CN103433285B - Core rod centering device for perforating machine - Google Patents
Core rod centering device for perforating machine Download PDFInfo
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- CN103433285B CN103433285B CN201310342052.2A CN201310342052A CN103433285B CN 103433285 B CN103433285 B CN 103433285B CN 201310342052 A CN201310342052 A CN 201310342052A CN 103433285 B CN103433285 B CN 103433285B
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Abstract
The invention provides a core rod centering device for a perforating machine, and belongs to the technical field of steel pipe processing machinery. The core rod centering device for the perforating machine comprises a base plate, a rack driving mechanism, a gear driving strip, upper and lower gear shafts, a core rod active clamping and releasing mechanism and core rod upper and lower synchronous clamping mechanisms, wherein a pair of wall plates are fixed on the base plate, rack driving device installing fixing surfaces and cover plate fixing surfaces are respectively formed at the upper parts of the wall plates, the rack driving mechanism is fixed with the rack driving device installing fixing surfaces, the upward side of the gear driving strip forms upper gear engaging teeth, the downward side of the gear driving strip forms lower gear engaging teeth, the upper gear shaft is supported between the pair of wall plates, an upper gear is fixed on the upper gear shaft, the lower gear shaft is supported between the pair of wall plates, a lower gear is fixed on the lower gear shaft, the core rod active clamping and releasing mechanism is connected onto the gear driving strip, and the core rod upper and lower synchronous clamping mechanisms are respectively supported between the pair of wall plates. The operation intensity of workers is reduced, and the clamping and releasing effects are ideal. The core rod centering device has good adaptability to the core rod specification change, and the perforating quality of the core rod on steel round rod blanks is ensured.
Description
Technical field
The invention belongs to steel pipe processing equipment technical field, be specifically related to a kind of plug centring means of punch.
Background technology
The function of punch is bored a hole by means of plug (the industry custom claims plug for perforation rod) to the central authorities of the length direction of solid steel pole rod base, obtain hollow hollow billet after perforation, hollow hollow billet is put to the steel pipe that subsequent technique is rolled into required specification such as required wall thickness.Technical information about punch can be seen in, as CN2899987Y(seamless steel pipe conical punching machine in disclosed Chinese patent literature), and for example CN101652196B(punch), etc.
As is known in the industry, need plug (i.e. aforesaid perforation rod) centering in punch is to the process of single solid steel pole rod base perforation, the perforation quality to steel pole rod base is affected to prevent plug whipping, centering comprises clamping and release plug, because because the length of steel pole rod base is longer, therefore the length direction under normal circumstances in the side that the hollow billet corresponding to punch is drawn arranges multiple stage with space state or claims multiple plug centring means, when the hollow billet after being bored a hole by punch marches to first plug centring means just by this first centring means to plug discharge and develop into hollow billet realize tube bank state, here said to hollow billet realize tube bank refer to by plug centring means both ensured hollow billet normally row go out punch, do not show again hollow hollow billet to occur excessively trembleing situation, after whole tediously long steel pole rod base completes perforation, namely after arriving last plug centring means, then all plug centring means all develop into the centering to hollow hollow billet.
As shown in the above description, at plug in the process of steel pole rod base perforation, guarantee that the requirement of the concentricity (corresponding to the center of circle of the excellent base of steel pole all the time) of its rod base with steel pole is very harsh.Again, theoretically, connectivity on the plug centring means of plug centring means to punch of pipe mill possesses skills, and in disclosed Chinese patent literature, the technical information of the plug centring means of pipe mill can be seen in equally, slightly with the centring means as a CN101254510B(rolled steel tube exemplified), the core rod holding device of a CN101758074B(pipe mill) and the plug of plug slew gear of CN102463257A(cold pilger mill automatically fold up device), etc.Be not limited to these patent formula of exemplifying owing to there is complex structure, to the centering effect shortcoming of plug and the logical fraud of the bad adaptability to diameter of mandrel change, thus for plug centering during perforation, do not there is referential essential meaning.
