CN107414472B

CN107414472B - Automatic screw locking machine with three sides locked

Info

Publication number: CN107414472B
Application number: CN201710646541.5A
Authority: CN
Inventors: 林步贤; 康程敏; 李海波; 林虎
Original assignee: Guangdong Jinhongda Automation Technology Co Ltd
Current assignee: Guangdong Jinhongda Automation Science and Technology Shares Ltd.
Priority date: 2017-08-01
Filing date: 2017-08-01
Publication date: 2023-06-16
Anticipated expiration: 2037-08-01
Also published as: CN107414472A

Abstract

The invention discloses an automatic screw locking machine with three sides locked, which comprises: a frame; the operating platform is arranged on the frame, a workpiece can be placed on the operating platform, and a rotating device for transversely rotating the workpiece is arranged on the operating platform; the two screw locking devices are arranged on the frame and are respectively used for locking screws at the rear end and the side end of the workpiece; the screw feeding device is arranged on the frame and used for storing screws and conveying the stored screws to the screw locking device. The invention can effectively improve the production efficiency, does not need to manually disassemble and assemble the rotary workpiece, and effectively reduces the labor intensity of workers.

Description

Automatic screw locking machine with three sides locked

Technical Field

The invention relates to a screw locking machine.

Background

Many products today use screws to connect and secure the components, most products require screws to be attached to multiple sides, typically the left and right sides and the rear end. In order to improve production efficiency and ensure assembly quality, at present, some manufacturers adopt an automatic screw locking machine to lock screws on workpieces, however, the existing screw locking machine usually only comprises a screw locking device, only can lock the screws on one surface of a product at a time, workers manually rotate the workpieces to lock the screws on the other surface after the screws on one surface are locked, when more surfaces need to be locked, the workpieces need to be rotated for many times, the assembly time can be prolonged, and the production efficiency is reduced.

Disclosure of Invention

In order to solve the problems, the invention aims to provide an automatic screw locking machine with three sides locked, which can improve the production efficiency.

The invention adopts the technical proposal for solving the technical problems that:

an automatic screw locking machine with three sides locked, comprising:

a frame;

the operating platform is arranged on the frame, a workpiece can be placed on the operating platform, and a rotating device for transversely rotating the workpiece is arranged on the operating platform;

the two screw locking devices are arranged on the frame and are respectively used for locking screws at the rear end and the side end of the workpiece;

the screw feeding device is arranged on the frame and used for storing screws and conveying the stored screws to the screw locking device.

Preferably, the frame is further provided with a pressing device, and the pressing device is used for pressing the workpiece on the operating platform.

Preferably, the frame is further provided with a blanking device and a blanking conveying device, the blanking device is used for moving the workpiece on the operating platform to the blanking conveying device, and the blanking conveying device is used for moving the workpiece out.

Preferably, the rotating device comprises a rotary table arranged on the operating table, the rotary table is driven by a first driving device to transversely rotate relative to the operating table, and the workpiece can be placed on the rotary table.

Preferably, the side wall of the workpiece is provided with a heat dissipation hole, the rotary table is provided with a positioning piece, the positioning piece is provided with a positioning rod matched with the heat dissipation hole, and the positioning piece is driven by a second driving device to move transversely relative to the rotary table to enable the positioning rod to be inserted into the heat dissipation hole in the workpiece.

Preferably, at least one supporting roller is respectively arranged at the left part and the right part of the rotary table, and the supporting rollers are abutted with the operating table or the frame.

Preferably, the operation table is disc-shaped and is driven by a third driving device to transversely rotate, a plurality of rotation tables are arranged on the operation table, and the rotation tables deviate from the rotation center of the operation table.

Preferably, the screw locking device is movably arranged on the frame through a first travelling mechanism.

Preferably, the screw locking device comprises:

the base is movably arranged on the frame through the first travelling mechanism;

the lifting seat is arranged on the base and driven by a lifting driving device to move up and down relative to the base;

the fast forward seat is arranged on the lifting seat and driven by a fast forward driving device to move back and forth relative to the lifting seat;

the working seat is arranged on the fast forward seat and driven by a working driving device to move back and forth relative to the fast forward seat, the working seat is provided with a screw positioning seat, and the screw feeding device can convey screws to the screw positioning seat;

the locking device is arranged on the work feeding seat or the fast-forward seat and driven by a locking driving device to move back and forth relative to the work feeding seat, the locking device is provided with a locking head aligned and matched with a screw on the screw positioning seat back and forth, and the locking device can lock the screw on a workpiece through the locking head; the locking driving device is elastically connected with the locking device.

