CN115446595A

CN115446595A - Feeding, screwing and riveting equipment

Info

Publication number: CN115446595A
Application number: CN202211316096.3A
Authority: CN
Inventors: 李春; 李磊; 杨茂光
Original assignee: Suzhou Setten Lingou Intelligent Technology Co ltd
Current assignee: Suzhou Setten Lingou Intelligent Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2022-12-09

Abstract

The invention provides a feeding, screwing and riveting device, which comprises: the device comprises a multi-conveying-line feeding device, a double-station assembling device, a conveying transition line and a robot; the multi-conveying-line feeding device is arranged along the X-axis direction; the multi-conveying-line feeding device and the double-station assembling device are arranged side by side along the Y axis; the conveying transition line extends along the Y axis and is positioned at the blanking position of the multi-conveying-line feeding device; the robot is located in the area surrounded by the multi-conveying-line feeding device and the double-station assembling device. The invention can realize the continuous feeding of the end cover, the gasket and the nut at the same station, and continuously pre-assemble all workpieces on the rotating shaft sleeved with the iron core. Meanwhile, the rotating shaft preassembled with the end cover, the gasket and the nut can be further screwed and riveted, and the assembly and fixation of all workpieces are completed, so that the assembly efficiency of the rotor is remarkably improved.

Description

Feeding, screwing and riveting equipment

Technical Field

The invention relates to the technical field of rotor assembly, in particular to equipment suitable for feeding and assembling an end cover, a gasket and a nut.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law, and the motor is mainly used for driving electric appliances or various mechanical equipment to work by generating driving torque as a power source. The motor is generally composed of a stator, a rotor, and other accessories. When the motor works, the stator of the motor forms a rotating magnetic field, the rotor is arranged in the rotating magnetic field, and a coil wound on the rotor obtains a rotating torque under the action of the rotating magnetic field after being electrified, so that the rotor is driven to rotate.

In order to facilitate the pivoting of the rotor and the winding of the coil, the rotor comprises: a rotating shaft, an iron core and the like. Wherein, the rotating shaft is used as a pivot shaft of the rotor. The iron cores are multiple and are sequentially sleeved on the rotating shaft in a laminating mode and serve as winding carriers of the coils. Meanwhile, in order to keep the iron core fixed, the rotating shaft is sleeved with a gasket and an end cover, and the gasket and the end cover are locked and fixed by a nut. Therefore, it is necessary to provide a further solution to how to achieve continuous feeding and assembling of the end cap, the gasket, and the nut.

Disclosure of Invention

The invention aims to provide feeding, screwing and riveting equipment to overcome the defects in the prior art.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a material loading screw-down riveting apparatus, comprising: the device comprises a multi-conveying-line feeding device, a double-station assembling device, a conveying transition line and a robot;

the multi-conveying-line feeding device is arranged along the X-axis direction; the multi-conveying-line feeding device and the double-station assembling device are arranged side by side along the Y axis; the conveying transition line extends along the Y axis and is positioned at the blanking position of the multi-conveying-line feeding device; the robot is positioned in an area surrounded by the multi-conveying-line feeding device and the double-station assembling device;

many transfer chain loading attachment includes and sets up side by side along the X axle: the device comprises an end cover feeding conveying line, a gasket feeding conveying line, a nut feeding conveying line and a carrying mechanism; the conveying mechanism is positioned at the downstream position of each conveying line, and workpieces provided by each conveying line are sequentially pre-assembled on a rotating shaft provided by the conveying transition line;

the double-station assembling device comprises: a tightening mechanism and a riveting mechanism; the tightening mechanism and the riveting mechanism are arranged in a turnover range covered by the robot, the robot turns the rotating shaft pre-installed with the nut to the tightening mechanism through the conveying transition line, and then turns the rotating shaft after the nut is tightened to the riveting mechanism through the tightening mechanism.

As an improvement of the feeding, screwing and riveting device of the invention, the end cover feeding conveyor line comprises: the conveying device comprises a first conveying line body and a first loading disc, wherein the first loading disc is driven by the first conveying line body to reciprocate along an X axis;

the gasket feeding conveyor line comprises: the second conveying line body and the second carrying disc are driven by the second conveying line body to reciprocate along the X axis;

the nut material loading transfer chain includes: the jig is arranged on the third conveying line body at intervals and driven by the third conveying line body to reciprocate along an X axis.

