KR100387183B1 - Factory automation system having webbing inserting device for seat belt assembly - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a factory automation facility for a seat belt assembly having a webbing inlet, which is provided with an automatic means for fastening the webbing to the reel of the retractor, so that the seat belt assembly can be assembled quickly and accurately.

The factory automation equipment for seat belt assembly having the webbing input of the present invention processes the upper part of the housing 10 to insert a plurality of parts into the webbing 50 when assembling the retractor 40 and the webbing 50. End assembly with webbing input unit 100, webbing receiving unit 200, component providing unit 300, stopper fastening unit 400 arranged to perform a series of seat belt assembly processes controlled by the logic controller 600. Consists of a portion 500, the webbing input 100 is a box-shaped cylinder assembly 110, the insertion block 111 is fixed therein, and the actuator 112 for moving the box-shaped cylinder assembly 110 in the axial direction. And, the first roller portion 120 for webbing conveyance fixed to the box-shaped cylinder assembly 110, the input plate 125 fixed to the outlet side of the first roller portion 120 and the retractor 40 Jig 130 for standing on the housing 10 and positioning means 140, 150 of the guide web 42 of the retractor 40. Equipped.

Description

FACTORY AUTOMATION SYSTEM HAVING WEBBING INSERTING DEVICE FOR SEAT BELT ASSEMBLY}

The present invention relates to a factory automation facility for a seat belt assembly having a webbing input, and in particular, an automobile seat belt through an automated process using a process logic controller (hereinafter referred to as a PLC; programmable logic controller), an inverter, a proximity sensor, and the like. A factory automation facility for a seat belt assembly having a webbing inlet for assembling and mass-producing a retractor.

In general, PLC is a device that integrates process control relay, timer, counter, etc. into microprocessor and is the core of factory automation (FA). This PLC was first marketed in 1968 by the US Digital Equipment Company (DEC) to replace the existing relay control panel, and it is possible to control the sequence through programming, and to perform arithmetic, logic, function, and control operations. And data processing can be performed.

Factory automation equipment using PLC is not only applied to the entire industry, but also increases the industrial competitiveness in automobile assembly plants and parts assembly plants.

On the other hand, in the factory automation field, which requires a lot of manual work such as a seat belt assembly, a factory automation facility for each component type and assembly process is required in order to reduce product cost and control quality.

Here, the seat belt assembly is a belt webbing formed of a high-strength fiber material, a removable buckle, and fixed to the side wall of the vehicle body to store the usual webbing to freely webbing the user's movement in case of emergency. It consists of a retractor that performs the action of restraining the user by unwinding or winding. In particular, such a webbing consists of an end where the fixing pin is rolled and fixed, and an opposite end of the fixing pin to which the end mount is fastened. These webbings are fastened with a tongue fastening to the buckle, having an end mount having integral bolts to be fixed to the vehicle body, a button-shaped stopper pressed to the webbing surface, and an integral bolt to be secured to the vehicle body sidewalls. The guide ring is used as a ring mount and interior finish.

Then, the assembled seat belt assembly is used to be fixed to the vehicle body in a conventional three-point fixing method.

There is an urgent need for specially designed factory automation equipment to assemble these seat belt assemblies consistently and accurately.

In addition, in the manufacturing process of the seat belt assembly, assembling the webbing to the reel (reel) that the elastic force acts due to the characteristics of the assembly process of the seat belt assembly, in addition to the operation of pre-fitting the plurality of component elements described above in the webbing, There is a need for a factory automation facility capable of producing a large amount of complex assembly processes in a short time, such as maintaining a suitable assembly state.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, and provided with an automatic means for binding the webbing to the reel of the retractor, webbing input that can quickly and accurately assemble the seat belt assembly It is an object of the present invention to provide a factory automation equipment for seat belt assembly having.

1 is a perspective view for explaining the configuration of the factory automation equipment for seat belt assembly having a webbing input of the present invention,

2 is a plan view for explaining the assembly relationship and the operation relationship of the factory automation equipment for seat belt assembly having a webbing input shown in FIG.

3A and 3B are side views for explaining important portions of the webbing input unit shown in FIG.

