# US 9,518,820 B2 · Integrated jig for assembling inspection of door assembly and method for operating the same

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- Number: US 9,518,820 B2
- Document ID: US9518820B2
- Status: Granted
- Kind: B2
- Application number: 14/615,270
- Filed: 2015-02-05
- Published: 2016-04-21
- Granted: 2016-12-13
- Earliest claimed: 2014-10-20
- Assignees: Hyundai Motor Company
- Applicants: Hyundai Motor Company
- Inventors: Jung Whan Yeum
- Web page: https://patentgrep.com/patent/US9518820B2

## CPC

- G01B 11/27: for testing the alignment of axes {(means for centering or aligning a light guide within a ferrule G02B6/3834)}
- B62D 65/005: {Inspection and final control devices}
- G01B: MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

An integrated jig for assembling inspection of a door assembly includes a loading module on which a door assembly is held. An alignment module aligns a position of the door assembly to be a reference position and fixes the door assembly to the loading module. A sensor module inspects an assembling state of the door assembly.

## Claims

### Claim 1

An integrated jig for assembling inspection of a door assembly, comprising:
a loading module on which the door assembly is held;
an alignment module aligning a position of the door assembly to be a reference position and fix the door assembly to the loading module; and
a sensor module inspecting an assembling state of the door assembly.

### Claim 2 (depends on 1)

The integrated jig according to claim 1, further comprising:
a cooling module cooling the loading module, the alignment module, and the sensor module.

### Claim 3 (depends on 2)

The integrated jig according to claim 2, wherein the cooling module includes:
a space forming container in which the loading module, the alignment module, and the sensor module are accommodated and having a hexahedron shape with one opened surface;
an air conditioner mounted inside the space forming container; and
a door selectively opening and closing the opened one surface of the space forming container.

### Claim 4 (depends on 3)

The integrated jig according to claim 3, wherein the door is a rapid roll door (PRD) being closed from an upper portion of the space forming container toward a lower portion thereof and being opened from the lower portion of the space forming container toward the upper portion thereof.

### Claim 5 (depends on 1)

The integrated jig according to claim 1, wherein the loading module includes:
a plurality of loading beams disposed on a ground;
a vacuum cup disposed at an upper end of at least any one of the loading beams and adsorbing onto the door assembly; and
a guide bar disposed at the upper end of at least any one of the loading beams, contacting a side of the door assembly, and preventing the door assembly from moving in a width direction or a length direction of the door assembly.

### Claim 6 (depends on 5)

The integrated jig according to claim 5, wherein the loading beams further include a moving apparatus moving the loading beams on the ground.

### Claim 7 (depends on 6)

The integrated jig according to claim 6, wherein the moving apparatus includes:
a body part attached to the ground;
a moving part embedded in the body part and connected to a lower end of the loading beams; and
an actuator configured to move the moving part.

### Claim 8 (depends on 5)

The integrated jig according to claim 5, wherein the vacuum cup includes:
a vacuum cup pad contacting the door assembly and forming a vacuum space;
a linear rod inserted into the loading beams and having the vacuum cup pad fixed thereto;
a vacuum cup spring wound around the linear rod and provided under the vacuum cup pad; and
a linear brake receiving an elastic force from the vacuum cup spring and mounted in the loading beams to fix the linear rod.

### Claim 9 (depends on 1)

The integrated jig according to claim 1, wherein the alignment module includes:
a plurality of alignment beams disposed on a ground;
a vertical moving apparatus provided at the alignment beam to move along a length direction of the alignment beam;
a horizontal moving apparatus be interposed between the alignment beam and the ground, and horizontally moving the alignment beam; and
a control pin provided at the vertical moving apparatus.

### Claim 10 (depends on 9)

The integrated jig according to claim 9, wherein the vertical moving apparatus includes a load cell configured to measure a force generated while the vertical moving apparatus moves.

### Claim 11 (depends on 9)

The integrated jig according to claim 9, wherein the horizontal moving apparatus includes:
a first body part fixed on the ground;
a first moving part embedded in the first body part and moving along a length direction of the first body part; and
a first actuator configured to move the first moving part.

