JPH09183028A - Loader device of constant-velocity joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable quick resetting without depending on manual operations by enabling remote control and automatic operation. SOLUTION: A slider 3 is slidably mounted on a horizontal guide rail 2, a lift cylinder unit 4 is mounted in a vertical position on the slider 3, a swing beam 11 is suspended from the piston rod 6 of the lift cylinder unit 4 via a rotary joint 7, and the swing beam 11 is provided with first, second, and third gripping mechanisms 20, 30, 40 which grip one end, the center, and the other end of a constant-velocity joint W1, respectively, the second gripping mechanism 30 designed to be movable by a servo motor 61 and a feed screw 65, with the first griping mechanism 20 designed likewise. The servo motor is rotated depending on the kind of constant-velocity joint, and the feed screw is rotated to move the first and second gripping mechanisms to change their positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a loader device for a constant velocity joint.

[0002]

2. Description of the Related Art The present applicant has previously filed Japanese Patent Application Laid-Open No. 2-76649.
Japanese Unexamined Patent Application Publication No. 2004-331, "Drive shaft boot fixing device and drive shaft positioning device used therein" has been proposed.
The outline of this device will be described. FIG. 9 is an overall view of the constant velocity joint, and is a reprint (but reassigned the reference numeral) of FIG. 15 of the above publication. Constant velocity joint 100
Is a bar field type constant velocity ball joint 102 at one end of a relatively long intermediate shaft 101, and a damper weight 1 at the center.
15, Triport type constant velocity ball joint 120 at the other end
It is a flexible shaft equipped with.

Barfield type constant velocity ball joint 1
Reference numeral 02 denotes a ball bearing-shaped ball 1 on the outer ring 104 where the cup portion 105 and the shaft portion 106 are integrally molded.
07 (... indicates a plurality, the same applies hereinafter), a retainer 108 and an inner ring 109 are housed. By attaching one end of the intermediate shaft 101 to the inner ring 109, This is a constant velocity universal joint that can transmit torque even if there is an intersection angle between the shaft portions 106. The balls 107 need to be grease lubricated,
A boot 111 called a bellows type rubber cover is attached in order to prevent grease from leaking and prevent foreign matter from entering from the outside. Reference numerals 112 and 113 are mounting bands.

The damper weight 115 is also attached to the mounting band 11
Attach to the intermediate shaft 101 at 6.

Triport type constant velocity ball joint 120
Is provided with three grooves 124 ... on the inner surface of the outer ring 121 where the cup portion 122 and the shaft portion 123 are integrally molded,
On the other hand, three legs of the Y-shaped member 125 (only one leg is shown in the figure).
A roller bearing 126 is attached to each of the two, and the roller bearing 126 is slidably fitted in the groove 124. By attaching one end of the intermediate shaft 101 to the Y-shaped member 125, Is a shaft joint that is movable in the axial direction. 127 is boots, 12
Reference numerals 8 and 129 are mounting bands.

FIG. 10 is an explanatory view of a conventional boot attachment line, which summarizes the operation of the above publication. Arrow: The constant velocity joint 100A (however, the boot is not completely attached and the band is not wound yet) placed on the work receiver 131 at the rear end of the conveyor 130 is lifted by the first loader device 132. Arrow: The first loader device 132 is laterally moved, and the constant velocity joint 100A is placed on the positioning device 133. The positioning of the boot is performed by this positioning device 133.

Arrow: The constant velocity joint 100A in which the boot is positioned is lifted by the second loader device 134. Arrow; 9 constant velocity joint 100A with the suspension
While turning 0 ° horizontally, move horizontally as indicated by the arrow. Arrow: The constant velocity joint 100A is lowered and placed on the transfer jig 135.

Arrow: Transfer jig 135, horizontal rail 1
Move a fixed distance along 36. The arrow indicates the transfer jig 135 after the movement. Positioning is performed by a positioning device (not shown) at the 1st station, and the constant velocity joint 100A is raised to a position suitable for band winding and spot laser welding, and the No. The band 112 is wound around the large-diameter portion of the second joint of the boot by the one-band winding device 137, and then spot welding is performed. The operation of the "positioning device" not shown is as follows. Two
No. The same applies to the five stations.

