axial region w11 and the internal surface of the w12 of cup portion are carried out high-frequency quenching, when workpiece is workpiece W2 shown in Fig. 8 (B), the outside surface of bar axial region w21 and the w22 of ditch portion in the w24 of cup portion are carried out high-frequency quenching, and when workpiece is workpiece W3 shown in Fig. 8 (C), the w32 of ditch portion in splined hole w31 in the head w34 and the w33 of cup portion is carried out high-frequency quenching.
When carrying out the high-frequency quenching of this at the uniform velocity universal joint, use at the uniform velocity universal joint hardening apparatus by high frequency current usually.But, because the pattern of the shape of quenching face and hardened layer and the degree of depth thereof etc. are complete difference with the different of the kind of workpiece and quenching position, so, bar axial region w11, w21, the w22 of ditch portion, w32 and splined hole w31 isolated plant that does not quench to each workpiece is provided respectively, selects for use as required.
Yet, in described example in the past, when at the uniform velocity universal joint quenches,, brought the problem that the space is big, equipment cost is high that is provided with owing to need several isolated plants.In addition, because when carrying out induction heating, the frequency of the high-frequency current of supplying with to heater coil is difference according to the difference at quenching position and to some extent, therefore needs to use many power supplys.And, in order to improve the efficient of thermal treatment process, when successively a plurality of workpiece automatically being transported to each isolated plant, need on different isolated plants, carry out induction heating simultaneously, this just needs jumbo power unit, and this point has also improved equipment cost.
(3) summary of the invention
The purpose of this invention is to provide and a kind ofly not only can carry out high-frequency quenching, and the at the uniform velocity universal joint hardening apparatus by high frequency current that the space is little, equipment cost is low is set the at the uniform velocity universal joint that relates to various ways.
At the uniform velocity universal joint hardening apparatus by high frequency current of the present invention be a kind of be workpiece with universal joint at the uniform velocity, carry out the at the uniform velocity universal joint hardening apparatus by high frequency current of corresponding high-frequency quenching according to the kind of workpiece.Particularly, this device is provided with the 1st quench station that the outside surface to workpiece bar axial region quenches, the 2nd quench station that the ditch portion that forms in the cup portion inner face of workpiece and/or the workpiece is quenched, the 3rd quench station that the splined hole internal surface that forms in the workpiece is quenched, with the carrying mechanism of workpiece handling to each station, it is required that generation is carried out induction heating to workpiece, the high frequency electric source of variable ratio frequency changer high-frequency current, high-frequency current from high frequency electric source output can be switched the current switching portion of output to the heater coil that is disposed at each quench station, set input and carry out the setting input part of kind of the workpiece of high-frequency quenching, and in advance for every kind of workpiece set up carry out the required ordered mode of high-frequency quenching and according to the corresponding ordered mode of kind by setting the workpiece that input part sets to the 1st, the 2nd, the 3rd quench station, carrying mechanism, the sequential control portion that high frequency electric source and current switching portion control.
This structure can be carried out the high-frequency quenching of multiple at the uniform velocity universal joint, therefore with routine different in the past, needn't use several isolated plants, can improve the efficient of thermal treatment process.And, owing to adopt the high frequency electric source of variable frequency to generate workpiece is carried out the required high-frequency current of induction heating, the frequency that can change electric current according to the kind and the quenching position of workpiece, therefore, with routine different in the past, needn't use several power supplys, can dwindle that therefore the space being set, and reduce equipment cost.
It is desirable to, the calibration station of calibration is carried out in configuration to the position of workpiece between the 1st quench station and the 2nd quench station.In this case, sequential control portion can take the structure that basis is controlled each station that comprises the calibration station corresponding to the ordered mode of the workpiece kind of setting by the setting input part.
When adopting this structure, need when the carrying workpiece, the ditch direction of workpiece be consistent, therefore, can further improve the efficient of thermal treatment process.In addition, owing under the certain situation in the ditch portion of workpiece and the gap between the heater coil, carry out induction heating, can guarantee high-quality high-frequency quenching by this point.
It is desirable to, carry in the process that a plurality of workpiece quench successively in ordered mode, to laying respectively at each workpiece of the 1st quench station and the 2nd quench station, each workpiece that perhaps is positioned at the 2nd quench station and the 3rd quench station carries out induction heating with time-sharing format.
When adopting this structure, can on each station, carry out induction heating simultaneously, therefore, can use the little power supply of capacity, can further reduce equipment cost thus workpiece.
It is desirable to, the 1st quench station by with heater coil to the bar axial region of workpiece carry out induction heating the heating part, lay respectively at the both sides, heating part and in order to the 1st, the 2nd cooling end of the bar axial region of cooling heated parts, with workpiece from the heating part to the reciprocator that the 1st, the 2nd cooling end alternately moves, as workpiece is constituted to the processing mechanism that the mechanism that station inlet, heating part, station outlet are moved successively can be carried to the workpiece that lays respectively at station inlet, heating part respectively heating part, station outlet simultaneously.Ordered mode in this case is when control the 1st quench station, make processing mechanism work, workpiece a is carried to the heating part from the station ingress, make heating part work on the one hand, bar axial region to workpiece a carries out induction heating, make processing mechanism carry out reverse action on the other hand to get back to starting position, after the heating of workpiece a finishes, make reciprocator's work, workpiece a is moved to the 1st cooling end from the heating part, make the 1st cooling end work on the one hand, with the bar axial region of cooling workpiece a, make processing mechanism work on the other hand, workpiece b is carried to the heating part from the station inlet, during cooling workpiece a, makes heating part work on the one hand, bar axial region to workpiece b carries out induction heating, makes processing mechanism carry out reverse action to get back to starting position on the other hand.After the heating of the cooling of workpiece a and workpiece b finishes, make reciprocator carry out reverse action, workpiece a is moved to the heating part and workpiece b is moved to the 2nd cooling end from the heating part from the 1st cooling end, make the 2nd cooling end work on the one hand, bar axial region to workpiece b cools off, make processing mechanism work on the other hand, workpiece a is carried to the station exit from the heating part, workpiece c is carried to the heating part from the station ingress, and worked in the heating part, workpiece c is carried out induction heating, after the heating of the cooling of workpiece b and workpiece c finishes, make reciprocator's work, workpiece b is moved to the heating part from the 1st cooling end, workpiece c is moved to the 1st cooling end from the heating part, and repeat described a series for the treatment of processes.In addition, a plurality of workpiece of carrying in order with carrying mechanism begin to be followed successively by a, b, c from the workpiece of transporting at first.
When adopting this structure, cooling behind the induction heating that 2 adjacent workpiece of front and back are carried out and the induction heating before the cooling carry out simultaneously respectively, therefore, the bar axial region that can shorten a plurality of workpiece quenches the required time, further improves the efficient of heat treatment step.
(4) description of drawings
Fig. 1 is the figure of the explanation embodiment of the invention, represents that at the uniform velocity universal joint omits front elevation with the part of hardening apparatus by high frequency current.
