CN219093413U - Clamping and rotating mechanism for seamless steel tube - Google Patents

Abstract

The clamping and rotating mechanism comprises a movable beam, wherein the lower part of the movable beam is provided with a clamping and rotating mechanism, the clamping and rotating mechanism comprises a clamping and rotating bottom plate, a pair of rotating mechanisms, a first clamping roller, a second clamping roller, a pair of first clamping jaws, a second clamping jaw and a clamping and driving mechanism, the first clamping roller and the second clamping roller are arranged between the two rotating mechanisms, a rotating pushing cylinder is arranged on the clamping and rotating bottom plate, one end of a push rod of the rotating pushing cylinder is hinged with the rotating mechanism, a sliding rail is arranged below the movable beam, and a sliding block of the clamping and rotating bottom plate is arranged on the clamping and rotating bottom plate; the rotating mechanism comprises a rotating fixed plate and a sliding plate which slides in an arc shape on the rotating fixed plate, a pair of sliding plate limiting rods are arranged on the rotating fixed plate, arc-shaped sliding grooves are formed in the sliding plate, a pair of sliding sleeves are arranged on the sliding plate limiting rods, two ends of the first clamping roller and the second clamping roller are fixed with the first clamping jaw and the second clamping jaw, sliding plate hinge lugs are arranged on the sliding plate and are used for being hinged with a push rod of the rotary pushing cylinder. The degree of automation and production efficiency of processing seamless steel pipes are improved, and the use safety is good.

Description

Clamping and rotating mechanism for seamless steel tube

Technical Field

The utility model belongs to the technical field of seamless steel tube processing equipment, and particularly relates to a clamping and rotating mechanism for a seamless steel tube.

Background

The seamless steel pipe is a common pipe in daily life, has a very wide application range, has irreplaceable status in terms of manufacturing structural parts and mechanical parts and pipelines or structural parts for conveying fluid, does not need to manually hold the pipe and carry out rotary auxiliary processing procedures in the processing process, for example, before cold drawing the seamless steel pipe, one end of the seamless steel pipe needs to be subjected to tip rolling (i.e. shrinkage) treatment, and can be clamped by a cold drawing trolley after passing through a cold drawing die, and meanwhile, the situation that the end of the seamless steel pipe is deformed and separated from the cold drawing trolley in the cold drawing process is prevented. The steel tube rolling machine has the advantages that the worker is required to hold and rotate the steel tube in the sharpening process to enable the end portion to form the tip portion which is uniformly contracted, machining efficiency is low, and the worker is hurt by accidental swinging of the steel tube, so that the worker is required to be replaced by a mechanism capable of clamping and rotating the steel tube, labor cost can be saved, and hurt to personnel by accidental swinging of the steel tube can be avoided.

In the prior art, as disclosed in Chinese patent application publication No. CN212494972U, the efficient automatic pipe shrinking machine for seamless steel pipes comprises a bottom plate seat, wherein the upper end face of the bottom plate seat is provided with a parallel sliding rail I, the bottom plate seat is provided with a processing frame seat at the front side of the parallel sliding rail, an upper roll shaft and a lower roll shaft are arranged in the processing frame seat in an up-down parallel manner, the surfaces of the upper roll shaft and the lower roll shaft are in contact, a plurality of ring-shaped mold grooves are symmetrically and uniformly arranged on the surfaces of the upper roll shaft and the lower roll shaft, the sections of the ring-shaped mold grooves which are vertically and symmetrically arranged on the surfaces of the upper roll shaft and the lower roll shaft form a pipe shrinking pore canal, the aperture of the pipe shrinking pore canal formed on the upper roll shaft and the lower roll shaft is gradually increased from the middle to two sides, and a pipe shrinking driving motor is fixed on the bottom plate seat. The automatic pipe shrinking machine is characterized in that a simple up-down clamping structure is adopted, and the pipe shrinking machine is moved and fed by a screw rod, so that automatic operation of the pipe shrinking machine cannot be completely realized due to lack of rotation action of a pipe body.

In view of the above, it is necessary to design a seamless steel pipe clamping and rotating mechanism capable of rapidly clamping a steel pipe and rotating around the steel pipe as a center. To this end, the applicant has made an advantageous design, and the technical solutions described below are produced in this context.

Disclosure of Invention

The utility model aims to provide a clamping and rotating mechanism for a seamless steel tube, which is beneficial to improving the clamping structure so that the clamping structure can rotate around the steel tube as the center of a circle to replace workers to process the seamless steel tube, is beneficial to providing the degree of automation for processing the seamless steel tube, improving the production efficiency and avoiding the damage to the workers caused by accidental swinging of the steel tube.