As an improvement of the feeding, screwing and riveting device, the first conveying line body is a first X-axis linear motor, the first carrying disc is connected to a sliding block driven by the first X-axis linear motor, and at least one group of first stand columns suitable for stacking and sleeving a plurality of end covers are further arranged on the first carrying disc;

the second conveyor line body is a second X-axis linear motor, the second carrying disc is connected to a sliding block driven by the second X-axis linear motor, and at least one group of second stand columns suitable for stacking and sleeving a plurality of gaskets are further arranged on the second carrying disc;

the third conveyor line body includes: a drive unit and a transmission unit; the transmission unit includes: the chain is sleeved on the chain wheels, the driving unit is in transmission connection with one chain wheel, and the plurality of jigs are arranged on the chain at intervals and move circularly along with the chain.

As an improvement of the feeding, screwing and riveting equipment, the plurality of chain wheels are respectively arranged at the upstream end and the downstream end according to the conveying direction, two groups of chain wheels which are arranged up and down are arranged at any end, and the chain wheels are linked through the chain; the driving unit includes: a driving motor and a divider; the driving motor is in transmission connection with a chain wheel through the divider.

As an improvement of the feeding, screwing and riveting device, the transmission units are arranged into two groups, the chain wheels of the two groups of transmission units are arranged side by side from left to right, and any two chain wheels which are oppositely arranged are linked through a transmission shaft; the chain of the two groups of transmission units is connected with a plurality of jigs, any jig is provided with two material troughs which are arranged side by side and suitable for placing nuts, and each jig moves circularly along with the chain.

As an improvement of the feeding, tightening and riveting apparatus of the present invention, the carrying mechanism includes: a first carrying unit and a second carrying unit; the first carrying unit performs three-dimensional movement along XYZ axes, and performs turnover blanking on the end covers conveyed by the end cover feeding conveying line and the gaskets conveyed by the gasket feeding conveying line; the second carrying unit is integrated on the first carrying unit, and the nuts conveyed by the nut feeding conveying line are subjected to turnover and blanking.

As an improvement of the feeding, tightening and riveting apparatus of the present invention, the first carrying unit includes: the conveying clamping jaw, the third X-axis linear motor, the Y-axis linear motor, the first Z-axis electric cylinder and the portal frame are arranged;

the conveying clamping jaw is connected with the first Z-axis electric cylinder and driven by the first Z-axis electric cylinder to move along the Z axis;

the whole formed by the carrying clamping jaw and the first Z-axis electric cylinder is connected with the third X-axis linear motor and is driven by the third X-axis linear motor to move along the X axis;

the top of the gantry is a rectangular frame, the Y-axis linear motor is arranged on a frame of the rectangular frame arranged along the Y direction, and the whole formed by the carrying clamping jaw, the first Z-axis electric cylinder and the third X-axis linear motor is connected with the Y-axis linear motor and driven by the Y-axis linear motor to move along the Y axis;

the handling jaw comprises: a clamping jaw cylinder and a pressing unit; the pressing unit includes: the device comprises an upper pressing plate and a lower pressing plate, wherein a buffer spring is arranged between the upper pressing plate and the lower pressing plate; the clamping jaw air cylinder is connected below the pressing unit, the pressing unit is driven by the first Z-axis electric cylinder, and the workpiece clamped and released by the clamping jaw air cylinder is pressed downwards;

the second carrying unit includes: the material taking sucker is arranged on the base plate;

the material taking sucker is connected with the second Z-axis electric cylinder and is driven by the second Z-axis electric cylinder to move along the Z axis;

the whole formed by the material taking sucker and the second Z-axis electric cylinder is connected with the fourth X-axis linear motor and is driven by the fourth X-axis linear motor to move along the X axis;

the base plate is arranged on a frame of the rectangular frame arranged along the X direction and is positioned on one side of the Y-axis linear motor, the fourth X-axis linear motor is arranged on the base plate, and a sliding groove for avoiding the second Z-axis electric cylinder is further formed in the base plate.

As an improvement of the feeding, tightening and riveting apparatus of the present invention, the tightening mechanism includes: screwing a screw head, fixing a tool and a Z-axis motor; the screw twisting head is in transmission connection with the Z-axis motor, can pivot by taking the axis of the screw twisting head as a rotating shaft and can be driven by the Z-axis motor to move up and down, and the fixing tool is positioned below the screw twisting head;

the riveting mechanism includes: riveting head, rotatory frock and jar of pressing, the inside riveting space that forms of riveting head, it is protruding to be provided with the riveting on the inside wall of riveting head, riveting head with press the cylinder transmission to be connected, and can press the cylinder drive to carry out elevating movement down, rotatory frock is located riveting head below.

