CN212286612U - Automatic reducing device for screw installation - Google Patents
Automatic reducing device for screw installation Download PDFInfo
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- CN212286612U CN212286612U CN202022082827.5U CN202022082827U CN212286612U CN 212286612 U CN212286612 U CN 212286612U CN 202022082827 U CN202022082827 U CN 202022082827U CN 212286612 U CN212286612 U CN 212286612U
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Abstract
The utility model discloses an automatic reducing device for screw installation, which comprises a driving mechanism, a reducing guide disc, a rotary support bearing, a fixed workbench and a reducing tool; the fixed workbench and the reducing guide disc are respectively and fixedly connected with the outer ring and the inner ring of the rotary support bearing; the reducing guide disc is provided with a plurality of guide notches, the guide notches are provided with reducing tools, the lower parts of the reducing tools are provided with rollers, and the rollers are arranged in the guide notches; the bottom of the reducing tool is provided with a sliding block, the sliding block is matched with a guide rail arranged on a fixed tool table, and a plurality of guide rails are radially arranged by taking the intersection point of the axis of the rotary support bearing and the fixed working table as the circle center; the driving device is used for driving the reducing guide disc to rotate, and the reducing guide disc pushes the plurality of reducing tools to move on the sliding rail at equal distances through the rollers. The utility model can realize the automatic diameter-changing position of the reducing tool, and meet the development requirements of automatic production lines; can realize that a plurality of screws are screwed up simultaneously, improve the packaging efficiency.
Description
Technical Field
The utility model belongs to the technical field of machinery, a structural improvement of assembly fixture is related to, specifically speaking is an automatic reducing device of screw installation.
Background
When the train wheel is assembled, a plurality of screws of the wheel need to be screwed, the wheel screws are uniformly distributed relative to the circle center of the wheel, and the arrangement positions and the diameters of the wheel screws of different models are different. The traditional tightening mechanism cannot realize automatic compatibility of tightening and assembling wheels of different types, and the process of changing models and changing production is complex and tedious; the manual assembly can not realize the simultaneous screwing work of a plurality of screws, the assembly efficiency is low, and the stability of the screwing assembly quality is poor.
In addition, when the screw or the bolt and the nut are fastened, the screw head is applied with torque, the nut slips and rotates along with the screw head, and the screw cannot be fastened, so that a counter-torque device needs to be arranged at the end of the nut, the nut is fixed and does not rotate, the screw head rotates to fasten the screw and the nut, and the function of fastening the parts is achieved.
When a group of screws are assembled automatically, the torque of the screws is usually gradually applied to the final torque in several stages instead of being applied to the maximum torque at one time, so that after one screw is screwed, the inner wall of the counter torque sleeve is tightly extruded with the outer wall of the nut to generate larger pressure, and the counter torque sleeve is not easy to pull out; after the counter torque sleeve is pulled out by using a large pulling force, the extrusion force between the counter torque sleeve and the nut is released, and micro deformation can be generated on the inner wall and the outer wall of the counter torque sleeve and the nut, so that the pattern of the counter torque sleeve is staggered with the pattern of the nut, and the counter torque sleeve cannot be inserted into the nut again.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an automatic reducing device of screw installation for solve the problem that exists among the prior art.
In order to realize the utility model discloses an aim at, adopt following technical scheme:
the automatic reducing device for mounting the screw comprises a driving mechanism, a reducing guide disc, a rotary support bearing, a fixed workbench and a reducing tool; the fixed workbench and the reducing guide disc are respectively and fixedly connected with the outer ring and the inner ring of the rotary support bearing; the reducing guide disc is provided with a plurality of guide notches, the guide notches are provided with reducing tools, the lower parts of the reducing tools are provided with rollers, and the rollers are arranged in the guide notches; the bottom of the reducing tool is provided with a sliding block, the sliding block is matched with a guide rail arranged on a fixed tool table, and a plurality of guide rails are radially arranged by taking the intersection point of the axis of the rotary support bearing and the fixed working table as the circle center; the driving device is used for driving the reducing guide disc to rotate, and the reducing guide disc pushes the plurality of reducing tools to move on the sliding rail at equal distances through the rollers.
In order to further realize the purpose of the utility model, the following technical scheme can also be adopted:
the automatic reducing device for the screw installation is characterized in that the fixed workbench and the reducing guide disc are provided with inner circular holes fixedly matched with the outer ring and the inner ring of the rotary supporting bearing, and the plurality of guide notches are arranged along the tangential direction of the inner circular holes in the reducing guide disc.