Preferably, the screw feeding device comprises:

the storage hopper is arranged on the frame and used for storing the screws, a pushing piece is movably arranged in the storage hopper, a pushing groove matched with the rod part of the screws is arranged at the top of the pushing piece, and the pushing piece is driven by a first feeding driving device to move up and down in the storage hopper so that the heads of the screws in the storage hopper fall into the pushing groove upwards;

the conveying part is arranged on the frame through a vibrating device, a conveying groove which is matched with the screw and inclines downwards from back to front is arranged on the conveying part, the rear part of the conveying groove extends into the storage hopper, and the pushing part can move upwards to enable the pushing groove to be aligned with and close to the conveying groove; the pushing groove is inclined from back to front downwards so that a screw in the pushing groove can move into the conveying groove along the pushing groove;

the sweeping piece is arranged in the storage hopper and driven by a second feeding driving device to transversely move and is used for sweeping the screws dislocated above the pushing groove and/or the conveying groove into the storage hopper;

the staggered separation mechanism comprises a staggered separation table, a staggered separation part and a clamping part, wherein the staggered separation table is provided with a staggered separation plate, a feed inlet which is aligned and communicated with the front end opening of the conveying groove is formed in the staggered separation plate, a discharge hole which is staggered left and right with the feed inlet is formed in the bottom of the staggered separation table, and the discharge hole is connected with the screw locking device through a conveying pipe which is matched with a screw; the staggered parts are movably arranged on the staggered parts and driven by a third feeding driving device to move left and right relative to the staggered parts, the clamping piece is movably arranged on the staggered parts back and forth, the staggered parts are provided with guide grooves, the clamping piece is provided with guide blocks which are slidably inserted in the guide grooves, and the guide blocks can slide along the guide grooves to drive the clamping piece to move back and forth along with the left and right movement of the staggered parts; the rear end of the clamping piece is provided with a clamping opening matched with the rod part of the screw, when the clamping opening is aligned with the feeding opening, the screw in the conveying groove can pass through the feeding opening and move into the clamping opening, and at the moment, the head part of the screw can be abutted with the upper end surface of the clamping piece to suspend the screw on the clamping piece; the staggered parts can move left and right to enable the clamping opening to be aligned with the feeding opening in front-back mode, and at the moment, the clamping parts are pushed by the guide blocks and the guide grooves to move to be staggered with the discharging opening, so that the screws can fall into the discharging opening.

The beneficial effects of the invention are as follows: according to the invention, the two screw locking devices are arranged on the frame and are respectively used for locking screws at the rear end and one side end of the workpiece, so that screw locking operation can be carried out on two end faces of the workpiece at one time, when the screw locking operation is required to be carried out on three faces of the workpiece, the workpiece is rotated by the rotating device on the operating table and then screw locking operation is carried out again, the production efficiency can be effectively improved, the workpiece is not required to be manually disassembled and rotated by a worker, and the labor intensity of the worker is effectively reduced.

Drawings

The invention will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a block diagram of the console, the pressing device and the blanking device of the present invention;

FIG. 3 is an exploded view of the console and rotary device of the present invention;

FIG. 4 is an enlarged partial view of portion A of FIG. 3;

FIG. 5 is a block diagram of a hold down device and a blanking device of the present invention;

FIG. 6 is an enlarged partial view of portion B of FIG. 5;

FIG. 7 is a block diagram of the screw attachment device and first travel mechanism of the present invention;

FIG. 8 is a partially exploded view of the screw locking device of the present invention;

FIG. 9 is a block diagram of a screw feeder according to the present invention;

FIG. 10 is an exploded view of the screw feeder of the present invention;

FIG. 11 is an enlarged partial view of portion C of FIG. 10;

FIG. 12 is a cross-sectional view of the misclassification mechanism of the present invention.

Detailed Description

Referring to fig. 1 to 12, an automatic screw locking machine with three sides locking, comprising: a frame 10; an operation table 20 provided on the frame 10, on which operation table 20 the workpiece 80 can be placed, and on which operation table 20 a rotation device 30 for rotating the workpiece 80 laterally is provided; two screw locking devices 40, which are arranged on the frame 10 and are respectively used for locking screws at the rear end and the side end of the workpiece 80; a screw feeding device 50 provided on the frame 10 for storing screws and feeding the stored screws to the screw locking device 40. According to the invention, the two screw locking devices 40 are arranged on the frame 10, and the two screw locking devices 40 are respectively used for locking screws at the rear end and one side end of the workpiece 80, so that screw locking operation can be performed on two end surfaces of the workpiece 80 at one time, when screw locking operation is required to be performed on three surfaces of the workpiece 80, only the rotating device 30 on the operating table 20 is required to rotate the workpiece 80 for one time, the production efficiency can be effectively improved, and workers are not required to manually disassemble and assemble the rotating workpiece 80, so that the labor intensity of the workers is effectively reduced.

