JP2001105062A - Tool and method for caulking coupling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a caulking coupling tool to achieve the appropriate caulking coupling. SOLUTION: A movable support member 7 which is displaceable in the axial direction of a rotary press shaft 100 by a predetermined quantity is mounted on a body 3 fitted to the rotary press shaft 100, a roller pedestal member 15 is mounted thereon movably in the radial direction of the rotary press shaft 100, and a caulking roller 19 is rotatably fitted. The body 3, the movable support member 7 and the roller pedestal member 15 are pivotably connected to each other by a link member 25 to drive the roller pedestal member 15 in the radial direction by the movement in the approaching direction of the body 3 to the movable support member 7. A stopper member 23 to regulate the maximum movement position inwardly in the radial direction of the roller pedestal member 15 is fixed to the movable support member 7. A holding member 39 abutted on a non-caulking deformation part of a fixed work is mounted on the movable support member 7 in a displaceable manner by a predetermined quantity in the axial direction, and the holding member 39 is urged in the direction away from the movable support member 7 by an absorbing spring 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caulking connection tool and a caulking connection method, and more particularly, to a caulking connection which is attached to a rotary press shaft to reduce the diameter of the entire circumference of a cap-shaped member (caulking deformation). The present invention relates to a tool and a caulking method.

[0002]

2. Description of the Related Art In a state where an object to be caulked is formed by attaching a caulking deformation part to a non-caulking deformation part, the caulking deformation part is used to caulk the non-caulking deformation part,
As shown in Japanese Utility Model Laid-Open Publication No. 3-37791, a crimping coupling tool attached to a rotary press shaft to reduce the diameter of the entire periphery of the cap-shaped member is mounted on the rotary press shaft. A movable support member attached to the main body so as to be displaceable only by a predetermined amount in the axial direction; and a central axis of itself attached to the main body so as to be movable in a radial direction from the movable support member by an arm and parallel to the central axis of the main body One having a caulking roller rotatable therearound is known.

In this caulking tool, the movable support member moves in the axial direction together with the main body due to the axial movement of the rotary press shaft, and the movable support member abuts a fixedly arranged non-caulking deforming portion to prevent further axial movement. After that, the main body is moved in the axial direction by the axial movement of the rotary press shaft, thereby causing relative displacement in the axial direction between the main body and the movable support member, and The arm is driven radially inward by the cam engagement relationship between the side arm and the cam surface of the main body, and the swaging roller is used to revolve the swaging roller around the center axis of the swaging object. By pressing in the diameter reducing direction, the caulked deformation portion is reduced in diameter.

[0004]

In the caulking connection tool as described above, the moving amount of the caulking roller inward in the radial direction is as follows.
It is determined uniformly by the cam shape (axial movement / radial movement conversion inclination) and the axial movement amount (stroke) of the rotary press shaft. If the stroke setting is erroneously set to a value larger than the appropriate value, excessive caulking will occur. Is performed, and FIG.
As shown in (a) and (b), the caulked deformation portion X is crushed, and proper caulking is not performed. Also,
Conversely, if the stroke setting is erroneously set to a value smaller than the appropriate value, insufficient caulking occurs, and as shown in FIG. 10C, the non-caulked deformation portion Y and the caulked deformation portion X A gap is formed between them, and proper crimping is not performed.

[0005] In the above-mentioned swaging tool,
Even if the stroke setting is correctly performed, if the dimensional accuracy and placement position accuracy of the object
Excessive staking or insufficient staking,
Proper caulking is not performed. (If the size of the object to be caulked is large, excessive caulking is performed, and if the size of the object to be caulked is small, insufficient caulking occurs.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. Even if there is a slight error in the stroke setting of the rotary press shaft, the dimensional accuracy and arrangement position accuracy of the object to be caulked may be somewhat reduced. It is an object of the present invention to provide a caulking connection tool and a caulking connection method capable of performing proper caulking and reducing the defective product occurrence rate and improving the degree of sealing of the caulked portion even if there is a variation in I have.

