JP2001334424A - Fixing band tightening device - Google Patents

Abstract

(57) [Summary] [Problem] Even if a resin boot is deformed, a fixing band can be smoothly mounted without contacting a bellows portion, and a large diameter of the resin boot can be achieved. It is an object of the present invention to provide a fixing band tightening device capable of securely mounting a small-diameter annular mounting portion at a predetermined predetermined position. A large-diameter side and a small-diameter side end positioning mechanism for positioning a large-diameter and a small-diameter annular mounting portion of a resin boot mounted on a constant velocity joint to predetermined positions, respectively, and a drive shaft. The bellows portion 3 of the resin boot 18 adjacent to the attached small-diameter annular mounting portion.
And a bellows part pressing mechanism 37 for pressing the bellows 5 toward the large-diameter annular mounting part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing band fastening device capable of fastening a fixing band for fixing a boot mounted on a constant velocity joint, for example.

[0002]

2. Description of the Related Art Conventionally, in a driving force transmitting portion of a vehicle such as an automobile, a constant velocity joint has been used to transmit the rotational force of a driving shaft to each axle via a driven shaft. A bellows-shaped boot is attached to the constant velocity joint, and the boot ensures liquid tightness of the lubricating oil sealed in the outer cup and prevents dust, water, and the like from entering the outer cup. Perform functions.

The boot has a bellows-like bellows portion, a large-diameter annular mounting portion which is integrally formed on both ends of the bellows portion and is mounted on the outer peripheral surface of the outer cup, and is mounted on the outer peripheral surface of a driven-side shaft. And a small-diameter annular mounting portion. In the large-diameter annular mounting portion and the small-diameter annular mounting portion,
The fixing bands for the large diameter and the small diameter are tightened, respectively.

[0004] This type of boot is usually formed of a rubber material, but it is difficult to meet recent demands for high-speed durability and durability against temperature. In many cases, boots using a synthetic resin material have been adopted. This resin boot has higher rigidity than the rubber boot and hardly bends.

Japanese Patent Application Laid-Open No. Hei 7-251336 discloses a technical idea of automatically attaching the fixing band by mechanically tightening the fixing band. In the band fixing device disclosed in Japanese Patent Application Laid-Open No. 7-251336, an axial positioning mechanism and a circumferential temporary positioning mechanism are provided, and the fixing band temporarily positioned above the boot by the circumferential temporary positioning mechanism is provided. A method is employed in which the boot is fixed to the drive shaft by compressing and deforming the protruding portion by a claw mechanism and reducing the diameter of the fixing band.

That is, in the band fixing device, the protrusion of the fixing band is detected by the photoelectric sensor, and the driving of the motor is stopped based on the output of the photoelectric sensor. Tentative positioning in the circumferential direction so as to be on the upper part, and the protrusion is squeezed and deformed via a claw mechanism.

[0007]

By the way, resin boots are manufactured by blow molding or injection molding, and after manufacturing, a plurality of resin boots are accommodated in a bucket and transported. The hollow portion of the loaded resin boot may be crushed and the bellows of the resin boot may be deformed. this is,
Since sufficient cooling time was not spent at the time of resin molding of the resin boot, it is presumed that a load is applied to the bellows portion by stacking a plurality of resin boots to deform the bellows portion.

When the fixing band is attached to the deformed resin boot using the band fixing device according to the prior art, the projecting portion of the fixing band is sandwiched as shown in FIG. There is an inconvenience that the claw mechanism approaches when contacting and comes into contact with the deformed portion of the bellows portion of the resin boot to damage the bellows portion. Further, when the claw mechanism comes into contact with the bellows portion, the advancing / retreating operation of the claw mechanism is hindered, which may cause a trouble such as stopping the operation of the band fixing device.

Furthermore, a large-diameter annular mounting portion of a resin boot is mounted on the outer peripheral surface of the outer cup together with the loosely fitted large-diameter fixing band, and when the large-diameter fixing band is tightened, If the large-diameter annular mounting portion is attached to the outer peripheral surface of the outer cup while being displaced from the regular position, there is a disadvantage that the large-diameter annular mounting portion is fixed by the fixing band in a displaced state. .
Similarly, there is an inconvenience that the small-diameter annular mounting portion is fixed by the fixing band in a state of being displaced.

SUMMARY OF THE INVENTION The present invention has been made to overcome all of the various disadvantages described above. Even when the resin boot is deformed, the fixing band can be smoothly moved without contacting the bellows. It is an object of the present invention to provide a fixing band tightening device that can be mounted and that can securely mount a large-diameter and a small-diameter annular mounting portion of a resin boot to a predetermined predetermined position.

[0011]

In order to achieve the above object, the present invention provides a method for mounting a large-diameter annular mounting portion of a resin boot formed in a hollow bellows shape on a cup portion of a constant velocity joint. The small-diameter annular mounting portion of the resin boot is attached to the shaft portion of the inner member, and the protrusions of the annular fixing bands loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion are pressed and tightened. With this, in the fixing band tightening device for fixing the resin boot to the constant velocity joint, both ends of the constant velocity joint along the axial direction are gripped, and the constant velocity A holding portion that rotatably holds the joint along the circumferential direction, and an annular mounting portion of the resin boot provided on the holding portion and attached to the constant velocity joint, before clamping the protruding portion of the fixing band. In place An end positioning mechanism to be mounted and a bellows portion of a resin boot close to the small-diameter annular mounting portion provided on the holding portion and mounted on the shaft portion of the inner member of the constant velocity joint, and projecting portions of the fixing band. And a bellows-part pressing mechanism that presses toward the large-diameter annular mounting part side before clamping.

In this case, one of the end positioning mechanism and the bellows pressing mechanism may be selectively provided.

The end positioning mechanism includes a large-diameter end positioning mechanism for positioning a large-diameter annular mounting portion of the resin boot mounted on the cup portion of the constant velocity joint at a predetermined position;
And a small-diameter end positioning mechanism for positioning a small-diameter annular mounting portion of the resin boot mounted on the shaft of the inner member of the constant velocity joint at a predetermined position.

The large-diameter end positioning mechanism includes an actuator, and a cylindrical collar provided so as to be able to advance and retreat toward a cup portion of the constant velocity joint under a driving action of the actuator. The large-diameter annular mounting portion is positioned at a predetermined position by one end abutting on the large-diameter annular mounting portion provisionally positioned on the cup portion.
Preferably, an annular member is externally fitted to the collar, and the collar and the constant velocity joint are integrally rotatably provided via a pair of rollers engaging with the annular member. Further, it is preferable that the collar surrounds a holding block of a chuck mechanism for holding a cup portion of the constant velocity joint, and is provided so as to be able to advance and retreat along the axis of the holding block.

The small-diameter end positioning mechanism includes first and second actuators, a chuck member provided to be displaceable in a substantially vertical direction and a substantially horizontal direction under the action of the first and second actuators, A set of support members provided so as to be able to approach or separate under the driving action of the chuck member, a support block provided on the set of support members, and rotatably supporting a shaft of an inner member; An arc-shaped projection provided on the support block and protruding by a predetermined length along the axial direction of the shaft, wherein an end of the arc-shaped projection abuts a temporarily positioned small-diameter annular mounting portion. Thereby, the small-diameter annular mounting portion is suitably positioned at a predetermined position.