The utility model accomplishes this task, a clamping rotary mechanism of seamless steel tube, including a movable beam, there is a clamping rotary mechanism under the said movable beam slidably, this clamping rotary mechanism includes a clamping rotary base plate that is set up under the movable beam slidably, a pair of rotary mechanisms fixed under the clamping rotary base plate symmetrically, a first clamping roller and a second clamping roller set up between two rotary mechanisms rotatably separately, a pair of first clamping jaws fixed on both ends of the first clamping roller separately, a pair of second clamping jaws fixed on both ends of the second clamping roller separately and a clamping driving mechanism set up between two rotary mechanisms and driving the first clamping roller and second clamping roller to rotate, the said clamping rotary base plate and above locating any rotary mechanism are articulated with a rotary pushing cylinder, there is a rotary pushing cylinder push rod formed on the said rotary pushing cylinder push rod one end extends downward and is articulated with correspondent rotary mechanism, there is a slide rail one below the said movable beam, the said clamping rotary base plate has a pair of slide rails corresponding to a pair of slide blocks set up on a pair of slide blocks; the rotating mechanism comprises a rotating fixed plate and a sliding plate which slides in an arc shape on the rotating fixed plate, a pair of sliding plate limiting rods are fixed on the rotating fixed plate, an arc-shaped sliding groove is formed in the position, corresponding to the sliding plate limiting rods, on the sliding plate, a pair of sliding sleeves are respectively arranged at the positions between the sliding plate limiting rods and the arc-shaped sliding grooves, one end of each sliding plate limiting rod is respectively provided with a sliding plate limiting rod screw rod, a sliding plate limiting rod screw rod yielding hole is respectively formed in the position, corresponding to the sliding plate limiting rod screw rods, on the rotating fixed plate, each sliding plate limiting rod screw rod penetrates through the corresponding sliding plate limiting rod yielding hole and then is respectively connected and fixed with a pair of sliding plate limiting rod nuts, a clamping roller bearing cavity is respectively formed in the position, corresponding to the first clamping roller and the second clamping roller, a clamping roller yielding hole is respectively formed in each clamping roller bearing cavity, a first clamping roller bearing and a second clamping roller bearing are respectively arranged between the first clamping roller and the second clamping roller and the corresponding clamping roller bearing cavities, a clamping roller bearing sealing cover is respectively arranged on the clamping roller bearing cavities, a circle of clamping roller bearing sealing cover screw is arranged around the clamping roller bearing sealing cover, a clamping roller bearing sealing cover fixing screw hole is respectively arranged at the position of the sliding plate corresponding to the clamping roller bearing sealing cover screw, two ends of the first clamping roller and the second clamping roller respectively penetrate through the corresponding clamping roller bearing sealing cover and then are fixed with the first clamping jaw and the second clamping jaw, a first spacer bush and a second spacer bush are respectively arranged between the first clamping jaw and the second clamping roller bearing on the adjacent side and the first clamping roller bearing and the second clamping roller bearing on the adjacent side, one end of the first spacer bush is abutted against one side face of the first clamping jaw, the other end of the first spacer bush is abutted against the corresponding first clamping roller bearing through the corresponding clamping roller bearing sealing cover, one end of the second spacer bush is abutted against one side face of the second clamping jaw, the other end of the second spacer bush is abutted against the corresponding second clamping roller bearing through the corresponding clamping roller bearing sealing cover, a sliding plate hinge lug is formed in the upper right corner of the sliding plate, and the sliding plate hinge lug is used for being hinged with a rotating pushing cylinder push rod of the rotating pushing cylinder.

In a specific embodiment of the present utility model, the first clamping jaw and the second clamping jaw are respectively provided with a first clamping jaw fixing hole and a second clamping jaw fixing hole, the first clamping jaw fixing hole and the second clamping jaw fixing hole are respectively sleeved and connected on the first clamping roller and the second clamping roller in a key way, the upper ends of the first clamping jaw and the second clamping jaw respectively form a first fan-shaped tooth and a first second fan-shaped tooth on opposite side surfaces of the first clamping jaw and the second clamping jaw, the first fan-shaped tooth and the second fan-shaped tooth are respectively coaxially arranged with the first clamping roller and the second clamping roller, the first clamping roller and the second clamping roller are respectively provided with a first clamping roller screw hole and a first clamping roller screw hole in the middle of two end parts of the first clamping roller and the second clamping roller, a first clamping jaw baffle and a second clamping baffle are respectively fixed on the end surfaces of the first clamping roller and the second clamping roller, the outer diameters of the first clamping jaw baffle and the second baffle are respectively larger than the first clamping jaw fixing hole and the second clamping roller, and the first clamping roller are respectively provided with a first clamping pad block and a first clamping groove and a second clamping roller and a first clamping roller and are respectively correspondingly arranged on the opposite side surfaces of the first clamping jaw and the first clamping roller and the second clamping roller.

In another specific embodiment of the present utility model, the front and rear sides of the rotary pushing cylinder are respectively provided with a clamping rotary base plate supporting seat fixed on the clamping rotary base plate, the front and rear sides of the middle part of the rotary pushing cylinder are respectively provided with a rotary pushing cylinder shaft rotatably supported in the clamping rotary base plate supporting seat at the corresponding side, the clamping rotary base plate is provided with a rotary pushing cylinder abdicating opening at the position of the rotary pushing cylinder, the end part of the rotary pushing cylinder push rod is provided with a rotary pushing cylinder push rod hinging seat, and the rotary pushing cylinder push rod hinging seat is hinged and fixed with the corresponding sliding plate hinging lug.

