CN212239957U - Multi-shaft screwing machine for rotary table and slewing bearing bolt - Google Patents

Abstract

The application discloses revolving stage and slewing bearing bolt multiaxis screwing up machine, including base and sliding connection in the hoist jacking platform of base, rotate and connect in the rotary supporting platform of base, set up in the revolving stage supporting platform at rotary supporting platform center, the hoist jacking platform passes through adjusting device portable connection in the base, rotary supporting platform includes the revolving stage and sets up in the tightening device of the support bracket of revolving stage and two symmetrical settings through first elevating gear liftable, the support bracket passes through the bracing piece and sets up directly over the revolving stage, tightening device includes biax displacement axle box, second elevating gear and radial adjusting device, the revolving stage supporting platform includes the revolving stage back shaft and is fixed in the revolving stage back shaft top and supports the head, it is equipped with to support the bracket cover the revolving stage back shaft. The bolt multi-shaft tightening machine can automatically tighten bolts between the rotary table and the slewing bearing, and improves the working efficiency.

Description

Multi-shaft screwing machine for rotary table and slewing bearing bolt

Technical Field

The application relates to the field of automatic machinery, in particular to a multi-shaft tightening machine for a rotary table and a slewing bearing bolt.

Background

The turntable is used as a large structural member of the wheel crane, has the characteristics of more parts, fussy working procedures, long assembly time and the like, particularly the assembly of the slewing bearing is an important link in the assembly process of the turntable, and how to ensure that the assembly is efficient, reliable and safe is a problem which is urgently needed to be solved. At present, the assembly of a rotary table and a slewing bearing is mainly to fix the slewing bearing and then hoist the rotary table by a crane to be butted with the slewing bearing; the rotary support is butted by the rotary table, which is equivalent to the butt joint of a large workpiece and a small workpiece, the rotary support has a plurality of connecting holes and certain direction requirements, so that the whole butt joint process is very difficult, in addition, the bolt tightening after the butt joint is finished is also very inconvenient, and the efficiency, the reliability and the safety are very difficult to ensure; or the assembly is realized through multiple times of overturning of the rotary table, so that potential safety hazards exist, and the rotary table is easy to collide with and scratch and the like. Improvements are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a revolving stage and slewing bearing bolt multi-shaft tightening machine to overcome not enough among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme:

the embodiment of the application discloses revolving stage and slewing bearing bolt multiaxis screwing machine, including base and sliding connection in the hoist jacking platform of base, rotate and connect in the rotary supporting platform of base, set up in the rotary supporting platform at rotary supporting platform center, the hoist jacking platform passes through adjusting device portable connection in the base, rotary supporting platform includes the revolving stage and sets up in the tightening means that the support bracket of revolving stage and two symmetries set up through first elevating gear liftable, the support bracket sets up directly over the revolving stage through the bracing piece, tightening means includes biax displacement axle box, second elevating gear and radial adjusting device, rotary supporting platform includes the revolving stage back shaft and is fixed in the revolving stage back shaft top and supports the head, it is equipped with to support the bracket cover the revolving stage back shaft.

Preferably, in the multi-shaft screwing machine for the turntable and the slewing bearing bolt, the hoisting jacking table comprises a box body fixed on the adjusting device and a hoisting jacking device arranged at the top end of the box body, and the hoisting jacking device comprises a first driving motor and a first worm gear lifter which are in driving connection and a top plate arranged at the top end of the first worm gear lifter.

Preferably, in the above multi-shaft screwing machine for a turntable and a slewing bearing bolt, the adjusting device includes a second driving motor and a first lead screw, which are in driving connection, a nut of the first lead screw is fixed to a bottom end of a box body, and the box body is slidably connected to the base through a first guide rail.

Preferably, in the multi-shaft bolt tightening machine with a turntable and a slewing bearing described above, the turntable includes a rotating bracket and a third driving motor, an output end of the third driving motor is provided with a first gear, the base is provided with a bracket slewing bearing engaged with the first gear, and an inner ring of the bracket slewing bearing is fixed to the rotating bracket.

