WO2023272828A1

WO2023272828A1 - Automatic bolt feeding apparatus and positioning method therefor

Info

Publication number: WO2023272828A1
Application number: PCT/CN2021/108330
Authority: WO
Inventors: 石林; 于宝; 沈东阳
Original assignee: 南京昱晟机器人科技有限公司
Priority date: 2021-06-30
Filing date: 2021-07-26
Publication date: 2023-01-05
Also published as: CN113526078A

Abstract

Disclosed are an automatic bolt feeding apparatus and a positioning method therefor, which belong to the technical field of bolt assembly. The automatic bolt feeding apparatus comprises: a base, and a vibration component and a sorting component which are mounted on the base; the vibration component comprises a vibration disc base mounted on the base, a controller mounted on the vibration disc base, and a spiral hopper fixedly mounted on the vibration disc base; the sorting component comprises a receiving channel that makes contact with an end surface of a feeding channel of the spiral hopper, a rotary shaft fixedly mounted on the receiving channel by means of a mounting frame, an incomplete gear mechanism mounted on an end of the rotary shaft near the spiral hopper, a rotating disc intermittently and meshingly connected to the incomplete gear mechanism, and a servo motor that drives the rotating disc to rotate. In the present invention, bolts can be rapidly adjusted to the same form, facilitating the mounting of the bolts.

Description

An automatic bolt feeding device and its positioning method

technical field

The invention belongs to the technical field of bolt assembly, and in particular relates to a bolt automatic feeding device and a positioning method thereof.

Background technique

Bolts are widely used in the mechanical field. Bolts are mainly composed of two parts: the head and the screw, and are mainly connected to other parts through the screw in the bolt. However, in actual installation, the bolts are mainly loaded manually. It takes a very long time to install and connect the workpiece, and requires a lot of operators to meet the installation requirements.

technical problem

An automatic bolt feeding device and a positioning method thereof are provided, which solve the above-mentioned problems existing in the prior art.

technical solution

A welding robot that can be adjusted in all directions, including a base;

The vibration assembly includes a vibrating plate base installed on the base, a controller installed on the vibrating plate base, and a screw hopper fixedly installed on the vibrating plate base; the vibrating plate base drives the screw hopper to vibrate , transport the material upwards;

The sorting assembly includes a material receiving channel in contact with the surface of the end of the screw hopper feeding channel, a rotating shaft fixed on the material receiving channel through a mounting bracket, and an incomplete gear mechanism installed on the rotating shaft near the end of the screw hopper, The rotating disk is intermittently meshed with the incomplete gear mechanism, and the servo motor that drives the rotating disk to rotate; the rotating disk and the incomplete gear mechanism are used to cooperate with each other to drive the material receiving channel on the rotating shaft to rotate, and the bolts are adjusted It is convenient to install the bolts in a specific state.

Preferably, the material receiving channel includes a first material receiving channel and a second material receiving channel, the first material receiving channel is rotatably mounted on the rotating shaft through a mounting frame, and the second material receiving channel is rotated through a mounting frame Installed on the rotating shaft, the first material receiving channel and the second material receiving channel are symmetrical to the center of the rotating shaft, and the rotating shaft drives the first material receiving channel and the second material receiving channel to rotate to keep the bolts at the same form, convenient Multiple bolts for installation.

Preferably, it also includes a fixed plate with an inclined end surface installed on the screw hopper, an annular slideway arranged on the inclined end surface of the fixed plate, slidably connected in the annular slideway and the first material receiving channel fixing frame The first branch that is connected by rotation, and the second branch that is slidably connected in the annular slideway and the second branch that is rotatably connected by the second material receiving channel fixing frame, when the rotating shaft drives the first material receiving channel and the second material receiving channel to rotate, on fixed disk Under the action of the annular slideway on the inclined end surface, the first material receiving channel and the second material receiving channel move back and forth to ensure that the upper material receiving channel protrudes, and prevent the lower material receiving channel from blocking the bolt during the falling process of the bolt, causing the bolt falling track to occur Variety.