As the improvement of the feeding, screwing and riveting equipment, the fixing tool comprises: the device comprises a first fixed seat, a pre-pressing cylinder and a first X-axis motor;

the first fixing seat is in transmission connection with a sliding block of the first X-axis motor and is driven by the first X-axis motor to reciprocate between a feeding position and a screwing position; the pre-pressing cylinders are symmetrically arranged on two sides of the tightening position and can clamp and fix the first fixing seat when the first fixing seat moves to the tightening position.

As an improvement of the feeding, screwing and riveting device, the screwing mechanism further comprises a dust collection unit, and the dust collection unit is located at a discharging position of the screwing mechanism;

the dust suction unit includes: the dust collection device comprises a dust collection port, a Z-axis cylinder and a rotating motor; the dust collection port is connected to a support, one end of the support is in transmission connection with the Z-axis cylinder, and the Z-axis cylinder drives the dust collection port to move up and down; the rotary motor is in transmission connection with the Z-axis cylinder and can drive the dust collection port and the Z-axis cylinder to pivot integrally.

As an improvement of the feeding, screwing and riveting equipment, the rotary tool comprises: the second fixing seat, the base, the motor and the second X-axis motor;

the second fixed seat is detachably arranged on the base, and the second fixed seat and the base are integrally in transmission connection with the motor and are driven by the motor to pivot within a preset angle range; the second fixing seat, the base and the motor are integrally in transmission connection with a sliding block of the second X-axis motor, and the second X-axis motor drives the second X-axis motor to reciprocate between a feeding position and a riveting position.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the end cover, the gasket and the nut can be continuously fed at the same station by arranging the plurality of conveying lines, so that the assembly efficiency of the rotor is obviously improved. Meanwhile, the invention is also provided with a conveying mechanism with double conveying units, and the conveying mechanism can respectively circulate and discharge the end cover, the gasket and the nut, thereby further improving the feeding efficiency of each workpiece. And above-mentioned transport mechanism is integrated to be set up, when its motion stroke can cover many transfer chains, shared space is less.

Furthermore, the tightening mechanism and the riveting mechanism are arranged side by side, and the continuous tightening and riveting of the nut can be sequentially realized with the aid of a robot. The tightening mechanism is also provided with a dust suction unit which can suck the scraps generated during tightening, so that the surface cleanness of the product is ensured. In addition, the tightening mechanism and the riveting mechanism are respectively arranged on respective work tables, and the X-axis motors of the tightening mechanism and the riveting mechanism are arranged below the work tables, so that the space above the work tables is saved, and the reasonable arrangement of other structures is facilitated.

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, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a feeding, tightening and riveting apparatus according to an embodiment of the present invention;

FIG. 2 is a top view of the multi-feed line loading device of FIG. 1;

FIG. 3 is a perspective view of the multi-conveyor loading device of FIG. 1;

FIG. 4 is an enlarged perspective view of the nut feeding conveyor line of FIG. 3;

FIG. 5 is an enlarged perspective view of the transfer mechanism of FIG. 3; .

FIG. 6 is a front view of the handling mechanism of FIG. 5;

FIG. 7 is an enlarged perspective view of the carrying mechanism in the present embodiment;

FIG. 8 is a schematic perspective view of the dual station assembly apparatus and robot of FIG. 1;

fig. 9 is an enlarged perspective view of the tightening mechanism in the present embodiment;

FIG. 10 is a side view of the tightening mechanism in this embodiment;

fig. 11 is an enlarged perspective view of the riveting mechanism in the present embodiment;

fig. 12 is a side view of the riveting mechanism in this embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the invention provides a feeding, screwing and riveting device, which can realize continuous feeding of an end cover, a gasket and a nut at the same station, and continuously pre-assemble workpieces on a rotating shaft sleeved with an iron core. Meanwhile, the rotating shaft preassembled with the end cover, the gasket and the nut can be further screwed and riveted, and the assembly and fixation of all workpieces are completed, so that the assembly efficiency of the rotor is remarkably improved.

As shown in fig. 1, the material loading, screwing and riveting apparatus of the present embodiment includes: a multi-conveyor-line feeding device 100, a double-station assembling device 200, a conveying transition line 300, and a robot 400.

The multi-conveyor-line feeding device 100 is used for realizing continuous feeding and pre-assembly of end covers, gaskets and nuts, and the multi-conveyor-line feeding device 100 is arranged along the X-axis direction.

