JPH0523925A - Floating support mechanism in part assembly device - Google Patents

Abstract

PURPOSE:To make alignment easy by providing a plate freely movable in an assembly direction and freely fixable to a base provided to a travelling frame to rise/fall freely, and providing a pallet via rollers on the plate freely movable in a direction at a right angle to an assembly direction and capable of being positioned. CONSTITUTION:A base 34 is moved upward and downward relative to a travelling frame 16 through a lifting device 30. And, the travelling frame 16 is moved along guides 12, 12 relative to a frame base 10, a pallet 46 is moved together with a plate 40 provided on the base 34 to position the assembly part on the pallet 46 in the mounting position matching the models of vehicle. Further, the plate 40 is moved in an assembly direction by means of sliders 42 make movable contact with the guides 38 on the base 34, and the pallet 46 is moved in a direction at a right angle to the assembly direction by rollers 44 and alignment with a vehicle body is performed, and the plate 40 is fixed to the base 34 by means of locking machines 48, and the pallet 46 to the plate 40 by means of clamping mechanisms 56 respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating support mechanism in a parts assembling apparatus, and more particularly to a floating support mechanism in a parts assembling apparatus which facilitates positioning when assembling parts to be assembled. .

[0002]

2. Description of the Related Art A conventional device of this type is disclosed in Japanese Patent Laid-Open No. 63-
There is a bumper mounting device proposed in Japanese Patent No. 2780. The proposed device is a set having a set base, which is arranged on a side of a mounting station into which an automobile body is loaded, and which can set a bumper and a mounting bolt at fixed positions, and a jig for holding the bumper at an operating end. The robot is equipped with a jig, and the jig is movable between the receiving position where the bumper on the set table is received by the operation of the robot and the mounting position where the bumper is mounted on the vehicle body. The nut runner receives the mounting bolts on the set table at the receiving position, and the mounting bolts are tightened at the mounting position.

[0003]

However, in the above-mentioned device, since the bumper is held by the jig by the suction pad, relative movement between the bumper and the jig is hardly permitted, so that the vehicle body The stopping position at the mounting station of the robot and the mounting position of the jig controlled by the robot must be precisely adjusted, which not only complicates the design and construction of the assembly line, but also the position of the bumper with respect to the car body. If the installation work is carried out with misalignment,
There is a problem that the bumper and the car body may be damaged.

The present invention has been made in view of the above problems, and an object thereof is to allow relative movement between a structure such as a jig for holding an assembly component and an assembly component. do it,
A component assembling apparatus that facilitates the alignment between the assembling component and the assembled component, and can securely fix the jig or other structure that holds the assembling component during movement. To provide a floating support mechanism in.

[0005]

In order to achieve the above-mentioned object, the present invention moves a jig holding an assembly component to the assembly component side by a conveying means to mount the assembly component. In a floating support mechanism in a component assembling apparatus for engaging a component, a first support member provided in the transporting unit, which is relatively movable along an engaging direction of the assembling component,
A second member provided on the first supporting member for mounting the jig so as to be relatively movable in a horizontal direction orthogonal to the engaging direction.
A support member, a restriction means provided on the first support member for restricting relative movement of the jig in the engagement direction with respect to the first support member, and the jig and the first support member are engaged with each other. And a locking unit which is positioned at a reference position and is fixedly locked to be detachable from the transport unit side.

Here, the locking means locks the first support member with the first locking means and the jig locks with the second locking means.
Locking means, wherein the first locking means includes a first fitting hole provided in a lower surface of the first supporting member and a first fitting member of the first supporting member located at the engagement reference position. A first pin attached to the conveying means so that its axis coincides with the first fitting hole and movable up and down; and the second engaging means is a second fitting provided on the lower surface of the jig. It is preferable that the hole includes a hole and a second pin that is attached to the first support member and that can move up and down so that an axis of the hole is aligned with a second fitting hole of the jig located at the engagement reference position. .

Alternatively, the locking means is formed on the lower surface of the jig with a through hole that vertically penetrates through the first support member, and the axis of the through hole is aligned with the through hole at the engagement reference position. Which is attached to the conveying means so that the axes of the fitting hole, the through hole of the first support member located at the engagement reference position, and the fitting hole of the jig are aligned with each other. It is desirable that it consists of a pin.