Preferably, the first material receiving channel and the second material receiving channel are respectively close to the arc portion of the incomplete gear mechanism, and the first material receiving channel and the second material receiving channel are replaced by the mutual cooperation of the rotating disc and the incomplete gear mechanism. the location of the road.

Preferably, the screw hopper includes a casing that is sleeved on the base of the vibrating plate and has an open top, a screw conveyor belt installed in the casing, and a baffle installed on the side of the lower end of the screw conveyor belt away from the casing , which is arranged on the upper end of the screw conveyor belt and is located at the through hole on one side of the screw conveyor belt; the vibration component drives the screw conveyor belt to vibrate, conveys the bolts upwards, and sends the bolts through the through hole arranged on the screw conveyor belt The bolts stacked together are separated, so that the bolts are neatly arranged on the spiral conveyor belt.

Preferably, it also includes a blocking mechanism fixedly connected to the vibration assembly, the blocking mechanism is located between the screw hopper and the material receiving channel and is fixedly connected with the screw hopper, the blocking mechanism is used to block the bolts, Stand the bolt upright in the blocking mechanism.

Preferably, the blocking mechanism includes a cylinder with a through hole inside, and an accommodating cavity arranged on the upper and lower end surfaces of the cylinder and communicated with the through hole; the through hole extends along the length direction of the cylinder and The feeding channel is connected, and the height of the through hole is greater than the diameter of the screw rod and smaller than the diameter of the head of the bolt. When the bolt moves to the through hole, under the action of the through hole, the bolt is in a vertical standing state .

Preferably, it also includes a support block installed on one side of the upper end of the column, and a distance sensor embedded in the support block; the support block is located at the end of the column close to the material receiving channel, and the distance The sensor is wired to the servo motor, and the distance sensor detects the bolts in the upper feeding channel, and the servo motor drives the rotating disc to rotate, turning over the bolts with the screw rods above, so that the screw rods of the bolts are at the bottom, which is convenient for bolts to install.

A positioning method for automatic loading of bolts, comprising the following steps:

The first step, put the bolts into the screw hopper, and start the vibrating plate base;

In the second step, the bolts move along the spiral conveyor belt. When the bolts move to the through hole, the screw hopper is vibrated by the base of the vibrating plate, so that the bolts stacked on each other fall from the through hole, and the remaining bolts enter the blocking mechanism. Under the action of the blocking mechanism, the bolt stands vertically in the blocking mechanism;

In the third step, the bolts enter the material receiving channel along the blocking mechanism, and detect the bolts in the material receiving channel through the distance sensor; when the distance sensor detects the bolts, the controller starts the servo motor to drive the rotating disc to rotate, and the rotating disc and the The incomplete gear mechanism cooperates to make the material receiving channel turn 180°, so that the bolts in the material receiving channel are in the state of the screw on the lower bolt head, which is convenient for installing the bolts; when the distance sensor does not detect the bolt, the servo motor stops working , so that the bolts in the material receiving channel can be directly dropped and installed;

The fourth step, repeat the steps from the first step to the third step until all the bolts are installed.

Beneficial effect

The invention relates to an automatic bolt feeding device and its positioning method. The bolts are moved on the screw hopper by using a vibrating component, and the bolts are individually moved on the screw hopper, so that the bolts are not stacked together, and the bolts are sorted by a sorting component. The specific shape is changed to ensure that the bolts remain in the same shape, which is convenient for installing the bolts, without manual sorting and loading of the bolts, improving installation efficiency and reducing manual operation procedures.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of the sorting assembly of the present invention;

Fig. 3 is a schematic diagram of a vibration assembly of the present invention;

Fig. 4 is an enlarged view of A in Fig. 3 of the present invention.

