CN103014293B - Straight round pipe positioning device and straight round pipe induction quenching equipment - Google Patents
Straight round pipe positioning device and straight round pipe induction quenching equipment Download PDFInfo
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- CN103014293B CN103014293B CN201210559061.2A CN201210559061A CN103014293B CN 103014293 B CN103014293 B CN 103014293B CN 201210559061 A CN201210559061 A CN 201210559061A CN 103014293 B CN103014293 B CN 103014293B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Straight pipe fitting positioner, including the positioner body that is equipped with first positioning mechanism, second positioning mechanism and third positioning mechanism, the respective setting element of first positioning mechanism, second positioning mechanism and third positioning mechanism distributes along the same circumferencial direction of arranging the circumference, and can follow this and arrange the radial inner peripheral surface or the outer peripheral face contact with straight pipe fitting (7) simultaneously of circumference, and each setting element can slide and/or roll when straight pipe fitting and straight pipe fitting positioner relative motion. In addition, the invention also provides the induction quenching equipment for the straight round pipe fitting, which is provided with the positioning device for the straight round pipe fitting. The positioning device for the straight round pipe fitting can optimally enable the circumferential clearance between the pipe wall of the straight round pipe fitting and the quenching inductor to be uniform and equidistant as much as possible, so that the induced magnetic field intensity in the pipe wall can be uniformly distributed along the circumferential direction, a formed quenching layer is uniform relatively and effectively, and the quenching quality is remarkably improved.
Description
Technical field
The present invention relates to a kind of straight pipe part auxiliary processing device, particularly, relate to a kind of straight circle pipe fitting positioning device.In addition, the invention still further relates to a kind of straight pipe part induction hardening equipment being provided with described straight round pipe fitting positioning device.
Background technology
The various field of straight pipe part widespread use, according to application needs, under numerous situation, require that straight pipe part has good wear resistance and certain toughness, such as the concrete delivery pipe of delivering concrete, for carrying the transfer lime etc. of dust, therefore these straight pipe parts need to carry out certain thermal treatment.
Such as, universal at present due to the mechanized construction such as urban construction, road and bridge, becomes concrete conveying equipment important in mechanized construction already for the towed concrete pump of concrete conveyance and truck mounted concrete pump.In concrete conveying equipment, an important building block is concrete delivery pipe.Concrete delivery pipe operationally inwall directly contacts with concrete, and body needs concrete shock or the impact of bearing conveying at a high speed, thus require that there is higher inwall wear resistance and certain body toughness, in actual use, concrete delivery pipe belongs to the consumable accessory of concrete conveying equipment, consumption is more, and it is closely related that this cannot obtain Reliable guarantee with the processing quality of concrete delivery pipe to a certain extent.Present concrete delivery pipe is mainly divided into two kinds, i.e. one-course concrete transfer lime and double layer concrete transport pipe, and these two kinds of concrete delivery pipes all need to have good wear resistance and toughness by heat treatment concurrently to make it.No matter be mono-layer tube or double wall tube, involved heat treatment mainly exists two kinds, i.e. overall heat hot process and induction heating thermal treatment, wherein, overall heat hot process easily makes straight pipe part bulk material properties change, be unfavorable for taking into account of straight pipe part wear resistance and toughness, thus induction heating thermal treatment above-mentioned to have with concrete delivery pipe during straight pipe part that identical or similar performance requires is processed very generally adopt.
In the induction heating thermal treatment of straight pipe part, the heat that induction quenching mainly utilizes induced current to be produced by material or workpiece, and make material or workpiece surface and local heating, and the quenching method of cooling fast, it can make concrete delivery pipe have wear resistance good inwall quench-hardened case and without the heat treated outer section with better toughness, concrete delivery pipe thus can be made to have good wear resistance and toughness concurrently.But, this is only theoretic, because fabrication process condition can not be ensured reliably in the actual course of processing, the straight pipe part be processed to form can not obtain good wear resistance and toughness, and this is also such as above-mentioned concrete delivery pipe extremely flimsy major reason in operation process.
Well known, based on the principle such as Distribution of Magnetic Field and skin effect of induction heating, the gap determined between ruhmkorff coil and tube wall is very crucial, gap uniformity is an important factor of quench-hardened case homogenizing after pipe fitting induction quenching, and the homogenizing of quench-hardened case directly has influence on quality and the work-ing life of pipe fitting.
Particularly, Fig. 1 shows the structural representation of a kind of typical straight pipe part induction hardening equipment (i.e. straight pipe part induction hardening machine) in prior art, which show and carries out the induction hardened job state of straight pipe part.Shown in Figure 1, when carrying out induction quenching to straight pipe part, the output terminal of rotary drive mechanism 3 is by connecting bracing or strutting arrangement 4(such as movable dog) connect and support one end of straight pipe part 7, thus moment of torsion can be passed to straight pipe part and rotates to drive straight pipe part 7 via connection bracing or strutting arrangement 4 by rotary drive mechanism 3, the other end of straight pipe part 7 is supported on supporting mechanism 10a, rotary drive mechanism 3, connect bracing or strutting arrangement 4, straight pipe part 7 and supporting mechanism 10a relative position are fixed, on the machine tool guideway 8 that wherein rotary drive mechanism 3 and supporting mechanism 10a are arranged on straight pipe part induction hardening equipment, (general rotary drive mechanism and supporting mechanism 10a can be fixed on worktable, and then this worktable is installed on machine tool guideway 8 slidably), and can by axially moving back and forth on machine tool guideway 8 by the drive of motor-driven spindle gear along described straight pipe part 7.In addition, well known, described straight pipe part induction hardening equipment also comprises induction heating power 1, cable 2(typically is concentric cable), inductor block coupling device 5 and quenching inducer 6, induction heating power 1 is electrically connected on cable 2, this cable 2 is along the output terminal of the travel direction of above-mentioned rotary drive mechanism 3 on machine tool guideway 8 through this rotary drive mechanism 3, and be connected to quenching inducer 6 by inductor block coupling device 5, it should be noted that at this, induction heating power 1, cable 2, the position of inductor block coupling device 5 and quenching inducer 6 is fixing, that is, in quenching operation process, induction heating power 1, cable 2, inductor block coupling device 5 and quenching inducer 6 are relative to can along for the rotary drive mechanism 3 of machine tool guideway 8 movement and supporting mechanism 10a, its position is fixing.When processing straight pipe part 7, quenching inducer 6 is made to be inserted into straight pipe part 7 from one end of straight pipe part 7 inner, and make one end of straight pipe part 7 be connected to the output terminal of rotary drive mechanism 3 by connecting bracing or strutting arrangement 4, the other end supports on supporting mechanism 10a, as shown in Figure 1, that is, in quenching operation process, the part of cable 2, inductor block coupling device 5 and quenching inducer 6 are positioned at the inside of straight pipe part 7, quenching inducer 6 needs to keep coaxial with straight pipe part 7, but does not contact with the inwall of straight pipe part 7.In addition, as can see from Figure 1, one end of cable 2 is connected to induction heating power 1, the other end need to extend through rotary drive mechanism 3, straight pipe part 7 internal space and be connected on inductor block coupling device 5.That is, cable 2 needs to have certain rigidity, quenching operation is affected to prevent cable 2 in quenching operation process from flexure occurring, and cable 2 needs to transmit alternating-current in induction quenching, therefore typically, cable 2 generally adopts rigidity or semi-rigid coaxial cable, and cable 2 can increase supporting rod or support tubes if desired.
When carrying out quenching operation, the existing motion that rotates in a circumferential direction of straight pipe part 7 moves axially again, and the motion that rotates in a circumferential direction can improve the quench-hardened case homogeneity of straight pipe part 7 inwall, and moving axially is that the inwall of whole straight pipe part 7 is all hardened.During work, quenching inducer 6 passes to the alternating-current of certain frequency, magnetic line of force is produced by electromagnetic induction, the sidewall cutting magnetic line of straight pipe part 7 produces electromagnetic induction, thus formed and based on skin effect, induced current is tending towards concentrating on the internal skin of straight pipe part 7 and forms eddy current, thus heated by the Electrical resistance produces heat of straight pipe part 7 itself, and carry out quench (recycle system pipeline of cooling fluid is same as the prior art, does not repeat this) further by the cooling fluid that quenching inducer 6 sprays.
But, as can be seen from Figure 1, in the quenching operation process of the straight pipe part induction hardening equipment of this prior art, straight pipe part 7 is in fact only that two ends support, namely by connection bracing or strutting arrangement 4 and supporting mechanism 10a, straight pipe part 7 is supported, wherein connect bracing or strutting arrangement 4 and generally can adopt movable dog, supporting mechanism 10a is mainly roller supporting mechanism.The harm that this supporting form brings is that in quenching operation process, straight pipe part inevitably deforms, thus in quenching operation process, the uniform intervals of quenching inducer 6 and straight pipe part 7 inwall cannot be ensured at all, this quenched case (also referred to as " quench-hardened case ") causing straight pipe part 7 inwall to be formed is seriously uneven, the grievous injury processing quality of straight pipe part 7.