[0008]

The operation of the present invention will be described. The first support member is provided so as to be relatively movable with respect to the conveying means along the engaging direction of the assembly component, and the jig holding the assembly component is
Since the second support member provided on the first support member is relatively movable in the horizontal direction orthogonal to the engaging direction, the second support member is fixed on the first support member. The jig holding the mounted assembly component is movable in the horizontal plane, and the alignment between the assembly component and the assembly target component held by the jig is facilitated. At this time, the jig is moved to the first position by the locking means for fixing and locking the jig from the conveying means side.
The engagement reference position is set with respect to the support member. In addition, since the jig restricts the relative movement of the jig along the engaging direction with respect to the first supporting member via the restricting means, the first supporting member can be fixed to the engagement reference position via the engaging means. It is possible to securely fix the jig holding the assembly parts as needed, such as during transportation and movement.

The locking means is fitted in a first fitting hole provided on the lower surface of the first supporting member located at the engagement reference position, and a first pin attached to the conveying means is movable up and down. First locking means for locking and locking the first support member by combining them,
The second provided on the lower surface of the jig arranged at the engagement reference position
Similar to the above-mentioned locking means, the second pin, which is attached to the first supporting member and is movable up and down, is fitted in the fitting hole to lock the jig. Is obtained.

Alternatively, the locking means may be formed through the through hole provided above and below the first supporting member, and the through hole of the first supporting member may be formed on the lower surface of the jig and may be at the engagement reference position. A pin having a fitting axis with which the axis coincides, and which is attached to the conveying means and is movable up and down, and is fitted into the through hole of the first support member and the fitting hole of the jig; By configuring the first support member and the jig to be locked with respect to the conveying means, the same operation as the locking means can be obtained with a simpler configuration.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a front view of an automatic front nose mounting apparatus for an automobile that employs a floating support mechanism in a component mounting apparatus according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof. The assembling direction of the front nose is the front direction orthogonal to the paper surface in FIG. 1, the right direction in the drawing in FIG. 2, and the downward direction in the drawing in FIG.

As shown in FIGS. 1 and 2, two guides 12 and 1 are arranged in parallel with the upper surface of the horizontal beam forming the gantry 10.
2 are laid. A traveling frame 16 is mounted on each guide 12 via a slider 14 so as to be slidably movable in the left-right direction in FIG.

A traveling servomotor 18 is disposed on the traveling frame 16 so that its output shaft extends vertically downward, and a drive pinion 20 is fixedly provided at the tip of the output shaft. The drive pinion 20 meshes with a rack 22 arranged on the gantry 10 between the two guides 12, 12 in parallel with each other, and the traveling servomotor 1
By driving the drive pinion 20, the drive pinion 20 is moved to the rack 2
The traveling frame 16 is configured to be able to slide while moving along with the guides 12 and 12 as described above, while rolling and moving while engaging with 2.

As shown in FIG. 1, an elevating servomotor 26 is provided at an end of the traveling frame 16 via a support frame 24, and an output shaft of the elevating servomotor 26 is formed by a transmission shaft 28. It is connected to 30. The lifting device 30 converts the rotational driving force of the lifting servomotor 26 into the vertical movement of the bellows 32, so that the base 34, which is fixedly mounted on the bellows 32 and serves as a conveying means, can be moved up and down. Further, two balance cylinders 36, 36 are provided between the traveling frame 16 and the base 34,
By partially bearing the load of the base 34, the driving force of the lifting servomotor 26 is assisted.

Guides 38, 38 are provided at both ends of the upper surface of the base 34 along the moving direction of the traveling frame 16, that is, the same direction as the assembling direction. A plate 40, which is a first support member, is mounted on the guides 38, 38 slidably along the guides 38, 38 via sliders 42, 42 fixed to the bottom surface of the plate 40. ing.

On the upper surface of the plate 40, there is provided a roller 44 as a second support member which is rotatably supported by a support shaft arranged parallel to the sliding movement direction of the plate 40. On the roller 44, a pallet 46, which is a jig holding a front nose attached by the automatic attachment device of this embodiment, is placed (shown by a chain double-dashed line in FIGS. 1 and 2). Therefore, the pallet 46 placed on the roller 44 can be translated in the direction orthogonal to the sliding direction of the plate 40.

The base 34 is provided with a lock mechanism 48 as a first locking means. This locking mechanism 48
The plate 40 is locked and fixed to the base 34, and as shown in FIG. 4, a locking block 50 having a first fitting hole 51 fixedly provided on the lower surface of the plate 40 and a first pin The lock member 52 and a lock mechanism actuator 54 fixed to the base 34 are included.
The lock mechanism actuator 54 causes the lock member 5
When 2 is moved upward and the lock member 52 is fitted into the first fitting hole 51 of the locking block 50, the plate 40 is locked with respect to the base 34, and the lock member 52 is locked.
The plate 40 is in a floating state with respect to the base 34 (a state in which the plate 40 can move in the assembling direction with respect to the base 34) in a state where the plate 40 is descending.