Preferably, in the multi-shaft bolt tightening machine for a turntable and a slewing bearing, the support bracket includes a first mounting ring and a second mounting ring which are concentrically arranged, four mounting plates are protruded outwards from the bottom of the second mounting ring, the four mounting plates are arranged in an equidistant circumferential array, the second mounting ring and the mounting plates are respectively fixedly connected to the outer wall of the first mounting ring through connecting rods, and the first mounting ring is sleeved on the turntable support shaft.

Preferably, in foretell revolving stage and slewing bearing bolt multi-shaft tightening machine, the support bracket still includes centering mechanism, centering mechanism includes rotatable third gear, is fixed in the transmission case of mounting panel respectively and slides the slider that sets up on the transmission case, the top of second collar is fixed with the third collar, the third gear is rotatable to be installed in the third collar through first bearing, the one end that the transmission case is close to the second collar is protruding the fourth gear that has engaged with the third gear of stretching respectively, one of them the one end that the transmission case deviates from the fourth gear is connected with fourth driving motor, the slider is close to the one end top of fourth collar and is equipped with the gyro wheel, the one end top that the slider deviates from the fourth collar is equipped with universal ball bearing.

Preferably, in the multi-shaft screwing machine for the turntable and the slewing bearing bolt, the first lifting device comprises a fifth driving motor, a second worm gear and worm lifter and a lifting frame which are connected in a driving manner in sequence, the second worm gear lifter is fixed on the base through a mounting frame, the tail end of the turntable supporting shaft is fixed on the mounting frame, the lifting frame comprises a first lifting plate and a second lifting plate which are oppositely arranged through a guide rod, the guide rod penetrates through the mounting frame in a sliding manner, the first lifting plate is connected with a second worm and gear lifter in a driving way, the top end of the second lifting plate is sequentially provided with a first bush, a second bearing and a second bush from bottom to top, the revolving stage back shaft is located to the equal sliding sleeve of first bush, second bearing and second bush, the bottom cover of first collar is located the top of second bush, the outer wall cover of first bush is equipped with self-aligning bearing.

Preferably, in the multi-shaft tightening machine for the rotary table and the slewing bearing bolt, the dual-shaft variable-pitch axle box comprises an axle box body, two vertical tightening shafts and a distance adjusting device for adjusting the distance between the two tightening shafts, the axle box body is slidably connected to the rotary table through the radial adjusting device, the tightening shafts are slidably fixed to the axle box body and are in driving connection with the distance adjusting device, the distance adjusting device comprises a sixth driving motor and a distance adjusting screw which are in driving connection, and the two tightening shafts are respectively connected to nuts of the distance adjusting screw.

Preferably, in the multi-shaft tightening machine for the turntable and the slewing bearing bolt, the radial adjusting device includes a seventh driving motor, an adjusting lead screw and a supporting plate which are sequentially connected in a driving manner, and the dual-shaft variable-pitch shaft box is fixed to the supporting plate in a lifting manner through a second lifting device.

Preferably, in the multi-shaft screwing machine for a turntable and a slewing bearing bolt, the second lifting device is two lifting cylinders arranged in the shaft box body, and a piston rod of each lifting cylinder penetrates through the shaft box body in a sliding manner and abuts against the supporting plate.

Compared with the prior art, the utility model has the advantages of: the multi-shaft bolt tightening machine for the rotary table and the slewing bearing has a simple structure, the slewing bearing and the rotary table are positioned in a small-to-large mode, and the alignment is simple; the connecting bolt is automatically screwed up in a fixed torsion mode, so that the connection reliability is guaranteed, the safety and the high efficiency of the assembly process are guaranteed, and the aims of high-efficiency and high-reliability assembly of the slewing bearing are fulfilled.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a multi-shaft tightening machine for a rotary table and a slewing bearing bolt according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of a multi-shaft screwing machine for a rotary table and a slewing bearing bolt according to an embodiment of the present invention.

Fig. 3 is a schematic view illustrating the installation of the support rod according to the embodiment of the present invention.

Fig. 4 is a schematic structural view of the turntable according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an adjusting device according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a hoisting and jacking device according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of a support bracket according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a centering mechanism according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of the first lifting device according to the embodiment of the present invention.

