JP5694395B2 - Vehicle assembly equipment - Google Patents

Description

  The present invention relates to a vehicle assembly apparatus for attaching a door to a moving vehicle body.

  In general vehicle assembly, the door is removed after painting the body (white body). A window regulator, door glass, and harness are attached to the removed door (door side outfitting). In-vehicle parts are thrown into the vehicle body without a door from the door opening and assembled (body side outfitting).

After outfitting, the door is reattached to the car body. An assembly device is used for this reattachment.
Various types of vehicle assembly apparatuses for attaching a door to a moving vehicle body are known (see, for example, Patent Document 1 (FIG. 8)).

Patent document 1 is demonstrated based on the following figure.
FIG. 11 is a diagram for explaining the basic principle of a conventional vehicle assembly apparatus. The vehicle body 102 is continuously conveyed by the vehicle body conveyor 101 as indicated by the arrow (1).
On the side of the vehicle body 102, an oval conveyor 103 that circulates as indicated by an arrow (2) is provided, and a plurality of carriers 104 are circulated and conveyed by the oval conveyor 103.

By the lifter 105, the front door 106 or the rear door 107 is moved to the carrier 104 and conveyed to the vehicle body 102.
The oval conveyor 103 is rotated at a high speed with respect to the vehicle body 102 that is continuously conveyed. Then, the front door 106 catches up with the vehicle body 102. At this time, the elliptical conveyor 103 is set to the same speed as the vehicle body conveyor 101, and the front door 106 is attached to the vehicle body 102 during the same speed. Next, the elliptical conveyor 103 is rotated at high speed. Then, the rear door 107 catches up with the vehicle body 102. At this time, the elliptical conveyor 103 is set to the same speed as the vehicle body conveyor 101, and the rear door 107 is attached to the vehicle body 102 during the same speed.

In the figure, between the position P1 of the lifter 5 and the position P2 where the rear door 107 is attached to the vehicle body 102, the carrier 104 plays a role of transporting the front door 106 or the rear door 107. However, in the remaining range A, the carrier 104 is empty.
That is, the effective operating rate of the carrier 104 is about 50%.
In order to make effective use of the vehicle assembly apparatus, it is required to increase the operating rate.

Further, if the timing for switching from high speed to the same speed is delayed, the front door 106 or the rear door 107 may collide with the vehicle body 102. Conversely, if the timing for switching from high speed to the same speed is too fast, the front door 106 or the rear door 107 remains separated from the vehicle body 102, so the front door 106 or the rear door 107 is manually moved toward the vehicle body 102, etc. Extra work is added.
Thus, since the arrow (1) and the arrow (2) are in the same direction, matching (matching operation) between the vehicle body 102 and the front door 106 or the rear door 107 is difficult.
There is a need for a vehicle assembly apparatus that can easily match the vehicle body and the door.

JP 60-135383 A

  It is an object of the present invention to provide a vehicle assembly device that has a high effective operating rate and can easily match a vehicle body and a door.

The invention according to claim 1 is a vehicle assembly device for attaching a door to a vehicle body moving from upstream to downstream,
A fixed rail extending along the moving center line of the vehicle body;
A moving frame suspended movably on the fixed rail;
A moving rail provided in the moving frame and extending in a direction perpendicular to the moving center line;
A moving plate attached to the moving rail so as to be movable in a direction perpendicular to the moving center line;
A door support mechanism that is suspended from the moving plate and supports the door;
A door pedestal that is provided at a position where the door can be received by the door support mechanism when the moving plate is moved away from the moving center line at a downstream position;
A kick member attached to the moving plate and extending toward the moving center line;
A first sensor that is disposed near the moving center line and is operated by the kick member to detect that the moving plate has reached a predetermined position near the moving center line;
An elevating member attached to the moving frame at a position near the moving center line and rising based on detection information of the first sensor;
A second sensor for detecting the arrival at the downstream side is operated by the elevating member when the rose attached to the fixed rail at a position downstream said door support mechanism deviates from the allowable working range of the previous SL fixed rail It is characterized by comprising.

