JP2011000651A - Clamp pressing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clamp pressing device which can automatically press and attach a boot to a shaft.SOLUTION: The clamp pressing device 1 includes a clamp pressing part 10 abutting on a small clamp K1, a moving mechanism for holding the clamp pressing part 10 so as to be movable between a pressing position and a retreating position of the clamp pressing part 10, a lock mechanism for locking the clamp pressing part 10 at a pressing position and an independent control type air cylinder 70 which unlocks the locked state of the clamp pressing part 10 by the lock mechanism, and then, moves the clamp pressing part 10 to a retreating position from the pressing position. When the boot B is pressed and attached to the shaft S together with the small clamp K1, the small clamp K1 can be prevented from slipping out by the clamp presser 1. Thus, the boot B can be automatically pressed and attached to the shaft S.

Description

  The present invention relates to a clamp holding device that prevents a clamp disposed at a small-diameter end of a boot from falling off when a boot and a shaft of a constant velocity joint are press-fitted and assembled.

  Conventionally, various constant velocity joints such as tripod type and Rzeppa type are frequently used in automobiles. As an assembling method and assembling apparatus for assembling these constant velocity joints, for example, there is one described in JP-A-6-31326 (Patent Document 1).

  Patent Document 1 discloses an assembling method that automates a series of assembling operations of constant velocity joints. In this assembling method, assembly parts such as shafts, boots, bands (clamps), and joint frames supplied to the pallets are sequentially assembled in each process while a plurality of pallets move along the flow of the conveyor. It is a thing. Patent Document 1 discloses various apparatuses used in the above assembly process.

JP-A-6-31326

  By the way, when assembling the constant velocity joint as described above, one end of the shaft is usually inserted into the small-diameter end of the boot formed in a substantially cone shape with rubber or the like, and the small-diameter end of the boot is inserted. The process of assembling the boot and the shaft to be assembled at a predetermined position of the shaft is performed first.

  For example, as shown in FIG. 6, this assembling step is arranged by placing a boot press-fitting metal jig 91 inside the boot B arranged with the large diameter side up, and placing the small size outside the small diameter end of the boot B. The shaft S is disposed at a predetermined position from the small-diameter end side of the boot B with the clamp K1 and the large clamp K2 disposed outside the large-diameter end portion and covered with a protective cap 92 that prevents damage to the boot B at the tip. Press fit. As a result, the small-diameter end of the boot B is clamped from the outside by the small clamp K1 by being expanded in diameter by the press-fitted shaft S, and is fixed to a predetermined position of the shaft S.

  By the way, the above-described press-fit assembly of the boot B, the small clamp K1, and the shaft S is performed manually by the operator. However, when the resin boot B is used, the pressure input becomes high because the allowance of the boot B during press fitting is small. For this reason, the press-fitting work becomes difficult with the force of the worker, and mechanization is required. Further, when the above press-fit assembly work is mechanized, the small clamp K1 disposed outside the small-diameter end of the boot B falls if there is no support until just before the press-fit is completed. It is necessary to hold down.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a clamp pressing device capable of automating the press-fit assembly of a boot and a shaft.

In order to solve the above problem, the feature of the invention according to claim 1 is:
When the shaft is inserted into the small-diameter end of the boot in a state where the clamp in the pre-fastening state is disposed outside the small-diameter end of the substantially cone-shaped boot, the pre-fastening clamp does not fall off the boot. A clamp holding device for temporarily holding the clamp,
A clamp holding part that contacts the clamp;
A moving mechanism for movably holding the clamp holding portion between a holding position and a retracted position of the clamp holding portion;
A locking mechanism for locking the clamp pressing portion at the pressing position;
An actuator that releases the locked state of the clamp holding portion by the locking mechanism and moves the clamp holding portion that is released from the locked state from the holding position to the retracted position;
It is equipped with.