Particularly, Fig. 2 shows the pipe fitting theoretical profile of straight pipe part 7 on the induction hardening equipment shown in Fig. 17 ' and pipe fitting real profile 7 " deformation analysis schematic diagram.Shown in Figure 2, therefrom can find out pipe fitting real profile 7 " be not straight pipe fitting theoretical profile 7 ', what straight pipe part 7 adopted on induction hardening equipment is 2 supports, namely connects bracing or strutting arrangement 4 and supports with supporting mechanism 10a 2.Pipe fitting real profile 7 " the origin cause of formation be because in the deadweight of pipe fitting and course of hot rolling, the problem such as form and position tolerance causes.In quenching process, quenching inducer 6 is transfixion, pipe fitting theoretical profile 7 ' is radially about 2mm with the theoretical gap of quenching inducer 6 in rotary course, but due to pipe fitting real profile 7 " existence, straight pipe part 7 is uneven with the circular gap of quenching inducer 6 and constantly changes in quenching process.Cause tube wall induced currents skewness based on above-mentioned phenomenon, thus cause pipe fitting even and cause quenched case uneven thus by heated wall thickness ununiformity, badly influence the processing quality of straight pipe part.This defect existed in the straight pipe part induction quenching course of processing cannot effectively solve for a long time always, and its of having constituted this area compares the technical barrier being difficult to solve.This technical barrier is not form supported at three point simply by increase such as the 3rd supporting mechanism can solve, particularly, because quenching inducer 6 is fixed position in induction quenching process, and straight pipe part 7 moves axially relative to quenching inducer 6 and circumference is rotated, first, due to 2 supporting forms, straight pipe part 7 can form the different concave deformation of degree because of deadweight, and this concave deformation part can cause the uneven of straight pipe part 7 inwall and quenching inducer 6 interval when quenching inducer 6, second, form and position tolerance (such as linearity) to a certain degree can be there is shaping (such as hot gadolinium) in process in straight pipe part 7, although this form and position tolerance is less, but can not ignore for induction hardening process, although straight pipe part is still circular on each cross section, but because it exists this form and position tolerance, when the various piece of straight pipe part 7 is through quenching inducer 6, the uneven of straight pipe part 7 inwall and quenching inducer 6 interval will inevitably be caused, the form and position tolerances such as this such as linearity formed due to complete processing are insurmountable simply by increase supporting mechanism, 3rd, also can there is microdeformation to a certain extent in straight pipe part 7, such as thermal expansion etc. in induction hardened heat-processed, and this obviously also can have influence on straight pipe part 7 inwall and the circumferentially spaced homogeneity of quenching inducer 6.The quenched case that these factors directly cause straight pipe part 7 inwall to be formed is seriously uneven, and wear resistance and toughness are not mated, and the grievous injury processing quality of straight pipe part 7, makes straight pipe part 7 in use easily scrap, add cost.
In addition, the similar induction hardening equipment of straight pipe part induction hardening equipment shown in some to Fig. 1 or corresponding straight pipe part supporting mechanism is also disclosed in prior art, such as Chinese invention patent CN100335662C and CN1190617C individually disclose a kind of concrete conveying pipe production process and a kind of there is internal hardened layer cylindric pipe fitting and production method and specific equipment, but the technical problem difference of these prior aries owing to paying close attention to, it also cannot solve above-mentioned technological deficiency at all.
In view of this, need to provide a kind of straight pipe part induction quenching supplementary unit, with overcome or relative efficiency alleviate above-mentioned technological deficiency.
Summary of the invention
The present invention's technical problem first to be solved is to provide a kind of straight circle pipe fitting positioning device, this is directly justified pipe fitting positioning device and can be used in carrying out circumference location to straight pipe part, during directly to justify the relative movement existed between pipe fitting positioning device along described straight pipe part axis at straight pipe part and this, can this be kept directly to justify pipe fitting positioning device and the right alignment directly between pipe part corresponding part in degree of optimization ground.
Further, technical problem to be solved by this invention is to provide a kind of straight pipe part induction hardening equipment, this straight pipe part induction hardening equipment can position straight pipe part in induction quenching operation process, keeps the homogeneity of circular gap between straight pipe part and quenching inducer with relative efficiency.
In order to solve the problems of the technologies described above, the invention provides a kind of straight circle pipe fitting positioning device, wherein, comprise and be provided with the first locating mechanism, the locating device body of the second locating mechanism and the 3rd locating mechanism, described first locating mechanism, second locating mechanism and the 3rd locating mechanism positioning element separately distribute along the ring circumferential direction of same layout circumference, and can contact with the inner peripheral surface of straight pipe part or periphery along the radial of this layout circumference simultaneously, positioning element described in each can slide when described straight pipe part and described straight round pipe fitting positioning device relative movement and/or roll on the inner peripheral surface of this straight pipe part or periphery.
Preferably, the contact part of positioning element described in each and described straight pipe part is point of contact or osculatory, and each point of contact or osculatory are on the same cross section of described straight pipe part.
Specifically selectively, described straight round pipe fitting positioning device is pipe fitting inner circumferential locating device, thus described locating device body is inner circumferential locating device body, described first locating mechanism, the second locating mechanism and the 3rd locating mechanism are respectively the first inner circumferential locating mechanism, the second inner circumferential locating mechanism and the 3rd inner circumferential locating mechanism, and this first inner circumferential locating mechanism, the second inner circumferential locating mechanism and the 3rd inner circumferential locating mechanism described positioning element separately can contact with the inner peripheral surface of described straight pipe part simultaneously.
Preferably, the positioning element of described first inner circumferential locating mechanism is can the positioning element of elastic telescopic, thus described first inner circumferential locating mechanism is formed as elasticity inner circumferential locating mechanism; The positioning element of described second inner circumferential locating mechanism is rigidity positioning element, thus this second inner circumferential locating mechanism is formed as rigidity inner circumferential locating mechanism; And described 3rd inner circumferential mechanism is described elasticity inner circumferential locating mechanism or rigidity inner circumferential locating mechanism.
Preferably, described second inner circumferential locating mechanism is arranged as the below being in described first inner circumferential locating mechanism, and makes the positioning element of this second inner circumferential locating mechanism be in vertical position.
Particularly, described inner circumferential locating device body comprises cylindrical locating mechanism installation portion, the periphery of this locating mechanism installation portion forms described layout circumference along at least one section of this locating mechanism installation portion axis, and described first inner circumferential locating mechanism, the second inner circumferential locating mechanism and the 3rd inner circumferential locating mechanism are respectively installed on this locating mechanism installation portion along the circumferential direction of described locating mechanism installation portion.
Typically, described in each, elasticity inner circumferential locating mechanism comprises elastic mechanism supporting base, this elastic mechanism supporting base is rotatably mounted with the elastic mechanism roller as corresponding described positioning element, the periphery of described locating mechanism installation portion is formed with elastic mechanism mounting groove, described elastic mechanism supporting base is coupled in described elastic mechanism mounting groove slidably, to make the supporting surface of this elastic mechanism supporting base relative with the loading end of described elastic mechanism mounting groove, and described elastic mechanism roller protrudes from the periphery of described locating mechanism installation portion, elastic component is supported with between the supporting surface of described elastic mechanism supporting base and the loading end of described elastic mechanism mounting groove.
Preferably, the supporting surface of described elastic mechanism supporting base protrudes and is formed with tail rod portion, the loading end of described elastic mechanism mounting groove is formed with pilot hole, described tail rod portion is slidably matched in described pilot hole, and described elastic component wears in described tail rod portion to be bearing between the supporting surface of described elastic mechanism supporting base and the loading end of described elastic mechanism mounting groove; The sidepiece of described elastic mechanism supporting base is formed with limiting stand terrace, the sidepiece of described elastic mechanism mounting groove is formed and coordinates limiting stand terrace, described limiting stand terrace is relative and spaced with described cooperation limiting stand terrace, when described elastic mechanism supporting base compresses described elastic component and move to predetermined position in described elastic mechanism mounting groove, this limiting stand terrace can contact with each other with the described limiting stand terrace that coordinates.
Typically, rigidity locating mechanism described in each comprises rigid mechanism supporting base and is pivotally mounted to the rigid mechanism roller on this rigid mechanism supporting base, the periphery of described locating mechanism installation portion is formed with corresponding rigid mechanism mounting groove, described rigid mechanism supporting base is fixed in described rigid mechanism mounting groove, and described rigid mechanism roller is protruded from the periphery of described locating mechanism installation portion.
Preferably, described inner circumferential locating device body also comprises the inductor block installation portion coaxial with described locating mechanism installation portion, the external diameter of described inductor block installation portion is less than the external diameter of described locating mechanism installation portion, thus described inner circumferential device body is formed as step shaft shape, the periphery of described inductor block installation portion is provided with the quenching inducer coaxial with this inductor block installation portion; And one end of described inductor block installation portion is connected with the inductor block coupling device for installing cables.
Preferably, described inductor block installation portion upper sleeve through has insulating sleeve and the electromagnetic shielding sheet between this insulating sleeve and described locating mechanism installation portion, and described quenching inducer is installed on the periphery of described insulating sleeve.