As above automatic reducing device of screw installation, actuating mechanism includes motor, pinion and sets up on the reducing positioning disk with the gear wheel of pinion meshing, pinion and motor are located fixed workstation upper and lower both sides respectively, and the motor shaft passes fixed frock platform after and is connected with the pinion pivot.
The automatic reducing device is installed on the screw, and the large gear is an arc-shaped rack section arranged on the periphery of the reducing guide disc.
The automatic diameter changing device for the screw installation is characterized in that the driving mechanism is provided with a tooth gap adjusting piece, the tooth gap adjusting piece comprises a box body installed on a fixed tool table, a jacking screw and a tensioning screw are installed on the side wall of the box body, an adjusting hole is formed in the rotating shaft part of the motor of the fixed working table, and the inner ends of the jacking screw and the tensioning screw are matched with the rotating shaft of the motor or the rotating shaft of the pinion through shaft sleeves.
The automatic diameter changing device for the screw installation comprises a base, wherein a lifting mechanism, a locking mechanism and a counter-torque mechanism are installed on the base, and the counter-torque mechanism and the locking mechanism are respectively arranged on the side faces of the lifting mechanism; the counter torque mechanism comprises a lifting guide cylinder, a lifting shaft and a counter torque sleeve; a lifting shaft is arranged in the lifting guide cylinder, and a counter torque sleeve is arranged at the upper end of the lifting shaft extending out of the lifting guide cylinder; a vertical guide chute is formed in the side wall of the lifting guide cylinder on the side of the lifting mechanism; the lifting mechanism comprises a lifting cylinder, a cylinder connecting piece and a lifting connecting plate; a cylinder connecting piece is fixedly installed on a piston rod of the lifting cylinder and connected with one end of a lifting connecting plate, the other end of the lifting connecting plate is fixedly connected with the lifting shaft through a guide key, and the guide key is arranged in the guide sliding groove; the lifting shaft can drive the guide key and the lifting connecting plate to rotate; the locking mechanism comprises a locking cylinder, a fixed block, a locking sliding block and a thimble; the fixed block is arranged on the outer side of the lifting guide cylinder; the fixed block is provided with a vertical sliding groove, the locking sliding block is arranged in the vertical sliding groove, and the upper part of a piston rod of the locking air cylinder is fixedly connected with the locking sliding block; the fixed block and the lifting guide cylinder are provided with corresponding locking holes, ejector pins are arranged in the locking holes, and springs are arranged on the ejector pins; the locking cylinder can drive the locking sliding block to move upwards, and the locking sliding block pushes the outer end of the thimble to extend into the lifting guide cylinder to be in contact with and fixed with the lifting shaft; when the locking cylinder drives the locking slide block to move downwards, the spring can push the outer end of the thimble to be separated from the lifting shaft to retract.
According to the automatic diameter changing device for the screw installation, the cylinder connecting piece is of a clamping seat structure and comprises an upper connecting plate, a lower connecting plate and a short shaft arranged between the upper connecting plate and the lower connecting plate.
The automatic diameter changing device for the screw installation comprises a transverse plate and a vertical plate, wherein one end of the transverse plate is provided with an arc-shaped groove matched with the short shaft, the other end of the transverse plate is fixedly connected with the upper part of the vertical plate, and the lower part of the vertical plate is fixedly connected with a lifting shaft through a guide key.
The automatic diameter changing device is installed on the screw, the width of the guide sliding groove is 1.2-1.6 times of the width of the guide key, and the angle range of the guide key capable of rotating in the guide sliding groove is 0-10 degrees.
The automatic diameter changing device is installed on the screw, and the vertical sliding groove and the locking sliding groove are rectangular holes; the thimble and the locking slide block are provided with matched sliding inclined planes; the periphery of the lifting shaft is provided with a vertical V-shaped groove, and the outer end of the ejector pin is provided with a V-shaped part matched with the V-shaped groove.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses the automatic variable diameter position that can realize the reducing frock satisfies automation line's development demand. Can realize that a plurality of screws are screwed up simultaneously, improve the packaging efficiency. The utility model discloses can realize the automatic compatibility of the multiple product model of unidimensional not.
2. The utility model overcomes installation quality is unstable among the artifical installation screw process, reduces unqualified screw rate, promotes the uniformity of the final moment of torsion of screw, has improved product quality, has reduced manufacturing cost.