The transport transition line 300 is used to provide a spindle pre-assembled with the end caps, spacers, and nuts, and the transport transition line 300 extends along the Y-axis and is located at the blanking position of the multi-feed line loading apparatus to receive each workpiece supplied from the multi-feed line loading apparatus 100.

The double-station assembling device 200 is used for receiving the rotating shaft which is conveyed by the conveying transition line 300 and is pre-assembled with the end covers, the gaskets and the nuts, screwing and riveting the pre-assembled nuts are further achieved, and then assembling and fixing of all workpieces are completed. The double-station assembling device and the multi-conveying-line feeding device are arranged side by side along the Y axis.

The robot 400 is used for rotating a rotating shaft assembled with an end cover, a gasket, and a nut, and the robot 400 is located in an area surrounded by the multi-conveyor-line feeding device 100 and the double-station assembling device 200.

As shown in fig. 2, the multi-conveyer feeder 100 includes, arranged side by side along the X-axis: end cap feed transfer line 10, gasket feed transfer line 20, nut feed transfer line 30, and handling mechanism 40. Thus, through the arrangement of the conveying lines, the end cover, the gasket and the nut for assembling the rotor can be sequentially provided according to the assembling sequence. Any one of the conveying lines can be arranged into a plurality of side-by-side lines according to requirements.

As shown in fig. 3, the end cap feeding conveyor line 10 includes: a first conveyor line body 11 and a first boat 12. The first carrier disc 12 is used for carrying end covers to be loaded. The end caps can thus be moved with the first boat 12 from the loading position to the unloading position along the X-axis, driven by the first conveyor line body 11. In one embodiment, the first conveyor line body 11 is a first X-axis linear motor, and the first loading tray 12 is connected to a slide block driven by the first X-axis linear motor.

Since the end cover needs to be assembled on the rotating shaft of the rotor, a through hole is formed in the middle of the end cover. In order to facilitate loading of the first tray 12 for loading the end caps, at least one set of first upright posts 121 suitable for stacking and sleeving a plurality of end caps is further disposed on the first tray 12. When the first posts 121 are provided in plural sets, the plural sets of first posts 121 are provided at intervals in the X-axis direction. So, be convenient for a material loading provide the end cover that the multiunit stacked.

The gasket feed conveyor line 20 includes: a second conveyor line body 21 and a second carriage plate 22, the second carriage plate 22 being driven by the second conveyor line body 21 to reciprocate along the X-axis. Thus, the gasket can move from the loading position to the unloading position along the X-axis with the second boat 22 driven by the second conveyor line body 21. In one embodiment, the second conveyor line body 21 is a second X-axis linear motor, and the second boat 22 is connected to a slider driven by the second X-axis linear motor.

Since the spacer needs to be fitted to the rotating shaft of the rotor, it has a through hole in the middle. In order to facilitate the loading of the second tray 22 with the gaskets, at least one set of second upright posts 221 suitable for stacking and sleeving a plurality of gaskets is further disposed on the second tray 22. When the second pillars 221 are provided in plural sets, the plural sets of second pillars 221 are provided at intervals in the X-axis direction. Therefore, a plurality of groups of stacked gaskets can be conveniently supplied by one-time feeding.

As shown in fig. 4, the nut feeding line 30 includes: a third conveyor line body 31 and a plurality of jigs 32. The jigs 32 are disposed on the third conveyor line body 31 at intervals, and are driven by the third conveyor line body 31 to reciprocate along the X axis.

Specifically, the third conveyor line body 31 includes: a drive unit 33 and a transmission unit 34.

The driving unit 33 is used to provide power required for the operation of the third wire body 31 of the present embodiment. The drive unit 33 includes: a drive motor 331 and a divider 332. The driving motor 331 drives the transmission unit 34 to operate through the divider 332. Thus, the divider 332 is arranged to facilitate the driving motor 331 to drive the transmission unit 34 to move according to the required unit distance.

The transmission unit 34 includes: the chain 341 is sleeved on the chain wheels 342, the driving unit 33 is in transmission connection with one chain wheel 342, and the plurality of jigs 32 are arranged on the chain 341 at intervals and move circularly along with the chain 341. In this way, the nut can be fixed by the chain 341 with the jig 32. In order to fix the nut, a trough suitable for placing the nut is arranged on the jig 32.

In one embodiment, the plurality of sprockets 342 are respectively disposed at an upstream end and a downstream end according to a conveying direction, two sets of sprockets 342 are disposed at each end, and the sprockets 342 are linked by a chain 341. At this time, the driving motor 331 is drivingly connected to a sprocket 342 through the divider 332 and the driving wheel and belt.