Fig. 2 partly omits side elevational view for the 2nd quench station of same device.
Fig. 3 is that the internal portion of same device omits orthographic plan.
Fig. 4 is the front elevation of the carrying mechanism part of same device.
Fig. 5 is the electrical structure diagram of same device.
Fig. 6 is the high frequency electric source of same device and the schematic circuit of current switching portion.
Fig. 7 is the mode chart of overlooking of the action of explanation the 1st quench station processing mechanism of same device and reciprocator.
Fig. 8 is a kind of skiagraph and cup portion cross-sectional view of typical at the uniform velocity universal joint workpiece.
(5) embodiment
Embodiments of the invention are described below with reference to accompanying drawings.At the uniform velocity the universal joint hardening apparatus by high frequency current is to be workpiece W with the at the uniform velocity universal joint that uses as the automobile drive element shown herein, and carries out the device of high-frequency quenching according to the kind of workpiece W.The workpiece W kind that available device quenches has workpiece W1, workpiece W2 and workpiece W3 as shown in Figure 8.
To the 1st quench station 10, calibration station the 20, the 2nd quench station the 30, the 3rd quench station 40 and carrying mechanism 50 shown in Figure 4, high frequency electric source 60 shown in Figure 6 and current switching portion 70 and setting input part 80 as shown in Figure 5 and sequential control portion 90 constitute this device by Fig. 1.1st, the 2nd, the 3rd quench station 10,30,40, calibration station 20, carrying mechanism 50 and current switching portion 70 nearly all are positioned at casing H1, set input part 80 and then are positioned at casing H2.High frequency electric source 60, sequential control portion 90 and water coolant feed unit (omitting among the figure) be arranged on casing H1, H2 near.
Below with reference to Fig. 1 to Fig. 4 and Fig. 7 the physical construction of this device is elaborated.The 1st quench station 10 is workpiece W shown in Fig. 1, Fig. 3 and Fig. 7 when being workpiece W1 or workpiece W2, the device that the outside surface of bar axial region w11 or w21 is quenched.
Use so-called semi-open saddle molded lines circle as heater coil 111 in the present embodiment.Said herein semi-open saddle molded lines circle is made by copper pipe etc., and by the outside surface at bar axial region w11, the pair of straight linear parts that disposes at certain intervals along its length direction and being connected near the two ends of straight line portion and at the outside surface of the bar axial region w11 semicircle shape along its circumferential direction configuration partly constitutes.
In the 1st quench station 10, when making workpiece W rotation, carry out induction heating with heater coil 111, then, when making workpiece W rotation, shower cooling liquid cools off on it.If will represent (referring to Fig. 7) with a, b, c successively from the workpiece of initial carrying by a plurality of workpiece of carrying mechanism 50 carryings, then carry out the cooling of the workpiece a after induction heating finishes and the induction heating of workpiece b simultaneously, then, carry out the cooling of workpiece b and the induction heating of workpiece c simultaneously.
The heating part 11 that the 1st quench station 10 is specifically carried out induction heating by bar axial region w11 that uses 111 couples of workpiece W of heater coil or w21, be disposed at the both sides of heating part 11 respectively and bar axial region w11 or the w21 of the workpiece W behind the induction heating carried out refrigerative the 1st, the 2nd cooling end 12,13, supporting workpiece W moves freely and rotatable worktable 17 (referring to Fig. 7) along left and right directions in Fig. 1, independent decision is placed on the position separately of 2 workpiece W on the worktable 17 and makes the bar centering machine 14 of its rotation, make 2 workpiece W being placed on the worktable 17 with bar centering machine 14 from the heating part 12 to the 1st, the 2nd cooling end 12, the reciprocator 15 that alternately moves between 13, as with workpiece W successively to station inlet a, heating part 11, the processing mechanism that station outlet b moves at the place also can make station inlet a, 2 workpiece W on the heating part 11 move to heating part 11 simultaneously respectively, the processing mechanism 16 at station outlet b place constitutes.The detailed structure of each integral part is as follows.
Heating part 11 is arranged on by the opposite (referring to Fig. 7) of processing mechanism 16 from the workpiece W of station inlet a carrying, it has when carrying out induction heating, heater coil 111 is forwards moved, so that on heating location, locate near workpiece W, when workpiece W is mobile under reciprocator's 15 effects, heater coil 111 is rearward moved, so as on the retreating position that leaves workpiece W localized function.The 10KHz high-frequency current of being exported by high frequency electric source 60 is provided to heater coil 111.
The 1st cooling end 12 is the cooling jackets that are disposed at the left side of heating part 11 in Fig. 1, by its bar axial region w11 or the w21 shower cooling liquid to the workpiece W that passes through reciprocator 15 11 in-migrations from the heating part.The 2nd cooling end 13 is the cooling jackets that are disposed at the right side of heating part 11 in Fig. 1, has and the 1st cooling end 12 identical structure and functions.
There is the end to insert on the bar centering machine 14 and is placed on the bar axial region w11 of 2 workpiece W on the worktable 17 or aperture w13 or the centration axis among the w23 141,142 that w21 upward forms, but centration axis 141,142 independent-liftings.On worktable 17, be provided with the mechanism that makes workpiece W rotation.
Reciprocator 15 is the mechanisms that make bar centering machine 14 move left and right in Fig. 1.It is being determined under the state of positions 2 workpiece W on the worktable 17 by bar centering machine 14, be that move left and right is carried out at the center with the position of heating part 11.
Processing mechanism 16 is clamped workpiece W with each end that slightly is the arm 161 of L shape on the one hand, on the other hand, as shown in Figure 7, arm 161 is rotated alternately with the spacing of 90 degree.
As mentioned above, the object of the high-frequency quenching workpiece W of the 1st quench station 10 is workpiece W1 and workpiece W2, and workpiece W3 does not only quench at this through the 1st quench station 10.That is, when workpiece W3 is carried out high-frequency quenching, 16 partial actions that play carrying mechanism 50 of processing mechanism.
As shown in Figure 1 to Figure 3, the 2nd quench station 30 is when workpiece W is workpiece W1, the inner face of the w12 of cup portion is quenched, and when workpiece is workpiece W2, workpiece W3, the device that the w22 of ditch portion, w32 are quenched.
In the present embodiment, when workpiece W is workpiece W1, use multiturn coil as heater coil 31.Said herein multiturn coil is to be made by copper pipe etc., is wound into spirrillum and can packs the interior coil of glass w12 of portion into along the inwall of the cup w12 of portion.On the other hand, when workpiece W was workpiece W2 or workpiece W3, the coil of said structure was as heater coil 32 below using.Described coil is made by copper pipe etc., it has along the w22 of ditch portion or 32 crooked and 3 coiler parts that dispose with 120 spacings of spending each other, and vertically connect respectively at the two ends of 3 coiler parts, total length is than w24 of cup portion or the 33 longer conductor part of workpiece W, 3 w22 of ditch portion that 3 coiler parts can pack that interval in accordance with regulations opens into or 32.