The plate 40 is provided with two sets of clamp mechanisms 56 as restricting means so as to oppose each other along the sliding movement direction of the plate 40, that is, the assembling direction. The clamp mechanism 56 includes a clamp 58 and a clamp mechanism actuator 60. When the clamp mechanism actuator 60 is operated, the clamps 58, 58 opposed to each other clamp and hold the pallet 46 placed on the roller 44, and restrict the movement of the pallet 46 in the assembling direction. Since a roller is provided at an engaging portion of each clamp 58 with the pallet 46, movement of the pallet 46 in a direction orthogonal to the assembling direction is allowed.

The plate 40 is also provided with a pair of positioning mechanisms 62 as second locking means at intervals in the sliding movement direction of the plate 40, that is, in the direction orthogonal to the assembling direction. The positioning mechanism 62 includes a reference pin 64 that is a second pin and a positioning mechanism actuator 66. For positioning the pallet 46, the reference pin 64 is moved upward by the actuator 66 for the positioning mechanism, and the reference pin insertion holes as the second fitting holes at the two places formed in the pallet 46 placed on the roller 44. It is performed by being inserted into.

Next, the operation of this embodiment will be described.
The base 34 is provided movably in the vertical direction with respect to the traveling frame 16 via the elevating device 30, and the traveling frame 16 is slidably movable along the guides 12, 12 laid on the frame 10. Therefore, the pallet 4 mounted on the plate 40 provided in engagement with the base 34
6 is arranged at a predetermined mounting position according to the vehicle model to which the front nose, which is an assembly component held by the pallet 46, is mounted.

Further, the plate 40 can be slidably moved in the traveling direction of the traveling frame 16, that is, in the same direction as the assembling direction through the sliders 42, 42 slidably contacting the guides 38, 38 provided on the base 34. Since the pallet 46 mounted on the roller 44 provided on the 40 can move in the sliding movement direction of the plate 40, that is, in the direction orthogonal to the assembling direction, the pallet 46 holding the front nose and the front nose are assembled. The alignment with the vehicle body to be mounted is easily performed.

Further, the pallet 46 can be easily assembled into a component to be assembled and a component to be assembled by inserting the reference pin 64 of the positioning mechanism 62 provided on the plate 40 into the reference pin insertion hole formed in the pallet 46. Is arranged at the engagement reference position. Then, the pallet 46 placed on the plate 40 is clamped and fixed from both side surfaces thereof by the clamp mechanism 56, whereby the pallet 46 is securely fixed to the plate 40. Further, by locking the plate 40 to the base 34 by the lock mechanism 48, the pallet 46 is fixed to the base 34, and the pallet 46 is moved during the movement of the traveling frame 16 to the assembly component mounting position. Can be held securely.

Next, an automatic front nose mounting apparatus for an automobile will be described which employs another embodiment of the floating support mechanism in the component mounting apparatus according to the present invention. Figure 5
Is a front view of an automatic front nose attaching device adopting another embodiment of the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a plan view thereof. The assembling direction of the front nose in each drawing is the same as in the case of FIGS.

In this embodiment, the operations of both the lock mechanism 48 and the positioning mechanism 62 in the first embodiment are
The locking and positioning mechanism 70 as a locking means is used. That is, in the first embodiment, the plate 40 is locked to the base 34 by the lock mechanism 48,
The positioning of the pallet 46 mounted on the roller 44 provided on the plate 40 with respect to the plate 40 is performed by inserting the reference pin 64 of the positioning mechanism 62 into the reference pin insertion hole provided on the pallet 46. In the present embodiment, the reference lock pin 72, which is a pin of the positioning / locking mechanism 70 provided on the base 34 and is movable up and down, is moved up and down by the positioning / locking mechanism actuator 74, whereby the reference lock pin 72 is lowered. At times, a gap is formed between the reference lock pin 72 and the through hole provided in the plate 40 through which the reference lock pin 72 is inserted and the fitting hole provided in the pallet 46 to allow the pallet 46 to move in a horizontal plane with respect to the base 34. , The plate 40 and the pallet 46 are inserted through them when the reference lock pin 72 is raised. It is to be fixed to the base 34 by the reference lock pin 72 that. With such a structure, the same operation as that described in the first embodiment can be obtained with a simpler structure.