The bellows pressing mechanism includes an actuator, and a pressing plate provided to be able to advance and retreat from a direction inclined at a predetermined angle with respect to the axis of the shaft of the inner member under the driving action of the actuator. The deformed portion of the bellows portion is corrected by the flat portion of the pressing plate entering the boundary between the small-diameter annular mounting portion and the bellows portion and pressing the bellows portion toward the large-diameter annular mounting portion. The actuator may be connected via a mounting member to a column that rotatably supports the drive shaft, which is the shaft of the inner member, and may be disposed so as to be inclined at a predetermined angle with respect to the axis of the drive shaft.

At this time, it is preferable that the end positioning mechanism and the bellows pressing mechanism are provided so as to operate substantially simultaneously.

According to the present invention, by providing the end positioning mechanism, the large-diameter side and / or the small-diameter side annular mounting portion is positioned at a predetermined position with respect to the cup portion of the constant velocity joint. At the large diameter side and / or
Alternatively, the fixing band is tightened against the small-diameter annular mounting portion.

Further, according to the present invention, by providing the bellows pressing mechanism, when the fixing band is tightened to the small-diameter annular mounting portion, the deformation of the bellows is corrected so that the projecting portion of the fixing band smoothly. Can be clamped.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a fixing band tightening device according to the present invention will be described below in detail with reference to the accompanying drawings.

In FIG. 1 and FIG.
1 shows a fixing band fastening device according to the present embodiment.
As the workpiece, a drive shaft 16 having a barfield type constant velocity joint 12 connected to one end and a tripod type constant velocity joint 14 connected to the other end is used. A resin boot 18 is mounted on the joint 12, and a rubber boot 2 is mounted on the tripod-type constant velocity joint 14.
0 is attached (see FIG. 25).

The fixing band tightening device 10 is disposed on a base 22 having a substantially T-shape and holds a work rotatably under the driving action of a rotary drive source 24;
A stopper portion 32 disposed in a horizontal direction substantially horizontal to the holding portion 26 and positioning the projecting portions 30 of the fixing bands 28a and 28b in a substantially horizontal state;
And a band tightening portion 34 for clamping the protruding portions 30 of the fixing bands 28a, 28b positioned by the above to tighten the fixing bands 28a, 28b.

As shown in FIG. 3, the holding portion 26 is fixed on first plates 36a and 36b, and holds a shaft portion of the bar-field type constant velocity joint 12; A second holding mechanism 42 that is separated from the first holding mechanism 38 by a predetermined distance and holds the shaft of the tripod-type constant velocity joint 14, and a bellows portion 35 of the resin boot 18 that is provided on the first holding mechanism 38 side. The bellows pressing mechanism 37 (see FIG. 6) for pressing the deformed portion, and the large-diameter annular mounting portion and the small-diameter annular mounting portion of the resin boot 18 that are provided on the first holding mechanism 38 side are respectively positioned at predetermined positions. And an end positioning mechanism 39 that performs the operation.

The end positioning mechanism 39 is a large-diameter end positioning mechanism 39 for positioning the large-diameter annular mounting portion of the resin boot 18 at a predetermined position on the outer peripheral surface of the cup portion 83.
a, and a small-diameter end positioning mechanism 39b for positioning the small-diameter annular mounting portion of the resin boot 18 at a predetermined position on the outer peripheral surface of the drive shaft 16.

The first holding mechanism 38, as shown in FIG.
Through the first plate 36 along the arrow A or B direction
It is provided so as to be displaced integrally with a. Further, as shown in FIG. 5, the second holding mechanism 42 has an arrow A through a linear guide 45 mounted on the second plate 40.
Alternatively, it is provided so as to be displaceable in the B direction.

The first holding mechanism 38 and the second holding mechanism 42 are disposed coaxially and opposed to each other, and have substantially the same configuration except for the bellows pressing mechanism 37 and the end positioning mechanism 39. Therefore, the first holding mechanism 38 will be described in detail, and the components of the second holding mechanism 42 corresponding to the first holding mechanism 38 will be assigned the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 4, the first holding mechanism 38 has a chuck mechanism 48 connected to a drive shaft of the rotary drive source 24 via a coupling member 46. The mechanism 48 is rotatably supported in the first holder 52 and the second holder 54 via a plurality of bearing members 50a to 50d. The first holder 52 has a fluid pressure supply port 59 for supplying a pressure fluid through a communication passage 56 communicating with the chuck mechanism 48.

The chuck mechanism 48 includes the coupling member 4.
6, a cylinder tube 58 rotatably supported in a second holder 54, a piston 62 slidably provided along a cylinder chamber 60 communicating with the communication passage 56, and a piston 62 And a cup member 68 that is displaced integrally with the piston 62 by being connected to the piston 62 via a shaft 66.

Further, the chuck mechanism 48 engages with the opening of the cup member 68 to thereby form a set of pins 70.
a and 70b as fulcrum, one end of which is provided to be able to approach or separate freely, and one end of the pair of arms 72a and 72b is axially attached to one end of the pair of arms 72a and 72b through a long hole 74; And a pair of holding blocks 78a and 78b in which a concave portion 76 for clamping the shaft portion of the outer cup is formed. A spring member 8 is provided between the pair of holding blocks 78a and 78b to urge the pair of holding blocks 78a and 78b away from each other.
0 is interposed.

In this case, under the action of the pressurized fluid introduced from the fluid pressure supply port 59 into the cylinder chamber 60 via the communication passage 56, the piston 6 is pressed against the elastic force of the spring member 64.
2 and the cup member 68 are integrally displaced in the direction of arrow B. At this time, a pair of arms 7 is provided at the opening of the cup member 68.
2a and 72b are engaged, and one end of the pair of arms 72a and 72b is displaced in a direction approaching each other with the pins 70a and 70b as fulcrums under the engagement. As a result, the pair of holding blocks 78a, 78b pivotally attached to one ends of the pair of arms 72a, 72b approach each other against the elastic force of the spring member 80, and the constant velocity joint 12 Is held.

When the constant-velocity joint 12 is detached by releasing the holding state of the shaft 49, the fluid pressure supply port 59 is communicated with the atmosphere under the switching action of a switching valve (not shown) to allow the inside of the cylinder chamber 60 to be opened. By reducing the pressure, the piston 62 and the cup member 68 are displaced in the opposite direction (the direction of the arrow A) by the elastic force of the spring member 64. Therefore, the pressing force on the pair of arms 72 a and 72 b by the opening of the cup member 68 is released, and the pair of holding blocks 78 a and
78b are displaced away from each other.

As shown in FIG. 7, the large-diameter-side end positioning mechanism 39a includes a cylinder 67 fixed to one side surface of the second holder 54 and a substantially horizontal direction driven by the cylinder 67. A set of displaced piston rods 69a,
69b and the piston rod 6 via the plate 71.
9a, 69b, a pair of rollers 77a, 77b rotatably supported by arms 75a, 75b of the displacement member 73, and a pair of rollers 77a, 77b. And a substantially cylindrical collar 81 in which an annular member 79 is fitted.