In still another specific embodiment of the present utility model, the clamping driving mechanism includes a clamping cylinder, a pair of clamping cylinder hinge lugs formed on one end of the clamping cylinder, a clamping cylinder push rod formed on one end of the clamping cylinder, and a clamping cylinder push rod hinge seat formed on an end of the clamping cylinder push rod, wherein a first clamping roller boss and a second clamping roller boss are formed at middle portions of the first clamping roller and the second clamping roller respectively, a first clamping push plate is formed on a side of the first clamping roller boss away from the second clamping roller facing upwards, a second clamping push plate is formed on a side of the second clamping roller boss away from the first clamping roller, an upper end of the first clamping push plate is hinged with the clamping cylinder hinge lugs, and an upper end of the second clamping push plate is hinged with the clamping cylinder push rod hinge seat.

In still another specific embodiment of the present utility model, a movement Liang Qigang is fixed in the moving beam through a pair of moving beam cylinder seats, the moving beam cylinder is disposed in the front-rear direction and forms a moving beam cylinder push rod backward, a moving abdication groove is formed on the left side surface of the moving beam, a moving bracket is fixed on the moving Liang Qigang push rod, and one end of the moving bracket extends out of the moving abdication groove and is fixedly connected with the clamping and rotating mechanism after being bent downward.

After the structure is adopted, the utility model has the beneficial effects that: because the structure that the slide plate rotates by taking the steel pipe as the center of a circle and the clamping roller rotates by clamping the steel pipe on the slide plate is adopted, the operation of workers on the seamless steel pipe is effectively replaced, the degree of automation and the production efficiency of processing the seamless steel pipe are improved, personal injury to the workers caused by unexpected swing of the steel pipe is avoided, and the safety of operation in the processing process is ensured.

Drawings

Fig. 1 is a schematic structural view of a clamping and rotating mechanism according to the present utility model.

Fig. 2 is a schematic structural view of the clamping driving mechanism according to the present utility model.

Fig. 3 is a schematic structural diagram of an application example of the present utility model.

Fig. 4 is a side view of fig. 3.

In the figure: 1. the rolling tip mechanism comprises 11 parts of wallboard, 12 parts of power shaft and 121 parts of power shaft gear and 122 parts of power shaft bearing and 13 parts of lower rolling tip roller and 131 parts of lower rolling tip roller eccentric wheel and 1311 parts of lower rolling tip roller groove and 132 parts of lower rolling tip roller gear and 133 parts of transmission gear and 134 parts of lower rolling tip roller bearing and 14 parts of upper rolling tip roller and 141 parts of upper rolling tip roller eccentric wheel and 1411 parts of upper rolling tip roller groove and 142 parts of upper rolling tip roller gear and 143 parts of upper rolling tip roller bearing and 15 parts of rolling tip hole and 16 parts of rolling tip frame. 2. The sharpening driving mechanism, 21, a motor, 22, a first reduction gearbox, 221, a first reduction gearbox output shaft, 23, a second reduction gearbox 231, a second reduction gearbox input shaft, 232, a second reduction gearbox output shaft, 24, a first coupler and 25, and a second coupler; 3. steel pipe moving mechanism, 31, fixed bottom plate, 311, slide rail two, 312, fixed ear, 32, moving bottom plate, 321, moving bottom plate slide block, 322, moving bottom plate cylinder, 3221, moving bottom plate cylinder push rod, 33, moving beam, 331, moving Liang Qigang, 3311, moving beam cylinder seat, 3312, moving Liang Qigang push rod, 332, moving bracket, 333, moving abdicating groove, 334, slide rail one. 4. Clamping rotation mechanism, 41, clamping rotation base plate, 411, clamping rotation base plate slide block, 412, rotation push cylinder relief, 42, rotation mechanism, 421, rotation fixed plate, 4211, slide stop lever screw relief hole, 422, slide, 4221, arc chute, 4222, clamping roller bearing cavity, 4223, clamping roller relief hole, 4224, clamping roller bearing cap fixing screw hole, 4225, slide hinge ear, 423, slide stop lever, 4231, slide stop lever screw, 4232, slide stop lever nut, 424, sliding sleeve, 425, clamping roller bearing cap, 4251, clamping roller bearing cap screw, 43, first clamping roller, 431, first clamping roller bearing, 432, first spacer, 433, first clamping roller screw hole, 434, first clamping roller boss, 4341, first clamping push plate, 44, second clamping roller, 441, second clamping roller bearing, 442, second spacer, third clamping roller bearing, 442, and fourth spacer. 443, second clamp roller screw holes, 444, second clamp roller boss, 4441, second clamp push plate, 45, first clamp jaw, 451, first clamp jaw securing hole, 452, first sector tooth, 453, first clamp jaw spacer, 4531, first clamp tube slot, 454, first clamp jaw stop, 4541, first clamp jaw stop screw, 46, second clamp jaw, 461, second clamp jaw securing hole, 462, second sector tooth, 463, second clamp jaw spacer, 463, second clamp tube slot, 464, second clamp jaw stop, 4641, second clamp jaw stop screw, 47, clamp drive mechanism, 471, clamp cylinder, 472, clamp cylinder hinge lug, 473, clamp cylinder push rod, 474, clamp cylinder push rod hinge seat, 48, rotary push cylinder, 481, clamp rotary base plate support, 4811, rotary push cylinder shaft, 482, rotary push cylinder push rod, 4821. 5. A base; 6. seamless steel pipe.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions or azimuths of up, down, left, right, front and rear are based on the position of fig. 3, and thus should not be construed as limiting the technical solution provided by the present utility model.