  The invention according to claim 2 is characterized in that the door support mechanism is suspended from the movable plate so as to be rotatable about the vertical axis.

  The invention according to claim 3 is characterized in that a contact member that comes into contact with a door that moves from the downstream to the upstream is detachably attached to the vehicle body that moves from the upstream to the downstream.

  In the invention according to claim 1, the door is moved from the downstream to the upstream with respect to the vehicle body moving from the upstream to the downstream. During the movement until the door reaches the vehicle body, the worker can visually check around the door. Since the car body is a car body in the welding process, it is desired to check the dents and scratches on the door. After the door reaches the car body, the door is attached to the car body. During this installation operation, the door support mechanism reaches downstream. That is, the door is hung from the downstream side to the upstream side to the downstream side of the door support mechanism, and the operation rate of the door support mechanism, that is, the operation rate of the vehicle assembly apparatus is greatly increased.

  Further, since the door moves from the downstream to the upstream with respect to the vehicle body moving from the upstream to the downstream, the door always reaches the vehicle body. After reaching the door, the movable frame is suspended from the fixed rail so that the door moves with the vehicle body. What is necessary is just to attach a door to a vehicle body during this movement. That is, the matching between the vehicle body and the door is extremely easy. Therefore, according to the present invention, there is provided a vehicle assembly apparatus that has a high effective operation rate and that can easily match a vehicle body and a door.

  In the invention according to claim 2, since the door support mechanism is suspended from the movable plate so as to be rotatable about the vertical axis, the door can be turned to a suitable angle with respect to the vehicle body, Workability increases.

In the invention which concerns on Claim 3, the contact member contact | abutted to the door which moves downstream from the upstream is attached to the vehicle body moving from upstream to downstream so that attachment or detachment is possible.
Since the door can be matched to the vehicle body simply by abutting the door on the abutting member, the workability is further enhanced. That is, it is preferable that the contact member is attached to the vehicle body at an angle so that the door can be easily connected to the vehicle body after contact.

1 is a plan view of a vehicle assembly device according to the present invention. It is a top view of a moving frame. FIG. 3 is a view taken along arrow 3-3 in FIG. 2. It is an operation view of a J-shaped member. Fig. 5 is a view taken in the direction of arrows 5-5 in Fig. 2. It is an effect | action figure of a 1st, 2nd sensor. It is an effect | action figure which moves a door from the downstream to the upstream. It is a figure explaining an operation of a worker. It is an effect | action figure from a door attachment to making a door support mechanism wait. It is a figure which contrasts an Example and a comparative example. It is a figure explaining the basic principle of the conventional vehicle assembly apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

  As shown in FIG. 1, in the vehicle assembly apparatus 10, the vehicle body 11 continuously moves as indicated by an outlined arrow by a conveyor (FIG. 8, reference numeral 65).

In the present invention, the side of the vehicle body 11 indicated by a solid line is referred to as “upstream”, and the side on which the door stand 12 is illustrated is referred to as “downstream”.
The left door facility and the right door facility are arranged symmetrically with respect to the movement center line 13. In the following description, equipment for the left door, that is, equipment below the drawing from the movement center line 13 will be described, and explanation of equipment for the right door will be omitted.

  The vehicle assembly apparatus 10 is referred to as the inside / outside fixed rails 14 and 15 extending along the movement center line 13 of the vehicle body 11 (reference numeral 14 is the inner side because it is on the movement center line 13 side. Reference numeral 15 is the outer side. )), A moving frame 16 suspended from the fixed rails 14 and 15, a door pedestal 12 disposed on the downstream side and outside the fixed rail 15, and mechanisms described in FIG. .

The fixed rails 14 and 15 are fixed directly or indirectly to the factory building.
The moving frame 16 is suspended from the fixed rails 14 and 15 so as to be movable from downstream to upstream (or from upstream to downstream).
Details of the moving frame 16 will be described next.

