KR20160147407A

KR20160147407A - System for fastening automatically screw

Info

Publication number: KR20160147407A
Application number: KR1020150084105A
Authority: KR
Inventors: 신중호
Original assignee: 에스엔텍주식회사
Priority date: 2015-06-15
Filing date: 2015-06-15
Publication date: 2016-12-23

Abstract

The automatic bolt fastening apparatus of the present invention comprises: a main frame part; A moving frame part movably coupled up and down on the main frame part; A driver unit coupled to one side of the movable frame unit and screwing the bolt by rotation; And a bolt take-out inlet portion provided at a lower portion of the driver portion to provide a moving path of the bolt supplied from the bolt supply portion and to provide a discharge path of the mounted bolt and the seated bolt, Penetrating body; And the lower end portion of the bolt is inclined so as to have an inner diameter smaller than that of the upper portion. When the screw is lowered by the screwdriver, the screw is opened to both sides to provide a discharge path of the bolt, A pair of clamps which are fastened to the object and then receive the sheared top head; A bolt supply conduit slopingly connected to the body to provide a supply path for the bolt into the clamp at the bolt supply; And a stopper hinged on one side of the bolt supply pipe and disposed on the lower end portion inclined at the other end through the clamp. The stopper is rotated to the outside of the bolt supply pipe when the bolt is inserted into the clamp through the bolt supply pipe, So that the bolt is restored to its original position when the bolt is discharged to the outside, and the upper head of the bolt sheared at the time of the driver's upward movement is blocked to be accommodated in the clamp.

Description

SYSTEM FOR FASTENING AUTOMATICALLY SCREW

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic bolt fastening apparatus, and more particularly, to a bolt fastened to a smart key module of an automobile, a head is sheared from a fastened bolt in order to make it difficult to disassemble a smart key module. The present invention relates to a bolt automatic tightening system capable of shearing and separating the head of a fastened bolt.

In general, a bolt is fastened to the object by a screwdriver. However, since this method is not suitable for mass production, the bolt is automatically supplied to the bolt, And a device for assembling them is developed and used.

The conventional bolt automatic tightening apparatus includes a clamp for holding the bolt, a clamp support member for supporting the clamp to rotate about the rotation axis, and a bolt for supplying the bolts sequentially, And a lifting and rotating means fixed to the support shaft and lifting and lowering the screw shaft mounted therein to fasten the bolt to an object and assemble the bolt.

In the conventional bolt fastening by the bolt automatic fastening device, when the bolt supplied through the bolt supply pipe is caught by the inclined jaw of the clamp due to its own weight and the bolt is pushed down by the lifting and lowering means, The bolts descend and come into contact with the object.

In this state, when the bolt is rotated by the elevating and rotating means, the bolt is fastened to the object.

And if you give more torque to the fastened bolt, the head part can be removed. However, when the head of the bolt is removed, the automatic bolt fastening device having the above-described structure is inconvenient to manually collect and separate the head portion of the bolt from which the worker has been removed, And there are uneconomical problems.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a bolt automatic tightening device capable of automatically collecting and separating a head portion of a bolt to improve productivity and economy.

The automatic bolt fastening apparatus of the present invention comprises a main frame part; A movable frame part movably coupled to the main frame part up and down; A driver unit coupled to one side of the movable frame unit and fixing the bolt by rotation; And a bolt take-out inlet portion provided at a lower portion of the driver portion to provide a moving path of the bolt supplied from the bolt supply portion and to provide a seat for the supplied bolt and a discharge path for the seated bolt, A body through which the driver of the driver unit passes; The bolt is hinged to the body and the lower end of the bolt is tilted so as to have an inner diameter smaller than that of the upper part, and the bolt is mounted on both sides during the tightening operation of the bolt by the descent of the screwdriver, A pair of clamps, which are fastened to an object among the bolts formed with a head, and accommodate a sheared upper head; A bolt supply pipe slantly connected to the body to provide a supply path of the bolt into the clamp at the bolt supply unit; And a stopper hinged on one side of the bolt supply pipe, the other end of the hinge passing through the clamp and disposed on the inclined lower end portion, wherein the stopper is provided with the bolt through the bolt supply pipe, The bolt is guided to the outside of the bolt to guide the bolt into the clamp, and when the bolt is discharged to the outside, the bolt is returned to the original position, Can be accommodated.