Referring to fig. 1 in combination with fig. 3, the present utility model relates to a seamless steel pipe clamping and rotating mechanism, which comprises a moving beam 33, wherein a moving beam cylinder 331 is fixed in the moving beam 33 through a pair of moving beam cylinder bases 3311, the moving Liang Qigang is provided with a moving beam cylinder push rod 3312 along the front-back direction and backwards, a moving abdication groove 333 is provided on the left side surface of the moving beam 33, a moving bracket 332 is fixed on the moving Liang Qigang push rod 3312, and one end of the moving bracket 332 extends out of the moving abdication groove 333 and is fixedly connected with the clamping and rotating mechanism 4 after being bent downwards. The clamping and rotating mechanism 4 comprises a clamping and rotating base plate 41, a pair of rotating mechanisms 42, a first clamping roller 43, a second clamping roller 44, a pair of first clamping jaws 45, a pair of second clamping jaws 46 and a clamping driving mechanism 47, wherein the clamping and rotating base plate 41 is arranged below the moving beam 33, the rotating mechanisms 42 are symmetrically fixed below the clamping and rotating base plate 41 in a front-back mode, the first clamping rollers 43 and the second clamping rollers 44 are respectively arranged between the two rotating mechanisms 42 in a rotating mode, the first clamping jaws 45 are respectively fixed at two ends of the first clamping rollers 43, the second clamping jaws 46 are respectively fixed at two ends of the second clamping rollers 44, the clamping driving mechanism 47 is arranged between the two rotating mechanisms 42 and drives the first clamping rollers 43 and the second clamping rollers 44 to rotate, a rotating pushing cylinder 48 is hinged to the clamping and rotating base plate 41 and is positioned above any rotating mechanism 42, one end of the rotating pushing cylinder pushing rod 482 extends downwards and is hinged to the corresponding rotating mechanism 42, a sliding rail one 334 is fixed below the moving beam 33, and a pair of sliding blocks 411 are arranged on the clamping and sliding base plate 41 is arranged at a position corresponding to the sliding rail one 334; the front rotating mechanism 42 comprises a rotating fixed plate 421 and a sliding plate 422 which is in arc sliding on the rotating fixed plate 421, a pair of sliding plate limiting rods 423 are fixedly arranged on the rotating fixed plate 421, an arc sliding groove 4221 is arranged at the position corresponding to the sliding plate limiting rods 423 on the sliding plate 422, a pair of sliding sleeves 424 are respectively arranged at the position between the sliding plate limiting rods 423 and the arc sliding grooves 4221, one ends of the sliding plate limiting rods 423 respectively form a sliding plate limiting rod screw 4231, a first sliding plate limiting rod screw yielding hole 4211 is respectively arranged at the position corresponding to the sliding plate limiting rod screw 4231 on the rotating fixed plate 421, the sliding plate limiting rod screw 4231 penetrates through the corresponding sliding plate limiting rod screw yielding hole 4211 and is respectively connected and fixed with a pair of sliding plate limiting rod nuts 4232, a first clamping roller bearing cavity 4222 is respectively arranged at the position corresponding to the first clamping roller 43 and the second clamping roller bearing cavity 4222, a pair of clamping roller yielding holes 4223 are respectively arranged in the clamping roller bearing cavities 4222, a first clamping roller 43 and a second clamping roller 4244 are respectively provided with a first clamping roller 42425 and a second clamping roller 4251 respectively corresponding to the first clamping roller 4251 and a second clamping roller 4246, a sealing roller 4251 is respectively arranged at the two ends of the first clamping roller 4241 and the second clamping roller 4244 respectively, a sealing roller 4246 is respectively provided with a sealing roller 4251 respectively, a sealing roller 4246 is respectively provided with a sealing roller 4246, and a sealing roller 4242 is respectively provided with a sealing roller 4242 and a sealing roller 4242 is respectively, and a sealing cap is respectively provided with a sealing cap. A first spacer 432 and a second spacer 442 are respectively disposed between the first clamping jaw 45 and the second clamping jaw 46 and the first clamping roller bearing 431 and the second clamping roller bearing 441 on the adjacent sides, the first spacer 432 and the second spacer 442 are respectively sleeved on the first clamping roller 43 and the second clamping roller 44, one end of the first spacer 432 abuts against one side surface of the first clamping jaw 45, the other end of the first spacer 432 abuts against the corresponding first clamping roller bearing 431 through the corresponding clamping roller bearing cover 425, one end of the second spacer 442 abuts against one side surface of the second clamping jaw 46, the other end of the second spacer 442 abuts against the corresponding second clamping roller bearing 441 through the corresponding clamping roller bearing cover 425, a slide hinge ear 4225 is formed at the upper right corner of the slide 422, and the slide hinge ear 4225 is used for being hinged with the rotary pushing cylinder push rod 482 of the rotary pushing cylinder 48.