In the 2nd quench station 30, when workpiece W is workpiece W1, cool off its outside surface by shower cooling liquid on the limit, inner face with the w12 of 31 pairs of cup portions of heater coil when the limit makes workpiece W rotation carries out induction heating, then, the limit makes workpiece W rotation, and cool off to the inner face shower cooling liquid of the w12 of cup portion on the limit.On the other hand, when workpiece W was workpiece W2 or workpiece W3, cooled off its outside surface by shower cooling liquid on the limit, and heating is moved with the w22 of ditch portion or 32 of 32 couples of workpiece W of heater coil in the limit, meanwhile, the hot spots shower cooling liquid to the w22 of ditch portion or 32 moves cooling.
The 2nd quench station 30 is specifically carried out the heater coil 31 of induction heating by the inner face to the w12 of cup portion of workpiece W, the heater coil 32 that the w22 of ditch portion or 32 of workpiece W is heated, be installed on the heater coil 31 and to the cooling jacket 33 of the inner face shower cooling liquid of the w12 of cup portion of workpiece W, be installed on the heater coil 32 and to the cooling jacket 34 of the hot spots shower cooling liquid of the w22 of ditch portion of workpiece W or 32, the worktable 35 that supporting workpiece W can rotate freely, be installed in the ring-type cooling jacket 36 of the outside surface shower cooling liquid of the workpiece W on the worktable 35 and on worktable 35, be configured in the below of worktable 35, and can any one unitary quenching unit erecting bed 37 in the 1st quenching unit (heater coil 31 and cooling jacket 33) and the 2nd quenching unit (heater coil 32 and the cooling jacket 34) be installed in the mode of easy installation and removal, be configured in the top of worktable 35, and can in the position of the workpiece W on the decision worktable 35, make the cup centering machine 38 of Workpiece Rotating, make lifting unit 39 formations such as grade of worktable 35 liftings.
Supply with 10KHz, the 50KHz high-frequency current of exporting by high frequency electric source 60 to heater coil 31,32.Middle body at worktable 35 is provided with opening, so that will be installed in described the 1st quenching unit or the unitary most of w12 of cup portion, 33 or 33 that inserts workpiece W of the 2nd quenching on the quenching unit erecting bed 37.The end of cup centering machine 38 has the centration axis 381 that can join with the fore-end of workpiece W on the worktable 35, centration axis 381 liftables.When lifting unit 39 quenches at the inner face to the w12 of cup portion of workpiece W1, make worktable 35 keep the certain height position, described the 1st quenching unit is inserted the w12 of cup portion of workpiece W1, and when the w22 of ditch portion or 32 of workpiece W2, workpiece W3 quenched, worktable 35 is moved down with certain speed, the 1st quenching unit, the described outside is slowly inserted among the w24 of cup portion or 33 of workpiece W1, workpiece W3.In addition, on quenching unit erecting bed 37, during installation or removal, use lifting unit 39 that worktable 35 is upwards kept out of the way Unit the 1/ 2nd.(referring to Fig. 2)
As shown in Figure 1 to Figure 3, calibration station 20 is arranged between the 1st quench station 10 and the 2nd quench station 30, and when workpiece W is workpiece W2 or workpiece W3, its direction is carried out the device of calibration.
The reason that calibration station 20 is set is under the state on the worktable 35 that workpiece W is placed on the 2nd quench station 30, make its w22 of ditch portion or 32 and the described coil portion position of heater coil 32 match, make between the w22 of ditch portion or 32 of the coil portion of heater coil 32 and workpiece W to keep certain clearance.
Cup centering machine 23 has the end embedding and is placed on the centration axis 231 of the workpiece W fore-end on the worktable 21, and makes centration axis 231 rotate lifting freely.
Index unit 22 has w24 of cup portion or the 33 interior roller bearings 221 that insert workpiece W by the opening that is located at worktable 21 central parts.Roller bearing 221 has the bar portion 2211 that is connected with cylinder or pulse motor etc., and the w22 of ditch portion of workpiece W or 32 big roller bearing portion 2212 are installed and can be inserted with allowing some leeway to oriented radial direction in the end of bar portion 2211.
Index unit 22 usefulness transmitters carry out optical detection to the w22 of ditch portion that is placed on the workpiece W on the worktable 21 or 32 direction.According to detected result, make the pulse motor and the cylinder operation that are connected with roller bearing 221, in the time of lifting roller bearing 221, it is rotated slightly, so that the angle of rotation of its roller bearing portion 2212 is adjusted.
That is, go out to be placed on the direction of the workpiece W on the worktable 21, move described pulse motor, adjust the direction of roller bearing portion 2212, with allowing some leeway so that make roller bearing portion 2212 can insert the w22 of ditch portion or 32 of workpiece W with described sensor detecting.In this state, make described cylinder operation, thereby roller bearing 221 is risen.So roller bearing portion 2212 can insert the w22 of ditch portion or 32 of workpiece W under the situation of contact workpiece W not.Then, make described pulse motor carry out fine action, slowly change the direction of roller bearing portion 2212.Because roller bearing portion 2212 contacts with the w22 of ditch portion of workpiece W or 32 wall, when the direction of roller bearing portion 2212 changed, the direction of workpiece W also was adjusted.If the direction of the workpiece W that described sensor detecting goes out reaches predefined assigned direction, then stop the fine action of described pulse motor, thereby the direction that is placed on the workpiece W on the worktable 21 is carried out calibration.
As shown in figures 1 and 3, the 3rd quench station 40 is when workpiece W is workpiece W3, the device that the internal surface of splined hole w31 is quenched.
In the present embodiment, use multiturn coil as heater coil 41.Said herein multiturn coil is to be made by copper pipe etc., is wound into circle along the inner face of splined hole w31, and the coil in the splined hole w31 that can pack into.
Cool off by the outside surface of shower cooling liquid to workpiece W on the 3rd quench station 40 limits, the limit makes workpiece W rotation time, carries out induction heating with the inner face of 41 couples of splined hole w31 of heater coil, then, the limit makes workpiece W rotation, and cool off to the inner face shower cooling liquid of splined hole w31 on the limit.
The 3rd quench station 40 is specifically carried out the heater coil 41 of induction heating by the inner face to the splined hole w31 of workpiece W, be installed on the heater coil 41 and to the cooling jacket 42 of the splined hole w31 of workpiece W inner face shower cooling liquid, ring-type cooling jacket 43 to the outside surface shower cooling liquid of workpiece W, but the worktable 44 of place work piece W, the formations such as lifting unit 45 of lifting the 3rd quenching unit (heater coil 41 and cooling jacket 42,43).Provide from the 70KHz high-frequency current of high frequency electric source 60 outputs to heater coil 41.
As shown in Figures 1 to 4, carrying mechanism 50 is devices that workpiece W is carried to the 1st quench station 10, calibration station the 20, the 2nd quench station the 30, the 3rd quench station 40 successively.