♠ Explanation of symbols on the main parts of the drawing ♠

10 housing 40 retractor

50: webbing 100: webbing input

110: cylinder assembly 111: insertion block

112: actuator 120: first roller portion

125: input plate 130: jig

The present invention for achieving the object as described above, in the factory automation equipment for seat belt assembly for inserting a plurality of parts in the webbing, when assembling the retractor, a series controlled by a process logic controller at the top of the housing It consists of a webbing input unit, a webbing receiving device, a part providing unit, a stopper fastening unit and an end assembly unit arranged to perform the seat belt assembly process of the An actuator for moving the assembly in the axial direction, a first roller portion for webbing conveyance fixed to the box-shaped cylinder assembly, input plates fixed to the outlet side of the first roller portion, a jig for standing the retractor on the housing, Seatbell with webbing input, characterized in that it comprises positioning means for the guide web of the retractor It is achieved by factory automation equipment for assembly.

Further, according to the present invention, it is preferable that the step motor is attached to the box-shaped cylinder assembly in the webbing inlet.

In addition, according to the present invention, the box-shaped cylinder assembly is preferably attached to the first webbing sensor for detecting the presence or absence of webbing.

In addition, according to the present invention, the first roller unit has a first roller that rotates with the driving force of the step motor, and a second roller that is simultaneously rotated by the first roller and moved to the first roller by the pneumatic strut. desirable.

In addition, according to the present invention, it is preferable that the input plates are bent in the venturi shape so that the gap between them is gradually reduced, so that they are inserted into the reel side holes of the retractor and the web holes of the guide web when the box-shaped cylinder assembly and the first roller portion are axially moved. .

Further, according to the present invention, it is preferable that the fixing plate sensor is attached to the input plate to detect the end of the fixing pin side webbing.

In addition, according to the present invention, it is preferable that the input plate sensor for detecting whether the input plate is inserted into the upper plate of the housing in which the input plate is moved.

In addition, according to the present invention, it is preferable that the housing forms a box-shaped body with a rectangular skeletal frame, and has a shock absorbing support part and a movable wheel for height adjustment at the bottom thereof.

In the following, with reference to the accompanying drawings a preferred embodiment of the factory automation equipment for seat belt assembly having a webbing input according to the present invention will be described in detail.

In the drawings, Figure 1 is a perspective view for explaining the configuration of the factory automation equipment for a seat belt assembly having a webbing input of the present invention, Figure 2 is an assembly of the factory automation equipment for a seat belt assembly having a webbing input shown in FIG. 3A and 3B are side views illustrating important parts of the webbing input unit shown in FIG. 1. In the drawings, the same or similar reference numerals may be given to the same or similar elements.

First, referring to FIGS. 1 and 2, the present invention provides a webbing input unit 100, a webbing receiving unit 200, a component providing unit 300, and a stopper fastening unit according to a series of seat belt assembly process flows. 400 and the end assembly 500 are arranged above the housing 10.

The housing 10 is formed of a box-shaped body with a rectangular frame 11 having an appropriate height so that a healthy adult can conveniently perform a task, and attaches plate members to both front and side surfaces. Such a housing 10 has a reinforcing member 12 in the transverse direction, and has a shelf inside the housing 10 supported by the reinforcing member 12. In addition, a plurality of parts feeders supported by the shelves are installed inside the housing 10, and a stopper elevating elevator using a pneumatic cylinder is installed. In addition, the housing 10 secures the height adjustable shock absorbing support parts 20 to the lower edges, respectively, to provide a stable assembly process environment. In addition, the housing 10 is provided with wheels 30 for movement, so that it is easy to move in the working place. The rectangular upper plate 13 is fixed to the upper portion of the housing 10. The upper plate 13 includes a plurality of webbing inserting units 100, a webbing receiving device 200, a component providing unit 300, a stopper fastening unit 400, and an end assembly unit 500. Bolt holes are formed.

In addition, the factory automation equipment for the seat belt assembly of the present invention is a series of automated processes for assembling the seat belt by the pneumatic equipment 610 to provide the air pressure supplied from the outside and the PLC 600 connected to the power supply 620 This is controlled.

On the other hand, when the webbing input unit 100 inserts the webbing 50 into the recessed insertion hole formed in the insertion block 111 by the first worker, the webbing 50 radially reels the retractor 40 in the radial direction. It penetrates easily to the webbing receiving device 200. That is, the webbing inlet 100 has a box-shaped cylinder assembly 110 in which the insertion block 111 is fixed therein as an automation means.

The box-shaped cylinder assembly 110 has an actuator 112 so that the entire assembly can be moved axially (a) using pneumatic pressure, and has grooves 113 formed on both sidewalls. The grooves 113 are horizontally pressed by the webbing 50, which is inserted vertically first, and a crosspiece 114 that prevents warping of the webbing 50 is seated.