Reference numerals in the figure are: base 1, vibrating assembly 2, sorting assembly 3, blocking mechanism 4, vibrating plate base 21, screw hopper 22, screw conveyor belt 23, baffle plate 24, through hole 25, support block 26, connection Material channel 31, rotating shaft 32, incomplete gear mechanism 33, rotating disk 34, servo motor 35, fixed disk 36, first branch 37, second branch 38, first material receiving channel 311, second material receiving channel 312 , cylinder 41, accommodating chamber 42.

Embodiments of the present invention

In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

In the actual application, the applicant found that: in the actual installation, it is mainly to rely on manual labor to complete the loading of the bolts and the connection of the workpieces. The installation takes a long time and requires a lot of operators to meet the requirements of the installation. Requirements, and the bolts need to be manually adjusted to a specific state during the transportation and installation process before the bolts can be installed. In view of these problems, an automatic bolt feeding device and its positioning method have been invented, which can effectively solve the above question.

As shown in Figures 1 to 4, a bolt automatic feeding device, hereinafter referred to as "the device". The device includes base 1, vibrating assembly 2 and sorting assembly 3 in three parts.

The vibrating assembly 2 is installed on the base 1, the sorting assembly 3 is installed on the base 1, the vibrating assembly 2 is in surface contact with the sorting assembly 3, forming a passage to facilitate the movement of the bolt.

The vibration assembly 2 includes a vibrating plate base 12 installed on the base 1, a controller is installed on the vibrating plate base 12, and a screw hopper 22 is fixedly installed on the vibrating plate base 12; The hopper 22 vibrates to transport the material upwards; the sorting assembly 3 includes a material receiving channel 31 in contact with the end surface of the feeding channel of the screw hopper 22, and a rotating shaft 32 fixedly installed on the material receiving channel 31 through a mounting bracket , the rotating shaft 32 is installed with an incomplete gear mechanism 33 near one end of the screw hopper 22, and the rotating disc 34 that is intermittently meshed with the incomplete gear mechanism 33 drives the rotating disc 34 to rotate the servo motor 35; Cooperate with the incomplete gear mechanism 33 to drive the material receiving channel 31 on the rotating shaft to rotate, and adjust the bolts to a specific state to facilitate the installation of the bolts. The material receiving channel 31 includes a first material receiving channel 311 and a second material receiving channel 311. The material receiving channel 312, the first material receiving channel 311 is rotatably mounted on the rotating shaft 32 through the mounting frame, the second material receiving channel 312 is rotatably mounted on the rotating shaft 32 through the mounting frame, and the first material receiving channel 311 is rotatably mounted on the rotating shaft 32 through the mounting frame. The material channel 311 and the second material receiving channel 312 are symmetrical to the center of the rotating shaft 32, and the rotating shaft 32 drives the first material receiving channel 311 and the second material receiving channel 312 to rotate. The material channels 312 are respectively close to the arc portion of the incomplete gear mechanism 33, and the positions of the first material receiving channel 311 and the second material receiving channel 312 are replaced by the mutual cooperation of the rotating disc 34 and the incomplete gear mechanism 33, so that the bolts are kept In the same form, it is convenient to install multiple bolts. A fixed plate 36 with an inclined end surface is installed on the screw hopper 22. An annular slideway is arranged on the inclined end surface of the fixed plate 36, and a first A branch 37, the first branch 37 is rotatably connected to the first material receiving channel 311 through a fixed frame, and a second branch 38 is slidably connected in the annular slideway, and the second branch 38 is connected to the first The second material receiving channel 312 is connected through the rotation of the fixed frame. When the rotating shaft 32 drives the first material receiving channel 311 and the second material receiving channel 312 to rotate, under the action of the annular slideway on the oblique end surface of the fixed disk 36, the first material receiving channel is Road 311 and the second material receiving channel 312 move back and forth to ensure that the upper material receiving channel 31 protrudes, and prevent the lower material receiving channel 31 from blocking the bolt during the bolt falling process and cause the bolt falling trajectory to change.