As shown in figures 1 and 3, carrying mechanism 50 specifically is carried to the inlet transfer roller 51 of the station inlet a position of the 1st quench station 10 by the workpiece W before will quenching, the outlet transfer roller 53 of workpiece W after being configured in the relative position of inlet transfer roller 51 and taking out of the end of quenching, workpiece W is removed intermediate carrier 52 till near the mid-way g the calibration station 20 that workpiece W is carried out calibration from the station of the 1st quench station 10 outlet b position, as shown in Figure 1, will deliver to the workpiece W of mid-way g successively to the 2nd quench station 30, the 3rd quench station 40, cartridge unit 54 formations such as grade of outlet transfer roller 53 carryings.In Fig. 1 and Fig. 3, omitted the diagram of cartridge unit 54.
By clamping workpiece W with anchor clamps 541a ~ d, with reciprocating mechanism 542a ~ d workpiece W is moved up, with horizontal mobile mechanism 543 workpiece W is moved horizontally to the left in Fig. 4, with reciprocating mechanism 542a ~ d workpiece W is moved downwards, make the open a series of processes of workpiece W realize the described carrying of workpiece W with anchor clamps 541a ~ d.Then, carry out and described antipodal action, make anchor clamps 541a ~ d get back to original position.This carrying stroke is repeated 4 times, make the workpiece W of the g that mediates be carried to outlet transfer roller 53 through calibration station the 20, the 2nd quench station the 30, the 3rd quench station 40 successively.
Below with reference to Fig. 5 and Fig. 6 the electric mechanism of this device is elaborated.As shown in Figure 6, high frequency electric source 60 is to generate the device that workpiece W is carried out the required variable ratio frequency changer high-frequency current of induction heating.Owing to use the inverter power supply of IGBT (Insulated Gate Bipolar Transistor) module, can switch the high-frequency current of output 10,50,70KHz at this from line voltage.
As shown in Figure 6, current switching portion 70 be can with from high frequency electric source 60 output 10,50, the 70KHz high-frequency current switches the switches set of output to the heater coil 111,31 (or 32), 41 of the 1st, the 2nd, the 3rd quench station 10,30,40 configurations.Use big electric current relay1 switch at this.
That is, when the outside surface to the bar axial region w21 of bar axial region w11, the workpiece W2 of workpiece W1 quenched, by high frequency electric source 60 output 10KHz high-frequency currents, switch 71a, 72a were in on-state.So the high-frequency current of 10KHz supplies to heater coil 111 through resonating capacitor C1, C2, the 1st quench station after with transformer Tr1 successively.For making the output impedance minimum of high frequency electric source 60 this moment, each switch 73 whole pattern is in accordance with regulations connected.
When the w24 of the cup portion inner face of outside W2 was quenched, by high frequency electric source 60 output 10KHz high-frequency currents, switch 71a, 72b were in on-state.So the high-frequency current of 10KHz supplies to heater coil 31 (or 32) through resonating capacitor C1, C2, the 2nd quench station after with transformer Tr2 successively.For making the output impedance minimum of high frequency electric source 60 this moment, each switch 73 whole pattern is in accordance with regulations connected.
When the w32 of ditch portion of the w22 of ditch portion, the workpiece W3 of workpiece W2 was quenched, from the high-frequency current of high frequency electric source 60 output 50KHz, switch 71b, 72c were in on-state.So the high-frequency current of 50KHz supplies to heater coil 32 through resonating capacitor C3, the 2nd quench station with transformer Tr2 successively.
When the internal surface of the splined hole 31 of workpiece W3 was quenched, from the high-frequency current of high frequency electric source 60 output 70KHz, switch 71c was in on-state.So the high-frequency current of 70KHz supplies to heater coil 41 through resonating capacitor C4, the 3rd quench station with transformer Tr3 successively.
As shown in Figure 5, setting input part 80 is input switches of setting the kind of importing the workpiece W that carries out high-frequency quenching.That is, set the kind that the workpiece W that carries out high-frequency quenching in this device is moved in input, this is imported data output to sequential control portion 90 with the form of electrical signal by setting input part 80.
As shown in Figure 5, sequential control portion 90 carries out the required ordered mode of high-frequency quenching for every kind of workpiece W sets up, and according to the device of the 1st, the 2nd, the 3rd quench station 10,30,40, calibration station 20, carrying mechanism 50, high frequency electric source 60 and current switching portion 70 being controlled corresponding to the ordered mode of the workpiece W kind of setting by setting input part 80.Use sequencer at this, in advance in the sequential programme of record contain described ordered mode in depositing within it.
In the 1st, the 2nd, the 3rd quench station 10,30,40, calibration station 20, carrying mechanism 50, be provided with the transmitter that the carrying position of the working condition of each device and workpiece W is detected.Though in Fig. 5 it is omitted, the detection signal of these transmitters also is imported in the sequential control portion 90, that is, in the working condition of each device of monitoring and the carrying position of workpiece W, each step is all undertaken by described ordered mode all the time in sequential control portion 90.
The following describes the working condition of this device, and the content that is based upon the ordered mode in the sequential control portion 90 is in advance described with described structure.
By setting input part 80 workpiece W1 is set at the kind time-like that carries out high-frequency quenching, sequential control portion 90 handles successively workpiece W1 is carried out the required ordered mode of high-frequency quenching, and carries out following work.In addition, described the 1st quenching unit is installed on the quenching cell operation platform 37 of the 2nd quench station 30, and, in advance the height of worktable 35 is adjusted with lifting unit 39 for the outside is exposed with the opening part of unitary major part from worktable 35.
When connecting the power switch of this device, inlet transfer roller 51 and outlet transfer roller 53 promptly are in working order all the time.In this state, as shown in Figure 1, when on inlet transfer roller 51, loading a plurality of workpiece W1, workpiece W1 is carried to successively the station inlet a place of the 1st quench station 10 by inlet transfer roller 51.If workpiece W1 arrives station inlet a, the 1st quench station 10 is promptly started working.The ordered mode of this moment thes contents are as follows.
At first, make processing mechanism 16 work.That is, as shown in Figure 7, (workpiece a), after arm 161 being revolved turn 90 degrees, decontrol workpiece a with an end holding workpiece W1 of arm 161.So workpiece a just is carried to heating part 11 from station inlet a.When workpiece a is transported to heating part 11, make 14 work of bar centering machine, centration axis 141 descends with the position of determining workpiece a and makes its rotation.If arm 161 is decontroled workpiece a, make processing mechanism 16 carry out reverse action immediately, so that make arm 161 get back to starting position.
If under the state of determining workpiece a position by bar axial region 141, make its rotation, then heating part 11 work.That is, heater coil 111 moves near workpiece a, makes high frequency electric source 60 and 70 work of current switching portion, so that supply with the high-frequency current of 10KHz to heater coil 111 under this state.So the high-frequency current of 10KHz flows into heater coil 111.The heating beginning after the specified time, stops high frequency electric source 60.Its result, the outside surface of the bar axial region w11 by 111 couples of workpiece a of heater coil carries out uniform induction heating.