Similarly, No. 2 band winding device 1
38 band 113 to the small diameter part of the second joint of the boot
Wrap. No. A band 129 is wound around the small diameter portion of the first joint of the boot with the three-band winding device 139. No. The 4-band winding device 140 winds the band 128 around the large diameter portion of the first joint of the boot. N
o. The 5-band winding device 141 winds the band 116 around the damper weight.

Next, in FIG. 1 of the above publication, the constant velocity joint is picked up from the conveying jig (2) by the payout device (9). The empty conveyor jig (2) is returned to the entrance side by the return conveyor (11). For convenience, the payout device (9) will be referred to as a third loader device (9).
The loader device (9) runs on the guide rail (1a),
The constant velocity joint is transferred to the payout conveyor (10). Through the above steps, the constant velocity joint 100A in which the boot is temporarily attached in an incorrect state becomes the constant velocity joint 100 in which the boot is set in the correct position and the front and rear bands are wound.

By the way, as indicated by an imaginary line in FIG. 7 of the above publication, the second loader device (18) is provided with three clampers (18e), which hold the constant velocity joint. According to the detailed description, these three clampers (18
e) is mounted so that its position can be adjusted. Other first
The same applies to the loader (16) and the third loader device (9). It can be presumed that these position setting changes are not performed frequently, but are performed manually as needed. This is because the detailed mechanism and operation have not been described.

[0012]

This is troublesome because it is necessary to manually switch each model in order to support model switching. That is, the above-mentioned technique is suitable for a device whose frequency of model change is small, and cannot be said to be a technique suitable for various types of production in recent years. On the other hand, the number of models has increased in recent mixed production,
Moreover, the frequency of switching has increased, and the above-mentioned technology cannot cope with this. Therefore, an object of the present invention is to provide a loader device that can quickly change settings without relying on human labor.

[0013]

In order to achieve the above object, the first aspect of the present invention is to mount a slider slidably on a horizontal guide rail, and vertically mount an elevator cylinder unit on the slider. A swivel beam is suspended on a piston rod of the unit via a rotary joint so that the swivel beam can be horizontally swiveled, and the swivel beam is provided with first, second, and third gripping mechanisms for gripping one end, center, and the other end of the constant velocity joint The first gripping mechanism and the second gripping mechanism are movable by a servomotor and a feed screw, respectively.

The servo motor is rotated in accordance with the type of constant velocity joint and the feed screw is rotated to move the first gripping mechanism and the second gripping mechanism, respectively, to change the position. Since remote operation and automatic operation are possible, setting can be changed quickly without relying on human hands, and work efficiency is improved.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of reference numerals. FIG. 1 is an overall view of a loader device for a constant velocity joint according to the present invention. Constant velocity joint loader device 1
Is a slider 3 that moves along a horizontal guide rail 2.
And a lifting cylinder unit 4 mounted downward on the slider 3, and a constant velocity joint holding jig 10 mounted on a piston rod 6 of the lifting cylinder unit 4 via a rotary joint 7. Reference numerals 8 and 8 are guide rods.
By the action of the lifting cylinder unit 4, the constant velocity joint gripping jig 10 moves up and down as a whole, and by the action of the rotary joint 7, it horizontally turns about 90 °.

The structure and operation of the constant velocity joint holding jig 10 will be described in detail below. FIG. 2 is a front view of a constant velocity joint gripping jig according to the present invention. The constant velocity joint gripping jig 10 can be horizontally moved to a swivel beam 11 and one end (right end in the figure) and the center of the swivel beam 11. First installed
The gripping mechanism 20 and the second gripping mechanism 30, and the swivel beam 11
Of the third gripping mechanism 40 fixed to the other end of the first and second gripping mechanisms 20, 30 for driving the first and second gripping mechanisms 20, 30.
0,60.