Typically as application for a patent for invention publication No. CN102327897A recommendation has " a kind of tappet centering device for perforating machine ", plug can be felt relieved by this patent application scheme in perforation procedure, specifically can see 0003 section to 0006 section, its description.But there is following shortcoming in this patent application scheme: one, because it needs to be realized with coordinating of a hold-down roller by a pair backing roll with discharging to clamping of plug, and the lifting of a pair backing roll need by online assignment personnel by realizing (can see the 0008 to 0010 section, description) to the manual operation of handwheel, therefore the manipulation strength of operator and workman is large; Its two, owing to adopting manual operation, be therefore difficult to meet technological requirement to the effect of clamping of plug because effect hand-manipulated both from the individual difference of workman and the different of experience and change, affect by the sense of responsibility of workman and even emotional change again; Its three, when needing the specification of the steel pole of perforation rod base to change as diameter, so need to change the plug of dimension, so there is the situation to pre-threading travel change bad adaptability; They are four years old, due under clamping state to plug, unavoidably occur even micro-vast absent-mindedness situation of not wishing to occur between a pair backing roll and the hold-down roller corresponding to a pair backing roll top, thus cause the clamping of plug ineffective, final impact is to the perforation quality of steel pole rod base.
In view of above-mentioned prior art, the applicant does lasting and useful exploration, finally defines technical scheme described below.
Summary of the invention
Task of the present invention be to provide a kind of contribute to automatically clamping plug or discharging and use abandon manual operation and the manipulation strength significantly alleviating workman, be conducive to guarantee and the impact avoided by manual operation factor is used on the ideal clamping of plug and releasing effect, be of value to improving and avoid affecting result of use because plug change and having the plug centring means be convenient to embody and reliably the holding effect under the arm of plug used to the punch ensureing perforation quality on the adaptability and using of pre-threading travel change.
Task of the present invention has been come like this, a kind of plug centring means of punch, comprise a bedplate, this bedplate is fixed with a pair wallboard with the state faced each other, and at this, rack drives device installation stationary plane and cover plate stationary plane is respectively configured with to the top of wallboard; One rack drives mechanism, this rack drives mechanism and described rack drives device are installed stationary plane and are fixed, and correspond between a pair wallboard; One gear drive bar, this gear drive bar is between a pair wallboard, and be connected with described rack drives mechanism, this gear drive bar towards on side be configured with the engaging tooth that cogs, and gear drive bar towards under side be configured with lower gear engaging tooth; One cogs axle and lower tooth wheel shaft, the axle that cogs is being bearing between a pair described wallboard corresponding to above described gear drive bar rotationally, and on this cogs axle, be fixed with one cog, cog and to be meshed with the described engaging tooth that cogs, lower tooth wheel shaft is bearing between a pair described wallboard at the rotated down corresponding to described gear drive bar, and be fixed with a lower gear on this lower tooth wheel shaft, lower gear is meshed with described lower gear engaging tooth; One plug initiatively folds up mechanism, and this plug initiatively folds up mechanism and is connected on described gear drive bar; Synchronously mechanism is folded up under one plug synchronously folding up mechanism and a plug, plug synchronously folding up mechanism corresponding to described plug initiatively folds up above mechanism and is bearing between a pair described wallboard rotationally, and be meshed with described cogging, synchronously fold up mechanism under plug be bearing between a pair wallboard with initiatively folding up the rotated down of mechanism corresponding to plug, and be meshed with described lower gear.
In a specific embodiment of the present invention, described rack drives mechanism comprises acting cylinder holder and acting cylinder, acting cylinder holder corresponds between a pair described wallboard, and with described rack drives device, stationary plane is installed to fix, acting cylinder is fixed on acting cylinder holder, the acting cylinder post of this acting cylinder passes acting cylinder holder and is extended with a connecting screw rod, and described gear drive bar is connected with connecting screw rod.