[0007]

In order to achieve the above-mentioned object, a swaging tool according to the first aspect of the present invention comprises:
A caulking coupling tool used to caulk the caulking deformation portion to the non-caulking deformation portion in a state where the caulking deformation portion is attached to the non-caulking deformation portion to form an object to be caulked, and attached to the rotary press shaft. A main body movable in the axial direction of the rotary press shaft, a movable support member attached to the main body so as to be displaceable by a predetermined amount in the axial direction of the rotary press shaft, and the rotary press on the movable support member. A roller pedestal member movably mounted in a radial direction of a shaft, a caulking roller rotatably mounted on the roller pedestal member rotatably about its own central axis parallel to the central axis of the main body, the main body and the movable body The main body and the movable support member are pivotally connected to a support member and the roller pedestal member, and the main body and the movable support member approach in the axial direction of the rotary press shaft. A link member for driving the roller base member radially inward of the rotary press shaft; and a link member fixed to the movable support member and defining a maximum movement position of the roller base member radially inward of the rotary press shaft. A stopper member to be displaced by a predetermined amount in the axial direction of the rotary press shaft with respect to the movable support member, and a pressing member to abut against the non-caulking deformation portion in a fixed arrangement from the axial direction, and the rotary press An absorbing spring that urges the holding member in a direction away from the movable support member in the axial direction of the shaft.

According to a second aspect of the present invention, there is provided a caulking connection tool, wherein the caulking roller is a caulking roller having a concave portion corresponding to a shape after caulking of the deformed portion to be caulked at an outer peripheral corner. .

According to a third aspect of the present invention, the linking member has an intermediate portion rotatably supported by the movable supporting member, one end pivotally connected to the main body, and the other end pivotally connected to the main body. It is pivotally connected to the roller base member.

According to another aspect of the present invention, there is provided a caulking connection method according to the present invention, wherein the caulking deformation portion is attached to a non-caulking deformation portion to form an object to be caulked. A method of caulking a portion to the non-caulking portion, comprising a concave portion corresponding to a shape after caulking of the caulking portion at an outer peripheral corner thereof and rotatable around its own central axis. Using a roller, move the caulking roller radially inward to a predetermined maximum movement position, and revolve the caulking roller around the central axis of the object to be caulked while moving the caulking roller to the caulking deformed portion. A first caulking step of pressing the concave portion from the radial direction of the object to be caulked and pressing the caulking deformed portion inward over the entire circumference of the object to be caulked; The concave portion is pressed against the caulking deformed portion from the radial direction of the caulked object while moving the caulking roller around the central axis of the object to be caulked, and moving the caulking roller around the central axis of the object to be caulked. A part of the portion, which is pressed inward by the concave portion of the caulking roller in the first caulking step, in the central axis direction of the object to be caulked over the entire circumference of the object to be caulked;
And the second caulking step includes the step of elastically deforming an absorption spring provided between the caulking roller and a rotary press shaft that drives the revolving drive and the center axis direction of the caulking roller. It is done under.

In the caulking connection tool according to the first aspect of the present invention, when the main body is driven in the axial direction of the rotary press shaft, first, the pressing member attached to the movable support member is fixedly disposed in the non-caulking deformation portion. Then, the main body is driven in the axial direction of the rotary press shaft, and the relative movement of the pressing member with respect to the movable support member is regulated. The roller pedestal moves radially inward of the rotary press shaft by the link member due to the relative displacement in the axial direction.

Thus, the caulking roller revolves around the central axis of the object to be caulked and is pressed against the caulking deformed portion from the radial direction of the object to be caulked, thereby deforming the entire circumference of the caulked portion radially inward. . The radial inward movement of the roller pedestal member is defined by the contact of the roller pedestal member with the stopper member. This determines the amount of deformation that deforms the swaged deformed portion radially inward over the entire circumference of the swaged portion.