Fig. 10 is a schematic structural view of a dual-axis pitch-variable axle box according to an embodiment of the present invention.

Fig. 11 is a schematic structural view of a distance adjusting device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 11, a multi-shaft tightening machine for a rotary table and a slewing bearing bolt comprises a base 1, a hoisting jacking table 2 slidably connected to the base 1, a rotary support table 3 rotatably connected to the base 1, and a rotary support table 4 arranged at the center of the rotary support table 3, wherein the hoisting jacking table 2 is movably connected to the base 1 through an adjusting device 21, the rotary support table 3 comprises a rotary table 31, a support bracket 33 arranged on the rotary table 31 in a lifting manner through a first lifting device 32, and two symmetrically arranged tightening devices 34, the support bracket 33 is arranged right above the rotary table 31 through a support rod 35 and can slide along the support rod, the tightening devices 34 comprise a double-shaft variable-pitch shaft box 341, a second lifting device 342, and a radial adjusting device 343, the rotary support table 4 comprises a rotary table support shaft 41 and a rotary table support head 42 fixed at the top end of the rotary table support shaft 41, a detachable positioning pin and an in-, the detachable positioning pin corresponds to different rotary tables, universality of the rotary tables of various models is guaranteed, the device has a wider application range, the in-place sensor can detect whether the rotary table reaches an assembly position, the supporting bracket 33 is sleeved with a rotary table supporting shaft 41, the rotary table supporting table is used for positioning and supporting the front end of the rotary table, the hoisting jacking table is used for positioning and supporting a hoisting box (rear tail) of the rotary table, and the rotary supporting table is used for bearing a slewing bearing and can adjust the position of the slewing bearing according to the position of the rotary table so as to realize butt joint of the rotary table and the slewing bearing.

Among this technical scheme, concrete placement's ground has the installation hole according to presetting, the base is fixed in the installation hole through rag bolt etc., still be provided with conventional fixed footboard and the rotatory footboard that corresponds the revolving stage, belong to the conventional setting of prior art, it has just not been repeated here, the revolving stage is through setting up special revolving stage brace table and hoist jacking platform with slewing bearing bolt multi-shaft tightening machine, fix a position according to the structural feature of revolving stage, the supporting platform of revolving stage also can be regarded as simultaneously, the process of revolving stage upset in the current assembly mode has been avoided, thereby the potential safety hazard that revolving stage upset process exists has been eliminated, also can not have because the upset revolving stage and cause the revolving stage to collide with, the problem of surface scratch and the follow-up repair of needs, the repair cost has been saved.

Further, the hoisting jacking platform 2 comprises a box body 22 fixed on the adjusting device 21 and a hoisting jacking device 23 arranged at the top end of the box body, and the hoisting jacking device 23 comprises a first driving motor 231 and a first worm and gear elevator 232 which are in driving connection and a top plate 233 arranged at the top end of the first worm and gear elevator 232.

Further, the adjusting device 21 comprises a second driving motor 211 and a first lead screw 212 which are in driving connection, a nut of the first lead screw 212 is fixed at the bottom end of the box body, the box body is in sliding connection with the base 1 through a first guide rail 213, and an organ protection cover is arranged to prevent the guide rail, the second driving motor and the first lead screw from being exposed.

Among the two above-mentioned technical scheme, hoist jacking device cooperation adjusting device realizes the regulation of two vertical and horizontal directions of hoist jacking platform to be applicable to the needs of different revolving stage assemblies, hoist jacking device well includes bottom open-ended protective housing, still is equipped with the guide bar between roof and the box, guarantees that the moving direction of roof is in vertical direction all the time, and the box is as the holistic regulator cubicle of equipment simultaneously for installation controlling means etc. improve space utilization.

Further, the rotating platform 31 includes a rotating bracket 311 and a third driving motor 312, an output end of the third driving motor 312 is provided with a first gear, the base 1 is provided with a bracket slewing bearing 11 engaged with the first gear, an inner ring of the bracket slewing bearing 11 is fixed to the rotating bracket 311, and an outer ring of the bracket slewing bearing is fixed to the base.