### Claim 12 (depends on 11)

The integrated jig according to claim 11, wherein the horizontal moving apparatus includes:
a second body part disposed at an upper end of the first body part such that a central axis in a length direction of the second body part is vertical to a central axis in the length direction of the first body part and restrictively connected to the first moving part;
a second moving part embedded in the second body part and moving along the length direction of the second body part; and
a second actuator moving the second moving part.

### Claim 13 (depends on 9)

The integrated jig according to claim 9, wherein the control pin includes:
horizontal bar protruding in a width direction of the alignment beam from the vertical moving apparatus;
a pin provided on a bottom surface of the horizontal bar and vertically protruding toward the ground; and
a laser displacement sensor provided at the horizontal bar and horizontal to the pin.

### Claim 14 (depends on 1)

The integrated jig according to claim 1, wherein the sensor module includes:
a frame in which the loading module and the alignment module are accommodated;
a plurality of rails provided in the frame; and
a sensor body vertically and horizontally moving along the rails.

### Claim 15 (depends on 14)

The integrated jig according to claim 14, wherein the frame includes:
a plurality of pillars disposed on a ground at which the loading module and the alignment module are positioned; and
a plurality of horizontal beams connecting at least two of the pillars to each other.

### Claim 16 (depends on 15)

The integrated jig according to claim 15, wherein the rail includes:
a plurality of horizontal rails each of which provided at the horizontal beam of the frame; and
a moving rail connected to different horizontal rails and having both ends moving along the horizontal rails.

### Claim 17 (depends on 14)

The integrated jig according to claim 14, wherein the sensor body includes:
a laser generating optical device generating a line laser toward a coupling portion of the door assembly; and
a camera photographing an image of the line laser focused on the coupling portion.

### Claim 18 (depends on 1)

The integrated jig according to claim 1, wherein the sensor module further includes:
a calibration block provided at one side of the loading module and the alignment module.

### Claim 19 (depends on 18)

The integrated jig according to claim 18, wherein the calibration block includes:
a block pillar disposed on a ground;
a reference hole vertically formed at an upper end of the block pillar; and
a cooling water flowing channel formed inside the block pillar to maintain the block pillar at a reference temperature.

### Claim 20

A method for operating an integrated jig for assembling inspection of a door assembly, the method comprising steps of:
holding the door assembly on a loading module;
fixing, by an alignment module, the door assembly on the loading module; and
inspecting, by a sensor module disposed over the loading module, an assembling state of the door assembly.

### Claim 21 (depends on 20)

The method according to claim 20, wherein the step of holding the door assembly on the loading module includes steps of:
detaching, by a robot, the door assembly from a moving jig;
holding the door assembly on the loading module; and
operating a moving apparatus provided in the loading module and aligning the door assembly.

### Claim 22 (depends on 20)

The method according to claim 20, wherein the step of fixing the door assembly to the loading module includes steps of:
operating a horizontal moving apparatus provided in the alignment module arranged on a vertical line to align a control pin provided in the alignment module and a hole formed in the door assembly; and
operating a vertical moving apparatus provided in the alignment module to fix the control pin into the hole and aligning the door assembly.

### Claim 23 (depends on 22)

The method according to claim 22, wherein the step of operating the vertical moving apparatus continues until the door assembly reaches a preset height, and
when the door assembly reaches the preset height, a brake provided in the loading module is operated.

### Claim 24 (depends on 23)

The method according to claim 23, wherein in the step of operating the vertical moving apparatus, when a value measured by a laser displacement sensor provided in the alignment module is different from a preset value, it is determined that the door assembly is not aligned.

### Claim 25 (depends on 23)

The method according to claim 23, wherein in the step of operating the vertical moving apparatus, when a measurement value of a load cell provided in the vertical moving apparatus is increased, it is determined that matching between the control pin with the hole is poor.

### Claim 26 (depends on 20)

The method according to claim 20, wherein the step of inspecting the assembling state of the door assembly by the sensor module includes steps of:
moving the sensor module along a rail provided in a frame in which the loading module and the alignment module are accommodated;
operating a laser generating optical device provided in the sensor module to irradiate a line laser to the door assembly; and
photographing, by a camera provided in the sensor module, an image of the line laser focused on the door assembly.

### Claim 27 (depends on 20)

The method according to claim 20, further comprising a step of:
measuring, by the sensor module, a calibration block provided at one side of the loading module to confirm a measurement origin point.