The another kind of basic form of pipe fitting positioning device is directly justified as another kind, described straight round pipe fitting positioning device is formed as pipe fitting periphery locating device, thus described locating device body is periphery locating device body, described first locating mechanism, the second locating mechanism and the 3rd locating mechanism are respectively the first periphery locating mechanism, the second periphery locating mechanism and the 3rd periphery locating mechanism, and this first periphery locating mechanism, the second periphery locating mechanism and the 3rd periphery locating mechanism described positioning element separately can contact with the periphery of described straight pipe part simultaneously.
On the technical scheme basis of above-mentioned straight round pipe fitting positioning device, the invention provides a kind of straight pipe part induction hardening equipment, comprise quenching inducer, wherein, this straight pipe part induction hardening equipment also comprises above-mentioned any one and is formed as the straight round pipe fitting positioning device that the straight round pipe fitting positioning device of pipe fitting inner circumferential locating device and/or above-mentioned any one are formed as pipe fitting periphery locating device, described in each, circle pipe fitting positioning device is installed as and fixes relative to described quenching inducer position, and to adjoin with this quenching inducer or adjacent along the axial direction due of this quenching inducer separately, this quenching inducer is coaxial with straight circle pipe fitting positioning device described layout circumference separately described in each.
Preferably, described quenching inducer is connected on a described straight round pipe fitting positioning device along the axial direction due of this quenching inducer.
As a kind of specific equipment for directly round pipe fitting inner wall quenching, the present invention also provides a kind of straight pipe part induction hardening equipment, comprise induction power supply, quenching inducer, cable, the rotary drive mechanism rotated for driving straight pipe part and the pipe fitting bracing or strutting arrangement for supporting described straight pipe part one end, the output terminal of described rotary drive mechanism is provided with for connecting the connection bracing or strutting arrangement supporting the described straight pipe part the other end, described rotary drive mechanism and pipe fitting bracing or strutting arrangement the relative position of each other are fixed, one end of described cable is connected to described induction power supply, the other end passes the output terminal of described rotary drive mechanism along the axial direction due of described quenching inducer and is connected on described quenching inducer, wherein, described straight pipe part induction hardening equipment also comprises above-mentioned any one and is formed as the straight round pipe fitting positioning device that the straight round pipe fitting positioning device of pipe fitting inner circumferential locating device and/or above-mentioned any one are formed as pipe fitting periphery locating device, , described in each, straight circle pipe fitting positioning device is installed as and fixes relative to described quenching inducer position, and along the axial direction due of this quenching inducer and this quenching inducer adjacent or adjacent, this quenching inducer is coaxial with the described layout circumference of circle pipe fitting positioning device straight described in each.
More specifically, described rotary drive mechanism and pipe fitting bracing or strutting arrangement can along the axial direction due synchronizing movings of described quenching inducer on the machine tool guideway of described straight pipe part induction hardening equipment.
Specifically selectively, the straight round pipe fitting positioning device in described straight pipe part induction hardening equipment is described pipe fitting inner circumferential locating device, and described quenching inducer is connected on this pipe fitting inner circumferential locating device.
Preferably, the inner circumferential locating device body of described pipe fitting inner circumferential locating device also comprises the inductor block installation portion coaxial with described locating mechanism installation portion, the external diameter of described inductor block installation portion is less than the external diameter of described locating mechanism installation portion, thus described inner circumferential device body is formed as step shaft shape, coaxial with this inductor block installation portion on the periphery that described quenching inducer installs described inductor block installation portion, and one end of described inductor block installation portion is connected with the inductor block coupling device for installing described cable; Described inductor block installation portion upper sleeve through has insulating sleeve and the electromagnetic shielding sheet between this insulating sleeve and described locating mechanism installation portion, and described quenching inducer is installed on the periphery of described insulating sleeve.
Further selectively, described straight pipe part induction hardening equipment also comprises described pipe fitting periphery locating device, and this pipe fitting periphery locating device and described pipe fitting inner circumferential locating device are in same position along the axial direction due of described quenching inducer.
Preferably, described connection bracing or strutting arrangement is the coupling device that can allow described straight pipe part beat, and the pipe fitting support portion of described pipe fitting bracing or strutting arrangement is resiliency supported portion.
Pass through technique scheme, straight round pipe fitting positioning device of the present invention is by the first to the 3rd locating mechanism on it, can be positioned by the local pipeline section part of the principle of three-point circle to straight pipe part, and this directly justify pipe fitting positioning device there is relative axial motion relative to straight pipe part time, can dynamically carry out correcting positioning action dynamically continuously to the pipeline section part of straight pipe part through this locating device, especially when it is applied to induction hardening equipment, it can make the circular gap of the tube wall of straight pipe part and quenching inducer as far as possible evenly equidistant relative to prior art degree of optimization, alleviate line voltage, the fluctuation of induction power supply voltage etc., thus the inducedmagnetic field intensity in tube wall can be made to be uniformly distributed circumferentially, and then make tube wall induced currents uniform parts, thus relative efficiency make formed quenched case even, improve quenching quality significantly.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Following accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, and itself and following embodiment one are used from explanation the present invention, but protection scope of the present invention is not limited to following the drawings and the specific embodiments.In the accompanying drawings:
Fig. 1 is the structural representation of the straight pipe part induction hardening equipment of prior art, wherein shows this straight pipe part induction hardening equipment and carries out induction quenching to straight pipe part.
Fig. 2 is the deformation analysis schematic diagram of the straight pipe part of the clamping shown in Fig. 1 on described straight pipe part induction hardening equipment.
Fig. 3 is the structural representation of the straight pipe part induction hardening equipment of the specific embodiment of the invention.
Fig. 4 is the schematic side view of the straight round pipe fitting positioning device of a kind of embodiment of the present invention, and the straight round pipe fitting positioning device shown in it is specially pipe fitting inner circumferential locating device.
Fig. 5 is the schematic front view of the straight round pipe fitting positioning device of embodiment shown in Fig. 4.
Fig. 6 is the cross-sectional schematic along the A-A line cutting in Fig. 4, which show this and directly justifies on pipe fitting positioning device and be provided with quenching inducer, and this quenching inducer has only carried out schematic simplification display.
Fig. 7 is the partial enlarged drawing of the second shown inner circumferential locating mechanism position in Fig. 6, which show a kind of concrete details structure of the second inner circumferential locating mechanism.
Fig. 8 is the schematic side view of the straight round pipe fitting positioning device of the another kind of embodiment of the present invention, and the straight round pipe fitting positioning device shown in it is specially pipe fitting periphery locating device.
Fig. 9 is the schematic front view of the straight round pipe fitting positioning device shown in Fig. 8.
Description of reference numerals of the present invention:
Embodiment
Be described in detail to the specific embodiment of the present invention below in conjunction with accompanying drawing, should be understood that, embodiment described herein is only for instruction and explanation of the present invention, and protection scope of the present invention is not limited to following embodiment.
Mainly prior art Problems existing is described for the induction quenching of concrete delivery pipe in description above, but for those skilled in the art apparently, the following straight round pipe fitting positioning device of the present invention is not limited to the induction quenching process or other complete processing that are applied to concrete delivery pipe, but goes for the location of the straight pipe part of other type used.It is straight on the whole that implication about " straight pipe part " represents pipe part, but be not definitely straight, and it is only for bend pipe.In addition, straight round pipe fitting positioning device of the present invention is also not limited to use when carrying out induction quenching to straight circle pipe fitting inner wall, can be suitable for equally when quenching to straight pipe part outer wall.That is, no matter carry out any type of processing treatment to straight pipe part, as long as adopt the straight round pipe fitting positioning device of the following form of the present invention, it all belongs to protection scope of the present invention.
First basic embodiment and the preferred implementation more specifically of straight round pipe fitting positioning device of the present invention are described, the embodiment of present invention will be further described on this basis straight pipe part induction hardening equipment below.In addition, technical conceive of the present invention is not limited to some local or the details shown in Fig. 3 to Fig. 9, therefore will incidentally describe some relevant obvious variations depending on feelings in following description process.
See shown in Fig. 4 to Fig. 9, the straight round pipe fitting positioning device of basic embodiment of the present invention comprises locating device body, this locating device body is provided with the first locating mechanism, second locating mechanism and the 3rd locating mechanism, described first locating mechanism, second locating mechanism and the 3rd locating mechanism positioning element separately along same layout circumference the distribution of ring circumferential direction and can contact with the inner peripheral surface of straight pipe part 7 or periphery along the radial of this layout circumference simultaneously, positioning element described in each can slide when described straight pipe part and described straight round pipe fitting positioning device relative movement and/or roll on the inner peripheral surface of this straight pipe part or periphery.
It should be noted that at this, in practical situation, each positioning element is in the structural part with certain volume, the contact part of each positioning element and straight pipe part inner peripheral surface or periphery may be a contact surface, also may be point of contact or osculatory, as long as but contact part is in circumferentially same, this same circumference in theory with above-mentioned layout circumferential concentric (or coaxial), but certain deviation can be there is in practical situation, in addition, each positioning element above-mentioned along same layout circumference circumferentially, mainly refer to that each positioning element is in the plane that this layout circumference limits, but because each positioning element is the structural part with certain volume, the plane that above-mentioned layout circumference limits is not limited to theoretic plane form, and this plane should be interpreted as the thickness having and adapt with positioning element, this should be understandable for those skilled in the art.Preferably, the contact part of positioning element described in each and described straight pipe part can be point of contact or osculatory, correspondingly, now each point of contact or osculatory are on the same cross section of described straight pipe part 7, in this case, the three-point circle that the contact part of three positioning elements is formed is the most accurate.