Among this technical scheme, the revolving stage can rotate for the base, can drive support bracket and screw up the device and rotate around a revolving stage brace table, after accomplishing the work of screwing up of a set of connecting bolt, screws up the device and can rotate next set of connecting bolt department and continue to screw up, and the connected mode of revolving stage and base has very many, as long as can guarantee that the revolving stage can rotate for the base can.

Further, the supporting bracket 33 includes a first mounting ring 331 and a second mounting ring 332 concentrically arranged, the bottom of the second mounting ring 332 protrudes outwards with four mounting plates 333, the four mounting plates 333 are arranged in an equidistant circumferential array, the second mounting ring 332 and the mounting plates 333 are respectively fixedly connected to the outer wall of the first mounting ring 331 through a connecting rod 334, and the first mounting ring 331 is sleeved on the turntable supporting shaft 41.

Among this technical scheme, support bracket is used for bearing slewing bearing, support bracket can be rotatory and reciprocate relatively revolving stage supporting bench to adjustment slewing bearing's position, thereby make things convenient for more, swiftly realize revolving stage and slewing bearing's butt joint, it is connected with the deflector to correspond between the mounting panel, the deflector is run through in the support column slip, bracing piece bottom mounting is in the revolving stage, support bracket still is equipped with the casing, the concave holding tank that is equipped with of casing surface for place bolt and instrument etc..

Further, the supporting bracket 33 further includes a centering mechanism 334, the centering mechanism 334 includes a rotatable third gear 3341, a transmission case 3342 fixed to the mounting plate 333, and a sliding block 3343 slidably disposed on the transmission case, the top end of the second mounting ring 332 is fixed with a third mounting ring, the third gear 3341 is rotatably mounted on the third mounting ring through a first bearing, one end of the transmission case 3342 close to the second mounting ring 332 protrudes a fourth gear 3344 engaged with the third gear, one end of one transmission case departing from the fourth gear is connected with a fourth driving motor 3345, a roller 3346 is disposed at a top of one end of the sliding block close to the fourth mounting ring, and a universal ball bearing 3347 is disposed at a top of one end of the sliding block departing from the fourth mounting ring.

In the technical scheme, a common screw rod and nut structure is arranged in a transmission case, a U-shaped groove corresponding to a fourth gear is concavely arranged on a second mounting plate, a fourth driving motor drives the transmission case connected with the fourth driving motor, and the third gear (bevel gear) is driven to rotate by the corresponding fourth gear (bevel gear), the third gear drives the other three fourth gears to rotate, so that one motor drives the four centering mechanisms to synchronously adjust, the surface of the roller abuts against the inner ring of the slewing bearing, the ball bearing is used for bearing the slewing bearing by the ball in the universal ball bearing, can realize fine adjustment of the slewing bearing, so that the slewing bearing can freely move in the circumferential direction, further realize butt joint with a turntable, the roller can prevent the slewing bearing from moving in the radial direction, meanwhile, the roller is attached to the inner ring surface of the slewing bearing, so that the abrasion to the inner ring surface of the slewing bearing can be reduced.

Further, first elevating gear 32 is including the fifth driving motor 321 of drive connection in proper order, second worm gear lift 322 and crane 323, second worm gear lift 322 is fixed in base 1 through mounting bracket 324, the terminal of revolving stage back shaft 41 is fixed in the mounting bracket, crane 323 includes first lifter plate 3232 and the second lifter plate 3233 through the relative setting of guide arm 3231, the guide arm slides and runs through the mounting bracket, first lifter plate drive is connected in second worm gear lift, second lifter plate top from the bottom and be equipped with first bush 325 in proper order, second bearing 326 and second bush 327, first bush, revolving stage back shaft 41 is all located to second bearing and second bush sliding sleeve, the top that is fixed in the second bush is established to the bottom cover of first collar 331, the outer wall cover of first bush is equipped with aligning bearing.