The collar 81 is formed in a cylindrical shape having a hole having substantially the same diameter as the diameter of the cup portion 83 of the constant velocity joint 12, and is formed under the engagement of the annular member 79 with a pair of rollers 77a, 77b. In addition, it is provided rotatably about the axis of the shaft portion 49 of the constant velocity joint 12 as a rotation center.

Further, a pair of holding blocks 78a, 78
A set of guide rails (not shown) that face each other and extend along the axial direction is mounted on the outer peripheral surface of the cylinder tube 58 surrounding the b. It is provided so as to be displaceable along the direction of arrow A or B under operation.

Accordingly, the collar 81 is displaced in the direction of arrow B under the driving action of the cylinder 67,
As shown in FIG. 5, one end 81a of the collar 81 abuts the large-diameter annular mounting portion of the resin boot 18 around the outer peripheral surface of the cup portion 83, thereby connecting the large-diameter annular mounting portion to the cup portion 83. The constant-velocity joint 12 is rotated while the large-diameter annular mounting portion is positioned at the predetermined position on the outer peripheral surface while the state where the large-diameter annular mounting portion is positioned by the collar 81 is tightened.

The small-diameter end positioning mechanism 39b is shown in FIG.
As shown in FIGS. 3, 6, 9 and 10, the first cylinder 87 fixed on the plate 85 and the first cylinder 87
A first connecting plate 91 connected to a piston rod 89 of a cylinder 87; and a first connecting plate 91 connected to the first connecting plate 91 to be displaced along a substantially horizontal direction (the direction of arrow A or B) under the driving action of the first cylinder 87. A second cylinder 93 that is freely provided, a second connection plate 97 that is connected to a piston rod 95 of the second cylinder 93, and a second cylinder 93 that is connected to the second connection plate 97. And a chuck member 99 provided so as to be displaceable along a substantially vertical direction (the direction of arrow E or F).

As shown in FIG. 10, the chuck member 99 has a pair of support members 4 which approach or move away from each other in the direction of the arrow under the driving action of the chuck member 99.
7a, 47b are provided, and the pair of support members 47a,
47b are provided with rollers 101a to 1 rotatably mounted on the shaft.
Four support blocks 103a to 103d that rotatably support the outer peripheral surface of the drive shaft 16 via 01d are provided. A pin member 107 abuts on the protrusion 105 of each of the support blocks 103a to 103d, and the pin member 107 is provided so as to be engaged with one end of a spring member 109 mounted in the hole. The spring member 109
Are for absorbing the impact given to the support blocks 103a to 103d. The reference numeral 111
Indicates a stopper that locks the support blocks 103a to 103d.

The support blocks 103a to 103d are formed with arc-shaped projections 113a to 113d which are formed in a curved shape in a vertical cross section and project by a predetermined length along the axial direction of the drive shaft 16. Projection 1
On the inner peripheral surfaces of 13a to 113d, a first arc surface 125 and a second arc surface 127 having different curvature radii are formed in order to correspond to various drive shafts 16 having different diameters.

For example, when the diameter of the drive shaft 16 is the largest, the first circular surfaces 125 of the support blocks 103a to 103d engage with the outer peripheral surface of the drive shaft 16 (see the solid line in FIG. 10). When the diameter of the drive shaft 16 is the minimum (see a two-dot chain line in FIG. 10),
The support blocks 103a to 103d approach each other and the support block 10
The second arc surfaces 127 of 3a to 103d are provided so as to be engaged with each other.

Accordingly, the first and second cylinders 87, 9
Under the driving action of 3, the support blocks 103a to 103d are bent and displaced along the arrow R in FIG. 9, and at the same time, the chuck member 99 is driven to bring the pair of support members 47a and 47b closer to each other. Arc-shaped projection 113
The drive shaft 16 is rotatably supported by rollers 101a to 101d a to 113d. in this case,
The small-diameter annular mounting portion of the resin boot 18 is regulated by the ends of the four arc-shaped projections 113a to 113d, so that the small-diameter annular mounting portion is positioned at a predetermined position of the drive shaft 16 (FIGS. 6 and 6). 9).

As shown in FIGS. 2, 3 and 6, the bellows pressing mechanism 37 is connected to one supporting member 47b via a mounting member 51, and the axis of the drive shaft 16 as viewed from above. Is movable in the direction of the arrow L or M under the driving action of the cylinder 53 via a connecting member 57 attached to one end of a piston rod 55 and a cylinder 53 arranged at a predetermined angle with respect to A pressing plate 61 provided at the end of the connecting member 5
7 and a guide rod 63 whose other end is provided so as to be freely inserted into the hole of the mounting member 51.

In this case, the bellows pressing mechanism 37 is displaced integrally with one of the support members 47b along the substantially vertical and substantially horizontal directions under the driving action of the first and second cylinders 87 and 93. It is provided in.

The pressing plate 61 is formed so as to be bent in a substantially L-shaped cross section, and the flat surface portion 65 which contacts the bellows portion 35 of the resin boot 18 on the small-diameter annular mounting portion side is larger than the small-diameter annular mounting portion. It is formed in a substantially U-shape having a hole (not shown) (see FIG. 3). The hole of the flat portion 65 is not limited to a substantially U-shape, and may be formed in a substantially V-shape or the like.

The stopper portion 32 includes a first stopper mechanism 82 (see FIG. 11) for positioning the protruding portion 30 of the fixing band 28b mounted on the small-diameter annular mounting portion of the resin boot 18; A second stopper mechanism 84 (see FIG. 12) for positioning the protruding portion 30 of the fixing band 28a attached to the large-diameter annular mounting portion.

As shown in FIG. 11, the first stopper mechanism 82 includes a third plate 86 fixed on the base 22.
And a pair of fittings 88a, 88 on the third plate 86.
b, and is connected to one end of a piston rod 94 of the first cylinder 90 via an L-shaped block 92, and is linearly displaceable under the guidance of a linear guide 96. 4th plate 98 provided in
And The linear guide 96 includes a long guide rail 100 and a guide block 102 that slides along the guide rail 100.

Further, the first stopper mechanism 82 includes a fifth plate 104 connected substantially perpendicularly to one end of the fourth plate 98, and a second cylinder fixed to a side surface of the fifth plate 104. 106 and the second cylinder 10
A pair of substantially parallel shafts 112 connected to one end of the piston rod 108 via a connecting member 110, and a guide hole (not shown) fixed to the fifth plate 104 and through which the set of shafts 112 is inserted. And a block member 114 that guides the set of shafts 112 through the shaft member, and a substantially L-shaped bent member 116 connected to one end of the set of shafts 112 via a screw member.

The bending member 116 is provided with a stopper block 118 suspended substantially vertically, and one end 118a of the stopper block 118 is connected to the protruding portion 30 of the fixing band 28b as described later. The function of positioning the protruding portion 30 in a substantially horizontal state by abutting is performed.