Rung 114 is coupled to be rotated (b) at a finite radius of rotation by a step motor 115 fixed to one side wall of the box-shaped cylinder assembly 110. In particular, the operation time of the step motor 115 is determined by the first webbing sensor 116 and the PLC 600 mounted to the box-shaped cylinder assembly 110. That is, when the operator inserts the webbing 50 into the insertion block 111 of the box-shaped cylinder assembly 110, the first webbing sensor 116 detects the presence or absence of the webbing 50, and accordingly, steps after a few seconds. The motor 115 is working.

At the end of the box-shaped cylinder assembly 110, the first roller part 120 for webbing transfer is fixed. The first roller part 120 is rotatably coupled with the first roller 121 that rotates (d) by the driving force of the step motor 123 controlled by the PLC 600, and the first roller 121. And a second roller 122 formed to be movable (c) toward the first roller 121 by the pneumatic strut 124. The first roller part 120 transfers the webbing 50 toward the second roller part 220 of the webbing receiving device 200. In addition, two input plates 125 are bent at the end of the first roller part 120 to be bent in the venturi shape to gradually reduce the gap therebetween. The input plate 125 has a fixing pin sensor 126 for detecting the end of the fixing pin side webbing (50). Meanwhile, an input plate sensor 127 is installed on the upper plate 13 of the housing 10 through which the input plates 125 are moved to detect whether the input plate 125 is inserted. These sensors 126 and 127 sense the transfer position of the webbing 50 and the input plate 125 to provide the PLC 600 with position information for operating flow control.

In addition, the collected ends of the two input plates 125 are inserted into the reel side hole 41 of the retractor 40 and the web hole 43 of the guide web 42 to move the webbing 50 in the conveying direction. Serves to induce. That is, the two input plates 125 are moved axially together with the box-shaped cylinder assembly 110 during the forward operation of the box-shaped cylinder assembly 110, so that the reel side hole 41 of the retractor 40 and By being disposed in the web hole 43, it serves to guide the webbing 50 to easily penetrate the retractor 40.

Here, the retractor fixing jig 130 is provided with an insertion groove corresponding to the outer shape of the retractor 40, it is possible to raise the retractor 40 upright. On the other hand, since the guide web 42 described above is rotatably coupled at a finite angle in the retractor 40, it requires an automated facility to match the reel side hole 41 and the web hole 43. . In the present invention, the first web positioning means 140 for the guide web 42 mounted on the seat retractor 40 and the guide web mounted on the seat right retractor (not shown). And second web positioning means 150 (not shown).

These positioning means (140, 150) are connected to the pneumatic line to move the piston shaft in the axial direction and is controlled by the PLC (600). In addition, the positioning means (140, 150) is provided with a pusher (141, 151) of the shape corresponding to each guide web at the end of the piston shaft, the reel side hole 41 and the web hole (43) during stretching operation To match.

The webbing receiving device 200 includes a second roller part 220 for conveying the webbing 50 passing through the retractor 40 and an openable guide plate 211 so that the conveyed webbing 50 can be vertically transferred. It consists of a box-shaped case 210 having a). Here, the open and close guide plate 211 is formed to be curved and maintains the gap between the corresponding to the thickness of the webbing 50, the guide plate to guide the webbing 50 to the component providing unit 300. In addition, the first guide plate 211 is operated to open and close based on the hinge point by the opening / closing cylinder 212 extended / expanded in the axial direction.

The component provider 300 includes a plurality of jig blocks 310 and 320. The jig blocks 310 and 320 are moved to be stirred by the operation of a pneumatic cylinder controlled by the PLC 600, and two slits and three component assembling grooves are formed. The first slit acts like a guide groove for webbing penetration, and the second slit is formed to intersect the three component assembly grooves so that the fastening holes of the tongue, guide ring and ring mount inserted into the component assembly grooves It serves to guide the webbing 50 to penetrate.

The stopper fastening part 400 may include a third roller part 420 for transferring the webbing 50 which has exited the part providing part 300, and a stopper presser for pressing and fixing a button-shaped stopper on both sides of the webbing 50. 410 and parts feeders 450 and 451 for automatically aligning / feeding the stopper. Here, the stopper fastening part 400 is provided with the second webbing sensor 427 and the third webbing sensor 417 to determine the transfer position of the webbing 50, thereby placing the stopper at a predetermined position of the webbing 50. Can be fixed

The end assembly 500 has a fourth roller part 520 for conveying the webbing 50 which has exited the stopper fastening part 400 and a webbing in the fastening hole of the end mount by bending the end of the webbing 50 in a cone shape. It consists of a mold unit 510 to be inserted (50).