When carrying out induction quenching to straight pipe part 7 on straight pipe part induction hardening equipment, by the above-mentioned straight round pipe fitting positioning device be fixed on induction hardening equipment, straight pipe part 7 is positioned, the two ends of straight pipe part 7 can support as prior art, when straight pipe part 7 moves axially, arbitrary section of straight pipe part 7 is passed through or passes through straight circle pipe fitting positioning device, because the positioning element on the first to the 3rd locating mechanism of straight pipe part 7 forms the structure of three-point circle, no matter directly there is any distortion or form and position tolerance in pipe part 7, move axially at straight pipe part 7 and make the different piece on this straight pipe part 7 successively through straight circle pipe fitting positioning device, it all can be corrected by directly justifying pipe fitting positioning device, the center of circle of the corresponding section of straight pipe part 7 is overlapped with the determined center of circle of positioning element of straight circle pipe fitting positioning device, concentric by quenching inducer being arranged as with straight round pipe fitting positioning device of the present invention in this case, namely can ensure that quenching inducer is relatively uniform consistent with straight pipe part 7 circular gap, thus improve quenching quality.It should be noted that at this, due to the corrective action of straight round pipe fitting positioning device of the present invention to straight pipe part 7 in straight pipe part 7 moving process, the phenomenon of slight " tilting " or " beat " can be there is in straight pipe part 7 in quenching operation process, may can there is beat or the tilting phenomenon of slight extent in one end that such as straight pipe part 7 is supported in pipe fitting bracing or strutting arrangement 12 in figure 3, all the more so when especially there is larger shape position error in straight pipe part 7 forming process in operation process.
Within the scope of the technical conceive of above-mentioned straight round pipe fitting positioning device, straight round pipe fitting positioning device of the present invention is mainly divided into two kinds of basic forms, and namely pipe fitting inner circumferential locating device 10 and pipe fitting periphery locating device 11, described below respectively.
See shown in Fig. 4 to Fig. 7, above-mentioned straight round pipe fitting positioning device can be pipe fitting inner circumferential locating device 10, correspondingly, described locating device body is inner circumferential locating device body 16, above-mentioned first locating mechanism, the second locating mechanism and the 3rd locating mechanism are respectively the first inner circumferential locating mechanism 13, second inner circumferential locating mechanism 14 and the 3rd inner circumferential locating mechanism 15, and the respective described positioning element of this first inner circumferential locating mechanism 13, second inner circumferential locating mechanism 14 and the 3rd inner circumferential locating mechanism 15 can contact with the inner peripheral surface of described straight pipe part 7 simultaneously.
On the basis of the embodiment of above-mentioned pipe fitting inner circumferential locating device 10, preferably, the positioning element of at least described first inner circumferential locating mechanism 13 is can the positioning element of elastic telescopic, thus described first inner circumferential locating mechanism 13 is formed as elasticity inner circumferential locating mechanism.It should be noted that at this, the elastic telescopic scope of the positioning element of the first locating mechanism is unsuitable excessive, in order to avoid affect the tolerance range of the three-point circle heart, the existence of this elastic locating mechanism, when can make straight pipe part 7 relative to straight circle pipe fitting positioning device motion, the positioning element of straight round pipe fitting positioning device has certain Flexible change amount, avoids the point of contact due to three positioning elements be rigidity and have influence on the motion of straight pipe part 7, thus makes the motion of straight pipe part 7 more steady.In addition, first locating mechanism is being also advantageous in that of elastic locating mechanism, due in straight pipe part forming process due to mismachining tolerance, there is certain deviation sometimes in its external diameter or internal diameter, the existence of this elastic locating mechanism, three positioning elements directly justified on pipe fitting positioning device can be made can to adapt to this deviation and keep good contact with the inner-wall surface of straight pipe part 7 or outside wall surface, and form suitable pressure, this can make to correct certralizing ability and more effectively realize.It should be noted that at this; as a kind of form of implementation; first inner circumferential locating mechanism 13, second inner circumferential locating mechanism 14 and the 3rd inner circumferential locating mechanism 15 all can be formed as elasticity inner circumferential locating mechanism, and this belongs to technical conceive of the present invention equally, therefore also belongs to protection scope of the present invention.
On the basis of the preferred implementation of above-mentioned pipe fitting inner circumferential locating device 10, as a kind of canonical form, the positioning element of described second inner circumferential locating mechanism 14 is rigidity positioning element, thus this second inner circumferential locating mechanism is formed as rigidity inner circumferential locating mechanism.In addition, the 3rd inner circumferential locating mechanism 15 can be described elasticity inner circumferential locating mechanism or rigidity inner circumferential locating mechanism.The advantage of this preferred form is, when the first inner circumferential locating mechanism 13 of described pipe fitting inner circumferential locating device 10 has been elastic locating mechanism, by making the second inner circumferential locating mechanism 14 and/or the 3rd inner circumferential locating mechanism 15 be rigidity locating mechanism, positioning in process to straight pipe part 7, rigidity locating mechanism can be made for other locating mechanism to be in lower position, when only the second inner circumferential locating mechanism 14 is rigidity inner circumferential locating mechanism, the positioning element of this second inner circumferential locating mechanism 14 can be arranged as vertically, the positioning element of this rigidity locating mechanism can form certain supporting role when contacting with the inner-wall surface of straight pipe part 7, it can bear the weight of inner circumferential pipe fitting positioning device 10 itself effectively, make inner circumferential pipe fitting positioning device 10 more stable, this is provided with quenching inducer 6 on inner circumferential pipe fitting positioning device 10 is all the more so.Therefore, when the second inner circumferential locating mechanism 14 is formed as rigidity inner circumferential locating mechanism, described second inner circumferential locating mechanism 14 can be arranged as the below being in the first inner circumferential locating mechanism 13, and makes the positioning element of this second inner circumferential locating mechanism 14 be in vertical position.
Typically, shown in Figure 6, this inner circumferential locating device body 16 comprises cylindrical locating mechanism installation portion 45, the periphery of this locating mechanism installation portion 45 forms described layout circumference along at least one section of axis of this locating mechanism installation portion 45, and described first inner circumferential locating mechanism 13, second inner circumferential locating mechanism 14 and the 3rd inner circumferential locating mechanism 15 are respectively installed on this locating mechanism installation portion 45 along the circumferential direction of described locating mechanism installation portion.
Such as, be formed as with regard to elasticity inner circumferential locating mechanism with regard to above-mentioned first inner circumferential locating mechanism 13, typically, shown in Fig. 6 and Fig. 7, each elasticity inner circumferential locating mechanism comprises elastic mechanism supporting base 27, this elastic mechanism supporting base 27 is rotatably mounted with the elastic mechanism roller 23 as corresponding described positioning element, the periphery of the locating mechanism installation portion 45 of described inner circumferential locating device body 16 is formed with elastic mechanism mounting groove, described elastic mechanism supporting base 27 is coupled in described elastic mechanism mounting groove slidably, to make the supporting surface 42 of this elastic mechanism supporting base 27 relative with the loading end 41 of described elastic mechanism mounting groove, and described elastic mechanism roller 23 protrudes from the periphery of described locating mechanism installation portion 45, elastic component 28 is supported with between the supporting surface 42 of described elastic mechanism supporting base 27 and the loading end 41 of described elastic mechanism mounting groove.
More preferably, shown in Figure 7, the supporting surface 42 of described elastic mechanism supporting base 27 protrudes and is formed with tail rod portion 30, the loading end 41 of described elastic mechanism mounting groove is formed with pilot hole 29, described tail rod portion 30 is slidably matched in described pilot hole 29, and described elastic component 28 wears in described tail rod portion 30 to be bearing between the supporting surface 42 of described elastic mechanism supporting base 27 and the loading end 41 of described elastic mechanism mounting groove.In the figure 7, described elastic component 28 is disc spring, can certainly be the elastic components such as whisker.In addition, the first inner circumferential locating mechanism 13 as inner circumferential elastic locating mechanism when, in order to prevent the elastic mechanism roller 23 as positioning element excessive by the deformation range of elastic mechanism supporting base 27 compression elastic piece 28 in operation process, and have influence on the accuracy of location, preferably, shown in Figure 7, the sidepiece of described elastic mechanism supporting base 27 is formed with limiting stand terrace 43, the sidepiece of described elastic mechanism mounting groove is formed and coordinates limiting stand terrace 44, described limiting stand terrace 43 is relative and spaced with described cooperation limiting stand terrace 44, when described elastic mechanism supporting base 27 compresses described elastic component 28 and move to predetermined position in elastic mechanism mounting groove, described limiting stand terrace 43 contacts with each other with the described limiting stand terrace 44 that coordinates, thus stop the movement further of elastic mechanism supporting base 27, play position-limiting action.