The bending member 116 has one or more tubes 1 connected to an air supply source (not shown).
19a and 119b are held. When the resin boot 18 and the fixing band 28b are integrally rotated under the driving action of the rotary drive source 24, the fixing band 28b attached to the small-diameter annular mounting portion of the resin boot 18 is moved to the resin boot 18 By discharging air toward the rotating fixing band 28b from the outlet 120 of the pipes 119a and 119b, the fixing band 28b attached to the small-diameter annular mounting portion rotates together. Can be prevented.

In this case, the stopper block 118 and the pipes 119a and 119b are provided so as to be displaceable along a substantially horizontal direction (direction of arrow C or D) under the driving action of the first cylinder 90, and 2 cylinders 10
6 are provided so as to be displaceable along the vertical direction (the direction of arrow E or F) under the driving action of No. 6.

A sixth plate 115 extending substantially in the horizontal direction is fixed to the block body 114.
A first sensor 117 for detecting the timing at which the stopper block 118 descends is attached to the plate 115 in a state where the first sensor 117 is inclined by a predetermined angle (see FIG. 11). The first sensor 117 detects the projecting portion of the fixing band 28 b in the rotating state before reaching the substantially horizontal state, and detects the first stopper mechanism 82 based on a detection signal output from the first sensor 117. Is urged to lower the stopper block 118.

One end 118a of the stopper block 118 which contacts the protrusion 30 of the fixing band 28b has
A second sensor 121 for detecting the protruding portion 30 is built in (see FIG. 21). The second sensor 121 is located at a position deviated by a predetermined distance in a substantially horizontal direction from a substantially central portion of one end of the stopper block 118. (See FIG. 22).

The first sensor 117 and the second sensor 1
Numeral 21 is, for example, a distance setting type photoelectric switch, which receives reflected light reflected on a workpiece,
It detects the distance between the first sensor 117 and the second sensor 121 and the workpiece, and outputs an output signal when the distance detected by the first sensor 117 and the second sensor 121 matches a predetermined distance. Is derived.

The second stopper mechanism 84 has substantially the same configuration as the first stopper mechanism 82. As shown in FIG. 12, the protrusion 30 is attached to the stopper block 118 by the elastic force of the spring member 122. The difference is that a holding portion 123 to be pressed against is provided. When the resin boot 18 and the fixing band 28a are integrally rotated under the driving action of the rotary drive source 24, the fixing band 28a attached to the large-diameter annular mounting portion of the resin boot 18 is moved to the resin boot 18a. 18 together with the fixing band 28a under the action of the resilient force of the spring member 122.
, The fixing band 28a attached to the large-diameter annular attachment portion can be prevented from waving.

The band tightening portion 34 is a first tightening mechanism 124 (see FIG. 13) for pressing the projecting portion 30 of the fixing band 28b mounted on the small-diameter annular mounting portion of the resin boot 18.
And a second tightening mechanism 126 (see FIG. 14) for pressing the protruding portion 30 of the fixing band 28a attached to the large-diameter annular mounting portion of the resin boot 18. In this case, the first tightening mechanism 124 and the second tightening mechanism 126 have substantially the same configuration, and the first tightening mechanism 124 will be described in detail below, and corresponds to the first tightening mechanism 124. The components of the second tightening mechanism 126 are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 13, the first tightening mechanism 124 includes a seventh plate 128 fixed on the base 22.
And fixing brackets 130a, 13 on the seventh plate 128.
Ob, a third cylinder 132 fixed to the third cylinder 132 and one end of a piston rod 134 of the third cylinder 132, and an elongate third cylinder 132 that is linearly displaceable under the action of a linear guide 136. 8 plates 138. The linear guide 136 includes a long guide rail 140 and a set of guide blocks 142 slidably provided along the guide rail 140.

Further, the first tightening mechanism 124 is connected to the eighth plate 1 via a pair of fixing fittings 144a and 144b.
38, a fourth cylinder 146 fixedly mounted on the upper surface of the cylinder 38, and a joint means provided with a shaft 150 which is connected to one end of the piston rod 148 of the fourth cylinder 146 and through which the reciprocating operation of the piston rod 148 is transmitted. Fifteen
And a clamping means 153 fixed to the eighth plate 138 and provided with a hole through which one end of the shaft 150 is inserted.

The joint means 152 is fixed on the ninth plate 158 and a guide block 156 and a ninth plate 158 slidably provided along a guide rail 154 fixed to the eighth plate 138. It has a plurality of connecting members 160, a shaft 150 to which the reciprocating operation of the piston rod 148 is transmitted via the plurality of connecting members 160, and a block 162 for stopping the shaft 150 and supporting the shaft 150. . In addition, one end of the shaft 150 has inclined surfaces 164a, 164b facing each other when viewed from the side.
The engagement portion 166 is formed in a substantially thin rectangular shape when viewed from above (see FIG. 15).
Is provided (see FIG. 16).

The pressing means 153 is fixed to the eighth plate 138 and has a housing 170 in which a through hole 168 in which the shaft 150 slides is formed.
A sharp claw 172 is provided at the opening of the housing 170 along the up-down direction, and presses the protruding portion 30 at one end.
a, 172b provided with a pair of clamping pieces 174a, 17
4b. The pair of pressing pieces 174a, 174b
Are, as shown in FIGS. 21 and 22, respectively:
The claw portions 172a and 172b are provided so as to be able to approach or separate from each other with a pin 176 pivotally mounted at a substantially central portion as a fulcrum,
A roller 178 is rotatably mounted on the other end of each of the pressing pieces 174a and 174b. Between a pair of rollers 178,
The engagement portion 166 formed at one end of the shaft 150 is engaged, the shaft 150 is displaced in the direction of arrow D, and the engagement portion 166 is interrupted between a pair of rollers 178, so that The roller 178 is separated, and the claws 172a and 172b approach each other with the pin 176 as a fulcrum. As a result, the claw portions 172a of the pair of pressing pieces 174a, 174b,
The fixing band 28b is provided so as to be tightened by clamping the protruding portion 30 of the fixing band 28b by 172b.

Further, as shown in FIG. 16, the clamping means 153 is provided on the support 1 mounted on the housing 170.
The pressing member 184 supported by the spring 80 and constantly urged along the direction of arrow D by the elastic force of the spring member 182
Having. The pressing member 184 extends in a substantially horizontal direction between a pair of claw portions 172a and 172b that are separated from each other by a predetermined distance, and the protrusion of the fixing band 28b under the action of the elastic force of the spring member 182. 30 has a holding portion 186 that comes into contact with and presses the protruding portion 30. The housing 170
While guiding the pressing member 184 to the step portion,
A plate 190 is provided to protect the resin boot 18 by engaging the tapered portion 188 with the bellows of the resin boot 18.

As shown in FIGS. 13 and 14, pins 194 projecting from the housing 170 to the outside through the elongated holes 192 are provided on the sides of the pair of pressing pieces 174a and 174b, respectively. The set of rollers 178 is constantly urged to abut by the elastic force of a spring member 196 that is fixed and engaged between the set of pins 194.

The fixing band tightening device 10 according to the present embodiment is basically configured as described above. Next, the operation and effect of the device will be described.

