CN109822338B

CN109822338B - Automatic wheat wheel assembling mechanism

Info

Publication number: CN109822338B
Application number: CN201910111590.8A
Authority: CN
Inventors: 康怀旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2021-02-05
Anticipated expiration: 2039-02-12
Also published as: CN109822338A

Abstract

Automatic assembly mechanism of wheat wheel relates to automatic equipment technical field of wheat wheel. The wheat wheel assembling device solves the technical problems of lack of automatic assembling equipment, low assembling efficiency and poor quality in the existing wheat wheel assembling process, and comprises a bottom plate, wherein a disc driving mechanism is arranged on the bottom plate, and a wheat wheel assembling jig is arranged on the disc driving mechanism; the periphery of the disc driving mechanism is provided with a wheat wheel cover plate direction selecting and feeding mechanism, a roller wheel feeding and assembling mechanism, a screw locking mechanism and a discharging mechanism; not only can the full automatization accomplish the pivot cartridge operation at gyro wheel both ends, apron and upper cover plate under can also the automation acquireing, the wheat wheel assembly tool on the disc was put into to apron and upper cover plate under the accurate clamp was got steadily, has effectively promoted production efficiency, has reduced the cost of labor.

Description

Automatic wheat wheel assembling mechanism

Technical Field

The invention relates to the technical field of automatic wheat wheel assembling equipment.

Background

The wheat wheel, also known as a mecanum wheel, is based on the principle of a central wheel having a number of wheels located at the periphery of the wheel, the angled peripheral wheels translating a portion of the wheel steering force to a wheel normal force. The structure is compact, the movement is flexible, and the omnidirectional wheel is very successful. There are 4 these wheels to make up, can be more nimble convenient realization all direction movement function.

As shown in fig. 1, the assembly of the wheat wheel is roughly as follows: firstly, inserting a shaft pin 92 into each of two ends of a roller 91, then inserting the shaft pin at one end of the roller 91 into a shaft hole on a lower cover plate 93 in an inclined state, then covering an upper cover plate 94, inserting the shaft pin 92 at the other end of the roller 91 into the shaft hole on the upper cover plate 94, and locking and fixing the shaft pins through screws; the lower cover plate 93 is structurally symmetrical to the upper cover plate 94.

In the existing wheat wheel assembling process, a mechanism capable of automatically inserting shaft pins into two ends of a roller is lacked, and a mechanism for automatically assembling a lower cover plate 93 and an upper cover plate 94 is also lacked, so that the technical problems of low assembling efficiency and poor quality are solved.

Disclosure of Invention

In summary, the present invention is directed to solve the technical problems of lack of equipment capable of automated assembling, low assembling efficiency and poor quality in the existing wheat wheel assembling process, and provides an automated wheat wheel assembling mechanism.

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

the automatic wheat wheel assembling mechanism is characterized by comprising a bottom plate, wherein a disc driving mechanism is arranged on the bottom plate, and a wheat wheel assembling jig is arranged on the disc driving mechanism; the periphery of the disc driving mechanism is provided with a wheat wheel cover plate direction selecting and feeding mechanism, a roller wheel feeding and assembling mechanism, a screw locking mechanism and a discharging mechanism;

the wheat wheel cover plate direction selecting and feeding mechanism comprises a cover plate conveying mechanism, a cover plate feeding table, a direction selecting and identifying mechanism and a mechanical arm grabbing mechanism which are arranged on a bottom plate; the cover plate feeding table is arranged at the discharge end of the cover plate conveying mechanism, and a cover plate groove butted with the discharge port of the cover plate conveying mechanism is formed in the top surface of the cover plate feeding table; the direction selection identification mechanism comprises an upright post, a limiting boss is arranged on the upright post, a longitudinal groove is arranged on the upright post, a positioning detection elastic sheet is arranged in the longitudinal groove, and the upper end of the positioning detection elastic sheet is arranged in the longitudinal groove and is hinged with the upright post through an elastic sheet pin shaft; in a normal state, the lower end of the positioning detection elastic sheet elastically extends out of the longitudinal groove, a positioning switch for detecting the ejection state of the positioning detection elastic sheet is arranged on the stand column below the limiting boss; the mechanical arm grabbing mechanism comprises a cover plate clamp, the cover plate clamp is connected with a cover plate rotating mechanism used for driving the cover plate clamp to rotate, and the cover plate rotating mechanism is connected with a mechanical arm body used for driving the cover plate clamp to move from a cover plate feeding table to the direction selection identification mechanism and from the direction selection identification mechanism to the wheat wheel assembling jig;

the roller feeding and assembling mechanism comprises a roller feeding mechanism, a shaft pin inserting mechanism, a roller turnover mechanism, a first clamping mechanism and a second clamping mechanism which are arranged on the bottom plate;

the roller feeding mechanism comprises a feeding seat, a roller feeding pipeline is arranged on the feeding seat, and a feeding groove to be clamped and butted with the roller feeding pipeline is arranged at the outlet of the feeding pipeline;