Referring to fig. 1, a first jaw fixing hole 451 and a second jaw fixing hole 461 are respectively formed in the first jaw 45 and the second jaw 46, the first jaw fixing hole 451 and the second jaw fixing hole 461 are respectively sleeved and connected to the first clamping roller 43 and the second clamping roller 44 in a key manner, a first fan-shaped tooth 452 and a second fan-shaped tooth 462 are respectively formed on opposite side surfaces of the first jaw 45 and the second jaw 46, the first fan-shaped tooth 452 and the second fan-shaped tooth 462 are respectively coaxially arranged with the first clamping roller 43 and the second clamping roller 44, the first fan-shaped tooth 452 and the second fan-shaped tooth 462 are respectively meshed with each other, a first clamping roller screw 433 and a second clamping roller screw 443 are respectively formed in the middle of two end parts of the first clamping roller 43 and the second clamping roller 44, a first baffle 454 and a second baffle 464 are respectively fixed on end surfaces of the first clamping roller 43 and the second clamping roller 44, the first baffle 454 and the second baffle 464 are respectively fixed on opposite side surfaces of the first clamping roller 45 and the second clamping roller 463, the first side surfaces of the first clamping roller 45 and the second clamping roller 463 are respectively correspondingly provided with a first clamping screw 433 and a second clamping screw 463, and a first clamping screw 463 is respectively fixed on opposite side surfaces of the first clamping roller 45 and the first side surface of the first clamping roller 45 and the second clamping roller 463, and the first clamping roller 45 are correspondingly matched with a first clamping screw 45 and a first clamping screw is formed.

Further, a clamping rotating base plate support base 481 fixed on the clamping rotating base 41 is provided on the front and rear sides of the rotating pushing cylinder 48, a rotating pushing cylinder shaft 4811 rotatably supported in the clamping rotating base plate support base 481 on the corresponding side is formed on the front and rear sides of the middle of the rotating pushing cylinder 48, a rotating pushing cylinder relief hole 412 is provided on the rotating pushing cylinder 48 of the clamping rotating base 41, a rotating pushing cylinder push rod hinge seat 4821 is provided on the end of the rotating pushing cylinder push rod 482, and the rotating pushing cylinder push rod hinge seat 4821 is hinged and fixed to the corresponding sliding plate hinge lug 4225.

Referring to fig. 2, the clamping driving mechanism 47 includes a clamping cylinder 471, a pair of clamping cylinder hinge lugs 472 formed at one end of the clamping cylinder 471, a clamping cylinder push rod 473 formed at one end of the clamping cylinder 471, and a clamping cylinder push rod hinge seat 474 formed at an end of the clamping cylinder push rod 473, wherein a first clamping roller boss 434 and a second clamping roller boss 444 are respectively formed at middle portions of the first clamping roller 43 and the second clamping roller 44, a first clamping push plate 4341 is formed on a side of the first clamping roller boss 434 away from the second clamping roller 44 facing upward, a second clamping push plate 4441 is formed on a side of the second clamping roller boss 444 away from the first clamping roller 43, an upper end of the first clamping push plate 4341 is hinged to the clamping cylinder hinge lug 472, and an upper end of the second clamping push plate 4441 is hinged to the clamping cylinder push rod hinge seat 474.

Referring to fig. 3 and 4, the aforementioned traveling beam 33 and the holding and rotating mechanism 4 are applied to a seamless steel tube rolling mill including a rolling mill 1 provided on a base 5, respectively, a rolling mill driving mechanism 2 in driving connection with the rolling mill 1, a steel tube traveling mechanism 3 provided above the rolling mill 1, the aforementioned holding and rotating mechanism 4 being fixed above the steel tube traveling mechanism 3 by the aforementioned traveling beam 33, the rolling mill 1 including a pair of wall plates 11, a power shaft 12 rotatably provided between the two wall plates 11, a lower rolling mill roller 13 rotatably provided between the two wall plates 11 and above the power shaft 12, and an upper rolling mill roller 14 rotatably provided between the two wall plates 11 and above the lower rolling mill roller 13, one end of the power shaft 12 being in driving connection with one end of the lower rolling mill roller 13, the other end of the lower rolling mill roller 13 being in driving connection with one end of the upper rolling mill roller 14, the other end of the power shaft 12 is connected with the sharpening driving mechanism 2 in a transmission way, the steel tube moving mechanism 3 comprises a fixed bottom plate 31 fixed above the two wall plates 11, a moving bottom plate 32 arranged on the fixed bottom plate 31 in a left-right sliding way, one end of the moving beam 33 is fixed on the moving bottom plate 32, a lower sharpening roller eccentric wheel 131 and an upper sharpening roller eccentric wheel 141 are formed on the lower sharpening roller 13 and the upper sharpening roller 14, a group of lower sharpening roller grooves 1311 and a group of upper sharpening roller grooves 1411 with different diameters are respectively arranged on the lower sharpening roller eccentric wheel 131 and the upper sharpening roller eccentric wheel 141 at intervals, the diameters of the lower sharpening roller grooves 1311 and the upper sharpening roller grooves 1411 which are opposite are the same and mutually matched form a sharpening hole 15, a pair of slide rails two 311 are fixed on the fixed bottom plate 31 along the left-right direction, a fixed lug 312 is formed on the upper left side of the fixed bottom plate 31, a pair of movable bottom plate sliding blocks 321 are respectively arranged below the movable bottom plate 32 at positions corresponding to the second sliding rails 311, a movable bottom plate cylinder 322 is fixed at the positions, located between the second sliding rails 311, below the movable bottom plate 32, of the movable bottom plate cylinder 322, a movable bottom plate cylinder push rod 3221 is formed at one end of the movable bottom plate cylinder 322, and the movable bottom plate cylinder push rod 3221 is hinged with the fixed lug 312.