A barfield type constant velocity joint 12 connected to one end of the drive shaft 16 is held by a first holding mechanism 38, and a tripod type constant velocity joint connected to the other end of the drive shaft 16. 14 is held by the second holding mechanism 42. in this case,
A resin boot 18 is mounted on the constant velocity joint 12 of the bar field type, and a rubber boot 20 is mounted on the constant velocity joint 14 of the tripod type.

In the previous step, the steel belt 198a, the steel belt 198a, and the small-diameter annular mounting portion of the rubber boot 20 are already attached to the large-diameter annular mounting portion and the small-diameter annular mounting portion.
198b are respectively attached (FIG. 27
reference).

The fixing bands 28a and 28b respectively mounted on the large-diameter annular mounting portion and the small-diameter annular mounting portion of the resin boot 18 are wound in a substantially circular shape, and are formed around the orbiting fixing bands 28a and 28b. A protruding portion 30 protruding outward is formed in a part. One end on the outer peripheral side of the fixing bands 28a and 28b is provided with a plurality of hook-shaped locking claws 200a to 200c for locking holes 202a to 202c.
21 and FIG.
2).

First, the deformed portion of the bellows portion 35 of the resin boot 18 is pressed by the bellows portion pressing mechanism 37, so that the claw portion 1 for pressing the projecting portion 30 of the fixing band 28b is pressed.
A case will be described in which the deformed portion is prevented from contacting 72a and 172b.

After the shaft 49 of the constant velocity joint 12 is gripped by the pair of holding blocks 78a and 78b constituting the chuck mechanism 48, the cylinder 53 is driven to displace the pressing plate 61. The pressing plate 61 includes:
The guide rod 63 is displaced in the direction of the arrow L under the action of the guide rod 63, and the substantially U-shaped flat portion 65 enters the boundary between the small-diameter annular mounting portion and the bellows portion 35 (see FIG. 8).

Therefore, the deformed portion of the bellows portion 35 protruding toward the small-diameter annular mounting portion side is formed by the pressing plate 61.
Accordingly, it is pressed toward the large-diameter annular mounting portion. As a result, even when the bellows portion 35 of the resin boot 18 is deformed, the claws 172a and 172b do not contact the deformed portion of the bellows portion 35, and the fixing band 28b is attached to the small-diameter annular mounting portion. Can be installed.

After attaching the fixing band 28b,
By further driving the cylinder 53, the pressing plate 61 is separated from the bellows portion 35, returns to the initial position, and enters a standby state.

Next, the case where the large-diameter annular mounting portion is positioned at a predetermined position of the cup portion 83 of the constant velocity joint 12 by the large-diameter end positioning mechanism 39a will be described.

After the shaft portion 49 of the constant velocity joint 12 is gripped by the pair of holding blocks 78a and 78b constituting the chuck mechanism 48, the cylinder 67 is driven so that a pair of piston rods 69a and 69b
Displaced in the direction. The set of piston rods 6
Under the displacement action of 9a and 69b, the collar 81 connected to the displacement member 73 is displaced in the direction of arrow B under the guide action of a guide rail (not shown). Approach along the outer peripheral surface of
One end 81a of the collar 81 contacts the end of the large-diameter annular mounting portion of the resin boot 18 (see FIG. 8).

Similarly, the small diameter side end positioning mechanism 39b
A case where the small-diameter annular mounting portion is positioned at a predetermined position of the drive shaft 16 will be described.

Under the driving action of the first and second cylinders 87 and 93, the support blocks 103a to 103d are displaced along the arrow R in FIG. The drive shaft 16 is held by the arc-shaped projections 113a to 113d by displacing the 47b in the approaching direction. in this case,
When the ends of the arc-shaped projections 113a to 113d abut on the small-diameter annular mounting portion of the resin boot 18, the small-diameter annular mounting portion is positioned at a predetermined position on the drive shaft 16.

Accordingly, even when the large-diameter annular mounting portion and the small-diameter annular mounting portion of the resin boot 18 are displaced from predetermined positions, one end 81a of the collar 81 abuts on the large-diameter annular mounting portion. In addition to preventing the positional deviation from the predetermined position, the ends of the arc-shaped projections 113a to 113d of the support blocks 103a to 103d abut against the small-diameter annular mounting portion to eliminate the positional deviation from the predetermined position. The diameter and small-diameter annular mounting portions are each reliably positioned at predetermined positions.

As will be described later, when the constant velocity joint 12 is rotated integrally with the drive shaft 16 under the driving action of the rotary drive source 24, a pair of roller pairs 77a,
By rotating the collar 81 integrally with the cup portion 83 via the annular member 79 engaged with the large-diameter annular member 77b, the large-diameter annular mounting portion is maintained in a state where the large-diameter annular mounting portion is positioned at a predetermined position. The fixing band 28a can be attached to the part.

Similarly, the support blocks 103a to 103d
By rotating the rollers 101a to 101d, the fixing band 28 is fixed to the small-diameter annular mounting portion while maintaining the state where the small-diameter annular mounting portion is positioned and held at a predetermined position.
b can be attached.

In this case, it is preferable that the cylinders 53 and 67 are urged substantially simultaneously to operate the bellows pressing mechanism 37 and the end positioning mechanism 39 almost simultaneously.

Next, the case where the large-diameter fixing band 28a and the small-diameter fixing band 28b loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion of the resin boot 18, respectively, are tightened substantially simultaneously will be described. I do.

First, by driving the rotary drive source 24, the bar-field type constant velocity joint 12 and the tripod type constant velocity joint 14 held coaxially by the first holding mechanism 38 and the second holding mechanism 42. And the drive shaft 16 are integrally rotated. In this case, a pair of fixing bands 28a, 28b
The resin boot 18 is loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion via a slight clearance, respectively, and the resin boot 18 is rotated, so that a pair of fixing bands 28a and 28b are also attached thereto. Rotate. Therefore, the protruding portions 30 of the fixing bands 28a and 28b are in a rotating state about the axis of the drive shaft 16.

Subsequently, the protruding portions 3 of the fixing bands 28a, 28b in the rotating state and before reaching the substantially horizontal state.
0 is detected by the first sensor 117 (see FIG. 19),
Based on the detection signal output from the first sensor 117, the first stopper mechanism 82 and the second stopper mechanism 84 constituting the stopper portion 32 are respectively urged to lower the stopper block 118. Therefore, the resin boot 1
8 of fixing bands 28a and 28b loosely fitted to
0, the one end 118a of the stopper block 118 abuts, and the second sensor 121 incorporated in the one end 118a of the stopper block 118 detects the projecting portion 30, so that the projecting portions 30 of the fixing bands 28a, 28b are detected. Are positioned in a substantially horizontal state (see FIG. 20).

That is, in the initial position shown in FIG. 17, the first stopper mechanism 82 and the second stopper mechanism 84
After the stopper block 118 is displaced by a predetermined distance along the substantially horizontal direction (the direction of arrow D) under the driving action of the first cylinder 90, based on a detection signal output from the first sensor 117, By lowering the stopper block 118 (in the direction of arrow F) under the driving action of the second cylinder 106, the stopper block 118 is brought into contact with the projecting portion 30 which is rotating together with the resin boot 18 (see FIG. 18). . When the stopper block 118 comes into contact with the protrusions 30 of the fixing bands 28a and 28b, the protrusions 30 are positioned in a substantially horizontal direction (lateral direction) of the resin boot 18 respectively.