With regard to elastic mechanism roller 23, it should be noted that at this, elastic mechanism roller 23 is herein only that pair roller has carried out corresponding name for ease of differentiation, but and does not mean that this elastic mechanism roller 23 structurally exists substantial difference with rigid mechanism roller 19 hereinafter described.In addition, can be various as the component form of positioning element, such as, spherical salient etc. on spin, elastic mechanism supporting base 27, as long as it can contact with the inner peripheral surface of straight pipe part and can not affect the motion of straight pipe part in this inner peripheral surface relatively sliding or rolling.Particularly, shown in Figure 7, with regard to the installation form of elastic mechanism roller 23, the other end relative with described supporting surface 41 of described elastic mechanism supporting base 27 is formed with roller mounting slot (such as U-lag), on the both sides sidewall of this roller mounting slot, supporting is provided with bolster 26, this bolster 26 being provided with sliding surface bearing 24(can certainly be rolling bearing), described elastic mechanism roller 23 is installed on this sliding surface bearing 24.In addition, in order to prevent sliding surface bearing 24 from channeling bit, the two ends of sliding surface bearing 24 are also respectively arranged with the end ring 25 be arranged on described bolster 26.Certainly; the installation form of elastic mechanism roller 23 can be varied; such as; bolster 26 can rotatably support on the both sides sidewall of roller mounting slot; now elastic mechanism roller is fixed on this bolster 26; in operation process, elastic mechanism roller 23 can be followed bolster 26 and be rotated, and these simple variant forms all belong to protection scope of the present invention.At other inner circumferential locating mechanism, such as, when the 3rd inner circumferential locating mechanism 15 is formed as elasticity inner circumferential mechanism, it can adopt above-mentioned identical or substantially identical structure, repeats no more this.
With regard to the rigidity locating mechanism that above-mentioned second inner circumferential locating mechanism 14 is formed (select form as one, the 3rd inner circumferential locating mechanism 15 also can be formed as rigidity locating mechanism simultaneously), its structure formation can be diversified.Typically, shown in Figure 6, the periphery of the locating mechanism installation portion 45 of described inner circumferential locating device body 16 is formed with rigid mechanism mounting groove, the rigid mechanism roller 19 that described rigidity locating mechanism comprises rigid mechanism supporting base 22 and is pivotally mounted on this rigid mechanism supporting base 22, described rigid mechanism supporting base 22 is fixed in described rigid mechanism mounting groove, and described rigid mechanism roller 19 is protruded from the periphery of the locating mechanism installation portion 45 of inner circumferential locating device body 16.Particularly, as the concrete installation form of the elastic mechanism roller 23 of above-mentioned elasticity inner circumferential locating mechanism, one end end face being adjacent to described locating mechanism installation portion 45 periphery of described rigid mechanism supporting base 22 is formed with roller mounting slot (such as U-lag), on the both sides sidewall of this roller mounting slot, supporting is provided with bolster 21, this bolster 21 is provided with sliding surface bearing 20, and described rigid mechanism roller 19 is installed on this sliding surface bearing 20.Certainly, in addition, it may occur to persons skilled in the art that the various ways of rigidity locating mechanism, such as, locating mechanism installation portion 45 periphery of inner circumferential locating device body 16 can be formed with rigid mechanism mounting groove, the both sides sidewall of this rigid mechanism mounting groove can support and be provided with bolster, by installing sliding surface bearing or rolling bearing on this bolster, and installs rigid mechanism roller on sliding surface bearing or rolling bearing.Can certainly directly fix the positioning element that has sphere portion in rigid mechanism mounting groove, and make the sphere portion of this positioning element protrude from the periphery of locating mechanism installation portion, these simple variant forms all belong to protection scope of the present invention.
In addition, as mentioned above, the 3rd inner circumferential locating mechanism 15 can be formed as elasticity inner circumferential locating mechanism or rigidity inner circumferential locating mechanism, and concrete structure formation can with reference to the form of above-mentioned elasticity inner circumferential locating mechanism or rigidity inner circumferential locating mechanism.
When straight round pipe fitting positioning device of the present invention is formed as above-mentioned pipe fitting inner circumferential locating device 10, due to this pipe fitting inner circumferential locating device 10 in induction quenching operation process for positioning the inner circumferential of straight pipe part 7, and need to fix relative to straight pipe part 7 position moved axially and circumference is rotated, in this case, above-mentioned pipe fitting inner circumferential locating device 10 needs to be fixed by installing support bar accordingly, and it is inner that this installation support bar can extend into straight pipe part 7.But more preferably, above-mentioned pipe fitting inner circumferential locating device 10 of the present invention can integrated quenching inducer 6, thus can be generally rigidity or semi-rigid coaxial cable by means of cable 2() be fixed.Therefore, as a kind of preferred form, inner circumferential locating device body 16 of the present invention also comprises the inductor block installation portion 46 coaxial with described locating mechanism installation portion 45, the external diameter of described inductor block installation portion 46 is less than the external diameter of described locating mechanism installation portion 45, thus described inner circumferential device body 16 is formed as step shaft shape, the periphery of described inductor block installation portion 46 is provided with the quenching inducer 6 coaxial with this inductor block installation portion 46.In addition, one end of this inductor block installation portion 46 is connected with inductor block coupling device 5.Particularly, described inductor block installation portion 46 is formed with axial open holes, described inductor block coupling device 5 is the pipe connecting passed for current supply cable 2, and one end of this pipe connecting is inserted and is installed in described axial open holes, and the tube wall of described pipe connecting is formed with pipeline passes through opening.Shown in Figure 6, more preferably, described inductor block installation portion 46 upper sleeve through has insulating sleeve 18 and the electromagnetic shielding sheet 17 between this insulating sleeve 18 and described locating mechanism installation portion 45, and described quenching inducer 6 is installed on the periphery of described insulating sleeve 18.Typically, described electromagnetic shielding sheet 17 can be the electromagnetic shielding sheet of copper sheet or other likeness in form.
The foregoing describe the situation that straight round pipe fitting positioning device of the present invention is formed as pipe fitting inner circumferential locating device 10, as another kind of basic form, straight round pipe fitting positioning device of the present invention can also be formed as pipe fitting periphery locating device 11, shown in Fig. 8 and Fig. 9, described locating device body is periphery locating device body 35, above-mentioned first locating mechanism, second locating mechanism and the 3rd locating mechanism are respectively the first periphery locating mechanism 31, second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33, this the first periphery locating mechanism 31, the respective described positioning element of second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33 can contact with the periphery of described straight pipe part 7 simultaneously.
On the basis of the embodiment of above-mentioned pipe fitting periphery locating device 11, preferably, the positioning element of at least described first periphery locating mechanism 31 is can the positioning element of elastic telescopic, thus described first periphery locating mechanism 31 is formed as elasticity periphery locating mechanism.As mentioned above, the existence of this elasticity periphery locating mechanism, when can make straight pipe part 7 relative to straight circle pipe fitting positioning device motion, the positioning element of straight round pipe fitting positioning device has certain Flexible change amount, avoid the point of contact due to three positioning elements be rigidity and have influence on the motion of straight pipe part 7, thus make the motion of straight pipe part 7 more steady.In addition, first periphery locating mechanism is being also advantageous in that of elastic locating mechanism, due in straight pipe part forming process due to mismachining tolerance, there is certain deviation sometimes in its external diameter or internal diameter, the existence of this elasticity periphery locating mechanism, three positioning elements directly justified on pipe fitting positioning device can be made can to adapt to this deviation and keep good contact with the inner-wall surface of straight pipe part 7 or outside wall surface, and form suitable pressure, this can make to correct certralizing ability and more effectively realize.In addition; as a kind of form of implementation; first periphery locating mechanism 31, second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33 all can be formed as elasticity inner circumferential locating mechanism, and this belongs to technical conceive of the present invention equally, therefore also belongs to protection scope of the present invention.
On the basis of the technical scheme of above-mentioned pipe fitting periphery locating mechanism, preferably, shown in Figure 8, described second periphery locating mechanism 32 and the respective positioning element of the 3rd periphery locating mechanism 33 are rigidity positioning element, thus this second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33 are formed as rigidity periphery locating mechanism respectively.In this case, while straight pipe part periphery being located at this second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33, utilize the supporting role that its respective positioning element is certain to straight pipe part 1, preferably, described second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33 can be arranged as the below being in described first inner circumferential locating mechanism 31, and keep this position in use, such as, shown in Fig. 8.