the pin inserting mechanism comprises an assembling fixed seat, a roller fixing groove is arranged on the assembling fixed seat, a pin inserting hole is formed in the side wall of the roller fixing groove, and a thimble structure corresponding to the pin inserting hole is arranged on the side edge of the assembling fixed seat; the assembling fixing seat is also provided with a shaft pin translation sliding block, the shaft pin translation sliding block is connected with a shaft pin translation sliding block driving mechanism, and the shaft pin translation sliding block is provided with a shaft pin storage groove which only contains one shaft pin at a time; the assembling fixing seat is also provided with a shaft pin feeding channel which is butted with the shaft pin storage groove on the shaft pin translation sliding block in a pushing state, and the shaft pin feeding channel is connected with a shaft pin feeding pipeline;

the roller turnover mechanism comprises a roller arrangement groove, a discharge port of the roller arrangement groove is provided with a turnover block, the turnover block is connected with a turnover block driving mechanism for driving the turnover block to turn around a shaft, and the turnover block is provided with a roller clamping groove which is butted with the discharge port of the roller arrangement groove;

the first clamping mechanism comprises a first clamp moving platform, and the first clamp moving platform is provided with a roller material moving clamp which is used for clamping a roller from a feeding groove to be clamped of the roller feeding mechanism to a roller fixing groove of the shaft pin inserting mechanism and clamping the roller from the roller fixing groove to a roller arrangement groove of the roller turnover mechanism;

the second clamping mechanism comprises a second clamp moving platform, and the second clamp moving platform is provided with a roller assembly clamp which is used for obliquely clamping and moving out of a roller clamping groove of the roller turnover mechanism and obliquely inserting into the wheat wheel assembly jig;

the screw locking mechanism comprises an electric screwdriver and an electric screwdriver driving mechanism for driving the electric screwdriver to horizontally and vertically move;

the discharging mechanism comprises a discharging clamp and a discharging output mechanism arranged in the moving range of the discharging clamp.

The technical scheme for further limiting the invention comprises the following steps:

the cover plate conveying mechanism comprises a cover plate flow passage, the bottom of the cover plate flow passage is provided with a conveying belt mechanism, and the top of the cover plate flow passage is provided with a cover plate limiting part; the width of the cover plate flow channel is the width capable of accommodating the single-row cover plate transmission, and the width is smaller than the addendum circle diameter of the cover plate; the cover plate feeding table is provided with a group of lifting elastic stop blocks positioned on the side edge of the cover plate groove.

Two clamping arms of the cover plate clamp are provided with tooth grooves matched with the teeth of the cover plate; and a clamping support sleeve is arranged between the two clamping arms of the cover plate clamp.

The left side wall and the right side wall of the roller fixing groove of the shaft pin inserting mechanism are respectively provided with a shaft pin inserting hole corresponding to the shaft holes of the left end part and the right end part of the roller in the roller fixing groove, and two side edges of the assembling fixing seat are respectively provided with a thimble structure corresponding to the two shaft pin inserting holes.

The pivot pin inserting mechanism further comprises a roller clamping swing arm, the roller clamping swing arm is connected with the assembly fixing seat in a swinging mode through a shaft, a compression hook arranged above the roller fixing groove is arranged at the top end of the roller clamping swing arm, and the bottom end of the roller clamping swing arm is connected with a swing arm driving mechanism for driving the roller clamping swing arm to swing.

The thimble structure include the thimble, connect the thimble direction slider of fixed thimble, thimble direction slider and assembly fixing base sliding connection, the trailing end connection of thimble direction slider has the thimble lever, the thimble lever passes through the axle and is connected with assembly fixing base movable support, the other end of thimble lever is connected with thimble actuating mechanism.

The roller turnover mechanism is characterized in that the turnover block of the roller turnover mechanism comprises a fan-shaped main body, one end of the fan-shaped main body is connected with a stand column support through a rotating shaft, the stand column support is fixedly installed on the bottom plate, the other end of the fan-shaped main body is hinged to a turnover block driving mechanism, the fan-shaped main body is connected with a movable clamping block through an elastic guide mechanism, and a roller clamping groove is formed between the fan-shaped main body and the movable clamping block.

The fan-shaped main body and the movable clamping block are provided with cambered surfaces which are both provided with inner concaves.

The first clamp moving platform is provided with a first roller material moving clamp used for clamping rollers from a feeding groove to be clamped of the roller feeding mechanism and placing the clamping rollers into roller fixing grooves of the shaft pin inserting mechanism, and a second roller material moving clamp used for clamping rollers from the roller fixing grooves and placing the clamping rollers into roller arrangement grooves of the roller turnover mechanism; and a clamp rotating mechanism is also arranged between the second roller material moving clamp and the first clamp moving platform.

The first roller material moving clamp and the second roller material moving clamp respectively comprise two clamping arms, and the lower ends of the two clamping arms are respectively provided with two material clamping claws which are distributed side by side at intervals.