In this case, even when the protruding portion 30 is positioned at a predetermined position by the stopper block 118, the resin boot 18 and the fixing bands 28a, 28
b, the resin boot 18 and the drive shaft 16 are in a rotating state under the driving action of the rotary drive source 24, and are provided in the first and second stopper mechanisms 82 and 84 as described above. Pipe 119a,
119b and the holding portion 123, the fixing band 28
It is possible to prevent the a and 28b from rotating and waving.

The fact that the protrusion 30 has been positioned at the predetermined position is confirmed by a detection signal from the second sensor 121. If the stopper block 118 does not come into contact with the protrusion 30 of the fixing bands 28a, 28b. That is, when the protruding portion 30 is not positioned at the predetermined position, the stopper block 118 rises under the driving action of the second cylinder 106 and enters a standby state at the initial position.

In this embodiment, the fixing band 2
A second sensor 121 is built in one end 118a of a stopper block 118 that abuts on the protruding portion 30 of 8a, 28b,
The second sensor 121 is disposed at a position deviated by a predetermined distance in a substantially horizontal direction from a substantially central portion of the one end portion 118a of the stopper block 118 via a concave portion (see FIG. 22). In addition, as shown in FIG.
7 and the second sensor 121 project from the flat portions 203 of the fixing bands 28a and 28b, respectively.
Are set so as to sense the pinpoint H and the pinpoint I of the wall surface 205 that is continuous with the point. The pin point H is a detection point for detecting the timing when the stopper block 118 descends, the pin point I is a detection point for detecting the projecting portion 30 abutting on the stopper block 118, and the pin points H and I are Each of the fixing bands 28a and 28b is disposed substantially in parallel at a position deviated from the center of the fixing band 28a by a predetermined distance in a substantially horizontal direction.

Therefore, the first sensor 117 and the second
The sensor 121 includes a fixing band 2 wound in a substantially circular shape.
The step 204 (see FIG. 21) formed by one end of the outer periphery of each of the fixing bands 28a, 28b is not detected, and the locking holes 202a-20 of the fixing bands 28a, 28b are not detected.
The hook-shaped locking claws 200a to 200c locked to the 2c are not detected.

In other words, the pinpoint H and the pinpoint I are obtained by displacing the detection points sensed by the first sensor 117 and the second sensor 121 by a predetermined distance from the center of the fixing bands 28a, 28b in a substantially horizontal direction. , The first sensor 117 and the second sensor 121 detect the stepped portion 204 and the hook-shaped engaging claws 200a to 200c formed at the outer peripheral end of the fixing bands 28a and 28b. Therefore, only the protruding portions 30 of the fixing bands 28a and 28b can be reliably detected. Therefore, it is possible to prevent the step portion 204 and the hook-shaped locking claws 200a to 200c from being erroneously detected as the protruding portions 30, and to improve the detection accuracy.

Next, in a state where the protruding portions 30 of the fixing bands 28a and 28b are positioned, the first tightening mechanism 124 and the second tightening mechanism 126 constituting the band tightening section 34 are urged, respectively. , The protruding portion 30 is
86 and a pair of claws 172a, 1
The fixing bands 28a, 28
b is tightened.

That is, the third cylinder 132 is driven to drive the eighth plate 1 under the guiding action of the linear guide 136.
38 is displaced in the direction of arrow D, the joint means 152 and the pressing means 153 are integrally displaced together with the eighth plate 138, and a pair of claw portions 172 are formed.
The holding portion 186 provided between the fixing bands 28a and 172b comes into contact with the protruding portions 30 of the fixing bands 28a and 28b (see FIG. 23). After the protruding portions 30 of the fixing bands 28a and 28b are held in a substantially horizontal state by the holding portion 186, the rotation drive source 24 is deactivated to stop the rotation of the resin boot 18 and the drive shaft 16.

The protruding portions 30 of the fixing bands 28a, 28b
In a state where is positioned substantially horizontally by the holding portion 186, the stopper blocks 118 are respectively raised under the driving action of the second cylinder 106, so that the stopper blocks 118 are separated from the protruding portions 30.
By displacing the shaft 150 in the direction of arrow D under the driving action of the fourth cylinder 146, a pair of claws 172a and 172b operate in a direction approaching each other with the pin 176 as a fulcrum, and the protrusion 30 is pinched. (See FIG. 26).

That is, by driving the fourth cylinder 146, the shaft 150 coaxially connected to the piston rod 148 via the joint means 152 is integrally displaced in the direction of arrow D. The shaft 15
The engagement portion 166 formed at one end of the inclined surface 164
a, 164b interrupts the set of rollers 178 to separate the set of rollers 178
The pawls 172a and 172b approach each other with the fulcrum 76 as a fulcrum.
As a result, the claws 17 of the pair of pressing pieces 174a, 174b are formed.
2a, 172b presses the protruding portions 30 of the fixing bands 28a, 28b, so that the fixing bands 28
a and 28b are tightened substantially simultaneously (see FIGS. 24 and 25).

After the fastening operation of the fixing bands 28a and 28b is completed, the fourth cylinder 146 is driven to move the shaft 150 in the opposite direction (the direction of arrow C).
, The state of the pressure applied to the protrusion 30 is released. That is, the engaging portion 16 of the shaft 150
6 are separated from between the pair of rollers 178, and the pair of rollers 178 approach each other by the resilient force of the spring member 196 fixed to the pin 194, so that the pair of claw portions 172a, 172b become It operates in the direction away from each other with the pin 176 as a fulcrum, and the state of being pressed against the protrusion 30 is released.

Further, the eighth plate 138 is displaced in the opposite direction (the direction of arrow D) under the driving action of the third cylinder 132 and the first cylinder 90 is moved.
Then, by driving the second cylinder 106, the first stopper mechanism 82 and the second stopper mechanism 82 return to the initial positions.

In the present embodiment, by providing the bellows pressing mechanism 37, even if the bellows 35 of the resin boot 18 is deformed, the claw 172 is formed at the deformed portion.
a, 172b are not in contact with each other,
b can be smoothly mounted on the small-diameter annular mounting portion close to the bellows portion 35. Accordingly, the bellows 35 of the resin boot 18 is not damaged, and the claws 172a and 172b for pressing the protruding portion 30 of the fixing band 28b.
It does not hinder the forward / backward movement of the vehicle. As a result, troubles such as stopping the operation of the fixing band tightening device 10 are prevented from occurring, and the fixing band 28
b) can be smoothly performed, and the production efficiency can be improved.

In this embodiment, the large-diameter and / or small-diameter annular mounting portions of the resin boot 18 are deviated from predetermined positions by providing the large-diameter and small-diameter end positioning mechanisms 39a and 39b, respectively. Even if it is, the position shift can be corrected and positioned at a predetermined position, and the fixing band 28a can be fixed to the large-diameter and / or small-diameter annular mounting portion while maintaining the positioned state. Since the fixing band 28b is mounted, the fixing bands 28a and 28b provide an effect that the large-diameter and / or small-diameter annular mounting portion is securely tightened to a predetermined position of the cup portion 83 and / or the drive shaft 16.