In another specific embodiment of the present invention, described acting cylinder is oil cylinder or cylinder.
In another specific embodiment of the present invention, offer a connecting screw rod mate with threaded holes on described gear drive bar and towards one end of described connecting screw rod, connecting screw rod is threaded with this connecting screw rod mate with threaded holes.
In another specific embodiment of the present invention, described plug initiatively folds up mechanism and comprises and initiatively fold up roll stand and initiatively Centering Roll, and initiatively fold up roll stand and be fixedly connected with described gear drive bar, active Centering Roll is arranged on rotationally and initiatively folds up in roll stand; Described plug synchronously folds up mechanism and comprise fan-shaped braces axle, upper sector rack, upper fan-shaped braces and upper synchronous Centering Roll, upper fan-shaped braces axle is bearing between a pair described wallboard rotationally, upper sector rack is fixed on fan-shaped braces axle, and be meshed with described cogging, upper fan-shaped braces is fixed on sector rack axle, and upper synchronous Centering Roll is arranged on fan-shaped braces rotationally; Synchronously fold up mechanism under described plug and comprise lower fan-shaped braces axle, lower sector rack, lower fan-shaped braces and lower synchronous Centering Roll, lower fan-shaped braces axle is bearing between a pair described wallboard rotationally, lower sector rack is fixed on lower fan-shaped braces axle, and be meshed with described lower gear, lower fan-shaped braces is fixed on lower fan-shaped braces axle, lower synchronous Centering Roll is arranged on lower fan-shaped braces rotationally, wherein: described active Centering Roll, upper synchronous Centering Roll and lower synchronous Centering Roll form the position relationship of equilateral triangle each other; The position of described upper and lower gear corresponds to each other.
Also have in a specific embodiment of the present invention, the end face of described upper sector rack towards described one end cogged is configured with sector rack engaging tooth, on this, sector gear engaging tooth is meshed with cogging; On the end face of one end of described lower gear, be configured with lower sector rack engaging tooth at described lower sector rack, this lower sector rack engaging tooth is meshed with lower gear.
More of the present invention and in a specific embodiment, between a pair described wallboard, be fixed with a cover plate in the position corresponding to described cover plate stationary plane.
In an of the present invention and then specific embodiment, the structure of described upper and lower gear is mutually the same, and to be formed in the number of teeth of the tooth that cogs on cogging and tooth pitch be identical with the number of teeth of the lower tooth gear teeth be formed on lower gear and tooth pitch.
Of the present invention again more and in a specific embodiment, the number of teeth of described upper sector rack engaging tooth and tooth pitch are equal with the number of teeth of lower sector rack engaging tooth and tooth pitch.
Technical scheme provided by the invention is owing to driving bar by rack drives mechanism driven gear, upper and lower gear is driven while gear drive bar drives plug initiatively to fold up mechanism, and by upper and lower gear drive respectively plug synchronously folds up mechanism and plug under synchronously fold up mechanism, thus can automatically to initiatively folding up mechanism at plug, the upper and lower plug synchronously folded up between mechanism three of plug is clamped, thus without the need to can be alleviated the manipulation strength of workman by manual operation; Due to clamping or discharging and realized by the action of gear driven mechanism plug, thus not only have and desirable fold up effect, and any impact of human factor can not be subject to; Can meet because plug initiatively folds up the upper and lower mechanism that synchronously folds up of mechanism, plug requirement is folded up to the plug of different size, and the concentricity of plug can be ensured all the time, thus there is the good adaptability to pre-threading travel change; Due to the reliable grip effect to plug can be guaranteed, the perforation quality of plug to steel pole rod base thus can be ensured.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structure chart.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is application examples schematic diagram of the present invention.
Detailed description of the invention
In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.