Thus, when the driving motor 331 is operated, it can drive the chain 341 to perform a circular motion through the sprocket 342 in transmission connection therewith. In one embodiment, the driving motor 331 is vertically disposed and is drivingly connected to the sprocket 342 through a divider 332 coaxially disposed with the sprocket 342. Therefore, the driving motor 331 can drive the chain 341 to move according to the required unit distance, so as to realize the accurate feeding of the nut.

In order to facilitate the connection between the chain 341 and the jig 32, the transmission units 34 are arranged in two groups, the sprockets 342 of the two groups of transmission units 34 are arranged side by side, and two sprockets 342 arranged oppositely at random are linked through a transmission shaft. Meanwhile, the nut feeding conveyor line 30 further comprises two vertical plates 35 which are arranged oppositely, and each transmission shaft is pivotally connected between the two vertical plates 35.

At this time, the jigs 32 are connected to the chains 341 of the two sets of transmission units 34, so that each jig 32 performs a circular motion along with the chains 341. In order to convey a plurality of nuts when the chain 341 moves a unit distance, two material tanks arranged side by side are provided on any one of the jigs 32.

The carrying mechanism 40 is positioned at the downstream end of each conveying line and is provided with double carrying units, and the double carrying units can respectively carry out turnover and blanking on the end cover, the gasket and the nut, so that the feeding efficiency of each workpiece is further improved.

As shown in fig. 5 and 6, the conveyance mechanism 40 includes: a first conveyance unit 41 and a second conveyance unit 42.

The first conveying unit 41 performs three-dimensional movement along XYZ axes, and performs turnaround blanking of the end caps conveyed by the end cap feeding conveyor line 10 and the gaskets conveyed by the gasket feeding conveyor line 20. The first carrying unit 41 includes: a carrying jaw 411, a third X-axis linear motor 412, a Y-axis linear motor 413, a first Z-axis electric cylinder 414, and a gantry 415.

To achieve three-dimensional movement, the handling jaw 411 is connected to a first Z-axis electric cylinder 414 and is driven by it to move along the Z-axis. In this way, the lifting movement of the carrying jaw 411 can be realized with reference to the orientation shown in fig. 4.

The entire transport gripper 411 and the first Z-axis electric cylinder 414 are connected to a third X-axis linear motor 412 and driven to move along the X-axis. In order to facilitate the whole movement of the carrying clamping jaw 411 and the first Z-axis electric cylinder 414, two X-axis sliding rails are further arranged on the motor base where the third X-axis linear motor 412 is located. In this way, the forward and backward movement of the carrying jaw 411 can be achieved with reference to the orientation shown in fig. 4.

The top of the gantry 415 is a rectangular frame, and the Y-axis linear motor 413 is disposed on a frame of the rectangular frame along the Y-direction. The entire transport gripper 411, the first Z-axis electric cylinder 414, and the third X-axis linear motor 412 are connected to and driven by a Y-axis linear motor 413 to move along the Y-axis. In order to facilitate the whole movement of the carrying clamping jaw 411, the first Z-axis electric cylinder 414 and the third X-axis linear motor 412, two frames of the rectangular frame arranged along the Y direction are also respectively provided with a Y-axis sliding rail. In this way, the left-right movement of the carrying jaw 411 can be realized with reference to the orientation shown in fig. 4.

As shown in connection with fig. 7, the handling jaw 411 includes: a jaw cylinder 416, and a pressing unit 417. Wherein the pressing unit 417 includes: the upper pressing plate 418 and the lower pressing plate 419 are provided with a buffer spring 420 between the upper pressing plate 418 and the lower pressing plate 419. The jaw cylinder 416 is connected below the pressing unit 417. The pressing unit 417 is driven by the first Z-axis electric cylinder 414, and presses down the workpiece clamped and released by the clamp cylinder 416. Thus, the clamping jaw air cylinder 416 can move to the position above the end cover feeding conveying line 10 at first, clamp the end cover and further drive the end cover to rotate and discharge; and then the gasket is moved to the upper part of the gasket feeding conveying line 20, and the gasket is clamped and further driven to be in turnover and blanking.

The second conveying unit 42 is integrated with the first conveying unit 41, and performs turnover blanking on the nuts conveyed by the nut feeding line 30. In this way, by integrally providing the first carrying unit 41 and the second carrying unit 42, the occupied space is small while the movement stroke thereof can cover a plurality of conveying lines.