The screw hopper 22 includes a housing that is sleeved on the vibrating plate base 121 and has an open top. A screw conveyor belt 23 is installed in the housing. The upper end of the screw conveyor belt 23 and a through hole 25 is set on one side of the screw conveyor belt 23, and the vibration assembly 2 drives the screw conveyor belt 23 to vibrate, and the bolts are conveyed upwards, and the bolts are passed through the through holes arranged on the screw conveyor belt 23. The holes 25 separate the stacked bolts so that the bolts are neatly arranged on the spiral conveyor belt 23 .

During the movement of the bolts on the screw hopper 22, they may stand vertically on the screw hopper 22, or lay flat on the screw hopper 22. In order to allow all the bolts to be in the same shape, the A blocking mechanism 4 is fixedly connected to the vibrating assembly 2, and the blocking mechanism 4 is located between the screw hopper 22 and the material receiving channel 31 and is fixedly connected with the screw hopper 22. The blocking mechanism 4 is used to block the bolts, so that the bolts Standing vertically in the blocking mechanism 4, the blocking mechanism 4 includes a cylinder 41 with a through hole 25 inside, and an accommodating cavity 42 is arranged on the upper and lower end surfaces of the cylinder 41, and the accommodating cavity 42 and the through hole 25, the through hole 25 extends along the length direction of the cylinder 41 and communicates with the material receiving channel 31, the height of the through hole 25 is greater than the diameter of the screw rod and smaller than the diameter of the bolt head, and the bolt moves to the At the hole 25, under the effect of the through hole 25, the bolt is in the state of standing upright.

Because the screw rods of some bolts are on the top, and the screw rods of some bolts are on the bottom, in order to ensure that all the bolt shapes are consistent, a support block 26 is installed on the upper end side of the column 41, and a distance sensor is embedded in the support block 26; The block 26 is located at one end of the cylinder 41 close to the material receiving channel 31, the distance sensor is connected to the servo motor 35 by wiring, and the distance sensor detects the bolts in the upper material receiving channel 31, and is driven by the servo motor 35. Turning plate 34 rotates, and the bolt that screw rod is at the top is turned over, and the screw rod of bolt is at the bottom, is convenient to bolt is installed.

Through the above technical scheme, the present invention can realize the following work process:

In the first step, the bolts are put into the screw hopper 22, and the vibrating plate base 12 is started;

In the second step, the bolts move along the screw conveyor belt 23. When the bolts move to the through hole 25, since the vibrating plate base 121 has been driving the screw hopper 22 to vibrate, the bolts stacked on each other fall from the through hole 25, and the remaining bolts enter In the blocking mechanism 4, under the effect of the blocking mechanism 4, the bolt is vertically stood in the blocking mechanism 4;

In the third step, the bolts enter the material receiving channel 31 along the blocking mechanism 4, and detect the bolts in the material receiving channel 31 through the distance sensor; Rotate, cooperate with the incomplete gear mechanism 33 by the rotating disk 34, make the material receiving channel 31 turn over 180 °, make the bolt in the material receiving channel 31 be the state that the screw rod is on the lower bolt head, and it is convenient to install the bolt; When the distance sensor does not detect the bolt, the servo motor 35 stops working, so that the bolt in the material receiving channel 31 is directly dropped and installed;

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be carried out to the technical solutions of the present invention. These equivalent transformations All belong to the protection scope of the present invention.

Claims

An automatic bolt feeding device, characterized in that it comprises:

base;

The vibration assembly includes a vibrating plate base installed on the base, a controller installed on the vibrating plate base, and a screw hopper fixedly installed on the vibrating plate base; the vibrating plate base drives the screw hopper to vibrate , transport the material upwards;