In the following, the overall operating method of the present invention having the arrangement described above will be described.

1 to 3B, the worker turns on the power of the factory automation facility of the present invention. In this case, the PLC 600 is in a standby state for operation. The operator inserts the insertion block 111 of the webbing input part 100 while maintaining the vertical end of the webbing 50 opposite the fixing pin.

At this time, the worker inserts deeply so that the end of the webbing 50 opposite the fixing pin passes slightly between the first roller 121 and the second roller of the first roller part 120. In this case, the PLC 600 receiving the sensing signal of the first webbing sensor 116 mounted on the box-shaped cylinder assembly 110 operates the step motor 115 so that the crossbar 114 rotates downward (b). Let's At the same time, according to the control operation of the PLC 600, the first web positioning means 140 advances, and the web hole 43 of the web 42 and the reel side hole 41 of the retractor 40 are closed. Match.

In addition, the box-shaped cylinder assembly 110 is moved axially (a), so that the input plates 125 fixed to the box-shaped cylinder assembly 110 are connected to the reel side holes 41 of the retractor 40. It is inserted into the web hole 43 of the guide web 42.

At this time, the input plate sensor 127 detects the position of the input plate 125, and as a result, the first roller part 120 and the second roller part 220 operate. That is, the second roller 122 of the first roller part 120 moves toward the first roller 121 to bring the webbing 50 into close contact, and at the same time, the first roller 121 is driven by the driving force of the step motor 123. Rotates. As a result, the webbing 50 passes through the reel side hole 41 and the web hole 43 through the input plate 125 at a high speed.

Then, the webbing 50 is gently bent and transferred from the openable guide plate 211 of the webbing receiving device 200 by receiving the transfer force of the second roller unit 220. Thereafter, the first jig block 310 and the second jig block 320 pass through the fastening holes of the tongue, the guide ring and the ring mount, and then reach the third roller part 420.

At this time, when the second webbing sensor 427 detects the end of the webbing 50 opposite the fixing pin, the opening and closing cylinder 212 of the webbing storage device 200 operates, and as a result, the opening and closing guide plate 211 is operated. Open in box-shaped case 210. Then, due to the webbing conveying operation of the first roller part 120 and the second roller part 220, the webbing 50 enters the box-shaped case 210 to have a corrugation shape. When the fixing pin sensor 126 detects the end of the fixing pin side webbing 50, the operation of the first roller part 120 and the second roller part 220 is stopped, and the first web positioning means. 140 retracts and box-shaped cylinder assembly 110 backs off. At this time, the end of the fixing pin side webbing 50 is seated on the reel of the retractor 40. Subsequently, an end of the webbing 50 opposite the fixing pin moves to the fourth roller 520 by the operation of the third roller 420, and an end of the webbing 50 to which the third webbing sensor 417 is moved. If it detects, the operation of the third roller unit 420 is stopped.

In addition, the parts alignment supplyer 450 automatically supplies the first and second stopper members using vibration, and the stopper elevator 460 using the lifting cylinder 461 that can move the piston shaft in the up and down direction has a push pin shape. The first stopper member and the ring-shaped second stopper member are transported to the pressing position of the stopper fastening part 400. The stopper members carried in the crimped position are disposed on both sides of the webbing 50, and the stopper presser 410 compresses the stopper members to the webbing 50.

The PLC 600 operates the fourth roller part 520 by a separate sensor (not shown) that detects the end of the operation of the stopper presser 410. As a result, the end of the webbing 50 opposite the fixing pin is It is injected into the mold unit 510 of the end assembly 500.

The mold unit 510 of the end assembly 500 includes a narrow tube-shaped inlet block 540 and a third jig block 530 for arranging the end mount at a predetermined position of the webbing 50 opposite the fixing pin. Roll the end and insert it into the fastening hole of the end mount. Subsequently, the end of the webbing 50 opposite the fixing pin penetrating through the fastening hole of the end mount is finished by sewing in a separate sewing facility, thereby completing the assembly process. Here, of course, the separate sewing equipment can be installed in the housing 10 of the present invention. The series of processes described above are performed repeatedly to mass produce seat belt assemblies.