Referring to fig. 3 in combination with fig. 4, the wall boards 11 are respectively and oppositely arranged on the tip rolling frame 16, the tip rolling frame 16 is fixed on the base 5, two ends of the power shaft 12 respectively extend out of the wall boards 11 at two sides and are respectively and rotatably supported with the wall boards 11 through power shaft bearings 122, two ends of the lower tip rolling roller 13 respectively extend out of the wall boards 11 at two sides and are respectively and rotatably supported with the wall boards 11 through lower tip rolling roller bearings 134, two ends of the upper tip rolling roller 14 respectively extend out of the wall boards 11 at two sides and are respectively and rotatably supported with the wall boards 11 through upper tip rolling roller bearings 143, a power shaft gear 121 is arranged at one end of the power shaft 12, a transmission gear 133 meshed with the power shaft gear 121 is arranged at one end of the lower tip rolling roller 13, a lower tip rolling roller gear 132 is arranged at the other end of the lower tip rolling roller 13, and an upper tip rolling roller gear 142 meshed with the lower tip rolling roller gear 132 is arranged at one end of the upper tip rolling roller 14. The sharpening driving mechanism 2 comprises a motor 21, a first reduction gearbox 22 and a second reduction gearbox 23, wherein the motor 21 is fixed on the first reduction gearbox 22 and is in transmission connection with each other, a first reduction gearbox output shaft 221 is formed on the first reduction gearbox 22, a second reduction gearbox input shaft 231 and a second reduction gearbox output shaft 232 are respectively formed at two ends of the second reduction gearbox 23, the first reduction gearbox 22 and the second reduction gearbox 23 are respectively fixed on the base 5, the first reduction gearbox output shaft 221 and the second reduction gearbox input shaft 231 are in transmission connection through a first coupler 24, and the second reduction gearbox output shaft 232 is in transmission connection with the other end of the power shaft 12 through a second coupler 25.

Referring to fig. 3 and 4 in conjunction with fig. 1 and 2, the working principle of the present utility model will be described: first, the tapered hole 15 is selected to be suitable according to the diameter of the seamless steel pipe 6, specifically: the movable bottom plate cylinder 322 is driven to enable the movable bottom plate 32, the movable beam 33 and the clamping rotary mechanism 4 to slide left and right on the fixed bottom plate 31, the seamless steel tube 6 clamped by the clamping rotary mechanism 4 can be just aligned with the adaptive sharpening hole 15, the motor 21 is started to circularly rotate in the forward and reverse directions, the forward and reverse rotation time length is regulated according to the sharpening length, the motor 21 sequentially drives the first reduction gearbox 22, the second reduction gearbox 23 and the power shaft 12 to rotate, the power shaft 12 drives the transmission gear 133 and the lower sharpening roller 13 to rotate through the power shaft gear 121, the lower sharpening roller 13 drives the upper sharpening roller gear 142 and the upper sharpening roller 14 to synchronously rotate through the lower sharpening roller gear 132, so that the lower and upper sharpening roller eccentric wheels 131 and 141 are rotated synchronously and the ends of the seamless steel pipe 6 are crushed by the lower and upper sharpening roller grooves 1311 and 1411, and during the operation of the motor 21, the movement Liang Qigang of the movement Liang Qigang 331 pushes the push rod 3312 backward to slide the clamping rotation mechanism 4 backward along the moving beam 33 to a position to clamp the seamless steel pipe 6, the clamping cylinder push rod 473 of the clamping cylinder 471 is in a contracted state to rotate the first and second clamping rollers 43 and 44 and the corresponding first and second jaws 45 and 46 are in an opened state, the pipe feeder feeds the seamless steel pipe 6 to be processed between the first and second jaws 45 and 46, drives the clamping cylinder 471 to push the clamping cylinder push rod 473 out, the first and second clamping rollers 43 and 44 are rotated, the first clamping jaw 45 and the second clamping jaw 46 clamp each other and clamp the seamless steel tube 6 in the first clamping groove 4531 and the second clamping groove 4631 under the rotation action of the first clamping roller 43 and the second clamping roller 44 and the transmission action of the first sector tooth 452 and the second sector tooth 462, then the moving Liang Qigang push rod 3312 of the moving Liang Qigang 331 contracts forward to enable the holding rotating mechanism 4 and the clamped seamless steel tube 6 to be fed forward into the sharpening hole 15 for the first time to finish the first rolling, then the moving Liang Qigang push rod 3312 of the moving Liang Qigang 331 pushes backward to enable the holding rotating mechanism 4 and the clamped seamless steel tube 6 to be withdrawn from the sharpening hole 15, simultaneously the rotation of the rotating pushing cylinder 48 pushes the cylinder push rod 482 to push down to enable the first clamping roller 43, the second clamping roller 44, the first clamping jaw 45, the second clamping jaw 46 and the seamless steel tube 6 on the sliding plate 422 to rotate on the rotating fixing plate 421 around the seamless steel tube 6, after the rotation is completed, the push rod 3312 of the movement Liang Qigang of the movement Liang Qigang 331 is retracted forward again, so that the clamped rotating mechanism 4 and the clamped seamless steel tube 6 are sent forward again into the sharpening hole 15 to complete the second rolling, finally the push rod 3312 of the movement Liang Qigang is pushed out backward, so that the clamped rotating mechanism 4 and the clamped seamless steel tube 6 are withdrawn from the sharpening hole 15, the push rod 473 of the clamping cylinder 471 is retracted, the first clamping roller 43 and the second clamping roller 44 are rotated, the corresponding first clamping jaw 45 and second clamping jaw 46 are opened to allow the sharpened seamless steel tube 6 to fall from the first clamping groove 4531 and the second clamping groove 4631, the tube feeding machine sends the seamless steel tube 6 to be processed into the first clamping jaw 45 and the second clamping jaw 46 again, and so on, the sharpening process is repeated, thus, the whole automatic pipe clamping, rotating and reciprocating pipe conveying sharpening process is completed, the labor cost is greatly saved, and the production safety performance is greatly improved.