As shown in FIG. 2, the moving frame 16 is a rectangular frame that extends from the fixed rail 15 to the fixed rail 14.
FIG. 3 is a view taken in the direction of arrow 3-3 in FIG. Is shown on the left.

  As shown in FIG. 3, the moving frame 16 is suspended from the fixed rail 15 via the rolls 17 and 17 and the stays 18 and 18, and the moving frames 16 are rotated by the rotation of the rolls 17 and 17. It is movable in the left-right direction (direction along the movement center line 13 in FIG. 1).

  A pair of moving rails 19, 19 are provided on the moving frame 16, and the moving plate 23 is suspended from the moving rails 19, 19 via rolls 21, 21 and stays 22, 22. When the rolls 21 and 21 are rotated, the moving plate 23 is movable in the drawing front / back direction (direction perpendicular to the moving center line 13 in FIG. 1).

The door support mechanism 30 is suspended from the moving plate 23 via the vertical shaft 24.
The door support mechanism 30 is attached to the top plate 31, a power assist cylinder 32 suspended from the top plate 31, an attachment 33 attached to a piston rod extending downward from the power assist cylinder 32, and the attachment 33. A handle 35, a horizontal shaft 36 attached to the attachment 33, an arm 37 with one end fixed to the horizontal shaft 36, a J-shaped member 38 attached to the arm 37, and an operation provided at one end of the horizontal shaft 36 A lever 39 operated by a member (FIG. 8, reference numeral 62), a door receiving member 41 extending upward from the vicinity of the horizontal shaft 36, a soft material 42 attached to the upper portion of the door receiving member 41, and the top plate 31 A stopper pin 43 provided in a vertical direction, and a pulling member that pulls the stopper pin 43 against a spring (not shown). Consisting member 44. The pulling member 44 may be a rope, string, rope, wire, or rod.

  The power assist cylinder 32 is a hydraulic damper with a built-in spring, and the piston moves when an external force of a certain level or more is applied, and the piston does not move even when an external force of less than a certain level is applied. When the door 45 is suspended, the height position is maintained, and when the worker applies a force upward or downward, the door 45 moves upward or downward. Since the worker does not need to support the door 45, it is called power assist.

As shown in FIG. 2, a first hole 46 and a second hole 47 are provided on the moving plate 23 side. For example, the first hole 46 is used for positioning when the door 45 of the door cradle 12 is gripped, and the second hole 47 is formed on the contact member 61 attached to the vehicle body 11 when the door 45 is attached to the vehicle body 11. Used to position the door 45 at an angle along.
The stopper pin 43 inserted into the first hole 46 or the second hole 47 can be forcibly pulled out by the pulling member 44 shown in FIG. When the pulling member 44 is loosened, the stopper pin 43 biased by the spring is inserted into the first hole 46 or the second hole 47.

Next, the operation of the J-shaped member 38 will be described.
In FIG. 4A, the J-shaped member 38 is in the standby position. When the lever 39 is raised and the horizontal shaft 36 is rotated about 90 °, the J-shaped member 38 assumes a vertical orientation as shown in FIG. Next, when the whole (J-shaped member 38, horizontal shaft 36, lever 39) is raised, the claw 48 can be hooked on the opening of the door 45 as shown in FIG.

  As a result, the door 45 indicated by an imaginary line in FIG. 3 is sandwiched between the claw 48 and the soft material 42. Since it is the soft material 42, there is no worry that the door 45 is damaged. After the door 45 is fixed to the vehicle body with bolts, the J-shaped member 38 is lowered and operated in the order of FIG. 4 (b) → FIG. 4 (a). Can be returned to.

  In FIG. 2, a kick member 51 composed of two strips extends from the rectangular moving plate 23 toward the inner fixed rail 14. In addition, an elevating member 52 is attached to the movable frame 16 in the vicinity of the inner fixed rail 14. A second sensor 53 is arranged on the locus of the elevating member 52, and the second sensor 53 is fixed to the fixed rail 14. In addition, the 2nd sensor 53 is arrange | positioned downstream as shown in FIG.