The sorting assembly includes a material receiving channel in contact with the surface of the end of the screw hopper feeding channel, a rotating shaft fixed on the material receiving channel through a mounting bracket, and an incomplete gear mechanism installed on the rotating shaft near the end of the screw hopper, The rotating disk is intermittently meshed with the incomplete gear mechanism, and the servo motor that drives the rotating disk to rotate; the rotating disk and the incomplete gear mechanism are used to cooperate with each other to drive the material receiving channel on the rotating shaft to rotate, and the bolts are adjusted It is convenient to install the bolts in a specific state.
The automatic feeding device for bolts according to claim 1, wherein the material receiving channel includes a first material receiving channel and a second material receiving channel, and the first material receiving channel is rotatably installed on the On the rotating shaft, the second material receiving channel is rotatably mounted on the rotating shaft through a mounting bracket, and the first material receiving channel and the second material receiving channel are symmetrical about the center of the rotating shaft.
A bolt automatic feeding device according to claim 2, characterized in that it also includes a fixed plate with an inclined end surface installed on the screw hopper, and an annular slideway arranged on the inclined end surface of the fixed plate to slide The first branch that is connected in the annular slideway and is rotatably connected with the first material receiving channel fixing frame, and the second branch that is slidably connected in the annular slideway and is rotatably connected with the second material receiving channel fixing frame.
The automatic feeding device for bolts according to claim 1, characterized in that, the first material receiving channel and the second material receiving channel are respectively close to the arc portion of the incomplete gear mechanism, and the rotating disc and the incomplete The complete gear mechanism cooperates with each other to change the positions of the first material receiving channel and the second material receiving channel.
The automatic feeding device for bolts according to claim 1, wherein the screw hopper includes a shell sleeved on the base of the vibrating plate with an opening at the top, a screw conveyor belt installed in the shell, and The baffle on the side of the lower end of the spiral conveyor belt away from the housing is set on the upper end of the spiral conveyor belt and is located in the through hole on one side of the spiral conveyor belt; the vibration component drives the spiral conveyor belt to vibrate, and the bolts are pushed upward transport, and separate the stacked bolts through the through holes provided on the spiral conveyor belt, so that the bolts are neatly arranged on the spiral conveyor belt.
The automatic feeding device for bolts according to claim 1, further comprising a blocking mechanism fixedly connected to the vibrating assembly, the blocking mechanism is located between the screw hopper and the material receiving channel and is in contact with The screw hopper is fixedly connected, and the blocking mechanism is used to block the bolts so that the bolts stand vertically in the blocking mechanism.
The automatic feeding device for bolts according to claim 6, characterized in that, the blocking mechanism includes a cylinder with a through hole inside, and a housing arranged on the upper and lower end surfaces of the cylinder and communicated with the through hole. Cavity; the through hole communicates with the material receiving channel along the length direction of the cylinder, and the height of the through hole is greater than the diameter of the screw rod and smaller than the diameter of the bolt head.
A bolt automatic feeding device according to claim 7, characterized in that it also includes a support block installed on one side of the upper end of the column, and a distance sensor embedded in the support block; the support block is located at The cylinder is close to one end of the material receiving channel, and the distance sensor is connected to the servo motor by wiring.
A positioning method for automatic feeding of bolts is characterized in that it comprises the following steps:

S1. Put the bolts into the screw hopper and start the vibrating plate base;

S2. The bolts move along the spiral conveyor belt. When the bolts move to the through hole, the screw hopper is vibrated by the base of the vibrating plate, so that the bolts stacked on each other fall from the through hole, and the remaining bolts enter the blocking mechanism. Under the action of the bolt, the bolt stands vertically in the blocking mechanism;

S3. The bolt enters the material receiving channel along the blocking mechanism, and detects the bolt in the material receiving channel through the distance sensor; when the distance sensor detects the bolt, the servo motor is started to work through the controller, and the rotating disc is driven to rotate. The gear mechanism cooperates to make the material receiving channel turn 180°, so that the bolts in the material receiving channel are in the state that the screw rod is on the lower bolt head, which is convenient for installing the bolts; when the distance sensor does not detect the bolt, the servo motor stops working, so that The bolts in the feeding channel are directly dropped and installed;

S4. Steps S1-S3 are repeated until all bolts are installed.