Referring to fig. 1, 2 and 5, the frame 10 is further provided with a pressing device 60, and the pressing device 60 is used for pressing the workpiece 80 onto the console 20. The workpiece 80 can be accurately positioned and fixed, the workpiece 80 is prevented from being stressed to generate deflection in the screw locking operation, and the product quality is ensured. In this embodiment, the pressing device 60 includes a pressing cylinder 62 that is used to push the pressing frame 61 to move up and down, a soft pressing member 63 is disposed on the pressing frame 61, so that the workpiece 80 is uniformly stressed, accurate positioning and fixing of the workpiece 80 can be ensured, deformation caused by excessive stress of the workpiece 80 can be prevented, product quality is ensured, the pressing member 63 can be made of a common soft material such as rubber, in addition, in this embodiment, the pressing device 60 is disposed on the frame 10 through a second travelling mechanism 64, so that the pressing device can be moved to be staggered with the workpiece 80, so as to avoid blocking other working procedures of the workpiece 80, in this embodiment, the second travelling mechanism 64 is an X-axis single-axis travelling mechanism, the pressing device 60 is laterally moved through a second travelling driving device 641, the pressing device 60 is disposed on the frame 10 through a slide rail mechanism, meanwhile, the second travelling driving device 641 summarized in this embodiment adopts a lead screw mechanism driven by a motor, movement stability of the pressing device 60 can be ensured, of course, in practical application, the second driving device 35 can also adopt a gas structure such as XYZ, and other common travelling mechanisms, such as XYZ and other common travelling mechanisms are not limited to be used.

Referring to fig. 1, 2, 5 and 6, the frame 10 is further provided with a blanking device 70 and a blanking conveying device 71, the blanking device 70 is used for moving the workpiece 80 on the operating platform 20 to the blanking conveying device 71, the blanking conveying device 71 is used for moving the workpiece 80 out, so that the workpiece 80 can be conveniently recovered after the workpiece 80 is processed or the workpiece 80 can be conveniently conveyed to the next processing equipment, the automation degree of the invention is improved, and the labor intensity of workers is further reduced. In this embodiment, the blanking device 70 includes a gripper 72, the gripper 72 is disposed on the frame 10 through a third travelling mechanism 73, the conveying device is a conveying belt, the third travelling mechanism 73 can drive the gripper 72 to move to above the workpiece 80, then move the gripper 72 downward to enable the gripper 72 to grasp the workpiece 80, then move and place the workpiece 80 on the conveying belt to send out the workpiece 80, the third travelling mechanism 73 in this embodiment is an XZ double-shaft travelling mechanism, so that the gripper 72 can realize transverse and longitudinal movement, of course, in practical application, the third travelling mechanism 73 can also adopt other common structures such as an XYZ three-axis travelling mechanism, the gripper 72 in this embodiment includes two clamping jaws 721, wherein one clamping jaw 721 is transversely slidably disposed on the third travelling mechanism 73 and is driven by a clamping jaw 722 to clamp the workpiece 80 together with the other clamping jaw 721, the structure is simple and reliable, the mounting and use are facilitated, in addition, the bottom of the gripper 721 is provided with a laterally extending supporting portion 723, when the workpiece 80 is clamped, the bottom of the gripper pad 723 can also be prevented from being scratched by the clamping jaw 80, the side wall 80 can be prevented from being damaged by the friction of the clamping jaw 80, the side wall 80 can be prevented from being damaged by the side wall 80, and other common structures such as the side wall 80 can be easily scratched, the side wall 80 can be prevented from being damaged by the side wall 80.

Referring to fig. 1 to 4, the rotating device 30 includes a rotating table 31 disposed on the operating table 20, the rotating table 31 is driven by a first driving device 32 to rotate transversely with respect to the operating table 20, and the workpiece 80 is placed on the rotating table 31. Therefore, the automatic rotation and reversing of the workpiece 80 can be realized, the structure is simple and reliable, the processing and the assembly are convenient, the first driving device 32 in the embodiment is a rotary cylinder, the installation and the control are convenient, the rotation angle of the workpiece 80 can be accurately controlled, the use is convenient, of course, in practical application, the first driving device 32 can also adopt other commonly used structures such as a common servo motor, and the rotating device 30 can also adopt other commonly used structures such as a clamping jaw 721 driven by a cylinder and a connecting rod mechanism, and the invention is not limited to the structure.