  As shown in FIG. 5, which is a view taken along arrow 5-5 in FIG. 2, the cross member 54 is passed to the moving frame body 16, and the cylinder unit 59 is attached to the cross member 54. As shown in FIG. 2, the cylinder units 59, 59 are arranged at positions that do not interfere with the kick member 51.

In FIG. 5, the elevating member 52 is attached to the upper end of the rod 55 of the cylinder unit 59. The other end of the rod 55 is urged by the compression spring 56, and the elevating member 52 is urged downward. A first sensor 57 is attached to the lifting member 52 and in front of the kick member 51 in the traveling direction.
Since the first sensor 57 is in the off state and the elevating member 52 is in the lower position, the second sensor 53 disposed at the back of the drawing is also in the off state.

When the kick member 51 moves toward the elevating member 52 as the moving plate (FIG. 2, reference numeral 23) moves, the tip of the elevating member 52 turns the first sensor 57 on. Based on the ON signal, the cylinder unit 59 raises the elevating member 52.
If the moving frame 16 moves to the back of the drawing in this state, the second sensor 53 is turned on by the elevating member 52.

  The first and second sensors 53 are preferably mechanical limit switches, but may be proximity switches or non-contact photoelectric switches, and the types and forms are arbitrary.

The operation of the vehicle assembly apparatus configured as described above will be comprehensively described with reference to FIGS.
In FIG. 7A, the door 45 is placed on the door stand 12.
At this time, the vehicle body 11 is upstream, and a contact member 61 as a jig is obliquely attached to the vehicle body 11. Then, the door support mechanism 30 is moved to the vicinity of the door cradle 12 and the door 45 of the door cradle 12 is gripped.

  In FIG. 7B, the door support mechanism 30 is moved upstream as indicated by an arrow (3). On the way, the door support mechanism 30 is turned about 45 ° as indicated by an arrow (4). Then, the door support mechanism 30 is moved closer to the vehicle body 11 as indicated by the arrow (5).

  The operation of FIG. 7B will be supplemented with FIG. The operator 62 grasps the handle 35, pulls the pulling member 44, rotates the top plate 31 by 45 °, and engages the stopper pin 43 with the second hole 47 to turn and move the door support mechanism 30. Can do. The door 45 is brought close to the vehicle body 11 upstream. The vehicle body 11 is moving downstream.

As illustrated in FIG. 7C, the door 45 moves upstream with the door support mechanism 30, and the contact member 61 moves downstream with the vehicle body 11, so the door 45 easily contacts the contact member 61. Since the contact member 61 is slanted, the door 45 is held at an angle at which it can be easily fastened to the vehicle body 11 after the contact. Since the door 45 is pushed by the contact member 61 after the contact, the vehicle body 11 and the door support mechanism 30 move downstream in synchronization.
At the time of FIG. 7C, the first sensor 57 is turned on by the kick member 51 as shown in FIG. When the first sensor 57 is turned on, it is recognized that the door 45 has reached the mounting position on the vehicle body 11.

In FIG. 9A, the door 45 is attached to the contact member 61 of the vehicle body 11 by tightening the bolt with a hand tool called an impact wrench. Since the door 45 is held in the middle open state, the attachment is facilitated.
When the attachment is completed, the door support mechanism 30 is returned to the standby position in the vicinity of the door cradle 12 as shown in FIG. At this time, the kick member 51 moves closer to the outer fixed rail 15, so that the state changes from FIG. 6 to FIG. 5. That is, the first sensor 57 is turned off and the end of work is recognized.

By the way, the door mounting operation may be delayed due to various circumstances.
At this time, as shown in FIG. 9C, the elevating member 52 is in the raised state in the vicinity of the inner fixed rail 14 as shown in FIG. 6, so that the second sensor 53 is turned on by the elevating member 52. Become. Based on this ON signal, an abnormality is recognized, and measures such as stopping the movement of the vehicle body 11 and interrupting the work are taken.