3. The utility model discloses overcome the moment of torsion when can realizing that the counter torque device screws up screw nut, ensure that the nut can not produce relative slip when screwing up, satisfy automation line's user demand. The lifting shaft can be positioned through the locking mechanism, so that the nut is ensured to be fixed when the screw is screwed down.
4. The utility model overcomes the substep is screwed up in-process counter torque sleeve and is received nut squeezing action, is difficult for extracting the telescopic problem of counter torque. The lifting shaft drives the counter torque sleeve to rotate slightly, so that the extrusion force of the counter torque sleeve and the nut can be better released, and the counter torque sleeve can be conveniently drawn out. The extrusion force of the counter torque sleeve and the nut is released in advance, so that the inner wall patterns and the outer wall patterns of the counter torque sleeve cannot be damaged when the counter torque sleeve is pulled out.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an assembly view of the variable diameter guide plate, the slewing bearing and the fixed table shown in FIG. 1;
FIG. 3 is a top view of FIG. 1 (with the reducing tooling moved to a minimum diameter position);
FIG. 4 is another state diagram of FIG. 3 (with the reducing tooling moved to a maximum diameter position);
FIG. 5 is a partial schematic view of the guide slot and roller of FIG. 1;
FIG. 6 is a schematic structural diagram of the reducing tool in FIG. 1;
FIG. 7 is an assembled schematic view of the drive mechanism of FIG. 6;
FIG. 8 is a schematic structural view of the lift guide cylinder of FIG. 6;
FIG. 9 is a schematic structural view of the guide key and the guide runner in FIG. 6;
fig. 10 is a schematic view of the internal structure of fig. 6.
Reference numerals: 1-driving mechanism, 2-reducing guide disc, 3-rotary support bearing, 31-inner ring, 32-outer ring, 4-reducing tool, 41-base, 42-lifting cylinder, 43-cylinder connecting piece, 44-lifting connecting plate, 45-counter torque sleeve, 46-lifting shaft, 461-mounting hole, 462-V groove, 47-lifting guide cylinder, 471-shaft hole, 472-guide sliding groove, 473-locking sliding groove, 474-connecting part, 48-fixing block, 49-locking cylinder, 410-thimble, 411-spring, 412-locking sliding block, 413-guide key, 414-nut, 5-fixing workbench, 6-guide notch, 7-roller, 8-linear guide rail, 9-pinion, 10-big gear, 11-backlash adjustment, 111-tightening screw, 112-tightening screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1 to 10, the automatic diameter changing device for screw installation disclosed in this embodiment includes a driving mechanism, a diameter changing guide disc, a rotary support bearing, a fixed working table, and a diameter changing tool; the fixed workbench and the reducing guide disc are respectively and fixedly connected with the outer ring and the inner ring of the rotary support bearing; the reducing guide disc is provided with a plurality of guide notches, the guide notches are provided with reducing tools, the lower parts of the reducing tools are provided with rollers, and the rollers are arranged in the guide notches; the bottom of the reducing tool is provided with a sliding block, the sliding block is matched with a guide rail arranged on a fixed tool table, and a plurality of guide rails are radially arranged by taking the intersection point of the axis of the rotary support bearing and the fixed working table as the circle center; the driving device is used for driving the reducing guide disc to rotate, and the reducing guide disc pushes the plurality of reducing tools to move on the sliding rail at equal distances through the rollers.
Specifically, the driving mechanism 1 is installed on a fixed working table 5, the reducing guide disc 2 is connected with the fixed working table 5 through a slewing bearing 3, an inner ring 31 of the slewing bearing 3 is fixedly connected with the reducing guide disc 2, an outer ring 32 of the slewing bearing is fixedly connected with the fixed working table 5, and the reducing guide disc 2 can rotate relative to the fixed working table 5.
As shown in fig. 2, in the present embodiment, the fixed table 5 and the reducing guide disc 2 are provided with inner circular holes fixedly engaged with the outer ring 32 and the inner ring 31 of the slewing bearing 3, and the plurality of guide notches 6 are arranged along the tangential direction of the inner circular hole of the reducing guide disc 2.
The driving mechanism 1 comprises a motor, a pinion 9 and a large gear 10 which is arranged on the reducing guide disc 2 and meshed with the pinion 9, the pinion 9 and the motor are respectively positioned on the upper side and the lower side of the fixed workbench 5, and a motor rotating shaft penetrates through the fixed tooling table 5 and then is connected with the pinion 9 in a rotating mode.