See Fig. 1 and Fig. 2, give the bedplate 1 that a material is metal, and this bedplate 1 please be preferably cuboid.For current location status as shown in Figure 1, shown in the side of the long side direction of bedplate 1 and Fig. 1, shown in the left side of state and the opposite side of long side direction and Fig. 1, the right side of state is respectively fixed with a wallboard 11, that is wallboard 11 has a pair, is fixed on left side and the right side of the length direction of bedplate 1 each other with aspectant state.As shown in Figure 1, respectively one group of wallboard fixing hole 12 is offered with space state in the left side of the long side direction of bedplate 1 and right side, and a wallboard holder 114 is configured with in the bottom of wallboard 11, with the position that one group of wallboard holder hold-down screw 1141 is corresponding to wallboard fixing hole 12, wallboard 11 and bedplate 1 are fixed.
Respectively be configured with a rack drives device on the top of a pair wallboard 11 and install stationary plane 111 and a cover plate stationary plane 112, this rack drives device installs stationary plane 111 and cover plate stationary plane 112 also can be called the fixing milling flat of rack drives device installation and milling flat fixed by cover plate.Owing to maintaining spacing between a pair wallboard 11, and this spacing also can be regarded as wallboard cavity, therefore in order to implement to cover to wallboard cavity, applicant recommends there is a cover plate 113, and this cover plate 113 is fixing with a pair wallboard 11 corresponding to the position of the stationary plane screw hole 1121 be preset on cover plate stationary plane 112 by cover plate hold-down screw 1131.Again, in order to ensure the stability between a pair wallboard 11, therefore illustrate one group of wall-panels supports screw rod 115(the present embodiment spaced apart and have five), wherein one piece of wallboard in one end of each wall-panels supports screw rod 115 and a pair wallboard 11 is fixed, and another piece of wallboard in the other end of each wall-panels supports screw rod 115 and a pair wallboard 11 is fixed, specifically wall-panels supports screw rod 115 is limited through adopting studdle to limit nut 1151 behind the studdle hole 116 on wallboard 11.
Give a rack drives mechanism 2, this rack drives mechanism 2 comprises acting cylinder holder 21 and an acting cylinder 22, acting cylinder holder 21 corresponds between a pair wallboard 11, and adopt acting cylinder seat hold-down screw 211 corresponding to position and a pair wallboard 11 fixing (install on stationary plane 111 at rack drives device and offer screw hole) of aforesaid rack drives device installation stationary plane 111, acting cylinder 22 is fixed on acting cylinder holder 21, the acting cylinder post 221 of this acting cylinder 22 passes acting cylinder holder 21 and is extended with and is namely configured with a connecting screw rod 2211.As shown in Figure 1, aforesaid rack drives device installs stationary plane 111 and cover plate stationary plane 112 tilts, and for the location status of Fig. 1, rack drives device is installed stationary plane 111 and tilted backwards, and cover plate stationary plane 112 turns forward, form the relation being similar to ∧ font each other.
Preferably, aforesaid acting cylinder 22 adopts oil cylinder, if but use cylinder instead, so should be considered as equivalent substitution and still belong to technology contents category disclosed by the invention.
Give a gear drive bar 3, this gear drive bar 3 is threaded towards one end of aforementioned connecting screw rod 2211 with connecting screw rod 2211, this gear drive bar 3 towards on side be configured with the engaging tooth 31 that cogs, and gear drive bar 3 towards under side be configured with lower gear engaging tooth 32, the tooth pitch of upper and lower gears meshing tooth 31,32 is mutually the same, more precisely, the adjacent spacing cogged between engaging tooth 31 is that spacing between adjacent lower gear engaging tooth 32 is consistent.
As shown in Figure 2, a connecting screw rod mate with threaded holes 33 is offered towards the axial central authorities of one end of connecting screw rod 2211 at aforesaid gear drive bar 3, along with connecting screw rod 2211 screws in this connecting screw rod mate with threaded holes 33, thus gear drive bar 3 is realized the connection with connecting screw rod 2211, and locked by the lock nut 22111 be disposed on connecting screw rod 2211.