Particularly, shown in Fig. 8 and Fig. 9, described periphery locating device body 35 is formed with pipe fitting passing hole 34, the inner peripheral surface of this pipe fitting passing hole 34 forms described layout circumference along at least one section of this pipe fitting passing hole 34, and described first periphery locating mechanism 31, second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33 are installed on described periphery locating device body 35 along the circumference of described pipe fitting passing hole 34.With regard to the elasticity periphery locating mechanism that the first periphery locating mechanism 31 is formed, its specific constructive form can be varied, for example, see shown in Fig. 8, this elasticity periphery locating mechanism can comprise supporting bar, described periphery locating device body 35 is formed with the supporting bar open holes along described pipe fitting passing hole 34 radial direction, described supporting bar is installed in the supporting bar open holes on periphery locating device body 35 slidably, and one end of described supporting bar is in described pipe fitting passing hole 34, it is outside that the other end is in described periphery locating device body 35, one end being in described pipe fitting passing hole 34 of described supporting bar is rotatably mounted with elastic mechanism positioning roller, and thread fit finite place piece (such as stop nut) in the bar section being in locating device body 35 outside, described periphery of this supporting bar, described supporting bar upper sleeve through has the elastic component between described periphery locating device body 35 and described locating part, such as whisker or disc spring.Like this, when the elastic mechanism positioning roller being used as positioning element of this first periphery locating mechanism contacts with the periphery of straight pipe part 7, in operation process when straight pipe part moves, it can be moved slightly by compression elastic piece according to the stressing conditions in operation process and adapt to straight pipe part state and play positioning action better.Be formed as with regard to rigid mechanism with regard to the second periphery locating mechanism 32 and the 3rd periphery locating mechanism 33, it may occur to persons skilled in the art that various ways, such as, shown in Figure 8, rigidity periphery locating mechanism described in each can comprise the rigidity periphery positioning support bearing be fixed on described pipe fitting passing hole 34 periphery, and this rigidity periphery positioning support bearing is rotatably mounted with rigid mechanism positioning roller.In addition, rigidity periphery locating mechanism can have other various ways, and such as protrude from sphere salient etc. in described pipe fitting passing hole 34, these variations all belong to protection scope of the present invention.
As preferred structure formation, this be it will be appreciated that, may be used for directly justifying pipe fitting inner wall from above-mentioned pipe fitting inner circumferential locating device 10 to carry out induction hardened quenching inducer and connect different, pipe fitting periphery locating device 11 generally needs to be installed on induction hardening equipment, because on different induction hardening equipments, the position of quenching inducer is not quite similar, in order to improve the adaptability of pipe fitting periphery locating device 11, preferably, shown in Figure 8, described pipe fitting periphery locating device 11 also comprises the mounting base 37 that can regulate height, described periphery locating device body 35 to be installed on this mounting base 37 and to be installed as and can to move along the direction perpendicular with described pipe fitting passing hole 34 axial direction due.Particularly, such as, shown in Figure 8, described mounting base 37 has the supporting leg 40 for supporting or be fixed on quenching sensing apparatus, each supporting leg is provided with altitude mixture control cover 38, this altitude mixture control cover is conventional in the prior art, generally regulate the length of thread fit to change height, such as, altitude mixture control cover 38 is as base for supporting, and this altitude mixture control cover 38 and the lower end thread fit of respective leg 40, overlap 38 by screwing altitude mixture control, the thread fit length with supporting leg 40 can be changed, thus change bearing height.In addition, can a kind of canonical form of lateral adjustments as periphery locating device body 35, shown in Figure 8, the bottom of described periphery locating device body 35 is run through and is formed with the internal thread hole perpendicular with described pipe fitting passing hole 34 axial direction due, the upper surface of described mounting base 37 is provided with a pair screw mandrel supporting base 39, this is rotatably supported with screw mandrel 39 in screw mandrel supporting base 39, described periphery locating device body is installed on described mounting base 37 by described internal thread hole with described coordinating of screw mandrel 39, thus by the rotation of screw mandrel, make periphery locating device body 35 can transverse shifting.By above-mentioned altitude mixture control and lateral adjustments, make the pipe fitting periphery locating device 11 of this form of the present invention can be applied to different induction hardening equipments or other pipe fitting processing units, to position straight pipe part.
The foregoing describe the basic embodiment of straight round pipe fitting positioning device of the present invention and this directly justifies two kinds of basic forms within the scope of pipe fitting positioning device technical conceive, i.e. the embodiment of pipe fitting inner circumferential locating device 10 and pipe fitting periphery locating device 11 and some variations.Straight pipe part induction hardening equipment of the present invention is below described.
Shown in Figure 3, straight pipe part induction hardening equipment of the present invention comprises quenching inducer 6, wherein, it also comprises pipe fitting inner circumferential locating device in the above-mentioned round pipe fitting positioning device of the present invention and/or pipe fitting periphery locating device, described in each, circle pipe fitting positioning device is installed as and fixes relative to described quenching inducer 6 position, and to adjoin with this quenching inducer 6 or adjacent along the axial direction due of this quenching inducer 6 separately, this quenching inducer 6 is coaxial with circle pipe fitting positioning device described layout circumference separately described in each, namely the central axis of quenching inducer 6 is through each circle center of circle of layout circumference of pipe fitting positioning device or the central axes with this layout circumference.
Technique scheme be it will be appreciated that, above-mentioned induction hardening equipment is that the well-known components such as such as induction power supply 1, rotary drive mechanism 3 and the cable 2 mentioned can be same as the prior art, induction hardening equipment of the present invention only can adopt pipe fitting inner circumferential locating device 10 or pipe fitting periphery locating device 11, also can adopt pipe fitting inner circumferential locating device 10 and pipe fitting periphery locating device 11 simultaneously.Each circle pipe fitting positioning device needs to be installed as adjacent or adjacent with induction quenching device 1, its adjacent degree, when not affecting each positioning element of pipe part to straight pipe part location, even can reach the degree that the axial direction due along induction quenching device 1 partially overlaps.By quenching inducer 6, the induction hardened situation of inwall is carried out for straight pipe part 7 although only show in Fig. 3, but apparently, round pipe fitting positioning device of the present invention also may be used for the object of quenching to the outer wall of straight pipe part 7, in this case, induction quenching device 1 is generally formed as hollow form to be passed through for straight pipe part 7, now induction quenching its 1 can by rotate mounting bracket be fixed on induction hardening equipment, when adopting pipe fitting periphery locating device 11, also can directly be fixed on pipe fitting periphery locating device 11, if now adopt pipe fitting inner circumferential locating device 10, then pipe fitting inner circumferential locating device 10 generally can be fixed by the support bar of the axial direction due (axial direction due corresponding under straight pipe part 7 job state) along induction quenching device 1.In a word, regardless of its structure formation, as long as adopt the technical conceive of technique scheme, it all belongs to protection scope of the present invention.
Preferably, described quenching inducer 6 is connected on a described straight round pipe fitting positioning device along the axial direction due of this quenching inducer 6.
Shown in Figure 3, as for the directly round typical induction hardening equipment of the induction hardened one of pipe fitting inner wall, this straight pipe part induction hardening equipment comprises induction power supply 1, quenching inducer 6, cable 2, the rotary drive mechanism 3 rotated for driving straight pipe part 7 and the pipe fitting bracing or strutting arrangement 12 for supporting described straight pipe part 7 one end, described rotary drive mechanism 3 is fixed with described pipe fitting bracing or strutting arrangement 12 relative position, and can along the axial direction due synchronizing moving of described quenching inducer 6 on the machine tool guideway 8 of described straight pipe part induction hardening equipment, the output terminal of described rotary drive mechanism 3 is provided with the connection bracing or strutting arrangement 4 for pipe part 7 the other end straight described in clamp standoff, one end of described cable 2 is connected to described induction power supply 1, the other end extends through the output terminal of described rotary drive mechanism 3 along the axial direction due of described quenching inducer 6 and is connected on described quenching inducer 6, wherein, described straight pipe part induction hardening equipment comprise above-mentioned pipe fitting inner circumferential locating device 10(herein this pipe fitting inner circumferential locating device 10 form the first pipe fitting positioning device of straight pipe part induction hardening equipment), this pipe fitting inner circumferential locating device 10 is installed as to be fixed relative to described quenching inducer 6 position, and along the axial direction due of this quenching inducer 6 and this quenching inducer 6 adjacent or adjacent, this quenching inducer 6 is coaxial with the layout circumference of described pipe fitting inner circumferential locating device 10, namely the central axis of quenching inducer 6 is through the center of circle of layout circumference of this pipe fitting inner circumferential locating device or the central axes with this layout circumference.
Preferably, described quenching inducer 6 is connected on this pipe fitting inner circumferential locating device 10.Particularly, as mentioned above, the inner circumferential locating device body 16 of described pipe fitting inner circumferential dress locating device also comprises the inductor block installation portion 46 coaxial with described locating mechanism installation portion 45, the external diameter of described inductor block installation portion 46 is less than the external diameter of described inductor block installation portion 46, thus described inner circumferential device body 16 is formed as step shaft shape, the periphery of described inductor block installation portion 46 is provided with the quenching inducer 6 coaxial with this inductor block installation portion 46.Further, one end of this inductor block installation portion 46 is connected with inductor block coupling device 5, and described cable 2 can be connected to described quenching inducer 6 by this inductor block coupling device 5.Particularly, described inductor block coupling device 5 is the pipe connecting passed for current supply cable 2, this pipe connecting pipe fitting inner circumferential locating device 10 torsion, the frictional force that are subject to can pass to this cable 2 of cable 2(and is generally rigidity or semi-rigid coaxial cable in operation process, also there is the support bar arranged extraly for supporting this cable 2 in prior art).Described inductor block installation portion 46 is formed with axial open holes, and one end of this pipe connecting is inserted and is installed in described axial open holes, and the tube wall of described pipe connecting is formed with pipeline passes through opening.Shown in Figure 6, more preferably, described inductor block installation portion 46 upper sleeve through has insulating sleeve 18 and the electromagnetic shielding sheet 17 between this insulating sleeve 18 and described locating mechanism installation portion 45, and described quenching inducer 6 is installed to described insulating sleeve 18.Typically, described electromagnetic shielding sheet 17 can be the electromagnetic shielding sheet of copper sheet or other likeness in form, this electromagnetic shielding sheet 17 mainly can prevent the magnetic field of pipe fitting inner circumferential locating device 10 pairs of quenching inducers 6 from producing interference, thus is conducive to the further raising of induction quenching quality.