The invention has the beneficial effects that: the wheat wheel assembling jig can automatically complete the shaft pin inserting operation of two ends of the roller, can automatically obtain the lower cover plate and the upper cover plate, accurately and stably clamps the lower cover plate and the upper cover plate, and places the lower cover plate and the upper cover plate on the disc, so that the production efficiency is effectively improved, and the labor cost is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of a wheat wheel cover plate direction-selecting feeding mechanism;

FIG. 3 is a schematic top view of the cover plate conveying mechanism and the cover plate feeding table of the wheat wheel cover plate direction selecting and feeding mechanism;

FIG. 4 is a schematic perspective view of a cover plate conveying mechanism and a cover plate feeding table of the wheat wheel cover plate direction selecting and feeding mechanism;

FIG. 5 is a schematic top view of the cover plate;

FIG. 6 is a schematic perspective view of a cover plate;

FIG. 7 is a schematic perspective view of a cover plate feeding table of the wheat wheel cover plate direction selecting and feeding mechanism;

FIG. 8 is a schematic view of a three-dimensional structure of a direction selection identification mechanism of the wheat wheel cover plate direction selection feeding mechanism;

FIG. 9 is a schematic perspective view of a cover plate clamp in a mechanical arm grabbing mechanism of a wheat wheel cover plate direction selecting and feeding mechanism;

FIG. 10 is a schematic view of the structure of the wheat wheel;

FIG. 11 is a schematic perspective view of the roller loading and assembling mechanism;

FIG. 12 is a schematic perspective view of another angle of the roller loading assembly mechanism;

FIG. 13 is an exploded view of the roller loading assembly mechanism;

FIG. 14 is a schematic view of another exploded perspective view of the roller loading assembly mechanism;

FIG. 15 is a schematic perspective view of a shaft pin inserting mechanism of the roller loading and assembling mechanism;

FIG. 16 is an exploded view of FIG. 15;

FIG. 17 is a partial schematic view of another angle of FIG. 15;

fig. 18 is a schematic perspective view of the roller turnover mechanism of the present invention.

Detailed Description

The structure of the present invention will be further described with reference to the accompanying drawings and specific embodiments of the present invention.

Referring to fig. 1, the automatic wheat wheel assembling mechanism of the present invention comprises a bottom plate 1, a disc driving mechanism 401 is arranged on the bottom plate 1, and a wheat wheel assembling jig 402 is arranged on the disc driving mechanism 401; the periphery of the disc driving mechanism 402 is provided with a wheat wheel cover plate direction selecting and feeding mechanism, a roller wheel feeding and assembling mechanism, a screw locking mechanism 301 and a discharging mechanism. Because the lower cover plate 93 and the upper cover plate 94 of the wheat wheel are structurally symmetrical, the initial stage of the assembly of the wheat wheel cover plate selection direction feeding mechanism can be used as the wheat wheel lower cover plate selection direction feeding mechanism and used for installing the lower cover plate 93 on the wheat wheel assembly jig 402, after the lower cover plate 93 on the wheat wheel assembly jig 402 completes the assembly of the roller 91, the wheat wheel cover plate selection direction feeding mechanism can be used as the wheat wheel upper cover plate selection direction feeding mechanism and used for installing the upper cover plate 94 on the wheat wheel assembly jig 402, and the upper cover plate 94 is formed after the lower cover plate 93 is turned over.

Referring to fig. 2 to 9, the following description will be made by taking an example of assembling the upper cover plate 94 on the wheat wheel cover plate direction selecting and feeding mechanism, where the wheat wheel cover plate direction selecting and feeding mechanism includes a cover plate conveying mechanism 101, a cover plate feeding table 102, a direction selecting and identifying mechanism 103, and a mechanical arm grabbing mechanism 104, which are arranged on the bottom plate 1; the cover plate conveying mechanism 101 is used for being connected with an upstream cover plate discharging mechanism or a cover plate vibrating disc, transmitting the cover plate conveying mechanism into the upper cover plate 94 and conveying the cover plate conveying mechanism to the cover plate feeding table 102; after the upper cover plate 94 is transferred into the cover plate feeding table 102 for preliminary positioning, the mechanical arm grabbing mechanism 104 clamps and places the upper cover plate 94 into the orientation selecting and identifying mechanism 103 for further positioning, and then the mechanical arm grabbing mechanism 104 clamps the upper cover plate 94 onto the wheat wheel assembling jig for assembling.

The cover plate conveying mechanism 101 comprises a cover plate flow channel 1011, a conveyor belt mechanism 1012 is arranged at the bottom of the cover plate flow channel 1011, and a cover plate position-limiting member 1013 is arranged at the top of the cover plate flow channel 1011; the width of the cover plate channel 1011 is a width capable of accommodating the single row of cover plates and is smaller than the addendum circle diameter a of the cover plates. A conveyor mechanism 1012 for conveying the upper lid 94 toward the lid supply station 102; the cover plate position-limiting member 1013 is matched with the cover plate flow passage 1011 having the specific size, so as to sequentially convey the upper cover plate 94 in a single row, and prevent the upper cover plate 94 from arching when being blocked or prevent the upper cover plate 94 from rotating during the conveying process, thereby being unfavorable for the subsequent mechanical arm grabbing mechanism 104 to grab.

The upper cover plate 94 is in a gear-shaped structure, the addendum circle diameter a of the cover plate refers to the distance between two opposite addendum parts, and is also equal to the maximum diameter of the upper cover plate 94, the width of the cover plate flow channel 1011 is smaller than the addendum circle diameter a of the cover plate, and the upper cover plate 94 does not rotate in the conveying process in the cover plate flow channel 1011.