As shown in fig. 1 and 5, the large gear 10 is an arc-shaped rack segment, the small gear 9 is meshed with the large gear 10, the fixed workbench 5 is provided with the linear guide rail 8, the linear guide rail 8 is uniformly arranged along the diameter direction of the diameter-variable guide disc 2, the linear guide rail 8 is provided with the diameter-variable tool 4 which can slide along the direction of the linear guide rail 8, the bottom of the diameter-variable tool 4 is provided with the roller 7, and the roller 7 is arranged in the guide notch 6 of the diameter-variable guide disc 2 and is tangent to the guide notch 6.
The periphery of the pinion 9 is provided with a tooth gap adjusting piece, the tooth gap adjusting piece comprises a box body arranged on the fixed tool table 5, the side wall of the box body is provided with a jacking screw 111 and a tightening screw 112, the fixed working table 5 is provided with an adjusting hole at the rotating shaft part of the motor, and the inner ends of the jacking screw 111 and the tightening screw 112 are matched with the rotating shaft of the motor or the rotating shaft of the pinion through shaft sleeves.
The driving mechanism 1 drives the pinion 9 to rotate, the pinion 9 drives the large gear 10 and the reducing guide disc 2 to rotate on the slewing bearing 3, the reducing guide disc 2 rotates to drive the guide notch 6 to rotate, the side wall of the guide notch 6 applies a thrust F1 to the roller 7, the thrust F1 is decomposed into a component F2 in the direction of the linear guide rail 8 and a component F3 perpendicular to the direction of the linear guide rail 8, the component F2 in the direction of the linear guide rail 8 drives the roller 7 and the reducing tool 4 to move in the direction of the linear guide rail 8, equidistant reducing is achieved, and multiple sets of reducing tools 4 are uniformly distributed to achieve simultaneous action and adjustment.
As shown in fig. 5 to 10, the reducing tool 4 includes a base 41, and a lifting mechanism, a locking mechanism and a counter-torque mechanism are mounted on the base 41, and the counter-torque mechanism and the locking mechanism are respectively disposed on the side surfaces of the lifting mechanism.
The base 41 is a bottom plate made of a plate material, and a bolt hole for mounting a lifting mechanism, a locking mechanism, a counter torque mechanism, and the like is formed in the bottom plate in advance. Meanwhile, in order to make the structure of the device more compact, as shown in fig. 1, the lifting mechanism is arranged on the left side of the counter torque mechanism, and the locking mechanism is arranged on the front side of the torque mechanism.
As shown in fig. 7 and 8, the counter torque mechanism of the present embodiment includes a lifting guide cylinder 47, a lifting shaft 46, and a counter torque sleeve 45; a lifting shaft 46 is arranged in the lifting guide cylinder 47, and a counter torque sleeve 45 is arranged at the upper end of the lifting shaft 46 extending out of the lifting guide cylinder 47; the side wall of the lifting guide cylinder 47 is provided with a vertical guide chute 472 at the side of the lifting mechanism.
The bottom of the lifting guide cylinder 47 is provided with a connecting part 474, and the connecting part 474 is matched with a connecting hole formed on the bottom plate 41; the middle of the lifting guide cylinder 47 is provided with a shaft hole 471 matched with the lifting shaft 46, and the lifting shaft 46 can lift in the shaft hole 471 to drive the counter torque cylinder to lift the fixing nut 414 or descend and draw out.
The counter torque sleeve 45 is a standard component, the opening of the counter torque sleeve 45 is upwards matched with the nut 414, and the counter torque sleeve 45 is detachably connected with the lifting shaft 46 through an inner screw hole and a screw, so that replacement and maintenance are convenient.
Referring to fig. 6, the lifting mechanism includes a lifting cylinder 42, a cylinder connecting member 43, and a lifting connecting plate 44; a cylinder connecting piece 43 is fixedly arranged on a piston rod of the lifting cylinder 42, a lifting connecting plate 44 is fixedly connected with a lifting shaft 46 through a guide key 413, and the guide key 413 is arranged in a guide sliding groove 472; the lifting shaft 46 can drive the guide key 413 and the lifting connecting plate 44 to rotate.