Claims (5)

1. A seamless steel pipe clamping and rotating mechanism comprising a movable beam (33), characterized in that: a clamping and rotating mechanism (4) is arranged below the moving beam (33) in a sliding manner, the clamping and rotating mechanism (4) comprises a clamping and rotating bottom plate (41) arranged below the moving beam (33), a pair of rotating mechanisms (42) symmetrically fixed below the clamping and rotating bottom plate (41), a first clamping roller (43) and a second clamping roller (44) respectively arranged between the two rotating mechanisms (42) in a rotating manner, a pair of first clamping jaws (45) respectively fixed at two ends of the first clamping roller (43), a pair of second clamping jaws (46) respectively fixed at two ends of the second clamping roller (44) and a clamping and driving mechanism (47) arranged between the two rotating mechanisms (42) and driving the first clamping roller (43) and the second clamping roller (44) to rotate, a rotating pushing cylinder (48) is hinged above any rotating mechanism (42) on the clamping and rotating bottom plate (41), a rotating pushing push rod (482) is formed on the rotating pushing cylinder (48), the rotating pushing rod (482) is hinged with a sliding rail (33) which is hinged at one end of the lower part of the moving beam (334) correspondingly, a pair of clamping rotating bottom plate sliding blocks (411) sliding on the first sliding rail (334) are arranged at positions, corresponding to the first sliding rail (334), on the clamping rotating bottom plate (41); the rotating mechanism (42) comprises a rotating fixed plate (421) and a sliding plate (422) which slides in an arc shape on the rotating fixed plate (421), a pair of sliding plate limiting rods (423) are fixed on the rotating fixed plate (421), an arc-shaped sliding groove (4221) is formed in the position, corresponding to the sliding plate limiting rods (423), on the sliding plate limiting rods (423) and between the sliding plate limiting rods (423) and the arc-shaped sliding grooves (4221), a pair of sliding sleeves (424) are respectively arranged at the positions, corresponding to the first clamping roller (43) and the second clamping roller (44), of the sliding plate limiting rods (423), a sliding plate limiting rod screw (4231) is respectively provided with a sliding plate limiting rod yielding hole (4211) at the position, corresponding to the sliding plate limiting rod screw (4231), after the sliding plate limiting rod screw (4231) passes through the corresponding sliding plate limiting rod screw rod yielding holes (4211), the sliding plate limiting rods (4232) are respectively connected and fixed with a pair of sliding plate limiting rod nuts (4232), the sliding plate limiting rods (422) are respectively provided with a clamping roller (4222) at the positions corresponding to the first clamping roller (43) and the second clamping roller (44), a bearing (4222) is respectively provided with a clamping roller (4222), a first clamping roller bearing (431) and a second clamping roller bearing (441) are respectively arranged between the first clamping roller (43) and the second clamping roller (44) and the corresponding clamping roller bearing cavity (4222), a clamping roller bearing seal cover (425) is respectively arranged on the clamping roller bearing cavity (4222), a circle of clamping roller bearing seal cover screw (4251) is arranged around the clamping roller bearing seal cover (425), a clamping roller bearing seal cover fixing screw hole (4224) is respectively arranged at the position of the sliding plate (422) corresponding to the clamping roller bearing seal cover screw (4251), two ends of the first clamping roller (43) and the second clamping roller (44) respectively penetrate through the corresponding clamping roller bearing seal cover (425) and then are fixed with the first clamping jaw (45) and the second clamping jaw (46), a first sleeve (432) and a second sleeve (432) are respectively arranged between the first clamping roller bearing (431) and the second clamping roller bearing (441) on the adjacent side, the first clamping jaw (45) and the second clamping jaw (46) respectively abut against the first clamping roller (442) and the second clamping roller (43) and the second sleeve (442) respectively, one end of the second spacer bush (442) abuts against one side face of the second clamping jaw (46), the other end of the second spacer bush passes through the corresponding clamping roller bearing sealing cover (425) and abuts against the corresponding second clamping roller bearing (441), a sliding plate hinge lug (4225) is formed at the upper right corner of the sliding plate (422), and the sliding plate hinge lug (4225) is used for being hinged with a rotary pushing cylinder push rod (482) of the rotary pushing cylinder (48).