According to the bolt automatic fastening apparatus of the present invention, in order to make the disassembling operation difficult after assembling, such as a smart key module of an automobile, the head portion of the bolt is sheared, and the sheared portion is collected by a collection box capable of automatically moving horizontally, It is advantageous to increase the productivity.

1 is a perspective view schematically showing a bolt used in a bolt automatic fastening apparatus of the present invention.
2 is a perspective view schematically showing a bolt automatic tightening apparatus according to an embodiment of the present invention;
Fig. 3 is a cross-sectional view schematically showing a bolt take-out inlet portion of the bolt automatic fastening device of Fig. 2; Fig.
FIGS. 4A to 4F are operation views sequentially showing the operation of the bolt automatic fastening apparatus of FIG. 2;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a bolt automatic fastening apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view schematically showing a bolt used in the bolt automatic fastening apparatus of the present invention, FIG. 2 is a perspective view schematically showing an automatic bolt fastening apparatus according to an embodiment of the present invention, FIG. 3 is a cross- FIGS. 4A to 4F are operation diagrams sequentially showing the operation of the bolt automatic tightening apparatus of FIG. 2. FIG.

Referring to FIG. 1, the bolts used in the bolt automatic fastening apparatus of the present invention may be not only bolts of a general shape but also bolts 200 having two head portions.

The bolt 200 having the two head portions includes an upper head 210 formed with a cross or a straight groove for turning using a phillips screwdriver or a flat screwdriver and a lower head 220 formed at a lower portion of the upper head 210, And a fastening part 230 having a screw at a lower part of the lower head 220.

Here, the upper head 210 has a shape similar to a funnel so that its outer diameter becomes smaller toward the lower head 220, so that the bolt 200 is fastened to an object, . &Lt; / RTI >

That is, the bolt automatic fastening apparatus of the present invention is for fastening a bolt 200 having two head parts to an object, and after the bolt 200 is fastened to the object, the rotational torque of the screw driver is further increased, To a bolt automatic tightening device which makes it difficult to separate the bolts 200 fastened from the object.

Hereinafter, an automatic bolt fastening apparatus according to the present invention will be described with reference to a bolt 200 having two head portions.

2 to 4F, the automatic bolt fastening apparatus 100 of the present invention includes a main frame 110 having a main frame 111, a main frame 110 coupled to one side of the main frame 110, A moving frame part 120 having a moving frame 121 that ascends and descends on the frame 110 and a servo robot 122 that provides a driving force for raising and lowering the moving frame 121, A driver 130 having a driver 131 and a servomotor 132 for providing a driving force to the driver 131 and a bolt extraction inlet 140 coupled to the driver 130, (150) coupled to the main frame unit (110).

Hereinafter, only the characteristic parts of the present invention will be described in detail, and detailed description of the same or similar parts to those of the conventional art will be omitted.

The bolt take-out inlet portion 140 includes a body 141, a clamp 142, a bolt supply pipe 143, and a stopper 144.

The body 141 is connected to the driver 130 and the lower portion of the driver 131 is inserted through the hollow of the body 141.

The clamp 142 is for holding the bolt 200 therein. The clamp 142 hinges on the body 141 and has a seating space for the bolt 200 therein.

When the screw 131 is lowered by the bolt 200 and the lower end of the clamp 142 is pushed down by the screw 131, the pair of clamps 142 are extended to both sides of the bolt 200, (I.e., catches the upper head portion) while protruding outward and returning to the original state.

The inside of the inside of which the pair of clamps 142 is formed is inclined inward so that the inner diameter of the lower end portion is smaller than the inner diameter of the upper portion.

The bolt supply pipe 143 is connected to the body 141 in an inclined manner and provides a movement path so that the bolts 200 supplied from the bolt supply unit 143 are seated in the clamp 142.

That is, the combination of the body 141 and the bolt supply pipe 143 has a shape similar to that of the "Y" and is also referred to as a so-called "Y pipe".

One end of the stopper 144 is hinged to the bolt supply pipe 143 and the other end of the stopper 144 passes through the pair of clamps 142 and is projected on the inclined lower end.

The stopper 144 is rotated to the outside of the bolt supply pipe 143 to move the bolt 200 when the bolt 200 supplied through the bolt supply pipe 143 is moved, When resting, it returns to the original state.