Among this technical scheme, spacing boss is the loop configuration, do not interfere with first elevating gear, fifth driving motor passes through second worm gear lift drive crane lift, thereby realize first bush, second bearing and second bush go up and down, the second bush can rotate and reciprocate for the revolving stage back shaft, the top that is fixed in the second bush is established through the fixed pin cover to the bottom of first collar, thereby it goes up and down to drive the support bracket through the lift of second bush, the revolving stage rotates and drives the support bracket rotation, the second bush is followed rotatoryly, because the existence of second bearing, first bush and crane all need not to rotate, first elevating gear and revolving stage drive the lift and the rotation of support bracket respectively, the butt joint of adjustment slewing bearing and revolving stage.

Further, the dual-shaft pitch-variable axle box 341 includes an axle box 3411, two vertical tightening shafts 3412 and a pitch adjusting device 3413 for adjusting the distance between the two tightening shafts, the axle box is slidably connected to the rotary table 31 through the radial adjusting device 343, the tightening shafts are slidably fixed to the axle box and are drivingly connected to the pitch adjusting device, the pitch adjusting device 3413 includes a sixth driving motor and a pitch adjusting screw which are drivingly connected, and the two tightening shafts are respectively connected to the nuts of the pitch adjusting screw.

In the technical scheme, the tightening shafts are conventional pneumatic tightening shafts, various different torque values and rotating speeds can be provided to meet different tightening requirements, the distance adjusting device is used for adjusting the distance between the two tightening shafts so as to be suitable for assembling turntables of different specifications, and the device further comprises a control screen, a handle and other conventional manual control devices which are used for finely adjusting the equipment.

Further, the radial adjusting device 343 includes a seventh driving motor 3431, an adjusting screw 3432 and a supporting plate 3433, which are sequentially connected in a driving manner, and the dual-axis pitch-variable axle box 341 is fixed to the supporting plate via the second lifting device 342 in a lifting manner.

In the technical scheme, the radial adjusting device is used for adjusting the turning radius of the tightening shaft to be adjustable, so that the universality of turntables of different models can be ensured.

Further, the second lifting device 342 is two lifting cylinders disposed in the shaft box, and a piston rod of the lifting cylinder slidably penetrates through the shaft box and then abuts against the supporting plate.

In this technical scheme, the second elevating gear is used for realizing the automatic rising of screwing up the axle to automatically tighten the bolt.

Firstly, a slewing bearing is placed on a supporting bracket, a centering device is adjusted to accurately position the slewing bearing, a rotary table is hung on a rotary table jacking table and a hoisting jacking table by using a hanging belt, then the rotary table is leveled by the hoisting jacking device, the seat ring surface of the rotary table is attached to a rotary table jacking head, the rotary table is rotated to align a hole of the slewing bearing with a hole of the rotary table, three bolts are manually screwed (divided into 120 degrees), the height of the slewing bearing is adjusted by a first lifting device to be attached to the seat ring surface of the rotary table, the slewing bearing can also be finely adjusted by a universal ball bearing, a first group of bolts (bolts on a tightening shaft) are manually taken, the tightening shaft is manually adjusted to align the first group of bolts, a button device is started to automatically operate by pressing down (simultaneously, other groups of bolts are manually taken in sequence and are pre-tightened), and the rotary table is driven by a third driving motor to automatically, and lifting the double-shaft torque-variable axle box to tighten the next group of bolts, dropping the double-shaft torque-variable axle box, repeating the rotating and tightening processes until all the bolts are tightened, and after all the connecting bolts are tightened, hanging down the assembled rotary table to complete the assembly work.

In conclusion, the multi-shaft bolt tightening machine for the rotary table and the slewing bearing has a compact structure, the slewing bearing and the rotary table are positioned in a small-to-large mode, and the alignment is simple; the connecting bolt is automatically screwed up in a fixed torsion mode, so that the connection reliability is guaranteed, the safety and the high efficiency of the assembly process are guaranteed, and the aims of high-efficiency and high-reliability assembly of the slewing bearing are fulfilled.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims (10)

1. The utility model provides a revolving stage and slewing bearing bolt multiaxis tightening machine, its characterized in that includes base and sliding connection in the hoist jacking platform of base, rotates the rotary supporting platform who connects in the base, sets up in the revolving stage brace table at rotary supporting platform center, the hoist jacking platform passes through adjusting device portable connection in the base, the rotary supporting platform includes the revolving stage and sets up in the tightening means of the support bracket of revolving stage and two symmetrical settings through first elevating gear liftable, the support bracket passes through the bracing piece and sets up directly over the revolving stage, tightening means includes biax displacement axle box, second elevating gear and radial adjusting device, the revolving stage brace table includes the revolving stage back shaft and is fixed in the revolving stage back shaft top and supports the head, it is equipped with to support the bracket cover the revolving stage back shaft.

2. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 1, wherein: the winch jacking platform comprises a box body fixed on the adjusting device and a winch jacking device arranged at the top end of the box body, wherein the winch jacking device comprises a first driving motor and a first worm and gear elevator which are in driving connection and a top plate arranged at the top end of the first worm and gear elevator.

3. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 2, wherein: adjusting device includes second driving motor and the first lead screw of drive connection, the nut of first lead screw is fixed in the bottom of box, the box through first guide rail sliding connection in the base.

4. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 1, wherein: the revolving stage includes runing rest and third driving motor, third driving motor's output is equipped with first gear, the base is equipped with the support slewing bearing with first gear engagement, support slewing bearing's inner circle is fixed in runing rest.

5. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 1, wherein: the supporting bracket comprises a first mounting ring and a second mounting ring which are concentrically arranged, the bottom of the second mounting ring extends outwards in a protruding mode to form four mounting plates, equidistant circumference arrays are arranged between the four mounting plates, the second mounting ring and the mounting plates are fixedly connected to the outer wall of the first mounting ring through connecting rods respectively, and the first mounting ring is sleeved on the turntable supporting shaft.

6. The turntable and slewing bearing bolt multi-shaft tightening machine according to claim 5, wherein: the support bracket still includes centering mechanism, centering mechanism includes rotatable third gear, is fixed in the transmission case and the slider that slides and set up on the transmission case of mounting panel respectively, the top of second collar is fixed with the third collar, the third gear is rotatable to be installed in the third collar through first bearing, the one end that the transmission case is close to the second collar is protruding respectively to be stretched has the fourth gear with third gear engagement, one of them the one end that the transmission case deviates from the fourth gear is connected with fourth driving motor, the one end top that the slider is close to the fourth collar is equipped with the gyro wheel, the one end top that the slider deviates from the fourth collar is equipped with universal ball bearing.

7. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 6, wherein: first elevating gear is including the fifth driving motor, second worm gear lift and the crane that drive in proper order connects, second worm gear lift is fixed in the base through the mounting bracket, the end of revolving stage back shaft is fixed in the mounting bracket, the crane includes first lifter plate and the second lifter plate that sets up relatively through the guide arm, the guide arm slides and runs through the mounting bracket, first lifter plate drive is connected in second worm gear lift, second lifter plate top from the bottom up is equipped with first bush, second bearing and second bush in proper order, revolving stage back shaft is located to the equal slip cap of first bush, second bearing and second bush, the bottom cover of first collar is located the top of second bush, the outer wall cover of first bush is equipped with self-aligning bearing.

8. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 1, wherein: the double-shaft variable-pitch axle box comprises an axle box body, two vertical tightening shafts and a distance adjusting device used for adjusting the distance between the two tightening shafts, wherein the axle box body is connected to the rotating platform in a sliding mode through a radial adjusting device, the tightening shafts are fixed to the axle box body in a sliding mode and connected to the distance adjusting device in a driving mode, the distance adjusting device comprises a sixth driving motor and a distance adjusting lead screw which are connected in a driving mode, and the tightening shafts are connected to a screw nut of the distance adjusting lead screw respectively.

9. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 8, wherein: the radial adjusting device comprises a seventh driving motor, an adjusting lead screw and a supporting plate which are sequentially connected in a driving mode, and the double-shaft variable-pitch shaft box is fixed on the supporting plate in a lifting mode through the second lifting device.

10. The turret and slewing bearing bolt multi-shaft tightening machine according to claim 9, wherein: the second lifting device is two lifting cylinders arranged in the shaft box body, and piston rods of the lifting cylinders penetrate through the shaft box body in a sliding mode and then abut against the supporting plate.

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