The cover plate feeding table 102 is arranged at the discharge end of the cover plate conveying mechanism 101, and a cover plate groove 1021 butted with the discharge port of the cover plate conveying mechanism 101 is arranged on the top surface of the cover plate feeding table 102; the cover plate feeding table 102 is provided with a set of lifting elastic stoppers 1022 located at the side of the cover plate groove 1021. The two lifting elastic stoppers 1022 are flush with two sides of the cover plate runner 1011, and are pressed downward by the cover plate clamp 1041 of the robot arm gripping mechanism 104 to lower when the robot arm gripping mechanism 104 grips the upper cover plate 94, so as to facilitate the cover plate clamp 1041 to grip the upper cover plate 94 in the cover plate groove 1021. In order to accurately identify whether the upper cover 94 completely enters the cover recess 1021, the other side wall of the cover recess 1021 opposite to the discharge port of the cover conveying mechanism 101 is provided with a tooth socket 1023 matched with the teeth of the cover, and the side edge of the cover feeding table 102 is provided with a cover detection photoelectric switch 1024 corresponding to the tooth socket 1023.

The direction-selecting identification mechanism 103 comprises a column 1031, a limit boss 1032 is arranged on the column 1031, a longitudinal groove 1033 is arranged on the column 1031, a positioning detection elastic sheet 1034 is arranged in the longitudinal groove 1033, and the upper end of the positioning detection elastic sheet 1034 is arranged in the longitudinal groove 1033 and hinged with the column 1031 through an elastic sheet pin shaft; in a normal state, the lower end of the positioning detection elastic sheet 1034 elastically extends out of the longitudinal groove 1033, a positioning switch 1035 for detecting the ejection state of the positioning detection elastic sheet 1034 is arranged on the upright 1031 below the limit boss 1032, and the positioning switch 1035 is preferably a photoelectric switch; when the upper cover plate 94 is sleeved on the upright 1031 under the action of the mechanical arm grabbing mechanism 104, and in the process of sleeving the upper cover plate 94, the positioning detection elastic sheet 1034 is pushed by the inner side edge of the upper cover plate 94, the positioning detection elastic sheet 1034 swings towards the longitudinal groove 1033, the light path of the positioning switch 1035 is conducted, because the inner side edge of the upper cover plate 94 is provided with the positioning notch 941, when the bottom surface of the upper cover plate 94 is attached to the limiting boss 1032 to rotate, and when the positioning notch 941 is rotated to a position corresponding to the positioning detection elastic sheet 1034, the positioning detection elastic sheet 1034 pops out, the light path of the positioning switch 1035 is disconnected, and the mechanical arm grabbing mechanism 104 stops rotating, so that the purpose of selecting the direction of the upper cover plate 94 is realized, and the assembly operation of the upper cover plate.

The mechanical arm grabbing mechanism 104 comprises a cover plate clamp 1041, the cover plate clamp 1041 is connected with a cover plate rotating mechanism used for driving the cover plate clamp 1041 to rotate, and the cover plate rotating mechanism is connected with a mechanical arm body 1042 used for driving the cover plate clamp 1041 to move from the cover plate feeding table 102 to the direction selection identification mechanism 103 and to move from the direction selection identification mechanism 103 to the wheat wheel assembling jig. Since the outer side of the upper cover plate 94 is a tooth-shaped structure, in order to make the cover plate clamp 1041 clamp the upper cover plate 94 better and avoid falling off in the moving process, tooth grooves 10411 which are matched with the teeth of the cover plate are arranged on the two clamping arms of the cover plate clamp 1041. In order to avoid deformation of the upper cover plate 94 when the cover plate clamp 1041 clamps the upper cover plate 94, a clamping support sleeve 10412 is arranged between the two clamping arms of the cover plate clamp 1041.

Referring to fig. 1 and fig. 10 to fig. 18, the wheat roller feeding and assembling mechanism includes a roller feeding mechanism 2, a shaft pin inserting mechanism 3, a roller turning mechanism 4, a first material clamping mechanism 5 and a second material clamping mechanism 6, which are disposed on a bottom plate 1. The roller feed mechanism 2 is used to supply the rollers 91 one by one; the shaft pin inserting mechanism 3 is used for inserting two shaft pins 92 into shaft holes at two ends of the roller 91 respectively; the roller turnover mechanism 4 is used for turning over the roller 91 to an inclined state so as to facilitate subsequent assembly; the first clamping mechanism 5 is used for clamping the rollers 91 in the roller feeding mechanism 2 to the shaft pin inserting mechanism 3 one by one and clamping the rollers 91 in the shaft pin inserting mechanism 3 to the roller turnover mechanism 4; the second material clamping mechanism 6 is used for taking out the roller 91 in the roller turnover mechanism 4 and loading the roller into the shaft hole on the bottom shell 93 in an inclined state.