Here, the return of the stopper 144 to the original position is based on the elastic restoring force of the hinge spring (not shown) coupled between the stopper 144 and the bolt supply pipe 143. That is, when the bolt 200 moves, And the bolt 200 is elastically restored when it is seated in the clamp 142 to return the stopper 144 to its original position.

One end portion of the stopper 144 returned to the original position in the clamp 142 protrudes into the space in the clamp 142 so that the upper head 210 of the bolt 200 seated in the clamp 142 shears It is possible to function to shut off the ascending path so as to remain at the lower portion of the clamp 142 without being accompanied by the ascending of the rear driver 131.

The expansion cylinder 145 is further connected to the clamp 142 so that the pair of clamps 142 can be opened on both sides by pneumatic pressure.

The expansion cylinder 145 has a function of opening the clamp 142 to discharge the sheared upper head 210 from the clamp 142 to the outside.

The receiving unit 150 may be disposed at a lower portion of the bolt receiving opening 140 of the main frame unit 110 and may be horizontally moved in a direction perpendicular to the bolt receiving opening 140. The base plate 151 A pneumatic cylinder 154, and a collection box 155. [

The base plate 151 is coupled to the main frame 111 and has vertical protrusions 152 protruded upward on both sides of a front end of the clamp 142, The pusher 153 is coupled to the front side.

The pneumatic cylinder 154 is coupled to the base plate 151.

The collection box 155 is for collecting the upper head 210 that has been sheared after the bolt 200 is tightened and is connected to the piston of the pneumatic cylinder 154, And is returned to the original state when the piston is moved backward.

The collection box 155 includes a side wall 156, a closing plate 157, and a return spring 158.

The side wall 156 has a space formed therein and has an open top and a bottom, and the piston is coupled to one side, that is, the rear side, of the side wall 156.

The closing plate 157 has a horizontal plate 157a and vertical bars 157b protruding upward from both sides of one side of the horizontal plate 157a so as to have a shape similar to a " .

The lower end of the vertical bar 157b is hinged to the side wall 156 so that the horizontal plate 157b can close the open bottom of the side wall 156 by rotation of the vertical bar 157b.

One end of the return spring 158 is coupled to both sides of the side wall 156 and the other end of the return spring 158 is coupled to both sides of the horizontal plate 157a of the closing plate 157, And is elastically returned when the external force is removed, so that the lower portion of the side wall 156 can be closed by the closing plate 157.

100 ... bolt automatic fastening device 110 ... main frame part
120 ... movable frame part 130 ... driver part
131 ... driver 140 ... bolt withdrawal input
141 ... body 142 ... clamp
143 ... bolt supply pipe 144 ... stopper
145 ... extension cylinder 150 ... deny
153 ... pusher 154 ... pneumatic cylinder
155 ... collection box 156 ... side wall
157 ... closing plate 158 ... return spring

Claims

A main frame part; A movable frame part movably coupled to the main frame part up and down; A driver unit coupled to one side of the movable frame unit and fixing the bolt by rotation; And a bolt take-out inlet portion provided at a lower portion of the driver portion to provide a moving path of the bolt supplied from the bolt supply portion and to provide a seat for the supplied bolt and a discharge path for the seated bolt, ,
The bolt take-
A body through which the driver of the driver unit passes;
The bolt is hinged to the body and the lower end of the bolt is tilted so as to have an inner diameter smaller than that of the upper part, and the bolt is mounted on both sides during the tightening operation of the bolt by the descent of the screwdriver, A pair of clamps, which are fastened to an object among the bolts formed with a head, and accommodate a sheared upper head; Features automatic screw fastening system.

A bolt supply pipe slantly connected to the body to provide a supply path of the bolt into the clamp at the bolt supply unit; And
And a stopper hinged on one side of the bolt supply pipe, the other end of the stopper passing through the clamp and disposed on the inclined lower end,
The stopper is guided through the bolt supply pipe to rotate the bolt to the outside of the bolt supply pipe when the bolt is drawn into the clamp so that the bolt is seated in the clamp. When the bolt is discharged to the outside, Wherein a path along which the top head of the sheared bolt ascends together is accommodated in the clamp so as to be accommodated in the clamp.