[0013] Even after the roller pedestal member is located at the radially inward maximum movement position in contact with the stopper member,
When the main body is driven in the axial direction of the rotary press shaft, the movable support member moves in the axial direction of the rotary press shaft with respect to the pressing member while deforming the absorbing spring. Thereby, the caulking roller is pressed around the caulking deformed portion from the central axis direction of the caulking object while revolving around the central axis of the caulked object, and the caulking deformed portion is extended in the axial direction over the entire circumference of the caulking portion. To be deformed.

In the caulking coupling tool according to the second aspect of the present invention, the crimping portion is formed radially inward and axially of the caulking portion by the concave portion of the caulking roller corresponding to the shape of the caulking deformation portion after caulking. Is performed so as to be rounded.

In the caulking connection tool according to the third aspect of the present invention, the main body is displaced relative to the movable support member in the axial direction of the rotary press shaft so that the link member is a support point of the movable support member. The roller base member moves radially inward of the rotary press shaft by the rotation of the link member.

In the caulking connection method according to the fourth aspect of the invention, a caulking roller having a concave portion corresponding to a shape after caulking of the deformed portion to be caulked at an outer peripheral corner thereof and rotatable around its own central axis. In the first caulking process,
The caulking roller is moved inward in the radial direction thereof to a predetermined maximum movement position, and the caulking roller is revolved around the center axis of the object to be caulked, and the concave portion of the caulking roller is caulked to the deformed portion to be caulked. From the radial direction, presses the deformed portion inward over the entire circumference of the object to be caulked, and in the next second caulking step, moves the caulking roller in the center axis direction of the object to be caulked. The concave portion of the caulking roller is pressed from the central axis direction of the caulking object to the caulking deformation portion while revolving the caulking roller around the central axis of the caulking object, and the caulking roller of the caulking roller in the first caulking step of the caulking deformation portion. The portion pressed inward by the concave portion is pressed in the central axis direction of the object to be caulked over the entire circumference of the object to be caulked, and the second caulking step drives the caulking roller to revolve on its own. It performed based on the elastic deformation of the absorbing spring provided between the rotary press shaft and the caulking rollers for driving the central axis line direction and.

[0017]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 9 show an embodiment of a caulking tool according to the present invention.

1 to 9, a swaging tool is generally indicated by reference numeral 1 and a rotary press shaft of a swaging press machine is indicated by reference numeral 100. The rotary press shaft 100 is driven to rotate around the rotary press shaft 100 by a drive system (not shown) of a caulking press machine, and is rotated in the axial direction of the rotary press shaft 100 (FIGS. 1 and 2).
4 and 5).

The caulking tool 1 has a main body 3 attached to a rotary press shaft 100. A holding hole 5 having a relatively large diameter is formed in the main body 3 so as to open at the lower bottom surface. A movable support member 7 is slidably engaged with the holding hole 5 in the axial direction. A through bolt 9 screwed to the movable support member 7 is engaged with the main body 3 in a penetrating manner. The movable support member 7 is suspended from the main body 3 by the through bolts 9, and the relative movement amount of the main body 3 and the movable support member 7 in the axial direction is regulated to a predetermined amount.

A compression coil spring 13 is provided between the center plug 11 attached to the movable support member 7 and the main body 3.
Is provided. As shown in FIG. 1, the compression coil spring 13 obtains an initial state in which the main body 3 and the movable support member 7 are separated in the axial direction, and the main body 3 and the movable support member 7 are vertically arranged. When the initial state of the movable support member 7 can be obtained by its own weight, the compression coil spring 13 becomes unnecessary.

A roller base member 15 is mounted on the lower bottom surface of the movable support member 7 so as to be movable in the radial direction of the rotary press shaft 100. The roller base member 15 is shown in FIGS.
Although only one is drawn in FIGS. 4 and 5,
It is provided at three positions in the circumferential direction with a rotation angle of 20 degrees, and each can be moved in the radial direction of the rotary press shaft 100 with respect to the movable support member 7 in a three-jaw chuck type.