If the upstream door is installed close to the upstream vehicle body as in the prior art, the fastening work by the hand tool is started at an early point, so that the work is unlikely to be delayed. .
On the other hand, when the door is approached downstream of the upstream vehicle body as in the present invention, the timing at which the door encounters the vehicle body may be midstream or downstream. As a result, work delays are likely to occur. As a countermeasure, a second sensor 53 is provided.

From another viewpoint, the advantages of the present invention over the prior art will be described.
In the comparative example, as shown in FIG. 10A, the door cradle 110 and the door 111 are placed upstream.
The door support mechanism 112 approaches the vehicle body 113 upstream as indicated by an arrow (6), moves downstream as indicated by an arrow (7), moves away from the vehicle body 113 as indicated by an arrow (8), and moves to the arrow (9). Return to the standby position. The arrows (8) and (9) are in a so-called empty state.

On the other hand, in the embodiment, as shown in FIG. 10B, the door cradle 12 and the door 45 are placed downstream.
The door support mechanism 30 that holds the door 45 heads upstream as indicated by an arrow (11), and when encountering the vehicle body 11, the door is attached while moving downstream as indicated by an arrow (12). It returns to the standby position as in (13). Only the arrow (13) is empty.
In particular, the operator can visually inspect the door 45 during the arrow (11). That is, the arrow (11) and the arrow (12) are effectively operated.
As described above, the work efficiency of FIG. 10 (b) is significantly increased as compared with FIG. 10 (a).

  INDUSTRIAL APPLICABILITY The present invention is suitable for an assembling apparatus that is arranged after a vehicle painting process and attaches a door to a vehicle body.

  DESCRIPTION OF SYMBOLS 10 ... Car body assembly apparatus, 11 ... Car body, 12 ... Door stand, 13 ... Moving center line, 14, 15 ... Fixed rail, 16 ... Moving frame, 19 ... Moving rail, 23 ... Moving plate, 24 ... Vertical axis, DESCRIPTION OF SYMBOLS 30 ... Door support mechanism, 45 ... Door, 51 ... Kick member, 52 ... Elevating member, 53 ... 2nd sensor, 57 ... 1st sensor, 61 ... Contact member.

Claims (3)

A vehicle assembly device (10) for attaching a door (45) to a vehicle body (11) moving from upstream to downstream,
Fixed rails (14, 15) extending along the movement center line (13) of the vehicle body (11) ;
A movable frame (16) suspended movably on the fixed rails (14, 15) ;
A moving rail (19) provided on the moving frame (16) and extending in a direction perpendicular to the moving center line (13) ;
A moving plate (23) attached to the moving rail (19) so as to be movable in a direction perpendicular to the moving center line (13) ;
A door support mechanism (30) suspended from the movable plate (23) and supporting the door (45) ;
The door provided at a position where the door (45) can be received by the door support mechanism (30) when the moving plate (23) is moved away from the moving center line (13) at a downstream position. A door table (12 ) for mounting (45) ;
A kick member (51) attached to the moving plate (23) and extending toward the moving center line (13) ;
A first sensor that is disposed near the movement center line (13) and is operated by the kick member (51) to detect that the movement plate (23) has reached a predetermined position near the movement center line (13). (57)
An elevating member (52) attached to the moving frame (16) at a position near the moving center line (13) and rising based on detection information of the first sensor (57) ;
Departing from the operated at elevating member (52) wherein the door support mechanism (30) is permissible working range when mounted rose to the fixed rail at a position downstream of the pre-Symbol fixed rail (14, 15) (14) A second sensor (53) for detecting that it has reached the downstream side,
A vehicle assembling apparatus comprising: The vehicle assembly apparatus according to claim 1, wherein the door support mechanism (30) is suspended from the movable plate (23) so as to be rotatable about a vertical axis. On the body to move from the upstream to the downstream (11), according to claim 1 or, characterized in that abutting contact member to the door (45) that moves from the downstream to the upstream (61) is detachably attached to The vehicle assembly apparatus according to claim 2.

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