As shown in fig. 7, the lifting connection plate 44 of the present embodiment is a clamping seat structure, and includes an upper connection plate, a lower connection plate, and a short shaft installed therebetween. The lifting connecting plate 44 is composed of a transverse plate and a vertical plate, one end of the transverse plate is provided with an arc-shaped groove matched with the short shaft, the other end of the transverse plate is fixedly connected with the upper part of the vertical plate, and the lower part of the vertical plate is fixedly connected with a lifting shaft 46 through a guide key 413.
The guide key 413 passes through a guide sliding groove 472 formed in the side wall of the lifting guide cylinder 47, one end of the guide key 413 is fixedly connected with the lifting shaft 46 through a mounting hole 461, and the other end of the guide key 413 is fixedly connected with the lower part of the vertical plate. The guide key 413 can slide up and down in the guide sliding groove 472 under the driving of the lifting cylinder 42.
As shown in fig. 7, 8 and 9, since the width of the guide key 413 is smaller than that of the guide slot 472, the lifting shaft 46 can drive the guide key 413 to rotate slightly in the guide slot 472.
In this embodiment, the width of the guiding sliding groove 472 is 1.2-1.6 times, preferably 1.3-1.5 times, of the width of the guiding key 413, so as to ensure stable lifting and have good rotation adjustment performance. When the guide key 413 contacts the side wall of the guide chute 472, it is blocked from further rotation.
The guide key 413 can be rotated within the guide slot 472 by an angle in the range of 0-6 ° to achieve fine rotational adjustment of the counter torque sleeve 45. When the lifting shaft 46 rotates to drive the guide key 413 and the lifting connecting plate 44 to rotate together, the lifting connecting plate 44 rotates simultaneously by utilizing the matching of the arc-shaped groove arranged on the transverse plate and the short shaft, and the lifting cylinder 42 and the cylinder connecting piece 43 are fixed. Meanwhile, the lifting connecting plate 44 cannot touch the cylinder connecting piece 43 during rotation, so that the lifting cylinder 42 and the like are prevented from being damaged by lateral force.
The locking mechanism in this embodiment is used for limiting and fixing the lifting shaft 46 when the counter torque sleeve 45 moves upwards and is sleeved in the nut 414; when the nut 414 is screwed, the locking mechanism is reset, and the lifting cylinder 42 drives the lifting shaft 46 to move up and down and separate in the lifting guide cylinder 47 through the cylinder connecting piece 43, the lifting connecting plate 44 and the guide key 413.
As shown in fig. 6 and 10, the locking mechanism includes a locking cylinder 49, a fixed block 48, a locking slider 412 and a thimble 410; the fixed block 48 is arranged outside the lifting guide cylinder 47; a vertical sliding groove is formed in the fixed block 48, the locking sliding block 412 is arranged in the vertical sliding groove, and the upper part of a piston rod of the locking cylinder 49 is fixedly connected with the locking sliding block 412; the fixed block 48 and the lifting guide cylinder 47 are provided with corresponding locking holes, the locking holes are internally provided with thimbles 410, and the thimbles 410 are provided with springs 411; the locking cylinder 49 can drive the locking slide block 412 to move upwards, and the locking slide block 412 pushes the outer end of the thimble 410 to extend into the lifting guide cylinder 47 to be fixed in contact with the lifting shaft 46; when the locking cylinder 49 drives the locking slider 412 to move downward, the spring 411 can push the outer end of the thimble 410 to separate from the lifting shaft 46 for retraction.
The lifting guide cylinder 47 is provided with a locking sliding groove 473 at the front side, the fixing block 48 is also provided with a corresponding locking sliding groove 473 as a moving sliding way of the thimble 410 in the lifting guide cylinder 47 and the fixing block 48, the fixing block 48 is provided with a vertical sliding groove, and the vertical sliding groove and the locking sliding groove 473 are rectangular holes.
The inner end of the thimble 410 and the upper part of the locking slide block 412 are provided with a matched sliding inclined plane. The periphery of the lifting shaft 46 is provided with a vertical V-shaped groove 462, and the outer end of the thimble 410 is provided with a V-shaped part matched with the V-shaped groove 462.
When the locking cylinder 49 ascends, the locking slide block 412 is driven to move upwards, the locking slide block 412 pushes the thimble 410 to move inwards to the lifting guide cylinder 47, the V-shaped part at the outer end of the thimble 410 is matched with the V-shaped groove 462 at the periphery of the lifting shaft 46, at the moment, the spring 411 is compressed, and the lifting shaft 46 is tightly pushed and cannot rotate; when the locking cylinder 49 descends, the locking slider 412 is driven to move downwards, the spring 411 pushes the thimble 410 to retract, the thimble 410 leaves the V-shaped groove 462 to be separated from the lifting shaft 46, and at the moment, the lifting shaft 46 can lift and rotate.
The utility model discloses a reducing frock 4 is at the during operation, and lift cylinder 42's piston rod stretches out, drives cylinder connecting piece 43, lift connecting plate 44, direction key 413, lift axle 46, reaction moment sleeve 45 etc. and rises together simultaneously, because thimble 410 does not stretch out, lift axle 46 and reaction moment sleeve 45 can be at the circumferencial direction small-angle rotation of lift guide 47.
When the counter torque sleeve 45 is sleeved in the nut 414, the piston rod of the locking cylinder 49 extends out to drive the locking slide block 412 to ascend; the locking slide block 412 pushes the V-shaped part of the thimble 410 to extend into the V-shaped groove 462, so that the lifting shaft 46 is positioned and cannot rotate, and the counter torque sleeve 45 is fixed; the nut 414 can not rotate in the counter torque sleeve 45, and can play a torque resisting role; the screw head is torqued with an electric torque wrench to tighten the screw, at which time the nut 414 and the inner wall of the counter torque sleeve 45 are pressed tightly against each other, making it difficult to extract the counter torque sleeve 45. Then, the piston rod of the locking cylinder 49 retracts to drive the locking slide block 412 to descend, and the spring 411 releases the thrust to push the thimble 410 to retract backwards and separate from the lifting shaft 46; at this time, the counter torque sleeve 45 rotates a little in the direction away from the nut 414, the pressure between the nut 414 and the counter torque sleeve 45 is released, the inner wall of the counter torque sleeve and the nut 414 are not extruded together, the lifting shaft 46 and the counter torque sleeve 45 recover to a rotatable state, and the piston rod of the lifting cylinder 42 retracts to drive the cylinder connecting member 43, the lifting connecting plate 44, the guide key 413, the lifting shaft 46, the counter torque sleeve 45 and the like to move downwards together.
When the device works next time, because the former counter torque sleeve 45 and the nut 414 do not have extrusion force, patterns on the inner wall of the counter torque sleeve 45 and the outer wall of the nut 414 are not staggered, the counter torque sleeve 45 can be easily aligned to the patterns to be sleeved on, and the next screwing operation of the screw or the bolt and the nut 414 is continued.
The technical contents not described in detail in the present invention are all known techniques.
Claims (10)
1. The automatic reducing device for mounting the screw is characterized by comprising a driving mechanism, a reducing guide disc, a rotary support bearing, a fixed workbench and a reducing tool; the fixed workbench and the reducing guide disc are respectively and fixedly connected with an outer ring and an inner ring of the rotary support bearing; the reducing guide disc is provided with a plurality of guide notches, the guide notches are provided with reducing tools, the lower parts of the reducing tools are provided with rollers, and the rollers are arranged in the guide notches; the bottom of the reducing tool is provided with a sliding block, the sliding block is matched with a guide rail arranged on a fixed tool table, and a plurality of guide rails are radially arranged by taking the intersection point of the axis of the rotary support bearing and the fixed working table as the circle center; the driving mechanism is used for driving the reducing guide disc to rotate, and the reducing guide disc pushes the plurality of reducing tools to move on the sliding rail at equal distances through the rollers.
2. The automatic screw installation diameter changing device as claimed in claim 1, wherein the fixed workbench and the diameter changing guide disc are provided with inner circular holes fixedly matched with the outer ring and the inner ring of the rotary support bearing, and the plurality of guide notches are arranged along the tangential direction of the inner circular holes on the diameter changing guide disc.
3. The automatic screw installation diameter changing device of claim 1, wherein the driving mechanism comprises a motor, a pinion and a bull gear arranged on the diameter changing guide disc and meshed with the pinion, the pinion and the motor are respectively positioned on the upper side and the lower side of the fixed workbench, and a motor rotating shaft penetrates through the fixed tooling table and then is connected with a pinion rotating shaft.
4. The screw installation automatic reducing device as claimed in claim 3, wherein the large gear is an arc-shaped rack segment arranged on the periphery of the reducing guide disc.