A caulking roller 19 is attached to the bottom of each roller base member 15 by screws 17 so as to be rotatable about its own central axis parallel to the central axis of the main body 3. That is, as shown in FIGS. 3 and 6, there are three caulking rollers 19 at three locations in the circumferential direction, and the lower outer peripheral corner portion has a 1/4 arc in accordance with the caulking shape. It is a concave concave portion 21 (see FIG. 9).

The roller base member 15 is brought into contact with the lower bottom of the movable support member 7 so that each roller base member 15
A cylindrical stopper member 23 for uniformly defining the maximum radially inward moving position is fixed.

As shown in FIGS. 1, 2, 4 and 5, the movable support member 7 pivots an intermediate portion of a link member 25 provided for each roller base member 15 with a pin 27. We support as much as possible. The link member 25 has a pin 31 attached to the main body 3 by an elongated hole 29 formed at one end.
The other end is pivotally connected to a pin 35 attached to the roller pedestal member 15 by an elongated hole 33.

A pressing member 39 is attached to the center of the lower bottom of the movable supporting member 7 via a center plug 11 by a mounting bolt 37 so as to be displaceable by a predetermined amount in the axial direction. The pressing member 39 is provided on the non-caulking deformed portion of the object to be caulked in a fixed arrangement, which will be described later with reference to a specific example.
Abut from the 00 axis direction.

Between the holding member 39 and the movable support member 7, an absorption spring 41 is provided by a compression coil spring for urging the holding member 39 in a direction away from the movable support member 7 in the axial direction of the rotary press shaft 100. ing.

FIG. 9 shows a pressure sensor as one specific example of the object to be caulked. The pressure sensor W has a metal joint member B having a built-in sensor portion A and a connector housing C for electrical connection, and can crimp the entire circumference of the upper peripheral edge b of the joint member B inward. Thereby, the connector housing C is caulked to the joint member B. In this case, the object to be caulked is the pressure sensor W, the non-caulked portion is the connector housing C, and the caulked portion is the upper peripheral edge b of the joint member B.

The concave portion 21 of the caulking roller 19 is formed in a shape corresponding to the shape after the upper circumferential edge b of the joint member B is caulked to the connector housing C.

Next, the caulking connection operation by the caulking connection tool 1 having the above configuration will be described.

(1) As shown in FIG. 1, in a state where the main body 3 of the swaging tool 1 is moved upward by the rotary press shaft 100, the joint member B of the pressure sensor W, which is the object to be swaged, is moved to the work. Rotary press shaft 100 by holding tool 50
And fixedly arranged on the same axis.

(2) While rotating the rotary press shaft 100, the main body 3 of the swaging tool 1 is moved downward in the axial direction of the rotary press shaft 100. Then, as shown in FIG. 2, first, the pressing member 39 abuts on the upper surface of the connector housing C, which is a non-caulking deformation portion of the object to be caulked.

(3) Then, while rotating the rotary press shaft 100, the main body 3 of the caulking connection tool 1 is moved to the rotary press shaft 1
4, the main body 3 elastically deforms the compression coil spring 13 and moves the rotary press shaft 10 with respect to the movable support member 7 as shown in FIG.
It is displaced downward in the axial direction of zero. With this displacement, each link member 25 rotates, and each roller base member 15 moves radially inward of the rotary press shaft 100 in the horizontal direction.

As a result, the caulking roller 19 of each roller pedestal member 15 revolves around the central axis of the upper peripheral edge b of the joint member B, which is the caulked deformation portion of the object.
A concave portion 21, which is a lower outer peripheral corner portion of the caulking roller 19, is pressed radially against an upper portion of the upper circumferential edge portion b of the joint member B, and the entire upper circumference of the upper circumferential edge portion b is radially inward. Deform the curl so that it is rounded.