2. A seamless steel pipe clamping and rotating mechanism according to claim 1, wherein: the first clamping jaw (45) and the second clamping jaw (46) are respectively provided with a first clamping jaw fixing hole (451) and a second clamping jaw fixing hole (461), the first clamping jaw fixing hole (451) and the second clamping jaw fixing hole (461) are respectively sleeved and connected on the first clamping roller (43) and the second clamping roller (44) in a key way, the upper ends of the first clamping jaw (45) and the second clamping jaw (46) respectively form a first fan-shaped tooth (452) and a second fan-shaped tooth (462) on one side surface opposite to each other, the first fan-shaped tooth (452) and the second fan-shaped tooth (462) are respectively coaxially arranged with the first clamping roller (43) and the second clamping roller (44), the first fan-shaped tooth (452) and the second fan-shaped tooth (462) are mutually meshed, a first clamping roller screw hole (43) and a second clamping roller (443) are respectively arranged in the middle of two end parts of the first clamping roller (43) and the second clamping roller (44), the first clamping roller (43) and the second clamping roller (433) are respectively provided with a first baffle plate (443) and a second baffle plate (433), the outer diameters of the first clamping jaw baffle plate (454) and the second clamping jaw baffle plate (464) are respectively larger than the apertures of the first clamping jaw fixing hole (451) and the second clamping jaw fixing hole (461), the first clamping jaw baffle plate screw (4541) and the second clamping jaw baffle plate screw (4641) are respectively fixedly connected with a corresponding first clamping roller screw hole (433) and a corresponding second clamping roller screw hole (443), a first clamping jaw cushion block (453) and a second clamping jaw cushion block (463) are respectively arranged at the lower ends of the first clamping jaw (45) and the second clamping jaw (46) on opposite side surfaces, and a first pipe clamping groove (4531) and a second pipe clamping groove (463) which are mutually matched are respectively formed on one side surfaces of the first clamping jaw cushion block (453) and the second clamping jaw cushion block (463) opposite to each other.

3. A seamless steel pipe clamping and rotating mechanism according to claim 1, wherein: the rotary pushing device is characterized in that a clamping rotary base plate supporting seat (481) fixed on the clamping rotary base plate (41) is respectively arranged on the front side and the rear side of the rotary pushing cylinder (48), a rotary pushing cylinder shaft (4811) rotatably supported in the clamping rotary base plate supporting seat (481) on the corresponding side is respectively formed on the front side and the rear side of the middle of the rotary pushing cylinder (48), a rotary pushing cylinder yielding port (412) is formed in the position of the rotary pushing cylinder (48) on the clamping rotary base plate (41), a rotary pushing cylinder pushing rod hinging seat (4821) is arranged at the end part of the rotary pushing cylinder pushing rod (482), and the rotary pushing cylinder pushing rod hinging seat (4821) is hinged and fixed with a corresponding sliding plate hinging lug (4225).

4. A seamless steel pipe clamping and rotating mechanism according to claim 1, wherein: the clamping driving mechanism (47) comprises a clamping cylinder (471), a pair of clamping cylinder hinging lugs (472) formed at one end of the clamping cylinder (471), a clamping cylinder push rod (473) formed at one end of the clamping cylinder (471) and a clamping cylinder push rod hinging seat (474) formed at the end of the clamping cylinder push rod (473), a first clamping roller boss (434) and a second clamping roller boss (444) are respectively formed at the middle parts of the first clamping roller (43) and the second clamping roller (44), a first clamping push plate (4341) is formed on one side, far away from the second clamping roller (44), of the first clamping roller boss (434), a second clamping push plate (4441) is formed on one side, far away from the first clamping roller (43), of the second clamping roller boss (444), the upper end of the first clamping push plate (4341) is mutually hinged with the clamping cylinder hinging lugs (472), and the upper end of the second clamping push plate (4441) is mutually hinged with the clamping cylinder push rod hinging seat (474).

5. A seamless steel pipe clamping and rotating mechanism according to claim 1, wherein: a moving Liang Qigang (331) is fixed in the moving beam (33) through a pair of moving beam cylinder seats (3311), the moving Liang Qigang (331) is arranged along the front-back direction and is backwards provided with a moving beam cylinder push rod (3312), a moving yielding groove (333) is formed in the left side surface of the moving beam (33), a moving bracket (332) is fixed on the moving Liang Qigang push rod (3312), and one end of the moving bracket (332) extends out of the moving yielding groove (333) and is fixedly connected with the clamping rotating mechanism (4) after being bent downwards.

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