FIG. 3 is a view (plan view of the constant velocity joint gripping jig) of FIG. 2, and the first moving mechanism 50 includes a servo motor 51, a pulley 52, a belt 53, and a pulley (not shown, not shown). 4), and a feed screw 55. 56 is a screw receiving block. The second moving mechanism 60 also includes a servo motor 61, a pulley 62, a belt 63, and a pulley (not shown in FIG.
), The feed screw 65 is provided, and the rotation of the feed screw 65 serves to move the second gripping mechanism 30. 66 is a screw receiving block.

FIG. 4 is a view taken in the direction of arrow 4 in FIG. 3, showing the engagement relationship between the first slider 21 of the first gripping mechanism 20 and the feed screw 55, and the rotation of the feed screw 55 moves the first gripping mechanism 20. To act. 56 is a screw receiving block and 54 is a pulley.

FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2, and includes a pulley 52, a belt 53, a pulley 54 and a second drive mechanism 50.
The configurations of the pulley 62, the belt 63, and the pulley 64 of the drive mechanism 60 are shown. Then, the first gripping mechanism 20 uses the swivel beam 1
1. A first slider 21 that slides while being held by rails 12 and 12 laid on the lower surface of 1, a pair of plates 22 and 22 that hang down from the first slider 21, and a plate that horizontally hangs on these plates 22 and 22. Guide rods 23 and 2 passed
3, brackets 24L and 24R movably attached to these guide rods 23 and 23, and gripping claws 25L attached to the lower ends of these brackets 24L and 24R, respectively.
25R, racks 26L and 26R attached to the brackets 24L and 24R, and these racks 26L and 2R, respectively.
The pinion 27 is engaged with the 6R at the same time, and the grip cylinder 28 for pushing and pulling the one bracket 24L.
The pinion 27 is rotatably attached to the first slider 21 side.

The operation of the first gripping mechanism 20 will be described first.
When the gripping cylinder 28 is operated to retract the pinton rod 28a, the left bracket 24L is pulled and the rack 26L is moved at the same time. This rack 26L moves the other rack 26R in the opposite direction via the pinion 27. Therefore, when the piston rod 28a is retracted, the left and right gripping claws 25L and 25R are opened, and when the piston rod 28a is moved forward, the left and right gripping claws 25L and 25R are closed to grip the work.

FIG. 6 is a sectional view taken along line 6-6 of FIG.
Similar to the first gripping mechanism 20, the gripping mechanism 30 includes a second slider 31 that slides while being held by rails 12 and 12 laid on the lower surface of the revolving beam 11, and two sheets hanging from the second slider 31. Plates 32, 32, guide rods 33, 33 laid horizontally on these plates 32, 32, brackets 34L, 34R movably attached to these guide rods 33, 33, and these brackets 34L, Grasping claws 35L and 35R attached to the lower ends of 34R, racks 36L and 36R attached to the brackets 34L and 34R, and these racks 3
The pinion 37 engages with the 6L and 36R simultaneously, and the grip cylinder 38 pushes and pulls the one bracket 34L. The operation of the second gripping mechanism 30 is the same as that of the first gripping mechanism 20, and the description thereof will be omitted.

FIG. 7 is a view taken in the direction of arrow 7 in FIG. 2, and the third gripping mechanism 40 has two plates 42, 42 hanging from the lower surface of the swivel beam 11 and horizontally hung on these plates 42, 42. The passed guide rods 43, 43 and brackets 44, 44 movably attached to these guide rods 43, 43 (in this figure, the left and right are opposite to the first and second gripping mechanisms, so L and R are not attached. No.) and gripping claws 45, 45 attached to the lower ends of these brackets 44, 44, respectively.
And the rack 4 attached to the brackets 44, 44, respectively.
6, 46, a pinion 47 that meshes with these racks 46, 46 at the same time, and a gripping cylinder 48 that pushes and pulls one of the brackets 46. This third gripping mechanism 40
The operation of is basically the same as that of the first gripping mechanism 20, and therefore its explanation is omitted.