The movement of each roller pedestal member 15 inward in the radial direction of the rotary press shaft 100 is uniformly defined by the contact of the roller pedestal member 15 with the stopper member 23. The amount of deformation for radially inwardly deforming the entire circumference of the circumferential edge portion (the caulked deformation portion) b is uniformly determined in consideration of a safety factor without excessive deformation.

This is the first caulking step, and the state at the end of the first caulking step is shown in FIG.

(4) When the roller pedestal member 15 is positioned at the maximum radially inward position where the roller pedestal member 15 abuts against the stopper member 23, the link member 25 is in a locked state. Rotary press shaft 100
, The relative displacement between the main body 3 and the movable support member 7 in the axial direction cannot be performed, and the subsequent axial driving of the main body 3 by the rotary press shaft 100 causes the main body 3 to move in FIGS. As shown in (2), the main body 3 and the movable support member 7 move down in the axial direction with respect to the pressing member 39 while elastically deforming the absorption spring 41. This allows
Each caulking roller 19 is at the upper peripheral edge (caulking deformed part)
b, while being revolved around the central axis of b, the concave portion 21 which is the lower outer peripheral corner of each caulking roller 19 is pressed from the radial direction against the curl deformation portion of the upper peripheral edge b of the joint member B, and the upper peripheral edge The entire circumference of the portion b is curled inward in the radial direction.

This is the second caulking step, and by the completion of the second caulking step, the upper peripheral edge b of the joint member B is
Following the shape of the shoulder portion of the sensor portion A located inside the joint member B, the shape is caulked and deformed into a shape corresponding to the concave portion 21 of the caulking roller 19, and the upper peripheral edge b becomes the shoulder a of the sensor portion A (FIG. 8).
See). Thus, the caulking connection operation is completed.

In the above-described caulking connection operation, the stroke (axial stroke) of the rotary press shaft 100 can be set slightly larger in consideration of safety, and by setting the stroke slightly larger, the stroke becomes excessive. However, in the second caulking step, the excessive stroke is absorbed by the elastic spring 41 being elastically deformed, thereby preventing the excessive caulking from being performed. As a result, even if there is some error in the stroke setting of the rotary press shaft 100, and even if there is some variation in the dimensional accuracy and placement position accuracy of the object to be caulked, proper caulking is performed and defective products are generated. The reduction of the rate, the airtightness of the swaged portion, and the improvement of the pressure resistance performance are achieved.

[0039]

As will be understood from the above description, according to the swaging tool according to the first aspect of the present invention, the main body is driven in the axial direction of the rotary press shaft, so that the movable support member The attached holding member abuts against the non-caulking deformed portion in the fixed arrangement from the axial direction,
The main body is driven in the axial direction of the rotary press shaft, and the relative movement of the pressing member with respect to the movable support member is regulated, whereby the main body is relatively displaced in the axial direction of the rotary press shaft with respect to the movable support member. The roller pedestal member moves radially inward of the rotary press shaft by the link member due to the displacement, and the caulking roller revolves around the central axis of the object to be caulked, while the caulking deformed portion from the radial direction of the object to be caulked. It is pressed and deforms the entire circumference of the caulked portion radially inward.
The radial inward movement of the roller pedestal member is defined by the contact of the roller pedestal member with the stopper member.
This determines the amount of deformation that deforms the caulking deformed portion radially inward over the entire circumference of the caulked portion, and after the roller pedestal member is positioned at the radially inward maximum movement position where it abuts against the stopper member. Also, by continuously driving the main body in the axial direction of the rotary press shaft, the movable support member moves in the axial direction of the rotary press shaft with respect to the holding member while deforming the absorbing spring, and the caulking roller is swaged. While being revolved around the central axis of the object, it is pressed against the object to be caulked from the central axis direction of the object to be caulked, and deforms the object to be caulked in the axial direction over the entire circumference of the caulked part. The stroke that can be moved in the axial direction can be set slightly larger in consideration of safety, and the slightly larger stroke allows the absorption spring to elastically deform even if the stroke becomes excessive. Excess stroke is absorbed by,
Excessive caulking is avoided, and even if there is a slight error in the stroke setting of the rotary press shaft, or if there is some variation in the dimensional accuracy and placement position accuracy of the object to be caulked, proper caulking connection It is possible to reduce the defective product occurrence rate and to improve the degree of sealing of the swaged portion.