The roller feeding mechanism 2 comprises a feeding seat 21, a roller feeding pipeline 22 is arranged on the feeding seat 21, and a feeding groove 23 to be clamped and butted with the feeding pipeline 22 is arranged at an outlet of the feeding pipeline 22; the roller 91 is guided in by the roller feeding pipeline 22 and enters the feeding to-be-clamped groove 23 after being guided in, the feeding to-be-clamped groove 23 can only accommodate one roller 91 at a time, and a photoelectric sensor can be added on the side wall of the feeding to-be-clamped groove 23 to detect whether the roller 91 is in place or not; in order to better move the roller 91 to the corresponding position of the feeding to-be-clamped groove 23, a roller push-out mechanism 24 is further arranged on the feeding seat 21 of the roller feeding mechanism 2, the roller push-out mechanism 24 corresponds to the tail end of the feeding to-be-clamped groove 23, and the roller 91 discharged from the feeding pipeline 22 can be pushed out forwards by the roller push-out mechanism 24 and pushed into the feeding to-be-clamped groove 23; the roller pushing-out mechanism 24 may be composed of a piston that pushes forward one roller at a time, which is discharged from the feeding duct 22, to a position corresponding to the feeding groove 23 to be gripped, and a cylinder that drives the piston. The two side walls of the feeding waiting clamping groove 23 are provided with clamp clearance grooves 25, so that the first clamping mechanism 5 enters the roller 91 for clamping the feeding waiting clamping groove 23 from the clamp clearance grooves 25.

The shaft pin inserting mechanism 3 comprises an assembling fixed seat 31, the bottom of the assembling fixed seat 31 is fixedly installed on the bottom plate 1, a roller fixing groove 32 is formed in the assembling fixed seat 31, the bottom of the roller fixing groove 32 is a concave surface matched with the wheel surface of the roller 91, and gaps or grooves for placing shaft pins 92 exposed outside the roller are reserved at two ends of the roller fixing groove 32.

Axle pin inserting holes 36 are formed in the left and right side walls of the roller fixing groove 32 corresponding to axle holes at both ends of the roller in the roller fixing groove 32, and thimble structures 34 corresponding to the axle pin inserting holes 36 are formed on the left and right sides of the assembly fixing seat 31. In order to realize the loading of the shaft pin 92, a shaft pin translation sliding block 33 is further arranged on the assembly fixing seat 31, the shaft pin translation sliding block 33 is connected with a shaft pin translation sliding block driving mechanism 331, and a shaft pin storage groove 332 which only accommodates one shaft pin at a time is arranged on the shaft pin translation sliding block 33; under the reset state of the shaft pin translation sliding block 33, the shaft pin storage groove 332 is butted with the shaft pin insertion hole 36, a shaft pin feeding channel 35 butted with the shaft pin storage groove 332 on the shaft pin translation sliding block 33 in the pushing state is further arranged on the assembly fixing seat 31, and the shaft pin feeding channel 35 is connected with a shaft pin feeding pipeline. In the assembling process, the shaft pins 92 enter the shaft pin feeding channel 35 through the shaft pin feeding pipeline, one shaft pin 92 is blown into the shaft pin storage groove 332 on the shaft pin translation sliding block 33 from the shaft pin feeding channel 35 one by one under the action of air flow in the shaft pin feeding pipeline, the shaft pin translation sliding block 33 translates under the action of the shaft pin translation sliding block driving mechanism 331, the shaft pin storage groove 332 is butted with the shaft pin insertion hole 36, the ejector pin 341 of the ejector pin structure 34 enters the shaft pin insertion hole 36, the shaft pin 92 in the shaft pin storage groove 332 is pushed towards the roller fixing groove 32, and the shaft pin 92 is inserted into the shaft hole of the roller in the roller fixing groove 32, so that shaft pin insertion is completed.

The specific structure of the thimble structure 34 includes a thimble guide slider 342 connected to and fixed to the thimble 341, the thimble guide slider 342 is slidably connected to the assembly fixing seat 31, a thimble lever 343 is connected to a tail end of the thimble guide slider 342, the thimble lever 343 is pivotally supported and connected to the assembly fixing seat 31 by a shaft, and a thimble driving mechanism 344 is connected to the other end of the thimble lever 343. That is, the thimble structure 34 adopts the lever principle to drive the thimble 341, which not only saves labor, but also can be driven by a relatively smaller thimble driving mechanism 344, and simultaneously, the whole structure is compact and the space is saved. The thimble driving mechanism 344 is preferably an air cylinder, the thimble driving mechanism 344 extends, and the thimble lever 343 pushes the fixed thimble 341 to extend forward through the thimble guide slider 342 to push the axle pin 92, so as to implement the axle pin insertion.

In order to better fix the roller 91 during the shaft pin insertion, the shaft pin insertion mechanism 3 further comprises a roller clamping swing arm 37, the roller clamping swing arm 37 is connected with the assembly fixing seat 31 in a swinging mode through a shaft, a pressing hook 371 arranged above the roller fixing groove 32 is arranged at the top end of the roller clamping swing arm 37, and a swing arm driving mechanism 372 driving the roller clamping swing arm 37 to swing is connected to the bottom end of the roller clamping swing arm 37. After the roller 91 is placed into the roller fixing groove 32 by the first material clamping mechanism 5, the first material clamping mechanism 5 maintains the clamp state, the swing arm driving mechanism 372 acts, the roller clamping swing arm 37 swings, and the pressing hook 371 of the roller clamping swing arm 37 presses the roller 91 above the roller fixing groove 32 to wait for the shaft pin to be inserted. In order to facilitate the first material clamping mechanism 5 to clamp the roller 91 in the roller fixing groove 32, the roller fixing groove 32 is also provided with a clamp clearance groove.