  According to a second aspect of the present invention, the lock mechanism according to the first aspect of the invention is characterized in that the lock mechanism includes an arm having a longitudinally intermediate portion pivotably supported and one end pivotally supported by the moving mechanism, and the clamp holding member. A locking claw member that engages with the other end of the arm when the portion is located at the holding position and locks the clamp holding portion, and the actuator is operated so that the other end of the arm and the locking claw member And an unlocking member for releasing the engagement.

  A feature of the invention according to claim 3 is that, in claim 2, the swing center of the arm is set at a position closer to the other end side from the longitudinal center of the arm.

  A feature of the invention according to claim 4 is that, in claim 2 or 3, the lock claw member has an engaging claw that engages with the other end of the arm.

  According to a fifth aspect of the present invention, in any one of the second to fourth aspects, the actuator includes a contact member that contacts and presses the other end of the arm and the unlocking member. is there.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the moving mechanism includes: a movable body to which the clamp pressing portion is attached; and a support member that movably supports the movable body. Is.

  According to a seventh aspect of the present invention, in the sixth aspect, the movable body includes a rail portion installed so as to extend in a direction connecting the retracted position and the pressing position of the clamp pressing portion, The support member includes a guide portion that guides the rail portion in a predetermined movement direction.

  A feature of the invention according to claim 8 is that, in claim 6 or 7, the movable body is provided with a handle portion for manually moving the clamp pressing portion from the retracted position to the pressing position. is there.

  According to a ninth aspect of the present invention, in any one of the sixth to eighth aspects, the movable body is configured to bias the clamp pressing portion in a direction from the retracted position toward the pressing position. The member is provided.

  According to a tenth aspect of the present invention, in any one of the first to ninth aspects, the tip end portion of the clamp pressing portion is formed in a shape that abuts against two locations of the clamp and connects the two locations. It is provided so as to be swingable in the direction.

  The clamp pressing device according to the first aspect of the present invention configured as described above is used when press-fitting and assembling the boot and the shaft. In other words, the assembly device that automatically press-fits the boot and the shaft is set with the shaft facing vertically, and the boot is held above the shaft so that it can be moved up and down. After the boot is set so that the small-diameter end is positioned below the jig and coaxial with the shaft, the ring-shaped clamp in the pre-fastening state is set coaxially outside the small-diameter end of the boot. Is done.

  At this time, the clamp is slightly larger than the outer diameter of the small-diameter end of the boot, and if it is not supported, it will fall off the boot, so press it against the small-diameter end of the boot with the clamp holding part of the clamp holding device. Thus, it is set so as to remain in a predetermined position. At this time, the clamp pressing portion of the clamp pressing device is moved by the moving mechanism from the retracted position to a pressing position where the clamp pressing portion is in contact with the clamp, and holds the clamp at a predetermined position. At the same time, when the clamp pressing portion reaches the pressing position, the clamp pressing portion is locked by the lock mechanism and maintains the state in which the clamp is pressed against the small diameter end portion of the boot.

  Thereafter, the boot holding jig and the clamp presser are lowered to a predetermined position in synchronization, whereby the upper end of the shaft is press-fitted inside the small diameter end of the boot. As a result, the small-diameter end of the boot is assembled at a predetermined position on the upper end of the shaft in a state of being clamped and fixed by the clamp. Thereafter, the clamp pressing portion of the clamp pressing device is released from the locked state at the pressing position by the operation of the actuator, and then moves from the pressing position to the retracted position and returned to the initial position.

  Therefore, according to the first aspect of the present invention, when the boot and the shaft are press-fitted together with the clamp, the clamp pressing device can prevent the clamp from falling off, so the press-fit assembly of the boot and the shaft can be automated. Can be realized.