Please see Fig. 1 by emphasis, illustrate that one cogs axle 4 and once gear shaft 5, the axle 4 that cogs is being driven the position above bar 3 corresponding to aforesaid gears and is being located on wallboard 11 by the bearing housing 42(that cogs) be bearing between a pair wallboard 11 rotationally, on this cogs axle 4, be fixed with one cog 41, this tooth 411 that cogs cogged on 41 is meshed with the aforesaid engaging tooth 31 that cogs.Lower tooth wheel shaft 5 correspond to gear drive bar 3 below position and be located on wallboard 11 by lower gear bearing housing 52() be bearing between a pair wallboard 11 rotationally, this lower tooth wheel shaft 5 is fixed with a lower gear 51, and the lower tooth gear teeth 511 on this lower gear 51 are meshed with aforesaid lower gear engaging tooth 32.
Preferably, the aforesaid axle 4 that cogs arranges the axle spacer 43 that cogs, and lower tooth wheel shaft spacer 53 is set on lower tooth wheel shaft 5, and upper and lower gear 41,51 corresponds to each other.The structure of upper and lower gear 41,51 is mutually the same, and it is all identical with the number of teeth of the lower tooth gear teeth 511 be formed on lower gear 51 and tooth pitch to be formed in the number of teeth of the tooth 411 that cogs cogged on 41 and tooth pitch.
Give a plug and initiatively fold up mechanism 6, this plug initiatively folds up mechanism 6 and comprises one and initiatively fold up roll stand 61 and initiatively Centering Roll 62, initiatively fold up roll stand 61 to be fixedly connected with aforesaid gear drive bar 3 one end away from connecting screw rod 2211, here the alleged concept be fixedly connected with refers to that initiatively folding up roll stand 61 is integrally constituted structure with gear drive bar 3, and initiatively Centering Roll 62 is bearing in rotationally by roll shaft 21 of initiatively feeling relieved and initiatively folds up in roll stand 61.
Give on a plug and synchronously fold up mechanism 7, this plug synchronously folds up mechanism 7 and comprise fan-shaped braces axle 71, upper sector rack 72, upper fan-shaped braces 73 and upper synchronous Centering Roll 74, one end and the other end of upper fan-shaped braces axle 71 are respectively bearing between a pair wallboard 11 by the upper fan-shaped braces bearing housing 711 be arranged on a pair wallboard 11 rotationally, upper sector rack 72 is welded on fan-shaped braces axle 71, and the upper sector rack engaging tooth 721 on this on sector rack 72 is meshed with the aforesaid tooth 411 that cogs cogged on 41, upper fan-shaped braces 73 is fixed on upper fan-shaped braces axle 71 with welding manner equally, upper synchronous Centering Roll 74 is supported rotationally by upper synchronous centering roll shaft 741 and is arranged on shortly on upper fan-shaped braces 73.
Mechanism 8 is synchronously folded up under giving a plug, synchronously fold up mechanism 8 under this plug and comprise lower fan-shaped braces axle 81, lower sector rack 82, lower fan-shaped braces 83 and lower synchronous Centering Roll 84, one end and the other end of lower fan-shaped braces axle 81 are respectively bearing between a pair wallboard 11 by the lower fan-shaped braces bearing housing 811 be arranged on a pair wallboard 11 rotationally, lower sector rack 82 is welded on lower fan-shaped braces axle 81, and the lower sector rack engaging tooth 821 on this lower sector rack 82 is meshed with the lower tooth gear teeth 511 under aforesaid lower gear 51, lower fan-shaped braces 83 is fixed on lower fan-shaped braces axle 81 with welding manner equally, lower synchronous Centering Roll 84 is supported rotationally by lower synchronous centering roll shaft 841 and is arranged on shortly on lower fan-shaped braces 83.
The number of teeth and the tooth pitch that are formed in the upper sector rack engaging tooth 721 on aforesaid upper sector rack 72 are equal with the number of teeth of the lower sector rack engaging tooth 821 be formed on lower sector rack 82 and tooth pitch.