The roller turnover mechanism 4 comprises a roller arrangement groove 41, a turnover block 42 is arranged at a discharge port of the roller arrangement groove 41, the turnover block 42 is connected with a turnover block driving mechanism 43 for driving the turnover block 42 to turn around a shaft, and a roller clamping groove 420 which is butted with the discharge port of the roller arrangement groove 41 is arranged on the turnover block 42. The first material clamping mechanism 5 clamps the roller 91 after the shaft pin insertion is completed from the roller fixing groove 32 and puts the roller 91 into the roller arrangement groove 41, waits for the roller to enter the roller clamping groove 420 of the turning block 42 one by one, and after the roller 91 enters the roller clamping groove 420, the turning block driving mechanism 43 acts, the turning block 42 loads the roller 91 to turn over, so that the roller 91 turns over to an inclined state, and the second material clamping mechanism 6 clamps the roller.

In order to facilitate the rollers 91 in the roller arrangement grooves 41 to enter the roller slots 420 of the turning block 42 more smoothly, the bottom of the roller arrangement groove 41 of the roller turning mechanism 4 is provided with a direct vibration feeder 411 for feeding materials in a vibration manner towards the turning block 42.

The gyro wheel 91 upset is being loaded more steadily in order to the gyro wheel draw-in groove 420 of upset piece 42, the upset piece 42 concrete structure of gyro wheel tilting mechanism 4 including fan-shaped main part 421, fan-shaped main part 421 one end is connected with the stand support through the pivot, main stand support fixed mounting is on bottom plate 1, the fan-shaped main part 421 other end is articulated with upset piece actuating mechanism 43, is connected with movable clamp splice 422 through elastic guide mechanism on the fan-shaped main part 421, forms between fan-shaped main part 421 and the movable clamp splice 422 gyro wheel draw-in groove 420 still is equipped with the movable clamp splice actuating mechanism 423 of drive movable clamp splice 422 between fan-shaped main part 421 and the movable clamp splice 422. The fan-shaped main body 421 and the movable clamping block 422 are provided with concave cambered surfaces. When waiting for the roller 91 to enter the roller slot 420, the roller slot 420 is in an open state, and when the photoelectric switch at the periphery of the roller slot 420 detects that the roller 91 enters the roller slot 420, the movable clamping block 422 clamps the roller 91 under the action of the movable clamping block driving mechanism 423, then the turnover block driving mechanism 43 acts, the fan-shaped main body 421 starts to turn over, and after the second clamping mechanism 6 clamps the roller 91 from the side edge of the roller slot 420, the movable clamping block 422 loosens the roller 91.

The first material clamping mechanism 5 comprises a first clamp moving platform 51, and the first clamp moving platform 51 is provided with a first roller material moving clamp 52 for clamping the roller 91 in the feeding to-be-clamped groove 23 of the roller feeding mechanism 2 and placing the roller in the roller fixing groove 32 of the shaft pin inserting mechanism 3, and a second roller material moving clamp 53 for clamping the roller in the roller fixing groove 32 and placing the roller in the roller arrangement groove 41 of the roller turnover mechanism 4. In the specific implementation process, one clamp may be used instead of the first roller material-moving clamp 52 and the second roller material-moving clamp 53. The first jig moving platform 51 is composed of an X-axis and a Y-axis driving mechanism, and is used for driving the first roller material moving jig 52 and the second roller material moving jig 53 to move horizontally and vertically. In order to make the overall structure of the invention distributed compactly, clamp rotating mechanisms are respectively arranged between the first roller material moving clamp 52, the second roller material moving clamp 53 and the first clamp moving platform 51, and after the first roller material moving clamp 52 clamps the rollers 91 in the feeding groove 23 to be clamped, the rollers are horizontally rotated by 90 degrees and then placed in the roller fixing grooves 32; similarly, the second roller transferring jig 53 picks up the roller 91 from the roller fixing groove 32, rotates horizontally by 90 degrees, and then places the roller into the roller arrangement groove 41. Because the roller 91 is of a structure with two thin ends and a thick middle part, in order that the first roller material moving clamp 52 and the second roller material moving clamp 53 can better clamp and fix the roller 91, the first roller material moving clamp 52 and the second roller material moving clamp 53 both comprise two clamping arms, and the lower ends of the two clamping arms are respectively provided with two material clamping claws which are distributed side by side at intervals.

The second material clamping mechanism 6 comprises a second clamp moving platform 61, and the second clamp moving platform 61 is provided with a roller assembly clamp 62 which is used for obliquely clamping and moving out of a roller clamping groove 420 of the roller turnover mechanism 4 and obliquely inserting into the wheat wheel assembly clamp.