On the basis of technique scheme, as shown in Figure 3, described straight pipe part induction hardening equipment can also comprise above-mentioned pipe fitting periphery locating device 11(herein this pipe fitting periphery locating device 11 form the second pipe fitting positioning device of straight pipe part induction hardening equipment), because this pipe fitting periphery locating device 11 is for positioning the periphery of straight pipe part 7, therefore this pipe fitting periphery locating device 11 can be on same position along the axial direction due of described quenching inducer 6 with described pipe fitting inner circumferential locating device 10, namely overlap on the axial direction due of described quenching inducer 6 each other.Similarly, this pipe fitting periphery locating device 11 is installed as to be fixed relative to described quenching inducer 6 position, and along the axial direction due of this quenching inducer 6 and this quenching inducer 6 adjacent or adjacent, this quenching inducer 6 is coaxial with the layout circumference of described pipe fitting periphery locating device 11, and namely the central axis of quenching inducer 6 is through the center of circle of layout circumference of this pipe fitting periphery locating device or the central axes with this layout circumference.
In addition, in technique scheme, described cable 2 can be rigidity or semi-rigid coaxial cable, knows ground for those skilled in the art, necessity can be supported cable 2 by the support bar extended along quenching inducer axial direction due, to strengthen the stability of quenching inducer 6.In addition, quenching inducer 6 can be high-frequency quenching inductor block, medium frequency quenching inductor block or very high frequency(VHF) quenching inducer etc.Preferably, described connection bracing or strutting arrangement 4 can for allowing the coupling device of described straight pipe part 7 beat (comprising the slight beat of upper and lower beat or left and right), can be such as shaft coupling or movable collar, the pipe fitting support portion of described pipe fitting bracing or strutting arrangement 12 be resiliency supported portion.So more be conducive to straight round pipe fitting positioning device of the present invention, in quenching operation process, correction work carried out to pipe fitting, when the corresponding site of straight circle pipe fitting positioning device to straight pipe part 7 positions, other position of straight pipe part 7 can change attitude slightly to adapt to directly justify the correction of pipe fitting positioning device.Contrast it will be appreciated that, because straight pipe part entirety is in rigid state, although it exists form and position tolerance (or deviation) or occurs metamorphism because of deadweight etc., but when straight circle pipe fitting positioning device arbitrary rounded section of straight pipe part 7 orientated as the circle (three-point circle) limited with this aligned contact position of directly justifying three positioning elements of pipe fitting positioning device overlap or substantially overlap time, now can think that the concentric or essentially concentric of circle that this rounded section of straight pipe part 7 and the aligned contact position of three positioning elements limit (considers the volume of each positioning element, also " coaxially " can be thought herein), thus can think that this rounded section of straight pipe part 7 and the layout circumference of circle pipe fitting positioning device are in essentially concentric or concentricity (considers practical situation approx, also can be called " right alignment ") be in the deviation range of relative degree of optimization, but because straight pipe part entirety is in rigid state, if the arbitrary cross section on it is corrected to the less situation of concentricity (or right alignment) deviation by under being in the state larger with above-mentioned layout circumferential concentric degree (or right alignment) deviation, this means that this cross section of straight pipe part 7 changes position, the change position, a pipe fitting position of a rigidity, other position will be followed and be changed position.Certainly, connection bracing or strutting arrangement 4 described above can for allowing the coupling device of described straight pipe part 7 beat (comprising the slight beat of upper and lower beat or left and right), and/or the pipe fitting support portion of described pipe fitting bracing or strutting arrangement 12 is that resiliency supported portion carries out preferred form, in fact straight pipe part 7 is only extremely slight beat in trimming process, even if do not adopt this preferred form, due to pipe part 7 straight under practical situation because the factors such as installation can not support by perfect rigidity, also substantially corrective action can be reached by the elasticity inner circumferential under the pressure correction of directly round pipe fitting positioning device itself and its preferred form or periphery locating mechanism.
The foregoing describe straight round pipe fitting positioning device of the present invention and apply the straight pipe part induction hardening equipment that this directly justifies pipe fitting positioning device, the principle of work of relevant straight pipe part induction hardening equipment application straight round pipe fitting positioning device of the present invention above additionally, simple, shown in Figure 3, such as, straight round pipe fitting positioning device is fixed relative to straight pipe part 7, quenching inducer 6 is also fixed with straight pipe part 1 relatively simultaneously, pass through when straight pipe part 7 or pass through straight circle pipe fitting positioning device, this is directly justified the corresponding site of pipe fitting positioning device to straight pipe part 7 and positions correction work, thus make quenching inducer 6 and pipe fitting inner wall face or outside wall surface gap relatively uniform, relative to prior art optimization quenching quality, thus quenched case is even, improve processing quality.
Two kinds of basic forms of pipe fitting positioning device are directly justified with regard to the present invention, i.e. pipe fitting inner circumferential locating device 10 and pipe fitting periphery locating device 11, inner circumferential locating device 10 wherein such as shown in Fig. 4 to Fig. 7 can be applied in that heat treatment space is limited effectively, inclement condition when, it can also carry out effective supplemental support to the quenching inducer of cantilever installation form, and the periphery locating device 11 shown in Fig. 8 and Fig. 9 is all adjustable in height, horizontal position, snap-in force etc., adaptability is more extensive.The built-in locating device of pipe fitting 10 and pipe fitting periphery locating device 11 be the relative homogeneity improving quenching inducer and pipe fitting circular gap in energy degree of optimization ground all, thus ensure that the quench-hardened case of pipe fitting is even, pipe fitting inner circumferential locating device 10 and pipe fitting periphery locating device 11 can adopt separately, also can adopt simultaneously, it not only can be used for the homogeneity improving inner surface of pipe fitting induction quenching quench-hardened case, and is applicable to the quenching technology of outer surface of pipe fittings.In addition, for those skilled in the art can it is contemplated that straight round pipe fitting positioning device of the present invention not only can be applied in induction hardening process, it also can be suitable in other Treatment technique for processing of straight pipe part, such as, in spraying coating process.
As can be seen from upper description, straight round pipe fitting positioning device of the present invention (such as pipe fitting inner circumferential locating device 10 or pipe fitting periphery locating device 11) by first on it to the 3rd locating mechanism, can be positioned by the local pipeline section part of the principle of three-point circle to straight pipe part, and this directly justify pipe fitting positioning device there is relative axial motion relative to straight pipe part time, can dynamically carry out correcting positioning action dynamically continuously to the pipeline section part of straight pipe part through this locating device, especially when it is applied to induction hardening equipment, it can make the circular gap of the tube wall of straight pipe part and quenching inducer as far as possible evenly equidistant relative to prior art degree of optimization, alleviate line voltage, the fluctuation of induction power supply voltage etc., thus the inducedmagnetic field intensity in tube wall can be made to be uniformly distributed circumferentially, and then make tube wall induced currents uniform parts, thus relative efficiency make formed quenched case even, improve quenching quality significantly.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (18)
1. straight circle pipe fitting positioning device, wherein, comprise and be provided with the first locating mechanism, the locating device body of the second locating mechanism and the 3rd locating mechanism, described first locating mechanism, second locating mechanism and the 3rd locating mechanism positioning element separately distribute along the ring circumferential direction of same layout circumference, and can contact with the inner peripheral surface of straight pipe part (7) along the radial of this layout circumference simultaneously, positioning element described in each can slide when described straight pipe part (7) is mobile and/or roll on the inner peripheral surface of this straight pipe part, described straight round pipe fitting positioning device is pipe fitting inner circumferential locating device (10), thus described locating device body is inner circumferential locating device body (16), described first locating mechanism, second locating mechanism and the 3rd locating mechanism are respectively the first inner circumferential locating mechanism (13), second inner circumferential locating mechanism (14) and the 3rd inner circumferential locating mechanism (15), this the first inner circumferential locating mechanism (13), the respective described positioning element of second inner circumferential locating mechanism (14) and the 3rd inner circumferential locating mechanism (15) can contact with the inner peripheral surface of described straight pipe part (7) simultaneously.
2. straight round pipe fitting positioning device according to claim 1, wherein, the contact part of positioning element described in each and described straight pipe part (7) is point of contact or osculatory, and each point of contact or osculatory are on the same cross section of described straight pipe part (7).
3. straight round pipe fitting positioning device according to claim 1, wherein, the positioning element of described first inner circumferential locating mechanism (13) is can the positioning element of elastic telescopic, thus described first inner circumferential locating mechanism (13) is formed as elasticity inner circumferential locating mechanism; The positioning element of described second inner circumferential locating mechanism (14) is rigidity positioning element, thus this second inner circumferential locating mechanism is formed as rigidity inner circumferential locating mechanism; And described 3rd inner circumferential mechanism (15) is described elasticity inner circumferential locating mechanism or rigidity inner circumferential locating mechanism.