As described in detail above, the factory automation equipment for seat belt assembly having the webbing input part of the present invention can be easily and quickly put the webbing into the retractor as the webbing input part, and is repeatedly operated by a PLC or a process logic controller, The advantage is that the assembly of the seat belt in large quantities can be mass produced accurately and quickly.

In addition, the factory automation equipment for seat belt assembly having a webbing input of the present invention by pressing the webbing vertically inserted in the horizontal direction horizontally, to assist the transfer of the webbing, there is an advantage that can prevent the webbing from twisting during assembly work There is this.

In addition, the factory automation equipment for seat belt assembly having a webbing input of the present invention has the advantage that the installation area can be efficiently used by arranging the mounting direction of the webbing input, the webbing receiving device, the component providing unit and the stopper fastening unit vertically There is this.

In addition, the factory automation equipment for seat belt assembly having a webbing input of the present invention is installed on the housing having a height adjustable shock-absorbing support and moving wheels, it is easy to install and store, the convenience of movement in case of have.

In addition, the factory automation equipment for seat belt assembly having a webbing input of the present invention is very economical because it uses a method of providing the parts required for the removable jig blocks, which significantly reduces the working environment of the seat belt assembly, which is essential for manual operation. There is an advantage that can be improved.

The technical idea of the factory automation equipment for seat belt assembly having a webbing input of the present invention has been described above with the accompanying drawings, but this is illustrative of the best embodiment of the present invention and is not intended to limit the present invention. In addition, it is obvious that any person skilled in the art can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

Claims (8)

In assembling the retractor 40 and the webbing 50, in the factory automation equipment for seat belt assembly for inserting a plurality of parts into the webbing 50, The webbing input unit 100 and the webbing receiving unit 200, the component providing unit 300, and the stopper arranged to perform a series of seat belt assembly processes controlled by the process logic controller 600 at the upper portion of the housing 10. Consists of the fastening part 400 and the end assembly 500, The webbing inlet 100 has a box-shaped cylinder assembly 110 having the insertion block 111 fixed therein, an actuator 112 for moving the box-shaped cylinder assembly 110 in the axial direction, and the box-shaped cylinder. The first roller part 120 for webbing conveyance fixed to the assembly 110, the input plates 125 fixed to the outlet side of the first roller part 120, and the retractor 40 are connected to the housing ( 10) factory automation for seat belt assembly having a webbing input, characterized in that it comprises a jig 130 for standing and seating, and positioning means (140, 150) of the guide web (42) of the retractor (40) equipment. The method of claim 1, The box-shaped cylinder assembly 110 of the webbing inlet 100 is attached to the step motor 115 that can rotate the crosspiece 114 for pressing the webbing 50 in the horizontal direction with a finite rotation radius. Factory automation equipment for seat belt assembly having a webbing input characterized in that. The method according to claim 1 or 2, The box-shaped cylinder assembly 110 is a factory automation facility for seat belt assembly having a webbing input, characterized in that the first webbing sensor (116) for detecting the presence or absence of the insertion of the webbing (50) is attached. The method of claim 1, The first roller part 120 is simultaneously rotated by the first roller 121 and the first roller 121 rotated by the driving force of the step motor 123 and the first roller by the pneumatic strut 124. Factory automation equipment for seat belt assembly having a webbing input, characterized in that it comprises a second roller (122) formed to be able to move toward (121). The method of claim 1, The input plates 125 are bent in a venturi shape so that the interval therebetween is gradually reduced, so that the reel side holes 41 of the retractor 40 when the shaft of the box-shaped cylinder assembly 110 and the first roller portion 120 are moved. And a webbing input, characterized in that it is inserted into the web hole (43) of the guide web (42). The method of claim 1, The input plate 125 is a factory automation facility for seat belt assembly having a webbing input, characterized in that the fixing pin sensor 126 for detecting the end of the fixing pin side webbing (50) is attached. The method of claim 1, The sheet having the webbing input part is characterized in that the input plate sensor 127 for detecting whether the input plate 125 is inserted into the upper plate 13 of the housing 10 to which the input plate 125 is moved. Factory automation equipment for belt assembly. The method of claim 1, The housing 10 forms a box-shaped body with a rectangular skeletal frame 11, and a webbing input, characterized in that the lower portion is provided with shock absorbing support parts 20 and wheels 30 for height adjustment. Factory automation equipment for seat belt assembly with parts.