After the heating of workpiece a finished, mobile heater coil 111 away from workpiece a, at this moment, made reciprocator's 15 work, and workpiece a 11 is moved to the 1st cooling end 12 from the heating part.The mobile of workpiece a is to carry out under the state of determining its position by centration axis 141 and having rotated.When workpiece a moves on to the 1st cooling end 12, make 12 work of the 1st cooling end, cool off to the bar axial region w11 of workpiece a shower cooling liquid.Begin through behind the specific time from cooling, when stopping the 1st cooling end 12, also stop the rotation of centration axis 141.Finish quenching uniformly comprehensively thus to the bar axial region w11 outside surface of workpiece a.
On the other hand, 11 when moving on to the 1st cooling end 12, make processing mechanism 16 work from the heating part as workpiece a.That is,, after arm 161 being revolved turn 90 degrees, decontrol workpiece b with an end holding workpiece b of arm 161.So workpiece b just is carried to heating part 11 from station inlet a.When workpiece b is transported to heating part 11, make 14 work of bar centering machine, centration axis 142 descends with the position of determining workpiece b and makes its rotation.So, during workpiece a carries out refrigerative, making heating part 11 work, the situation when handling workpiece a is identical, and the outside surface of workpiece b bar axial region w11 is carried out induction heating.If arm 161 is decontroled workpiece b, make processing mechanism 16 carry out reverse action immediately, so that make arm 161 get back to starting position.
After the heating of the cooling of workpiece a and workpiece b finishes, make reciprocator 15 carry out reverse action, workpiece a is moved to heating part 11 from the 1st cooling end 12, simultaneously, workpiece b 11 is moved to the 2nd cooling end 13 from the heating part.The mobile of workpiece b is to carry out under the state of determining the position by centration axis 142 and having rotated.
When workpiece b 11 when moving on to the 2nd cooling end 13, makes 13 work of the 2nd cooling end from the heating part, cool off to the bar axial region w11 of workpiece b shower cooling liquid.Begin through behind the specific time from cooling, when stopping the 2nd cooling end 13, also stop the rotation of centration axis 142.Finish quenching uniformly comprehensively thus to the bar axial region w11 outside surface of workpiece b.
On the other hand, when workpiece a when the 1st cooling end 12 moves to heating part 11, centration axis 141 is risen, and makes processing mechanism 16 work.That is, workpiece a is decontroled from centration axis 141, with an end holding workpiece c of arm 161, and with the other end holding workpiece a, and after arm 161 being revolved turn 90 degrees, decontrol workpiece a, c respectively.So, workpiece a 11 when being carried to station outlet b, is carried to heating part 11 with workpiece c from station inlet a from the heating part.After arm 161 is decontroled workpiece a, c, make arm 161 retrograde rotations 180 degree, get back to starting position.
When workpiece c is carried to heating part 11, situation during with processing workpiece a is identical, make bar centering machine 14, processing mechanism 16 and heating part 11 work, during workpiece b was carried out refrigerative, the outside surface by heating part 11 couples of workpiece c bar axial region w11 carried out induction heating.After the heating of the cooling of workpiece b and workpiece c finishes, make reciprocator's 15 work, with workpiece b when the 1st cooling end 13 moves on to heating part 11, workpiece c 11 is moved on to the 1st cooling end 12 from the heating part.
After this, carry out described a series of processing repeatedly.Comprise that the ordered mode of every content is handled one by one by sequential control portion 90 as mentioned above.Thus, at 10 couples of workpiece a, b, c that move into successively from station inlet a of the 1st quench station ... the outside surface of each bar axial region w11 quench successively, and take out of to station outlet b successively.
Finish the quenching of bar axial region w11 of workpiece W1 in the 1st quench station 10 after, when workpiece W1 is carried to station outlet b, make intermediate carrier 52 carry out the work of specified time.So workpiece W1 is carried to mid-way g from station outlet b.After workpiece W1 is transported to mid-way g, make cartridge unit 54 work, finish the carrying stroke altogether 2 times.So, make the worktable 21 of the workpiece W1 at g place, mid-way through calibration station 20, be carried on the worktable 35 of the 2nd quench station 30.In this process, calibration station 20 does not carry out work, and workpiece W1 does not only stop through calibration station 20.
After workpiece W1 being transported on the worktable 35 of the 2nd quench station 30, make 30 work of the 2nd quench station.Particularly, make 38 work such as grade of glass centering machine, centration axis 381 descends, with the position of decision workpiece W1 and make it rotation.The workpiece W1 of this moment is positioned at the center of the ring-type cooling jacket 36 on the worktable 35, inserts described Unit the 1st among the w12 of its glass portion, that is, and and heater coil 31 and cooling jacket 33.
As mentioned above, be under the state that has also rotated by centration axis 381 definite its positions at workpiece W1, make heater coil 31 carry out the work of specified time, promptly, make high frequency electric source 60 and 70 work of current switching portion, so that under this state, supply with the high-frequency current of 10KHz to heater coil 31.So the high-frequency current of 10KHz flows into heater coil 31.When making heater coil 31 work, make cooling jacket 36 work, cool off to the outside surface shower cooling liquid of workpiece W1.Its result under the outside surface refrigerative state of workpiece W1, carries out uniform induction heating to the inner face of the w12 of cup portion.
If the heating end to the w12 of the cup portion inner face of workpiece W1 just makes cooling jacket 33 carry out the work of specified time.During this period, because cooling jacket 36 is also in work, therefore, under the state of cooling, also the inner face shower cooling liquid to the w12 of cup portion cools off in the outer surface of workpiece W1.The 33 out-of-work whiles of cooling jacket, cooling jacket 36 also stops.Its result finishes the uniform hardening to the w12 of the cup portion inner face of workpiece W1.
Behind the end-of-job of the 2nd quench station 30, that is, finish the quenching of the w12 of cup portion of workpiece W1 after, make cartridge unit 54 work, finish the carrying stroke altogether 2 times.So, make workpiece W1 on the worktable 35 of the 2nd quench station 30 through the worktable 44 of the 3rd quench station 40, be carried to outlet transfer roller 53.In this process, the 3rd quench station 40 is not carried out work, and workpiece W1 does not only stop through the 3rd quench station 40.
The workpiece W1 that has finished when quench treatment because outlet transfer roller 53 is in working order all the time, takes out of workpiece W1 by outlet transfer roller 53 when the worktable 35 of the 2nd quench station 30 is moved to outlet transfer roller 53.
Handle one by one by sequential control portion 90 and to comprise the result of the ordered mode of every content as mentioned above, can quench successively to a plurality of workpiece W1 by the 1st, the 2nd quench station 10,30.Yet, a plurality of workpiece W1 are carried and the process of progressive hardening in, induction heating that carries out on the 1st quench station 10 and the induction heating that carries out in the 2nd quench station 30 carry out with time-sharing format.Its particular case is as follows.
When the 1st quench station 10 is carried out induction heating,, need to connect switch 71a, 72a etc. from the high-frequency current of high frequency electric source 60 output 10KHz.On the other hand, when the 2nd quench station 30 is carried out induction heating,, need to connect switch 71a, 72b etc. from the high-frequency current of high frequency electric source 60 output 10KHz.For 2 such processing are not carried out at the same time,, the induction heating timesharing of carrying out on two stations is carried out by adjusting the measures such as handling time of workpiece W1.