5. The automatic diameter changing device for screw installation according to claim 3, wherein the driving mechanism is provided with a backlash adjusting member, the backlash adjusting member comprises a box body installed on the fixed tool table, a jacking screw and a tightening screw are installed on the side wall of the box body, the fixed working table is provided with an adjusting hole at the rotating shaft part of the motor, and the inner ends of the jacking screw and the tightening screw are matched with the rotating shaft of the motor or the rotating shaft of the pinion through shaft sleeves.
6. The automatic diameter changing device for the screw installation according to claim 1, wherein the diameter changing tool comprises a base, a lifting mechanism, a locking mechanism and a counter moment mechanism are installed on the base, and the counter moment mechanism and the locking mechanism are respectively arranged on the side faces of the lifting mechanism; the counter torque mechanism comprises a lifting guide cylinder, a lifting shaft and a counter torque sleeve; a lifting shaft is arranged in the lifting guide cylinder, and a counter torque sleeve is arranged at the upper end of the lifting shaft extending out of the lifting guide cylinder; a vertical guide chute is formed in the side wall of the lifting guide cylinder on the side of the lifting mechanism; the lifting mechanism comprises a lifting cylinder, a cylinder connecting piece and a lifting connecting plate; a cylinder connecting piece is fixedly installed on a piston rod of the lifting cylinder and connected with one end of a lifting connecting plate, the other end of the lifting connecting plate is fixedly connected with the lifting shaft through a guide key, and the guide key is arranged in the guide sliding groove; the lifting shaft can drive the guide key and the lifting connecting plate to rotate; the locking mechanism comprises a locking cylinder, a fixed block, a locking sliding block and a thimble; the fixed block is arranged on the outer side of the lifting guide cylinder; the fixed block is provided with a vertical sliding groove, the locking sliding block is arranged in the vertical sliding groove, and the upper part of a piston rod of the locking air cylinder is fixedly connected with the locking sliding block; the fixed block and the lifting guide cylinder are provided with corresponding locking holes, ejector pins are arranged in the locking holes, and springs are arranged on the ejector pins; the locking cylinder can drive the locking sliding block to move upwards, and the locking sliding block pushes the outer end of the thimble to extend into the lifting guide cylinder to be in contact with and fixed with the lifting shaft; when the locking cylinder drives the locking slide block to move downwards, the spring can push the outer end of the thimble to be separated from the lifting shaft to retract.
7. The screw installation automatic reducing device as claimed in claim 6, wherein the cylinder connecting piece is of a clamping seat structure and comprises an upper connecting plate, a lower connecting plate and a short shaft arranged between the upper connecting plate and the lower connecting plate.
8. The automatic diameter changing device for screw installation according to claim 7, wherein the lifting connecting plate comprises a transverse plate and a vertical plate, one end of the transverse plate is provided with an arc-shaped groove matched with the short shaft, the other end of the transverse plate is fixedly connected with the upper part of the vertical plate, and the lower part of the vertical plate is fixedly connected with the lifting shaft through a guide key.
9. The automatic screw installation diameter changing device as claimed in claim 6, wherein the width of the guide sliding groove is 1.2-1.6 times of the width of the guide key, and the angle range of the guide key capable of rotating in the guide sliding groove is 0-10 degrees.
10. The automatic variable diameter device for screw installation according to claim 6, wherein the vertical sliding groove and the locking sliding groove are rectangular holes; the thimble and the locking slide block are provided with matched sliding inclined planes; the periphery of the lifting shaft is provided with a vertical V-shaped groove, and the outer end of the ejector pin is provided with a V-shaped part matched with the V-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022082827.5U CN212286612U (en) | 2020-09-22 | 2020-09-22 | Automatic reducing device for screw installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022082827.5U CN212286612U (en) | 2020-09-22 | 2020-09-22 | Automatic reducing device for screw installation |
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|---|---|
| CN212286612U true CN212286612U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022082827.5U Active CN212286612U (en) | 2020-09-22 | 2020-09-22 | Automatic reducing device for screw installation |
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| CN (1) | CN212286612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346953A (en) * | 2021-12-17 | 2022-04-15 | 中国北方发动机研究所(天津) | Powerful disassembling tool for engine filter |
-
2020
- 2020-09-22 CN CN202022082827.5U patent/CN212286612U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346953A (en) * | 2021-12-17 | 2022-04-15 | 中国北方发动机研究所(天津) | Powerful disassembling tool for engine filter |
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