Preferably, a bearing block protecting cover 421 is being screwed corresponding to the aforesaid position cogging bearing housing 42, by this bearing block protecting cover 421 bearing 422 cogged on bearing housing 42 covered and protect, for aforesaid lower gear bearing housing 52, upper fan-shaped braces bearing housing 711 and lower fan-shaped braces bearing housing 811 with example.
Refer to Fig. 3 and composition graphs 1 and Fig. 2, applicant describes operation principle of the present invention, figure 3 illustrates punch 9 and a mandrel trolley 10, between punch 9 and mandrel trolley 10, be provided with the plug centring means that quantity is not limited to illustrate quantity (four overlap) punch of the present invention, and be equipped with a holder protection unit 20 between the plug centring means of adjacent punch.
Under punch 9 is in running order, namely implement in the process of perforation at plug 30 pairs of steel pole rod bases 40 as shown in Figure 3, by the plug centring means of punch of the present invention, plug 30 is felt relieved, specifically: shown by Fig. 1 and Fig. 2, the acting cylinder 22 of rack drives mechanism 2 works, acting cylinder post 221 stretches outside the cylinder body of acting cylinder 22, bar 3 is driven forwards to stretch or claim forwards displacement by connecting screw rod 2211 driven gear of acting cylinder post 221, due to upper, lower gear 41, 51 respectively with upper, lower gear engaging tooth 31, 32 are meshed, therefore when gear drive bar 3 forwards displacement, 41 are cogged to clockwise movement by its drive, drive lower gear 51 to counterclockwise movement simultaneously, again because the upper sector rack engaging tooth 721 plug synchronously folded up on the upper sector rack 72 of mechanism 7 is meshed with the tooth 411 that cogs, and the lower sector rack mesh plate 821 synchronously folding up the lower sector rack 82 of mechanism 8 under plug is meshed with the lower tooth gear teeth 511, thus by sector rack 72 displacement counterclockwise in 41 drives that cog, the displacement clockwise of lower sector rack 82 is driven by lower gear 51.Along with the displacement clockwise of upper sector rack 72, synchronous Centering Roll 74 is made initiatively to fold up the direction motion of the active Centering Roll 62 of mechanism 6 towards plug, simultaneously with the displacement counterclockwise of lower sector rack 82, lower synchronous Centering Roll 84 is moved towards the direction of active Centering Roll 62, that is, initiatively Centering Roll 62, upper and lower synchronous Centering Roll 74,84 three draw in opposite directions and are clamped by plug 30, otherwise with example.It can thus be appreciated that initiatively the cooperation of Centering Roll 62, upper and lower synchronous Centering Roll 74,84 three serves in fact the effect to the bearing that plug 30 limits, plug 30 moves under namely can only feeling relieved under their control.Again, known as shown in Figure 3, when the steel pole rod base 40 completing perforation develops into hollow billet and arrives at the position of the plug centring means of corresponding punch of the present invention (two centring means on the left side of such as Fig. 3 location status), so just centering is implemented to hollow billet (completing the pipe after perforation).And, known as shown in Figure 2, the position of aforesaid active Centering Roll 62, upper synchronous Centering Roll 74 and lower synchronous Centering Roll 84 three forms the position relationship of equilateral triangle, and matching relationship initiatively between Centering Roll 62, upper and lower synchronous Centering Roll 74,84 three is just as the matching relationships gathered with scold out of three fingers of people.
In sum, technical scheme provided by the invention overcomes the shortcoming in prior art, successfully completes invention task, embodies the technique effect referred in the superincumbent technique effect hurdle of applicant objectively.