Secondly, by setting input part 80 workpiece W2 is set at the kind time-like that carries out high-frequency quenching, sequential control portion 90 handles successively workpiece W2 is carried out the required ordered mode of high-frequency quenching, and carries out following work.In addition, described the 2nd quenching unit is installed on the quenching unit of the 2nd quench station 30 platform 37, and is inboardly exposed, in advance the height of worktable 35 is adjusted with lifting unit 39 with the opening part of unit from worktable 35 for preventing.
When connecting the power switch of this device, inlet transfer roller 51 and outlet transfer roller 53 promptly are in working order all the time.In this state, as shown in Figure 1, put when on inlet transfer roller 51, loading a plurality of workpiece W2, workpiece W2 is carried to successively the station inlet a place of the 1st quench station 10 by inlet transfer roller 51.If workpiece W2 arrives station inlet a, the 1st quench station 10 is promptly started working.At this moment, the content of ordered mode is identical when handling described workpiece W1.
Finish the quenching of bar axial region w21 of workpiece W2 in the 1st quench station 10 after, when workpiece W2 is carried to station outlet b, make intermediate carrier 52 carry out the work of specified time.So workpiece W2 is carried to mid-way g from station outlet b.After workpiece W2 is transported to mid-way g, make cartridge unit 54 work, finish the carrying stroke 1 time.So, the workpiece W2 at g place, mid-way is carried on the worktable 21 of calibration station 20.
After workpiece W2 is transported to worktable 21, make 20 work of calibration station.That is, make 23 work of glass centering machine, centration axis 231 descends, to determine the position of inboard W2.Then, make index unit 22 work, the direction of the workpiece W2 on the worktable 21 carried out calibration with described method, finish this work after, make glass centering machine 23 carry out reverse action, thereby make centration axis 231 risings.
The work one of calibration station 20 finishes, and just makes cartridge unit 54 work, finishes the carrying stroke 1 time.So the workpiece W2 on the worktable 21 is carried on the worktable 35 of the 2nd quench station 30 under the situation that keeps original direction.
After workpiece W2 being carried on the worktable 35 of the 2nd quench station 30, make 30 work of the 2nd quench station.Particularly, make 38 work of glass centering machine, centration axis 381 descends, to determine the position of workpiece W2.At this moment, workpiece W2 is positioned at the center of the ring-type cooling jacket 36 on the worktable 35, and the direction of the w22 of its ditch portion conforms to the position of the coil portion of heater coil 32.
Under the state of having been determined by centration axis 381 in the position of workpiece W2, make heater coil 31, lifting unit 35 and cooling jacket 33,36 carry out the work of specified time.
That is,,, make high frequency electric source 60 and 70 work of current switching portion for high-frequency current to heater coil 31 supply 50KHz for heater coil 31, so, the high-frequency current of inflow 50KHz in the heater coil 31.For lifting unit 35, worktable 35 is descended with certain speed, thereby each coil portion that makes heater coil 31 afterwards, move from the w22 of ditch portion that inserts workpiece W2 down to the inside of the w22 of ditch portion with certain speed.In this process, the w22 of ditch portion of workpiece W2 moves heating by heater coil 31.Cooling jacket 36 is to the outside surface shower cooling liquid of workpiece W2, thereby makes whole outside surfaces coolings of workpiece W2.33 hot spots shower cooling liquid of cooling jacket to the w22 of ditch portion of workpiece W2, and, because it is mobile simultaneously with heater coil 31, so the hot spots of the w22 of ditch portion of workpiece W2 is moved cooling.
By the described work of heater coil 31, lifting unit 35 and cooling jacket 33,36, whole ditch w22 of portion of workpiece W2 are carried out in the longitudinal direction quench treatment uniformly.Quench after the end, make glass centering machine 38 carry out reverse action, centration axis 381 rises, thereby avoids workpiece W2.
Behind the end-of-job of the 2nd quench station 30, make cartridge unit 54 work, finish the carrying stroke altogether 2 times.So the workpiece W2 on the worktable 35 of the 2nd quench station 30 is carried to outlet transfer roller 53 through the worktable 44 of the 3rd quench station 40.In this process, the 3rd quench station 40 is not worked, and workpiece W2 does not only stop through the 3rd quench station 40.
The workpiece W2 that has finished when quench treatment because outlet transfer roller 53 is in working order all the time, takes out of workpiece W2 by outlet transfer roller 53 when the worktable 35 of the 2nd quench station 30 is moved to outlet transfer roller 53.
Handle one by one by sequential control portion 90 and to comprise the result of the ordered mode of every content as mentioned above, can quench successively to a plurality of workpiece W2 by the 1st, the 2nd quench station 10,30.Yet, a plurality of workpiece W2 are carried and the process of progressive hardening in, carry out with time-sharing format during at the induction heating that carries out on the 1st quench station 10 with at the induction heating that the 2nd quench station 30 is carried out.Its particular case is as follows.
When the 1st quench station 10 is carried out induction heating,, need to connect switch 71a, 72a etc. from the high-frequency current of high frequency electric source 60 output 10KHz.On the other hand, when the 2nd quench station 30 is carried out induction heating,, need to connect switch 71b, 72c etc. from the high-frequency current of high frequency electric source 60 output 50KHz.For 2 such processing are not carried out at the same time,, the induction heating timesharing on two stations is carried out by adjusting the measures such as handling time of workpiece W2.
Secondly, by setting input part 80 workpiece W3 is set at the kind time-like that carries out high-frequency quenching, sequential control portion 90 will handle successively workpiece W3 will be carried out the required ordered mode of high-frequency quenching, and carry out following work.In addition, described the 2nd quenching unit (matrix is inboard to be used) is installed on the quenching unit of the 2nd quench station 30 platform 37, and, is adjusted the height of worktable 35 in advance with lifting unit 39 for to prevent that the 2nd quenching unit from exposing from the opening part of worktable 35.
When connecting the power switch of this device, inlet transfer roller 51 and outlet transfer roller 53 promptly are in working order all the time.In this state, as shown in Figure 1, when on inlet transfer roller 51, loading a plurality of workpiece W3, workpiece W3 is carried to successively the station inlet a place of the 1st quench station 10 by inlet transfer roller 51.
When workpiece W3 arrives station inlet a place, make processing mechanism 16 work of the 1st quench station 10.That is, as shown in Figure 7,, after making arm 161 Rotate 180 degree under this state, decontrol workpiece a with an end holding workpiece W3 of arm 161.So workpiece W3 just is carried to station outlet b from station inlet a.In this process, except that processing mechanism 16, in fact the 1st quench station 10 does not carry out work, and workpiece W3 does not only stop through the 1st quench station 10.
After workpiece W3 is transported to station outlet b, make intermediate carrier 52 carry out the work of specified time.So workpiece W3 is carried to mid-way g from station outlet b.After workpiece W3 is transported to mid-way g, make cartridge unit 54 work, finish the carrying stroke altogether 1 time.So, the workpiece W3 at g place, mid-way is carried on the worktable 21 of calibration station 20.