The side wall of the workpiece 80 is provided with a heat dissipation hole 81, the rotary table 31 is provided with a positioning piece 33, the positioning piece 33 is provided with positioning rods 34 matched with the heat dissipation hole 81, the positioning piece 33 is driven by a second driving device 35 to move transversely relative to the rotary table 31 so that the positioning rods 34 can be inserted into the heat dissipation hole 81 in the workpiece 80, thereby accurately positioning the workpiece 80, ensuring the accuracy of the screw locking position, ensuring the product quality, reducing the occurrence rate of faults, simultaneously the positioning piece 33 in the embodiment can be abutted with the side wall of the workpiece 80, further improving the accuracy of positioning the workpiece 80, in addition, in the embodiment, the positioning piece 33 is arranged on the left side and the right side of the workpiece 80, the accuracy of positioning the workpiece 80 can be effectively improved, the workpiece 80 is prevented from being deviated and deflected, the second driving device 35 in the embodiment adopts a common cylinder, and of course, in practical application, the second driving device 35 can also adopt other common driving structures such as a motor, and the like are not limited to the method.

In this embodiment, a plurality of positioning blocks 36 are further disposed on the rotary table 31, the positioning blocks 36 are close to the peripheral side walls of the workpiece 80 or are close to the peripheral side walls of the workpiece 80, when the workpiece 80 is placed on the rotary table 31, the positioning blocks 36 can position the workpiece 80, so that feeding operation is convenient, and meanwhile, the positioning blocks 36 can also have positioning and fixing effects on the workpiece 80, so as to prevent the workpiece 80 from loosening.

At least one support roller 37 is provided on each of the left and right sides of the rotary table 31, and the support roller 37 abuts against the console 20 or the frame 10. The turntable 31 can be guaranteed to incline due to uneven stress, the workpiece 80 can be accurately positioned, the product quality is guaranteed, the occurrence rate of faults is reduced, in the embodiment, three supporting rollers 37 are arranged on the turntable 31 and are respectively arranged at the left part, the right part and the rear part of the turntable 31, and the number and the setting positions of the supporting rollers 37 can be flexibly adjusted according to the needs in practical application.

The operation table 20 is disc-shaped and is driven by a third driving device 21 to transversely rotate, a plurality of rotary tables 31 are arranged on the operation table 20, and the rotary tables 31 deviate from the rotation center of the operation table 20, so that a workpiece 80 can be mounted on the rotary tables 31 outside, the operation table 20 is driven by the third driving device 21 to rotate so as to move the workpiece 80 to a machining position along with the rotary tables 31, the obstruction to corresponding machining operation is avoided, the feeding operation is convenient, the safety of workers can be ensured, meanwhile, the feeding operation is reduced by adopting the disc-shaped operation table 20, the structure of the screw locking device is more compact, the screw locking device is beneficial to reducing the volume of the screw locking device, and in addition, the workpiece 80 is fed on the rest rotary tables 31, the production continuity is ensured, and the production efficiency is effectively improved. In the present embodiment, two rotary tables 31 are provided on the operation table 20, however, in practical applications, three, four, or other numbers of rotary tables 31 may be provided on the operation table 20 at the same time or only one rotary table 31 may be provided as required. In this embodiment, the third driving device 21 adopts a servo motor, and drives the operation table 20 to rotate through a gearbox, so that the torque force can be increased, so that the invention can be applied to the workpiece 80 with larger weight, and the rotation angle of the operation table 20 can be accurately controlled, so that the operation table is convenient to use, and of course, in practical application, the third driving device 21 can also adopt other common driving structures such as a swinging cylinder, and the like, and the operation table is not limited to this.

Referring to fig. 1, 7 and 8, the screw locking device 40 is movably arranged on the frame 10 through a first travelling mechanism 41, so that the position of the screw locking device can be conveniently and flexibly changed according to needs to lock screws at different positions on the workpiece 80, and the screws are conveniently and sequentially locked at multiple positions on a single surface of the workpiece 80 by using a single screw locking device 40, so that the structure of the invention is effectively simplified, the invention can adapt to the processing requirements of different workpieces 80, the application range of the invention is effectively enlarged, in the embodiment, the first travelling mechanism 41 is used for pushing the corresponding screw locking device 40 to move transversely along the corresponding workpiece 80 to be processed, the first travelling driving device 411 is included, the screw locking device 40 is arranged on the frame 10 through a sliding rail mechanism, the screw locking device 411 in the embodiment can be stably kept to move, the screw locking device 40 is also driven by a motor, the structure is simple and reliable, the stable movement of the screw locking device can be further ensured, the screw locking device can be accurately driven by a three-axis mechanism 411 can be conveniently and stably used, and conveniently used for locking the screw 40 by other travelling mechanisms, and other travelling mechanisms can be used for actually and conveniently and only being limited by the first travelling mechanism 41, and other travelling mechanisms can be used for actually and used for driving the screw 41.