Claims (8)
1.
a kind of plug centring means of punch, it is characterized in that comprising a bedplate (1), this bedplate (1) is fixed with a pair wallboard (11) with the state faced each other, and at this, rack drives device installation stationary plane (111) and cover plate stationary plane (112) is respectively configured with to the top of wallboard (11), one rack drives mechanism (2), this rack drives mechanism (2) and described rack drives device are installed stationary plane (111) and are fixed, and correspond between a pair wallboard (11), one gear drive bar (3), this gear drive bar (3) is positioned between a pair wallboard (11), and be connected with described rack drives mechanism (2), be configured with the engaging tooth that cogs (31) at this gear drive bar (3) towards upper side, and gear drive bar (3) towards under side be configured with lower gear engaging tooth (32), one cogs axle (4) and lower tooth wheel shaft (5), the axle (4) that cogs is bearing between described a pair wallboard (11) in the top corresponding to described gear drive bar (3) rotationally, and on this axle that cogs (4), be fixed with one cog (41), cog (41) be meshed with the described engaging tooth that cogs (31), lower tooth wheel shaft (5) is bearing between described a pair wallboard (11) at the rotated down corresponding to described gear drive bar (3), and on this lower tooth wheel shaft (5), be fixed with a lower gear (51), lower gear (51) is meshed with described lower gear engaging tooth (32), one plug initiatively folds up mechanism (6), and this plug initiatively folds up mechanism (6) and is connected on described gear drive bar (3), mechanism (8) is synchronously folded up under one plug synchronously folding up mechanism (7) and a plug, plug synchronously folding up mechanism (7) is initiatively folding up mechanism (6) top corresponding to described plug is bearing between described a pair wallboard (11) rotationally, and be meshed with described cog (41), synchronously fold up mechanism (8) under plug be bearing in initiatively folding up the rotated down of mechanism (7) between a pair wallboard (11) corresponding to plug, and be meshed with described lower gear (51), described plug initiatively folds up mechanism (6) and comprises and initiatively fold up roll stand (61) and initiatively Centering Roll (62), initiatively fold up roll stand (61) to be fixedly connected with described gear drive bar (3), initiatively Centering Roll (62) is arranged on rotationally and initiatively folds up in roll stand (61), described plug synchronously folds up mechanism (7) and comprise fan-shaped braces axle (71), upper sector rack (72), upper fan-shaped braces (73) and upper synchronous Centering Roll (74), upper fan-shaped braces axle (71) is bearing between described a pair wallboard (11) rotationally, upper sector rack (72) is fixed on fan-shaped braces axle (71), and be meshed with described cog (41), upper fan-shaped braces (73) is fixed on sector rack axle (71), upper synchronous Centering Roll (74) is arranged on fan-shaped braces (73) rotationally, synchronously fold up mechanism (8) under described plug and comprise lower fan-shaped braces axle (81), lower sector rack (82), lower fan-shaped braces (83) and lower synchronous Centering Roll (84), lower fan-shaped braces axle (81) is bearing between described a pair wallboard (11) rotationally, lower sector rack (82) is fixed on lower fan-shaped braces axle (81), and be meshed with described lower gear (51), lower fan-shaped braces (83) is fixed on lower fan-shaped braces axle (71), lower synchronous Centering Roll (84) is arranged on lower fan-shaped braces (83) rotationally, wherein: described active Centering Roll (62), upper synchronous Centering Roll (74) and lower synchronous Centering Roll (84) form the position relationship of equilateral triangle each other, the position of described upper and lower gear (41,51) corresponds to each other.
2.
the plug centring means of punch according to claim 1, it is characterized in that described rack drives mechanism (2) comprises acting cylinder holder (21) and acting cylinder (22), acting cylinder holder (21) is corresponding between described a pair wallboard (11), and with described rack drives device, stationary plane (111) is installed to fix, acting cylinder (22) is fixed on acting cylinder holder (21), the acting cylinder post (221) of this acting cylinder (22) is through acting cylinder holder (21) and be extended with a connecting screw rod (2211), described gear drive bar (3) is connected with connecting screw rod (2211).
3.
the plug centring means of punch according to claim 2, is characterized in that described acting cylinder (22) is oil cylinder or cylinder.