4. straight round pipe fitting positioning device according to claim 3, wherein, described second inner circumferential locating mechanism (14) is arranged as the below being in described first inner circumferential locating mechanism (13), and makes the positioning element of this second inner circumferential locating mechanism (14) be in vertical position.
5. straight round pipe fitting positioning device according to claim 3, wherein, described inner circumferential locating device body (16) comprises cylindrical locating mechanism installation portion (45), the periphery of this locating mechanism installation portion (45) forms described layout circumference along axial at least one section of this locating mechanism installation portion (45), described first inner circumferential locating mechanism (13), second inner circumferential locating mechanism (14) and the 3rd inner circumferential locating mechanism (15) are respectively installed on this locating mechanism installation portion (45) along the circumferential direction of described locating mechanism installation portion (45).
6. straight round pipe fitting positioning device according to claim 5, wherein, described in each, elasticity inner circumferential locating mechanism comprises elastic mechanism supporting base (27), this elastic mechanism supporting base (27) is rotatably mounted with the elastic mechanism roller (23) as corresponding described positioning element, the periphery of described locating mechanism installation portion (45) is formed with elastic mechanism mounting groove, described elastic mechanism supporting base (27) is coupled in described elastic mechanism mounting groove slidably, relative with the loading end (41) of the supporting surface (42) with described elastic mechanism mounting groove that make this elastic mechanism supporting base (27), and described elastic mechanism roller (23) protrudes from the periphery of described locating mechanism installation portion (45), elastic component (28) is supported with between the supporting surface (42) of described elastic mechanism supporting base (27) and the loading end (41) of described elastic mechanism mounting groove.
7. straight round pipe fitting positioning device according to claim 6, wherein, the upper protrusion of supporting surface (42) of described elastic mechanism supporting base (27) is formed with tail rod portion (30), the loading end (41) of described elastic mechanism mounting groove is formed with pilot hole (29), described tail rod portion (30) is slidably matched in described pilot hole (29), and described elastic component (28) wears on described tail rod portion (30) with between the supporting surface (42) being bearing in described elastic mechanism supporting base (27) and the loading end (41) of described elastic mechanism mounting groove, the sidepiece of described elastic mechanism supporting base (27) is formed with limiting stand terrace (43), the sidepiece of described elastic mechanism mounting groove is formed and coordinates limiting stand terrace (44), described limiting stand terrace (43) is relative and spaced with described cooperation limiting stand terrace (44), when described elastic mechanism supporting base (27) is compressed described elastic component (28) and move to predetermined position in described elastic mechanism mounting groove, this limiting stand terrace (43) can contact with each other with the described limiting stand terrace (44) that coordinates.
8. straight round pipe fitting positioning device according to claim 5, wherein, rigidity inner circumferential locating mechanism described in each comprises rigid mechanism supporting base (22) and is pivotally mounted to the rigid mechanism roller (19) on this rigid mechanism supporting base (22), the periphery of described locating mechanism installation portion (45) is formed with corresponding rigid mechanism mounting groove, described rigid mechanism supporting base (22) is fixed in described rigid mechanism mounting groove, and described rigid mechanism roller (19) is protruded from the periphery of described locating mechanism installation portion (45).
9. the straight round pipe fitting positioning device according to any one of claim 5 to 8, wherein, described inner circumferential locating device body (16) also comprises the inductor block installation portion (46) coaxial with described locating mechanism installation portion (45), the external diameter of described inductor block installation portion (46) is less than the external diameter of described locating mechanism installation portion (45), thus described inner circumferential device body (16) is formed as step shaft shape, the periphery of described inductor block installation portion (46) is provided with the quenching inducer (6) coaxial with this inductor block installation portion (46); And one end of described inductor block installation portion (46) is connected with the inductor block coupling device (5) for installing cables (2).
10. straight round pipe fitting positioning device according to claim 9, wherein, described inductor block installation portion (46) upper sleeve through has insulating sleeve (18) and is positioned at the electromagnetic shielding sheet (17) between this insulating sleeve (18) and described locating mechanism installation portion (45), and described quenching inducer (6) is installed on the periphery of described insulating sleeve (18).
11. straight pipe part induction hardening equipments, comprise quenching inducer (6), wherein, this straight pipe part induction hardening equipment also comprises straight round pipe fitting positioning device according to any one of claim 1 to 8, described in each, straight circle pipe fitting positioning device is installed as and fixes relative to described quenching inducer (6) position, and axial direction due separately along this quenching inducer (6) is adjacent or adjacent with this quenching inducer (6), this quenching inducer (6) is with directly to justify pipe fitting positioning device described layout circumference separately described in each coaxial.
12. straight pipe part induction hardening equipments according to claim 11, wherein, described quenching inducer (6) is connected on a described straight round pipe fitting positioning device along the axial direction due of this quenching inducer (6).
13. straight pipe part induction hardening equipments, comprise induction power supply (1), quenching inducer (6), cable (2), the rotary drive mechanism (3) rotated for driving straight pipe part (7) and the pipe fitting bracing or strutting arrangement (12) for supporting described straight pipe part (7) one end, the output terminal of described rotary drive mechanism (3) is provided with for connecting the connection bracing or strutting arrangement (4) supporting described straight pipe part (7) the other end, described rotary drive mechanism (3) and pipe fitting bracing or strutting arrangement (12) the relative position of each other are fixed, one end of described cable (2) is connected to described induction power supply (1), the other end passes the output terminal of described rotary drive mechanism (3) along the axial direction due of described quenching inducer (6) and is connected on described quenching inducer (6), wherein, described straight pipe part induction hardening equipment also comprises straight round pipe fitting positioning device according to any one of claim 1 to 8, described in each, straight circle pipe fitting positioning device is installed as and fixes relative to described quenching inducer (6) position, and along the axial direction due of this quenching inducer (6) and this quenching inducer (6) adjacent or adjacent, this quenching inducer (6) is coaxial with the described layout circumference of circle pipe fitting positioning device straight described in each.
14. straight pipe part induction hardening equipments according to claim 13, wherein, described rotary drive mechanism (3) and pipe fitting bracing or strutting arrangement (12) can along the axial direction due synchronizing movings of described quenching inducer (6) on the machine tool guideway (8) of described straight pipe part induction hardening equipment.
15. straight pipe part induction hardening equipments according to claim 13, wherein, straight round pipe fitting positioning device in described straight pipe part induction hardening equipment is described pipe fitting inner circumferential locating device (10), and described quenching inducer (6) is connected on this pipe fitting inner circumferential locating device (10).
16. straight pipe part induction hardening equipments according to claim 15, wherein, the inner circumferential locating device body (16) of described pipe fitting inner circumferential locating device (10) also comprises the inductor block installation portion (46) coaxial with described locating mechanism installation portion (45), the external diameter of described inductor block installation portion (46) is less than the external diameter of described locating mechanism installation portion (45), thus described inner circumferential device body (16) is formed as step shaft shape, coaxial with this inductor block installation portion (46) on the periphery that described quenching inducer (6) installs described inductor block installation portion (46), and one end of described inductor block installation portion (46) is connected with the inductor block coupling device (5) for installing described cable (2), described inductor block installation portion (46) upper sleeve through has insulating sleeve (18) and is positioned at the electromagnetic shielding sheet (17) between this insulating sleeve (18) and described locating mechanism installation portion (45), and described quenching inducer (6) is installed on the periphery of described insulating sleeve (18).
17. straight pipe part induction hardening equipments according to claim 15, wherein, described straight pipe part induction hardening equipment also comprises pipe fitting periphery locating device (11), and this pipe fitting periphery locating device (11) and described pipe fitting inner circumferential locating device (10) are in same position along the axial direction due of described quenching inducer (6).
18. according to claim 13 to the straight pipe part induction hardening equipment according to any one of 17, wherein, described connection bracing or strutting arrangement (4) is the coupling device that can allow described straight pipe part (7) beat, and the pipe fitting support portion of described pipe fitting bracing or strutting arrangement (12) is resiliency supported portion.
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| CN201210559061.2A CN103014293B (en) | 2012-12-20 | 2012-12-20 | Straight round pipe positioning device and straight round pipe induction quenching equipment |
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| CN104588791B (en) * | 2014-12-03 | 2017-03-22 | 武汉船用机械有限责任公司 | Double oil pipe joint turning machining process and tool |
| CN105236728B (en) * | 2015-10-27 | 2018-07-03 | 南京春辉科技实业有限公司 | A kind of automatic grasping system for cutting stick machine |
| CN109188627A (en) * | 2016-04-14 | 2019-01-11 | 杭州富通通信技术股份有限公司 | Fiber optic cable manufacture method |
| CN108517391A (en) * | 2018-07-06 | 2018-09-11 | 南京工艺装备制造有限公司 | A kind of small deformation quenching technical of the linear guide |
| CN115820997A (en) * | 2022-12-27 | 2023-03-21 | 武汉市整流器研究所 | Electric heating quenching device for pipeline |
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