  According to the second aspect of the present invention, the locking mechanism is configured such that the longitudinal intermediate portion is pivotally supported and the one end is pivotally supported by the moving mechanism, and the clamp pressing portion is positioned at the pressing position. A lock claw member that engages with the other end of the arm to lock the clamp holding portion, and a lock release member that releases the engagement between the other end of the arm and the lock claw member by actuation of the actuator. . Thereby, a compact lock mechanism with few parts is realizable. In this case, the engagement position between the other end of the arm and the lock claw member is released by setting the position of the lock release member in the vicinity of the position of the other end of the arm when the lock claw member is engaged. The releasing operation and the operation of moving the clamp pressing portion from the pressing position to the retracted position can be performed by one actuator. As a result, the actuator can be reduced in size, space saving, and cost reduction.

  According to the invention of claim 3, the swing center of the arm is set at a position that is closer to the other end side from the longitudinal center of the arm. As a result, the moving distance of the moving mechanism provided on the one end side of the arm can be amplified with respect to the working distance of the actuator provided on the other end side of the arm, so that the actuator can be reduced in size and saved in space. Become.

  According to the fourth aspect of the present invention, the lock claw member has the engagement claw that engages with the other end of the arm. Thereby, since the engagement with the other end of the arm can be ensured by the engagement claw, a reliable locked state of the clamp pressing portion can be ensured.

  According to the invention which concerns on Claim 5, an actuator has a contact member which contacts and presses the other end part of an arm and a lock release member. As a result, the two members of the arm and the unlocking member can be operated with one abutting member, so that the operation of the actuator can be simplified, so that the actuator can be reduced in size and space can be saved. Become.

  According to the invention which concerns on Claim 6, the moving mechanism is provided with the movable body to which a clamp holding | suppressing part is attached, and the support member which supports a movable body so that a movement is possible. Thereby, the moving mechanism for moving the clamp pressing portion can be realized with a simple structure.

  According to the invention which concerns on Claim 7, a movable body has a rail part installed so that it may extend in the direction which connects the retraction position of a clamp holding | suppressing part, and a pressing position, and a supporting member carries out predetermined movement of a rail part. It has a guide part that guides in the direction. Thereby, since a movable body moves linearly along a rail part, the clamp pressing part attached to the movable body can be moved in the shortest distance between a retracted position and a pressing position. In addition, since the operation amount of the actuator that moves the clamp pressing portion can be reduced, space can be saved.

  According to the eighth aspect of the present invention, the movable body is provided with the handle portion for manually moving the clamp pressing portion from the retracted position to the pressing position. Accordingly, the clamp pressing portion can be manually moved using the handle portion, so that an actuator for moving the clamp pressing portion from the retracted position to the pressing position is not required. For this reason, it is possible to reduce the size and size of the clamp holding device and reduce the cost.

  According to the invention of claim 9, the movable body is provided with a biasing member that biases the clamp pressing portion in the direction from the retracted position toward the pressing position. As a result, the clamp holding portion is constantly biased with respect to the clamp pressed and held by the clamp holding portion. Can be absorbed. Therefore, it is possible to more reliably hold the clamp by the clamp pressing portion.

  According to the tenth aspect of the present invention, the tip of the clamp pressing portion is formed in a shape that comes into contact with two locations of the clamp, and is provided so as to be swingable in the direction connecting the two locations. It can be reliably pressed and held. In addition, the clamp holding portion can absorb the reaction force in the retracted position direction received when the shaft is press-fitted into the small-diameter end portion of the boot by swinging, thus preventing the locked state. be able to.

It is a bottom view of the clamp holding device concerning an embodiment, and is a figure showing the state where a clamp holding part is located in a retreat position. It is a bottom view of the clamp press device concerning an embodiment, and is a figure showing the state where a clamp press part is located in a press position. It is sectional drawing which shows the lock release member and lock claw member in the AA line cut surface of FIG. It is sectional drawing which shows the actuator and arm in the BB line cut surface of FIG. It is a schematic diagram which shows the outline of the assembly | attachment apparatus used when press-fitting the small diameter edge part of a boot in a shaft in embodiment. It is explanatory drawing of the process of fitting and fixing the small diameter edge part of boots to the predetermined position of a shaft.

  Hereinafter, a clamp holding device according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 5, the clamp holding device 1 of this embodiment is mounted on an assembly device 80 that automatically press-fits the shaft S and the boot B, which is used in the assembly of a constant velocity joint.

  The assembling apparatus 80 includes a holding base 81 that holds the shaft S in a state in which the longitudinal direction is in the vertical direction, a lifting base 83 that is attached to the frame 82 so as to be vertically movable, and a horizontal substrate of the lifting base 83. And a boot holding jig 84 that is attached to the lower surface of 83a and holds the boot B. The boot B held by the boot holding jig 84 is set so that the large-diameter end thereof is fixed to the boot holding jig 84 and is coaxial with the shaft S at a position above the shaft S. The clamp holding device 1 of the present embodiment is configured so that the clamp holding portion 10 faces the ring-shaped small clamp K1 coaxially arranged outside the small-diameter end portion of the boot B so that the side base portion of the lifting / lowering base 83 is disposed. 83b is attached.

  The clamp press apparatus 1 of this embodiment has the clamp press part 10, the movable body 20, and the supporting member 30, as shown in FIGS. 1-4, and hold | maintains the clamp press part 10 so that a movement to a predetermined direction is possible. A lock mechanism that has a moving mechanism, an arm 40, a lock claw member 50, and a cam follower (lock release member) 60, locks the clamp pressing portion 10 at a pressing position, and releases the lock state of the lock mechanism, and also holds the clamp pressing portion. And a single-acting air cylinder (actuator) 70 for moving 10 to the retracted position.

  The clamp holding part 10 is in contact with the outer peripheral surface of the small clamp K1 disposed coaxially on the outer side of the small diameter end part of the boot B and presses the small clamp K1. The tip end portion of the clamp pressing portion 10 is formed in a forked shape, and is formed in a shape that can come into contact with two places in the circumferential direction of the outer peripheral surface of the small clamp K1. In addition, the clamp holding portion 10 is attached to the support portion 11 in a state in which the clamp holding portion 10 can freely move with the bolt 12. Thereby, the clamp holding | suppressing part 10 can be rock | fluctuated in the direction which connects two places where a front-end | tip part contact | abuts to the small clamp K1.

  The boot holding jig 84 detects the presence or absence of the small clamp K1 disposed outside the small diameter end portion of the boot B, and is in an appropriate position when the small clamp K1 is pressed by the clamp pressing portion 10. Sensors 13 and 14 for detecting the above are provided (see FIGS. 1 and 2). Thereby, it is made to detect with the two sensors 13 and 14 whether the small clamp K1 is arrange | positioned in the appropriate position. Further, a sensor 15 for confirming whether or not the clamp pressing portion 10 is in an appropriate position is installed at a predetermined position near the clamp pressing portion 10.

  The moving mechanism moves the clamp between the pressing position of the clamp pressing portion 10 (the position contacting the small clamp K1 (see FIG. 2)) and the retracted position (the position farthest from the small clamp K1 (see FIG. 1)). The part 10 is held movably. The moving mechanism includes a movable body 20 to which the clamp holding unit 10 is attached, and a support member 30 that supports the movable body 20 so as to be movable. The movable body 20 has a long-shaped main body portion 21 having a rectangular cross section, and a clamp holding portion 10 is attached to one end portion of the main body portion 21 via a support portion 11. A coil spring (biasing member) 22 is disposed between the opposing surfaces of the main body portion 21 and the support portion 11, and the clamp pressing portion 10 moves from the retracted position to the pressing position by the coil spring 22. It is biased in the direction.

  On one side surface of the main body portion 21 (the upper surface in FIGS. 1 and 2), a rail portion 23 extending along the longitudinal direction of the main body portion 21 is integrally provided. The rail portion 23 is installed so as to extend in a direction connecting the retracted position and the pressing position of the clamp pressing portion 10. Further, a connection substrate 24 having a long hole 24a formed in the center is fixed to the upper surface of the main body 21 (the back surface in FIGS. 1 and 2). The long hole 24 a is formed so that the long diameter portion is positioned in the width direction of the main body portion 21. Furthermore, a handle portion 25 for manually moving the clamp pressing portion 10 from the retracted position to the pressing position is provided on the lower surface of the main body portion 21 (the front side surface in FIGS. 1 and 2).

  The support member 30 includes a base portion 31 fixed to a frame (not shown) of the clamp pressing device, and a guide portion 32 fixed to the base portion 31. The guide portion 32 is provided with a guide groove having a concave cross section extending in a direction connecting the retracted position and the pressing position of the clamp pressing portion 10. The rail portion 23 of the movable body 20 is slidably fitted in the guide groove. Thereby, the movable body 20 can be moved in a direction connecting the retracted position and the pressing position of the clamp pressing portion 10 by being guided by the guide groove.

  The lock mechanism includes an arm 40, a lock claw member 50, and a cam follower 60. The arm 40 is pivotally supported at the middle part in the longitudinal direction by the swinging center shaft 41. One end of the arm 40 is pivotally supported by a shaft member 42 that is loosely fitted in the long hole 24 a of the connection board 24 of the movable body 20. Further, a contacted member 43 to which a contact member 72 attached to the tip of the rod 71 of the single-acting air cylinder 70 contacts is fixed to the other end side of the arm 40. An engagement portion 44 that engages with the engagement claw 52 of the lock claw member 50 is provided at the distal end portion on the other end side of the contacted member 43.

  The length of the arm 40 from the swing center shaft 41 to the shaft member 42 on one end side is approximately twice as long as the length from the swing center shaft 41 to the engagement portion 44 on the other end side. That is, the swing center axis 41 of the arm 40 is set at a position that is closer to the other end side from the longitudinal center of the arm 40. Thus, when the arm 40 swings about the swing center shaft 41, the movement amount at one end is amplified more than the movement amount at the other end.

  As shown in FIGS. 1 to 3, the lock claw member 50 is pivotally supported by a swing shaft 51 disposed in parallel with a predetermined distance from the swing center shaft 41 of the arm 40 so as to swing freely. ing. The swing shaft 51 is fixed to the frame 1 a of the clamp pressing device 1. One end of the lock claw member 50 (upper end in FIGS. 1 to 3) is provided with an engagement claw 52 that engages with the engagement portion 44 at the tip of the contacted member 43 fixed to the other end of the arm 40. It has been. When the engaging claw 52 engages with the engaging portion 44 of the arm 40, the movable body 20 connected to one end side of the arm 40 is locked, so that the clamp holding portion 10 also contacts the small clamp K1. Locked to the holding position in the state. Further, a coil spring 53 is disposed at the other end of the lock claw member 50 (the lower end in FIGS. 1 to 3), and the lock claw member 50 is centered on the swing shaft 51 by the coil spring 53. The engaging claw 52 is biased so as to rotate in a direction approaching the engaging portion 44.

  As shown in FIGS. 1 to 3, the cam follower 60 is formed of a rigid material in a thick cylindrical shape. The cam follower 60 is integrally fixed to the bracket 61 fixed to the lock claw member 50 by bolting, and the cam follower 60 has a shaft parallel to the swing shaft 51 of the lock claw member 50. It is disposed near the side of the engaging claw 52.

  As shown in FIGS. 1, 2, and 4, the single-acting air cylinder 70 used as an actuator is on the upper surface side (the back side in FIGS. 1 and 2) of the support member 30, and the swing central axis of the arm 40. 41 and the cam follower 60. This single-acting air cylinder 70 is fixed to the frame 1a of the clamp holding device 1 by bolting via a bracket 70a. A square block-shaped contact member 72 is attached to the tip of a rod 71 protruding by air of the single-acting air cylinder 70. In the present embodiment, the protruding stroke of the rod 71 protruding by air is set to about 30 mm.

  The abutting member 72 includes a first abutting portion 73 and a second abutting portion 74 fixed to the upper surface (right side surface in FIG. 4) of the first abutting portion 73. The second contact portion 74 is formed in a rectangular block shape smaller than the first contact portion 73, and the distal end surface of the second contact portion 74 is rod 71 than the distal end surface of the first contact portion 73. Is located on the rear side in the protruding direction. That is, a predetermined amount of step is formed between the tip surface of the second contact part 74 and the tip surface of the first contact part 73.

  When the first abutting portion 73 moves with the protrusion of the rod 71 by the operation of the single-acting air cylinder 70, the corner portion where the tip surface and one side surface intersect with the outer peripheral surface of the cam follower 60. It is arranged at a position where quantitative interference occurs. As a result, the first abutting portion 73 presses the cam follower 60 on one side that is in contact with the cam follower 60, thereby rotating the lock claw member 50 together with the cam follower 60, and the engaging claw 52 and the engaging portion 44. The engagement with is released. When the engagement between the engagement claw 52 and the engagement portion 44 is released, the arm 40 can swing.

  On the other hand, when the second contact portion 74 moves with the protrusion of the rod 71 by the operation of the single-acting air cylinder 70, the contacted member 43 whose front end surface is fixed to the other end side of the arm 40. It is arrange | positioned in the position contact | abutted with the flat surface. As a result, the second contact portion 74 is set so that the front end surface is in contact with and presses against the flat surface of the contacted member 43 with a slight delay from the contact between the first contact portion 73 and the cam follower 60. Has been. When the abutted member 43 is pressed by the second abutting portion 74, the unlocked arm 40 rotates about the pivot center axis 41 and is connected to one end side of the arm 40. The clamp pressing portion 10 attached to the movable body 20 is moved from the pressing position to the retracted position and returned to the initial position. In this embodiment, the moving distance from the pressing position of the clamp pressing portion 10 to the retracted position is set to about 70 mm.

  Next, an operation in the case where the boot and the shaft are press-fitted and assembled using the assembling apparatus 80 shown in FIG. 5 on which the clamp holding device 1 of the present embodiment is mounted will be described. First, the shaft S is placed on the centering center 81a on the holding base 81 and set in a state where the longitudinal direction faces the vertical direction. Subsequently, the large-diameter end of the boot B is fixed to the boot holding jig 84 positioned right above the shaft S, and the boot B is set so as to be coaxial with the shaft S. Subsequently, a ring-shaped small clamp K1 in a state before being fastened is coaxially arranged outside the small-diameter end portion of the set boot B, and in this state, the clamp pressing device 1 is operated so that the small clamp K1 is connected to the boot. Do not fall from the small-diameter end of B.

  At this time, as shown in FIG. 1, the clamp pressing device 1 is located at the retracted position, and from this state, the operator uses the handle portion 25 to make the clamp pressing portion 10 small. The movable body 20 is slid (moved) along the rail portion 23 to a pressing position where it comes into contact with the outer peripheral surface of the clamp K1. Thereby, the small clamp K1 is pressed against the small diameter end portion of the boot B by the clamp pressing portion 10 and is held so as not to fall. At this time, as shown in FIG. 2, when the clamp pressing portion 10 reaches the pressing position, the clamping claw 52 and the engaging portion 44 engage with each other to engage the locking portion 44, thereby locking the small clamp K1. Keep pressed.

  By lowering the lifting platform 83 in this state, the clamp holding device 1 is also lowered together with the boot B fixed to the boot holding jig 84, and the state in which the small clamp K 1 is held by the boot B by the clamp holding portion 10. Maintained. When the small-diameter end of the boot B descending passes through the upper end of the shaft S, the shaft S is press-fitted inside the small-diameter end of the boot B, and the boot B descending to a predetermined position stops descending. As a result, the small-diameter end of the boot B is assembled and fixed to the predetermined position of the upper end of the shaft S by the small clamp K1.

  Thus, at the time when the press-fit assembly of the boot B and the shaft S is completed, the clamp pressing portion 10 of the clamp pressing device 1 is positioned at the pressing position while being in contact with the outer peripheral surface of the small clamp K1. . In this state, when the single-acting air cylinder 70 is operated, the contact member 72 moves as the rod 71 protrudes, and the first contact portion 73 presses the cam follower 60 on one side surface to The engagement between the engagement claw 52 and the engagement portion 44 is released. Immediately after this, the second abutting portion 74 of the abutting member 72 that moves with the protrusion of the rod 71 abuts against and presses against the abutted member 43, thereby swinging the unlocked arm 40. It is rotated around the central axis 41. Thereby, the clamp pressing part 10 moves from the pressing position to the retracted position and returns to the initial position (FIG. 1) via the movable body 20 connected to one end side of the arm 40.

  In this manner, the boot B and the shaft S that have been press-fitted and assembled by the assembling apparatus 80 on which the clamp pressing device 1 is mounted are sent to the next step.

  As described above, according to the clamp holding device 1 of the present embodiment, when the boot B and the shaft S are press-fitted and assembled together with the small clamp K1, the clamp holding device 1 can prevent the small clamp K1 from falling off. As a result, the press-fit assembly of the boot B and the shaft S can be automated.

  Further, in the present embodiment, a single-acting type provided with the abutting member 72 includes an operation of releasing the locked state by the lock mechanism of the clamp pressing portion 10 and an operation of moving the clamp pressing portion 10 from the pressing position to the retracted position. Since the operation is performed by the air cylinder 70, the actuator can be reduced in size, space saving, and cost reduction.

  Further, in the present embodiment, the swing center of the arm 40 is set at a position closer to the other end side from the longitudinal center of the arm 40, so that the single-acting air provided on the other end side of the arm 40 is set. Since the moving distance of the movable body 20 and the clamp holding portion 10 provided on one end side of the arm 40 can be amplified with respect to the working distance of the rod 71 of the cylinder 70, the single-acting air cylinder 70 can be reduced in size and saved. Space becomes possible.

  And in this embodiment, since the moving mechanism is comprised from the movable body 20 to which the clamp holding | suppressing part 10 is attached, and the support member 30 which supports the movable body 20 so that a movement is possible, the clamp holding | suppressing part 10 is moved. The moving mechanism can be realized with a simple structure.

  Moreover, in this embodiment, since the movable body 20 has the rail part 23 installed so that it may extend in the direction which connects the retraction position of the clamp holding | suppressing part 10, and the pressing position, the movable body 20 is made into the rail part 23. Can be moved along a straight line. Thereby, the clamp holding | suppressing part 10 attached to the movable body 20 can be moved by the shortest distance between a retracted position and a pressing position. In addition, since the amount of operation of the single-acting air cylinder 70 that moves the clamp holding portion 10 can be reduced, space saving can be achieved.

  Further, since the movable body 20 is provided with the handle portion 25, the clamp pressing portion 10 can be manually moved from the retracted position to the pressing position by using the handle portion 25. No actuator is required to move the lever from the retracted position to the pressing position. Therefore, the compactness and cost reduction of the clamp pressing device 1 can be achieved. Moreover, since it is manual, the safety of the hand of the operator who is temporarily holding the clamp so that it does not fall until the clamp holding part 10 presses the small clamp K1 is ensured.

  Further, since the movable body 20 is provided with a coil spring 22 that urges the clamp pressing portion 10 in the direction from the retracted position toward the pressing position, the movable body 20 has a small clamp K1 that is pressed and held by the clamp pressing portion 10. Thus, since the clamp holding portion 10 is constantly urged, the coil spring 22 can absorb the variation in the diameter of the boot B, the positional deviation, or the irregularities on the surface of the small clamp K1. Thereby, it becomes possible to more reliably hold the small clamp K <b> 1 by the clamp pressing portion 10.