After workpiece W3 is carried on the worktable 21, make 20 work of calibration station.Identical when its work and processing workpiece W2.The work one of calibration station 20 finishes, and just makes cartridge unit 54 work, finishes the carrying stroke 1 time.So the matrix workpiece W3 on the worktable 21 is carried on the worktable 35 of the 2nd quench station 30 under the situation that keeps original direction.
After workpiece W3 being carried on the worktable 35 of the 2nd quench station 30, make 30 work of the 2nd quench station.Identical when its work and processing workpiece W2.Behind the end-of-job of the 2nd quench station 30, that is, after the quenching of the w32 of ditch portion of workpiece W3 finished, make cartridge unit 54 work, finish the carrying stroke 1 time.So the workpiece W3 on the worktable 35 is carried on the worktable 44 of the 3rd quench station 40.
Workpiece W3 is transported on the worktable 44 of the 3rd quench station 40 from worktable 35 after, make 40 work of the 3rd quench station.Particularly, make lifting unit 45 work, worktable 44 descends.So, the 3rd quenching unit, that is, heater coil 41 and cooling jacket 42,43 descend and are configured on the worktable 44.At this moment, workpiece W3 is positioned at the center of the ring-type cooling jacket 43 on the worktable 44, and heater coil 41 and cooling jacket 42 are inserted among the splined hole w31.
Under the state that heater coil 41 and cooling jacket 42,43 are configured on the worktable 44, make heater coil 41 carry out the work of specified time, that is, make high frequency electric source 60 and 70 work of current switching portion, so that under this state, supply with the high-frequency current of 70KHz to heater coil 41.So the high-frequency current of 70KHz flows into heater coil 41.In addition, when making heater coil 41 work, make cooling jacket 43 work, cool off by the outside surface of shower cooling liquid to workpiece W3.Be implemented in thus under the outside surface refrigerative state of workpiece W3, the internal surface of splined hole w31 is carried out uniform induction heating.
If the heating to the splined hole w31 internal surface of workpiece W3 finishes, just make cooling jacket 42 carry out the work of specified time.During this period, because cooling jacket 43 is also in work, therefore, under the state of cooling, also the internal surface shower cooling liquid to splined hole w31 cools off in the outer surface of workpiece W3.The 42 out-of-work whiles of cooling jacket, cooling jacket 43 also stops.Its result finishes the uniform hardening to the splined hole w31 internal surface of workpiece W3.
Behind the end-of-job of the 3rd quench station 40, that is, after the quenching of end to the splined hole w31 internal surface of workpiece W3, make cartridge unit 54 work, finish the carrying stroke 1 time.So, make the workpiece W3 on the worktable 44 of the 3rd quench station 40 be carried to outlet transfer roller 53.Because outlet transfer roller 53 is in working order all the time, take out of outside W3 by outlet transfer roller 53.
Handle one by one by sequential control portion 90 and to comprise the result of the ordered mode of every content as mentioned above, can quench successively to a plurality of workpiece W3 by the 2nd, the 3rd quench station 30,40.Yet, a plurality of workpiece W3 are carried and the process of progressive hardening in, carry out with time-sharing format during at the induction heating that carries out on the 2nd quench station 30 with at the induction heating that the 3rd quench station 40 is carried out.Its particular case is as follows.
When the 2nd quench station 30 is carried out induction heating,, need to connect switch 71b, 72c etc. from the high-frequency current of high frequency electric source 60 output 50KHz.On the other hand, when the 3rd quench station 40 is carried out induction heating,, need to connect switch 71c etc. from the high-frequency current of high frequency electric source 60 output 70KHz.For 2 such processing are not carried out at the same time,, the induction heating timesharing on two stations is carried out by adjusting the measures such as handling time of workpiece W3.
Use have described structure at the uniform velocity universal joint is used hardening apparatus by high frequency current the time, can all quench to W1, W2, three kinds of workpiece W of W3, and need not use many isolated plants.On the 1st quench station 10, simultaneously 2 workpiece in front and back of carrying are successively carried out induction heating before cooling and the cooling behind the induction heating respectively.Owing to be provided with calibration station 20, when workpiece W is moved into same device, do not need to make the w22 of ditch portion of workpiece W2, workpiece W3, the direction unanimity of w32.Can improve the efficient of heat treatment step thus.
In addition, not only can quench, and, only need to use the power unit of 1 low capacity to get final product because the induction heating on each station is that timesharing is carried out by 60 couples of 3 kinds of workpiece W of 1 high frequency electric source.In the 2nd quench station 30, all can quench to the w12 of cup portion of workpiece W1 and the w22 of ditch portion, the w32 of workpiece W2, workpiece W3 again.Thus, compare, not only realize miniaturization, and can reduce the cost of equipment significantly with device in the past.
In addition, at the uniform velocity universal joint of the present invention is not limited only to described embodiment with hardening apparatus by high frequency current, for example, can carry out suitable design alteration to the configuration sequence of the kind of the quenching method of the workpiece that carries out at each station and heater coil, cooling jacket, each station, method for carrying etc.In addition, on the 2nd sudden firer position, also can separately carry out to the quenching of the w12 of cup portion of workpiece W1 with to the w22 of ditch portion of workpiece W2, workpiece W3, the quenching of w32, perhaps by the 1st, the 2nd quench station is installed on quenching unit erecting bed 37, make quenching erecting bed 37 move the full-automation that freely mode realizes equipment.
Claims (5)
1. one kind is workpiece with universal joint at the uniform velocity, carry out the at the uniform velocity universal joint hardening apparatus by high frequency current of corresponding high-frequency quenching according to the kind of workpiece, it is characterized in that: it is provided with the 1st quench station that the outside surface to workpiece bar axial region quenches, the 2nd quench station that the ditch portion that forms in the cup portion inner face of workpiece and/or the workpiece is quenched, the 3rd quench station that the splined hole internal surface that forms in the workpiece is quenched, with the carrying mechanism of workpiece handling to each station, it is required that generation is carried out induction heating to workpiece, the high frequency electric source of variable ratio frequency changer high-frequency current, high-frequency current from high frequency electric source output can be switched the current switching portion of output to the heater coil that is disposed at each quench station, set input and carry out the setting input part of the workpiece kind of high-frequency quenching, and in advance for every kind of workpiece set up carry out the required ordered mode of high-frequency quenching and according to the corresponding ordered mode of kind by setting the workpiece that input part sets to the 1st, the 2nd, the 3rd quench station, carrying mechanism, the sequential control portion that high frequency electric source and current switching portion control.
2. the described at the uniform velocity universal joint of claim 1 hardening apparatus by high frequency current, it is characterized in that: dispose the calibration station that workpiece is carried out calibration between the 1st quench station and the 2nd quench station, sequential control portion is according to corresponding to the ordered mode of the workpiece kind of being set by the setting input part each station that comprises the calibration station being controlled.