Further, in the present embodiment, since the first stopper mechanism 82 and the second stopper mechanism 84 hold the protruding portions 30 of the fixing bands 28a and 28b in a substantially horizontal position, the pressure is reduced. The positional relationship is substantially the same as the position where the steel belts 198a and 198b attached to the rubber boots 20 of the report type constant velocity joint 14 are irradiated with a laser beam and welded. As a result,
The layout can be harmonized with an existing device (not shown) to improve versatility. Since there is no need to change the existing production line, it is possible to reduce the production cost in that no new capital investment is required.

Further, in the present embodiment, the first tightening mechanism 124 and the second tightening mechanism
6, the fixing bands 28a and 28b are respectively attached to the large-diameter annular mounting portion and the small-diameter annular mounting portion of the resin boot 18.
Since 28b can be attached almost simultaneously, production efficiency can be improved.

When the resin boot 18 and the fixing bands 28a and 28b are integrally rotated under the driving action of the rotary drive source 24, the fixing boot attached to the large-diameter annular mounting portion of the resin boot 18 is formed. The band 28a becomes wavy,
On the other hand, the fixing band 28b attached to the small-diameter annular mounting portion
There is a problem that rotates around.

However, in this embodiment, the second stopper mechanism 84 on the side of the large-diameter annular mounting portion is provided with the holding portion 123 which presses the protruding portion 30 by the resilience of the spring member 122 so that the waving is achieved. It is possible to prevent the state and the co-rotation from occurring. Further, in the present embodiment, one or a plurality of pipes 119a and 119b connected to an air supply source (not shown) are provided in the first stopper mechanism 82 on the small-diameter annular mounting portion side, and the pipes 119a and 119 are provided.
The fixing band 28 which rotates from the outlet 120 of 9b
a, by discharging air toward 28b,
The occurrence of the waving state and the co-rotation can be prevented.

It is to be noted that pipes 119a and 119b for discharging air are provided in the second stopper mechanism 84 on the large-diameter annular mounting portion side, and the tensile force of the spring member 122 acts on the first stopper mechanism 82 on the small-diameter annular mounting portion side. A holding portion 123 that presses the protruding portion 30 may be provided below. Alternatively, the holding unit 123
And the pipes 119a and 119b may be provided in combination.

Further, in the present embodiment, the detection point sensed by the first sensor 117 and the second sensor 121 is displaced from the center of the fixing bands 28a, 28b by a predetermined distance in the substantially horizontal direction. H and the pin point I, the first sensor 117 and the second sensor 121 form a stepped portion 2 formed at one end on the outer peripheral side of the fixing bands 28a and 28b.
04 and the hook-shaped locking claws 200a to 200c are not detected, and only the protruding portions 30 of the fixing bands 28a and 28b are reliably detected. Therefore, the second sensor 1
21, the protrusions 30 of the fixing bands 28a, 28b
Is detected as a pinpoint, it is possible to prevent the step portion 204 and the hook-shaped locking claws 200a to 200c from being erroneously detected as the protruding portions 30, thereby improving the detection accuracy.

[0100]

According to the present invention, the following effects can be obtained.

In other words, even when the resin boot is deformed, the fixing band can be smoothly mounted without contacting the bellows portion, and the predetermined band positioned with respect to the outer peripheral portion of the outer cup is provided. The large-diameter annular mounting portion of the resin boot can be securely mounted at the position.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fixing band fastening device according to an embodiment of the present invention.

FIG. 2 is a plan view of the fixing band tightening device.

FIG. 3 is a perspective view of a holding portion constituting the fixing band fastening device.

FIG. 4 is a longitudinal sectional view of a first holding mechanism constituting the holding section.

FIG. 5 is a longitudinal sectional view of a second holding mechanism constituting the holding section.

FIG. 6 is a plan view of a bellows portion pressing mechanism constituting the holding unit.

FIG. 7 is a partially cutaway front view of a large-diameter-side end positioning mechanism constituting the holding unit.

FIG. 8 is a partially omitted vertical cross-sectional view showing a state in which a collar constituting the large-diameter-side end positioning mechanism is positioned in contact with a large-diameter annular mounting portion of a resin boot.

9 shows a small-diameter side end positioning mechanism, and is indicated by an arrow T in FIG.
It is the arrow view seen from the direction.

FIG. 10 is a longitudinal sectional view taken along line XX of FIG. 9;

FIG. 11 is a perspective view of a first stopper mechanism constituting a stopper portion.

FIG. 12 is a perspective view of a second stopper mechanism constituting a stopper portion.

FIG. 13 is a perspective view of a first tightening mechanism constituting a band tightening section.

FIG. 14 is a perspective view of a second tightening mechanism constituting the band tightening section.

FIG. 15 is a partial longitudinal sectional view along the axial direction of the first tightening mechanism.

FIG. 16 is a cross-sectional view of the first tightening mechanism along an axial direction.

FIG. 17 is an operation explanatory view when the stopper portion and the band tightening portion are at an initial position.

FIG. 18 is an operation explanatory view showing a state in which a stopper plate constituting the stopper portion is positioned in contact with a protruding portion of a fixing band.

FIG. 19 is an operation explanatory view showing a state in which the protrusion of the fixing band is detected by a sensor built in one end of the stopper block.

FIG. 20 is an operation explanatory view showing a state in which the stopper block is lowered and comes into contact with the protrusion after the protrusion of the fixing band is detected by the sensor.

FIG. 21 is a partial cross-sectional side view in a state where one end of the stopper block is in contact with a protrusion.

FIG. 22 is a partially cutaway front view in a state where one end of the stopper block is in contact with a protrusion.

FIG. 23 is an operation explanatory view showing a state in which the band tightening portion is displaced and the protruding portion of the fixing band is held by the holding portion.

FIG. 24 is a partially enlarged longitudinal sectional view showing a state in which a protruding portion of a fixing band is positioned by a stopper block and held by a holding portion.

FIG. 25 displaces the shaft from the state shown in FIG. 21;
FIG. 6 is a partially enlarged longitudinal sectional view showing a state in which a protrusion of a fixing band is pressed by a claw portion.

FIG. 26 is an operation explanatory view showing a state in which the protruding portion of the fixing band is pressed by the claw portion.

FIG. 27 is a longitudinal sectional view along the axial direction of a drive shaft having a barfield type constant velocity joint connected to one end and a tripod type constant velocity joint connected to the other end.