The operation of the constant velocity joint holding jig 10 of the loader device having the above structure will be described with reference to FIGS. 2, 3 and 8. FIG. 2 shows the positions of the first and second gripping mechanisms 20 and 30 for gripping the long constant velocity joint W1 shown by the imaginary line. Actually, the constant velocity joint W
When 1 is gripped, the detection rod 71 attached to the first gripping mechanism 20 is pushed up by the boot W3. By switching the work detection switch 72 with the detection rod 71 pushed up, it is possible to confirm whether or not the constant velocity joint W1 is gripped. Further, the one above the work detection switch 72 is a sensor 73 for detecting an abnormal approach of the second gripping mechanism 30, and this plate 74 is provided when the stopper plate 74 attached to the second gripping mechanism 30 approaches abnormally. To detect.

When the setting of the work is changed so that the constant constant velocity joint can be accommodated, the first moving mechanism 50 and the second moving mechanism 60 are operated in FIG. The feed screw 65 is rotated. FIG. 8 is an operation diagram of the constant velocity joint holding jig according to the present invention.
The figure after moving the 1st holding mechanism 20 and the 2nd holding mechanism 30 to a predetermined position is shown. That is, the feed screws 55 and 65
(55 is not shown because it is deep) is precisely the first and second gripping mechanism 2
Since 0 and 30 can be positioned, the first and second gripping mechanisms 20 and 30 can be moved to desired positions by remote control at any time.

Although the feed screw is driven by the servo motor via the pulley, the belt and the pulley in this embodiment, the feed screw may be directly driven by the servo motor to omit the pulley, the belt and the pulley.

[0026]

The present invention has the following effects due to the above configuration. According to a first aspect of the present invention, a slider is slidably mounted on a horizontal guide rail, a lifting cylinder unit is vertically mounted on the slider, and a swing beam is horizontally mounted on a piston rod of the lifting cylinder unit via a rotary joint. Suspension, one end of the constant velocity joint to this swivel beam,
It is characterized in that first, second, and third gripping mechanisms for gripping the center and the other end are respectively provided, and the first gripping mechanism and the second gripping mechanism are movable by a servomotor and a feed screw, respectively. The servo motor is rotated according to the type of the constant velocity joint, the feed screw is rotated, and the first gripping mechanism and the second gripping mechanism are moved to change the positions. Since remote operation and automatic operation are possible, setting can be changed quickly without relying on human hands, and work efficiency is improved.

[Brief description of the drawings]

FIG. 1 is an overall view of a loader device for a constant velocity joint according to the present invention.

FIG. 2 is a front view of a constant velocity joint gripping jig according to the present invention.

FIG. 3 is a view from the arrow 3 in FIG. 2 (plan view of a constant velocity joint holding jig).

FIG. 4 is a view taken in the direction of arrow 4 in FIG. 3;

FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 2;

FIG. 7 is a view on arrow 7 of FIG.

FIG. 8 is an operation diagram of a constant velocity joint gripping jig according to the present invention.

FIG. 9: Overall view of constant velocity joint

FIG. 10 is an explanatory view of a conventional boot attachment line.

[Explanation of symbols]

1 ... Loader device, 2 ... Guide rail, 3 ... Slider, 4
... lift cylinder unit, 6 ... piston rod, 7 ... rotary joint, 8 ... guide rod, 10 ... constant velocity joint gripping jig, 11 ... swivel beam, 12 ... rail, 20 ... first gripping mechanism, 25L, 25R, 35L , 35R, 45 ... Gripping claws, 30 ... Second gripping mechanism, 40 ... Third gripping mechanism, 51,
61 ... Servo motor, 55, 65 ... Feed screw, W1 ... Long constant velocity joint, W2 ... Short constant velocity joint.

Claims (1)

[Claims] 1. A slider is slidably mounted on a horizontal guide rail, an elevating cylinder unit is vertically mounted on the slider, and a swirling beam is horizontally slidable on a piston rod of the elevating cylinder unit via a rotary joint. The first, second, and third gripping mechanisms for suspending and gripping one end, center, and the other end of the constant velocity joint are respectively provided on this swivel beam, and the first gripping mechanism and the second gripping mechanism are provided by a servomotor and a feed screw. A loader device for a constant velocity joint, wherein each loader device is movable.