In this embodiment, the screw locking device 40 includes: a base 42 movably provided on the frame 10 by the first traveling mechanism 41 so as to be capable of being driven by the first traveling mechanism 41 to move laterally with respect to the base 42; the lifting seat 43 is arranged on the base 42 and driven by a lifting driving device 431 to move up and down relative to the base 42; the fast forward seat 44 is disposed on the lifting seat 43 and driven by a fast forward driving device 441 to move back and forth relative to the lifting seat 43; the working seat 45 is arranged on the fast forward seat 44 and driven by a working driving device 451 to move back and forth relative to the fast forward seat 44, the working seat 45 is provided with a screw positioning seat 452, and the screw feeding device 50 can convey screws to the screw positioning seat 452; the locking device 46 is arranged on the work-in seat 45 or the fast-forward seat 44 and driven by a locking driving device 461 to move back and forth relative to the work-in seat 45, the locking device 46 is provided with a locking head 462 which is aligned and matched with the screw on the screw positioning seat 452 back and forth, and the locking device 46 can lock the screw on the workpiece 80 through the locking head 462; the lock driving device 461 is elastically connected to the lock 46. The lifting driving device 431 can drive the lifting seat 43 to move up and down so as to adjust the heights of the screw positioning seat 452 and the locking device 46, the application range of the invention can be enlarged, screw locking operation can be carried out at a plurality of different height positions sequentially, production efficiency is improved, the structure is simplified, the fast-forward driving device 441 can drive the fast-forward seat 44 to move back and forth rapidly, the phenomenon that the workpiece 80 is blocked in rotation and reversing can be avoided, the processing time can be effectively shortened, the production efficiency is improved, the working driving device 451 can drive the working seat 45 to move forward slowly so as to enable the screw positioning seat 452 to abut against the side wall of the workpiece 80 to position a screw conveyed to the screw positioning seat 452, impact on the workpiece 80 can be avoided, the workpiece 80 is offset or deformed, the locking device 46 can drive the locking head 462 to rotate, the locking driving device 461 can drive the locking device 46 to move forward so as to lock the screw on the workpiece 80, and the locking device 461 is elastically connected with the locking device 46. The lifting driving device 431 in the embodiment is a screw mechanism driven by a motor, so that the moving stability of the lifting seat 43 can be ensured, the vertical position of the lifting seat 43 can be accurately positioned, and the lifting seat 43 is slidably connected with the base 42 through a sliding rail mechanism, so that the moving stability of the lifting seat 43 can be further ensured; the quick-forward driving device 441 adopts the cylinder, has simple structure and quick action, can shorten the moving time of the quick-forward seat 44, improves the production efficiency, and ensures the moving stability of the quick-forward seat 44 because the quick-forward seat 44 is also arranged on the lifting seat 43 through the sliding rail mechanism; the working driving device 451 adopts a screw rod driving device, so that the stable movement of the screw positioning seat 452 can be ensured, the working seat 45 is arranged on the fast-forward seat 44 through a sleeve mechanism, and the moving stability of the screw positioning seat 452 and the working seat 45 can be improved; the locking driving device 461 adopts an air cylinder, has a simple structure, is convenient to assemble and use, and the locking device 46 is guided by adopting a sleeve mechanism, however, in practical application, the lifting driving device 431, the fast-forward driving device 441, the working driving device 451 and the locking driving device 461 can also adopt other common driving structures, and is not limited to the above. The lock 46 and the lock driving device 461 in the present embodiment are connected by a lock spring 463 to be elastically connected, and in practical application, the lock 46 and the lock driving device 461 may be elastically connected by other common elastic structures such as elastic pads; in addition, in the present embodiment, the locker 46 is slidably disposed on the fast-forward seat 44, the locker driving device 461 is disposed on the working driving device 451 and slidably disposed on the fast-forward left side together to be movable back and forth synchronously, so that the locker 46 can move together with the screw positioning seat 452, and since the locker 46 is slidably disposed on the fast-forward seat 44 alone while the locker 46 is elastically connected with the locker driving device 461, it is possible to prevent the deformation of the workpiece 80 or the damage of the screw due to an excessive force of the locker 46 pushing the screw. The lock 46 is widely used in the art and is typically driven by a motor to rotate the lock head 462 to tighten the lock screw, the construction and principles of which are well known to those skilled in the art and will not be described in detail herein.

Referring to fig. 9 to 12, in the present invention, a screw feeding device 50 includes:

the storage hopper 51 is arranged on the frame 10 and is used for storing screws, a pushing piece 52 is movably arranged in the storage hopper 51, a pushing groove 522 matched with the rod part of the screw is arranged at the top of the pushing piece 52, the pushing piece 52 is driven by a first feeding driving device 521 to move up and down in the storage hopper 51 so that the head part of the screw in the storage hopper 51 falls into the pushing groove 522 upwards, and the screws can be ordered for subsequent conveying and feeding operations;

the conveying member 53 is arranged on the frame 10 through a vibrating device 533, a conveying groove 531 which is matched with the screw and is inclined downwards from back to front is arranged on the conveying member 53, the rear part of the conveying groove 531 extends into the storage hopper 51, and the pushing member 52 can move upwards to enable the pushing groove 522 to be aligned with and close to the conveying groove 531; the pushing groove 522 is inclined downwards from back to front, so that the screw in the pushing groove 522 can move into the conveying groove 531 along the pushing groove 522, the vibrating device 533 can vibrate the conveying piece 53, the screw can move in the conveying groove 531 by matching with the inclined conveying groove 531, the conveying of the screw is realized, and the inclined pushing groove 522 can also enable the screw to slide into the conveying groove 531 along the pushing groove 522, so that the structure is simple, and the processing and the assembly are convenient;

the sweeping piece 54 is disposed in the storage hopper 51 and is driven by a second feeding driving device 541 to move transversely, and is used for sweeping the screw dislocated above the pushing chute 522 and/or the conveying chute 531 into the storage hopper 51, so as to avoid influencing subsequent screw conveying, and the sweeping piece 54 is usually a soft brush, so that the screw located in the conveying chute 531 or the pushing chute 522 is prevented from being swept out and the conveying piece 53 and the pushing piece 52 are prevented from being knocked;

the staggered sub mechanism comprises a staggered sub platform 551, a staggered sub piece 552 and a clamping piece 553, wherein the staggered sub platform 551 is provided with a staggered sub plate 5511, the staggered sub plate 5511 is provided with a feed inlet 5512 aligned with and communicated with the front end opening of the conveying groove 531, the bottom of the staggered sub platform 551 is provided with a discharge outlet 5513 staggered left and right with the feed inlet 5512, and the discharge outlet 5513 is connected with the screw locking device 40 through a conveying pipe 56 matched with a screw; the split piece 552 is movably arranged on the split piece 551 and driven by a third feeding driving device 5521 to move left and right relative to the split piece 551, the clamping piece 553 is movably arranged on the split piece 552 back and forth, the split piece 551 is provided with a guide groove 5514, the clamping piece 553 is provided with a guide block 5531 which is inserted in the guide groove 5514 in a sliding way, and along with the left and right movement of the split piece 552, the guide block 5531 can slide along the guide groove 5514 to drive the clamping piece 553 to move back and forth; the rear end of the clamping piece 553 is provided with a clamping opening 5532 which is matched with the rod part of the screw, when the clamping opening 5532 is aligned with the feeding opening 5512, the screw in the conveying groove 531 can pass through the feeding opening 5512 to move into the clamping opening 5532, and at the moment, the head part of the screw can be abutted with the upper end surface of the clamping piece 553 to suspend the screw on the clamping piece 553; the split piece 552 can move left and right to align the clamping opening 5532 with the feeding opening 5512, and at this time, the clamping piece 553 is pushed by the guide block 5531 and the guide groove 5514 to move to be staggered with the discharging opening 5513, so that the screw can fall into the discharging opening 5513. When the screw feeder is used, the screw in the conveying groove 531 firstly enters the clamping opening 5532 on the clamping piece 553 through the feeding opening 5532 and is hung on the clamping opening 553, then the third feeding driving device 5521 drives the wrong separating piece 552 to move, in the process, the clamping opening 553 clamps the screw together with the side wall of the wrong separating plate 5511, the screw is prevented from falling down, meanwhile, the clamping piece 553 moves relative to the wrong separating piece 552 under the action of the guide groove 553 and the guide block 5531, when the clamping piece 553 moves to align the screw in the clamping opening 553 with the discharge opening 553, the clamping piece 553 also moves relative to the wrong separating piece 552 to enable the gap between the clamping opening 553 and the wrong separating plate 5511 to be used for the head of the screw to pass through, the screw falls into the discharge opening 553 at the moment, and then enters the screw positioning seat 452 through the conveying pipe 56 in a blowing mode. The first feeding driving device 521, the second feeding driving device 541 and the third feeding driving device 5521 in this embodiment all use common cylinders, and have simple structure, rapid action and convenient use. Of course, in practical applications, the feeding driving devices may also use a common driving structure such as a motor, and the screw feeding device 50 may also use other common feeding structures such as a vibrating screen. In the invention, the baffle 532 is arranged above the conveying groove 531 for limiting the vertical moving distance of the screw and preventing the screw from vibrating out of the conveying groove 531, the baffle 532 is arranged on the conveying piece 53 through a hinge 534, can rotate to a space above the conveying groove 531, is convenient for overhauling the conveying piece 53, and is also convenient for taking out the screw from the conveying groove 531 and is convenient for use. The storage hopper 51 is internally provided with a stock detection device for detecting the stock of the screws in the storage hopper 51, in this embodiment, the stock detection device comprises a swing switch 571 and a swing rod 572 arranged on the swing switch 571, the bottom of the swing rod 572 is close to the bottom of an inner cavity of the storage hopper 51, when the stock of the screws in the storage hopper 51 is more, the swing rod 572 can be rotated to prop up, when the number of the screws in the storage hopper 51 is less than a certain amount, the swing rod 572 can be rotated downwards to trigger the swing switch 571, so that the screw allowance in the storage hopper 51 can be monitored conveniently to remind operators to supplement the screws, and the use is convenient. The feeding detector 58 is further arranged above the conveying groove 531, and can detect whether screws exist in the conveying groove 531 and sequentially control actions of the wrong separating mechanism or send out prompt signals, so that operators can find and remove faults in time. In addition, in the present invention, the air-blowing channel 5522 is formed on the split piece 552, the air inlet hole is formed on the side wall of the split bench 551, the air inlet joint 5516 for connecting with the external high-pressure air source is formed on the air inlet 5515, when the clamping port 5532 is aligned with the front and back of the feeding port 5512, the air inlet hole is aligned with and communicated with one end of the air-blowing channel 5522, and the other end of the air-blowing channel 5522 is aligned with and communicated with the discharging port 5513, by connecting the external high-pressure air source with the air inlet hole, compressed air can be blown onto the screw positioning seat 452 from the discharging port 5513 through the conveying pipe 56 by the air-blowing channel 5522, and when the split bench 551 moves to convey the screw entering the clamping port 5532 from the feeding port 5532 to the discharging port 5513, the blowing can be stopped by being staggered with the air inlet hole, so that the waste of the compressed air is avoided, the structure is simple and ingenious, the processing and assembly are convenient, and the screw positioning seat 452 can be independently provided.

The first running gear 41, the second running gear 64 and the third running gear 73 are widely used in the art, and the structure and principle thereof are well known to those skilled in the art, and are not described in detail herein. In addition, the invention is also provided with a controller and a plurality of detectors, the motion of each moving part is monitored by the detection device, the controller can control the automatic operation of the invention and send out corresponding alarms or prompts according to the detection data of the detectors so as to facilitate the early detection and troubleshooting of operators, the detectors can adopt common detection structures such as infrared sensors, contact switches, distance sensors, electromagnetic sensors and the like, the controller can adopt common control structures such as PLC, PC and the like, the number and the setting positions of the detectors and the corresponding control modes can be flexibly adjusted according to actual needs, and the detection devices are common technical means in the field and are not described in detail herein.

The foregoing is only a preferred embodiment of the present invention, and all technical solutions for achieving the object of the present invention by substantially the same means are within the scope of the present invention.

Claims

1. An automatic screw locking machine with three sides locked, which is characterized by comprising: a frame (10); an operation table (20) arranged on the frame (10), a workpiece (80) arranged on the operation table (20), and a rotating device (30) for transversely rotating the workpiece (80) arranged on the operation table (20); the two screw locking devices (40) are movably arranged on the frame (10) through a first travelling mechanism (41) and are respectively used for locking screws at the rear end and one side end of the workpiece (80); the screw feeding device (50) is arranged on the frame (10) and is used for storing screws and conveying the stored screws to the screw locking device (40), the frame (10) is also provided with a pressing device (60), and the pressing device (60) is used for pressing a workpiece (80) on the operating platform (20); the screw locking device (40) comprises: the base (42) is movably arranged on the frame (10) through the first travelling mechanism (41); a lifting seat (43) arranged on the base (42) and driven by a lifting driving device (431) to move up and down relative to the base (42); a fast forward seat (44) arranged on the lifting seat (43) and driven by a fast forward driving device (441) to move back and forth relative to the lifting seat (43); a working seat (45) arranged on the fast forward seat (44) and driven by a working driving device (451) to move back and forth relative to the fast forward seat (44), wherein the working seat (45) is provided with a screw positioning seat (452), and the screw feeding device (50) is used for conveying screws to the screw positioning seat (452); a locker (46) arranged on the work feed seat (45) or the fast feed seat (44) and driven by a locking driving device (461) to move back and forth relative to the work feed seat (45), wherein the locker (46) is provided with a locking head (462) aligned and matched with a screw positioned on a screw positioning seat (452) forwards and backwards, and the locker (46) locks the screw on a workpiece (80) through the locking head (462); the locking driving device (461) is elastically connected with the locking device (46).

2. The three-sided locking automatic screw machine according to claim 1, wherein the frame (10) is further provided with a blanking device (70) and a blanking conveying device (71), the blanking device (70) is used for moving a workpiece (80) on the operation table (20) onto the blanking conveying device (71), and the blanking conveying device (71) is used for moving the workpiece (80) out.

3. An automatic screw locking machine with three sides locking according to claim 1, characterized in that the rotating means (30) comprise a rotary table (31) arranged on the operating table (20), said rotary table (31) being driven by a first driving means (32) to rotate transversely with respect to the operating table (20), the work piece (80) being placed on said rotary table (31).

4. A three-sided locking automatic screw machine according to claim 3, characterized in that the side wall of the workpiece (80) is provided with a heat dissipation hole (81), the rotary table (31) is provided with a positioning piece (33), the positioning piece (33) is provided with a positioning rod (34) matched with the heat dissipation hole (81), and the positioning piece (33) is driven by a second driving device (35) to move transversely relative to the rotary table (31) to enable the positioning rod (34) to be inserted into the heat dissipation hole (81) on the workpiece (80).

5. A three-sided lock attaching automatic lock screw machine according to claim 3, characterized in that the left and right parts of the rotary table (31) are respectively provided with at least one supporting roller (37), the supporting roller (37) is abutted with the operation table (20) or the frame (10).

6. A three-sided lock screw machine according to claim 3, characterized in that the operating table (20) is in the form of a disc and is driven to rotate transversely by a third driving means (21), that the operating table (20) is provided with a plurality of the rotary tables (31), and that the rotary tables (31) are offset from the rotation center of the operating table (20).

7. An automatic screw locking machine with three sides locking according to claim 1, characterized in that said screw feeding device (50) comprises: the storage hopper (51) is arranged on the frame (10) and used for storing screws, a pushing piece (52) is movably arranged in the storage hopper (51), a pushing groove (522) matched with the rod part of the screw is arranged at the top of the pushing piece (52), and the pushing piece (52) is driven by a first feeding driving device (521) to move up and down in the storage hopper (51) so that the head part of the screw in the storage hopper (51) upwards falls into the pushing groove (522); the conveying piece (53) is arranged on the frame (10) through a vibrating device (533), a conveying groove (531) which is matched with the screw and inclines downwards from back to front is arranged on the conveying piece (53), the rear part of the conveying groove (531) extends into the storage hopper (51), and the pushing piece (52) moves upwards to align and close the pushing groove (522) with the conveying groove (531); the pushing groove (522) is inclined from back to front and downwards so that a screw in the pushing groove (522) moves into the conveying groove (531) along the pushing groove (522); the sweeping piece (54) is arranged in the storage hopper (51) and is driven by a second feeding driving device (541) to transversely move, and is used for sweeping off the staggered screws above the pushing groove (522) and/or the conveying groove (531) into the storage hopper (51); the staggered separation mechanism comprises a staggered separation table (551), a staggered separation piece (552) and a clamping piece (553), wherein the staggered separation table (551) is provided with a staggered separation plate (5511), a feeding hole (5512) which is aligned with and communicated with the front end opening of the conveying groove (531) is formed in the staggered separation plate (5511), a discharging hole (5513) which is staggered left and right with the feeding hole (5512) is formed in the bottom of the staggered separation table (551), and the discharging hole (5513) is connected with the screw locking device (40) through a conveying pipe (56) which is matched with a screw; the staggered piece (552) is movably arranged on the staggered piece (551) and is driven by a third feeding driving device (5521) to move left and right relative to the staggered piece (551), the clamping piece (553) is arranged on the staggered piece (552) in a back and forth moving way, the staggered piece (551) is provided with a guide groove (5514), the clamping piece (553) is provided with a guide block (5531) which is inserted in the guide groove (5514) in a sliding way, and the guide block (553) slides along the guide groove (5514) to drive the clamping piece (553) to move back and forth along with the left and right movement of the staggered piece (552); the rear end of the clamping piece (553) is provided with a clamping opening (5532) matched with the rod part of the screw, when the clamping opening (5532) is aligned with the feeding opening (5512), the screw in the conveying groove (531) passes through the feeding opening (5512) and moves into the clamping opening (5532), and at the moment, the head part of the screw is abutted with the upper end surface of the clamping piece (553) to suspend the screw on the clamping piece (553); the staggered piece (552) moves left and right to enable the clamping opening (5532) to be aligned with the feeding opening (5512) forwards and backwards, and at the moment, the clamping piece (553) is pushed by the guide block (5531) and the guide groove (5514) to move to be staggered with the discharging opening (5513) so that a screw falls into the discharging opening (5513).