According to the caulking connection tool according to the second aspect of the invention, the caulking portion is radially inwardly and axially caulked by the concave portion of the caulking roller corresponding to the shape after caulking of the deformed portion. The deformation of the deformed portion is performed so as to be rounded, and the caulking connection by the curl deformation can be performed with a high degree of sealing.

According to the swaging tool according to the third aspect of the present invention, the link member is a support point of the movable support member by the main body being displaced relative to the movable support member in the axial direction of the rotary press shaft. Since the roller pedestal member is moved inward in the radial direction of the rotary press shaft by the rotation of the link member around the intermediate portion, the roller pedestal member is moved by the simple link mechanism to the diameter of the rotary press shaft. Can be moved in any direction.

According to the caulking connection method according to the fourth aspect of the invention, the concave portion corresponding to the shape after the caulking of the deformed portion to be caulked is provided at its outer peripheral corner and rotatable around its own central axis. Using a caulking roller, in the first caulking step, moving the caulking roller inward in the radial direction to a predetermined maximum movement position, and revolving the caulking roller around the central axis of the object to be caulked. The concave portion of the caulking roller is pressed against the caulking deformed portion from the radial direction of the caulked object, and the caulking deformed portion is pressed inward over the entire circumference of the caulked object, and caulked in the next second caulking step. The roller is moved in the central axis direction of the object to be caulked, and the concave portion of the caulking roller is pressed from the central axis direction of the object to be caulked to the deformed portion while caulking the roller around the central axis of the object to be caulked. In the caulking deformed portion, the portion pressed inward by the concave portion of the caulking roller in the first caulking step is pressed in the central axis direction of the object to be caulked over the entire circumference of the object to be caulked. The caulking step is performed under the elastic deformation of an absorbing spring provided between the rotating press shaft that drives the caulking roller in its own revolution drive and the central axis direction and the caulking roller, and thus can be moved in the axial direction. The stroke of the rotary press shaft can be set slightly larger in consideration of safety.By setting the stroke slightly larger, even if the stroke becomes excessive, the excess spring is elastically deformed to absorb the excess stroke, and the excess stroke is absorbed. Caulking is avoided, and even if there is a slight error in the stroke setting of the rotary press shaft, there is some variation in the dimensional accuracy and placement position accuracy of the workpiece to be caulked. Even if there is, it is possible to perform proper caulking, reduction of defective occurrence rate, it is possible to improve the tightness of the crimping deformation portion.

[Brief description of the drawings]

FIG. 1 is a first embodiment of a swaging tool according to the present invention;
FIG.

FIG. 2 is a longitudinal sectional view showing a lowered state of the swaging tool shown in FIG. 1;

FIG. 3 is a bottom view showing the arrangement of the caulking connection tool according to the present invention before the caulking rollers are moved inward in the radial direction.

FIG. 4 is a longitudinal sectional view showing a completed state of a first caulking step of the caulking connection tool of FIG. 1;

5 is a longitudinal sectional view showing a state in which the second caulking step of the caulking connection tool of FIG. 1 is completed and a vertical cross section being lowered.

FIG. 6 is a bottom view showing the arrangement of the caulking connection tool according to the present invention after the caulking rollers are moved inward in the radial direction.

FIG. 7 is an enlarged vertical sectional view of a main part of the caulking tool shown in FIG. 1, showing a first caulking step completed state.

FIG. 8 is a longitudinal sectional view showing an enlarged vertical section lowering state of a main part of the caulking connection tool of FIG. 1 showing a second caulking step completed state.

FIG. 9 is a longitudinal sectional view showing a pressure sensor as one specific example of an object to be caulked.

FIGS. 10A to 10C are explanatory diagrams each showing a caulking failure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Caulking tool 3 Main body 7 Movable support member 9 Through bolt 13 Compression coil spring 15 Roller pedestal member 19 Caulking roller 21 Depressed portion 23 Stopper member 25 Link member 37 Mounting bolt 39 Pressing member 41 Absorbing spring 50 Work holder 100 Rotating press shaft W Pressure sensor

Continued on the front page (72) Inventor Yuji Kimura 1311 Aobadai, Tokorozawa-shi, Saitama Prefecture Sagimiya Seisakusho Co., Ltd. (72) Inventor Kazushige Suzuki 1311 Aobadai, Tokorozawa-shi, Saitama Pref.Sagimiya Seisakusho Co., Ltd. 72) Inventor Takashi Tojo 1311 Aobadai, Tokorozawa, Saitama Prefecture Sagimiya Seisakusho Co., Ltd.

Claims (4)

[Claims] 1. A caulking connection tool used to caulk the caulking deformed part to the non-caulking deformed part in a state where the caulking deformed part is attached to the non-caulking deformed part to form an object to be caulked, A main body attached to the rotary press shaft and movable in the axial direction of the rotary press shaft; a movable support member attached to the main body so as to be displaceable by a predetermined amount in the axial direction of the rotary press shaft; A roller pedestal member attached to the member so as to be movable in the radial direction of the rotary press shaft; and a caulking roller attached to the roller pedestal member rotatably around its own central axis parallel to the central axis of the main body. The main body, the movable support member, and the roller pedestal member are pivotally connected to each other, and the main body and the movable support member approach in the axial direction of the rotary press shaft. A link member for driving the roller pedestal member radially inward of the rotary press shaft; and a maximum movement position of the roller pedestal member fixed to the movable support member and radially inward of the rotary press shaft. A stopper member that is attached to the movable support member so as to be displaceable by a predetermined amount in the axial direction of the rotary press shaft, and that abuts the fixed non-crimping portion from the axial direction, An absorbing spring for urging the holding member in a direction away from the movable support member in the axial direction of the rotary press shaft. 2. The caulking connection tool according to claim 1, wherein the caulking roller is a caulking roller having a concave portion corresponding to a shape after caulking of the deformed portion to be caulked at an outer peripheral corner. 3. The link member has an intermediate portion rotatably supported by the movable support member, one end pivotally connected to the main body, and the other end pivotally connected to the roller pedestal member. The swaging tool according to claim 1 or 2, wherein: 4. A method of caulking the caulked deformation portion to the non-caulked deformation portion in a state where the caulked deformation portion is attached to the non-caulked deformation portion to form an object to be caulked. Using a caulking roller that has a concave portion corresponding to the shape after caulking at its outer peripheral corner and rotatable around its own central axis, moving the caulking roller inward in its own radial direction by a predetermined maximum movement To the position and press the concave portion against the deformed portion to be caulked from the radial direction of the caulked object while revolving the caulking roller around the central axis of the object to be caulked, over the entire circumference of the object to be caulked. Pressurizing the crimped deformation portion inward by pressing
A caulking step, and moving the caulking roller in the central axis direction of the object to be caulked, and revolving the caulking roller about the central axis of the object to be caulked while the caulking deformed portion and the caulking portion to form the concave portion. Pressing from the central axis direction of the object, the portion of the caulking deformed portion, which is pressed inward by the concave portion of the caulking roller in the first caulking step, extends over the entire circumference of the object to be caulked. A second caulking step of applying pressure in the direction of the central axis of the caulking object, wherein the second caulking step is a rotary press shaft that drives the caulking roller in its own revolution drive and in the center axis direction, and the caulking roller; The method being performed under the elastic deformation of an absorption spring provided between the two.