Referring to fig. 1, the screw locking mechanism 301 includes an electric screwdriver and an electric screwdriver driving mechanism for driving the electric screwdriver horizontally and vertically; after the upper cover plate 94 is assembled, the upper cover plate 94 and the lower cover plate 93 can be directly locked and connected by screws through the screw locking mechanism 301; in the specific implementation process, after the lower cover plate 93 is installed in the wheat wheel assembling jig 402, the wheel core is installed in the wheat wheel assembling jig 402 through the mechanical arm mechanism, the wheel core is locked and connected with the lower cover plate 93 through the screw locking mechanism 301, then the roller 91 is assembled, after the roller 91 is assembled, the upper cover plate 94 is covered, and finally the upper cover plate 94 is locked and connected with the wheel core through the screw locking mechanism 301. Since one wheat wheel comprises a plurality of rollers 91, which are illustrated as 12 rollers in the drawing, in order to improve the assembly efficiency of the rollers 91, a plurality of sets of wheat wheel roller loading and assembling mechanisms may be disposed around the disc driving mechanism 401.

The discharging mechanism comprises a discharging clamp 201 and a discharging output mechanism 202 arranged in the moving range of the discharging clamp 201. After the wheat wheel which is assembled is clamped out of the wheat wheel assembling jig 402 by the discharging clamp 201, the wheat wheel is put into the discharging output mechanism 202, and a product is delivered out by the discharging output mechanism 202.

The invention realizes the automatic assembly of the wheat wheel, effectively improves the production efficiency and saves the labor cost.

Claims

1. The automatic wheat wheel assembling mechanism is characterized by comprising a bottom plate, wherein a disc driving mechanism is arranged on the bottom plate, and a wheat wheel assembling jig is arranged on the disc driving mechanism; the periphery of the disc driving mechanism is provided with a wheat wheel cover plate direction selecting and feeding mechanism, a roller wheel feeding and assembling mechanism, a screw locking mechanism and a discharging mechanism;

the wheat wheel cover plate direction selecting and feeding mechanism comprises a cover plate conveying mechanism (101) arranged on a bottom plate, a cover plate feeding table (102), a direction selecting and identifying mechanism (103) and a mechanical arm grabbing mechanism (104); the cover plate feeding table (102) is arranged at the discharge end of the cover plate conveying mechanism (101), and a cover plate groove (1021) butted with the discharge port of the cover plate conveying mechanism (101) is formed in the top surface of the cover plate feeding table (102); the direction-selecting identification mechanism (103) comprises a vertical column (1031), a limiting boss (1032) is arranged on the vertical column (1031), a longitudinal groove (1033) is arranged on the vertical column (1031), a positioning detection elastic sheet (1034) is arranged in the longitudinal groove (1033), and the upper end of the positioning detection elastic sheet (1034) is arranged in the longitudinal groove (1033) and is hinged with the vertical column (1031) through an elastic sheet pin shaft; in a normal state, the lower end of the positioning detection elastic sheet (1034) elastically extends out of the longitudinal groove (1033), and a positioning switch (1035) for detecting the popping state of the positioning detection elastic sheet (1034) is arranged at the position, below the limiting boss (1032), on the upright post (1031); the mechanical arm grabbing mechanism (104) comprises a cover plate clamp (1041), the cover plate clamp (1041) is connected with a cover plate rotating mechanism used for driving the cover plate clamp (1041) to rotate, and the cover plate rotating mechanism is connected with a mechanical arm body (1042) used for driving the cover plate clamp (1041) to move from the cover plate feeding table (102) to the direction selection identification mechanism (103) and to move from the direction selection identification mechanism (103) to the wheat wheel assembling jig;

the roller feeding and assembling mechanism comprises a roller feeding mechanism (2), a shaft pin inserting mechanism (3), a roller turnover mechanism (4), a first clamping mechanism (5) and a second clamping mechanism (6) which are arranged on the bottom plate (1);

the roller feeding mechanism (2) comprises a feeding seat (21), a roller feeding pipeline (22) is arranged on the feeding seat (21), and a feeding groove (23) to be clamped and butted with the roller feeding pipeline (22) is arranged at the outlet of the feeding pipeline (22);

the shaft pin inserting mechanism (3) comprises an assembling fixed seat (31), a roller fixing groove (32) is arranged on the assembling fixed seat (31), a shaft pin inserting hole (36) is formed in the side wall of the roller fixing groove (32), and a thimble structure (34) corresponding to the shaft pin inserting hole (36) is arranged on the side edge of the assembling fixed seat (31); a shaft pin translation sliding block (33) is further arranged on the assembly fixing seat (31), the shaft pin translation sliding block (33) is connected with a shaft pin translation sliding block driving mechanism (331), and a shaft pin storage groove (332) which only accommodates one shaft pin at a time is formed in the shaft pin translation sliding block (33); under the reset state of the shaft pin translation sliding block (33), the shaft pin storage groove (332) is butted with the shaft pin insertion hole (36), a shaft pin feeding channel (35) butted with the shaft pin storage groove (332) on the shaft pin translation sliding block (33) in the pushing state is further arranged on the assembly fixing seat (31), and the shaft pin feeding channel (35) is connected with a shaft pin feeding pipeline;

the roller turnover mechanism (4) comprises a roller arrangement groove (41), a discharge hole of the roller arrangement groove (41) is provided with a turnover block (42), the turnover block (42) is connected with a turnover block driving mechanism (43) for driving the turnover block (42) to turn around a shaft, and the turnover block (42) is provided with a roller clamping groove (420) which is butted with the discharge hole of the roller arrangement groove (41);

the first clamping mechanism (5) comprises a first clamp moving platform (51), and the first clamp moving platform (51) is provided with a roller material moving clamp which is used for clamping a roller from a feeding groove (23) to be clamped of the roller feeding mechanism (2) to a roller fixing groove (32) of the shaft pin inserting mechanism (3) and clamping the roller from the roller fixing groove (32) to a roller arrangement groove (41) of the roller turnover mechanism (4);

the second material clamping mechanism (6) comprises a second clamp moving platform (61), and the second clamp moving platform (61) is provided with a roller assembling clamp (62) which is used for obliquely clamping and moving out of a roller clamping groove (420) of the roller turnover mechanism (4) and obliquely inserted into the wheat wheel assembling jig;

the screw locking mechanism (301) comprises an electric screwdriver and an electric screwdriver driving mechanism for driving the electric screwdriver to horizontally and vertically move;

the discharging mechanism comprises a discharging clamp (201) and a discharging output mechanism (202) arranged in the movable range of the discharging clamp (201).

2. The automated wheat wheel assembly mechanism of claim 1, wherein: the cover plate conveying mechanism (101) comprises a cover plate flow channel (1011), a conveyor belt mechanism (1012) is arranged at the bottom of the cover plate flow channel (1011), and a cover plate limiting part (1013) is arranged at the top of the cover plate flow channel (1011); the width of the cover plate flow channel (1011) is the width capable of accommodating the transmission of the single-row cover plate, and the width is smaller than the diameter of the addendum circle of the cover plate; the cover plate feeding table (102) is provided with a group of lifting elastic stoppers (1022) positioned at the side edge of the cover plate groove (1021).

3. The automated wheat wheel assembly mechanism of claim 1, wherein: two clamping arms of the cover plate clamp (1041) are provided with tooth grooves (10411) which are matched with the teeth of the cover plate; and a clamping support sleeve (10412) is arranged between the two clamping arms of the cover plate clamp (1041).

4. The automated wheat wheel assembly mechanism of claim 1, wherein: the left side wall and the right side wall of a roller fixing groove (32) of the shaft pin inserting mechanism (3) are respectively provided with a shaft pin inserting hole (36) corresponding to shaft holes of the left end part and the right end part of a roller in the roller fixing groove (32), and two side edges of the assembling fixing seat (31) are respectively provided with a thimble structure (34) corresponding to the two shaft pin inserting holes (36).

5. The automated wheat wheel assembly mechanism of claim 1, wherein: the shaft pin inserting and installing mechanism (3) is characterized by further comprising a roller clamping swing arm (37), the roller clamping swing arm (37) is connected with the assembling fixing seat (31) in a swinging mode through a shaft, a pressing hook (371) arranged above the roller fixing groove (32) is arranged at the top end of the roller clamping swing arm (37), and the bottom end of the roller clamping swing arm (37) is connected with a swing arm driving mechanism (372) for driving the roller clamping swing arm (37) to swing.

6. The automated wheat wheel assembly mechanism of claim 1, wherein: the thimble structure (34) including thimble (341), connect thimble guide slider (342) of fixed thimble (341), thimble guide slider (342) and assembly fixing base (31) sliding connection, the tail end of thimble guide slider (342) is connected with thimble lever (343), thimble lever (343) are connected with assembly fixing base (31) movable support through the axle, the other end of thimble lever (343) is connected with thimble actuating mechanism (344).

7. The automated wheat wheel assembly mechanism of claim 1, wherein: the turnover block (42) of the roller turnover mechanism (4) comprises a fan-shaped main body (421), one end of the fan-shaped main body (421) is connected with a stand column support through a rotating shaft, the main column support is fixedly installed on the bottom plate (1), the other end of the fan-shaped main body (421) is hinged with a turnover block driving mechanism (43), the fan-shaped main body (421) is connected with a movable clamping block (422) through an elastic guide mechanism, and a roller clamping groove (420) is formed between the fan-shaped main body (421) and the movable clamping block (422) and is also provided with a movable clamping block driving mechanism (423) for driving the movable clamping block (422).

8. The automated wheat wheel assembly mechanism of claim 7, wherein: the fan-shaped main body (421) and the movable clamping block (422) are both provided with concave cambered surfaces.

9. The automated wheat wheel assembly mechanism of claim 1, wherein: the first clamp moving platform (51) is provided with a first roller material moving clamp (52) which is used for clamping rollers from a feeding groove (23) to be clamped of the roller feeding mechanism (2) and placing the clamping rollers into roller fixing grooves (32) of the shaft pin inserting mechanism (3), and a second roller material moving clamp (53) which is used for clamping rollers from the roller fixing grooves (32) and placing the clamping rollers into roller arrangement grooves (41) of the roller turnover mechanism (4); a clamp rotating mechanism is also arranged between the second roller material moving clamp (53) and the first clamp moving platform (51).

10. The automated wheat wheel assembly mechanism of claim 9, wherein: the first roller material moving clamp (52) and the second roller material moving clamp (53) respectively comprise two clamping arms, and the lower ends of the two clamping arms are respectively provided with two material clamping claws which are distributed side by side at intervals.