4.
the plug centring means of punch according to claim 2, it is characterized in that upper at described gear drive bar (3) and towards described connecting screw rod (2211) one end offers a connecting screw rod mate with threaded holes (33), connecting screw rod (2211) is threaded with this connecting screw rod mate with threaded holes (33).
5.
the plug centring means of punch according to claim 1, it is characterized in that being configured with upper sector rack engaging tooth (721) on the end face of described upper sector rack (72) towards the one end of described cog (41), on this, sector rack engaging tooth (721) is meshed with cog (41); On the end face of one end of described lower gear (51), be configured with lower sector rack engaging tooth (821) at described lower sector rack (82), this lower sector rack engaging tooth (821) is meshed with lower gear (51).
6.
the plug centring means of punch according to claim 1, to is characterized in that between described a pair wallboard (11) and to be fixed with a cover plate (113) in the position corresponding to described cover plate stationary plane (112).
7.
the plug centring means of punch according to claim 1 or 5, the structure that it is characterized in that described upper and lower gear (41,51) is mutually the same, and to be formed in the number of teeth of the tooth that cogs (411) cogged on (41) and tooth pitch be identical with the number of teeth of the lower tooth gear teeth (511) be formed on lower gear (51) and tooth pitch.
8.
the plug centring means of punch according to claim 5, it is characterized in that the number of teeth of described upper sector rack engaging tooth (721) and tooth pitch are is equal with the number of teeth of lower sector rack engaging tooth (821) and tooth pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342052.2A CN103433285B (en) | 2013-08-07 | 2013-08-07 | Core rod centering device for perforating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310342052.2A CN103433285B (en) | 2013-08-07 | 2013-08-07 | Core rod centering device for perforating machine |
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| Publication Number | Publication Date |
|---|---|
| CN103433285A CN103433285A (en) | 2013-12-11 |
| CN103433285B true CN103433285B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310342052.2A Expired - Fee Related CN103433285B (en) | 2013-08-07 | 2013-08-07 | Core rod centering device for perforating machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107834A (en) * | 2014-07-23 | 2014-10-22 | 常熟市梅李机械制造有限公司 | Mandrel centering device for piercing mill |
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| CN101518782A (en) * | 2009-03-24 | 2009-09-02 | 烟台鲁宝钢管有限责任公司 | Centering roller with compact structure |
| CN201380186Y (en) * | 2008-12-24 | 2010-01-13 | 洛阳矿山机械工程设计研究院有限责任公司 | Centering roller device |
| CN203417915U (en) * | 2013-08-07 | 2014-02-05 | 常熟市梅李机械制造有限公司 | Core rod centering device for puncher |
-
2013
- 2013-08-07 CN CN201310342052.2A patent/CN103433285B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2031750C1 (en) * | 1992-07-21 | 1995-03-27 | Акционерное общество "Электростальский завод тяжелого машиностроения" | Centering device to tube mill |
| RU2040350C1 (en) * | 1993-07-12 | 1995-07-25 | Акционерное общество "Электростальский завод тяжелого машиностроения" | Three-roller centering apparatus of tube rolling milll |
| CN101254510A (en) * | 2008-04-12 | 2008-09-03 | 太原市通泽成套设备有限公司 | Centering device of roller milling steel tube |
| CN201380186Y (en) * | 2008-12-24 | 2010-01-13 | 洛阳矿山机械工程设计研究院有限责任公司 | Centering roller device |
| CN101518782A (en) * | 2009-03-24 | 2009-09-02 | 烟台鲁宝钢管有限责任公司 | Centering roller with compact structure |
| CN203417915U (en) * | 2013-08-07 | 2014-02-05 | 常熟市梅李机械制造有限公司 | Core rod centering device for puncher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107834A (en) * | 2014-07-23 | 2014-10-22 | 常熟市梅李机械制造有限公司 | Mandrel centering device for piercing mill |
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| CN103433285A (en) | 2013-12-11 |
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