FIG. 28 is an arrow view of the fixing band as viewed from the direction of arrow G in FIG. 21;

FIG. 29 is a partially sectional front view showing deformation of a bellows portion of a resin boot.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Fixing band fastening device 12, 14 ... Constant velocity joint 16 ... Drive shaft 18 ... Resin boot 20 ... Rubber boot 24 ... Rotation drive source 26, 123, 186 ... Holding part 28a, 28b ...
Fixing band 30 Projecting part 32 Stopper part 34 Band fastening part 35 Bellows part 36a, 36b, 40, 71, 85, 86, 98, 10
4, 115, 128, 138, 158, 190, 210
... Plate 37 ... Bellows pressing mechanism 38, 42 ... Holding mechanism 39, 39a, 39b ... End positioning mechanism 41, 53, 67, 83, 90, 93, 106, 13
2, 146: cylinder 43, 45, 96, 136: linear guide 57, 110, 160: connecting member 61: pressing plate 63: guide rod 64, 80, 109, 122, 182, 196: spring member 65: flat portion 68 ... cup members 70a, 70b, 176, 194 ... pins 73 ... displacement members 75a, 75b ...
Arm 77a, 77b Roller pair 79 Ring member 81 Collar 82, 84 Stopper mechanism 117, 121 Sensor 118 Stopper block 118a One end 119a, 119
b: tubular body 120: outlets 124, 126 ...
Tightening mechanism 150 ... Shaft 152 ... Joint means 153 ... Nipping means 166 ... Engagement parts 172a, 172b ... Claw parts 174a, 174
b: Nipping piece 178: Roller

Claims (13)

[Claims] 1. A large-diameter annular mounting portion of a resin boot formed in a hollow bellows shape is mounted on a cup portion of a constant velocity joint, and a small-diameter annular mounting portion of the resin boot is mounted on a shaft portion of an inner member. A fixing band for fixing the resin boot to the constant velocity joint by pressing and tightening the protrusions of the annular fixing band loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion, respectively. In the fastening device, a holding portion that grips both end portions of the constant velocity joint along the axial direction and holds the constant velocity joint so as to be rotatable along the circumferential direction under the driving action of a rotary drive source, An end positioning mechanism that is provided on the holding portion and positions the annular mounting portion of the resin boot attached to the constant velocity joint at a predetermined position before pressing the protruding portion of the fixing band. Do Titration, with a band clamping device. 2. A large-diameter annular mounting portion of a resin boot formed in a hollow bellows shape is mounted on a cup portion of a constant velocity joint, and a small-diameter annular mounting portion of the resin boot is mounted on a shaft portion of an inner member. A fixing band for fixing the resin boot to the constant velocity joint by pressing and tightening the protrusions of the annular fixing band loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion, respectively. In the fastening device, a holding portion that grips both end portions of the constant velocity joint along the axial direction and holds the constant velocity joint so as to be rotatable along the circumferential direction under the driving action of a rotary drive source, The bellows portion of the resin boot, which is provided on the holding portion and is close to the small-diameter annular mounting portion attached to the shaft portion of the inner member of the constant velocity joint, is used to press the projecting portion of the fixing band into a large-diameter annular mounting portion. Push towards the side Fixing with a band clamping device, characterized in that it comprises a bellows portion pressing mechanism, a to. 3. A large-diameter annular mounting portion of a resin boot formed in a hollow bellows shape is mounted on a cup portion of a constant velocity joint, and a small-diameter annular mounting portion of the resin boot is mounted on a shaft portion of an inner member. A fixing band for fixing the resin boot to the constant velocity joint by pressing and tightening the protrusions of the annular fixing band loosely fitted to the large-diameter annular mounting portion and the small-diameter annular mounting portion, respectively. In the fastening device, a holding portion that grips both end portions of the constant velocity joint along the axial direction and holds the constant velocity joint so as to be rotatable along the circumferential direction under the driving action of a rotary drive source, An end positioning mechanism that is provided on the holding portion and positions the annular mounting portion of the resin boot attached to the constant velocity joint at a predetermined position before pressing the protruding portion of the fixing band, and is provided on the holding portion. ,etc A bellows portion for pressing the bellows portion of the resin boot close to the small diameter annular mounting portion attached to the shaft portion of the inner member of the joint toward the large diameter annular mounting portion side before clamping the protrusion of the fixing band. A fixing mechanism, comprising: a pressing mechanism. 4. The apparatus according to claim 1, wherein the end positioning mechanism positions the large-diameter annular mounting portion of the resin boot mounted on the cup portion of the constant velocity joint at a predetermined position. A fixing band fastening device comprising an end positioning mechanism. 5. The small-diameter device according to claim 1, wherein the end positioning mechanism positions the small-diameter annular mounting portion of the resin boot mounted on the shaft of the inner member of the constant velocity joint at a predetermined position. A fixing band fastening device comprising a side end positioning mechanism. 6. An apparatus according to claim 1, wherein said end positioning mechanism positions a large-diameter annular mounting portion of a resin boot mounted on a cup portion of a constant velocity joint at a predetermined position. A fixing band comprising: an end positioning mechanism; and a small-diameter end positioning mechanism for positioning a small-diameter annular mounting portion of a resin boot mounted on a shaft of an inner member of a constant velocity joint at a predetermined position. Tightening device. 7. The device according to claim 4, wherein the large-diameter end positioning mechanism is provided so as to be able to advance and retreat toward a cup portion of a constant velocity joint under a driving action of the actuator. Having a cylindrical collar, wherein one end of the collar abuts the large-diameter annular mounting portion provisionally positioned on the cup portion, whereby the large-diameter annular mounting portion is positioned at a predetermined position. Fixing device for fastening. 8. The apparatus according to claim 5, wherein said small-diameter end positioning mechanism includes a first and a second actuator, and a substantially vertical direction and a substantially horizontal direction under a driving action of said first and second actuators. A chuck member provided so as to be displaceable in a direction, and a set of support members provided so as to be able to approach or separate under the driving action of the chuck member;
A support block provided on the pair of support members and rotatably supporting the shaft of the inner member; and an arc-shaped protrusion provided on the support block and projecting by a predetermined length along the axial direction of the shaft. And an end portion of the arc-shaped projection abuts the provisionally positioned small-diameter annular mounting portion, whereby the small-diameter annular mounting portion is positioned at a predetermined position. Attachment device. 9. The apparatus according to claim 2, wherein the bellows pressing mechanism is movable back and forth from a direction inclined at a predetermined angle with respect to the axis of the shaft of the inner member under the driving action of the actuator. The flat portion of the pressing plate enters a boundary portion between the small-diameter annular mounting portion and the bellows portion, and presses the bellows portion toward the large-diameter annular mounting portion side. Fixing band tightening device. 10. The fixing band tightening device according to claim 3, wherein the end positioning mechanism and the bellows pressing mechanism are provided so as to operate substantially simultaneously. 11. An apparatus according to claim 7, wherein an annular member is externally fitted to said collar, and a collar and a constant velocity joint are integrally rotatably provided via a pair of rollers engaged with said annular member. A fixing band fastening device, wherein 12. The apparatus according to claim 9, wherein the actuator is connected via a mounting member to a column that rotatably supports a drive shaft, which is a shaft portion of an inner member, via an attachment member. A fixing band tightening device, wherein the fixing band tightening device is arranged to be inclined at a predetermined angle. 13. The apparatus according to claim 11, wherein the collar surrounds a holding block of a chuck mechanism for holding a cup portion of the constant velocity joint, and is provided so as to be able to advance and retreat along an axis of the holding block. Characteristic fixing band fastening device.