The second carrying unit 42 includes: base plate 421, get material sucking disc 422, fourth X axle linear electric motor 423 and second Z axle electric cylinder 424. In order to realize the integrated arrangement, the substrate 421 is disposed on the frame of the rectangular frame along the X direction and is located at one side of the Y-axis linear motor 413, the fourth X-axis linear motor 423 is disposed on the substrate 421, and the substrate 421 is further provided with a chute avoiding the second Z-axis electric cylinder 424.

The material-taking suction cup 422 is connected with the second Z-axis electric cylinder 424 and is driven by the second Z-axis electric cylinder to move along the Z-axis. Thus, the material extracting suction cup 422 can be raised and lowered with reference to the orientation shown in fig. 4.

The whole formed by the material taking sucker 422 and the second Z-axis electric cylinder 424 is connected with the fourth X-axis linear motor 423 and is driven by the fourth X-axis linear motor to move along the X axis. In order to facilitate the overall movement of the material taking suction cup 422 and the second Z-axis electric cylinder 424, two X-axis slide rails are further arranged on the substrate 421 where the fourth X-axis linear motor 423 is located. In this manner, forward and backward movement of the take-up suction cup 422 can be achieved with reference to the orientation shown in FIG. 4. So, get material sucking disc 422 and can move to the top of nut material loading transfer chain 30, absorb the nut and further drive its turnover unloading.

The conveying transition line 300 is used to provide a rotating shaft, and the end caps, the gaskets, and the nuts provided by the multi-conveying-line feeding device 100 are sequentially pre-installed on the provided rotating shaft under the driving of the carrying mechanism 40. This transport transition line 300 can also adopt a sprocket and chain transport structure, which is similar in structure to the nut feeding conveyor line 30, except that the jig that moves synchronously with the chain is set to be a jig suitable for fixing the rotating shaft. Therefore, the structure of the conveying transition line 300 will not be described repeatedly.

As shown in fig. 8, the double station assembling apparatus 200 includes: a tightening mechanism 210 and a staking mechanism 230.

The tightening mechanism 210 and the caulking mechanism 230 are arranged side by side within a turnaround range covered by the robot 400, and the robot 400 makes a turnaround of the workpiece from the tightening mechanism 210 to the caulking mechanism 230. With the aid of the robot 400, the tightening mechanism 210 and the riveting mechanism 230 can continuously tighten and rivet nuts, thereby significantly improving the assembly efficiency of the rotor. In one embodiment, robot 400 may be a six-axis industrial robot.

As shown in fig. 9 and 10, the tightening mechanism 210 includes: a screw head 211, a fixing tool 212 and a Z-axis motor 213.

Wherein, screw head 211 has the die cavity with nut looks adaptation, should screw head 211 and Z axle motor 213 transmission be connected, and screw head 211 can use self axis to pivot as the pivot to can be carried out elevating movement by Z axle motor 213 drive.

In this way, when the Z-axis motor 213 drives the screwing head 211 to descend to the working position, the screwing head 211 can screw the nut pre-assembled on the rotating shaft through the self-pivoting motion. In one embodiment, the screwing head 211 and its axial driving part form a screw gun, which is integrally driven to move up and down by the Z-axis motor 213.

The fixing tool 212 is used for fixing the rotating shaft to be screwed and turning the rotating shaft to be screwed below the screwing head 211. Specifically, the fixing tool 212 is disposed below the screwing head 211, and includes: a first fixing seat 214, a pre-pressing cylinder 215 and a first X-axis motor 216.

Wherein, first fixing base 214 includes: the fixing base comprises a fixing base body 217 and a clamp 218 arranged on the fixing base body 217, wherein a fixing groove suitable for clamping a workpiece is formed in the clamp 218. In this way, the workpiece transferred by the robot 400 can be axially and radially fixed by the fixing groove of the fixing base body 217. The first fixed base 214 is in transmission connection with a slide block of a first X-axis motor 216 and is driven by the first X-axis motor 216 to reciprocate between a loading position and a tightening position. Thus, the first X-axis motor 216 can drive the workpiece on the first fixing base 214 to be rotated below the screwing head 211.

The pre-pressing cylinders 215 are used for keeping the first fixing base 214 stable during tightening, and for achieving the above purpose, the pre-pressing cylinders 215 are symmetrically disposed on two sides of the tightening position and can push the clamping blocks connected with the first fixing base 214 to clamp and fix the two sides of the first fixing base 214 when the first fixing base 214 moves to the tightening position.

Fixed frock 212 is located a workstation 219, and first X axle motor 216 is located workstation 219 below, and the slider of first X axle motor 216 stretches out from workstation 219 to be connected with first fixing base 214 transmission, still be provided with the slide rail that is suitable for first fixing base 214 motion on the workstation 219. So, through arranging first X axle motor 216 in the below of workstation 219, can practice thrift the space above workstation 219, and then be convenient for the rational arrangement of all the other structures.

In addition, the tightening mechanism 210 further includes a dust suction unit 220, and the dust suction unit 220 is located at a blanking position of the tightening mechanism 210. Thus, the dust suction unit 220 can suck the scraps generated during screwing, and further is beneficial to ensuring the surface cleanness of the product. Specifically, the dust suction unit 220 includes: a dust suction port 221, a Z-axis cylinder 222, and a rotating motor 223.

Wherein, the dust suction port 221 communicates with an external dust suction apparatus. Meanwhile, the dust suction port 221 is connected to a bracket, one end of the bracket is in transmission connection with the Z-axis cylinder 222, and the Z-axis cylinder 222 drives the dust suction port 221 to move up and down. The rotating motor 223 is in transmission connection with the Z-axis cylinder 222 and can drive the dust suction port 221 and the Z-axis cylinder 222 to integrally pivot. Thus, the dust suction port 221 is located at a position where it does not interfere with the workpiece when the workpiece is loaded. When the nut is screwed on the workpiece for blanking, the dust suction port 221 can move to the upper part of the workpiece under the driving of the rotating motor 223, and suck the scraps, dust and the like on the surface of the workpiece.

As shown in fig. 11 and 12, the riveting mechanism 230 includes: riveting head 231, rotating tool 232, and pressing cylinder 233.

Wherein, the riveting head 231 is internally provided with a riveting space, and the inner side wall of the riveting head 231 is provided with a riveting bulge. The riveting head 231 is connected with the pressing cylinder 233 in a transmission manner and can move up and down under the driving of the pressing cylinder 233. Thus, when the pressing cylinder 233 drives the riveting head 231 to descend to the working position, the riveting head 231 acts on the nut through the riveting protrusion on the inner side wall thereof, so as to perform riveting processing on the nut.

The rotating tool 232 is used for applying a certain torque force to the workpiece while riveting and pressing, and further screwing the nut. Specifically, the rotating tooling 232 is located below the riveting head 231, which includes: a second fixed mount 234, a base 235, a motor 236, and a second X-axis motor 237.

Wherein, the second fixing seat 234 includes: the fixture comprises a fixing seat body 238 and a fixture 239 arranged on the fixing seat body 238, wherein the fixture 239 is provided with a fixing groove suitable for clamping a workpiece. In this way, the workpiece that has been rotated by the robot 400 can be axially and radially fixed by the fixing grooves of the fixing base body 238.

The second fixing seat 234 is detachably disposed on the base 235. Therefore, the matched tool can be replaced conveniently according to workpieces of different models. The second fixed seat 234 and the base 235 are integrally connected with the motor 236 in a transmission manner, and are driven by the motor 236 to pivot within a preset angle range. Thus, the second fixed seat 234 is driven by the motor 236 to rotate, and a corresponding torque force can be provided to the workpiece to assist in further tightening.

The second fixing seat 234, the base 235 and the motor 236 are integrally connected with a slide block of a second X-axis motor 237 in a transmission manner, and are driven by the second X-axis motor 237 to reciprocate between a feeding position and a riveting position. In this way, the second X-axis motor 237 can drive the workpiece on the second fixing base 234 to rotate to the position below the screwing head 211.

The riveting mechanism 230 is located on a workbench 240, the second X-axis motor 237 is located below the workbench 240, a slider of the second X-axis motor 237 extends out of the workbench 240 and is in transmission connection with the base 235, and a slide rail suitable for the base 235 to move is further arranged on the workbench 240. Thus, the second X-axis motor 237 is disposed below the worktable 240, so that the space above the worktable 240 can be saved, and the reasonable arrangement of the rest structures is facilitated.

In conclusion, the end cover, the gasket and the nut can be continuously fed at the same station by arranging the plurality of conveying lines, so that the assembly efficiency of the rotor is remarkably improved. Meanwhile, the invention is also provided with a conveying mechanism with double conveying units, and the conveying mechanism can respectively circulate and discharge the end cover, the gasket and the nut, thereby further improving the feeding efficiency of each workpiece. And above-mentioned transport mechanism is integrated to be set up, when its motion stroke can cover many transfer chains, shared space is less.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a riveting equipment is screwed up to material loading, its characterized in that, riveting equipment is screwed up to material loading includes: the device comprises a multi-conveying-line feeding device, a double-station assembling device, a conveying transition line and a robot;

many transfer chain loading attachment includes that the axis that follows sets up side by side: the device comprises an end cover feeding conveying line, a gasket feeding conveying line, a nut feeding conveying line and a carrying mechanism; the conveying mechanism is positioned at the downstream position of each conveying line, and workpieces provided by each conveying line are sequentially preassembled on a rotating shaft provided by the conveying transition line;

2. The charging, tightening and riveting apparatus according to claim 1, wherein the end cap charging conveyor line comprises: the first conveying line body and the first carrying disc are driven by the first conveying line body to reciprocate along an X axis;

the gasket material loading conveying line comprises: the second conveying line body and the second carrying disc are driven by the second conveying line body to reciprocate along the X axis;

3. The feeding, screwing and riveting device according to claim 1, wherein the first conveyor line body is a first X-axis linear motor, the first carrying disc is connected to a slide block driven by the first X-axis linear motor, and at least one group of first stand columns suitable for stacking and sleeving a plurality of end covers are arranged on the first carrying disc;

4. The feeding, screwing and riveting device according to claim 3, wherein the plurality of chain wheels are respectively arranged at the upstream end and the downstream end according to the conveying direction, two groups of chain wheels which are arranged up and down are arranged at either end, and the chain wheels are linked through the chain; the driving unit includes: a driving motor and a divider; the driving motor is in transmission connection with a chain wheel through the divider.

5. The feeding, screwing and riveting device according to claim 3, wherein the transmission units are arranged in two groups, the chain wheels of the two groups of transmission units are arranged side by side from left to right, and any two chain wheels which are arranged oppositely are linked through a transmission shaft; the chain of the two groups of transmission units is connected with a plurality of jigs, any jig is provided with two material troughs which are arranged side by side and suitable for placing nuts, and each jig moves circularly along with the chain.

6. A charging screw riveting apparatus according to claim 1, wherein the handling mechanism comprises: a first carrying unit and a second carrying unit; the first carrying unit performs three-dimensional movement along XYZ axes, and performs turnover blanking on the end covers conveyed by the end cover feeding conveying line and the gaskets conveyed by the gasket feeding conveying line; the second carrying unit is integrated on the first carrying unit, and the nuts conveyed by the nut feeding conveying line are subjected to turnover discharging.

7. A charging screw-down riveting apparatus according to claim 6, wherein the first handling unit comprises: the third X-axis linear motor, the Y-axis linear motor, the first Z-axis electric cylinder and the portal frame are arranged on the conveying clamping jaw;

the carrying clamping jaw is connected with the first Z-axis electric cylinder and driven by the first Z-axis electric cylinder to move along the Z axis;

8. The feed screw clinch device of claim 1, wherein the tightening mechanism includes: screwing a screw head, fixing a tool and a Z-axis motor; the screw twisting head is in transmission connection with the Z-axis motor, can pivot by taking the axis of the screw twisting head as a rotating shaft and can be driven by the Z-axis motor to move up and down, and the fixing tool is positioned below the screw twisting head;

9. The material loading, tightening and riveting equipment according to claim 8, wherein the fixing tool comprises: the device comprises a first fixed seat, a pre-pressing cylinder and a first X-axis motor;

the first fixing seat is in transmission connection with a sliding block of the first X-axis motor and is driven by the first X-axis motor to reciprocate between a feeding position and a screwing position; the pre-pressing air cylinders are symmetrically arranged on two sides of the tightening position and can be clamped and fixed when the first fixing seat moves to the tightening position.

10. The charging screw down riveting apparatus according to claim 8, wherein the tightening mechanism further comprises a dust suction unit located at a blanking position of the tightening mechanism;

the dust suction unit includes: the dust collection device comprises a dust collection port, a Z-axis cylinder and a rotating motor; the dust collection port is connected to a support, one end of the support is in transmission connection with the Z-axis cylinder, and the Z-axis cylinder drives the dust collection port to move up and down; the rotary motor is connected with the Z-axis cylinder in a transmission manner and can drive the dust collection port and the Z-axis cylinder to integrally pivot.

11. The material loading screwing and riveting equipment according to claim 8, wherein the rotating tool comprises: the second fixing seat, the base, the motor and the second X-axis motor;