  Moreover, in this embodiment, the clamp holding | maintenance part 10 is comprised so that it may contact | abut on two places of the outer peripheral surface of the small clamp K1, and the clamp holding | suppressing part 10 is provided so that rocking | fluctuation is possible in the direction which connects the two places. Therefore, the small clamp K1 can be reliably held by the clamp holding part 10.

  In the above-described embodiment, the movement of the clamp pressing portion 10 from the retracted position to the pressing position is manually performed using the handle portion 25. However, the clamp pressing portion 10 may be mechanized and automatically performed. Good. However, if it does in this way, said effect obtained when performing manually will not be acquired.

  DESCRIPTION OF SYMBOLS 1: Clamp press apparatus, 10: Clamp press part, 20: Movable body, 22: Coil spring (biasing member), 23: Rail part, 25: Handle part, 30: Support member, 32: Guide part, 40: Arm 41: oscillating central shaft 44: engagement portion 50: lock claw member 52: engagement claw 53: coil spring (biasing member) 60: cam follower (lock release member) 70: single acting Air cylinder (actuator), 71: Rod, 72: Abutting member, B: Boot, K1: Small clamp, S: Shaft.

Claims (10)

When the shaft is inserted into the small-diameter end portion of the boot in a state where the clamp in the pre-fastening state is disposed outside the small-diameter end portion of the substantially cone-shaped boot, the clamp in the pre-fastening state does not fall off from the boot. A clamp holding device for temporarily holding the clamp,
A clamp holding part that contacts the clamp;
A moving mechanism for movably holding the clamp holding portion between a holding position and a retracted position of the clamp holding portion;
A locking mechanism for locking the clamp pressing portion at the pressing position;
An actuator that releases the locked state of the clamp holding portion by the locking mechanism and moves the clamp holding portion that is released from the locked state from the holding position to the retracted position;
A clamp holding device comprising: In claim 1,
The locking mechanism includes an arm whose longitudinal intermediate portion is pivotably supported and one end pivotally supported by the moving mechanism, and the other end of the arm when the clamp pressing portion is positioned at the pressing position. A locking claw member that engages and locks the clamp holding portion; and an unlocking member that releases the engagement between the other end of the arm and the locking claw member by the operation of the actuator. A clamp holding device characterized by that. In claim 2,
The clamp holding device according to claim 1, wherein the swing center of the arm is set at a position closer to the other end side from the longitudinal center of the arm. In claim 2 or 3,
The clamp holding device, wherein the lock claw member has an engaging claw that engages with the other end of the arm. In any one of Claims 2-4,
The clamp pressing device according to claim 1, wherein the actuator includes a contact member that contacts and presses the other end of the arm and the unlocking member. In any one of Claims 1-5,
The said movement mechanism is provided with the movable body to which the said clamp holding | suppressing part is attached, and the support member which supports the said movable body so that a movement is possible, The clamp holding | suppressing apparatus characterized by the above-mentioned. In claim 6,
The movable body has a rail portion installed so as to extend in a direction connecting the retracted position and the pressing position of the clamp pressing portion, and the support member guides the rail portion in a predetermined moving direction. A clamp holding device having a guide portion. In claim 6 or 7,
A clamp pressing device, wherein the movable body is provided with a handle for manually moving the clamp pressing portion from the retracted position to the pressing position. In any one of Claims 6-8,
A clamp pressing device, wherein the movable body is provided with a biasing member that biases the clamp pressing portion in a direction from the retracted position toward the pressing position. In any one of Claims 1-9,
The clamp pressing device is characterized in that a tip end portion of the clamp pressing portion is formed in a shape that comes into contact with two locations of the clamp and is swingable in a direction connecting the two locations.

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