3. at the uniform velocity universal joint hardening apparatus by high frequency current according to claim 1 and 2, it is characterized in that: described ordered mode is in the process that a plurality of workpiece of carrying quench successively, to laying respectively at each workpiece of the 1st quench station and the 2nd quench station, each workpiece that perhaps is positioned at the 2nd quench station and the 3rd quench station carries out induction heating with time-sharing format.
4. at the uniform velocity universal joint hardening apparatus by high frequency current according to claim 1 and 2, it is characterized in that: the 1st quench station is by the heating part of the bar axial region of workpiece being carried out induction heating with heater coil, lay respectively at the both sides, heating part and be used for cooling off heated parts the bar axial region the 1st, the 2nd cooling end, with workpiece from the heating part to the 1st, the reciprocator that the 2nd cooling end alternately moves, as workpiece is entered the mouth to station successively, the heating part, the mechanism that the station outlet is moved can will lay respectively at the station inlet, the workpiece of heating part is carried to the heating part simultaneously respectively, the formations such as processing mechanism of station outlet, a plurality of workpiece of carrying in order with carrying mechanism begin to be followed successively by a from the workpiece of transporting at first, b, during c, described ordered mode is when control the 1st quench station, make processing mechanism work, workpiece a is carried to the heating part from the station ingress, make heating part work on the one hand, bar axial region to workpiece a carries out induction heating, make processing mechanism carry out reverse action on the other hand to get back to starting position, after the heating of workpiece a finishes, make reciprocator's work, workpiece a is moved to the 1st cooling end from the heating part, make the 1st cooling end work on the one hand, bar axial region with cooling workpiece a, make processing mechanism work on the other hand, workpiece b is carried to the heating part from the station inlet, during cooling workpiece a, make heating part work on the one hand, bar axial region to workpiece b carries out induction heating, make processing mechanism carry out reverse action on the other hand to get back to starting position, after the heating of the cooling of workpiece a and workpiece b finishes, make reciprocator carry out reverse action, workpiece a is moved to the heating part and workpiece b is moved to the 2nd cooling end from the heating part from the 1st cooling end, make the 2nd cooling end work on the one hand, bar axial region to workpiece b cools off, make processing mechanism work on the other hand, workpiece a is carried to the station exit from the heating part, workpiece c is carried to the heating part from the station ingress, and worked in the heating part, workpiece c is carried out induction heating, after the heating of the cooling of workpiece b and workpiece c finishes, make reciprocator's work, workpiece b is moved to the heating part from the 1st cooling end, workpiece c is moved to the 1st cooling end from the heating part, and repeat described a series for the treatment of processes.
5. at the uniform velocity universal joint hardening apparatus by high frequency current according to claim 3, it is characterized in that: the 1st quench station is by the heating part of the bar axial region of workpiece being carried out induction heating with heater coil, lay respectively at the both sides, heating part and be used for cooling off heated parts the bar axial region the 1st, the 2nd cooling end, with workpiece from the heating part to the 1st, the reciprocator that the 2nd cooling end alternately moves, as workpiece is entered the mouth to station successively, the heating part, the mechanism that the station outlet is moved can will lay respectively at the station inlet, the workpiece of heating part is carried to the heating part simultaneously respectively, the formations such as processing mechanism of station outlet, a plurality of workpiece of carrying in order with carrying mechanism begin to be followed successively by a from the workpiece of transporting at first, b, during c, described ordered mode is when control the 1st quench station, make processing mechanism work, workpiece a is carried to the heating part from the station ingress, make heating part work on the one hand, bar axial region to workpiece a carries out induction heating, make processing mechanism carry out reverse action on the other hand to get back to starting position, after the heating of workpiece a finishes, make reciprocator's work, workpiece a is moved to the 1st cooling end from the heating part, make the 1st cooling end work on the one hand, bar axial region with cooling workpiece a, make processing mechanism work on the other hand, workpiece b is carried to the heating part from the station inlet, during cooling workpiece a, make heating part work on the one hand, bar axial region to workpiece b carries out induction heating, make processing mechanism carry out reverse action on the other hand to get back to starting position, after the heating of the cooling of workpiece a and workpiece b finishes, make reciprocator carry out reverse action, workpiece a is moved to the heating part and workpiece b is moved to the 2nd cooling end from the heating part from the 1st cooling end, make the 2nd cooling end work on the one hand, bar axial region to workpiece b cools off, make processing mechanism work on the other hand, workpiece a is carried to the station exit from the heating part, workpiece c is carried to the heating part from the station ingress, and worked in the heating part, workpiece c is carried out induction heating, after the heating of the cooling of workpiece b and workpiece c finishes, make reciprocator's work, workpiece b is moved to the heating part from the 1st cooling end, workpiece c is moved to the 1st cooling end from the heating part, and repeat described a series for the treatment of processes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002337203 | 2002-11-20 | ||
| JP2002337203A JP4220763B2 (en) | 2002-11-20 | 2002-11-20 | Induction hardening equipment for constant velocity joints |
Publications (2)
| Publication Number | Publication Date |
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| CN1502706A CN1502706A (en) | 2004-06-09 |
| CN1293210C true CN1293210C (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021543410A Expired - Lifetime CN1293210C (en) | 2002-11-20 | 2002-11-27 | High frequency quenching device for uniform speed universal joint |
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|---|---|
| JP (1) | JP4220763B2 (en) |
| CN (1) | CN1293210C (en) |
| HK (1) | HK1066572A1 (en) |
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| JP6832812B2 (en) * | 2017-08-28 | 2021-02-24 | Ntn株式会社 | High frequency heat treatment equipment |
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| JP2000303119A (en) * | 1999-04-16 | 2000-10-31 | Fuji Electronics Industry Co Ltd | Induction hardening apparatus and induction hardening method |
| JP3455152B2 (en) * | 2000-02-10 | 2003-10-14 | 富士電子工業株式会社 | Induction hardening equipment |
| JP3966494B2 (en) * | 2000-03-28 | 2007-08-29 | 高周波熱錬株式会社 | Tempering method |
| JP3956619B2 (en) * | 2000-07-31 | 2007-08-08 | 日本精工株式会社 | Wheel drive unit and its assembly method |
-
2002
- 2002-11-20 JP JP2002337203A patent/JP4220763B2/en not_active Expired - Lifetime
- 2002-11-27 CN CNB021543410A patent/CN1293210C/en not_active Expired - Lifetime
-
2004
- 2004-11-29 HK HK04109386A patent/HK1066572A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH059584A (en) * | 1991-06-28 | 1993-01-19 | Ntn Corp | Heat treatment of outer ring of uniform-speed universal joint |
| DE4339204C1 (en) * | 1993-11-17 | 1994-07-28 | Daimler Benz Ag | Induction hardening process and equipment for universal joint crosspieces of carbon steel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004169133A (en) | 2004-06-17 |
| JP4220763B2 (en) | 2009-02-04 |
| CN1502706A (en) | 2004-06-09 |
| HK1066572A1 (en) | 2005-03-24 |
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