The structure and operation of the other parts are the same as those described in the first embodiment.

[0026]

As described in detail above, according to the present invention,
The first supporting member is provided so as to be movable relative to the conveying means along the engaging direction of the assembling component, and the jig holding the assembling component is arranged in the engaging direction via the second supporting member. Since it is relatively movable in the horizontal direction orthogonal to each other, the jig holding the assembly component mounted on the second support member fixed to the first support member is movable in the horizontal plane. The position of the assembled component held by the jig and the assembled component can be easily adjusted. At this time, the jig is easily positioned at the engagement reference position with respect to the first support member by the locking means that fixes and locks the jig from the conveying means side. In addition, the relative movement of the jig along the engagement direction with respect to the first supporting member is regulated by the regulating means, and the first supporting member can be fixed to the conveying means by the locking means. Various excellent effects can be achieved, such as the jig holding can be securely fixed as needed during transportation and movement.

At this time, the locking means is provided in a first fitting hole provided in the lower surface of the first supporting member arranged at the engagement reference position, and a first pin which is attached to the conveying means and is movable up and down. To the first support member and the second fitting hole provided on the lower surface of the jig arranged at the engagement reference position to fix the first support member to the first support member. The same effect as that of the locking means can also be obtained by configuring the attached second pin which can be moved up and down freely by the second locking means which locks the jig by fitting the second pin up.

Alternatively, the locking means may be formed through the through hole provided above and below the first supporting member and the through hole of the first supporting member formed at the lower surface of the jig at the engagement reference position. A pin that has a fitting hole whose axis coincides with each other and that is attached to the conveying means and that can be moved up and down is raised to fit the through hole and the fitting hole to engage the first support member and the jig. By adopting the structure for stopping, the same effect as that of the locking means can be obtained with a simpler structure.

[Brief description of drawings]

FIG. 1 is a front view of a front nose automatic attachment device adopting an embodiment of a floating support mechanism in a component assembly device according to the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of FIG.

FIG. 4 is a schematic diagram showing a configuration of a lock mechanism.

FIG. 5 is a front view of an automatic front nose attaching device that employs another embodiment of the floating support mechanism in the component assembling device according to the present invention.

FIG. 6 is a side view of FIG.

FIG. 7 is a plan view of FIG.

[Explanation of symbols]

16 traveling frame 18 Traveling servo motor 26 Servo motor for lifting and lowering 30 Lifting device 34 base 36 Balance cylinder 38 Guide 40 plates 42 Slider 44 Roller 46 pallets 48 lock mechanism 56 Clamp mechanism 62 Positioning mechanism 70 Positioning and locking mechanism

Claims (3)

[Claims] 1. A floating support mechanism in a component assembling apparatus, wherein a jig holding an assembly component is moved to a component to be assembled by a conveying means to engage the assembly component with the component to be assembled, A first supporting member provided on the conveying means and relatively movable along the engaging direction of the assembly part; and a jig provided on the first supporting member for moving the jig in a horizontal direction orthogonal to the engaging direction. Second for mounting relative movement
A support member, a restriction unit provided on the first support member, for restricting relative movement of the jig in the engagement direction with respect to the first support member, and the jig and the first support member. A floating support mechanism in a component assembling apparatus, comprising: locking means that is positioned at a combined reference position and is fixed and locked so as to be detachable from the conveying means side. 2. The locking means has first locking means for locking and locking the first support member and second locking means for locking the jig, and the first locking means The transport means so that the first fitting hole provided on the lower surface of the first supporting member and the first fitting hole of the first supporting member arranged at the engagement reference position have their axes aligned with each other. And a second pin attached to a lower surface of the jig.
A fitting hole; and a second pin, which is attached to the first support member and is movable up and down, so that its axis coincides with the second fitting hole of the jig arranged at the engagement reference position. The floating support mechanism in the component assembly apparatus according to claim 1. 3. The engaging means is formed on a lower surface of the jig with a through hole vertically penetrating the first supporting member, and an axial center of the engaging hole is aligned with the through hole at the engagement reference position. Equipped with the fitting hole, the through hole of the first support member arranged at the engagement reference position, and the fitting hole of the jig so that the axes thereof are aligned with each other, the elevator is movable up and down. The floating support mechanism in the component assembling apparatus according to claim 1, wherein the floating support mechanism comprises: