JP2008000876A - Apparatus and method for driving pin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology which enables the enhancement of productivity by stabilizing an operation time for pin-driving in a connection pin formed in such a manner that the lower end of a pin has an engagement craw and the upper end has a handle with a brittle section. <P>SOLUTION: The pin driving apparatus comprises a grip 51 for gripping a handle and a circular arc guide 160, and equipped with a grip support member 92 for supporting the grip 51 with this circular arc guide 160, and a turning mechanism 58 for turning the grip 51 around the brittle section 42 along the circular arc guide 160. The circular arc guide 160 includes an outside circular arc guide 169 and an inside circular arc guide 168, and the outside circular arc guide 169 is set longer so that the turning end 164 of the outside circular arc guide 169 extends from a line connecting the turning end 163 of the inside circular arc guide 168 and the brittle section 42. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a technique for driving connecting pins into a plurality of stacked plate members and fastening these plate members together.

A resin connecting pin consisting of a pin portion having a locking claw at the lower end and a handle portion provided on the upper end of the pin portion via a fragile portion is driven into a plurality of laminated plate materials, Is known (for example, see Patent Document 1).
JP 2006-147460 A (FIG. 8)

Patent document 1 is demonstrated based on the following figure.
FIG. 9 is a diagram for explaining the insertion of the connecting pin into the laminated thin plates according to the prior art. The handle 204 is provided at the upper end of the pin 202 having the locking claw 201 at the lower end via the fragile portion 203. It is shown that the connecting pin 200 made of resin is inserted into the insertion holes 211 and 212 provided coaxially with the stacked plate members 205 and 206, and the plate members 205, 206, and 207 are fastened. After inserting the connecting pin 200 having such a configuration into the insertion holes 211 and 212, the handle portion 204 is gripped and bent, and the weakened portion 203 formed at the lower end of the handle portion 204 is moved from the pin portion 202 to the handle portion. 204 is excised. The handle portion 204 is excised by the operator holding the handle portion 204 and tilting it.

  Since the handle 204 is manually removed, the work time inevitably varies. Productivity decreases when working hours are long due to individual differences.

  INDUSTRIAL APPLICABILITY The present invention can stabilize the working time of pinning work and increase productivity in a connecting pin in which a handle portion is provided via a fragile portion at the upper end of a pin portion having a locking claw at the lower end. The issue is to provide technology.

  The invention according to claim 1 is an apparatus for handling a connecting pin in which a handle portion is provided via a fragile portion at the upper end of a pin portion having a locking claw at the lower end, and the connecting pin is moved by gripping the handle portion. A pinning device capable of performing a series of operations in which a pin portion is inserted into insertion holes of a plurality of plate members stacked in advance and then the handle portion is excised. A gripping part to be gripped, an arcuate guide part drawn around a fragile part in the connecting pin inserted into the insertion hole, a gripping part support member that supports the gripping part via the arcuate guide part, and along the arcuate guide part And a gripping part rotating mechanism that rotates the gripping part about the fragile part, and an elevating mechanism that collectively moves the gripping part rotating mechanism and the gripping part support member up and down.

  In the invention according to claim 2, the arc guide portion includes an outer arc guide portion and an inner arc guide portion provided closer to the fragile portion than the outer arc guide portion, and the inner arc guide portion rotates. The outer arc guide portion is set to be longer than the line connecting the end portion and the fragile portion so that the rotation end of the outer arc guide portion protrudes.

  The invention according to claim 3 is a method of handling a connecting pin in which a handle portion is provided via a fragile portion at the upper end of a pin portion having a locking claw at the lower end, and the connecting pin is moved by gripping the handle portion. A pinning method for performing a series of operations in which a pin portion is inserted into insertion holes of a plurality of previously laminated plate materials, and then the handle portion is excised, and the step of excising the handle portion is inserted into the insertion hole. A handle portion rotating step of rotating the handle portion around the weak portion of the connecting pin, and further rotating the weak portion from the weak portion around a predetermined position in the substantially longitudinal axis direction of the handle portion to shear fracture the weak portion It consists of two processes, a weak part fracture process.

  In the invention according to claim 1, the pinning device includes a gripping portion and an arc guide portion, a gripping portion support member that supports the gripping portion via the arc guide portion, and a gripping portion along the arc guide portion. A gripping portion rotating mechanism that rotates around the fragile portion, and an elevating mechanism that moves the gripping portion rotating mechanism and the gripping portion support member up and down collectively are provided.

That is, since the pinning device is a device that can grip and move the handle portion of the connecting pin, insert the pin portion into the insertion holes of a plurality of previously laminated plate materials, and then cut the handle portion. It is possible to automate the pinning work without interposing an operator in the pinning work.
Since the pinning work is automated, the work time of the pinning work is constant, and the productivity can be greatly increased.

Whether or not the fragile part can cut well is an important factor of the rotation speed of the handle part. That is, if the handle portion is slowly rotated, the resin extends at the fragile portion and cannot be cut. On the other hand, if the handle is quickly rotated, the cutting is completed before extending.
In the present invention, since the rotation of the handle portion is automated, the rotation speed can be increased and the productivity can be improved.

  In the invention according to claim 2, the arc guide portion includes an outer arc guide portion and an inner arc guide portion provided closer to the fragile portion than the outer arc guide portion, and the inner arc guide portion rotates. Since the outer arc guide portion is set to be longer than the rotation end of the outer arc guide portion beyond the line connecting the end portion and the fragile portion, after the gripping portion reaches the rotation end of the inner arc guide portion, It can be rotated around this rotation end. Since the center of rotation of the gripping part is the end of rotation of the inner circular arc guide part, the brittle part of the connecting pin is subjected to shearing force in addition to bending force, so that the handle part can be surely cut off from the pin part. .

  In the invention according to claim 3, the step of cutting the handle portion includes a handle portion rotating step of rotating the handle portion around the weak portion, and a predetermined position in the substantially longitudinal axis direction of the handle portion from the weak portion. Further, the handle portion is separated from the pin portion by two steps including a weak portion breaking step in which the weak portion is sheared and broken. By separating the handle portion from the pin portion, the handle portion can be surely excised from the pin portion.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is an exploded perspective view of a unit fuel cell handled in the present invention. The unit fuel cell 10 includes an electrolytic membrane structure 11 and a pair of plate members 12 provided on both sides in the thickness direction of the electrolytic membrane structure 11. The separators 13 and 14 and a plurality of connecting pins 16 provided in the vicinity of the outer periphery of the separators 13 and 14 (... indicates a plurality. The same shall apply hereinafter). The electrolytic membrane structure 11 has a pair of electrodes (not shown). As will be described later, a part of each connecting pin 16... Is cut off after fastening.

Openings 21 to 24 are respectively formed on the left and right and upper and lower sides of the separators 13 and 14, and openings 25 to 28 are formed in the center portions of the upper and lower ends of the separators 13 and 14.
Seal layers 31 and 32 coated with insulating resin are integrally provided on both surfaces of the metal plates of the separators 13 and 14.

  In the vicinity of the outer periphery of the separators 13, 14, there are provided eight fastening bases 33, which are formed by closing the notches formed on the outer peripheral edge of the metal plate with an insulating resin, and the insertion bases 34.・ ・ Is formed. These insertion holes 34 are provided at positions that are coaxial when the separators 13 and 14 are overlapped with each other.

In addition, although one insertion base 34 is provided with two insertion holes 34, 34, one of the holes 34 is selected according to the product specifications and the like, and the connecting pins 16 are inserted.
A fuel cell stack is formed by stacking a plurality of unit fuel cells 10 fastened by connecting pins 16. Reference numerals 36 and 36 denote fixing holes.

FIG. 2 is a cross-sectional view of a gripping portion provided in the pinning device according to the present invention.
The connecting pin 16 includes, in order from the lower end to the upper end, a pin portion 41 that is a main body of the connecting pin 16, a weak portion 42 that is provided on the upper portion of the pin portion 41 and causes breakage, and the weak portion 42. And a handle portion 43 provided on the upper portion and holding the connecting pin 16. The pin portion 41 is provided with a locking claw 44 and a flange portion 45 for fastening the plate members 12 and 12 together.
That is, the connecting pin 16 is provided with a handle portion 43 via a fragile portion 42 at the upper end of a pin portion 41 having a locking claw 44 at the lower end. 47 and 47 are metal plates.

  The connecting pin 16 having such a configuration is gripped by the gripping portion 51 of the pinning device 50, and the connecting pin 16 is moved above the insertion holes 34a and 34b formed in the separators 13 and 14, so The axis 44 is aligned with the axes of the insertion holes 34a and 34b.

  Thereafter, the handle portion 43 is gripped and the connecting pin 16 is moved, and the pin portion 41 is inserted into the insertion holes 34 provided in the separators 13 and 14 which are a plurality of plates laminated in advance. A configuration of the pinning device 50 that automatically performs a series of operations of cutting will be described.

  FIG. 3 is a principle diagram of the pinning device according to the present invention. A base 53 is provided in the pinning device 50, a table 54 provided on the base 53 for setting a laminate as a work, and a main provided in the base 53. A frame 52, a gripper 51 that is provided on the table 54 so as to be movable and grips a connecting pin (reference numeral 16 in FIG. 2), and a moving mechanism 55 that enables the gripper 51 to move are provided.

The moving mechanism 55 includes a horizontal moving mechanism 56 that allows the gripping portion 51 that grips the connecting pin (reference numeral 16 in FIG. 2) to move left and right and back and forth of the table, and the gripping portion 51 that is attached to the horizontal moving mechanism 56. There is an elevating mechanism 57 that can be moved up and down, and a rotating mechanism 58 that is attached to the elevating mechanism 57 and rotates the grip portion 51.
Details of the horizontal movement mechanism 56, the lifting mechanism 57, and the rotation mechanism 58 will be described later.

An air cylinder 62 is applied as the elevating means 61 of the elevating mechanism 57, and an air cylinder 64 is applied as the rotating means 63 of the rotating mechanism 58.
The rotating means 63 is connected to a lift control electromagnetic valve 72 for switching the direction of compressed air via the pipe members 71a and 71b, and the gripping means 73 is gripped for switching the direction of the compressed air via the pipe member 74. A control solenoid valve 75 is connected.

  In addition, two horizontal movement control electromagnetic valves for switching the direction of the compressed air to be supplied are connected to the horizontal movement mechanism 56, but the configuration is the same as that of the electromagnetic valve included in the rotating means 63 and is omitted.

In the figure, 78 is a venturi pipe, 79 is a silencer, 81 to 83 are pipe members, 84 is a compressed air supply port, and 85 to 87 are control cables for connecting between the control means 91 and an electromagnetic valve or the like.
In this embodiment, an air cylinder is used as the driving means of the horizontal movement mechanism 56, but it is possible to use driving means such as a ball screw and a servo mechanism or a linear motor.

  FIG. 4 is a side view of the pinning device according to the present invention. The pinning device 50 includes a main frame 52 and a gripping portion (reference numeral 51 in FIG. 3) attached to the main frame 52 in the left and right and front and back directions. A horizontal movement mechanism 56 that enables movement, a gripping portion support member 92 that is attached to the horizontal movement mechanism 56 and supports a gripping portion (reference numeral 51 in FIG. 3), and the gripping portion support member 92 and the gripping portion 51 are And an elevating mechanism 57 that can be moved up and down, and a rotating means 63 that is attached to the elevating mechanism 57 and rotates the grip 51 (also referred to as “rotating drive means 63”).

  The horizontal movement mechanism 56 includes a first rail portion 94 provided on the left and right sides of the drawing, a first slider 95 slidably provided on the first rail portion 94, and a first slider 95 attached to the main frame 52. First horizontal driving means 96 for driving, second rail portions 97 and 97 provided on the first slider 95 on the back side of the figure, and a second slider 98 provided slidably on the second rail portions 97 and 97, And a second horizontal driving means 99 which is provided on the first slider 95 and drives the second slider 98.

The pinning device 50 moves the grip 51 in the horizontal direction by a base 53, a main frame 52 raised from the base 53, and first and second horizontal driving means 96, 99 attached to the main frame 52. A horizontal movement mechanism 56 that can be moved, a lifting mechanism 57 that is suspended from the horizontal movement mechanism 56 and that allows the gripping part to be moved up and down by the lifting and lowering means 61, a gripping part support member 92 that is attached to the lifting mechanism 57, and a gripping part (Reference numeral 51 in FIG. 2).
Therefore, the gripping part support member 92 and the gripping part 51 are movably provided above the table 54.

FIG. 5 is a side view of an essential part of the pinning device according to the present invention, and FIG. Hereinafter, description will be given with reference to FIGS. 5 and 6.
A holder member 111 that holds the grip portion support member 92 is attached to the lower end portion 57 b of the lift mechanism 57, and a rotation mechanism 58 (“grip portion rotation” is attached to the holder member 111 through the first support shaft 112. It is also referred to as “mechanism 58”.) And a gripping portion support member 92 is provided.
Hereinafter, a detailed configuration of the rotation mechanism 58 will be described.

  The rotating mechanism 58 is provided with a rotating means 63 that is rotatably attached to the lower portion by the first support shaft 112, a connecting member 115 that is attached to a rod tip 114 of the rotating means 63, and a connecting member 115. An L-shaped L-shaped link 118 that is rotatably attached via the first pin 116, a second support shaft 122 disposed at a bent portion 119 of the L-shaped link 118, and the other end of the L-shaped link 118 A roller member 124 that is rotatably provided on the second pin 123 via the second pin 123, a gripping portion main body 125 that is pressed by the roller member 124 and rotated around the fragile portion 42 of the connecting pin 16, and the gripping portion First to third guide shafts 127 to 129 provided horizontally from the main body 125 toward the front of the figure, and engage with the first to third guide shafts 127 to 129 and a gripping portion support member 1 to 3rd circular arc grooves 131 to 133 formed in 2, and a holding shaft 135 that protrudes horizontally from the holding portion support member 92 to the front of the drawing and a second guide shaft 128, and are held by the holding portion. And a spring member 136 that regulates the relative position between the member 92 and the second guide shaft 128 within a certain range.

A detailed configuration of the grip part support member 92 will be described.
The holding portion support member 92 includes a horizontal member 142 that is horizontally attached to the rod tip 141 of the lifting means (reference numeral 61 in FIG. 4), and left and right vertical members that extend downward from the left and right ends of the horizontal member 142. It is a member having a hollow rectangular cross-sectional shape composed of 143L, 143R, and a lateral reinforcing member 144 that spans the front part of the lower end of the vertical members 143L, 143R.

  Horizontal members 145 and 146 extend horizontally outward from these vertical members 143L and 143R, and spring shafts 147... Are attached downward from these horizontal members 145 and 146, and plate members are attached to these spring shafts 147. Holding springs 148... Are inserted, and plate material pressing portions 149 and 149 for pressing the surface of the plate material 12 are attached to the lower ends of the spring shafts 147.

The rod tip portion 114 of the rotating means 63 is disposed downwardly inward of the vertical members 143L and 143R.
Both ends of the first support shaft 112 are supported by the holder member 111, and the second support shaft 122 is supported by the vertical members 143 </ b> L and 143 </ b> R whose both ends are part of the grip support member 92. Yes.

  Therefore, the rotation mechanism 58 includes a spring member 136 and a rotation means 63 that span between the grip portion main body 125 and the grip portion support member 92 with the first support shaft 112 and the second support shaft 122 as reference axes. Therefore, the grip part main body 125 can be rotated by extending and contracting the rod tip 114 of the rotating means 63.

  A circular arc guide portion 160 is formed in the gripping portion support member 92 and is arranged on the weak portion 42 side. The start point 162 starts turning around one end 161a around the weak portion 42 and turns around the other end 161b. Are arranged on the side away from the fragile portion 42, and the end point (rotation end) of the first arc guide portion 161 is provided. ) A second arc guide portion 166 provided with an extending portion 165 that allows the gripping portion 51 to turn around 163, and a third arc guide portion 167 provided outside the second arc guide portion 166. And consist of

The third arc guide portion 167 and the third guide shaft 129 are not necessary in principle, but are provided in order to smoothly rotate the grip portion 51.
That is, the arc guide portion 160 has an outer arc guide portion 169 as the second arc guide portion 166 and an inner arc as the first arc guide portion 161 provided closer to the fragile portion 42 than the outer arc guide portion 169. The outer arc guide portion 169 includes a guide portion 168 so that the rotation end 164 of the outer arc guide portion 169 protrudes beyond a line 174 connecting the rotation end 163 of the inner arc guide portion 168 and the fragile portion 42. Is set longer.

  In the present embodiment, the arc guide portion 160 is an arc guide groove, and first to third guide shafts 127 to 129 that engage with the arc guide grooves are provided, and the first to third guides are centered on the fragile portion 42 along the guide groove. The third guide shafts 127 to 129 are rotated. In addition to this, for example, the arc guide portion 160 is an arc guide rail, and a concave member that engages with the arc guide rail is provided, along the arc guide rail. You may make it the structure to which a recessed part material moves.

  In FIG. 6, the holding shaft 135, the second guide shaft 128, and the spring member 136 spanned between the holding shaft 135 and the second guide shaft 128 are provided on the right side of the rotating means 63. It may be provided in addition to the left side of the rotating means 63. Thus, by supporting the grip part main body 125 from both the left and right sides, the grip part main body 125 can be rotated more stably.

Returning to FIG. 2, the detailed structure of the connecting pin grip 51 will be described.
From the fitting portion 171 that is arranged at the lower end portion of the holding portion main body 125 and fits to the outer peripheral surface of the handle portion 43 of the connecting pin 16, and the fitting portion 171 communicates with the fitting portion 171. And an air port 172 which is a port for supplying or discharging compressed air. Then, in response to a command from the control means (reference numeral 91 in FIG. 3), the aforementioned gripping control solenoid valve (reference numeral 75 in FIG. 3) is operated to change the flow of compressed air, whereby the handle 43 of the connecting pin 16 is changed. Is adsorbed or discharged.

  Returning to FIG. 3, the connecting pin gripping means 73 is connected to an air supply means (not shown), a venturi pipe 78, a grip control electromagnetic valve 75 connected to the venturi pipe 73, and a grip control electromagnetic valve 75. The pipe member 74 is a main component.

  Returning to FIG. 5, the pinning device 50 rotates around the fragile portion 42 along the inner arc guide portion 168 as the first arc guide portion 161 provided on the gripping portion support member 92 by the rotating means 63. A moving mechanism 58, and a gripping portion 51 for gripping or releasing the handle portion (reference numeral 43 in FIG. 2) of the connecting pin 16 by a connecting pin gripping means (reference numeral 73 in FIG. 3) attached to the rotating mechanism 58. , With.

The operation of the pinning device described above will be described next.
FIG. 7 is an explanatory diagram from the handle gripping process to the handle rotating process.
In (a), the gripper 51 is moved to a connection pin stocker (not shown), and the connection pin 16 is attracted and gripped, and the gripping part in which the connection pin 16 is gripped by the moving mechanism (reference numeral 55 in FIG. 3). 51 is moved horizontally and vertically and stopped at a predetermined position above the insertion hole 34. That is, a handle portion gripping process in which the handle portion 43 is gripped and the connecting pin 16 is moved to a predetermined position is shown.

4B shows a connecting pin insertion step in which the gripping portion 51 is lowered by an elevating mechanism (reference numeral 57 in FIG. 4), and the connecting pin 16 is driven into the insertion holes 34 of the separators 13 and 14 as the plate material 12. FIG.
At this time, the upper surface of the plate material 12 is pressed by the plate material pressing portion (reference numeral 149 in FIG. 6).

  In (c), the grip 51 is rotated around the fragile portion 42 of the connecting pin 16, and the first guide shaft 127 is moved to the rotation end 163 of the first arc guide 161 by the rotation mechanism 58. The handle part rotation process which cuts the handle part 43 in the weak part 42 is shown. At this time, the surface of the plate material 12 is pressed by a plate material pressing portion (reference numeral 149 in FIG. 6).

FIG. 8 is an explanatory diagram from the fragile portion breaking step to the gripping portion retracting step.
In (a), the grip portion 51 is rotated about the first guide shaft 127 and the second guide shaft 128 is moved to the rotation end 164 of the second arc guide portion 166 to cut the handle portion 43. The weak part fracture process is shown. At this time, the surface of the plate material 12 is pressed by a plate material pressing portion (reference numeral 149 in FIG. 6).

  That is, the step of excising the handle portion 43 includes a handle portion rotating step of rotating the handle portion 43 around the weakened portion 42 of the connecting pin 16 inserted into the insertion hole 34, and an abbreviation of the handle portion 43 from the weakened portion 42. It consists of two steps including a weak portion breaking step in which the weak portion 42 is sheared and broken by further rotating around the first guide shaft 127 as a predetermined position in the direction of the longitudinal axis 43J.

  Returning to FIG. 5, the arc guide portion 160 includes an outer arc guide portion 169 and an inner arc guide portion 168 provided closer to the fragile portion 42 than the outer arc guide portion 169. Since the outer arc guide portion 169 is set so that the rotation end 164 of the outer arc guide portion 169 protrudes beyond the line connecting the rotation end 163 and the fragile portion 42 of 168, the grip portion 51 becomes the inner arc guide. After reaching the rotation end 163 of the part 168, the rotation end 163 can be rotated as a center. Since the rotation center of the gripping part 51 is the rotation end 163 of the inner arc guide part 168, the fragile part 42 is subjected to a shearing force in addition to the bending force. Can be excised reliably.

  FIG. 8B shows a gripping part returning process in which the second guide shaft 128 is returned to its rotation start point and the first guide shaft 127 is returned to its rotation start point 162. At this time, the upper surface of the plate material 12 is pressed by the plate material pressing portion (reference numeral 149 in FIG. 6).

(C) shows a gripping part retreating process in which the elevating mechanism 57 is raised and the gripping part 51 is retracted. At this time, the pressing of the upper surface of the plate material 12 by the plate material pressing portion (reference numeral 149 in FIG. 6) is released.
Then, by discharging the gripped handle 43 from the gripper 51, one cycle of driving the connecting pin is completed.

The pinning device 50 moves by gripping the handle portion 43 of the connecting pin 16, inserts the pin portion 41 into the insertion holes 34 of a plurality of plate members stacked in advance, and then cuts the handle portion 43. Therefore, the pinning operation can be automated without interposing an operator in the pinning operation.
Since the pinning work is automated, the work time of the pinning work is constant, and the productivity can be greatly increased.

Whether or not the fragile portion can be cut well is an important factor of the rotation speed of the handle portion. That is, if the handle portion is slowly rotated, the resin extends at the fragile portion and cannot be cut. On the other hand, if the handle is quickly rotated, the cutting is completed before extending.
In the present invention, since the rotation of the handle portion 43 is automated, the rotation speed can be increased and the productivity can be improved.

  Although the pinning device according to the present invention is applied for fastening a unit fuel cell in the embodiment, it can also be applied for fastening a plurality of previously laminated plates.

  The pinning device of the present invention is suitable for fastening a unit fuel cell comprising an electrode membrane structure and a pair of separators that sandwich the electrode membrane structure.

It is a disassembled perspective view of the unit fuel cell handled by this invention. It is sectional drawing of the holding part with which the pinning apparatus which concerns on this invention is equipped. It is a principle diagram of the pinning device according to the present invention. It is a side view of the pinning apparatus which concerns on this invention. It is a principal part side view of the pinning apparatus which concerns on this invention. FIG. 6 is a view taken along arrow 6 in FIG. 5. It is explanatory drawing from a handle part holding process to a handle part rotation process. It is explanatory drawing from a weak part fracture | rupture process to a holding part retracting process. It is a figure explaining inserting a connecting pin in the laminated thin board concerning a prior art.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 12 ... Plate material, 16 ... Connecting pin, 34 ... Insertion hole, 41 ... Pin part, 42 ... Fragile part, 43 ... Handle part, 43J ... Long axis of handle part, 44 ... Locking claw, 50 ... Pinning device, 51 ... Gripping part, 57 ... Elevating mechanism, 58 ... Gripping part rotation mechanism, 92 ... Gripping part support member, 160 ... Arc guide part, 163 ... End of rotation of inner arc guide part, 164 ... Rotation of outer arc guide part End, 168 ... inner arc guide part, 169 ... outer arc guide part.

Claims (3)

A device for handling a connecting pin in which a handle portion is provided via a fragile portion at the upper end of a pin portion having a locking claw at the lower end, and the connecting pin is moved by holding the handle portion and a plurality of layers stacked in advance. A pinning device capable of performing a series of operations for inserting the pin portion into the insertion hole of the plate material and then cutting the handle portion,
This pinning device has a gripping part for gripping the handle part, and an arc guide part drawn around a fragile part of the connecting pin inserted into the insertion hole, and the gripping part is held via the arcuate guide part. A holding part supporting member to be supported, a holding part rotating mechanism that rotates the holding part about the fragile part along the arc guide part, and the holding part rotating mechanism and the holding part support member in a lump. A pinning device comprising: an elevating mechanism for elevating and lowering.   The arc guide portion includes an outer arc guide portion and an inner arc guide portion provided closer to the fragile portion than the outer arc guide portion, and the end of rotation of the inner arc guide portion and the fragile portion 2. The pinning device according to claim 1, wherein the outer arc guide portion is set longer than a line connecting the outer arc guide portions so that a rotation end of the outer arc guide portion protrudes. It is a method of handling a connecting pin in which a handle portion is provided via a fragile portion at the upper end of a pin portion having a locking claw at the lower end, and the connecting pin is moved by gripping the handle portion, and a plurality of layers stacked in advance. A pinning method for performing a series of operations, inserting the pin portion into the insertion hole of the plate material, and then excising the handle portion,
The step of excising the handle portion includes a handle portion rotating step of rotating the handle portion around the weakened portion of the connecting pin inserted into the insertion hole, and the substantially longitudinal axis direction of the handle portion from the weakened portion. A pinning method comprising two steps of a weak part breaking step of further rotating around a predetermined position to shear break the weak part.

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